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-rw-r--r--3rdParty/CAres/src/ares.h494
-rw-r--r--3rdParty/CAres/src/ares__close_sockets.c67
-rw-r--r--3rdParty/CAres/src/ares__get_hostent.c264
-rw-r--r--3rdParty/CAres/src/ares__read_line.c67
-rw-r--r--3rdParty/CAres/src/ares__timeval.c112
-rw-r--r--3rdParty/CAres/src/ares_build.h253
-rw-r--r--3rdParty/CAres/src/ares_cancel.c64
-rw-r--r--3rdParty/CAres/src/ares_config.h513
-rw-r--r--3rdParty/CAres/src/ares_data.c143
-rw-r--r--3rdParty/CAres/src/ares_data.h62
-rw-r--r--3rdParty/CAres/src/ares_destroy.c93
-rw-r--r--3rdParty/CAres/src/ares_dns.h91
-rw-r--r--3rdParty/CAres/src/ares_expand_name.c190
-rw-r--r--3rdParty/CAres/src/ares_expand_string.c72
-rw-r--r--3rdParty/CAres/src/ares_fds.c63
-rw-r--r--3rdParty/CAres/src/ares_free_hostent.c40
-rw-r--r--3rdParty/CAres/src/ares_free_string.c26
-rw-r--r--3rdParty/CAres/src/ares_gethostbyaddr.c291
-rw-r--r--3rdParty/CAres/src/ares_gethostbyname.c511
-rw-r--r--3rdParty/CAres/src/ares_getnameinfo.c409
-rw-r--r--3rdParty/CAres/src/ares_getopt.c123
-rw-r--r--3rdParty/CAres/src/ares_getopt.h53
-rw-r--r--3rdParty/CAres/src/ares_getsock.c75
-rw-r--r--3rdParty/CAres/src/ares_init.c1582
-rw-r--r--3rdParty/CAres/src/ares_ipv6.h84
-rw-r--r--3rdParty/CAres/src/ares_library_init.c133
-rw-r--r--3rdParty/CAres/src/ares_library_init.h40
-rw-r--r--3rdParty/CAres/src/ares_llist.c87
-rw-r--r--3rdParty/CAres/src/ares_llist.h43
-rw-r--r--3rdParty/CAres/src/ares_mkquery.c196
-rw-r--r--3rdParty/CAres/src/ares_parse_a_reply.c257
-rw-r--r--3rdParty/CAres/src/ares_parse_aaaa_reply.c257
-rw-r--r--3rdParty/CAres/src/ares_parse_ns_reply.c182
-rw-r--r--3rdParty/CAres/src/ares_parse_ptr_reply.c209
-rw-r--r--3rdParty/CAres/src/ares_parse_srv_reply.c180
-rw-r--r--3rdParty/CAres/src/ares_parse_txt_reply.c202
-rw-r--r--3rdParty/CAres/src/ares_private.h343
-rw-r--r--3rdParty/CAres/src/ares_process.c1170
-rw-r--r--3rdParty/CAres/src/ares_query.c184
-rw-r--r--3rdParty/CAres/src/ares_rules.h145
-rw-r--r--3rdParty/CAres/src/ares_search.c323
-rw-r--r--3rdParty/CAres/src/ares_send.c135
-rw-r--r--3rdParty/CAres/src/ares_setup.h198
-rw-r--r--3rdParty/CAres/src/ares_strcasecmp.c67
-rw-r--r--3rdParty/CAres/src/ares_strcasecmp.h31
-rw-r--r--3rdParty/CAres/src/ares_strdup.c43
-rw-r--r--3rdParty/CAres/src/ares_strdup.h27
-rw-r--r--3rdParty/CAres/src/ares_strerror.c57
-rw-r--r--3rdParty/CAres/src/ares_timeout.c81
-rw-r--r--3rdParty/CAres/src/ares_version.c12
-rw-r--r--3rdParty/CAres/src/ares_version.h22
-rw-r--r--3rdParty/CAres/src/ares_writev.c80
-rw-r--r--3rdParty/CAres/src/ares_writev.h37
-rw-r--r--3rdParty/CAres/src/bitncmp.c60
-rw-r--r--3rdParty/CAres/src/bitncmp.h27
-rw-r--r--3rdParty/CAres/src/config-win32.h341
-rw-r--r--3rdParty/CAres/src/inet_net_pton.c446
-rw-r--r--3rdParty/CAres/src/inet_net_pton.h32
-rw-r--r--3rdParty/CAres/src/inet_ntop.c232
-rw-r--r--3rdParty/CAres/src/inet_ntop.h27
-rw-r--r--3rdParty/CAres/src/nameser.h194
-rw-r--r--3rdParty/CAres/src/setup_once.h444
-rw-r--r--3rdParty/CAres/src/windows_port.c23
63 files changed, 12309 insertions, 0 deletions
diff --git a/3rdParty/CAres/src/ares.h b/3rdParty/CAres/src/ares.h
new file mode 100644
index 0000000..b1c2c22
--- /dev/null
+++ b/3rdParty/CAres/src/ares.h
@@ -0,0 +1,494 @@
+/* $Id: ares.h,v 1.72 2009-11-23 12:03:32 yangtse Exp $ */
+
+/* Copyright 1998, 2009 by the Massachusetts Institute of Technology.
+ * Copyright (C) 2007-2009 by Daniel Stenberg
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#ifndef ARES__H
+#define ARES__H
+
+#include "ares_version.h" /* c-ares version defines */
+#include "ares_build.h" /* c-ares build definitions */
+#include "ares_rules.h" /* c-ares rules enforcement */
+
+/*
+ * Define WIN32 when build target is Win32 API
+ */
+
+#if (defined(_WIN32) || defined(__WIN32__)) && \
+ !defined(WIN32) && !defined(__SYMBIAN32__)
+# define WIN32
+#endif
+
+#include <sys/types.h>
+
+/* HP-UX systems version 9, 10 and 11 lack sys/select.h and so does oldish
+ libc5-based Linux systems. Only include it on system that are known to
+ require it! */
+#if defined(_AIX) || defined(__NOVELL_LIBC__) || defined(__NetBSD__) || \
+ defined(__minix) || defined(__SYMBIAN32__) || defined(__INTEGRITY)
+#include <sys/select.h>
+#endif
+#if (defined(NETWARE) && !defined(__NOVELL_LIBC__))
+#include <sys/bsdskt.h>
+#endif
+
+#if defined(WATT32)
+# include <netinet/in.h>
+# include <sys/socket.h>
+# include <tcp.h>
+#elif defined(WIN32)
+# ifndef WIN32_LEAN_AND_MEAN
+# define WIN32_LEAN_AND_MEAN
+# endif
+# include <windows.h>
+# include <winsock2.h>
+# include <ws2tcpip.h>
+#else
+# include <sys/socket.h>
+# include <netinet/in.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+** c-ares external API function linkage decorations.
+*/
+
+#if !defined(CARES_STATICLIB) && \
+ (defined(WIN32) || defined(_WIN32) || defined(__SYMBIAN32__))
+ /* __declspec function decoration for Win32 and Symbian DLL's */
+# if defined(CARES_BUILDING_LIBRARY)
+# define CARES_EXTERN __declspec(dllexport)
+# else
+# define CARES_EXTERN __declspec(dllimport)
+# endif
+#else
+ /* visibility function decoration for other cases */
+# if !defined(CARES_SYMBOL_HIDING) || \
+ defined(WIN32) || defined(_WIN32) || defined(__SYMBIAN32__)
+# define CARES_EXTERN
+# else
+# define CARES_EXTERN CARES_SYMBOL_SCOPE_EXTERN
+# endif
+#endif
+
+
+#define ARES_SUCCESS 0
+
+/* Server error codes (ARES_ENODATA indicates no relevant answer) */
+#define ARES_ENODATA 1
+#define ARES_EFORMERR 2
+#define ARES_ESERVFAIL 3
+#define ARES_ENOTFOUND 4
+#define ARES_ENOTIMP 5
+#define ARES_EREFUSED 6
+
+/* Locally generated error codes */
+#define ARES_EBADQUERY 7
+#define ARES_EBADNAME 8
+#define ARES_EBADFAMILY 9
+#define ARES_EBADRESP 10
+#define ARES_ECONNREFUSED 11
+#define ARES_ETIMEOUT 12
+#define ARES_EOF 13
+#define ARES_EFILE 14
+#define ARES_ENOMEM 15
+#define ARES_EDESTRUCTION 16
+#define ARES_EBADSTR 17
+
+/* ares_getnameinfo error codes */
+#define ARES_EBADFLAGS 18
+
+/* ares_getaddrinfo error codes */
+#define ARES_ENONAME 19
+#define ARES_EBADHINTS 20
+
+/* Uninitialized library error code */
+#define ARES_ENOTINITIALIZED 21 /* introduced in 1.7.0 */
+
+/* ares_library_init error codes */
+#define ARES_ELOADIPHLPAPI 22 /* introduced in 1.7.0 */
+#define ARES_EADDRGETNETWORKPARAMS 23 /* introduced in 1.7.0 */
+
+/* More error codes */
+#define ARES_ECANCELLED 24 /* introduced in 1.7.0 */
+
+/* Flag values */
+#define ARES_FLAG_USEVC (1 << 0)
+#define ARES_FLAG_PRIMARY (1 << 1)
+#define ARES_FLAG_IGNTC (1 << 2)
+#define ARES_FLAG_NORECURSE (1 << 3)
+#define ARES_FLAG_STAYOPEN (1 << 4)
+#define ARES_FLAG_NOSEARCH (1 << 5)
+#define ARES_FLAG_NOALIASES (1 << 6)
+#define ARES_FLAG_NOCHECKRESP (1 << 7)
+
+/* Option mask values */
+#define ARES_OPT_FLAGS (1 << 0)
+#define ARES_OPT_TIMEOUT (1 << 1)
+#define ARES_OPT_TRIES (1 << 2)
+#define ARES_OPT_NDOTS (1 << 3)
+#define ARES_OPT_UDP_PORT (1 << 4)
+#define ARES_OPT_TCP_PORT (1 << 5)
+#define ARES_OPT_SERVERS (1 << 6)
+#define ARES_OPT_DOMAINS (1 << 7)
+#define ARES_OPT_LOOKUPS (1 << 8)
+#define ARES_OPT_SOCK_STATE_CB (1 << 9)
+#define ARES_OPT_SORTLIST (1 << 10)
+#define ARES_OPT_SOCK_SNDBUF (1 << 11)
+#define ARES_OPT_SOCK_RCVBUF (1 << 12)
+#define ARES_OPT_TIMEOUTMS (1 << 13)
+#define ARES_OPT_ROTATE (1 << 14)
+
+/* Nameinfo flag values */
+#define ARES_NI_NOFQDN (1 << 0)
+#define ARES_NI_NUMERICHOST (1 << 1)
+#define ARES_NI_NAMEREQD (1 << 2)
+#define ARES_NI_NUMERICSERV (1 << 3)
+#define ARES_NI_DGRAM (1 << 4)
+#define ARES_NI_TCP 0
+#define ARES_NI_UDP ARES_NI_DGRAM
+#define ARES_NI_SCTP (1 << 5)
+#define ARES_NI_DCCP (1 << 6)
+#define ARES_NI_NUMERICSCOPE (1 << 7)
+#define ARES_NI_LOOKUPHOST (1 << 8)
+#define ARES_NI_LOOKUPSERVICE (1 << 9)
+/* Reserved for future use */
+#define ARES_NI_IDN (1 << 10)
+#define ARES_NI_IDN_ALLOW_UNASSIGNED (1 << 11)
+#define ARES_NI_IDN_USE_STD3_ASCII_RULES (1 << 12)
+
+/* Addrinfo flag values */
+#define ARES_AI_CANONNAME (1 << 0)
+#define ARES_AI_NUMERICHOST (1 << 1)
+#define ARES_AI_PASSIVE (1 << 2)
+#define ARES_AI_NUMERICSERV (1 << 3)
+#define ARES_AI_V4MAPPED (1 << 4)
+#define ARES_AI_ALL (1 << 5)
+#define ARES_AI_ADDRCONFIG (1 << 6)
+/* Reserved for future use */
+#define ARES_AI_IDN (1 << 10)
+#define ARES_AI_IDN_ALLOW_UNASSIGNED (1 << 11)
+#define ARES_AI_IDN_USE_STD3_ASCII_RULES (1 << 12)
+#define ARES_AI_CANONIDN (1 << 13)
+
+#define ARES_AI_MASK (ARES_AI_CANONNAME|ARES_AI_NUMERICHOST|ARES_AI_PASSIVE| \
+ ARES_AI_NUMERICSERV|ARES_AI_V4MAPPED|ARES_AI_ALL| \
+ ARES_AI_ADDRCONFIG)
+#define ARES_GETSOCK_MAXNUM 16 /* ares_getsock() can return info about this
+ many sockets */
+#define ARES_GETSOCK_READABLE(bits,num) (bits & (1<< (num)))
+#define ARES_GETSOCK_WRITABLE(bits,num) (bits & (1 << ((num) + \
+ ARES_GETSOCK_MAXNUM)))
+
+/* c-ares library initialization flag values */
+#define ARES_LIB_INIT_NONE (0)
+#define ARES_LIB_INIT_WIN32 (1 << 0)
+#define ARES_LIB_INIT_ALL (ARES_LIB_INIT_WIN32)
+
+
+/*
+ * Typedef our socket type
+ */
+
+#ifndef ares_socket_typedef
+#ifdef WIN32
+typedef SOCKET ares_socket_t;
+#define ARES_SOCKET_BAD INVALID_SOCKET
+#else
+typedef int ares_socket_t;
+#define ARES_SOCKET_BAD -1
+#endif
+#define ares_socket_typedef
+#endif /* ares_socket_typedef */
+
+typedef void (*ares_sock_state_cb)(void *data,
+ ares_socket_t socket_fd,
+ int readable,
+ int writable);
+
+struct apattern;
+
+/* NOTE about the ares_options struct to users and developers.
+
+ This struct will remain looking like this. It will not be extended nor
+ shrunk in future releases, but all new options will be set by ares_set_*()
+ options instead of with the ares_init_options() function.
+
+ Eventually (in a galaxy far far away), all options will be settable by
+ ares_set_*() options and the ares_init_options() function will become
+ deprecated.
+
+ When new options are added to c-ares, they are not added to this
+ struct. And they are not "saved" with the ares_save_options() function but
+ instead we encourage the use of the ares_dup() function. Needless to say,
+ if you add config options to c-ares you need to make sure ares_dup()
+ duplicates this new option.
+
+ */
+struct ares_options {
+ int flags;
+ int timeout; /* in seconds or milliseconds, depending on options */
+ int tries;
+ int ndots;
+ unsigned short udp_port;
+ unsigned short tcp_port;
+ int socket_send_buffer_size;
+ int socket_receive_buffer_size;
+ struct in_addr *servers;
+ int nservers;
+ char **domains;
+ int ndomains;
+ char *lookups;
+ ares_sock_state_cb sock_state_cb;
+ void *sock_state_cb_data;
+ struct apattern *sortlist;
+ int nsort;
+};
+
+struct hostent;
+struct timeval;
+struct sockaddr;
+struct ares_channeldata;
+
+typedef struct ares_channeldata *ares_channel;
+
+typedef void (*ares_callback)(void *arg,
+ int status,
+ int timeouts,
+ unsigned char *abuf,
+ int alen);
+
+typedef void (*ares_host_callback)(void *arg,
+ int status,
+ int timeouts,
+ struct hostent *hostent);
+
+typedef void (*ares_nameinfo_callback)(void *arg,
+ int status,
+ int timeouts,
+ char *node,
+ char *service);
+
+typedef int (*ares_sock_create_callback)(ares_socket_t socket_fd,
+ int type,
+ void *data);
+
+CARES_EXTERN int ares_library_init(int flags);
+
+CARES_EXTERN void ares_library_cleanup(void);
+
+CARES_EXTERN const char *ares_version(int *version);
+
+CARES_EXTERN int ares_init(ares_channel *channelptr);
+
+CARES_EXTERN int ares_init_options(ares_channel *channelptr,
+ struct ares_options *options,
+ int optmask);
+
+CARES_EXTERN int ares_save_options(ares_channel channel,
+ struct ares_options *options,
+ int *optmask);
+
+CARES_EXTERN void ares_destroy_options(struct ares_options *options);
+
+CARES_EXTERN int ares_dup(ares_channel *dest,
+ ares_channel src);
+
+CARES_EXTERN void ares_destroy(ares_channel channel);
+
+CARES_EXTERN void ares_cancel(ares_channel channel);
+
+CARES_EXTERN void ares_set_socket_callback(ares_channel channel,
+ ares_sock_create_callback callback,
+ void *user_data);
+
+CARES_EXTERN void ares_send(ares_channel channel,
+ const unsigned char *qbuf,
+ int qlen,
+ ares_callback callback,
+ void *arg);
+
+CARES_EXTERN void ares_query(ares_channel channel,
+ const char *name,
+ int dnsclass,
+ int type,
+ ares_callback callback,
+ void *arg);
+
+CARES_EXTERN void ares_search(ares_channel channel,
+ const char *name,
+ int dnsclass,
+ int type,
+ ares_callback callback,
+ void *arg);
+
+CARES_EXTERN void ares_gethostbyname(ares_channel channel,
+ const char *name,
+ int family,
+ ares_host_callback callback,
+ void *arg);
+
+CARES_EXTERN int ares_gethostbyname_file(ares_channel channel,
+ const char *name,
+ int family,
+ struct hostent **host);
+
+CARES_EXTERN void ares_gethostbyaddr(ares_channel channel,
+ const void *addr,
+ int addrlen,
+ int family,
+ ares_host_callback callback,
+ void *arg);
+
+CARES_EXTERN void ares_getnameinfo(ares_channel channel,
+ const struct sockaddr *sa,
+ ares_socklen_t salen,
+ int flags,
+ ares_nameinfo_callback callback,
+ void *arg);
+
+CARES_EXTERN int ares_fds(ares_channel channel,
+ fd_set *read_fds,
+ fd_set *write_fds);
+
+CARES_EXTERN int ares_getsock(ares_channel channel,
+ int *socks,
+ int numsocks);
+
+CARES_EXTERN struct timeval *ares_timeout(ares_channel channel,
+ struct timeval *maxtv,
+ struct timeval *tv);
+
+CARES_EXTERN void ares_process(ares_channel channel,
+ fd_set *read_fds,
+ fd_set *write_fds);
+
+CARES_EXTERN void ares_process_fd(ares_channel channel,
+ ares_socket_t read_fd,
+ ares_socket_t write_fd);
+
+CARES_EXTERN int ares_mkquery(const char *name,
+ int dnsclass,
+ int type,
+ unsigned short id,
+ int rd,
+ unsigned char **buf,
+ int *buflen);
+
+CARES_EXTERN int ares_expand_name(const unsigned char *encoded,
+ const unsigned char *abuf,
+ int alen,
+ char **s,
+ long *enclen);
+
+CARES_EXTERN int ares_expand_string(const unsigned char *encoded,
+ const unsigned char *abuf,
+ int alen,
+ unsigned char **s,
+ long *enclen);
+
+/*
+ * NOTE: before c-ares 1.7.0 we would most often use the system in6_addr
+ * struct below when ares itself was built, but many apps would use this
+ * private version since the header checked a HAVE_* define for it. Starting
+ * with 1.7.0 we always declare and use our own to stop relying on the
+ * system's one.
+ */
+struct ares_in6_addr {
+ union {
+ unsigned char _S6_u8[16];
+ } _S6_un;
+};
+
+struct ares_addrttl {
+ struct in_addr ipaddr;
+ int ttl;
+};
+
+struct ares_addr6ttl {
+ struct ares_in6_addr ip6addr;
+ int ttl;
+};
+
+struct ares_srv_reply {
+ struct ares_srv_reply *next;
+ char *host;
+ unsigned short priority;
+ unsigned short weight;
+ unsigned short port;
+};
+
+struct ares_txt_reply {
+ struct ares_txt_reply *next;
+ unsigned char *txt;
+ size_t length; /* length excludes null termination */
+};
+
+/*
+** Parse the buffer, starting at *abuf and of length alen bytes, previously
+** obtained from an ares_search call. Put the results in *host, if nonnull.
+** Also, if addrttls is nonnull, put up to *naddrttls IPv4 addresses along with
+** their TTLs in that array, and set *naddrttls to the number of addresses
+** so written.
+*/
+
+CARES_EXTERN int ares_parse_a_reply(const unsigned char *abuf,
+ int alen,
+ struct hostent **host,
+ struct ares_addrttl *addrttls,
+ int *naddrttls);
+
+CARES_EXTERN int ares_parse_aaaa_reply(const unsigned char *abuf,
+ int alen,
+ struct hostent **host,
+ struct ares_addr6ttl *addrttls,
+ int *naddrttls);
+
+CARES_EXTERN int ares_parse_ptr_reply(const unsigned char *abuf,
+ int alen,
+ const void *addr,
+ int addrlen,
+ int family,
+ struct hostent **host);
+
+CARES_EXTERN int ares_parse_ns_reply(const unsigned char *abuf,
+ int alen,
+ struct hostent **host);
+
+CARES_EXTERN int ares_parse_srv_reply(const unsigned char* abuf,
+ int alen,
+ struct ares_srv_reply** srv_out);
+
+CARES_EXTERN int ares_parse_txt_reply(const unsigned char* abuf,
+ int alen,
+ struct ares_txt_reply** txt_out);
+
+CARES_EXTERN void ares_free_string(void *str);
+
+CARES_EXTERN void ares_free_hostent(struct hostent *host);
+
+CARES_EXTERN void ares_free_data(void *dataptr);
+
+CARES_EXTERN const char *ares_strerror(int code);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ARES__H */
diff --git a/3rdParty/CAres/src/ares__close_sockets.c b/3rdParty/CAres/src/ares__close_sockets.c
new file mode 100644
index 0000000..ef8910d
--- /dev/null
+++ b/3rdParty/CAres/src/ares__close_sockets.c
@@ -0,0 +1,67 @@
+/* $Id: ares__close_sockets.c,v 1.10 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#include <stdlib.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include "ares.h"
+#include "ares_private.h"
+
+void ares__close_sockets(ares_channel channel, struct server_state *server)
+{
+ struct send_request *sendreq;
+
+ /* Free all pending output buffers. */
+ while (server->qhead)
+ {
+ /* Advance server->qhead; pull out query as we go. */
+ sendreq = server->qhead;
+ server->qhead = sendreq->next;
+ if (sendreq->data_storage != NULL)
+ free(sendreq->data_storage);
+ free(sendreq);
+ }
+ server->qtail = NULL;
+
+ /* Reset any existing input buffer. */
+ if (server->tcp_buffer)
+ free(server->tcp_buffer);
+ server->tcp_buffer = NULL;
+ server->tcp_lenbuf_pos = 0;
+
+ /* Reset brokenness */
+ server->is_broken = 0;
+
+ /* Close the TCP and UDP sockets. */
+ if (server->tcp_socket != ARES_SOCKET_BAD)
+ {
+ SOCK_STATE_CALLBACK(channel, server->tcp_socket, 0, 0);
+ sclose(server->tcp_socket);
+ server->tcp_socket = ARES_SOCKET_BAD;
+ server->tcp_connection_generation = ++channel->tcp_connection_generation;
+ }
+ if (server->udp_socket != ARES_SOCKET_BAD)
+ {
+ SOCK_STATE_CALLBACK(channel, server->udp_socket, 0, 0);
+ sclose(server->udp_socket);
+ server->udp_socket = ARES_SOCKET_BAD;
+ }
+}
diff --git a/3rdParty/CAres/src/ares__get_hostent.c b/3rdParty/CAres/src/ares__get_hostent.c
new file mode 100644
index 0000000..335f763
--- /dev/null
+++ b/3rdParty/CAres/src/ares__get_hostent.c
@@ -0,0 +1,264 @@
+/* $Id: ares__get_hostent.c,v 1.24 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998, 2009 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_NETDB_H
+# include <netdb.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+# include <arpa/inet.h>
+#endif
+
+#include "ares.h"
+#include "inet_net_pton.h"
+#include "ares_private.h"
+
+int ares__get_hostent(FILE *fp, int family, struct hostent **host)
+{
+ char *line = NULL, *p, *q, **alias;
+ char *txtaddr, *txthost, *txtalias;
+ int status;
+ size_t addrlen, linesize, naliases;
+ struct ares_addr addr;
+ struct hostent *hostent = NULL;
+
+ *host = NULL; /* Assume failure */
+
+ /* Validate family */
+ switch (family) {
+ case AF_INET:
+ case AF_INET6:
+ case AF_UNSPEC:
+ break;
+ default:
+ return ARES_EBADFAMILY;
+ }
+
+ while ((status = ares__read_line(fp, &line, &linesize)) == ARES_SUCCESS)
+ {
+
+ /* Trim line comment. */
+ p = line;
+ while (*p && (*p != '#'))
+ p++;
+ *p = '\0';
+
+ /* Trim trailing whitespace. */
+ q = p - 1;
+ while ((q >= line) && ISSPACE(*q))
+ q--;
+ *++q = '\0';
+
+ /* Skip leading whitespace. */
+ p = line;
+ while (*p && ISSPACE(*p))
+ p++;
+ if (!*p)
+ /* Ignore line if empty. */
+ continue;
+
+ /* Pointer to start of IPv4 or IPv6 address part. */
+ txtaddr = p;
+
+ /* Advance past address part. */
+ while (*p && !ISSPACE(*p))
+ p++;
+ if (!*p)
+ /* Ignore line if reached end of line. */
+ continue;
+
+ /* Null terminate address part. */
+ *p = '\0';
+
+ /* Advance to host name */
+ p++;
+ while (*p && ISSPACE(*p))
+ p++;
+ if (!*p)
+ /* Ignore line if reached end of line. */
+ continue;
+
+ /* Pointer to start of host name. */
+ txthost = p;
+
+ /* Advance past host name. */
+ while (*p && !ISSPACE(*p))
+ p++;
+
+ /* Pointer to start of first alias. */
+ txtalias = NULL;
+ if (*p)
+ {
+ q = p + 1;
+ while (*q && ISSPACE(*q))
+ q++;
+ if (*q)
+ txtalias = q;
+ }
+
+ /* Null terminate host name. */
+ *p = '\0';
+
+ /* find out number of aliases. */
+ naliases = 0;
+ if (txtalias)
+ {
+ p = txtalias;
+ while (*p)
+ {
+ while (*p && !ISSPACE(*p))
+ p++;
+ while (*p && ISSPACE(*p))
+ p++;
+ naliases++;
+ }
+ }
+
+ /* Convert address string to network address for the requested family. */
+ addrlen = 0;
+ addr.family = AF_UNSPEC;
+ addr.addrV4.s_addr = INADDR_NONE;
+ if ((family == AF_INET) || (family == AF_UNSPEC))
+ {
+ addr.addrV4.s_addr = inet_addr(txtaddr);
+ if (addr.addrV4.s_addr != INADDR_NONE)
+ {
+ /* Actual network address family and length. */
+ addr.family = AF_INET;
+ addrlen = sizeof(struct in_addr);
+ }
+ }
+ if ((family == AF_INET6) || ((family == AF_UNSPEC) && (!addrlen)))
+ {
+ if (ares_inet_pton(AF_INET6, txtaddr, &addr.addrV6) > 0)
+ {
+ /* Actual network address family and length. */
+ addr.family = AF_INET6;
+ addrlen = sizeof(struct in6_addr);
+ }
+ }
+ if (!addrlen)
+ /* Ignore line if invalid address string for the requested family. */
+ continue;
+
+ /*
+ ** Actual address family possible values are AF_INET and AF_INET6 only.
+ */
+
+ /* Allocate memory for the hostent structure. */
+ hostent = malloc(sizeof(struct hostent));
+ if (!hostent)
+ break;
+
+ /* Initialize fields for out of memory condition. */
+ hostent->h_aliases = NULL;
+ hostent->h_addr_list = NULL;
+
+ /* Copy official host name. */
+ hostent->h_name = strdup(txthost);
+ if (!hostent->h_name)
+ break;
+
+ /* Copy network address. */
+ hostent->h_addr_list = malloc(2 * sizeof(char *));
+ if (!hostent->h_addr_list)
+ break;
+ hostent->h_addr_list[1] = NULL;
+ hostent->h_addr_list[0] = malloc(addrlen);
+ if (!hostent->h_addr_list[0])
+ break;
+ if (addr.family == AF_INET)
+ memcpy(hostent->h_addr_list[0], &addr.addrV4, sizeof(struct in_addr));
+ else
+ memcpy(hostent->h_addr_list[0], &addr.addrV6, sizeof(struct in6_addr));
+
+ /* Copy aliases. */
+ hostent->h_aliases = malloc((naliases + 1) * sizeof(char *));
+ if (!hostent->h_aliases)
+ break;
+ alias = hostent->h_aliases;
+ while (naliases)
+ *(alias + naliases--) = NULL;
+ *alias = NULL;
+ while (txtalias)
+ {
+ p = txtalias;
+ while (*p && !ISSPACE(*p))
+ p++;
+ q = p;
+ while (*q && ISSPACE(*q))
+ q++;
+ *p = '\0';
+ if ((*alias = strdup(txtalias)) == NULL)
+ break;
+ alias++;
+ txtalias = *q ? q : NULL;
+ }
+ if (txtalias)
+ /* Alias memory allocation failure. */
+ break;
+
+ /* Copy actual network address family and length. */
+ hostent->h_addrtype = addr.family;
+ hostent->h_length = (int)addrlen;
+
+ /* Free line buffer. */
+ free(line);
+
+ /* Return hostent successfully */
+ *host = hostent;
+ return ARES_SUCCESS;
+
+ }
+
+ /* If allocated, free line buffer. */
+ if (line)
+ free(line);
+
+ if (status == ARES_SUCCESS)
+ {
+ /* Memory allocation failure; clean up. */
+ if (hostent)
+ {
+ if (hostent->h_name)
+ free((char *) hostent->h_name);
+ if (hostent->h_aliases)
+ {
+ for (alias = hostent->h_aliases; *alias; alias++)
+ free(*alias);
+ free(hostent->h_aliases);
+ }
+ if (hostent->h_addr_list)
+ {
+ if (hostent->h_addr_list[0])
+ free(hostent->h_addr_list[0]);
+ free(hostent->h_addr_list);
+ }
+ free(hostent);
+ }
+ return ARES_ENOMEM;
+ }
+
+ return status;
+}
diff --git a/3rdParty/CAres/src/ares__read_line.c b/3rdParty/CAres/src/ares__read_line.c
new file mode 100644
index 0000000..270e0e3
--- /dev/null
+++ b/3rdParty/CAres/src/ares__read_line.c
@@ -0,0 +1,67 @@
+/* $Id: ares__read_line.c,v 1.14 2009-11-10 18:41:03 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "ares.h"
+#include "ares_private.h"
+
+/* This is an internal function. Its contract is to read a line from
+ * a file into a dynamically allocated buffer, zeroing the trailing
+ * newline if there is one. The calling routine may call
+ * ares__read_line multiple times with the same buf and bufsize
+ * pointers; *buf will be reallocated and *bufsize adjusted as
+ * appropriate. The initial value of *buf should be NULL. After the
+ * calling routine is done reading lines, it should free *buf.
+ */
+int ares__read_line(FILE *fp, char **buf, size_t *bufsize)
+{
+ char *newbuf;
+ size_t offset = 0;
+ size_t len;
+
+ if (*buf == NULL)
+ {
+ *buf = malloc(128);
+ if (!*buf)
+ return ARES_ENOMEM;
+ *bufsize = 128;
+ }
+
+ for (;;)
+ {
+ if (!fgets(*buf + offset, (int)(*bufsize - offset), fp))
+ return (offset != 0) ? 0 : (ferror(fp)) ? ARES_EFILE : ARES_EOF;
+ len = offset + strlen(*buf + offset);
+ if ((*buf)[len - 1] == '\n')
+ {
+ (*buf)[len - 1] = 0;
+ break;
+ }
+ offset = len;
+
+ /* Allocate more space. */
+ newbuf = realloc(*buf, *bufsize * 2);
+ if (!newbuf)
+ return ARES_ENOMEM;
+ *buf = newbuf;
+ *bufsize *= 2;
+ }
+ return ARES_SUCCESS;
+}
diff --git a/3rdParty/CAres/src/ares__timeval.c b/3rdParty/CAres/src/ares__timeval.c
new file mode 100644
index 0000000..2957350
--- /dev/null
+++ b/3rdParty/CAres/src/ares__timeval.c
@@ -0,0 +1,112 @@
+/* $Id: ares__timeval.c,v 1.6 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright (C) 2008 by Daniel Stenberg et al
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. M.I.T. makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+#include "ares.h"
+#include "ares_private.h"
+
+#if defined(WIN32) && !defined(MSDOS)
+
+struct timeval ares__tvnow(void)
+{
+ /*
+ ** GetTickCount() is available on _all_ Windows versions from W95 up
+ ** to nowadays. Returns milliseconds elapsed since last system boot,
+ ** increases monotonically and wraps once 49.7 days have elapsed.
+ */
+ struct timeval now;
+ DWORD milliseconds = GetTickCount();
+ now.tv_sec = milliseconds / 1000;
+ now.tv_usec = (milliseconds % 1000) * 1000;
+ return now;
+}
+
+#elif defined(HAVE_CLOCK_GETTIME_MONOTONIC)
+
+struct timeval ares__tvnow(void)
+{
+ /*
+ ** clock_gettime() is granted to be increased monotonically when the
+ ** monotonic clock is queried. Time starting point is unspecified, it
+ ** could be the system start-up time, the Epoch, or something else,
+ ** in any case the time starting point does not change once that the
+ ** system has started up.
+ */
+ struct timeval now;
+ struct timespec tsnow;
+ if(0 == clock_gettime(CLOCK_MONOTONIC, &tsnow)) {
+ now.tv_sec = tsnow.tv_sec;
+ now.tv_usec = tsnow.tv_nsec / 1000;
+ }
+ /*
+ ** Even when the configure process has truly detected monotonic clock
+ ** availability, it might happen that it is not actually available at
+ ** run-time. When this occurs simply fallback to other time source.
+ */
+#ifdef HAVE_GETTIMEOFDAY
+ else
+ (void)gettimeofday(&now, NULL);
+#else
+ else {
+ now.tv_sec = (long)time(NULL);
+ now.tv_usec = 0;
+ }
+#endif
+ return now;
+}
+
+#elif defined(HAVE_GETTIMEOFDAY)
+
+struct timeval ares__tvnow(void)
+{
+ /*
+ ** gettimeofday() is not granted to be increased monotonically, due to
+ ** clock drifting and external source time synchronization it can jump
+ ** forward or backward in time.
+ */
+ struct timeval now;
+ (void)gettimeofday(&now, NULL);
+ return now;
+}
+
+#else
+
+struct timeval ares__tvnow(void)
+{
+ /*
+ ** time() returns the value of time in seconds since the Epoch.
+ */
+ struct timeval now;
+ now.tv_sec = (long)time(NULL);
+ now.tv_usec = 0;
+ return now;
+}
+
+#endif
+
+#if 0 /* Not used */
+/*
+ * Make sure that the first argument is the more recent time, as otherwise
+ * we'll get a weird negative time-diff back...
+ *
+ * Returns: the time difference in number of milliseconds.
+ */
+long ares__tvdiff(struct timeval newer, struct timeval older)
+{
+ return (newer.tv_sec-older.tv_sec)*1000+
+ (newer.tv_usec-older.tv_usec)/1000;
+}
+#endif
+
diff --git a/3rdParty/CAres/src/ares_build.h b/3rdParty/CAres/src/ares_build.h
new file mode 100644
index 0000000..bbbef1b
--- /dev/null
+++ b/3rdParty/CAres/src/ares_build.h
@@ -0,0 +1,253 @@
+#ifndef __CARES_BUILD_H
+#define __CARES_BUILD_H
+
+/* $Id: ares_build.h.dist,v 1.9 2009-05-12 01:57:53 yangtse Exp $ */
+
+/* Copyright (C) 2009 by Daniel Stenberg et al
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. M.I.T. makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+/* ================================================================ */
+/* NOTES FOR CONFIGURE CAPABLE SYSTEMS */
+/* ================================================================ */
+
+/*
+ * NOTE 1:
+ * -------
+ *
+ * See file ares_build.h.in, run configure, and forget that this file
+ * exists it is only used for non-configure systems.
+ * But you can keep reading if you want ;-)
+ *
+ */
+
+/* ================================================================ */
+/* NOTES FOR NON-CONFIGURE SYSTEMS */
+/* ================================================================ */
+
+/*
+ * NOTE 1:
+ * -------
+ *
+ * Nothing in this file is intended to be modified or adjusted by the
+ * c-ares library user nor by the c-ares library builder.
+ *
+ * If you think that something actually needs to be changed, adjusted
+ * or fixed in this file, then, report it on the c-ares development
+ * mailing list: http://cool.haxx.se/mailman/listinfo/c-ares/
+ *
+ * Try to keep one section per platform, compiler and architecture,
+ * otherwise, if an existing section is reused for a different one and
+ * later on the original is adjusted, probably the piggybacking one can
+ * be adversely changed.
+ *
+ * In order to differentiate between platforms/compilers/architectures
+ * use only compiler built in predefined preprocessor symbols.
+ *
+ * This header file shall only export symbols which are 'cares' or 'CARES'
+ * prefixed, otherwise public name space would be polluted.
+ *
+ * NOTE 2:
+ * -------
+ *
+ * Right now you might be staring at file ares_build.h.dist or ares_build.h,
+ * this is due to the following reason: file ares_build.h.dist is renamed
+ * to ares_build.h when the c-ares source code distribution archive file is
+ * created.
+ *
+ * File ares_build.h.dist is not included in the distribution archive.
+ * File ares_build.h is not present in the CVS tree.
+ *
+ * The distributed ares_build.h file is only intended to be used on systems
+ * which can not run the also distributed configure script.
+ *
+ * On systems capable of running the configure script, the configure process
+ * will overwrite the distributed ares_build.h file with one that is suitable
+ * and specific to the library being configured and built, which is generated
+ * from the ares_build.h.in template file.
+ *
+ * If you check out from CVS on a non-configure platform, you must run the
+ * appropriate buildconf* script to set up ares_build.h and other local files.
+ *
+ */
+
+/* ================================================================ */
+/* DEFINITION OF THESE SYMBOLS SHALL NOT TAKE PLACE ANYWHERE ELSE */
+/* ================================================================ */
+
+#ifdef CARES_SIZEOF_LONG
+# error "CARES_SIZEOF_LONG shall not be defined except in ares_build.h"
+ Error Compilation_aborted_CARES_SIZEOF_LONG_already_defined
+#endif
+
+#ifdef CARES_TYPEOF_ARES_SOCKLEN_T
+# error "CARES_TYPEOF_ARES_SOCKLEN_T shall not be defined except in ares_build.h"
+ Error Compilation_aborted_CARES_TYPEOF_ARES_SOCKLEN_T_already_defined
+#endif
+
+#ifdef CARES_SIZEOF_ARES_SOCKLEN_T
+# error "CARES_SIZEOF_ARES_SOCKLEN_T shall not be defined except in ares_build.h"
+ Error Compilation_aborted_CARES_SIZEOF_ARES_SOCKLEN_T_already_defined
+#endif
+
+/* ================================================================ */
+/* EXTERNAL INTERFACE SETTINGS FOR NON-CONFIGURE SYSTEMS ONLY */
+/* ================================================================ */
+
+#if defined(__DJGPP__) || defined(__GO32__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__SALFORDC__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__BORLANDC__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__TURBOC__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__WATCOMC__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__POCC__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__LCC__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__SYMBIAN32__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T unsigned int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__MWERKS__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(_WIN32_WCE)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__MINGW32__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__VMS)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T unsigned int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+#elif defined(__OS400__)
+# if defined(__ILEC400__)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T socklen_t
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+# define CARES_PULL_SYS_TYPES_H 1
+# define CARES_PULL_SYS_SOCKET_H 1
+# endif
+
+#elif defined(__MVS__)
+# if defined(__IBMC__) || defined(__IBMCPP__)
+# if defined(_ILP32)
+# define CARES_SIZEOF_LONG 4
+# elif defined(_LP64)
+# define CARES_SIZEOF_LONG 8
+# endif
+# define CARES_TYPEOF_ARES_SOCKLEN_T socklen_t
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+# define CARES_PULL_SYS_TYPES_H 1
+# define CARES_PULL_SYS_SOCKET_H 1
+# endif
+
+#elif defined(__370__)
+# if defined(__IBMC__) || defined(__IBMCPP__)
+# if defined(_ILP32)
+# define CARES_SIZEOF_LONG 4
+# elif defined(_LP64)
+# define CARES_SIZEOF_LONG 8
+# endif
+# define CARES_TYPEOF_ARES_SOCKLEN_T socklen_t
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+# define CARES_PULL_SYS_TYPES_H 1
+# define CARES_PULL_SYS_SOCKET_H 1
+# endif
+
+#elif defined(TPF)
+# define CARES_SIZEOF_LONG 8
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+/* ===================================== */
+/* KEEP MSVC THE PENULTIMATE ENTRY */
+/* ===================================== */
+
+#elif defined(_MSC_VER)
+# define CARES_SIZEOF_LONG 4
+# define CARES_TYPEOF_ARES_SOCKLEN_T int
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+/* ===================================== */
+/* KEEP GENERIC GCC THE LAST ENTRY */
+/* ===================================== */
+
+#elif defined(__GNUC__)
+# if defined(__i386__) || defined(__ppc__)
+# define CARES_SIZEOF_LONG 4
+# elif defined(__x86_64__) || defined(__ppc64__)
+# define CARES_SIZEOF_LONG 8
+# endif
+# define CARES_TYPEOF_ARES_SOCKLEN_T socklen_t
+# define CARES_SIZEOF_ARES_SOCKLEN_T 4
+# define CARES_PULL_SYS_TYPES_H 1
+# define CARES_PULL_SYS_SOCKET_H 1
+
+#else
+# error "Unknown non-configure build target!"
+ Error Compilation_aborted_Unknown_non_configure_build_target
+#endif
+
+/* CARES_PULL_SYS_TYPES_H is defined above when inclusion of header file */
+/* sys/types.h is required here to properly make type definitions below. */
+#ifdef CARES_PULL_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+/* CARES_PULL_SYS_SOCKET_H is defined above when inclusion of header file */
+/* sys/socket.h is required here to properly make type definitions below. */
+#ifdef CARES_PULL_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+
+/* Data type definition of ares_socklen_t. */
+
+#ifdef CARES_TYPEOF_ARES_SOCKLEN_T
+ typedef CARES_TYPEOF_ARES_SOCKLEN_T ares_socklen_t;
+#endif
+
+#endif /* __CARES_BUILD_H */
diff --git a/3rdParty/CAres/src/ares_cancel.c b/3rdParty/CAres/src/ares_cancel.c
new file mode 100644
index 0000000..9478085
--- /dev/null
+++ b/3rdParty/CAres/src/ares_cancel.c
@@ -0,0 +1,64 @@
+/* $Id: ares_cancel.c,v 1.12 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright (C) 2004 by Daniel Stenberg et al
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. M.I.T. makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+#include <assert.h>
+#include <stdlib.h>
+#include "ares.h"
+#include "ares_private.h"
+
+/*
+ * ares_cancel() cancels all ongoing requests/resolves that might be going on
+ * on the given channel. It does NOT kill the channel, use ares_destroy() for
+ * that.
+ */
+void ares_cancel(ares_channel channel)
+{
+ struct query *query;
+ struct list_node* list_head;
+ struct list_node* list_node;
+ int i;
+
+ list_head = &(channel->all_queries);
+ for (list_node = list_head->next; list_node != list_head; )
+ {
+ query = list_node->data;
+ list_node = list_node->next; /* since we're deleting the query */
+ query->callback(query->arg, ARES_ECANCELLED, 0, NULL, 0);
+ ares__free_query(query);
+ }
+#ifndef NDEBUG
+ /* Freeing the query should remove it from all the lists in which it sits,
+ * so all query lists should be empty now.
+ */
+ assert(ares__is_list_empty(&(channel->all_queries)));
+ for (i = 0; i < ARES_QID_TABLE_SIZE; i++)
+ {
+ assert(ares__is_list_empty(&(channel->queries_by_qid[i])));
+ }
+ for (i = 0; i < ARES_TIMEOUT_TABLE_SIZE; i++)
+ {
+ assert(ares__is_list_empty(&(channel->queries_by_timeout[i])));
+ }
+#endif
+ if (!(channel->flags & ARES_FLAG_STAYOPEN))
+ {
+ if (channel->servers)
+ {
+ for (i = 0; i < channel->nservers; i++)
+ ares__close_sockets(channel, &channel->servers[i]);
+ }
+ }
+}
diff --git a/3rdParty/CAres/src/ares_config.h b/3rdParty/CAres/src/ares_config.h
new file mode 100644
index 0000000..2561090
--- /dev/null
+++ b/3rdParty/CAres/src/ares_config.h
@@ -0,0 +1,513 @@
+/* ares_config.h. Generated from ares_config.h.in by configure. */
+/* ares_config.h.in. Generated from configure.ac by autoheader. */
+
+/* Define if building universal (internal helper macro) */
+/* #undef AC_APPLE_UNIVERSAL_BUILD */
+
+/* define this if ares is built for a big endian system */
+/* #undef ARES_BIG_ENDIAN */
+
+/* when building as static part of libcurl */
+/* #undef BUILDING_LIBCURL */
+
+/* when building c-ares library */
+/* #undef CARES_BUILDING_LIBRARY */
+
+/* when not building a shared library */
+/* #undef CARES_STATICLIB */
+
+/* Define to 1 to enable hiding of library internal symbols. */
+#define CARES_SYMBOL_HIDING 1
+
+/* Definition to make a library symbol externally visible. */
+#define CARES_SYMBOL_SCOPE_EXTERN __attribute__ ((visibility ("default")))
+
+/* if a /etc/inet dir is being used */
+/* #undef ETC_INET */
+
+/* Define to the type qualifier of arg 1 for getnameinfo. */
+#define GETNAMEINFO_QUAL_ARG1 const
+
+/* Define to the type of arg 1 for getnameinfo. */
+#define GETNAMEINFO_TYPE_ARG1 struct sockaddr *
+
+/* Define to the type of arg 2 for getnameinfo. */
+#define GETNAMEINFO_TYPE_ARG2 socklen_t
+
+/* Define to the type of args 4 and 6 for getnameinfo. */
+#define GETNAMEINFO_TYPE_ARG46 size_t
+
+/* Define to the type of arg 7 for getnameinfo. */
+#define GETNAMEINFO_TYPE_ARG7 unsigned int
+
+/* Specifies the number of arguments to getservbyport_r */
+#define GETSERVBYPORT_R_ARGS 6
+
+/* Specifies the size of the buffer to pass to getservbyport_r */
+#define GETSERVBYPORT_R_BUFSIZE 4096
+
+/* Define to 1 if you have AF_INET6. */
+#define HAVE_AF_INET6 1
+
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#define HAVE_ARPA_INET_H 1
+
+/* Define to 1 if you have the <arpa/nameser_compat.h> header file. */
+#define HAVE_ARPA_NAMESER_COMPAT_H 1
+
+/* Define to 1 if you have the <arpa/nameser.h> header file. */
+#define HAVE_ARPA_NAMESER_H 1
+
+/* Define to 1 if you have the <assert.h> header file. */
+#define HAVE_ASSERT_H 1
+
+/* Define to 1 if you have the `bitncmp' function. */
+/* #undef HAVE_BITNCMP */
+
+/* Define to 1 if bool is an available type. */
+#define HAVE_BOOL_T 1
+
+/* Define to 1 if you have the clock_gettime function and monotonic timer. */
+#define HAVE_CLOCK_GETTIME_MONOTONIC 1
+
+/* Define to 1 if you have the closesocket function. */
+/* #undef HAVE_CLOSESOCKET */
+
+/* Define to 1 if you have the CloseSocket camel case function. */
+/* #undef HAVE_CLOSESOCKET_CAMEL */
+
+/* Define to 1 if you have the connect function. */
+#define HAVE_CONNECT 1
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#define HAVE_DLFCN_H 1
+
+/* Define to 1 if you have the <errno.h> header file. */
+#define HAVE_ERRNO_H 1
+
+/* Define to 1 if you have the fcntl function. */
+#define HAVE_FCNTL 1
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#define HAVE_FCNTL_H 1
+
+/* Define to 1 if you have a working fcntl O_NONBLOCK function. */
+#define HAVE_FCNTL_O_NONBLOCK 1
+
+/* Define to 1 if you have the freeaddrinfo function. */
+#define HAVE_FREEADDRINFO 1
+
+/* Define to 1 if you have a working getaddrinfo function. */
+#define HAVE_GETADDRINFO 1
+
+/* Define to 1 if the getaddrinfo function is threadsafe. */
+#define HAVE_GETADDRINFO_THREADSAFE 1
+
+/* Define to 1 if you have the gethostbyaddr function. */
+#define HAVE_GETHOSTBYADDR 1
+
+/* Define to 1 if you have the gethostbyname function. */
+#define HAVE_GETHOSTBYNAME 1
+
+/* Define to 1 if you have the gethostname function. */
+#define HAVE_GETHOSTNAME 1
+
+/* Define to 1 if you have the getnameinfo function. */
+#define HAVE_GETNAMEINFO 1
+
+/* Define to 1 if you have the getservbyport_r function. */
+#define HAVE_GETSERVBYPORT_R 1
+
+/* Define to 1 if you have the `gettimeofday' function. */
+#define HAVE_GETTIMEOFDAY 1
+
+/* Define to 1 if you have the `if_indextoname' function. */
+#define HAVE_IF_INDEXTONAME 1
+
+/* Define to 1 if you have the `inet_net_pton' function. */
+/* #undef HAVE_INET_NET_PTON */
+
+/* Define to 1 if inet_net_pton supports IPv6. */
+/* #undef HAVE_INET_NET_PTON_IPV6 */
+
+/* Define to 1 if you have a IPv6 capable working inet_ntop function. */
+#define HAVE_INET_NTOP 1
+
+/* Define to 1 if you have a IPv6 capable working inet_pton function. */
+#define HAVE_INET_PTON 1
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the ioctl function. */
+#define HAVE_IOCTL 1
+
+/* Define to 1 if you have the ioctlsocket function. */
+/* #undef HAVE_IOCTLSOCKET */
+
+/* Define to 1 if you have the IoctlSocket camel case function. */
+/* #undef HAVE_IOCTLSOCKET_CAMEL */
+
+/* Define to 1 if you have a working IoctlSocket camel case FIONBIO function.
+ */
+/* #undef HAVE_IOCTLSOCKET_CAMEL_FIONBIO */
+
+/* Define to 1 if you have a working ioctlsocket FIONBIO function. */
+/* #undef HAVE_IOCTLSOCKET_FIONBIO */
+
+/* Define to 1 if you have a working ioctl FIONBIO function. */
+#define HAVE_IOCTL_FIONBIO 1
+
+/* Define to 1 if you have a working ioctl SIOCGIFADDR function. */
+#define HAVE_IOCTL_SIOCGIFADDR 1
+
+/* Define to 1 if you have the `resolve' library (-lresolve). */
+/* #undef HAVE_LIBRESOLVE */
+
+/* Define to 1 if you have the <limits.h> header file. */
+#define HAVE_LIMITS_H 1
+
+/* if your compiler supports LL */
+#define HAVE_LL 1
+
+/* Define to 1 if the compiler supports the 'long long' data type. */
+#define HAVE_LONGLONG 1
+
+/* Define to 1 if you have the malloc.h header file. */
+#define HAVE_MALLOC_H 1
+
+/* Define to 1 if you have the memory.h header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the MSG_NOSIGNAL flag. */
+#define HAVE_MSG_NOSIGNAL 1
+
+/* Define to 1 if you have the <netdb.h> header file. */
+#define HAVE_NETDB_H 1
+
+/* Define to 1 if you have the <netinet/in.h> header file. */
+#define HAVE_NETINET_IN_H 1
+
+/* Define to 1 if you have the <netinet/tcp.h> header file. */
+#define HAVE_NETINET_TCP_H 1
+
+/* Define to 1 if you have the <net/if.h> header file. */
+#define HAVE_NET_IF_H 1
+
+/* Define to 1 if you have PF_INET6. */
+#define HAVE_PF_INET6 1
+
+/* Define to 1 if you have the recv function. */
+#define HAVE_RECV 1
+
+/* Define to 1 if you have the recvfrom function. */
+#define HAVE_RECVFROM 1
+
+/* Define to 1 if you have the send function. */
+#define HAVE_SEND 1
+
+/* Define to 1 if you have the setsockopt function. */
+#define HAVE_SETSOCKOPT 1
+
+/* Define to 1 if you have a working setsockopt SO_NONBLOCK function. */
+/* #undef HAVE_SETSOCKOPT_SO_NONBLOCK */
+
+/* Define to 1 if you have the <signal.h> header file. */
+#define HAVE_SIGNAL_H 1
+
+/* Define to 1 if sig_atomic_t is an available typedef. */
+#define HAVE_SIG_ATOMIC_T 1
+
+/* Define to 1 if sig_atomic_t is already defined as volatile. */
+/* #undef HAVE_SIG_ATOMIC_T_VOLATILE */
+
+/* Define to 1 if your struct sockaddr_in6 has sin6_scope_id. */
+#define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
+
+/* Define to 1 if you have the socket function. */
+#define HAVE_SOCKET 1
+
+/* Define to 1 if you have the <socket.h> header file. */
+/* #undef HAVE_SOCKET_H */
+
+/* Define to 1 if you have the <stdbool.h> header file. */
+#define HAVE_STDBOOL_H 1
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the strcasecmp function. */
+#define HAVE_STRCASECMP 1
+
+/* Define to 1 if you have the strcmpi function. */
+/* #undef HAVE_STRCMPI */
+
+/* Define to 1 if you have the strdup function. */
+#define HAVE_STRDUP 1
+
+/* Define to 1 if you have the stricmp function. */
+/* #undef HAVE_STRICMP */
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the strncasecmp function. */
+#define HAVE_STRNCASECMP 1
+
+/* Define to 1 if you have the strncmpi function. */
+/* #undef HAVE_STRNCMPI */
+
+/* Define to 1 if you have the strnicmp function. */
+/* #undef HAVE_STRNICMP */
+
+/* Define to 1 if you have the <stropts.h> header file. */
+#define HAVE_STROPTS_H 1
+
+/* Define to 1 if you have struct addrinfo. */
+#define HAVE_STRUCT_ADDRINFO 1
+
+/* Define to 1 if you have struct in6_addr. */
+#define HAVE_STRUCT_IN6_ADDR 1
+
+/* Define to 1 if you have struct sockaddr_in6. */
+#define HAVE_STRUCT_SOCKADDR_IN6 1
+
+/* if struct sockaddr_storage is defined */
+#define HAVE_STRUCT_SOCKADDR_STORAGE 1
+
+/* Define to 1 if you have the timeval struct. */
+#define HAVE_STRUCT_TIMEVAL 1
+
+/* Define to 1 if you have the <sys/ioctl.h> header file. */
+#define HAVE_SYS_IOCTL_H 1
+
+/* Define to 1 if you have the <sys/param.h> header file. */
+#define HAVE_SYS_PARAM_H 1
+
+/* Define to 1 if you have the <sys/select.h> header file. */
+#define HAVE_SYS_SELECT_H 1
+
+/* Define to 1 if you have the <sys/socket.h> header file. */
+#define HAVE_SYS_SOCKET_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#define HAVE_SYS_TIME_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the <sys/uio.h> header file. */
+#define HAVE_SYS_UIO_H 1
+
+/* Define to 1 if you have the <time.h> header file. */
+#define HAVE_TIME_H 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* Define to 1 if you have the windows.h header file. */
+/* #undef HAVE_WINDOWS_H */
+
+/* Define to 1 if you have the winsock2.h header file. */
+/* #undef HAVE_WINSOCK2_H */
+
+/* Define to 1 if you have the winsock.h header file. */
+/* #undef HAVE_WINSOCK_H */
+
+/* Define to 1 if you have the writev function. */
+#define HAVE_WRITEV 1
+
+/* Define to 1 if you have the ws2tcpip.h header file. */
+/* #undef HAVE_WS2TCPIP_H */
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+ */
+#define LT_OBJDIR ".libs/"
+
+/* Define to 1 if you are building a native Windows target. */
+/* #undef NATIVE_WINDOWS */
+
+/* Define to 1 if you need the malloc.h header file even with stdlib.h */
+/* #undef NEED_MALLOC_H */
+
+/* Define to 1 if you need the memory.h header file even with stdlib.h */
+/* #undef NEED_MEMORY_H */
+
+/* Define to 1 if _REENTRANT preprocessor symbol must be defined. */
+/* #undef NEED_REENTRANT */
+
+/* Define to 1 if _THREAD_SAFE preprocessor symbol must be defined. */
+/* #undef NEED_THREAD_SAFE */
+
+/* Define to 1 if your C compiler doesn't accept -c and -o together. */
+/* #undef NO_MINUS_C_MINUS_O */
+
+/* cpu-machine-OS */
+#define OS "i686-pc-linux-gnu"
+
+/* Name of package */
+#define PACKAGE "c-ares"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "c-ares mailing list => http://cool.haxx.se/mailman/listinfo/c-ares"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "c-ares"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "c-ares 1.7.0"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "c-ares"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "1.7.0"
+
+/* a suitable file/device to read random data from */
+#define RANDOM_FILE "/dev/urandom"
+
+/* Define to the type of arg 1 for recvfrom. */
+#define RECVFROM_TYPE_ARG1 int
+
+/* Define to the type pointed by arg 2 for recvfrom. */
+#define RECVFROM_TYPE_ARG2 void
+
+/* Define to 1 if the type pointed by arg 2 for recvfrom is void. */
+#define RECVFROM_TYPE_ARG2_IS_VOID 1
+
+/* Define to the type of arg 3 for recvfrom. */
+#define RECVFROM_TYPE_ARG3 size_t
+
+/* Define to the type of arg 4 for recvfrom. */
+#define RECVFROM_TYPE_ARG4 int
+
+/* Define to the type pointed by arg 5 for recvfrom. */
+#define RECVFROM_TYPE_ARG5 struct sockaddr
+
+/* Define to 1 if the type pointed by arg 5 for recvfrom is void. */
+/* #undef RECVFROM_TYPE_ARG5_IS_VOID */
+
+/* Define to the type pointed by arg 6 for recvfrom. */
+#define RECVFROM_TYPE_ARG6 socklen_t
+
+/* Define to 1 if the type pointed by arg 6 for recvfrom is void. */
+/* #undef RECVFROM_TYPE_ARG6_IS_VOID */
+
+/* Define to the function return type for recvfrom. */
+#define RECVFROM_TYPE_RETV int
+
+/* Define to the type of arg 1 for recv. */
+#define RECV_TYPE_ARG1 int
+
+/* Define to the type of arg 2 for recv. */
+#define RECV_TYPE_ARG2 void *
+
+/* Define to the type of arg 3 for recv. */
+#define RECV_TYPE_ARG3 size_t
+
+/* Define to the type of arg 4 for recv. */
+#define RECV_TYPE_ARG4 int
+
+/* Define to the function return type for recv. */
+#define RECV_TYPE_RETV int
+
+/* Define as the return type of signal handlers (`int' or `void'). */
+#define RETSIGTYPE void
+
+/* Define to the type qualifier of arg 2 for send. */
+#define SEND_QUAL_ARG2 const
+
+/* Define to the type of arg 1 for send. */
+#define SEND_TYPE_ARG1 int
+
+/* Define to the type of arg 2 for send. */
+#define SEND_TYPE_ARG2 void *
+
+/* Define to the type of arg 3 for send. */
+#define SEND_TYPE_ARG3 size_t
+
+/* Define to the type of arg 4 for send. */
+#define SEND_TYPE_ARG4 int
+
+/* Define to the function return type for send. */
+#define SEND_TYPE_RETV int
+
+/* The size of `int', as computed by sizeof. */
+#define SIZEOF_INT 4
+
+/* The size of `long', as computed by sizeof. */
+#define SIZEOF_LONG 4
+
+/* The size of `size_t', as computed by sizeof. */
+#define SIZEOF_SIZE_T 4
+
+/* The size of `struct in6_addr', as computed by sizeof. */
+#define SIZEOF_STRUCT_IN6_ADDR 16
+
+/* The size of `struct in_addr', as computed by sizeof. */
+#define SIZEOF_STRUCT_IN_ADDR 4
+
+/* The size of `time_t', as computed by sizeof. */
+#define SIZEOF_TIME_T 4
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
+#define TIME_WITH_SYS_TIME 1
+
+/* Define to disable non-blocking sockets. */
+/* #undef USE_BLOCKING_SOCKETS */
+
+/* Version number of package */
+#define VERSION "1.7.0"
+
+/* Define to avoid automatic inclusion of winsock.h */
+/* #undef WIN32_LEAN_AND_MEAN */
+
+/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
+ significant byte first (like Motorola and SPARC, unlike Intel). */
+#if defined AC_APPLE_UNIVERSAL_BUILD
+# if defined __BIG_ENDIAN__
+# define WORDS_BIGENDIAN 1
+# endif
+#else
+# ifndef WORDS_BIGENDIAN
+/* # undef WORDS_BIGENDIAN */
+# endif
+#endif
+
+/* Define to 1 if OS is AIX. */
+#ifndef _ALL_SOURCE
+/* # undef _ALL_SOURCE */
+#endif
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+#define _FILE_OFFSET_BITS 64
+
+/* Define for large files, on AIX-style hosts. */
+/* #undef _LARGE_FILES */
+
+/* Define to empty if `const' does not conform to ANSI C. */
+/* #undef const */
+
+/* Type to use in place of in_addr_t when system does not provide it. */
+/* #undef in_addr_t */
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+/* #undef size_t */
+
+/* the signed version of size_t */
+/* #undef ssize_t */
diff --git a/3rdParty/CAres/src/ares_data.c b/3rdParty/CAres/src/ares_data.c
new file mode 100644
index 0000000..1ad66a6
--- /dev/null
+++ b/3rdParty/CAres/src/ares_data.c
@@ -0,0 +1,143 @@
+/* $Id: ares_data.c,v 1.2 2009-11-20 09:06:33 yangtse Exp $ */
+
+/* Copyright (C) 2009 by Daniel Stenberg
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+
+#include "ares_setup.h"
+
+#include <stddef.h>
+
+#include "ares.h"
+#include "ares_data.h"
+#include "ares_private.h"
+
+
+/*
+** ares_free_data() - c-ares external API function.
+**
+** This function must be used by the application to free data memory that
+** has been internally allocated by some c-ares function and for which a
+** pointer has already been returned to the calling application. The list
+** of c-ares functions returning pointers that must be free'ed using this
+** function is:
+**
+** ares_parse_srv_reply()
+** ares_parse_txt_reply()
+*/
+
+void ares_free_data(void *dataptr)
+{
+ struct ares_data *ptr;
+
+ if (!dataptr)
+ return;
+
+ ptr = (void *)((char *)dataptr - offsetof(struct ares_data, data));
+
+ if (ptr->mark != ARES_DATATYPE_MARK)
+ return;
+
+ switch (ptr->type)
+ {
+ case ARES_DATATYPE_SRV_REPLY:
+
+ if (ptr->data.srv_reply.next)
+ ares_free_data(ptr->data.srv_reply.next);
+ if (ptr->data.srv_reply.host)
+ free(ptr->data.srv_reply.host);
+ break;
+
+ case ARES_DATATYPE_TXT_REPLY:
+
+ if (ptr->data.txt_reply.next)
+ ares_free_data(ptr->data.txt_reply.next);
+ if (ptr->data.txt_reply.txt)
+ free(ptr->data.txt_reply.txt);
+ break;
+
+ default:
+ return;
+ }
+
+ free(ptr);
+}
+
+
+/*
+** ares_malloc_data() - c-ares internal helper function.
+**
+** This function allocates memory for a c-ares private ares_data struct
+** for the specified ares_datatype, initializes c-ares private fields
+** and zero initializes those which later might be used from the public
+** API. It returns an interior pointer which can be passed by c-ares
+** functions to the calling application, and that must be free'ed using
+** c-ares external API function ares_free_data().
+*/
+
+void *ares_malloc_data(ares_datatype type)
+{
+ struct ares_data *ptr;
+
+ ptr = malloc(sizeof(struct ares_data));
+ if (!ptr)
+ return NULL;
+
+ switch (type)
+ {
+ case ARES_DATATYPE_SRV_REPLY:
+ ptr->data.srv_reply.next = NULL;
+ ptr->data.srv_reply.host = NULL;
+ ptr->data.srv_reply.priority = 0;
+ ptr->data.srv_reply.weight = 0;
+ ptr->data.srv_reply.port = 0;
+ break;
+
+ case ARES_DATATYPE_TXT_REPLY:
+ ptr->data.txt_reply.next = NULL;
+ ptr->data.txt_reply.txt = NULL;
+ ptr->data.txt_reply.length = 0;
+ break;
+
+ default:
+ free(ptr);
+ return NULL;
+ }
+
+ ptr->mark = ARES_DATATYPE_MARK;
+ ptr->type = type;
+
+ return &ptr->data;
+}
+
+
+/*
+** ares_get_datatype() - c-ares internal helper function.
+**
+** This function returns the ares_datatype of the data stored in a
+** private ares_data struct when given the public API pointer.
+*/
+
+ares_datatype ares_get_datatype(void * dataptr)
+{
+ struct ares_data *ptr;
+
+ ptr = (void *)((char *)dataptr - offsetof(struct ares_data, data));
+
+ if (ptr->mark == ARES_DATATYPE_MARK)
+ return ptr->type;
+
+ return ARES_DATATYPE_UNKNOWN;
+}
diff --git a/3rdParty/CAres/src/ares_data.h b/3rdParty/CAres/src/ares_data.h
new file mode 100644
index 0000000..18794e3
--- /dev/null
+++ b/3rdParty/CAres/src/ares_data.h
@@ -0,0 +1,62 @@
+/* $Id: ares_data.h,v 1.2 2009-11-23 12:03:33 yangtse Exp $ */
+
+/* Copyright (C) 2009 by Daniel Stenberg
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+typedef enum {
+ ARES_DATATYPE_UNKNOWN = 1, /* unknown data type - introduced in 1.7.0 */
+ ARES_DATATYPE_SRV_REPLY, /* struct ares_srv_reply - introduced in 1.7.0 */
+ ARES_DATATYPE_TXT_REPLY, /* struct ares_txt_reply - introduced in 1.7.0 */
+#if 0
+ ARES_DATATYPE_ADDR6TTL, /* struct ares_addrttl */
+ ARES_DATATYPE_ADDRTTL, /* struct ares_addr6ttl */
+ ARES_DATATYPE_HOSTENT, /* struct hostent */
+ ARES_DATATYPE_OPTIONS, /* struct ares_options */
+#endif
+ ARES_DATATYPE_LAST /* not used - introduced in 1.7.0 */
+} ares_datatype;
+
+#define ARES_DATATYPE_MARK 0xbead
+
+/*
+ * ares_data struct definition is internal to c-ares and shall not
+ * be exposed by the public API in order to allow future changes
+ * and extensions to it without breaking ABI. This will be used
+ * internally by c-ares as the container of multiple types of data
+ * dynamically allocated for which a reference will be returned
+ * to the calling application.
+ *
+ * c-ares API functions returning a pointer to c-ares internally
+ * allocated data will actually be returning an interior pointer
+ * into this ares_data struct.
+ *
+ * All this is 'invisible' to the calling application, the only
+ * requirement is that this kind of data must be free'ed by the
+ * calling application using ares_free_data() with the pointer
+ * it has received from a previous c-ares function call.
+ */
+
+struct ares_data {
+ ares_datatype type; /* Actual data type identifier. */
+ unsigned int mark; /* Private ares_data signature. */
+ union {
+ struct ares_txt_reply txt_reply;
+ struct ares_srv_reply srv_reply;
+ } data;
+};
+
+void *ares_malloc_data(ares_datatype type);
+
+ares_datatype ares_get_datatype(void * dataptr);
diff --git a/3rdParty/CAres/src/ares_destroy.c b/3rdParty/CAres/src/ares_destroy.c
new file mode 100644
index 0000000..0044a71
--- /dev/null
+++ b/3rdParty/CAres/src/ares_destroy.c
@@ -0,0 +1,93 @@
+/* $Id: ares_destroy.c,v 1.14 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+#include <assert.h>
+#include <stdlib.h>
+#include "ares.h"
+#include "ares_private.h"
+
+void ares_destroy_options(struct ares_options *options)
+{
+ int i;
+
+ free(options->servers);
+ for (i = 0; i < options->ndomains; i++)
+ free(options->domains[i]);
+ free(options->domains);
+ if(options->sortlist)
+ free(options->sortlist);
+ free(options->lookups);
+}
+
+void ares_destroy(ares_channel channel)
+{
+ int i;
+ struct query *query;
+ struct list_node* list_head;
+ struct list_node* list_node;
+
+ if (!channel)
+ return;
+
+ list_head = &(channel->all_queries);
+ for (list_node = list_head->next; list_node != list_head; )
+ {
+ query = list_node->data;
+ list_node = list_node->next; /* since we're deleting the query */
+ query->callback(query->arg, ARES_EDESTRUCTION, 0, NULL, 0);
+ ares__free_query(query);
+ }
+#ifndef NDEBUG
+ /* Freeing the query should remove it from all the lists in which it sits,
+ * so all query lists should be empty now.
+ */
+ assert(ares__is_list_empty(&(channel->all_queries)));
+ for (i = 0; i < ARES_QID_TABLE_SIZE; i++)
+ {
+ assert(ares__is_list_empty(&(channel->queries_by_qid[i])));
+ }
+ for (i = 0; i < ARES_TIMEOUT_TABLE_SIZE; i++)
+ {
+ assert(ares__is_list_empty(&(channel->queries_by_timeout[i])));
+ }
+#endif
+
+ if (channel->servers) {
+ for (i = 0; i < channel->nservers; i++)
+ {
+ struct server_state *server = &channel->servers[i];
+ ares__close_sockets(channel, server);
+ assert(ares__is_list_empty(&(server->queries_to_server)));
+ }
+ free(channel->servers);
+ }
+
+ if (channel->domains) {
+ for (i = 0; i < channel->ndomains; i++)
+ free(channel->domains[i]);
+ free(channel->domains);
+ }
+
+ if(channel->sortlist)
+ free(channel->sortlist);
+
+ if (channel->lookups)
+ free(channel->lookups);
+
+ free(channel);
+}
diff --git a/3rdParty/CAres/src/ares_dns.h b/3rdParty/CAres/src/ares_dns.h
new file mode 100644
index 0000000..c0a9dda
--- /dev/null
+++ b/3rdParty/CAres/src/ares_dns.h
@@ -0,0 +1,91 @@
+/* $Id: ares_dns.h,v 1.8 2007-02-16 14:22:08 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#ifndef ARES__DNS_H
+#define ARES__DNS_H
+
+#define DNS__16BIT(p) (((p)[0] << 8) | (p)[1])
+#define DNS__32BIT(p) (((p)[0] << 24) | ((p)[1] << 16) | \
+ ((p)[2] << 8) | (p)[3])
+
+#define DNS__SET16BIT(p, v) (((p)[0] = (unsigned char)(((v) >> 8) & 0xff)), \
+ ((p)[1] = (unsigned char)((v) & 0xff)))
+#define DNS__SET32BIT(p, v) (((p)[0] = (unsigned char)(((v) >> 24) & 0xff)), \
+ ((p)[1] = (unsigned char)(((v) >> 16) & 0xff)), \
+ ((p)[2] = (unsigned char)(((v) >> 8) & 0xff)), \
+ ((p)[3] = (unsigned char)((v) & 0xff)))
+
+#if 0
+/* we cannot use this approach on systems where we can't access 16/32 bit
+ data on un-aligned addresses */
+#define DNS__16BIT(p) ntohs(*(unsigned short*)(p))
+#define DNS__32BIT(p) ntohl(*(unsigned long*)(p))
+#define DNS__SET16BIT(p, v) *(unsigned short*)(p) = htons(v)
+#define DNS__SET32BIT(p, v) *(unsigned long*)(p) = htonl(v)
+#endif
+
+/* Macros for parsing a DNS header */
+#define DNS_HEADER_QID(h) DNS__16BIT(h)
+#define DNS_HEADER_QR(h) (((h)[2] >> 7) & 0x1)
+#define DNS_HEADER_OPCODE(h) (((h)[2] >> 3) & 0xf)
+#define DNS_HEADER_AA(h) (((h)[2] >> 2) & 0x1)
+#define DNS_HEADER_TC(h) (((h)[2] >> 1) & 0x1)
+#define DNS_HEADER_RD(h) ((h)[2] & 0x1)
+#define DNS_HEADER_RA(h) (((h)[3] >> 7) & 0x1)
+#define DNS_HEADER_Z(h) (((h)[3] >> 4) & 0x7)
+#define DNS_HEADER_RCODE(h) ((h)[3] & 0xf)
+#define DNS_HEADER_QDCOUNT(h) DNS__16BIT((h) + 4)
+#define DNS_HEADER_ANCOUNT(h) DNS__16BIT((h) + 6)
+#define DNS_HEADER_NSCOUNT(h) DNS__16BIT((h) + 8)
+#define DNS_HEADER_ARCOUNT(h) DNS__16BIT((h) + 10)
+
+/* Macros for constructing a DNS header */
+#define DNS_HEADER_SET_QID(h, v) DNS__SET16BIT(h, v)
+#define DNS_HEADER_SET_QR(h, v) ((h)[2] |= (unsigned char)(((v) & 0x1) << 7))
+#define DNS_HEADER_SET_OPCODE(h, v) ((h)[2] |= (unsigned char)(((v) & 0xf) << 3))
+#define DNS_HEADER_SET_AA(h, v) ((h)[2] |= (unsigned char)(((v) & 0x1) << 2))
+#define DNS_HEADER_SET_TC(h, v) ((h)[2] |= (unsigned char)(((v) & 0x1) << 1))
+#define DNS_HEADER_SET_RD(h, v) ((h)[2] |= (unsigned char)((v) & 0x1))
+#define DNS_HEADER_SET_RA(h, v) ((h)[3] |= (unsigned char)(((v) & 0x1) << 7))
+#define DNS_HEADER_SET_Z(h, v) ((h)[3] |= (unsigned char)(((v) & 0x7) << 4))
+#define DNS_HEADER_SET_RCODE(h, v) ((h)[3] |= (unsigned char)((v) & 0xf))
+#define DNS_HEADER_SET_QDCOUNT(h, v) DNS__SET16BIT((h) + 4, v)
+#define DNS_HEADER_SET_ANCOUNT(h, v) DNS__SET16BIT((h) + 6, v)
+#define DNS_HEADER_SET_NSCOUNT(h, v) DNS__SET16BIT((h) + 8, v)
+#define DNS_HEADER_SET_ARCOUNT(h, v) DNS__SET16BIT((h) + 10, v)
+
+/* Macros for parsing the fixed part of a DNS question */
+#define DNS_QUESTION_TYPE(q) DNS__16BIT(q)
+#define DNS_QUESTION_CLASS(q) DNS__16BIT((q) + 2)
+
+/* Macros for constructing the fixed part of a DNS question */
+#define DNS_QUESTION_SET_TYPE(q, v) DNS__SET16BIT(q, v)
+#define DNS_QUESTION_SET_CLASS(q, v) DNS__SET16BIT((q) + 2, v)
+
+/* Macros for parsing the fixed part of a DNS resource record */
+#define DNS_RR_TYPE(r) DNS__16BIT(r)
+#define DNS_RR_CLASS(r) DNS__16BIT((r) + 2)
+#define DNS_RR_TTL(r) DNS__32BIT((r) + 4)
+#define DNS_RR_LEN(r) DNS__16BIT((r) + 8)
+
+/* Macros for constructing the fixed part of a DNS resource record */
+#define DNS_RR_SET_TYPE(r) DNS__SET16BIT(r, v)
+#define DNS_RR_SET_CLASS(r) DNS__SET16BIT((r) + 2, v)
+#define DNS_RR_SET_TTL(r) DNS__SET32BIT((r) + 4, v)
+#define DNS_RR_SET_LEN(r) DNS__SET16BIT((r) + 8, v)
+
+#endif /* ARES__DNS_H */
diff --git a/3rdParty/CAres/src/ares_expand_name.c b/3rdParty/CAres/src/ares_expand_name.c
new file mode 100644
index 0000000..75e88e8
--- /dev/null
+++ b/3rdParty/CAres/src/ares_expand_name.c
@@ -0,0 +1,190 @@
+/* $Id: ares_expand_name.c,v 1.20 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#include <stdlib.h>
+#include "ares.h"
+#include "ares_private.h" /* for the memdebug */
+
+static int name_length(const unsigned char *encoded, const unsigned char *abuf,
+ int alen);
+
+/* Expand an RFC1035-encoded domain name given by encoded. The
+ * containing message is given by abuf and alen. The result given by
+ * *s, which is set to a NUL-terminated allocated buffer. *enclen is
+ * set to the length of the encoded name (not the length of the
+ * expanded name; the goal is to tell the caller how many bytes to
+ * move forward to get past the encoded name).
+ *
+ * In the simple case, an encoded name is a series of labels, each
+ * composed of a one-byte length (limited to values between 0 and 63
+ * inclusive) followed by the label contents. The name is terminated
+ * by a zero-length label.
+ *
+ * In the more complicated case, a label may be terminated by an
+ * indirection pointer, specified by two bytes with the high bits of
+ * the first byte (corresponding to INDIR_MASK) set to 11. With the
+ * two high bits of the first byte stripped off, the indirection
+ * pointer gives an offset from the beginning of the containing
+ * message with more labels to decode. Indirection can happen an
+ * arbitrary number of times, so we have to detect loops.
+ *
+ * Since the expanded name uses '.' as a label separator, we use
+ * backslashes to escape periods or backslashes in the expanded name.
+ */
+
+int ares_expand_name(const unsigned char *encoded, const unsigned char *abuf,
+ int alen, char **s, long *enclen)
+{
+ int len, indir = 0;
+ char *q;
+ const unsigned char *p;
+
+ len = name_length(encoded, abuf, alen);
+ if (len < 0)
+ return ARES_EBADNAME;
+
+ *s = malloc(((size_t)len) + 1);
+ if (!*s)
+ return ARES_ENOMEM;
+ q = *s;
+
+ if (len == 0) {
+ /* RFC2181 says this should be ".": the root of the DNS tree.
+ * Since this function strips trailing dots though, it becomes ""
+ */
+ q[0] = '\0';
+ *enclen = 1; /* the caller should move one byte to get past this */
+ return ARES_SUCCESS;
+ }
+
+ /* No error-checking necessary; it was all done by name_length(). */
+ p = encoded;
+ while (*p)
+ {
+ if ((*p & INDIR_MASK) == INDIR_MASK)
+ {
+ if (!indir)
+ {
+ *enclen = p + 2 - encoded;
+ indir = 1;
+ }
+ p = abuf + ((*p & ~INDIR_MASK) << 8 | *(p + 1));
+ }
+ else
+ {
+ len = *p;
+ p++;
+ while (len--)
+ {
+ if (*p == '.' || *p == '\\')
+ *q++ = '\\';
+ *q++ = *p;
+ p++;
+ }
+ *q++ = '.';
+ }
+ }
+ if (!indir)
+ *enclen = p + 1 - encoded;
+
+ /* Nuke the trailing period if we wrote one. */
+ if (q > *s)
+ *(q - 1) = 0;
+ else
+ *q = 0; /* zero terminate */
+
+ return ARES_SUCCESS;
+}
+
+/* Return the length of the expansion of an encoded domain name, or
+ * -1 if the encoding is invalid.
+ */
+static int name_length(const unsigned char *encoded, const unsigned char *abuf,
+ int alen)
+{
+ int n = 0, offset, indir = 0;
+
+ /* Allow the caller to pass us abuf + alen and have us check for it. */
+ if (encoded == abuf + alen)
+ return -1;
+
+ while (*encoded)
+ {
+ if ((*encoded & INDIR_MASK) == INDIR_MASK)
+ {
+ /* Check the offset and go there. */
+ if (encoded + 1 >= abuf + alen)
+ return -1;
+ offset = (*encoded & ~INDIR_MASK) << 8 | *(encoded + 1);
+ if (offset >= alen)
+ return -1;
+ encoded = abuf + offset;
+
+ /* If we've seen more indirects than the message length,
+ * then there's a loop.
+ */
+ if (++indir > alen)
+ return -1;
+ }
+ else
+ {
+ offset = *encoded;
+ if (encoded + offset + 1 >= abuf + alen)
+ return -1;
+ encoded++;
+ while (offset--)
+ {
+ n += (*encoded == '.' || *encoded == '\\') ? 2 : 1;
+ encoded++;
+ }
+ n++;
+ }
+ }
+
+ /* If there were any labels at all, then the number of dots is one
+ * less than the number of labels, so subtract one.
+ */
+ return (n) ? n - 1 : n;
+}
+
+/* Like ares_expand_name but returns EBADRESP in case of invalid input. */
+int ares__expand_name_for_response(const unsigned char *encoded,
+ const unsigned char *abuf, int alen,
+ char **s, long *enclen)
+{
+ int status = ares_expand_name(encoded, abuf, alen, s, enclen);
+ if (status == ARES_EBADNAME)
+ status = ARES_EBADRESP;
+ return status;
+}
diff --git a/3rdParty/CAres/src/ares_expand_string.c b/3rdParty/CAres/src/ares_expand_string.c
new file mode 100644
index 0000000..c72bb62
--- /dev/null
+++ b/3rdParty/CAres/src/ares_expand_string.c
@@ -0,0 +1,72 @@
+/* $Id: ares_expand_string.c,v 1.10 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+
+#include <string.h>
+#include <stdlib.h>
+#include "ares.h"
+#include "ares_private.h" /* for the memdebug */
+
+/* Simply decodes a length-encoded character string. The first byte of the
+ * input is the length of the string to be returned and the bytes thereafter
+ * are the characters of the string. The returned result will be NULL
+ * terminated.
+ */
+int ares_expand_string(const unsigned char *encoded,
+ const unsigned char *abuf,
+ int alen,
+ unsigned char **s,
+ long *enclen)
+{
+ unsigned char *q;
+ long len;
+ if (encoded == abuf+alen)
+ return ARES_EBADSTR;
+
+ len = *encoded;
+ if (encoded+len+1 > abuf+alen)
+ return ARES_EBADSTR;
+
+ encoded++;
+
+ *s = malloc(len+1);
+ if (*s == NULL)
+ return ARES_ENOMEM;
+ q = *s;
+ strncpy((char *)q, (char *)encoded, len);
+ q[len] = '\0';
+
+ *s = q;
+
+ *enclen = len+1;
+
+ return ARES_SUCCESS;
+}
+
diff --git a/3rdParty/CAres/src/ares_fds.c b/3rdParty/CAres/src/ares_fds.c
new file mode 100644
index 0000000..6ffe9c7
--- /dev/null
+++ b/3rdParty/CAres/src/ares_fds.c
@@ -0,0 +1,63 @@
+/* $Id: ares_fds.c,v 1.12 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+
+#include "ares.h"
+#include "ares_private.h"
+
+int ares_fds(ares_channel channel, fd_set *read_fds, fd_set *write_fds)
+{
+ struct server_state *server;
+ ares_socket_t nfds;
+ int i;
+
+ /* Are there any active queries? */
+ int active_queries = !ares__is_list_empty(&(channel->all_queries));
+
+ nfds = 0;
+ for (i = 0; i < channel->nservers; i++)
+ {
+ server = &channel->servers[i];
+ /* We only need to register interest in UDP sockets if we have
+ * outstanding queries.
+ */
+ if (active_queries && server->udp_socket != ARES_SOCKET_BAD)
+ {
+ FD_SET(server->udp_socket, read_fds);
+ if (server->udp_socket >= nfds)
+ nfds = server->udp_socket + 1;
+ }
+ /* We always register for TCP events, because we want to know
+ * when the other side closes the connection, so we don't waste
+ * time trying to use a broken connection.
+ */
+ if (server->tcp_socket != ARES_SOCKET_BAD)
+ {
+ FD_SET(server->tcp_socket, read_fds);
+ if (server->qhead)
+ FD_SET(server->tcp_socket, write_fds);
+ if (server->tcp_socket >= nfds)
+ nfds = server->tcp_socket + 1;
+ }
+ }
+ return (int)nfds;
+}
diff --git a/3rdParty/CAres/src/ares_free_hostent.c b/3rdParty/CAres/src/ares_free_hostent.c
new file mode 100644
index 0000000..c0794ee
--- /dev/null
+++ b/3rdParty/CAres/src/ares_free_hostent.c
@@ -0,0 +1,40 @@
+/* $Id: ares_free_hostent.c,v 1.12 2009-11-09 12:56:50 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+#include <stdlib.h>
+
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+
+#include "ares.h"
+#include "ares_private.h" /* for memdebug */
+
+void ares_free_hostent(struct hostent *host)
+{
+ char **p;
+
+ free((char *)(host->h_name));
+ for (p = host->h_aliases; *p; p++)
+ free(*p);
+ free(host->h_aliases);
+ free(host->h_addr_list[0]); /* no matter if there is one or many entries,
+ there is only one malloc for all of them */
+ free(host->h_addr_list);
+ free(host);
+}
diff --git a/3rdParty/CAres/src/ares_free_string.c b/3rdParty/CAres/src/ares_free_string.c
new file mode 100644
index 0000000..38f98f9
--- /dev/null
+++ b/3rdParty/CAres/src/ares_free_string.c
@@ -0,0 +1,26 @@
+/* $Id: ares_free_string.c,v 1.7 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 2000 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+#include <stdlib.h>
+#include "ares.h"
+#include "ares_private.h"
+
+void ares_free_string(void *str)
+{
+ free(str);
+}
diff --git a/3rdParty/CAres/src/ares_gethostbyaddr.c b/3rdParty/CAres/src/ares_gethostbyaddr.c
new file mode 100644
index 0000000..732a031
--- /dev/null
+++ b/3rdParty/CAres/src/ares_gethostbyaddr.c
@@ -0,0 +1,291 @@
+/* $Id: ares_gethostbyaddr.c,v 1.35 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_NETDB_H
+# include <netdb.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+# include <arpa/inet.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "ares.h"
+#include "inet_net_pton.h"
+#include "ares_private.h"
+
+#ifdef WATT32
+#undef WIN32
+#endif
+
+struct addr_query {
+ /* Arguments passed to ares_gethostbyaddr() */
+ ares_channel channel;
+ struct ares_addr addr;
+ ares_host_callback callback;
+ void *arg;
+
+ const char *remaining_lookups;
+ int timeouts;
+};
+
+static void next_lookup(struct addr_query *aquery);
+static void addr_callback(void *arg, int status, int timeouts,
+ unsigned char *abuf, int alen);
+static void end_aquery(struct addr_query *aquery, int status,
+ struct hostent *host);
+static int file_lookup(struct ares_addr *addr, struct hostent **host);
+static void ptr_rr_name(char *name, const struct ares_addr *addr);
+
+void ares_gethostbyaddr(ares_channel channel, const void *addr, int addrlen,
+ int family, ares_host_callback callback, void *arg)
+{
+ struct addr_query *aquery;
+
+ if (family != AF_INET && family != AF_INET6)
+ {
+ callback(arg, ARES_ENOTIMP, 0, NULL);
+ return;
+ }
+
+ if ((family == AF_INET && addrlen != sizeof(struct in_addr)) ||
+ (family == AF_INET6 && addrlen != sizeof(struct in6_addr)))
+ {
+ callback(arg, ARES_ENOTIMP, 0, NULL);
+ return;
+ }
+
+ aquery = malloc(sizeof(struct addr_query));
+ if (!aquery)
+ {
+ callback(arg, ARES_ENOMEM, 0, NULL);
+ return;
+ }
+ aquery->channel = channel;
+ if (family == AF_INET)
+ memcpy(&aquery->addr.addrV4, addr, sizeof(struct in_addr));
+ else
+ memcpy(&aquery->addr.addrV6, addr, sizeof(struct in6_addr));
+ aquery->addr.family = family;
+ aquery->callback = callback;
+ aquery->arg = arg;
+ aquery->remaining_lookups = channel->lookups;
+ aquery->timeouts = 0;
+
+ next_lookup(aquery);
+}
+
+static void next_lookup(struct addr_query *aquery)
+{
+ const char *p;
+ char name[128];
+ int status;
+ struct hostent *host;
+
+ for (p = aquery->remaining_lookups; *p; p++)
+ {
+ switch (*p)
+ {
+ case 'b':
+ ptr_rr_name(name, &aquery->addr);
+ aquery->remaining_lookups = p + 1;
+ ares_query(aquery->channel, name, C_IN, T_PTR, addr_callback,
+ aquery);
+ return;
+ case 'f':
+ status = file_lookup(&aquery->addr, &host);
+
+ /* this status check below previously checked for !ARES_ENOTFOUND,
+ but we should not assume that this single error code is the one
+ that can occur, as that is in fact no longer the case */
+ if (status == ARES_SUCCESS)
+ {
+ end_aquery(aquery, status, host);
+ return;
+ }
+ break;
+ }
+ }
+ end_aquery(aquery, ARES_ENOTFOUND, NULL);
+}
+
+static void addr_callback(void *arg, int status, int timeouts,
+ unsigned char *abuf, int alen)
+{
+ struct addr_query *aquery = (struct addr_query *) arg;
+ struct hostent *host;
+ size_t addrlen;
+
+ aquery->timeouts += timeouts;
+ if (status == ARES_SUCCESS)
+ {
+ if (aquery->addr.family == AF_INET)
+ {
+ addrlen = sizeof(struct in_addr);
+ status = ares_parse_ptr_reply(abuf, alen, &aquery->addr.addrV4,
+ (int)addrlen, AF_INET, &host);
+ }
+ else
+ {
+ addrlen = sizeof(struct in6_addr);
+ status = ares_parse_ptr_reply(abuf, alen, &aquery->addr.addrV6,
+ (int)addrlen, AF_INET6, &host);
+ }
+ end_aquery(aquery, status, host);
+ }
+ else if (status == ARES_EDESTRUCTION)
+ end_aquery(aquery, status, NULL);
+ else
+ next_lookup(aquery);
+}
+
+static void end_aquery(struct addr_query *aquery, int status,
+ struct hostent *host)
+{
+ aquery->callback(aquery->arg, status, aquery->timeouts, host);
+ if (host)
+ ares_free_hostent(host);
+ free(aquery);
+}
+
+static int file_lookup(struct ares_addr *addr, struct hostent **host)
+{
+ FILE *fp;
+ int status;
+ int error;
+
+#ifdef WIN32
+ char PATH_HOSTS[MAX_PATH];
+ if (IS_NT()) {
+ char tmp[MAX_PATH];
+ HKEY hkeyHosts;
+
+ if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, WIN_NS_NT_KEY, 0, KEY_READ, &hkeyHosts)
+ == ERROR_SUCCESS)
+ {
+ DWORD dwLength = MAX_PATH;
+ RegQueryValueEx(hkeyHosts, DATABASEPATH, NULL, NULL, (LPBYTE)tmp,
+ &dwLength);
+ ExpandEnvironmentStrings(tmp, PATH_HOSTS, MAX_PATH);
+ RegCloseKey(hkeyHosts);
+ }
+ }
+ else
+ GetWindowsDirectory(PATH_HOSTS, MAX_PATH);
+
+ strcat(PATH_HOSTS, WIN_PATH_HOSTS);
+
+#elif defined(WATT32)
+ extern const char *_w32_GetHostsFile (void);
+ const char *PATH_HOSTS = _w32_GetHostsFile();
+
+ if (!PATH_HOSTS)
+ return ARES_ENOTFOUND;
+#endif
+
+ fp = fopen(PATH_HOSTS, "r");
+ if (!fp)
+ {
+ error = ERRNO;
+ switch(error)
+ {
+ case ENOENT:
+ case ESRCH:
+ return ARES_ENOTFOUND;
+ default:
+ DEBUGF(fprintf(stderr, "fopen() failed with error: %d %s\n",
+ error, strerror(error)));
+ DEBUGF(fprintf(stderr, "Error opening file: %s\n",
+ PATH_HOSTS));
+ *host = NULL;
+ return ARES_EFILE;
+ }
+ }
+ while ((status = ares__get_hostent(fp, addr->family, host)) == ARES_SUCCESS)
+ {
+ if (addr->family != (*host)->h_addrtype)
+ {
+ ares_free_hostent(*host);
+ continue;
+ }
+ if (addr->family == AF_INET)
+ {
+ if (memcmp((*host)->h_addr, &addr->addrV4, sizeof(struct in_addr)) == 0)
+ break;
+ }
+ else if (addr->family == AF_INET6)
+ {
+ if (memcmp((*host)->h_addr, &addr->addrV6, sizeof(struct in6_addr)) == 0)
+ break;
+ }
+ ares_free_hostent(*host);
+ }
+ fclose(fp);
+ if (status == ARES_EOF)
+ status = ARES_ENOTFOUND;
+ if (status != ARES_SUCCESS)
+ *host = NULL;
+ return status;
+}
+
+static void ptr_rr_name(char *name, const struct ares_addr *addr)
+{
+ if (addr->family == AF_INET)
+ {
+ unsigned long laddr = ntohl(addr->addrV4.s_addr);
+ int a1 = (int)((laddr >> 24) & 0xff);
+ int a2 = (int)((laddr >> 16) & 0xff);
+ int a3 = (int)((laddr >> 8) & 0xff);
+ int a4 = (int)(laddr & 0xff);
+ sprintf(name, "%d.%d.%d.%d.in-addr.arpa", a4, a3, a2, a1);
+ }
+ else
+ {
+ unsigned char *bytes = (unsigned char *)&addr->addrV6.s6_addr;
+ /* There are too many arguments to do this in one line using
+ * minimally C89-compliant compilers */
+ sprintf(name,
+ "%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.",
+ bytes[15]&0xf, bytes[15] >> 4, bytes[14]&0xf, bytes[14] >> 4,
+ bytes[13]&0xf, bytes[13] >> 4, bytes[12]&0xf, bytes[12] >> 4,
+ bytes[11]&0xf, bytes[11] >> 4, bytes[10]&0xf, bytes[10] >> 4,
+ bytes[9]&0xf, bytes[9] >> 4, bytes[8]&0xf, bytes[8] >> 4);
+ sprintf(name+strlen(name),
+ "%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.ip6.arpa",
+ bytes[7]&0xf, bytes[7] >> 4, bytes[6]&0xf, bytes[6] >> 4,
+ bytes[5]&0xf, bytes[5] >> 4, bytes[4]&0xf, bytes[4] >> 4,
+ bytes[3]&0xf, bytes[3] >> 4, bytes[2]&0xf, bytes[2] >> 4,
+ bytes[1]&0xf, bytes[1] >> 4, bytes[0]&0xf, bytes[0] >> 4);
+ }
+}
diff --git a/3rdParty/CAres/src/ares_gethostbyname.c b/3rdParty/CAres/src/ares_gethostbyname.c
new file mode 100644
index 0000000..fc66c6f
--- /dev/null
+++ b/3rdParty/CAres/src/ares_gethostbyname.c
@@ -0,0 +1,511 @@
+/* $Id: ares_gethostbyname.c,v 1.50 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_NETDB_H
+# include <netdb.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+# include <arpa/inet.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+
+#include "ares.h"
+#include "inet_net_pton.h"
+#include "bitncmp.h"
+#include "ares_private.h"
+
+#ifdef WATT32
+#undef WIN32
+#endif
+
+struct host_query {
+ /* Arguments passed to ares_gethostbyname() */
+ ares_channel channel;
+ char *name;
+ ares_host_callback callback;
+ void *arg;
+ int sent_family; /* this family is what was is being used */
+ int want_family; /* this family is what is asked for in the API */
+ const char *remaining_lookups;
+ int timeouts;
+};
+
+static void next_lookup(struct host_query *hquery, int status_code);
+static void host_callback(void *arg, int status, int timeouts,
+ unsigned char *abuf, int alen);
+static void end_hquery(struct host_query *hquery, int status,
+ struct hostent *host);
+static int fake_hostent(const char *name, int family,
+ ares_host_callback callback, void *arg);
+static int file_lookup(const char *name, int family, struct hostent **host);
+static void sort_addresses(struct hostent *host,
+ const struct apattern *sortlist, int nsort);
+static void sort6_addresses(struct hostent *host,
+ const struct apattern *sortlist, int nsort);
+static int get_address_index(const struct in_addr *addr,
+ const struct apattern *sortlist, int nsort);
+static int get6_address_index(const struct in6_addr *addr,
+ const struct apattern *sortlist, int nsort);
+
+void ares_gethostbyname(ares_channel channel, const char *name, int family,
+ ares_host_callback callback, void *arg)
+{
+ struct host_query *hquery;
+
+ /* Right now we only know how to look up Internet addresses - and unspec
+ means try both basically. */
+ switch (family) {
+ case AF_INET:
+ case AF_INET6:
+ case AF_UNSPEC:
+ break;
+ default:
+ callback(arg, ARES_ENOTIMP, 0, NULL);
+ return;
+ }
+
+ if (fake_hostent(name, family, callback, arg))
+ return;
+
+ /* Allocate and fill in the host query structure. */
+ hquery = malloc(sizeof(struct host_query));
+ if (!hquery)
+ {
+ callback(arg, ARES_ENOMEM, 0, NULL);
+ return;
+ }
+ hquery->channel = channel;
+ hquery->name = strdup(name);
+ hquery->want_family = family;
+ hquery->sent_family = -1; /* nothing is sent yet */
+ if (!hquery->name) {
+ free(hquery);
+ callback(arg, ARES_ENOMEM, 0, NULL);
+ return;
+ }
+ hquery->callback = callback;
+ hquery->arg = arg;
+ hquery->remaining_lookups = channel->lookups;
+ hquery->timeouts = 0;
+
+ /* Start performing lookups according to channel->lookups. */
+ next_lookup(hquery, ARES_ECONNREFUSED /* initial error code */);
+}
+
+static void next_lookup(struct host_query *hquery, int status_code)
+{
+ const char *p;
+ struct hostent *host;
+ int status = status_code;
+
+ for (p = hquery->remaining_lookups; *p; p++)
+ {
+ switch (*p)
+ {
+ case 'b':
+ /* DNS lookup */
+ hquery->remaining_lookups = p + 1;
+ if ((hquery->want_family == AF_INET6) ||
+ (hquery->want_family == AF_UNSPEC)) {
+ /* if inet6 or unspec, start out with AAAA */
+ hquery->sent_family = AF_INET6;
+ ares_search(hquery->channel, hquery->name, C_IN, T_AAAA,
+ host_callback, hquery);
+ }
+ else {
+ hquery->sent_family = AF_INET;
+ ares_search(hquery->channel, hquery->name, C_IN, T_A, host_callback,
+ hquery);
+ }
+ return;
+
+ case 'f':
+ /* Host file lookup */
+ status = file_lookup(hquery->name, hquery->want_family, &host);
+
+ /* this status check below previously checked for !ARES_ENOTFOUND,
+ but we should not assume that this single error code is the one
+ that can occur, as that is in fact no longer the case */
+ if (status == ARES_SUCCESS)
+ {
+ end_hquery(hquery, status, host);
+ return;
+ }
+ status = status_code; /* Use original status code */
+ break;
+ }
+ }
+ end_hquery(hquery, status, NULL);
+}
+
+static void host_callback(void *arg, int status, int timeouts,
+ unsigned char *abuf, int alen)
+{
+ struct host_query *hquery = (struct host_query *) arg;
+ ares_channel channel = hquery->channel;
+ struct hostent *host = NULL;
+
+ hquery->timeouts += timeouts;
+ if (status == ARES_SUCCESS)
+ {
+ if (hquery->sent_family == AF_INET)
+ {
+ status = ares_parse_a_reply(abuf, alen, &host, NULL, NULL);
+ if (host && channel->nsort)
+ sort_addresses(host, channel->sortlist, channel->nsort);
+ }
+ else if (hquery->sent_family == AF_INET6)
+ {
+ status = ares_parse_aaaa_reply(abuf, alen, &host, NULL, NULL);
+ if (status == ARES_ENODATA || status == ARES_EBADRESP) {
+ /* The query returned something but either there were no AAAA records (e.g. just CNAME)
+ or the response was malformed. Try looking up A instead.
+ We should possibly limit this attempt-next logic to AF_UNSPEC lookups only. */
+ hquery->sent_family = AF_INET;
+ ares_search(hquery->channel, hquery->name, C_IN, T_A,
+ host_callback, hquery);
+ return;
+ }
+ if (host && channel->nsort)
+ sort6_addresses(host, channel->sortlist, channel->nsort);
+ }
+ end_hquery(hquery, status, host);
+ }
+ else if ((status == ARES_ENODATA || status == ARES_EBADRESP || status == ARES_ETIMEOUT) && hquery->sent_family == AF_INET6)
+ {
+ /* The AAAA query yielded no useful result. Now look up an A instead.
+ We should possibly limit this attempt-next logic to AF_UNSPEC lookups only. */
+ hquery->sent_family = AF_INET;
+ ares_search(hquery->channel, hquery->name, C_IN, T_A, host_callback,
+ hquery);
+ }
+ else if (status == ARES_EDESTRUCTION)
+ end_hquery(hquery, status, NULL);
+ else
+ next_lookup(hquery, status);
+}
+
+static void end_hquery(struct host_query *hquery, int status,
+ struct hostent *host)
+{
+ hquery->callback(hquery->arg, status, hquery->timeouts, host);
+ if (host)
+ ares_free_hostent(host);
+ free(hquery->name);
+ free(hquery);
+}
+
+/* If the name looks like an IP address, fake up a host entry, end the
+ * query immediately, and return true. Otherwise return false.
+ */
+static int fake_hostent(const char *name, int family, ares_host_callback callback,
+ void *arg)
+{
+ struct hostent hostent;
+ char *aliases[1] = { NULL };
+ char *addrs[2];
+ int result = 0;
+ struct in_addr in;
+ struct in6_addr in6;
+
+ if (family == AF_INET || family == AF_INET6)
+ {
+ /* It only looks like an IP address if it's all numbers and dots. */
+ int numdots = 0, valid = 1;
+ const char *p;
+ for (p = name; *p; p++)
+ {
+ if (!ISDIGIT(*p) && *p != '.') {
+ valid = 0;
+ break;
+ } else if (*p == '.') {
+ numdots++;
+ }
+ }
+
+ /* if we don't have 3 dots, it is illegal
+ * (although inet_addr doesn't think so).
+ */
+ if (numdots != 3 || !valid)
+ result = 0;
+ else
+ result = ((in.s_addr = inet_addr(name)) == INADDR_NONE ? 0 : 1);
+
+ if (result)
+ family = AF_INET;
+ }
+ if (family == AF_INET6)
+ result = (ares_inet_pton(AF_INET6, name, &in6) < 1 ? 0 : 1);
+
+ if (!result)
+ return 0;
+
+ if (family == AF_INET)
+ {
+ hostent.h_length = (int)sizeof(struct in_addr);
+ addrs[0] = (char *)&in;
+ }
+ else if (family == AF_INET6)
+ {
+ hostent.h_length = (int)sizeof(struct in6_addr);
+ addrs[0] = (char *)&in6;
+ }
+ /* Duplicate the name, to avoid a constness violation. */
+ hostent.h_name = strdup(name);
+ if (!hostent.h_name)
+ {
+ callback(arg, ARES_ENOMEM, 0, NULL);
+ return 1;
+ }
+
+ /* Fill in the rest of the host structure and terminate the query. */
+ addrs[1] = NULL;
+ hostent.h_aliases = aliases;
+ hostent.h_addrtype = family;
+ hostent.h_addr_list = addrs;
+ callback(arg, ARES_SUCCESS, 0, &hostent);
+
+ free((char *)(hostent.h_name));
+ return 1;
+}
+
+/* This is an API method */
+int ares_gethostbyname_file(ares_channel channel, const char *name,
+ int family, struct hostent **host)
+{
+ int result;
+
+ /* We only take the channel to ensure that ares_init() been called. */
+ if(channel == NULL)
+ {
+ /* Anything will do, really. This seems fine, and is consistent with
+ other error cases. */
+ *host = NULL;
+ return ARES_ENOTFOUND;
+ }
+
+ /* Just chain to the internal implementation we use here; it's exactly
+ * what we want.
+ */
+ result = file_lookup(name, family, host);
+ if(result != ARES_SUCCESS)
+ {
+ /* We guarantee a NULL hostent on failure. */
+ *host = NULL;
+ }
+ return result;
+}
+
+static int file_lookup(const char *name, int family, struct hostent **host)
+{
+ FILE *fp;
+ char **alias;
+ int status;
+ int error;
+
+#ifdef WIN32
+ char PATH_HOSTS[MAX_PATH];
+ if (IS_NT()) {
+ char tmp[MAX_PATH];
+ HKEY hkeyHosts;
+
+ if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, WIN_NS_NT_KEY, 0, KEY_READ, &hkeyHosts)
+ == ERROR_SUCCESS)
+ {
+ DWORD dwLength = MAX_PATH;
+ RegQueryValueEx(hkeyHosts, DATABASEPATH, NULL, NULL, (LPBYTE)tmp,
+ &dwLength);
+ ExpandEnvironmentStrings(tmp, PATH_HOSTS, MAX_PATH);
+ RegCloseKey(hkeyHosts);
+ }
+ }
+ else
+ GetWindowsDirectory(PATH_HOSTS, MAX_PATH);
+
+ strcat(PATH_HOSTS, WIN_PATH_HOSTS);
+
+#elif defined(WATT32)
+ extern const char *_w32_GetHostsFile (void);
+ const char *PATH_HOSTS = _w32_GetHostsFile();
+
+ if (!PATH_HOSTS)
+ return ARES_ENOTFOUND;
+#endif
+
+ fp = fopen(PATH_HOSTS, "r");
+ if (!fp)
+ {
+ error = ERRNO;
+ switch(error)
+ {
+ case ENOENT:
+ case ESRCH:
+ return ARES_ENOTFOUND;
+ default:
+ DEBUGF(fprintf(stderr, "fopen() failed with error: %d %s\n",
+ error, strerror(error)));
+ DEBUGF(fprintf(stderr, "Error opening file: %s\n",
+ PATH_HOSTS));
+ *host = NULL;
+ return ARES_EFILE;
+ }
+ }
+ while ((status = ares__get_hostent(fp, family, host)) == ARES_SUCCESS)
+ {
+ if (strcasecmp((*host)->h_name, name) == 0)
+ break;
+ for (alias = (*host)->h_aliases; *alias; alias++)
+ {
+ if (strcasecmp(*alias, name) == 0)
+ break;
+ }
+ if (*alias)
+ break;
+ ares_free_hostent(*host);
+ }
+ fclose(fp);
+ if (status == ARES_EOF)
+ status = ARES_ENOTFOUND;
+ if (status != ARES_SUCCESS)
+ *host = NULL;
+ return status;
+}
+
+static void sort_addresses(struct hostent *host, const struct apattern *sortlist,
+ int nsort)
+{
+ struct in_addr a1, a2;
+ int i1, i2, ind1, ind2;
+
+ /* This is a simple insertion sort, not optimized at all. i1 walks
+ * through the address list, with the loop invariant that everything
+ * to the left of i1 is sorted. In the loop body, the value at i1 is moved
+ * back through the list (via i2) until it is in sorted order.
+ */
+ for (i1 = 0; host->h_addr_list[i1]; i1++)
+ {
+ memcpy(&a1, host->h_addr_list[i1], sizeof(struct in_addr));
+ ind1 = get_address_index(&a1, sortlist, nsort);
+ for (i2 = i1 - 1; i2 >= 0; i2--)
+ {
+ memcpy(&a2, host->h_addr_list[i2], sizeof(struct in_addr));
+ ind2 = get_address_index(&a2, sortlist, nsort);
+ if (ind2 <= ind1)
+ break;
+ memcpy(host->h_addr_list[i2 + 1], &a2, sizeof(struct in_addr));
+ }
+ memcpy(host->h_addr_list[i2 + 1], &a1, sizeof(struct in_addr));
+ }
+}
+
+/* Find the first entry in sortlist which matches addr. Return nsort
+ * if none of them match.
+ */
+static int get_address_index(const struct in_addr *addr,
+ const struct apattern *sortlist,
+ int nsort)
+{
+ int i;
+
+ for (i = 0; i < nsort; i++)
+ {
+ if (sortlist[i].family != AF_INET)
+ continue;
+ if (sortlist[i].type == PATTERN_MASK)
+ {
+ if ((addr->s_addr & sortlist[i].mask.addr4.s_addr)
+ == sortlist[i].addrV4.s_addr)
+ break;
+ }
+ else
+ {
+ if (!ares_bitncmp(&addr->s_addr, &sortlist[i].addrV4.s_addr,
+ sortlist[i].mask.bits))
+ break;
+ }
+ }
+ return i;
+}
+
+static void sort6_addresses(struct hostent *host, const struct apattern *sortlist,
+ int nsort)
+{
+ struct in6_addr a1, a2;
+ int i1, i2, ind1, ind2;
+
+ /* This is a simple insertion sort, not optimized at all. i1 walks
+ * through the address list, with the loop invariant that everything
+ * to the left of i1 is sorted. In the loop body, the value at i1 is moved
+ * back through the list (via i2) until it is in sorted order.
+ */
+ for (i1 = 0; host->h_addr_list[i1]; i1++)
+ {
+ memcpy(&a1, host->h_addr_list[i1], sizeof(struct in6_addr));
+ ind1 = get6_address_index(&a1, sortlist, nsort);
+ for (i2 = i1 - 1; i2 >= 0; i2--)
+ {
+ memcpy(&a2, host->h_addr_list[i2], sizeof(struct in6_addr));
+ ind2 = get6_address_index(&a2, sortlist, nsort);
+ if (ind2 <= ind1)
+ break;
+ memcpy(host->h_addr_list[i2 + 1], &a2, sizeof(struct in6_addr));
+ }
+ memcpy(host->h_addr_list[i2 + 1], &a1, sizeof(struct in6_addr));
+ }
+}
+
+/* Find the first entry in sortlist which matches addr. Return nsort
+ * if none of them match.
+ */
+static int get6_address_index(const struct in6_addr *addr,
+ const struct apattern *sortlist,
+ int nsort)
+{
+ int i;
+
+ for (i = 0; i < nsort; i++)
+ {
+ if (sortlist[i].family != AF_INET6)
+ continue;
+ if (!ares_bitncmp(&addr->s6_addr, &sortlist[i].addrV6.s6_addr, sortlist[i].mask.bits))
+ break;
+ }
+ return i;
+}
diff --git a/3rdParty/CAres/src/ares_getnameinfo.c b/3rdParty/CAres/src/ares_getnameinfo.c
new file mode 100644
index 0000000..c1c0b16
--- /dev/null
+++ b/3rdParty/CAres/src/ares_getnameinfo.c
@@ -0,0 +1,409 @@
+/* $Id: ares_getnameinfo.c,v 1.36 2009-11-09 12:56:11 yangtse Exp $ */
+
+/* Copyright 2005 by Dominick Meglio
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+#include "ares_setup.h"
+
+#ifdef HAVE_GETSERVBYPORT_R
+# if !defined(GETSERVBYPORT_R_ARGS) || \
+ (GETSERVBYPORT_R_ARGS < 4) || (GETSERVBYPORT_R_ARGS > 6)
+# error "you MUST specifiy a valid number of arguments for getservbyport_r"
+# endif
+#endif
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_NETDB_H
+# include <netdb.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+# include <arpa/inet.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#ifdef HAVE_NET_IF_H
+#include <net/if.h>
+#endif
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "ares.h"
+#include "ares_ipv6.h"
+#include "inet_ntop.h"
+#include "ares_private.h"
+
+struct nameinfo_query {
+ ares_nameinfo_callback callback;
+ void *arg;
+ union {
+ struct sockaddr_in addr4;
+ struct sockaddr_in6 addr6;
+ } addr;
+ int family;
+ int flags;
+ int timeouts;
+};
+
+#ifdef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
+#define IPBUFSIZ 40+IF_NAMESIZE
+#else
+#define IPBUFSIZ 40
+#endif
+
+static void nameinfo_callback(void *arg, int status, int timeouts, struct hostent *host);
+static char *lookup_service(unsigned short port, int flags,
+ char *buf, size_t buflen);
+#ifdef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
+static void append_scopeid(struct sockaddr_in6 *addr6, unsigned int scopeid,
+ char *buf, size_t buflen);
+#endif
+static char *ares_striendstr(const char *s1, const char *s2);
+
+void ares_getnameinfo(ares_channel channel, const struct sockaddr *sa,
+ ares_socklen_t salen,
+ int flags, ares_nameinfo_callback callback, void *arg)
+{
+ struct sockaddr_in *addr = NULL;
+ struct sockaddr_in6 *addr6 = NULL;
+ struct nameinfo_query *niquery;
+ unsigned int port = 0;
+
+ /* Verify the buffer size */
+ if (salen == sizeof(struct sockaddr_in))
+ {
+ addr = (struct sockaddr_in *)sa;
+ port = addr->sin_port;
+ }
+ else if (salen == sizeof(struct sockaddr_in6))
+ {
+ addr6 = (struct sockaddr_in6 *)sa;
+ port = addr6->sin6_port;
+ }
+ else
+ {
+ callback(arg, ARES_ENOTIMP, 0, NULL, NULL);
+ return;
+ }
+
+ /* If neither, assume they want a host */
+ if (!(flags & ARES_NI_LOOKUPSERVICE) && !(flags & ARES_NI_LOOKUPHOST))
+ flags |= ARES_NI_LOOKUPHOST;
+
+ /* All they want is a service, no need for DNS */
+ if ((flags & ARES_NI_LOOKUPSERVICE) && !(flags & ARES_NI_LOOKUPHOST))
+ {
+ char buf[33], *service;
+
+ service = lookup_service((unsigned short)(port & 0xffff),
+ flags, buf, sizeof(buf));
+ callback(arg, ARES_SUCCESS, 0, NULL, service);
+ return;
+ }
+
+ /* They want a host lookup */
+ if ((flags & ARES_NI_LOOKUPHOST))
+ {
+ /* A numeric host can be handled without DNS */
+ if ((flags & ARES_NI_NUMERICHOST))
+ {
+ char ipbuf[IPBUFSIZ];
+ char srvbuf[33];
+ char *service = NULL;
+ ipbuf[0] = 0;
+
+ /* Specifying not to lookup a host, but then saying a host
+ * is required has to be illegal.
+ */
+ if (flags & ARES_NI_NAMEREQD)
+ {
+ callback(arg, ARES_EBADFLAGS, 0, NULL, NULL);
+ return;
+ }
+ if (salen == sizeof(struct sockaddr_in6))
+ {
+ ares_inet_ntop(AF_INET6, &addr6->sin6_addr, ipbuf, IPBUFSIZ);
+ /* If the system supports scope IDs, use it */
+#ifdef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
+ append_scopeid(addr6, flags, ipbuf, sizeof(ipbuf));
+#endif
+ }
+ else
+ {
+ ares_inet_ntop(AF_INET, &addr->sin_addr, ipbuf, IPBUFSIZ);
+ }
+ /* They also want a service */
+ if (flags & ARES_NI_LOOKUPSERVICE)
+ service = lookup_service((unsigned short)(port & 0xffff),
+ flags, srvbuf, sizeof(srvbuf));
+ callback(arg, ARES_SUCCESS, 0, ipbuf, service);
+ return;
+ }
+ /* This is where a DNS lookup becomes necessary */
+ else
+ {
+ niquery = malloc(sizeof(struct nameinfo_query));
+ if (!niquery)
+ {
+ callback(arg, ARES_ENOMEM, 0, NULL, NULL);
+ return;
+ }
+ niquery->callback = callback;
+ niquery->arg = arg;
+ niquery->flags = flags;
+ niquery->timeouts = 0;
+ if (sa->sa_family == AF_INET)
+ {
+ niquery->family = AF_INET;
+ memcpy(&niquery->addr.addr4, addr, sizeof(addr));
+ ares_gethostbyaddr(channel, &addr->sin_addr, sizeof(struct in_addr), AF_INET,
+ nameinfo_callback, niquery);
+ }
+ else
+ {
+ niquery->family = AF_INET6;
+ memcpy(&niquery->addr.addr6, addr6, sizeof(addr6));
+ ares_gethostbyaddr(channel, &addr6->sin6_addr, sizeof(struct in6_addr), AF_INET6,
+ nameinfo_callback, niquery);
+ }
+ }
+ }
+}
+
+static void nameinfo_callback(void *arg, int status, int timeouts, struct hostent *host)
+{
+ struct nameinfo_query *niquery = (struct nameinfo_query *) arg;
+ char srvbuf[33];
+ char *service = NULL;
+
+ niquery->timeouts += timeouts;
+ if (status == ARES_SUCCESS)
+ {
+ /* They want a service too */
+ if (niquery->flags & ARES_NI_LOOKUPSERVICE)
+ {
+ if (niquery->family == AF_INET)
+ service = lookup_service(niquery->addr.addr4.sin_port,
+ niquery->flags, srvbuf, sizeof(srvbuf));
+ else
+ service = lookup_service(niquery->addr.addr6.sin6_port,
+ niquery->flags, srvbuf, sizeof(srvbuf));
+ }
+ /* NOFQDN means we have to strip off the domain name portion.
+ We do this by determining our own domain name, then searching the string
+ for this domain name and removing it.
+ */
+#ifdef HAVE_GETHOSTNAME
+ if (niquery->flags & ARES_NI_NOFQDN)
+ {
+ char buf[255];
+ char *domain;
+ gethostname(buf, 255);
+ if ((domain = strchr(buf, '.')))
+ {
+ char *end = ares_striendstr(host->h_name, domain);
+ if (end)
+ *end = 0;
+ }
+ }
+#endif
+ niquery->callback(niquery->arg, ARES_SUCCESS, niquery->timeouts, (char *)(host->h_name),
+ service);
+ return;
+ }
+ /* We couldn't find the host, but it's OK, we can use the IP */
+ else if (status == ARES_ENOTFOUND && !(niquery->flags & ARES_NI_NAMEREQD))
+ {
+ char ipbuf[IPBUFSIZ];
+ if (niquery->family == AF_INET)
+ ares_inet_ntop(AF_INET, &niquery->addr.addr4.sin_addr, ipbuf, IPBUFSIZ);
+ else
+ {
+ ares_inet_ntop(AF_INET6, &niquery->addr.addr6.sin6_addr, ipbuf, IPBUFSIZ);
+#ifdef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
+ append_scopeid(&niquery->addr.addr6, niquery->flags, ipbuf, sizeof(ipbuf));
+#endif
+ }
+ /* They want a service too */
+ if (niquery->flags & ARES_NI_LOOKUPSERVICE)
+ {
+ if (niquery->family == AF_INET)
+ service = lookup_service(niquery->addr.addr4.sin_port,
+ niquery->flags, srvbuf, sizeof(srvbuf));
+ else
+ service = lookup_service(niquery->addr.addr6.sin6_port,
+ niquery->flags, srvbuf, sizeof(srvbuf));
+ }
+ niquery->callback(niquery->arg, ARES_SUCCESS, niquery->timeouts, ipbuf, service);
+ return;
+ }
+ niquery->callback(niquery->arg, status, niquery->timeouts, NULL, NULL);
+ free(niquery);
+}
+
+static char *lookup_service(unsigned short port, int flags,
+ char *buf, size_t buflen)
+{
+ const char *proto;
+ struct servent *sep;
+#ifdef HAVE_GETSERVBYPORT_R
+ struct servent se;
+#endif
+ char tmpbuf[4096];
+
+ if (port)
+ {
+ if (flags & ARES_NI_NUMERICSERV)
+ sep = NULL;
+ else
+ {
+ if (flags & ARES_NI_UDP)
+ proto = "udp";
+ else if (flags & ARES_NI_SCTP)
+ proto = "sctp";
+ else if (flags & ARES_NI_DCCP)
+ proto = "dccp";
+ else
+ proto = "tcp";
+#ifdef HAVE_GETSERVBYPORT_R
+ sep = &se;
+ memset(tmpbuf, 0, sizeof(tmpbuf));
+#if GETSERVBYPORT_R_ARGS == 6
+ if (getservbyport_r(port, proto, &se, (void *)tmpbuf, sizeof(tmpbuf), &sep) != 0)
+ sep = NULL;
+#elif GETSERVBYPORT_R_ARGS == 5
+ sep = getservbyport_r(port, proto, &se, (void *)tmpbuf, sizeof(tmpbuf));
+#elif GETSERVBYPORT_R_ARGS == 4
+ if (getservbyport_r(port, proto, &se, (void *)tmpbuf) != 0)
+ sep = NULL;
+#else
+ /* Lets just hope the OS uses TLS! */
+ sep = getservbyport(port, proto);
+#endif
+#else
+ /* Lets just hope the OS uses TLS! */
+#if (defined(NETWARE) && !defined(__NOVELL_LIBC__))
+ sep = getservbyport(port, (char*)proto);
+#else
+ sep = getservbyport(port, proto);
+#endif
+#endif
+ }
+ if (sep && sep->s_name)
+ /* get service name */
+ strcpy(tmpbuf, sep->s_name);
+ else
+ /* get port as a string */
+ sprintf(tmpbuf, "%u", (unsigned int)ntohs(port));
+ if (strlen(tmpbuf) < buflen)
+ /* return it if buffer big enough */
+ strcpy(buf, tmpbuf);
+ else
+ /* avoid reusing previous one */
+ buf[0] = '\0';
+ return buf;
+ }
+ buf[0] = '\0';
+ return NULL;
+}
+
+#ifdef HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
+static void append_scopeid(struct sockaddr_in6 *addr6, unsigned int flags,
+ char *buf, size_t buflen)
+{
+#ifdef HAVE_IF_INDEXTONAME
+ int is_ll, is_mcll;
+#endif
+ char fmt_u[] = "%u";
+ char fmt_lu[] = "%lu";
+ char tmpbuf[IF_NAMESIZE + 2];
+ size_t bufl;
+ char *fmt = (sizeof(addr6->sin6_scope_id) > sizeof(unsigned int))?fmt_lu:fmt_u;
+
+ tmpbuf[0] = '%';
+
+#ifdef HAVE_IF_INDEXTONAME
+ is_ll = IN6_IS_ADDR_LINKLOCAL(&addr6->sin6_addr);
+ is_mcll = IN6_IS_ADDR_MC_LINKLOCAL(&addr6->sin6_addr);
+ if ((flags & ARES_NI_NUMERICSCOPE) ||
+ (!is_ll && !is_mcll))
+ {
+ sprintf(&tmpbuf[1], fmt, addr6->sin6_scope_id);
+ }
+ else
+ {
+ if (if_indextoname(addr6->sin6_scope_id, &tmpbuf[1]) == NULL)
+ sprintf(&tmpbuf[1], fmt, addr6->sin6_scope_id);
+ }
+#else
+ sprintf(&tmpbuf[1], fmt, addr6->sin6_scope_id);
+ (void) flags;
+#endif
+ tmpbuf[IF_NAMESIZE + 1] = '\0';
+ bufl = strlen(buf);
+
+ if(bufl + strlen(tmpbuf) < buflen)
+ /* only append the scopeid string if it fits in the target buffer */
+ strcpy(&buf[bufl], tmpbuf);
+}
+#endif
+
+/* Determines if s1 ends with the string in s2 (case-insensitive) */
+static char *ares_striendstr(const char *s1, const char *s2)
+{
+ const char *c1, *c2, *c1_begin;
+ int lo1, lo2;
+ size_t s1_len = strlen(s1), s2_len = strlen(s2);
+
+ /* If the substr is longer than the full str, it can't match */
+ if (s2_len > s1_len)
+ return NULL;
+
+ /* Jump to the end of s1 minus the length of s2 */
+ c1_begin = s1+s1_len-s2_len;
+ c1 = (const char *)c1_begin;
+ c2 = s2;
+ while (c2 < s2+s2_len)
+ {
+ lo1 = tolower(*c1);
+ lo2 = tolower(*c2);
+ if (lo1 != lo2)
+ return NULL;
+ else
+ {
+ c1++;
+ c2++;
+ }
+ }
+ if (c2 == c1 && c2 == NULL)
+ return (char *)c1_begin;
+ return NULL;
+}
diff --git a/3rdParty/CAres/src/ares_getopt.c b/3rdParty/CAres/src/ares_getopt.c
new file mode 100644
index 0000000..67e1be7
--- /dev/null
+++ b/3rdParty/CAres/src/ares_getopt.c
@@ -0,0 +1,123 @@
+/*
+ * Original file name getopt.c Initial import into the c-ares source tree
+ * on 2007-04-11. Lifted from version 5.2 of the 'Open Mash' project with
+ * the modified BSD license, BSD license without the advertising clause.
+ *
+ * $Id: ares_getopt.c,v 1.9 2009-11-22 03:41:26 yangtse Exp $
+ */
+
+/*
+ * getopt.c --
+ *
+ * Standard UNIX getopt function. Code is from BSD.
+ *
+ * Copyright (c) 1987-2001 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * A. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * B. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * C. Neither the names of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
+ * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* #if !defined(lint)
+ * static char sccsid[] = "@(#)getopt.c 8.2 (Berkeley) 4/2/94";
+ * #endif
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "ares_getopt.h"
+
+int opterr = 1, /* if error message should be printed */
+ optind = 1; /* index into parent argv vector */
+int optopt = 0; /* character checked for validity */
+static int optreset; /* reset getopt */
+char *optarg; /* argument associated with option */
+
+#define BADCH (int)'?'
+#define BADARG (int)':'
+#define EMSG (char *)""
+
+/*
+ * ares_getopt --
+ * Parse argc/argv argument vector.
+ */
+int
+ares_getopt(int nargc, char * const nargv[], const char *ostr)
+{
+ static char *place = EMSG; /* option letter processing */
+ char *oli; /* option letter list index */
+
+ if (optreset || !*place) { /* update scanning pointer */
+ optreset = 0;
+ if (optind >= nargc || *(place = nargv[optind]) != '-') {
+ place = EMSG;
+ return (EOF);
+ }
+ if (place[1] && *++place == '-') { /* found "--" */
+ ++optind;
+ place = EMSG;
+ return (EOF);
+ }
+ } /* option letter okay? */
+ if ((optopt = (int)*place++) == (int)':' ||
+ (oli = strchr(ostr, optopt)) == NULL) {
+ /*
+ * if the user didn't specify '-' as an option,
+ * assume it means EOF.
+ */
+ if (optopt == (int)'-')
+ return (EOF);
+ if (!*place)
+ ++optind;
+ if (opterr && *ostr != ':')
+ (void)fprintf(stderr,
+ "%s: illegal option -- %c\n", __FILE__, optopt);
+ return (BADCH);
+ }
+ if (*++oli != ':') { /* don't need argument */
+ optarg = NULL;
+ if (!*place)
+ ++optind;
+ }
+ else { /* need an argument */
+ if (*place) /* no white space */
+ optarg = place;
+ else if (nargc <= ++optind) { /* no arg */
+ place = EMSG;
+ if (*ostr == ':')
+ return (BADARG);
+ if (opterr)
+ (void)fprintf(stderr,
+ "%s: option requires an argument -- %c\n",
+ __FILE__, optopt);
+ return (BADCH);
+ }
+ else /* white space */
+ optarg = nargv[optind];
+ place = EMSG;
+ ++optind;
+ }
+ return (optopt); /* dump back option letter */
+}
diff --git a/3rdParty/CAres/src/ares_getopt.h b/3rdParty/CAres/src/ares_getopt.h
new file mode 100644
index 0000000..63acb3b
--- /dev/null
+++ b/3rdParty/CAres/src/ares_getopt.h
@@ -0,0 +1,53 @@
+#ifndef ARES_GETOPT_H
+#define ARES_GETOPT_H
+
+/*
+ * Copyright (c) 1987-2001 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * A. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * B. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * C. Neither the names of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
+ * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+int ares_getopt(int nargc, char * const nargv[], const char *ostr);
+
+#undef optarg
+#undef optind
+#undef opterr
+#undef optopt
+#undef optreset
+
+#define optarg ares_optarg
+#define optind ares_optind
+#define opterr ares_opterr
+#define optopt ares_optopt
+#define optreset ares_optreset
+
+extern char *optarg;
+extern int optind;
+extern int opterr;
+extern int optopt;
+
+#endif /* ARES_GETOPT_H */
diff --git a/3rdParty/CAres/src/ares_getsock.c b/3rdParty/CAres/src/ares_getsock.c
new file mode 100644
index 0000000..a25b83a
--- /dev/null
+++ b/3rdParty/CAres/src/ares_getsock.c
@@ -0,0 +1,75 @@
+/* $Id: ares_getsock.c,v 1.8 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright (C) 2005 - 2007, Daniel Stenberg
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. M.I.T. makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+
+#include "ares.h"
+#include "ares_private.h"
+
+int ares_getsock(ares_channel channel,
+ int *s,
+ int numsocks) /* size of the 'socks' array */
+{
+ struct server_state *server;
+ int i;
+ int sockindex=0;
+ int bitmap = 0;
+ unsigned int setbits = 0xffffffff;
+
+ ares_socket_t *socks = (ares_socket_t *)s;
+
+ /* Are there any active queries? */
+ int active_queries = !ares__is_list_empty(&(channel->all_queries));
+
+ for (i = 0;
+ (i < channel->nservers) && (sockindex < ARES_GETSOCK_MAXNUM);
+ i++)
+ {
+ server = &channel->servers[i];
+ /* We only need to register interest in UDP sockets if we have
+ * outstanding queries.
+ */
+ if (active_queries && server->udp_socket != ARES_SOCKET_BAD)
+ {
+ if(sockindex >= numsocks)
+ break;
+ socks[sockindex] = server->udp_socket;
+ bitmap |= ARES_GETSOCK_READABLE(setbits, sockindex);
+ sockindex++;
+ }
+ /* We always register for TCP events, because we want to know
+ * when the other side closes the connection, so we don't waste
+ * time trying to use a broken connection.
+ */
+ if (server->tcp_socket != ARES_SOCKET_BAD)
+ {
+ if(sockindex >= numsocks)
+ break;
+ socks[sockindex] = server->tcp_socket;
+ bitmap |= ARES_GETSOCK_READABLE(setbits, sockindex);
+
+ if (server->qhead && active_queries)
+ /* then the tcp socket is also writable! */
+ bitmap |= ARES_GETSOCK_WRITABLE(setbits, sockindex);
+
+ sockindex++;
+ }
+ }
+ return bitmap;
+}
diff --git a/3rdParty/CAres/src/ares_init.c b/3rdParty/CAres/src/ares_init.c
new file mode 100644
index 0000000..cb541af
--- /dev/null
+++ b/3rdParty/CAres/src/ares_init.c
@@ -0,0 +1,1582 @@
+/* $Id: ares_init.c,v 1.103 2009-11-18 10:33:54 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ * Copyright (C) 2007-2009 by Daniel Stenberg
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef USE_WINSOCK
+#include <iphlpapi.h>
+#endif
+
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+
+#ifdef HAVE_ARPA_INET_H
+#include <arpa/inet.h>
+#endif
+
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <time.h>
+#include <errno.h>
+#include "ares.h"
+#include "inet_net_pton.h"
+#include "ares_library_init.h"
+#include "ares_private.h"
+
+#ifdef WATT32
+#undef WIN32 /* Redefined in MingW/MSVC headers */
+#endif
+
+static int init_by_options(ares_channel channel, const struct ares_options *options,
+ int optmask);
+static int init_by_environment(ares_channel channel);
+static int init_by_resolv_conf(ares_channel channel);
+static int init_by_defaults(ares_channel channel);
+
+#ifndef WATT32
+static int config_nameserver(struct server_state **servers, int *nservers,
+ char *str);
+#endif
+static int set_search(ares_channel channel, const char *str);
+static int set_options(ares_channel channel, const char *str);
+static const char *try_option(const char *p, const char *q, const char *opt);
+static int init_id_key(rc4_key* key,int key_data_len);
+
+#if !defined(WIN32) && !defined(WATT32)
+static int sortlist_alloc(struct apattern **sortlist, int *nsort, struct apattern *pat);
+static int ip_addr(const char *s, int len, struct in_addr *addr);
+static void natural_mask(struct apattern *pat);
+static int config_domain(ares_channel channel, char *str);
+static int config_lookup(ares_channel channel, const char *str,
+ const char *bindch, const char *filech);
+static int config_sortlist(struct apattern **sortlist, int *nsort,
+ const char *str);
+static char *try_config(char *s, const char *opt);
+#endif
+
+#define ARES_CONFIG_CHECK(x) (x->lookups && x->nsort > -1 && \
+ x->nservers > -1 && \
+ x->ndomains > -1 && \
+ x->ndots > -1 && x->timeout > -1 && \
+ x->tries > -1)
+
+int ares_init(ares_channel *channelptr)
+{
+ return ares_init_options(channelptr, NULL, 0);
+}
+
+int ares_init_options(ares_channel *channelptr, struct ares_options *options,
+ int optmask)
+{
+ ares_channel channel;
+ int i;
+ int status = ARES_SUCCESS;
+ struct server_state *server;
+ struct timeval now;
+
+#ifdef CURLDEBUG
+ const char *env = getenv("CARES_MEMDEBUG");
+
+ if (env)
+ curl_memdebug(env);
+ env = getenv("CARES_MEMLIMIT");
+ if (env)
+ curl_memlimit(atoi(env));
+#endif
+
+ if (ares_library_initialized() != ARES_SUCCESS)
+ return ARES_ENOTINITIALIZED;
+
+ channel = malloc(sizeof(struct ares_channeldata));
+ if (!channel) {
+ *channelptr = NULL;
+ return ARES_ENOMEM;
+ }
+
+ now = ares__tvnow();
+
+ /* Set everything to distinguished values so we know they haven't
+ * been set yet.
+ */
+ channel->flags = -1;
+ channel->timeout = -1;
+ channel->tries = -1;
+ channel->ndots = -1;
+ channel->rotate = -1;
+ channel->udp_port = -1;
+ channel->tcp_port = -1;
+ channel->socket_send_buffer_size = -1;
+ channel->socket_receive_buffer_size = -1;
+ channel->nservers = -1;
+ channel->ndomains = -1;
+ channel->nsort = -1;
+ channel->tcp_connection_generation = 0;
+ channel->lookups = NULL;
+ channel->domains = NULL;
+ channel->sortlist = NULL;
+ channel->servers = NULL;
+ channel->sock_state_cb = NULL;
+ channel->sock_state_cb_data = NULL;
+ channel->sock_create_cb = NULL;
+ channel->sock_create_cb_data = NULL;
+
+ channel->last_server = 0;
+ channel->last_timeout_processed = (time_t)now.tv_sec;
+
+ /* Initialize our lists of queries */
+ ares__init_list_head(&(channel->all_queries));
+ for (i = 0; i < ARES_QID_TABLE_SIZE; i++)
+ {
+ ares__init_list_head(&(channel->queries_by_qid[i]));
+ }
+ for (i = 0; i < ARES_TIMEOUT_TABLE_SIZE; i++)
+ {
+ ares__init_list_head(&(channel->queries_by_timeout[i]));
+ }
+
+ /* Initialize configuration by each of the four sources, from highest
+ * precedence to lowest.
+ */
+
+ if (status == ARES_SUCCESS) {
+ status = init_by_options(channel, options, optmask);
+ if (status != ARES_SUCCESS)
+ DEBUGF(fprintf(stderr, "Error: init_by_options failed: %s\n",
+ ares_strerror(status)));
+ }
+ if (status == ARES_SUCCESS) {
+ status = init_by_environment(channel);
+ if (status != ARES_SUCCESS)
+ DEBUGF(fprintf(stderr, "Error: init_by_environment failed: %s\n",
+ ares_strerror(status)));
+ }
+ if (status == ARES_SUCCESS) {
+ status = init_by_resolv_conf(channel);
+ if (status != ARES_SUCCESS)
+ DEBUGF(fprintf(stderr, "Error: init_by_resolv_conf failed: %s\n",
+ ares_strerror(status)));
+ }
+
+ /*
+ * No matter what failed or succeeded, seed defaults to provide
+ * useful behavior for things that we missed.
+ */
+ status = init_by_defaults(channel);
+ if (status != ARES_SUCCESS)
+ DEBUGF(fprintf(stderr, "Error: init_by_defaults failed: %s\n",
+ ares_strerror(status)));
+
+ /* Generate random key */
+
+ if (status == ARES_SUCCESS) {
+ status = init_id_key(&channel->id_key, ARES_ID_KEY_LEN);
+ if (status == ARES_SUCCESS)
+ channel->next_id = ares__generate_new_id(&channel->id_key);
+ else
+ DEBUGF(fprintf(stderr, "Error: init_id_key failed: %s\n",
+ ares_strerror(status)));
+ }
+
+ if (status != ARES_SUCCESS)
+ {
+ /* Something failed; clean up memory we may have allocated. */
+ if (channel->servers)
+ free(channel->servers);
+ if (channel->domains)
+ {
+ for (i = 0; i < channel->ndomains; i++)
+ free(channel->domains[i]);
+ free(channel->domains);
+ }
+ if (channel->sortlist)
+ free(channel->sortlist);
+ if(channel->lookups)
+ free(channel->lookups);
+ free(channel);
+ return status;
+ }
+
+ /* Trim to one server if ARES_FLAG_PRIMARY is set. */
+ if ((channel->flags & ARES_FLAG_PRIMARY) && channel->nservers > 1)
+ channel->nservers = 1;
+
+ /* Initialize server states. */
+ for (i = 0; i < channel->nservers; i++)
+ {
+ server = &channel->servers[i];
+ server->udp_socket = ARES_SOCKET_BAD;
+ server->tcp_socket = ARES_SOCKET_BAD;
+ server->tcp_connection_generation = ++channel->tcp_connection_generation;
+ server->tcp_lenbuf_pos = 0;
+ server->tcp_buffer = NULL;
+ server->qhead = NULL;
+ server->qtail = NULL;
+ ares__init_list_head(&(server->queries_to_server));
+ server->channel = channel;
+ server->is_broken = 0;
+ }
+
+ *channelptr = channel;
+ return ARES_SUCCESS;
+}
+
+/* ares_dup() duplicates a channel handle with all its options and returns a
+ new channel handle */
+int ares_dup(ares_channel *dest, ares_channel src)
+{
+ struct ares_options opts;
+ int rc;
+ int optmask;
+
+ *dest = NULL; /* in case of failure return NULL explicitly */
+
+ /* First get the options supported by the old ares_save_options() function,
+ which is most of them */
+ rc = ares_save_options(src, &opts, &optmask);
+ if(rc)
+ return rc;
+
+ /* Then create the new channel with those options */
+ rc = ares_init_options(dest, &opts, optmask);
+
+ /* destroy the options copy to not leak any memory */
+ ares_destroy_options(&opts);
+
+ if(rc)
+ return rc;
+
+ /* Now clone the options that ares_save_options() doesn't support. */
+ (*dest)->sock_create_cb = src->sock_create_cb;
+ (*dest)->sock_create_cb_data = src->sock_create_cb_data;
+
+
+ return ARES_SUCCESS; /* everything went fine */
+
+}
+
+/* Save options from initialized channel */
+int ares_save_options(ares_channel channel, struct ares_options *options,
+ int *optmask)
+{
+ int i;
+
+ /* Zero everything out */
+ memset(options, 0, sizeof(struct ares_options));
+
+ if (!ARES_CONFIG_CHECK(channel))
+ return ARES_ENODATA;
+
+ /* Traditionally the optmask wasn't saved in the channel struct so it was
+ recreated here. ROTATE is the first option that has no struct field of
+ its own in the public config struct */
+ (*optmask) = (ARES_OPT_FLAGS|ARES_OPT_TRIES|ARES_OPT_NDOTS|
+ ARES_OPT_UDP_PORT|ARES_OPT_TCP_PORT|ARES_OPT_SOCK_STATE_CB|
+ ARES_OPT_SERVERS|ARES_OPT_DOMAINS|ARES_OPT_LOOKUPS|
+ ARES_OPT_SORTLIST|ARES_OPT_TIMEOUTMS) |
+ (channel->optmask & ARES_OPT_ROTATE);
+
+ /* Copy easy stuff */
+ options->flags = channel->flags;
+
+ /* We return full millisecond resolution but that's only because we don't
+ set the ARES_OPT_TIMEOUT anymore, only the new ARES_OPT_TIMEOUTMS */
+ options->timeout = channel->timeout;
+ options->tries = channel->tries;
+ options->ndots = channel->ndots;
+ options->udp_port = (unsigned short)channel->udp_port;
+ options->tcp_port = (unsigned short)channel->tcp_port;
+ options->sock_state_cb = channel->sock_state_cb;
+ options->sock_state_cb_data = channel->sock_state_cb_data;
+
+ /* Copy servers */
+ if (channel->nservers) {
+ options->servers =
+ malloc(channel->nservers * sizeof(struct server_state));
+ if (!options->servers && channel->nservers != 0)
+ return ARES_ENOMEM;
+ for (i = 0; i < channel->nservers; i++)
+ options->servers[i] = channel->servers[i].addr;
+ }
+ options->nservers = channel->nservers;
+
+ /* copy domains */
+ if (channel->ndomains) {
+ options->domains = malloc(channel->ndomains * sizeof(char *));
+ if (!options->domains)
+ return ARES_ENOMEM;
+
+ for (i = 0; i < channel->ndomains; i++)
+ {
+ options->ndomains = i;
+ options->domains[i] = strdup(channel->domains[i]);
+ if (!options->domains[i])
+ return ARES_ENOMEM;
+ }
+ }
+ options->ndomains = channel->ndomains;
+
+ /* copy lookups */
+ if (channel->lookups) {
+ options->lookups = strdup(channel->lookups);
+ if (!options->lookups && channel->lookups)
+ return ARES_ENOMEM;
+ }
+
+ /* copy sortlist */
+ if (channel->nsort) {
+ options->sortlist = malloc(channel->nsort * sizeof(struct apattern));
+ if (!options->sortlist)
+ return ARES_ENOMEM;
+ for (i = 0; i < channel->nsort; i++)
+ {
+ memcpy(&(options->sortlist[i]), &(channel->sortlist[i]),
+ sizeof(struct apattern));
+ }
+ }
+ options->nsort = channel->nsort;
+
+ return ARES_SUCCESS;
+}
+
+static int init_by_options(ares_channel channel,
+ const struct ares_options *options,
+ int optmask)
+{
+ int i;
+
+ /* Easy stuff. */
+ if ((optmask & ARES_OPT_FLAGS) && channel->flags == -1)
+ channel->flags = options->flags;
+ if ((optmask & ARES_OPT_TIMEOUTMS) && channel->timeout == -1)
+ channel->timeout = options->timeout;
+ else if ((optmask & ARES_OPT_TIMEOUT) && channel->timeout == -1)
+ channel->timeout = options->timeout * 1000;
+ if ((optmask & ARES_OPT_TRIES) && channel->tries == -1)
+ channel->tries = options->tries;
+ if ((optmask & ARES_OPT_NDOTS) && channel->ndots == -1)
+ channel->ndots = options->ndots;
+ if ((optmask & ARES_OPT_ROTATE) && channel->rotate == -1)
+ channel->rotate = 1;
+ if ((optmask & ARES_OPT_UDP_PORT) && channel->udp_port == -1)
+ channel->udp_port = options->udp_port;
+ if ((optmask & ARES_OPT_TCP_PORT) && channel->tcp_port == -1)
+ channel->tcp_port = options->tcp_port;
+ if ((optmask & ARES_OPT_SOCK_STATE_CB) && channel->sock_state_cb == NULL)
+ {
+ channel->sock_state_cb = options->sock_state_cb;
+ channel->sock_state_cb_data = options->sock_state_cb_data;
+ }
+ if ((optmask & ARES_OPT_SOCK_SNDBUF)
+ && channel->socket_send_buffer_size == -1)
+ channel->socket_send_buffer_size = options->socket_send_buffer_size;
+ if ((optmask & ARES_OPT_SOCK_RCVBUF)
+ && channel->socket_receive_buffer_size == -1)
+ channel->socket_receive_buffer_size = options->socket_receive_buffer_size;
+
+ /* Copy the servers, if given. */
+ if ((optmask & ARES_OPT_SERVERS) && channel->nservers == -1)
+ {
+ /* Avoid zero size allocations at any cost */
+ if (options->nservers > 0)
+ {
+ channel->servers =
+ malloc(options->nservers * sizeof(struct server_state));
+ if (!channel->servers)
+ return ARES_ENOMEM;
+ for (i = 0; i < options->nservers; i++)
+ channel->servers[i].addr = options->servers[i];
+ }
+ channel->nservers = options->nservers;
+ }
+
+ /* Copy the domains, if given. Keep channel->ndomains consistent so
+ * we can clean up in case of error.
+ */
+ if ((optmask & ARES_OPT_DOMAINS) && channel->ndomains == -1)
+ {
+ /* Avoid zero size allocations at any cost */
+ if (options->ndomains > 0)
+ {
+ channel->domains = malloc(options->ndomains * sizeof(char *));
+ if (!channel->domains)
+ return ARES_ENOMEM;
+ for (i = 0; i < options->ndomains; i++)
+ {
+ channel->ndomains = i;
+ channel->domains[i] = strdup(options->domains[i]);
+ if (!channel->domains[i])
+ return ARES_ENOMEM;
+ }
+ }
+ channel->ndomains = options->ndomains;
+ }
+
+ /* Set lookups, if given. */
+ if ((optmask & ARES_OPT_LOOKUPS) && !channel->lookups)
+ {
+ channel->lookups = strdup(options->lookups);
+ if (!channel->lookups)
+ return ARES_ENOMEM;
+ }
+
+ /* copy sortlist */
+ if ((optmask & ARES_OPT_SORTLIST) && channel->nsort == -1)
+ {
+ channel->sortlist = malloc(options->nsort * sizeof(struct apattern));
+ if (!channel->sortlist)
+ return ARES_ENOMEM;
+ for (i = 0; i < options->nsort; i++)
+ {
+ memcpy(&(channel->sortlist[i]), &(options->sortlist[i]),
+ sizeof(struct apattern));
+ }
+ channel->nsort = options->nsort;
+ }
+
+ channel->optmask = optmask;
+
+ return ARES_SUCCESS;
+}
+
+static int init_by_environment(ares_channel channel)
+{
+ const char *localdomain, *res_options;
+ int status;
+
+ localdomain = getenv("LOCALDOMAIN");
+ if (localdomain && channel->ndomains == -1)
+ {
+ status = set_search(channel, localdomain);
+ if (status != ARES_SUCCESS)
+ return status;
+ }
+
+ res_options = getenv("RES_OPTIONS");
+ if (res_options)
+ {
+ status = set_options(channel, res_options);
+ if (status != ARES_SUCCESS)
+ return status;
+ }
+
+ return ARES_SUCCESS;
+}
+
+#ifdef WIN32
+/*
+ * Warning: returns a dynamically allocated buffer, the user MUST
+ * use free() if the function returns 1
+ */
+static int get_res_nt(HKEY hKey, const char *subkey, char **obuf)
+{
+ /* Test for the size we need */
+ DWORD size = 0;
+ int result;
+
+ result = RegQueryValueEx(hKey, subkey, 0, NULL, NULL, &size);
+ if ((result != ERROR_SUCCESS && result != ERROR_MORE_DATA) || !size)
+ return 0;
+ *obuf = malloc(size+1);
+ if (!*obuf)
+ return 0;
+
+ if (RegQueryValueEx(hKey, subkey, 0, NULL,
+ (LPBYTE)*obuf, &size) != ERROR_SUCCESS)
+ {
+ free(*obuf);
+ return 0;
+ }
+ if (size == 1)
+ {
+ free(*obuf);
+ return 0;
+ }
+ return 1;
+}
+
+static int get_res_interfaces_nt(HKEY hKey, const char *subkey, char **obuf)
+{
+ char enumbuf[39]; /* GUIDs are 38 chars + 1 for NULL */
+ DWORD enum_size = 39;
+ int idx = 0;
+ HKEY hVal;
+
+ while (RegEnumKeyEx(hKey, idx++, enumbuf, &enum_size, 0,
+ NULL, NULL, NULL) != ERROR_NO_MORE_ITEMS)
+ {
+ int rc;
+
+ enum_size = 39;
+ if (RegOpenKeyEx(hKey, enumbuf, 0, KEY_QUERY_VALUE, &hVal) !=
+ ERROR_SUCCESS)
+ continue;
+ rc = get_res_nt(hVal, subkey, obuf);
+ RegCloseKey(hVal);
+ if (rc)
+ return 1;
+ }
+ return 0;
+}
+
+static int get_iphlpapi_dns_info (char *ret_buf, size_t ret_size)
+{
+ FIXED_INFO *fi, *newfi;
+ DWORD size = sizeof (*fi);
+ IP_ADDR_STRING *ipAddr;
+ int i, count = 0;
+ int debug = 0;
+ size_t ip_size = sizeof("255.255.255.255,")-1;
+ size_t left = ret_size;
+ char *ret = ret_buf;
+ HRESULT res;
+
+ fi = malloc(size);
+ if (!fi)
+ return 0;
+
+ res = (*ares_fpGetNetworkParams) (fi, &size);
+ if ((res != ERROR_BUFFER_OVERFLOW) && (res != ERROR_SUCCESS))
+ goto quit;
+
+ newfi = realloc(fi, size);
+ if (!newfi)
+ goto quit;
+
+ fi = newfi;
+ res = (*ares_fpGetNetworkParams) (fi, &size);
+ if (res != ERROR_SUCCESS)
+ goto quit;
+
+ if (debug)
+ {
+ printf ("Host Name: %s\n", fi->HostName);
+ printf ("Domain Name: %s\n", fi->DomainName);
+ printf ("DNS Servers:\n"
+ " %s (primary)\n", fi->DnsServerList.IpAddress.String);
+ }
+ if (strlen(fi->DnsServerList.IpAddress.String) > 0 &&
+ inet_addr(fi->DnsServerList.IpAddress.String) != INADDR_NONE &&
+ left > ip_size)
+ {
+ ret += sprintf (ret, "%s,", fi->DnsServerList.IpAddress.String);
+ left -= ret - ret_buf;
+ count++;
+ }
+
+ for (i = 0, ipAddr = fi->DnsServerList.Next; ipAddr && left > ip_size;
+ ipAddr = ipAddr->Next, i++)
+ {
+ if (inet_addr(ipAddr->IpAddress.String) != INADDR_NONE)
+ {
+ ret += sprintf (ret, "%s,", ipAddr->IpAddress.String);
+ left -= ret - ret_buf;
+ count++;
+ }
+ if (debug)
+ printf (" %s (secondary %d)\n", ipAddr->IpAddress.String, i+1);
+ }
+
+quit:
+ if (fi)
+ free(fi);
+
+ if (debug && left <= ip_size)
+ printf ("Too many nameservers. Truncating to %d addressess", count);
+ if (ret > ret_buf)
+ ret[-1] = '\0';
+ return count;
+}
+#endif
+
+static int init_by_resolv_conf(ares_channel channel)
+{
+#ifndef WATT32
+ char *line = NULL;
+#endif
+ int status = -1, nservers = 0, nsort = 0;
+ struct server_state *servers = NULL;
+ struct apattern *sortlist = NULL;
+
+#ifdef WIN32
+
+ /*
+ NameServer info via IPHLPAPI (IP helper API):
+ GetNetworkParams() should be the trusted source for this.
+ Available in Win-98/2000 and later. If that fail, fall-back to
+ registry information.
+
+ NameServer Registry:
+
+ On Windows 9X, the DNS server can be found in:
+HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\MSTCP\NameServer
+
+ On Windows NT/2000/XP/2003:
+HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\NameServer
+ or
+HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\DhcpNameServer
+ or
+HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\{AdapterID}\
+NameServer
+ or
+HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\{AdapterID}\
+DhcpNameServer
+ */
+
+ HKEY mykey;
+ HKEY subkey;
+ DWORD data_type;
+ DWORD bytes;
+ DWORD result;
+ char buf[256];
+
+ if (channel->nservers > -1) /* don't override ARES_OPT_SERVER */
+ return ARES_SUCCESS;
+
+ if (get_iphlpapi_dns_info(buf,sizeof(buf)) > 0)
+ {
+ status = config_nameserver(&servers, &nservers, buf);
+ if (status == ARES_SUCCESS)
+ goto okay;
+ }
+
+ if (IS_NT())
+ {
+ if (RegOpenKeyEx(
+ HKEY_LOCAL_MACHINE, WIN_NS_NT_KEY, 0,
+ KEY_READ, &mykey
+ ) == ERROR_SUCCESS)
+ {
+ RegOpenKeyEx(mykey, "Interfaces", 0,
+ KEY_QUERY_VALUE|KEY_ENUMERATE_SUB_KEYS, &subkey);
+ if (get_res_nt(mykey, NAMESERVER, &line))
+ {
+ status = config_nameserver(&servers, &nservers, line);
+ free(line);
+ }
+ else if (get_res_nt(mykey, DHCPNAMESERVER, &line))
+ {
+ status = config_nameserver(&servers, &nservers, line);
+ free(line);
+ }
+ /* Try the interfaces */
+ else if (get_res_interfaces_nt(subkey, NAMESERVER, &line))
+ {
+ status = config_nameserver(&servers, &nservers, line);
+ free(line);
+ }
+ else if (get_res_interfaces_nt(subkey, DHCPNAMESERVER, &line))
+ {
+ status = config_nameserver(&servers, &nservers, line);
+ free(line);
+ }
+ RegCloseKey(subkey);
+ RegCloseKey(mykey);
+ }
+ }
+ else
+ {
+ if (RegOpenKeyEx(
+ HKEY_LOCAL_MACHINE, WIN_NS_9X, 0,
+ KEY_READ, &mykey
+ ) == ERROR_SUCCESS)
+ {
+ if ((result = RegQueryValueEx(
+ mykey, NAMESERVER, NULL, &data_type,
+ NULL, &bytes
+ )
+ ) == ERROR_SUCCESS ||
+ result == ERROR_MORE_DATA)
+ {
+ if (bytes)
+ {
+ line = malloc(bytes+1);
+ if (RegQueryValueEx(mykey, NAMESERVER, NULL, &data_type,
+ (unsigned char *)line, &bytes) ==
+ ERROR_SUCCESS)
+ {
+ status = config_nameserver(&servers, &nservers, line);
+ }
+ free(line);
+ }
+ }
+ }
+ RegCloseKey(mykey);
+ }
+
+ if (status == ARES_SUCCESS)
+ status = ARES_EOF;
+ else
+ /* Catch the case when all the above checks fail (which happens when there
+ is no network card or the cable is unplugged) */
+ status = ARES_EFILE;
+
+#elif defined(__riscos__)
+
+ /* Under RISC OS, name servers are listed in the
+ system variable Inet$Resolvers, space separated. */
+
+ line = getenv("Inet$Resolvers");
+ status = ARES_EOF;
+ if (line) {
+ char *resolvers = strdup(line), *pos, *space;
+
+ if (!resolvers)
+ return ARES_ENOMEM;
+
+ pos = resolvers;
+ do {
+ space = strchr(pos, ' ');
+ if (space)
+ *space = '\0';
+ status = config_nameserver(&servers, &nservers, pos);
+ if (status != ARES_SUCCESS)
+ break;
+ pos = space + 1;
+ } while (space);
+
+ if (status == ARES_SUCCESS)
+ status = ARES_EOF;
+
+ free(resolvers);
+ }
+
+#elif defined(WATT32)
+ int i;
+
+ sock_init();
+ for (i = 0; def_nameservers[i]; i++)
+ ;
+ if (i == 0)
+ return ARES_SUCCESS; /* use localhost DNS server */
+
+ nservers = i;
+ servers = calloc(i, sizeof(struct server_state));
+ if (!servers)
+ return ARES_ENOMEM;
+
+ for (i = 0; def_nameservers[i]; i++)
+ servers[i].addr.s_addr = htonl(def_nameservers[i]);
+ status = ARES_EOF;
+
+#else
+ {
+ char *p;
+ FILE *fp;
+ size_t linesize;
+ int error;
+
+ /* Don't read resolv.conf and friends if we don't have to */
+ if (ARES_CONFIG_CHECK(channel))
+ return ARES_SUCCESS;
+
+ fp = fopen(PATH_RESOLV_CONF, "r");
+ if (fp) {
+ while ((status = ares__read_line(fp, &line, &linesize)) == ARES_SUCCESS)
+ {
+ if ((p = try_config(line, "domain")) && channel->ndomains == -1)
+ status = config_domain(channel, p);
+ else if ((p = try_config(line, "lookup")) && !channel->lookups)
+ status = config_lookup(channel, p, "bind", "file");
+ else if ((p = try_config(line, "search")) && channel->ndomains == -1)
+ status = set_search(channel, p);
+ else if ((p = try_config(line, "nameserver")) && channel->nservers == -1)
+ status = config_nameserver(&servers, &nservers, p);
+ else if ((p = try_config(line, "sortlist")) && channel->nsort == -1)
+ status = config_sortlist(&sortlist, &nsort, p);
+ else if ((p = try_config(line, "options")))
+ status = set_options(channel, p);
+ else
+ status = ARES_SUCCESS;
+ if (status != ARES_SUCCESS)
+ break;
+ }
+ fclose(fp);
+ }
+ else {
+ error = ERRNO;
+ switch(error) {
+ case ENOENT:
+ case ESRCH:
+ status = ARES_EOF;
+ break;
+ default:
+ DEBUGF(fprintf(stderr, "fopen() failed with error: %d %s\n",
+ error, strerror(error)));
+ DEBUGF(fprintf(stderr, "Error opening file: %s\n", PATH_RESOLV_CONF));
+ status = ARES_EFILE;
+ }
+ }
+
+ if ((status == ARES_EOF) && (!channel->lookups)) {
+ /* Many systems (Solaris, Linux, BSD's) use nsswitch.conf */
+ fp = fopen("/etc/nsswitch.conf", "r");
+ if (fp) {
+ while ((status = ares__read_line(fp, &line, &linesize)) == ARES_SUCCESS)
+ {
+ if ((p = try_config(line, "hosts:")) && !channel->lookups)
+ status = config_lookup(channel, p, "dns", "files");
+ }
+ fclose(fp);
+ }
+ else {
+ error = ERRNO;
+ switch(error) {
+ case ENOENT:
+ case ESRCH:
+ status = ARES_EOF;
+ break;
+ default:
+ DEBUGF(fprintf(stderr, "fopen() failed with error: %d %s\n",
+ error, strerror(error)));
+ DEBUGF(fprintf(stderr, "Error opening file: %s\n", "/etc/nsswitch.conf"));
+ status = ARES_EFILE;
+ }
+ }
+ }
+
+ if ((status == ARES_EOF) && (!channel->lookups)) {
+ /* Linux / GNU libc 2.x and possibly others have host.conf */
+ fp = fopen("/etc/host.conf", "r");
+ if (fp) {
+ while ((status = ares__read_line(fp, &line, &linesize)) == ARES_SUCCESS)
+ {
+ if ((p = try_config(line, "order")) && !channel->lookups)
+ status = config_lookup(channel, p, "bind", "hosts");
+ }
+ fclose(fp);
+ }
+ else {
+ error = ERRNO;
+ switch(error) {
+ case ENOENT:
+ case ESRCH:
+ status = ARES_EOF;
+ break;
+ default:
+ DEBUGF(fprintf(stderr, "fopen() failed with error: %d %s\n",
+ error, strerror(error)));
+ DEBUGF(fprintf(stderr, "Error opening file: %s\n", "/etc/host.conf"));
+ status = ARES_EFILE;
+ }
+ }
+ }
+
+ if ((status == ARES_EOF) && (!channel->lookups)) {
+ /* Tru64 uses /etc/svc.conf */
+ fp = fopen("/etc/svc.conf", "r");
+ if (fp) {
+ while ((status = ares__read_line(fp, &line, &linesize)) == ARES_SUCCESS)
+ {
+ if ((p = try_config(line, "hosts=")) && !channel->lookups)
+ status = config_lookup(channel, p, "bind", "local");
+ }
+ fclose(fp);
+ }
+ else {
+ error = ERRNO;
+ switch(error) {
+ case ENOENT:
+ case ESRCH:
+ status = ARES_EOF;
+ break;
+ default:
+ DEBUGF(fprintf(stderr, "fopen() failed with error: %d %s\n",
+ error, strerror(error)));
+ DEBUGF(fprintf(stderr, "Error opening file: %s\n", "/etc/svc.conf"));
+ status = ARES_EFILE;
+ }
+ }
+ }
+
+ if(line)
+ free(line);
+ }
+
+#endif
+
+ /* Handle errors. */
+ if (status != ARES_EOF)
+ {
+ if (servers != NULL)
+ free(servers);
+ if (sortlist != NULL)
+ free(sortlist);
+ return status;
+ }
+
+ /* If we got any name server entries, fill them in. */
+#ifdef WIN32
+okay:
+#endif
+ if (servers)
+ {
+ channel->servers = servers;
+ channel->nservers = nservers;
+ }
+
+ /* If we got any sortlist entries, fill them in. */
+ if (sortlist)
+ {
+ channel->sortlist = sortlist;
+ channel->nsort = nsort;
+ }
+
+ return ARES_SUCCESS;
+}
+
+static int init_by_defaults(ares_channel channel)
+{
+ char *hostname = NULL;
+ int rc = ARES_SUCCESS;
+#ifdef HAVE_GETHOSTNAME
+ char *dot;
+#endif
+
+ if (channel->flags == -1)
+ channel->flags = 0;
+ if (channel->timeout == -1)
+ channel->timeout = DEFAULT_TIMEOUT;
+ if (channel->tries == -1)
+ channel->tries = DEFAULT_TRIES;
+ if (channel->ndots == -1)
+ channel->ndots = 1;
+ if (channel->rotate == -1)
+ channel->rotate = 0;
+ if (channel->udp_port == -1)
+ channel->udp_port = htons(NAMESERVER_PORT);
+ if (channel->tcp_port == -1)
+ channel->tcp_port = htons(NAMESERVER_PORT);
+
+ if (channel->nservers == -1) {
+ /* If nobody specified servers, try a local named. */
+ channel->servers = malloc(sizeof(struct server_state));
+ if (!channel->servers) {
+ rc = ARES_ENOMEM;
+ goto error;
+ }
+ channel->servers[0].addr.s_addr = htonl(INADDR_LOOPBACK);
+ channel->nservers = 1;
+ }
+
+#ifdef ENAMETOOLONG
+#define toolong(x) (x == -1) && ((ENAMETOOLONG == errno) || (EINVAL == errno))
+#else
+#define toolong(x) (x == -1) && (EINVAL == errno)
+#endif
+
+ if (channel->ndomains == -1) {
+ /* Derive a default domain search list from the kernel hostname,
+ * or set it to empty if the hostname isn't helpful.
+ */
+ size_t len = 64;
+ int res;
+ channel->ndomains = 0; /* default to none */
+
+#ifdef HAVE_GETHOSTNAME
+ hostname = malloc(len);
+ if(!hostname) {
+ rc = ARES_ENOMEM;
+ goto error;
+ }
+
+ do {
+ res = gethostname(hostname, len);
+
+ if(toolong(res)) {
+ char *p;
+ len *= 2;
+ p = realloc(hostname, len);
+ if(!p) {
+ rc = ARES_ENOMEM;
+ goto error;
+ }
+ hostname = p;
+ continue;
+ }
+ else if(res) {
+ rc = ARES_EBADNAME;
+ goto error;
+ }
+
+ } while(0);
+
+ dot = strchr(hostname, '.');
+ if (dot) {
+ /* a dot was found */
+ channel->domains = malloc(sizeof(char *));
+ if (!channel->domains) {
+ rc = ARES_ENOMEM;
+ goto error;
+ }
+ channel->domains[0] = strdup(dot + 1);
+ if (!channel->domains[0]) {
+ rc = ARES_ENOMEM;
+ goto error;
+ }
+ channel->ndomains = 1;
+ }
+#endif
+ }
+
+ if (channel->nsort == -1) {
+ channel->sortlist = NULL;
+ channel->nsort = 0;
+ }
+
+ if (!channel->lookups) {
+ channel->lookups = strdup("fb");
+ if (!channel->lookups)
+ rc = ARES_ENOMEM;
+ }
+
+ error:
+ if(rc) {
+ if(channel->servers)
+ free(channel->servers);
+
+ if(channel->domains && channel->domains[0])
+ free(channel->domains[0]);
+ if(channel->domains)
+ free(channel->domains);
+ if(channel->lookups)
+ free(channel->lookups);
+ }
+
+ if(hostname)
+ free(hostname);
+
+ return rc;
+}
+
+#if !defined(WIN32) && !defined(WATT32)
+static int config_domain(ares_channel channel, char *str)
+{
+ char *q;
+
+ /* Set a single search domain. */
+ q = str;
+ while (*q && !ISSPACE(*q))
+ q++;
+ *q = '\0';
+ return set_search(channel, str);
+}
+
+#if defined(__INTEL_COMPILER) && (__INTEL_COMPILER == 910) && \
+ defined(__OPTIMIZE__) && defined(__unix__) && defined(__i386__)
+ /* workaround icc 9.1 optimizer issue */
+# define vqualifier volatile
+#else
+# define vqualifier
+#endif
+
+static int config_lookup(ares_channel channel, const char *str,
+ const char *bindch, const char *filech)
+{
+ char lookups[3], *l;
+ const char *vqualifier p;
+
+ /* Set the lookup order. Only the first letter of each work
+ * is relevant, and it has to be "b" for DNS or "f" for the
+ * host file. Ignore everything else.
+ */
+ l = lookups;
+ p = str;
+ while (*p)
+ {
+ if ((*p == *bindch || *p == *filech) && l < lookups + 2) {
+ if (*p == *bindch) *l++ = 'b';
+ else *l++ = 'f';
+ }
+ while (*p && !ISSPACE(*p) && (*p != ','))
+ p++;
+ while (*p && (ISSPACE(*p) || (*p == ',')))
+ p++;
+ }
+ *l = '\0';
+ channel->lookups = strdup(lookups);
+ return (channel->lookups) ? ARES_SUCCESS : ARES_ENOMEM;
+}
+#endif /* !WIN32 & !WATT32 */
+
+#ifndef WATT32
+static int config_nameserver(struct server_state **servers, int *nservers,
+ char *str)
+{
+ struct in_addr addr;
+ struct server_state *newserv;
+ /* On Windows, there may be more than one nameserver specified in the same
+ * registry key, so we parse it as a space or comma seperated list.
+ */
+#ifdef WIN32
+ char *p = str;
+ char *begin = str;
+ int more = 1;
+ while (more)
+ {
+ more = 0;
+ while (*p && !ISSPACE(*p) && *p != ',')
+ p++;
+
+ if (*p)
+ {
+ *p = '\0';
+ more = 1;
+ }
+
+ /* Skip multiple spaces or trailing spaces */
+ if (!*begin)
+ {
+ begin = ++p;
+ continue;
+ }
+
+ /* This is the part that actually sets the nameserver */
+ addr.s_addr = inet_addr(begin);
+ if (addr.s_addr == INADDR_NONE)
+ continue;
+ newserv = realloc(*servers, (*nservers + 1) * sizeof(struct server_state));
+ if (!newserv)
+ return ARES_ENOMEM;
+ newserv[*nservers].addr = addr;
+ *servers = newserv;
+ (*nservers)++;
+
+ if (!more)
+ break;
+ begin = ++p;
+ }
+#else
+ /* Add a nameserver entry, if this is a valid address. */
+ addr.s_addr = inet_addr(str);
+ if (addr.s_addr == INADDR_NONE)
+ return ARES_SUCCESS;
+ newserv = realloc(*servers, (*nservers + 1) * sizeof(struct server_state));
+ if (!newserv)
+ return ARES_ENOMEM;
+ newserv[*nservers].addr = addr;
+ *servers = newserv;
+ (*nservers)++;
+#endif
+ return ARES_SUCCESS;
+}
+
+#ifndef WIN32
+static int config_sortlist(struct apattern **sortlist, int *nsort,
+ const char *str)
+{
+ struct apattern pat;
+ const char *q;
+
+ /* Add sortlist entries. */
+ while (*str && *str != ';')
+ {
+ int bits;
+ char ipbuf[16], ipbufpfx[32];
+ /* Find just the IP */
+ q = str;
+ while (*q && *q != '/' && *q != ';' && !ISSPACE(*q))
+ q++;
+ memcpy(ipbuf, str, (int)(q-str));
+ ipbuf[(int)(q-str)] = '\0';
+ /* Find the prefix */
+ if (*q == '/')
+ {
+ const char *str2 = q+1;
+ while (*q && *q != ';' && !ISSPACE(*q))
+ q++;
+ memcpy(ipbufpfx, str, (int)(q-str));
+ ipbufpfx[(int)(q-str)] = '\0';
+ str = str2;
+ }
+ else
+ ipbufpfx[0] = '\0';
+ /* Lets see if it is CIDR */
+ /* First we'll try IPv6 */
+ if ((bits = ares_inet_net_pton(AF_INET6, ipbufpfx[0] ? ipbufpfx : ipbuf,
+ &pat.addrV6,
+ sizeof(pat.addrV6))) > 0)
+ {
+ pat.type = PATTERN_CIDR;
+ pat.mask.bits = (unsigned short)bits;
+ pat.family = AF_INET6;
+ if (!sortlist_alloc(sortlist, nsort, &pat))
+ return ARES_ENOMEM;
+ }
+ if (ipbufpfx[0] &&
+ (bits = ares_inet_net_pton(AF_INET, ipbufpfx, &pat.addrV4,
+ sizeof(pat.addrV4))) > 0)
+ {
+ pat.type = PATTERN_CIDR;
+ pat.mask.bits = (unsigned short)bits;
+ pat.family = AF_INET;
+ if (!sortlist_alloc(sortlist, nsort, &pat))
+ return ARES_ENOMEM;
+ }
+ /* See if it is just a regular IP */
+ else if (ip_addr(ipbuf, (int)(q-str), &pat.addrV4) == 0)
+ {
+ if (ipbufpfx[0])
+ {
+ memcpy(ipbuf, str, (int)(q-str));
+ ipbuf[(int)(q-str)] = '\0';
+ if (ip_addr(ipbuf, (int)(q - str), &pat.mask.addr4) != 0)
+ natural_mask(&pat);
+ }
+ else
+ natural_mask(&pat);
+ pat.family = AF_INET;
+ pat.type = PATTERN_MASK;
+ if (!sortlist_alloc(sortlist, nsort, &pat))
+ return ARES_ENOMEM;
+ }
+ else
+ {
+ while (*q && *q != ';' && !ISSPACE(*q))
+ q++;
+ }
+ str = q;
+ while (ISSPACE(*str))
+ str++;
+ }
+
+ return ARES_SUCCESS;
+}
+#endif /* !WIN32 */
+#endif /* !WATT32 */
+
+static int set_search(ares_channel channel, const char *str)
+{
+ int n;
+ const char *p, *q;
+
+ if(channel->ndomains != -1) {
+ /* if we already have some domains present, free them first */
+ for(n=0; n < channel->ndomains; n++)
+ free(channel->domains[n]);
+ free(channel->domains);
+ channel->domains = NULL;
+ channel->ndomains = -1;
+ }
+
+ /* Count the domains given. */
+ n = 0;
+ p = str;
+ while (*p)
+ {
+ while (*p && !ISSPACE(*p))
+ p++;
+ while (ISSPACE(*p))
+ p++;
+ n++;
+ }
+
+ if (!n)
+ {
+ channel->ndomains = 0;
+ return ARES_SUCCESS;
+ }
+
+ channel->domains = malloc(n * sizeof(char *));
+ if (!channel->domains)
+ return ARES_ENOMEM;
+
+ /* Now copy the domains. */
+ n = 0;
+ p = str;
+ while (*p)
+ {
+ channel->ndomains = n;
+ q = p;
+ while (*q && !ISSPACE(*q))
+ q++;
+ channel->domains[n] = malloc(q - p + 1);
+ if (!channel->domains[n])
+ return ARES_ENOMEM;
+ memcpy(channel->domains[n], p, q - p);
+ channel->domains[n][q - p] = 0;
+ p = q;
+ while (ISSPACE(*p))
+ p++;
+ n++;
+ }
+ channel->ndomains = n;
+
+ return ARES_SUCCESS;
+}
+
+static int set_options(ares_channel channel, const char *str)
+{
+ const char *p, *q, *val;
+
+ p = str;
+ while (*p)
+ {
+ q = p;
+ while (*q && !ISSPACE(*q))
+ q++;
+ val = try_option(p, q, "ndots:");
+ if (val && channel->ndots == -1)
+ channel->ndots = atoi(val);
+ val = try_option(p, q, "retrans:");
+ if (val && channel->timeout == -1)
+ channel->timeout = atoi(val);
+ val = try_option(p, q, "retry:");
+ if (val && channel->tries == -1)
+ channel->tries = atoi(val);
+ val = try_option(p, q, "rotate");
+ if (val && channel->rotate == -1)
+ channel->rotate = 1;
+ p = q;
+ while (ISSPACE(*p))
+ p++;
+ }
+
+ return ARES_SUCCESS;
+}
+
+static const char *try_option(const char *p, const char *q, const char *opt)
+{
+ size_t len = strlen(opt);
+ return ((size_t)(q - p) >= len && !strncmp(p, opt, len)) ? &p[len] : NULL;
+}
+
+#if !defined(WIN32) && !defined(WATT32)
+static char *try_config(char *s, const char *opt)
+{
+ size_t len;
+ char *p;
+ char *q;
+
+ if (!s || !opt)
+ /* no line or no option */
+ return NULL;
+
+ /* trim line comment */
+ p = s;
+ while (*p && (*p != '#'))
+ p++;
+ *p = '\0';
+
+ /* trim trailing whitespace */
+ q = p - 1;
+ while ((q >= s) && ISSPACE(*q))
+ q--;
+ *++q = '\0';
+
+ /* skip leading whitespace */
+ p = s;
+ while (*p && ISSPACE(*p))
+ p++;
+
+ if (!*p)
+ /* empty line */
+ return NULL;
+
+ if ((len = strlen(opt)) == 0)
+ /* empty option */
+ return NULL;
+
+ if (strncmp(p, opt, len) != 0)
+ /* line and option do not match */
+ return NULL;
+
+ /* skip over given option name */
+ p += len;
+
+ if (!*p)
+ /* no option value */
+ return NULL;
+
+ if ((opt[len-1] != ':') && (opt[len-1] != '=') && !ISSPACE(*p))
+ /* whitespace between option name and value is mandatory
+ for given option names which do not end with ':' or '=' */
+ return NULL;
+
+ /* skip over whitespace */
+ while (*p && ISSPACE(*p))
+ p++;
+
+ if (!*p)
+ /* no option value */
+ return NULL;
+
+ /* return pointer to option value */
+ return p;
+}
+
+static int sortlist_alloc(struct apattern **sortlist, int *nsort,
+ struct apattern *pat)
+{
+ struct apattern *newsort;
+ newsort = realloc(*sortlist, (*nsort + 1) * sizeof(struct apattern));
+ if (!newsort)
+ return 0;
+ newsort[*nsort] = *pat;
+ *sortlist = newsort;
+ (*nsort)++;
+ return 1;
+}
+
+static int ip_addr(const char *ipbuf, int len, struct in_addr *addr)
+{
+
+ /* Four octets and three periods yields at most 15 characters. */
+ if (len > 15)
+ return -1;
+
+ addr->s_addr = inet_addr(ipbuf);
+ if (addr->s_addr == INADDR_NONE && strcmp(ipbuf, "255.255.255.255") != 0)
+ return -1;
+ return 0;
+}
+
+static void natural_mask(struct apattern *pat)
+{
+ struct in_addr addr;
+
+ /* Store a host-byte-order copy of pat in a struct in_addr. Icky,
+ * but portable.
+ */
+ addr.s_addr = ntohl(pat->addrV4.s_addr);
+
+ /* This is out of date in the CIDR world, but some people might
+ * still rely on it.
+ */
+ if (IN_CLASSA(addr.s_addr))
+ pat->mask.addr4.s_addr = htonl(IN_CLASSA_NET);
+ else if (IN_CLASSB(addr.s_addr))
+ pat->mask.addr4.s_addr = htonl(IN_CLASSB_NET);
+ else
+ pat->mask.addr4.s_addr = htonl(IN_CLASSC_NET);
+}
+#endif /* !WIN32 && !WATT32 */
+
+/* initialize an rc4 key. If possible a cryptographically secure random key
+ is generated using a suitable function (for example win32's RtlGenRandom as
+ described in
+ http://blogs.msdn.com/michael_howard/archive/2005/01/14/353379.aspx
+ otherwise the code defaults to cross-platform albeit less secure mechanism
+ using rand
+*/
+static void randomize_key(unsigned char* key,int key_data_len)
+{
+ int randomized = 0;
+ int counter=0;
+#ifdef WIN32
+ BOOLEAN res;
+ if (ares_fpSystemFunction036)
+ {
+ res = (*ares_fpSystemFunction036) (key, key_data_len);
+ if (res)
+ randomized = 1;
+ }
+#else /* !WIN32 */
+#ifdef RANDOM_FILE
+ FILE *f = fopen(RANDOM_FILE, "rb");
+ if(f) {
+ counter = fread(key, 1, key_data_len, f);
+ fclose(f);
+ }
+#endif
+#endif /* WIN32 */
+
+ if ( !randomized ) {
+ for (;counter<key_data_len;counter++)
+ key[counter]=(unsigned char)(rand() % 256);
+ }
+}
+
+static int init_id_key(rc4_key* key,int key_data_len)
+{
+ unsigned char index1;
+ unsigned char index2;
+ unsigned char* state;
+ short counter;
+ unsigned char *key_data_ptr = 0;
+
+ key_data_ptr = calloc(1,key_data_len);
+ if (!key_data_ptr)
+ return ARES_ENOMEM;
+
+ state = &key->state[0];
+ for(counter = 0; counter < 256; counter++)
+ /* unnecessary AND but it keeps some compilers happier */
+ state[counter] = (unsigned char)(counter & 0xff);
+ randomize_key(key->state,key_data_len);
+ key->x = 0;
+ key->y = 0;
+ index1 = 0;
+ index2 = 0;
+ for(counter = 0; counter < 256; counter++)
+ {
+ index2 = (unsigned char)((key_data_ptr[index1] + state[counter] +
+ index2) % 256);
+ ARES_SWAP_BYTE(&state[counter], &state[index2]);
+
+ index1 = (unsigned char)((index1 + 1) % key_data_len);
+ }
+ free(key_data_ptr);
+ return ARES_SUCCESS;
+}
+
+unsigned short ares__generate_new_id(rc4_key* key)
+{
+ unsigned short r=0;
+ ares__rc4(key, (unsigned char *)&r, sizeof(r));
+ return r;
+}
+
+void ares_set_socket_callback(ares_channel channel,
+ ares_sock_create_callback cb,
+ void *data)
+{
+ channel->sock_create_cb = cb;
+ channel->sock_create_cb_data = data;
+}
diff --git a/3rdParty/CAres/src/ares_ipv6.h b/3rdParty/CAres/src/ares_ipv6.h
new file mode 100644
index 0000000..18914d1
--- /dev/null
+++ b/3rdParty/CAres/src/ares_ipv6.h
@@ -0,0 +1,84 @@
+/* $Id: ares_ipv6.h,v 1.9 2009-05-02 02:36:48 yangtse Exp $ */
+
+/* Copyright (C) 2005 by Dominick Meglio
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#ifndef ARES_IPV6_H
+#define ARES_IPV6_H
+
+#ifndef HAVE_PF_INET6
+#define PF_INET6 AF_INET6
+#endif
+
+#if !defined(HAVE_STRUCT_IN6_ADDR) && !defined(s6_addr)
+struct in6_addr {
+ union {
+ unsigned char _S6_u8[16];
+ } _S6_un;
+};
+#define s6_addr _S6_un._S6_u8
+#endif
+
+#ifndef HAVE_STRUCT_SOCKADDR_IN6
+struct sockaddr_in6
+{
+ unsigned short sin6_family;
+ unsigned short sin6_port;
+ unsigned long sin6_flowinfo;
+ struct in6_addr sin6_addr;
+ unsigned int sin6_scope_id;
+};
+#endif
+
+#ifndef HAVE_STRUCT_ADDRINFO
+struct addrinfo
+{
+ int ai_flags;
+ int ai_family;
+ int ai_socktype;
+ int ai_protocol;
+ ares_socklen_t ai_addrlen; /* Follow rfc3493 struct addrinfo */
+ char *ai_canonname;
+ struct sockaddr *ai_addr;
+ struct addrinfo *ai_next;
+};
+#endif
+
+#ifndef NS_IN6ADDRSZ
+#if SIZEOF_STRUCT_IN6_ADDR == 0
+/* We cannot have it set to zero, so we pick a fixed value here */
+#define NS_IN6ADDRSZ 16
+#else
+#define NS_IN6ADDRSZ SIZEOF_STRUCT_IN6_ADDR
+#endif
+#endif
+
+#ifndef NS_INADDRSZ
+#define NS_INADDRSZ SIZEOF_STRUCT_IN_ADDR
+#endif
+
+#ifndef NS_INT16SZ
+#define NS_INT16SZ 2
+#endif
+
+#ifndef IF_NAMESIZE
+#ifdef IFNAMSIZ
+#define IF_NAMESIZE IFNAMSIZ
+#else
+#define IF_NAMESIZE 256
+#endif
+#endif
+
+#endif /* ARES_IPV6_H */
diff --git a/3rdParty/CAres/src/ares_library_init.c b/3rdParty/CAres/src/ares_library_init.c
new file mode 100644
index 0000000..049cfa4
--- /dev/null
+++ b/3rdParty/CAres/src/ares_library_init.c
@@ -0,0 +1,133 @@
+/* $Id: ares_library_init.c,v 1.11 2009-11-11 08:56:47 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ * Copyright (C) 2004-2009 by Daniel Stenberg
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#include "ares.h"
+#include "ares_library_init.h"
+#include "ares_private.h"
+
+/* library-private global and unique instance vars */
+
+#ifdef USE_WINSOCK
+fpGetNetworkParams_t ares_fpGetNetworkParams = ZERO_NULL;
+fpSystemFunction036_t ares_fpSystemFunction036 = ZERO_NULL;
+#endif
+
+/* library-private global vars with source visibility restricted to this file */
+
+static unsigned int ares_initialized;
+static int ares_init_flags;
+
+#ifdef USE_WINSOCK
+static HMODULE hnd_iphlpapi;
+static HMODULE hnd_advapi32;
+#endif
+
+
+static int ares_win32_init(void)
+{
+#ifdef USE_WINSOCK
+
+ hnd_iphlpapi = 0;
+ hnd_iphlpapi = LoadLibrary("iphlpapi.dll");
+ if (!hnd_iphlpapi)
+ return ARES_ELOADIPHLPAPI;
+
+ ares_fpGetNetworkParams = (fpGetNetworkParams_t)
+ GetProcAddress(hnd_iphlpapi, "GetNetworkParams");
+ if (!ares_fpGetNetworkParams)
+ {
+ FreeLibrary(hnd_iphlpapi);
+ return ARES_EADDRGETNETWORKPARAMS;
+ }
+
+ /*
+ * When advapi32.dll is unavailable or advapi32.dll has no SystemFunction036,
+ * also known as RtlGenRandom, which is the case for Windows versions prior
+ * to WinXP then c-ares uses portable rand() function. Then don't error here.
+ */
+
+ hnd_advapi32 = 0;
+ hnd_advapi32 = LoadLibrary("advapi32.dll");
+ if (hnd_advapi32)
+ {
+ ares_fpSystemFunction036 = (fpSystemFunction036_t)
+ GetProcAddress(hnd_advapi32, "SystemFunction036");
+ }
+
+#endif
+ return ARES_SUCCESS;
+}
+
+
+static void ares_win32_cleanup(void)
+{
+#ifdef USE_WINSOCK
+ if (hnd_advapi32)
+ FreeLibrary(hnd_advapi32);
+ if (hnd_iphlpapi)
+ FreeLibrary(hnd_iphlpapi);
+#endif
+}
+
+
+int ares_library_init(int flags)
+{
+ int res;
+
+ if (ares_initialized)
+ return ARES_SUCCESS;
+ ares_initialized++;
+
+ if (flags & ARES_LIB_INIT_WIN32)
+ {
+ res = ares_win32_init();
+ if (res != ARES_SUCCESS)
+ return res;
+ }
+
+ ares_init_flags = flags;
+
+ return ARES_SUCCESS;
+}
+
+
+void ares_library_cleanup(void)
+{
+ if (!ares_initialized)
+ return;
+ ares_initialized--;
+
+ if (ares_init_flags & ARES_LIB_INIT_WIN32)
+ ares_win32_cleanup();
+
+ ares_init_flags = ARES_LIB_INIT_NONE;
+}
+
+
+int ares_library_initialized(void)
+{
+#ifdef USE_WINSOCK
+ if (!ares_initialized)
+ return ARES_ENOTINITIALIZED;
+#endif
+ return ARES_SUCCESS;
+}
+
+
diff --git a/3rdParty/CAres/src/ares_library_init.h b/3rdParty/CAres/src/ares_library_init.h
new file mode 100644
index 0000000..a81d855
--- /dev/null
+++ b/3rdParty/CAres/src/ares_library_init.h
@@ -0,0 +1,40 @@
+#ifndef HEADER_CARES_LIBRARY_INIT_H
+#define HEADER_CARES_LIBRARY_INIT_H
+
+/* $Id: ares_library_init.h,v 1.5 2009-11-11 08:56:47 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ * Copyright (C) 2004-2009 by Daniel Stenberg
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef USE_WINSOCK
+
+#include <iphlpapi.h>
+
+typedef DWORD (WINAPI *fpGetNetworkParams_t) (FIXED_INFO*, DWORD*);
+typedef BOOLEAN (APIENTRY *fpSystemFunction036_t) (void*, ULONG);
+
+/* Forward-declaration of variables defined in ares_library_init.c */
+/* that are global and unique instances for whole c-ares library. */
+
+extern fpGetNetworkParams_t ares_fpGetNetworkParams;
+extern fpSystemFunction036_t ares_fpSystemFunction036;
+
+#endif /* USE_WINSOCK */
+
+#endif /* HEADER_CARES_LIBRARY_INIT_H */
+
diff --git a/3rdParty/CAres/src/ares_llist.c b/3rdParty/CAres/src/ares_llist.c
new file mode 100644
index 0000000..c820ed1
--- /dev/null
+++ b/3rdParty/CAres/src/ares_llist.c
@@ -0,0 +1,87 @@
+/* $Id: ares_llist.c,v 1.2 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#include "ares.h"
+#include "ares_private.h"
+
+/* Routines for managing doubly-linked circular linked lists with a
+ * dummy head.
+ */
+
+/* Initialize a new head node */
+void ares__init_list_head(struct list_node* head) {
+ head->prev = head;
+ head->next = head;
+ head->data = NULL;
+}
+
+/* Initialize a list node */
+void ares__init_list_node(struct list_node* node, void* d) {
+ node->prev = NULL;
+ node->next = NULL;
+ node->data = d;
+}
+
+/* Returns true iff the given list is empty */
+int ares__is_list_empty(struct list_node* head) {
+ return ((head->next == head) && (head->prev == head));
+}
+
+/* Inserts new_node before old_node */
+void ares__insert_in_list(struct list_node* new_node,
+ struct list_node* old_node) {
+ new_node->next = old_node;
+ new_node->prev = old_node->prev;
+ old_node->prev->next = new_node;
+ old_node->prev = new_node;
+}
+
+/* Removes the node from the list it's in, if any */
+void ares__remove_from_list(struct list_node* node) {
+ if (node->next != NULL) {
+ node->prev->next = node->next;
+ node->next->prev = node->prev;
+ node->prev = NULL;
+ node->next = NULL;
+ }
+}
+
+/* Swap the contents of two lists */
+void ares__swap_lists(struct list_node* head_a,
+ struct list_node* head_b) {
+ int is_a_empty = ares__is_list_empty(head_a);
+ int is_b_empty = ares__is_list_empty(head_b);
+ struct list_node old_a = *head_a;
+ struct list_node old_b = *head_b;
+
+ if (is_a_empty) {
+ ares__init_list_head(head_b);
+ } else {
+ *head_b = old_a;
+ old_a.next->prev = head_b;
+ old_a.prev->next = head_b;
+ }
+ if (is_b_empty) {
+ ares__init_list_head(head_a);
+ } else {
+ *head_a = old_b;
+ old_b.next->prev = head_a;
+ old_b.prev->next = head_a;
+ }
+}
diff --git a/3rdParty/CAres/src/ares_llist.h b/3rdParty/CAres/src/ares_llist.h
new file mode 100644
index 0000000..4875b3f
--- /dev/null
+++ b/3rdParty/CAres/src/ares_llist.h
@@ -0,0 +1,43 @@
+#ifndef __ARES_LLIST_H
+#define __ARES_LLIST_H
+
+/* $Id: ares_llist.h,v 1.1 2007-10-02 02:18:01 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+
+/* Node definition for circular, doubly-linked list */
+struct list_node {
+ struct list_node *prev;
+ struct list_node *next;
+ void* data;
+};
+
+void ares__init_list_head(struct list_node* head);
+
+void ares__init_list_node(struct list_node* node, void* d);
+
+int ares__is_list_empty(struct list_node* head);
+
+void ares__insert_in_list(struct list_node* new_node,
+ struct list_node* old_node);
+
+void ares__remove_from_list(struct list_node* node);
+
+void ares__swap_lists(struct list_node* head_a,
+ struct list_node* head_b);
+
+#endif /* __ARES_LLIST_H */
diff --git a/3rdParty/CAres/src/ares_mkquery.c b/3rdParty/CAres/src/ares_mkquery.c
new file mode 100644
index 0000000..04d2b6d
--- /dev/null
+++ b/3rdParty/CAres/src/ares_mkquery.c
@@ -0,0 +1,196 @@
+/* $Id: ares_mkquery.c,v 1.17 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include "ares.h"
+#include "ares_dns.h"
+#include "ares_private.h"
+
+/* Header format, from RFC 1035:
+ * 1 1 1 1 1 1
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
+ * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+ * | ID |
+ * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+ * |QR| Opcode |AA|TC|RD|RA| Z | RCODE |
+ * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+ * | QDCOUNT |
+ * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+ * | ANCOUNT |
+ * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+ * | NSCOUNT |
+ * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+ * | ARCOUNT |
+ * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+ *
+ * AA, TC, RA, and RCODE are only set in responses. Brief description
+ * of the remaining fields:
+ * ID Identifier to match responses with queries
+ * QR Query (0) or response (1)
+ * Opcode For our purposes, always QUERY
+ * RD Recursion desired
+ * Z Reserved (zero)
+ * QDCOUNT Number of queries
+ * ANCOUNT Number of answers
+ * NSCOUNT Number of name server records
+ * ARCOUNT Number of additional records
+ *
+ * Question format, from RFC 1035:
+ * 1 1 1 1 1 1
+ * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
+ * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+ * | |
+ * / QNAME /
+ * / /
+ * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+ * | QTYPE |
+ * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+ * | QCLASS |
+ * +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
+ *
+ * The query name is encoded as a series of labels, each represented
+ * as a one-byte length (maximum 63) followed by the text of the
+ * label. The list is terminated by a label of length zero (which can
+ * be thought of as the root domain).
+ */
+
+int ares_mkquery(const char *name, int dnsclass, int type, unsigned short id,
+ int rd, unsigned char **buf, int *buflen)
+{
+ int len;
+ unsigned char *q;
+ const char *p;
+
+ /* Set our results early, in case we bail out early with an error. */
+ *buflen = 0;
+ *buf = NULL;
+
+ /* Compute the length of the encoded name so we can check buflen.
+ * Start counting at 1 for the zero-length label at the end. */
+ len = 1;
+ for (p = name; *p; p++)
+ {
+ if (*p == '\\' && *(p + 1) != 0)
+ p++;
+ len++;
+ }
+ /* If there are n periods in the name, there are n + 1 labels, and
+ * thus n + 1 length fields, unless the name is empty or ends with a
+ * period. So add 1 unless name is empty or ends with a period.
+ */
+ if (*name && *(p - 1) != '.')
+ len++;
+
+ /* Immediately reject names that are longer than the maximum of 255
+ * bytes that's specified in RFC 1035 ("To simplify implementations,
+ * the total length of a domain name (i.e., label octets and label
+ * length octets) is restricted to 255 octets or less."). We aren't
+ * doing this just to be a stickler about RFCs. For names that are
+ * too long, 'dnscache' closes its TCP connection to us immediately
+ * (when using TCP) and ignores the request when using UDP, and
+ * BIND's named returns ServFail (TCP or UDP). Sending a request
+ * that we know will cause 'dnscache' to close the TCP connection is
+ * painful, since that makes any other outstanding requests on that
+ * connection fail. And sending a UDP request that we know
+ * 'dnscache' will ignore is bad because resources will be tied up
+ * until we time-out the request.
+ */
+ if (len > MAXCDNAME)
+ return ARES_EBADNAME;
+
+ *buflen = len + HFIXEDSZ + QFIXEDSZ;
+ *buf = malloc(*buflen);
+ if (!*buf)
+ return ARES_ENOMEM;
+
+ /* Set up the header. */
+ q = *buf;
+ memset(q, 0, HFIXEDSZ);
+ DNS_HEADER_SET_QID(q, id);
+ DNS_HEADER_SET_OPCODE(q, QUERY);
+ if (rd) {
+ DNS_HEADER_SET_RD(q, 1);
+ }
+ else {
+ DNS_HEADER_SET_RD(q, 0);
+ }
+ DNS_HEADER_SET_QDCOUNT(q, 1);
+
+ /* A name of "." is a screw case for the loop below, so adjust it. */
+ if (strcmp(name, ".") == 0)
+ name++;
+
+ /* Start writing out the name after the header. */
+ q += HFIXEDSZ;
+ while (*name)
+ {
+ if (*name == '.')
+ return ARES_EBADNAME;
+
+ /* Count the number of bytes in this label. */
+ len = 0;
+ for (p = name; *p && *p != '.'; p++)
+ {
+ if (*p == '\\' && *(p + 1) != 0)
+ p++;
+ len++;
+ }
+ if (len > MAXLABEL)
+ return ARES_EBADNAME;
+
+ /* Encode the length and copy the data. */
+ *q++ = (unsigned char)len;
+ for (p = name; *p && *p != '.'; p++)
+ {
+ if (*p == '\\' && *(p + 1) != 0)
+ p++;
+ *q++ = *p;
+ }
+
+ /* Go to the next label and repeat, unless we hit the end. */
+ if (!*p)
+ break;
+ name = p + 1;
+ }
+
+ /* Add the zero-length label at the end. */
+ *q++ = 0;
+
+ /* Finish off the question with the type and class. */
+ DNS_QUESTION_SET_TYPE(q, type);
+ DNS_QUESTION_SET_CLASS(q, dnsclass);
+
+ return ARES_SUCCESS;
+}
diff --git a/3rdParty/CAres/src/ares_parse_a_reply.c b/3rdParty/CAres/src/ares_parse_a_reply.c
new file mode 100644
index 0000000..801c193
--- /dev/null
+++ b/3rdParty/CAres/src/ares_parse_a_reply.c
@@ -0,0 +1,257 @@
+/* $Id: ares_parse_a_reply.c,v 1.20 2009-11-23 01:24:17 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_NETDB_H
+# include <netdb.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+# include <arpa/inet.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#ifdef HAVE_LIMITS_H
+# include <limits.h>
+#endif
+
+#include "ares.h"
+#include "ares_dns.h"
+#include "ares_private.h"
+
+int ares_parse_a_reply(const unsigned char *abuf, int alen,
+ struct hostent **host,
+ struct ares_addrttl *addrttls, int *naddrttls)
+{
+ unsigned int qdcount, ancount;
+ int status, i, rr_type, rr_class, rr_len, rr_ttl, naddrs;
+ int cname_ttl = INT_MAX; /* the TTL imposed by the CNAME chain */
+ int naliases;
+ long len;
+ const unsigned char *aptr;
+ char *hostname, *rr_name, *rr_data, **aliases;
+ struct in_addr *addrs;
+ struct hostent *hostent;
+ const int max_addr_ttls = (addrttls && naddrttls) ? *naddrttls : 0;
+
+ /* Set *host to NULL for all failure cases. */
+ if (host)
+ *host = NULL;
+ /* Same with *naddrttls. */
+ if (naddrttls)
+ *naddrttls = 0;
+
+ /* Give up if abuf doesn't have room for a header. */
+ if (alen < HFIXEDSZ)
+ return ARES_EBADRESP;
+
+ /* Fetch the question and answer count from the header. */
+ qdcount = DNS_HEADER_QDCOUNT(abuf);
+ ancount = DNS_HEADER_ANCOUNT(abuf);
+ if (qdcount != 1)
+ return ARES_EBADRESP;
+
+ /* Expand the name from the question, and skip past the question. */
+ aptr = abuf + HFIXEDSZ;
+ status = ares__expand_name_for_response(aptr, abuf, alen, &hostname, &len);
+ if (status != ARES_SUCCESS)
+ return status;
+ if (aptr + len + QFIXEDSZ > abuf + alen)
+ {
+ free(hostname);
+ return ARES_EBADRESP;
+ }
+ aptr += len + QFIXEDSZ;
+
+ if (host)
+ {
+ /* Allocate addresses and aliases; ancount gives an upper bound for
+ both. */
+ addrs = malloc(ancount * sizeof(struct in_addr));
+ if (!addrs)
+ {
+ free(hostname);
+ return ARES_ENOMEM;
+ }
+ aliases = malloc((ancount + 1) * sizeof(char *));
+ if (!aliases)
+ {
+ free(hostname);
+ free(addrs);
+ return ARES_ENOMEM;
+ }
+ }
+ else
+ {
+ addrs = NULL;
+ aliases = NULL;
+ }
+
+ naddrs = 0;
+ naliases = 0;
+
+ /* Examine each answer resource record (RR) in turn. */
+ for (i = 0; i < (int)ancount; i++)
+ {
+ /* Decode the RR up to the data field. */
+ status = ares__expand_name_for_response(aptr, abuf, alen, &rr_name, &len);
+ if (status != ARES_SUCCESS)
+ break;
+ aptr += len;
+ if (aptr + RRFIXEDSZ > abuf + alen)
+ {
+ status = ARES_EBADRESP;
+ break;
+ }
+ rr_type = DNS_RR_TYPE(aptr);
+ rr_class = DNS_RR_CLASS(aptr);
+ rr_len = DNS_RR_LEN(aptr);
+ rr_ttl = DNS_RR_TTL(aptr);
+ aptr += RRFIXEDSZ;
+
+ if (rr_class == C_IN && rr_type == T_A
+ && rr_len == sizeof(struct in_addr)
+ && strcasecmp(rr_name, hostname) == 0)
+ {
+ if (addrs)
+ {
+ if (aptr + sizeof(struct in_addr) > abuf + alen)
+ {
+ status = ARES_EBADRESP;
+ break;
+ }
+ memcpy(&addrs[naddrs], aptr, sizeof(struct in_addr));
+ }
+ if (naddrs < max_addr_ttls)
+ {
+ struct ares_addrttl * const at = &addrttls[naddrs];
+ if (aptr + sizeof(struct in_addr) > abuf + alen)
+ {
+ status = ARES_EBADRESP;
+ break;
+ }
+ memcpy(&at->ipaddr, aptr, sizeof(struct in_addr));
+ at->ttl = rr_ttl;
+ }
+ naddrs++;
+ status = ARES_SUCCESS;
+ }
+
+ if (rr_class == C_IN && rr_type == T_CNAME)
+ {
+ /* Record the RR name as an alias. */
+ if (aliases)
+ aliases[naliases] = rr_name;
+ else
+ free(rr_name);
+ naliases++;
+
+ /* Decode the RR data and replace the hostname with it. */
+ status = ares__expand_name_for_response(aptr, abuf, alen, &rr_data,
+ &len);
+ if (status != ARES_SUCCESS)
+ break;
+ free(hostname);
+ hostname = rr_data;
+
+ /* Take the min of the TTLs we see in the CNAME chain. */
+ if (cname_ttl > rr_ttl)
+ cname_ttl = rr_ttl;
+ }
+ else
+ free(rr_name);
+
+ aptr += rr_len;
+ if (aptr > abuf + alen)
+ {
+ status = ARES_EBADRESP;
+ break;
+ }
+ }
+
+ if (status == ARES_SUCCESS && naddrs == 0)
+ status = ARES_ENODATA;
+ if (status == ARES_SUCCESS)
+ {
+ /* We got our answer. */
+ if (naddrttls)
+ {
+ const int n = naddrs < max_addr_ttls ? naddrs : max_addr_ttls;
+ for (i = 0; i < n; i++)
+ {
+ /* Ensure that each A TTL is no larger than the CNAME TTL. */
+ if (addrttls[i].ttl > cname_ttl)
+ addrttls[i].ttl = cname_ttl;
+ }
+ *naddrttls = n;
+ }
+ if (aliases)
+ aliases[naliases] = NULL;
+ if (host)
+ {
+ /* Allocate memory to build the host entry. */
+ hostent = malloc(sizeof(struct hostent));
+ if (hostent)
+ {
+ hostent->h_addr_list = malloc((naddrs + 1) * sizeof(char *));
+ if (hostent->h_addr_list)
+ {
+ /* Fill in the hostent and return successfully. */
+ hostent->h_name = hostname;
+ hostent->h_aliases = aliases;
+ hostent->h_addrtype = AF_INET;
+ hostent->h_length = sizeof(struct in_addr);
+ for (i = 0; i < naddrs; i++)
+ hostent->h_addr_list[i] = (char *) &addrs[i];
+ hostent->h_addr_list[naddrs] = NULL;
+ *host = hostent;
+ return ARES_SUCCESS;
+ }
+ free(hostent);
+ }
+ status = ARES_ENOMEM;
+ }
+ }
+ if (aliases)
+ {
+ for (i = 0; i < naliases; i++)
+ free(aliases[i]);
+ free(aliases);
+ }
+ free(addrs);
+ free(hostname);
+ return status;
+}
diff --git a/3rdParty/CAres/src/ares_parse_aaaa_reply.c b/3rdParty/CAres/src/ares_parse_aaaa_reply.c
new file mode 100644
index 0000000..c2329cc
--- /dev/null
+++ b/3rdParty/CAres/src/ares_parse_aaaa_reply.c
@@ -0,0 +1,257 @@
+/* $Id: ares_parse_aaaa_reply.c,v 1.16 2009-11-23 01:24:17 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ * Copyright 2005 Dominick Meglio
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_NETDB_H
+# include <netdb.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+# include <arpa/inet.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#ifdef HAVE_LIMITS_H
+# include <limits.h>
+#endif
+
+#include "ares.h"
+#include "ares_dns.h"
+#include "inet_net_pton.h"
+#include "ares_private.h"
+
+int ares_parse_aaaa_reply(const unsigned char *abuf, int alen,
+ struct hostent **host, struct ares_addr6ttl *addrttls,
+ int *naddrttls)
+{
+ unsigned int qdcount, ancount;
+ int status, i, rr_type, rr_class, rr_len, rr_ttl, naddrs;
+ int cname_ttl = INT_MAX; /* the TTL imposed by the CNAME chain */
+ int naliases;
+ long len;
+ const unsigned char *aptr;
+ char *hostname, *rr_name, *rr_data, **aliases;
+ struct in6_addr *addrs;
+ struct hostent *hostent;
+ const int max_addr_ttls = (addrttls && naddrttls) ? *naddrttls : 0;
+
+ /* Set *host to NULL for all failure cases. */
+ if (host)
+ *host = NULL;
+ /* Same with *naddrttls. */
+ if (naddrttls)
+ *naddrttls = 0;
+
+ /* Give up if abuf doesn't have room for a header. */
+ if (alen < HFIXEDSZ)
+ return ARES_EBADRESP;
+
+ /* Fetch the question and answer count from the header. */
+ qdcount = DNS_HEADER_QDCOUNT(abuf);
+ ancount = DNS_HEADER_ANCOUNT(abuf);
+ if (qdcount != 1)
+ return ARES_EBADRESP;
+
+ /* Expand the name from the question, and skip past the question. */
+ aptr = abuf + HFIXEDSZ;
+ status = ares__expand_name_for_response(aptr, abuf, alen, &hostname, &len);
+ if (status != ARES_SUCCESS)
+ return status;
+ if (aptr + len + QFIXEDSZ > abuf + alen)
+ {
+ free(hostname);
+ return ARES_EBADRESP;
+ }
+ aptr += len + QFIXEDSZ;
+
+ /* Allocate addresses and aliases; ancount gives an upper bound for both. */
+ if (host)
+ {
+ addrs = malloc(ancount * sizeof(struct in6_addr));
+ if (!addrs)
+ {
+ free(hostname);
+ return ARES_ENOMEM;
+ }
+ aliases = malloc((ancount + 1) * sizeof(char *));
+ if (!aliases)
+ {
+ free(hostname);
+ free(addrs);
+ return ARES_ENOMEM;
+ }
+ }
+ else
+ {
+ addrs = NULL;
+ aliases = NULL;
+ }
+ naddrs = 0;
+ naliases = 0;
+
+ /* Examine each answer resource record (RR) in turn. */
+ for (i = 0; i < (int)ancount; i++)
+ {
+ /* Decode the RR up to the data field. */
+ status = ares__expand_name_for_response(aptr, abuf, alen, &rr_name, &len);
+ if (status != ARES_SUCCESS)
+ break;
+ aptr += len;
+ if (aptr + RRFIXEDSZ > abuf + alen)
+ {
+ status = ARES_EBADRESP;
+ break;
+ }
+ rr_type = DNS_RR_TYPE(aptr);
+ rr_class = DNS_RR_CLASS(aptr);
+ rr_len = DNS_RR_LEN(aptr);
+ rr_ttl = DNS_RR_TTL(aptr);
+ aptr += RRFIXEDSZ;
+
+ if (rr_class == C_IN && rr_type == T_AAAA
+ && rr_len == sizeof(struct in6_addr)
+ && strcasecmp(rr_name, hostname) == 0)
+ {
+ if (addrs)
+ {
+ if (aptr + sizeof(struct in6_addr) > abuf + alen)
+ {
+ status = ARES_EBADRESP;
+ break;
+ }
+ memcpy(&addrs[naddrs], aptr, sizeof(struct in6_addr));
+ }
+ if (naddrs < max_addr_ttls)
+ {
+ struct ares_addr6ttl * const at = &addrttls[naddrs];
+ if (aptr + sizeof(struct in6_addr) > abuf + alen)
+ {
+ status = ARES_EBADRESP;
+ break;
+ }
+ memcpy(&at->ip6addr, aptr, sizeof(struct in6_addr));
+ at->ttl = rr_ttl;
+ }
+ naddrs++;
+ status = ARES_SUCCESS;
+ }
+
+ if (rr_class == C_IN && rr_type == T_CNAME)
+ {
+ /* Record the RR name as an alias. */
+ if (aliases)
+ aliases[naliases] = rr_name;
+ else
+ free(rr_name);
+ naliases++;
+
+ /* Decode the RR data and replace the hostname with it. */
+ status = ares__expand_name_for_response(aptr, abuf, alen, &rr_data,
+ &len);
+ if (status != ARES_SUCCESS)
+ break;
+ free(hostname);
+ hostname = rr_data;
+
+ /* Take the min of the TTLs we see in the CNAME chain. */
+ if (cname_ttl > rr_ttl)
+ cname_ttl = rr_ttl;
+ }
+ else
+ free(rr_name);
+
+ aptr += rr_len;
+ if (aptr > abuf + alen)
+ {
+ status = ARES_EBADRESP;
+ break;
+ }
+ }
+
+ if (status == ARES_SUCCESS && naddrs == 0)
+ status = ARES_ENODATA;
+ if (status == ARES_SUCCESS)
+ {
+ /* We got our answer. */
+ if (naddrttls)
+ {
+ const int n = naddrs < max_addr_ttls ? naddrs : max_addr_ttls;
+ for (i = 0; i < n; i++)
+ {
+ /* Ensure that each A TTL is no larger than the CNAME TTL. */
+ if (addrttls[i].ttl > cname_ttl)
+ addrttls[i].ttl = cname_ttl;
+ }
+ *naddrttls = n;
+ }
+ if (aliases)
+ aliases[naliases] = NULL;
+ if (host)
+ {
+ /* Allocate memory to build the host entry. */
+ hostent = malloc(sizeof(struct hostent));
+ if (hostent)
+ {
+ hostent->h_addr_list = malloc((naddrs + 1) * sizeof(char *));
+ if (hostent->h_addr_list)
+ {
+ /* Fill in the hostent and return successfully. */
+ hostent->h_name = hostname;
+ hostent->h_aliases = aliases;
+ hostent->h_addrtype = AF_INET6;
+ hostent->h_length = sizeof(struct in6_addr);
+ for (i = 0; i < naddrs; i++)
+ hostent->h_addr_list[i] = (char *) &addrs[i];
+ hostent->h_addr_list[naddrs] = NULL;
+ *host = hostent;
+ return ARES_SUCCESS;
+ }
+ free(hostent);
+ }
+ status = ARES_ENOMEM;
+ }
+ }
+ if (aliases)
+ {
+ for (i = 0; i < naliases; i++)
+ free(aliases[i]);
+ free(aliases);
+ }
+ free(addrs);
+ free(hostname);
+ return status;
+}
diff --git a/3rdParty/CAres/src/ares_parse_ns_reply.c b/3rdParty/CAres/src/ares_parse_ns_reply.c
new file mode 100644
index 0000000..25c6329
--- /dev/null
+++ b/3rdParty/CAres/src/ares_parse_ns_reply.c
@@ -0,0 +1,182 @@
+/* $Id */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+/*
+ * ares_parse_ns_reply created by Vlad Dinulescu <vlad.dinulescu@avira.com>
+ * on behalf of AVIRA Gmbh - http://www.avira.com
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_NETDB_H
+# include <netdb.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+# include <arpa/inet.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include "ares.h"
+#include "ares_dns.h"
+#include "ares_private.h"
+
+int ares_parse_ns_reply( const unsigned char* abuf, int alen,
+ struct hostent** host )
+{
+ unsigned int qdcount, ancount;
+ int status, i, rr_type, rr_class, rr_len;
+ int nameservers_num;
+ long len;
+ const unsigned char *aptr;
+ char* hostname, *rr_name, *rr_data, **nameservers;
+ struct hostent *hostent;
+
+ /* Set *host to NULL for all failure cases. */
+ *host = NULL;
+
+ /* Give up if abuf doesn't have room for a header. */
+ if ( alen < HFIXEDSZ )
+ return ARES_EBADRESP;
+
+ /* Fetch the question and answer count from the header. */
+ qdcount = DNS_HEADER_QDCOUNT( abuf );
+ ancount = DNS_HEADER_ANCOUNT( abuf );
+ if ( qdcount != 1 )
+ return ARES_EBADRESP;
+
+ /* Expand the name from the question, and skip past the question. */
+ aptr = abuf + HFIXEDSZ;
+ status = ares__expand_name_for_response( aptr, abuf, alen, &hostname, &len);
+ if ( status != ARES_SUCCESS )
+ return status;
+ if ( aptr + len + QFIXEDSZ > abuf + alen )
+ {
+ free( hostname );
+ return ARES_EBADRESP;
+ }
+ aptr += len + QFIXEDSZ;
+
+ /* Allocate nameservers array; ancount gives an upper bound */
+ nameservers = malloc( ( ancount + 1 ) * sizeof( char * ) );
+ if ( !nameservers )
+ {
+ free( hostname );
+ return ARES_ENOMEM;
+ }
+ nameservers_num = 0;
+
+ /* Examine each answer resource record (RR) in turn. */
+ for ( i = 0; i < ( int ) ancount; i++ )
+ {
+ /* Decode the RR up to the data field. */
+ status = ares__expand_name_for_response( aptr, abuf, alen, &rr_name, &len );
+ if ( status != ARES_SUCCESS )
+ break;
+ aptr += len;
+ if ( aptr + RRFIXEDSZ > abuf + alen )
+ {
+ status = ARES_EBADRESP;
+ break;
+ }
+ rr_type = DNS_RR_TYPE( aptr );
+ rr_class = DNS_RR_CLASS( aptr );
+ rr_len = DNS_RR_LEN( aptr );
+ aptr += RRFIXEDSZ;
+
+ if ( rr_class == C_IN && rr_type == T_NS )
+ {
+ /* Decode the RR data and add it to the nameservers list */
+ status = ares__expand_name_for_response( aptr, abuf, alen, &rr_data,
+ &len);
+ if ( status != ARES_SUCCESS )
+ {
+ break;
+ }
+
+ nameservers[nameservers_num] = malloc(strlen(rr_data)+1);
+
+ if (nameservers[nameservers_num]==NULL)
+ {
+ free(rr_name);
+ free(rr_data);
+ status=ARES_ENOMEM;
+ break;
+ }
+ strcpy(nameservers[nameservers_num],rr_data);
+ free(rr_data);
+
+ nameservers_num++;
+ }
+
+ free( rr_name );
+
+ aptr += rr_len;
+ if ( aptr > abuf + alen )
+ {
+ status = ARES_EBADRESP;
+ break;
+ }
+ }
+
+ if ( status == ARES_SUCCESS && nameservers_num == 0 )
+ {
+ status = ARES_ENODATA;
+ }
+ if ( status == ARES_SUCCESS )
+ {
+ /* We got our answer. Allocate memory to build the host entry. */
+ nameservers[nameservers_num] = NULL;
+ hostent = malloc( sizeof( struct hostent ) );
+ if ( hostent )
+ {
+ hostent->h_addr_list = malloc( 1 * sizeof( char * ) );
+ if ( hostent->h_addr_list )
+ {
+ /* Fill in the hostent and return successfully. */
+ hostent->h_name = hostname;
+ hostent->h_aliases = nameservers;
+ hostent->h_addrtype = AF_INET;
+ hostent->h_length = sizeof( struct in_addr );
+ hostent->h_addr_list[0] = NULL;
+ *host = hostent;
+ return ARES_SUCCESS;
+ }
+ free( hostent );
+ }
+ status = ARES_ENOMEM;
+ }
+ for ( i = 0; i < nameservers_num; i++ )
+ free( nameservers[i] );
+ free( nameservers );
+ free( hostname );
+ return status;
+}
diff --git a/3rdParty/CAres/src/ares_parse_ptr_reply.c b/3rdParty/CAres/src/ares_parse_ptr_reply.c
new file mode 100644
index 0000000..6f039b9
--- /dev/null
+++ b/3rdParty/CAres/src/ares_parse_ptr_reply.c
@@ -0,0 +1,209 @@
+/* $Id: ares_parse_ptr_reply.c,v 1.21 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_NETDB_H
+# include <netdb.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include "ares.h"
+#include "ares_dns.h"
+#include "ares_private.h"
+
+int ares_parse_ptr_reply(const unsigned char *abuf, int alen, const void *addr,
+ int addrlen, int family, struct hostent **host)
+{
+ unsigned int qdcount, ancount;
+ int status, i, rr_type, rr_class, rr_len;
+ long len;
+ const unsigned char *aptr;
+ char *ptrname, *hostname, *rr_name, *rr_data;
+ struct hostent *hostent;
+ int aliascnt = 0;
+ int alias_alloc = 8;
+ char ** aliases;
+
+ /* Set *host to NULL for all failure cases. */
+ *host = NULL;
+
+ /* Give up if abuf doesn't have room for a header. */
+ if (alen < HFIXEDSZ)
+ return ARES_EBADRESP;
+
+ /* Fetch the question and answer count from the header. */
+ qdcount = DNS_HEADER_QDCOUNT(abuf);
+ ancount = DNS_HEADER_ANCOUNT(abuf);
+ if (qdcount != 1)
+ return ARES_EBADRESP;
+
+ /* Expand the name from the question, and skip past the question. */
+ aptr = abuf + HFIXEDSZ;
+ status = ares__expand_name_for_response(aptr, abuf, alen, &ptrname, &len);
+ if (status != ARES_SUCCESS)
+ return status;
+ if (aptr + len + QFIXEDSZ > abuf + alen)
+ {
+ free(ptrname);
+ return ARES_EBADRESP;
+ }
+ aptr += len + QFIXEDSZ;
+
+ /* Examine each answer resource record (RR) in turn. */
+ hostname = NULL;
+ aliases = malloc(alias_alloc * sizeof(char *));
+ if (!aliases)
+ {
+ free(ptrname);
+ return ARES_ENOMEM;
+ }
+ for (i = 0; i < (int)ancount; i++)
+ {
+ /* Decode the RR up to the data field. */
+ status = ares__expand_name_for_response(aptr, abuf, alen, &rr_name, &len);
+ if (status != ARES_SUCCESS)
+ break;
+ aptr += len;
+ if (aptr + RRFIXEDSZ > abuf + alen)
+ {
+ status = ARES_EBADRESP;
+ break;
+ }
+ rr_type = DNS_RR_TYPE(aptr);
+ rr_class = DNS_RR_CLASS(aptr);
+ rr_len = DNS_RR_LEN(aptr);
+ aptr += RRFIXEDSZ;
+
+ if (rr_class == C_IN && rr_type == T_PTR
+ && strcasecmp(rr_name, ptrname) == 0)
+ {
+ /* Decode the RR data and set hostname to it. */
+ status = ares__expand_name_for_response(aptr, abuf, alen, &rr_data,
+ &len);
+ if (status != ARES_SUCCESS)
+ break;
+ if (hostname)
+ free(hostname);
+ hostname = rr_data;
+ aliases[aliascnt] = malloc((strlen(rr_data)+1) * sizeof(char *));
+ if (!aliases[aliascnt])
+ {
+ status = ARES_ENOMEM;
+ break;
+ }
+ strncpy(aliases[aliascnt], rr_data, strlen(rr_data)+1);
+ aliascnt++;
+ if (aliascnt >= alias_alloc) {
+ char **ptr;
+ alias_alloc *= 2;
+ ptr = realloc(aliases, alias_alloc * sizeof(char *));
+ if(!ptr) {
+ status = ARES_ENOMEM;
+ break;
+ }
+ aliases = ptr;
+ }
+ }
+
+ if (rr_class == C_IN && rr_type == T_CNAME)
+ {
+ /* Decode the RR data and replace ptrname with it. */
+ status = ares__expand_name_for_response(aptr, abuf, alen, &rr_data,
+ &len);
+ if (status != ARES_SUCCESS)
+ break;
+ free(ptrname);
+ ptrname = rr_data;
+ }
+
+ free(rr_name);
+ aptr += rr_len;
+ if (aptr > abuf + alen)
+ {
+ status = ARES_EBADRESP;
+ break;
+ }
+ }
+
+ if (status == ARES_SUCCESS && !hostname)
+ status = ARES_ENODATA;
+ if (status == ARES_SUCCESS)
+ {
+ /* We got our answer. Allocate memory to build the host entry. */
+ hostent = malloc(sizeof(struct hostent));
+ if (hostent)
+ {
+ hostent->h_addr_list = malloc(2 * sizeof(char *));
+ if (hostent->h_addr_list)
+ {
+ hostent->h_addr_list[0] = malloc(addrlen);
+ if (hostent->h_addr_list[0])
+ {
+ hostent->h_aliases = malloc((aliascnt+1) * sizeof (char *));
+ if (hostent->h_aliases)
+ {
+ /* Fill in the hostent and return successfully. */
+ hostent->h_name = hostname;
+ for (i=0 ; i<aliascnt ; i++)
+ hostent->h_aliases[i] = aliases[i];
+ hostent->h_aliases[aliascnt] = NULL;
+ hostent->h_addrtype = family;
+ hostent->h_length = addrlen;
+ memcpy(hostent->h_addr_list[0], addr, addrlen);
+ hostent->h_addr_list[1] = NULL;
+ *host = hostent;
+ free(aliases);
+ free(ptrname);
+ return ARES_SUCCESS;
+ }
+ free(hostent->h_addr_list[0]);
+ }
+ free(hostent->h_addr_list);
+ }
+ free(hostent);
+ }
+ status = ARES_ENOMEM;
+ }
+ for (i=0 ; i<aliascnt ; i++)
+ if (aliases[i])
+ free(aliases[i]);
+ free(aliases);
+ if (hostname)
+ free(hostname);
+ free(ptrname);
+ return status;
+}
diff --git a/3rdParty/CAres/src/ares_parse_srv_reply.c b/3rdParty/CAres/src/ares_parse_srv_reply.c
new file mode 100644
index 0000000..72830af
--- /dev/null
+++ b/3rdParty/CAres/src/ares_parse_srv_reply.c
@@ -0,0 +1,180 @@
+/* $Id: ares_parse_srv_reply.c,v 1.12 2009-11-26 01:21:21 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ * Copyright (C) 2009 by Jakub Hrozek <jhrozek@redhat.com>
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_NETDB_H
+# include <netdb.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+# include <arpa/inet.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include "ares.h"
+#include "ares_dns.h"
+#include "ares_data.h"
+#include "ares_private.h"
+
+/* AIX portability check */
+#ifndef T_SRV
+# define T_SRV 33 /* server selection */
+#endif
+
+int
+ares_parse_srv_reply (const unsigned char *abuf, int alen,
+ struct ares_srv_reply **srv_out)
+{
+ unsigned int qdcount, ancount, i;
+ const unsigned char *aptr, *vptr;
+ int status, rr_type, rr_class, rr_len;
+ long len;
+ char *hostname = NULL, *rr_name = NULL;
+ struct ares_srv_reply *srv_head = NULL;
+ struct ares_srv_reply *srv_last = NULL;
+ struct ares_srv_reply *srv_curr;
+
+ /* Set *srv_out to NULL for all failure cases. */
+ *srv_out = NULL;
+
+ /* Give up if abuf doesn't have room for a header. */
+ if (alen < HFIXEDSZ)
+ return ARES_EBADRESP;
+
+ /* Fetch the question and answer count from the header. */
+ qdcount = DNS_HEADER_QDCOUNT (abuf);
+ ancount = DNS_HEADER_ANCOUNT (abuf);
+ if (qdcount != 1)
+ return ARES_EBADRESP;
+ if (ancount == 0)
+ return ARES_ENODATA;
+
+ /* Expand the name from the question, and skip past the question. */
+ aptr = abuf + HFIXEDSZ;
+ status = ares_expand_name (aptr, abuf, alen, &hostname, &len);
+ if (status != ARES_SUCCESS)
+ return status;
+
+ if (aptr + len + QFIXEDSZ > abuf + alen)
+ {
+ free (hostname);
+ return ARES_EBADRESP;
+ }
+ aptr += len + QFIXEDSZ;
+
+ /* Examine each answer resource record (RR) in turn. */
+ for (i = 0; i < ancount; i++)
+ {
+ /* Decode the RR up to the data field. */
+ status = ares_expand_name (aptr, abuf, alen, &rr_name, &len);
+ if (status != ARES_SUCCESS)
+ {
+ break;
+ }
+ aptr += len;
+ if (aptr + RRFIXEDSZ > abuf + alen)
+ {
+ status = ARES_EBADRESP;
+ break;
+ }
+ rr_type = DNS_RR_TYPE (aptr);
+ rr_class = DNS_RR_CLASS (aptr);
+ rr_len = DNS_RR_LEN (aptr);
+ aptr += RRFIXEDSZ;
+
+ /* Check if we are really looking at a SRV record */
+ if (rr_class == C_IN && rr_type == T_SRV)
+ {
+ /* parse the SRV record itself */
+ if (rr_len < 6)
+ {
+ status = ARES_EBADRESP;
+ break;
+ }
+
+ /* Allocate storage for this SRV answer appending it to the list */
+ srv_curr = ares_malloc_data(ARES_DATATYPE_SRV_REPLY);
+ if (!srv_curr)
+ {
+ status = ARES_ENOMEM;
+ break;
+ }
+ if (srv_last)
+ {
+ srv_last->next = srv_curr;
+ }
+ else
+ {
+ srv_head = srv_curr;
+ }
+ srv_last = srv_curr;
+
+ vptr = aptr;
+ srv_curr->priority = ntohs (*((unsigned short *)vptr));
+ vptr += sizeof(unsigned short);
+ srv_curr->weight = ntohs (*((unsigned short *)vptr));
+ vptr += sizeof(unsigned short);
+ srv_curr->port = ntohs (*((unsigned short *)vptr));
+ vptr += sizeof(unsigned short);
+
+ status = ares_expand_name (vptr, abuf, alen, &srv_curr->host, &len);
+ if (status != ARES_SUCCESS)
+ break;
+ }
+
+ /* Don't lose memory in the next iteration */
+ free (rr_name);
+ rr_name = NULL;
+
+ /* Move on to the next record */
+ aptr += rr_len;
+ }
+
+ if (hostname)
+ free (hostname);
+ if (rr_name)
+ free (rr_name);
+
+ /* clean up on error */
+ if (status != ARES_SUCCESS)
+ {
+ if (srv_head)
+ ares_free_data (srv_head);
+ return status;
+ }
+
+ /* everything looks fine, return the data */
+ *srv_out = srv_head;
+
+ return ARES_SUCCESS;
+}
diff --git a/3rdParty/CAres/src/ares_parse_txt_reply.c b/3rdParty/CAres/src/ares_parse_txt_reply.c
new file mode 100644
index 0000000..b6af850
--- /dev/null
+++ b/3rdParty/CAres/src/ares_parse_txt_reply.c
@@ -0,0 +1,202 @@
+/* $Id: ares_parse_txt_reply.c,v 1.9 2009-11-26 01:21:21 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ * Copyright (C) 2009 by Jakub Hrozek <jhrozek@redhat.com>
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_NETDB_H
+# include <netdb.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+# include <arpa/inet.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "ares.h"
+#include "ares_dns.h"
+#include "ares_data.h"
+#include "ares_private.h"
+
+int
+ares_parse_txt_reply (const unsigned char *abuf, int alen,
+ struct ares_txt_reply **txt_out)
+{
+ size_t substr_len, str_len;
+ unsigned int qdcount, ancount, i;
+ const unsigned char *aptr;
+ const unsigned char *strptr;
+ int status, rr_type, rr_class, rr_len;
+ long len;
+ char *hostname = NULL, *rr_name = NULL;
+ struct ares_txt_reply *txt_head = NULL;
+ struct ares_txt_reply *txt_last = NULL;
+ struct ares_txt_reply *txt_curr;
+
+ /* Set *txt_out to NULL for all failure cases. */
+ *txt_out = NULL;
+
+ /* Give up if abuf doesn't have room for a header. */
+ if (alen < HFIXEDSZ)
+ return ARES_EBADRESP;
+
+ /* Fetch the question and answer count from the header. */
+ qdcount = DNS_HEADER_QDCOUNT (abuf);
+ ancount = DNS_HEADER_ANCOUNT (abuf);
+ if (qdcount != 1)
+ return ARES_EBADRESP;
+ if (ancount == 0)
+ return ARES_ENODATA;
+
+ /* Expand the name from the question, and skip past the question. */
+ aptr = abuf + HFIXEDSZ;
+ status = ares_expand_name (aptr, abuf, alen, &hostname, &len);
+ if (status != ARES_SUCCESS)
+ return status;
+
+ if (aptr + len + QFIXEDSZ > abuf + alen)
+ {
+ free (hostname);
+ return ARES_EBADRESP;
+ }
+ aptr += len + QFIXEDSZ;
+
+ /* Examine each answer resource record (RR) in turn. */
+ for (i = 0; i < ancount; i++)
+ {
+ /* Decode the RR up to the data field. */
+ status = ares_expand_name (aptr, abuf, alen, &rr_name, &len);
+ if (status != ARES_SUCCESS)
+ {
+ break;
+ }
+ aptr += len;
+ if (aptr + RRFIXEDSZ > abuf + alen)
+ {
+ status = ARES_EBADRESP;
+ break;
+ }
+ rr_type = DNS_RR_TYPE (aptr);
+ rr_class = DNS_RR_CLASS (aptr);
+ rr_len = DNS_RR_LEN (aptr);
+ aptr += RRFIXEDSZ;
+
+ /* Check if we are really looking at a TXT record */
+ if (rr_class == C_IN && rr_type == T_TXT)
+ {
+ /* Allocate storage for this TXT answer appending it to the list */
+ txt_curr = ares_malloc_data(ARES_DATATYPE_TXT_REPLY);
+ if (!txt_curr)
+ {
+ status = ARES_ENOMEM;
+ break;
+ }
+ if (txt_last)
+ {
+ txt_last->next = txt_curr;
+ }
+ else
+ {
+ txt_head = txt_curr;
+ }
+ txt_last = txt_curr;
+
+ /*
+ * There may be multiple substrings in a single TXT record. Each
+ * substring may be up to 255 characters in length, with a
+ * "length byte" indicating the size of the substring payload.
+ * RDATA contains both the length-bytes and payloads of all
+ * substrings contained therein.
+ */
+
+ /* Compute total length to allow a single memory allocation */
+ strptr = aptr;
+ while (strptr < (aptr + rr_len))
+ {
+ substr_len = (unsigned char)*strptr;
+ txt_curr->length += substr_len;
+ strptr += substr_len + 1;
+ }
+
+ /* Including null byte */
+ txt_curr->txt = malloc (txt_curr->length + 1);
+ if (txt_curr->txt == NULL)
+ {
+ status = ARES_ENOMEM;
+ break;
+ }
+
+ /* Step through the list of substrings, concatenating them */
+ str_len = 0;
+ strptr = aptr;
+ while (strptr < (aptr + rr_len))
+ {
+ substr_len = (unsigned char)*strptr;
+ strptr++;
+ memcpy ((char *) txt_curr->txt + str_len, strptr, substr_len);
+ str_len += substr_len;
+ strptr += substr_len;
+ }
+ /* Make sure we NULL-terminate */
+ *((char *) txt_curr->txt + txt_curr->length) = '\0';
+ }
+
+ /* Don't lose memory in the next iteration */
+ free (rr_name);
+ rr_name = NULL;
+
+ /* Move on to the next record */
+ aptr += rr_len;
+ }
+
+ if (hostname)
+ free (hostname);
+ if (rr_name)
+ free (rr_name);
+
+ /* clean up on error */
+ if (status != ARES_SUCCESS)
+ {
+ if (txt_head)
+ ares_free_data (txt_head);
+ return status;
+ }
+
+ /* everything looks fine, return the data */
+ *txt_out = txt_head;
+
+ return ARES_SUCCESS;
+}
diff --git a/3rdParty/CAres/src/ares_private.h b/3rdParty/CAres/src/ares_private.h
new file mode 100644
index 0000000..4726d7a
--- /dev/null
+++ b/3rdParty/CAres/src/ares_private.h
@@ -0,0 +1,343 @@
+#ifndef __ARES_PRIVATE_H
+#define __ARES_PRIVATE_H
+
+/* $Id: ares_private.h,v 1.50 2009-11-09 12:56:50 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ * Copyright (C) 2004-2009 by Daniel Stenberg
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+/*
+ * Define WIN32 when build target is Win32 API
+ */
+
+#if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32)
+#define WIN32
+#endif
+
+#include <stdio.h>
+#include <sys/types.h>
+
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+
+#ifdef WATT32
+#include <tcp.h>
+#include <sys/ioctl.h>
+#define writev(s,v,c) writev_s(s,v,c)
+#define HAVE_WRITEV 1
+#endif
+
+#ifdef NETWARE
+#include <time.h>
+#endif
+
+#define DEFAULT_TIMEOUT 5000 /* milliseconds */
+#define DEFAULT_TRIES 4
+#ifndef INADDR_NONE
+#define INADDR_NONE 0xffffffff
+#endif
+
+#if defined(WIN32) && !defined(WATT32)
+
+#define IS_NT() ((int)GetVersion() > 0)
+#define WIN_NS_9X "System\\CurrentControlSet\\Services\\VxD\\MSTCP"
+#define WIN_NS_NT_KEY "System\\CurrentControlSet\\Services\\Tcpip\\Parameters"
+#define NAMESERVER "NameServer"
+#define DHCPNAMESERVER "DhcpNameServer"
+#define DATABASEPATH "DatabasePath"
+#define WIN_PATH_HOSTS "\\hosts"
+
+#elif defined(WATT32)
+
+#define PATH_RESOLV_CONF "/dev/ENV/etc/resolv.conf"
+
+#elif defined(NETWARE)
+
+#define PATH_RESOLV_CONF "sys:/etc/resolv.cfg"
+#define PATH_HOSTS "sys:/etc/hosts"
+
+#elif defined(__riscos__)
+
+#define PATH_HOSTS "InetDBase:Hosts"
+
+#else
+
+#define PATH_RESOLV_CONF "/etc/resolv.conf"
+#ifdef ETC_INET
+#define PATH_HOSTS "/etc/inet/hosts"
+#else
+#define PATH_HOSTS "/etc/hosts"
+#endif
+
+#endif
+
+#define ARES_ID_KEY_LEN 31
+
+#include "ares_ipv6.h"
+#include "ares_llist.h"
+
+#ifndef HAVE_STRDUP
+# include "ares_strdup.h"
+# define strdup(ptr) ares_strdup(ptr)
+#endif
+
+#ifndef HAVE_STRCASECMP
+# include "ares_strcasecmp.h"
+# define strcasecmp(p1,p2) ares_strcasecmp(p1,p2)
+#endif
+
+#ifndef HAVE_STRNCASECMP
+# include "ares_strcasecmp.h"
+# define strncasecmp(p1,p2,n) ares_strncasecmp(p1,p2,n)
+#endif
+
+#ifndef HAVE_WRITEV
+# include "ares_writev.h"
+# define writev(s,ptr,cnt) ares_writev(s,ptr,cnt)
+#endif
+
+struct ares_addr {
+ int family;
+ union {
+ struct in_addr addr4;
+ struct in6_addr addr6;
+ } addr;
+};
+#define addrV4 addr.addr4
+#define addrV6 addr.addr6
+
+struct query;
+
+struct send_request {
+ /* Remaining data to send */
+ const unsigned char *data;
+ size_t len;
+
+ /* The query for which we're sending this data */
+ struct query* owner_query;
+ /* The buffer we're using, if we have our own copy of the packet */
+ unsigned char *data_storage;
+
+ /* Next request in queue */
+ struct send_request *next;
+};
+
+struct server_state {
+ struct in_addr addr;
+ ares_socket_t udp_socket;
+ ares_socket_t tcp_socket;
+
+ /* Mini-buffer for reading the length word */
+ unsigned char tcp_lenbuf[2];
+ int tcp_lenbuf_pos;
+ int tcp_length;
+
+ /* Buffer for reading actual TCP data */
+ unsigned char *tcp_buffer;
+ int tcp_buffer_pos;
+
+ /* TCP output queue */
+ struct send_request *qhead;
+ struct send_request *qtail;
+
+ /* Which incarnation of this connection is this? We don't want to
+ * retransmit requests into the very same socket, but if the server
+ * closes on us and we re-open the connection, then we do want to
+ * re-send. */
+ int tcp_connection_generation;
+
+ /* Circular, doubly-linked list of outstanding queries to this server */
+ struct list_node queries_to_server;
+
+ /* Link back to owning channel */
+ ares_channel channel;
+
+ /* Is this server broken? We mark connections as broken when a
+ * request that is queued for sending times out.
+ */
+ int is_broken;
+};
+
+/* State to represent a DNS query */
+struct query {
+ /* Query ID from qbuf, for faster lookup, and current timeout */
+ unsigned short qid;
+ struct timeval timeout;
+
+ /*
+ * Links for the doubly-linked lists in which we insert a query.
+ * These circular, doubly-linked lists that are hash-bucketed based
+ * the attributes we care about, help making most important
+ * operations O(1).
+ */
+ struct list_node queries_by_qid; /* hopefully in same cache line as qid */
+ struct list_node queries_by_timeout;
+ struct list_node queries_to_server;
+ struct list_node all_queries;
+
+ /* Query buf with length at beginning, for TCP transmission */
+ unsigned char *tcpbuf;
+ int tcplen;
+
+ /* Arguments passed to ares_send() (qbuf points into tcpbuf) */
+ const unsigned char *qbuf;
+ int qlen;
+ ares_callback callback;
+ void *arg;
+
+ /* Query status */
+ int try; /* Number of times we tried this query already. */
+ int server; /* Server this query has last been sent to. */
+ struct query_server_info *server_info; /* per-server state */
+ int using_tcp;
+ int error_status;
+ int timeouts; /* number of timeouts we saw for this request */
+};
+
+/* Per-server state for a query */
+struct query_server_info {
+ int skip_server; /* should we skip server, due to errors, etc? */
+ int tcp_connection_generation; /* into which TCP connection did we send? */
+};
+
+/* An IP address pattern; matches an IP address X if X & mask == addr */
+#define PATTERN_MASK 0x1
+#define PATTERN_CIDR 0x2
+
+struct apattern {
+ union
+ {
+ struct in_addr addr4;
+ struct in6_addr addr6;
+ } addr;
+ union
+ {
+ struct in_addr addr4;
+ struct in6_addr addr6;
+ unsigned short bits;
+ } mask;
+ int family;
+ unsigned short type;
+};
+
+typedef struct rc4_key
+{
+ unsigned char state[256];
+ unsigned char x;
+ unsigned char y;
+} rc4_key;
+
+struct ares_channeldata {
+ /* Configuration data */
+ int flags;
+ int timeout; /* in milliseconds */
+ int tries;
+ int ndots;
+ int rotate; /* if true, all servers specified are used */
+ int udp_port;
+ int tcp_port;
+ int socket_send_buffer_size;
+ int socket_receive_buffer_size;
+ char **domains;
+ int ndomains;
+ struct apattern *sortlist;
+ int nsort;
+ char *lookups;
+
+ int optmask; /* the option bitfield passed in at init time */
+
+ /* Server addresses and communications state */
+ struct server_state *servers;
+ int nservers;
+
+ /* ID to use for next query */
+ unsigned short next_id;
+ /* key to use when generating new ids */
+ rc4_key id_key;
+
+ /* Generation number to use for the next TCP socket open/close */
+ int tcp_connection_generation;
+
+ /* The time at which we last called process_timeouts(). Uses integer seconds
+ just to draw the line somewhere. */
+ time_t last_timeout_processed;
+
+ /* Last server we sent a query to. */
+ int last_server;
+
+ /* Circular, doubly-linked list of queries, bucketed various ways.... */
+ /* All active queries in a single list: */
+ struct list_node all_queries;
+ /* Queries bucketed by qid, for quickly dispatching DNS responses: */
+#define ARES_QID_TABLE_SIZE 2048
+ struct list_node queries_by_qid[ARES_QID_TABLE_SIZE];
+ /* Queries bucketed by timeout, for quickly handling timeouts: */
+#define ARES_TIMEOUT_TABLE_SIZE 1024
+ struct list_node queries_by_timeout[ARES_TIMEOUT_TABLE_SIZE];
+
+ ares_sock_state_cb sock_state_cb;
+ void *sock_state_cb_data;
+
+ ares_sock_create_callback sock_create_cb;
+ void *sock_create_cb_data;
+};
+
+/* return true if now is exactly check time or later */
+int ares__timedout(struct timeval *now,
+ struct timeval *check);
+/* add the specific number of milliseconds to the time in the first argument */
+int ares__timeadd(struct timeval *now,
+ int millisecs);
+/* return time offset between now and (future) check, in milliseconds */
+long ares__timeoffset(struct timeval *now,
+ struct timeval *check);
+/* returns ARES_SUCCESS if library has been initialized */
+int ares_library_initialized(void);
+void ares__rc4(rc4_key* key,unsigned char *buffer_ptr, int buffer_len);
+void ares__send_query(ares_channel channel, struct query *query,
+ struct timeval *now);
+void ares__close_sockets(ares_channel channel, struct server_state *server);
+int ares__get_hostent(FILE *fp, int family, struct hostent **host);
+int ares__read_line(FILE *fp, char **buf, size_t *bufsize);
+void ares__free_query(struct query *query);
+unsigned short ares__generate_new_id(rc4_key* key);
+struct timeval ares__tvnow(void);
+int ares__expand_name_for_response(const unsigned char *encoded,
+ const unsigned char *abuf, int alen,
+ char **s, long *enclen);
+#if 0 /* Not used */
+long ares__tvdiff(struct timeval t1, struct timeval t2);
+#endif
+
+#define ARES_SWAP_BYTE(a,b) \
+ { unsigned char swapByte = *(a); *(a) = *(b); *(b) = swapByte; }
+
+#define SOCK_STATE_CALLBACK(c, s, r, w) \
+ do { \
+ if ((c)->sock_state_cb) \
+ (c)->sock_state_cb((c)->sock_state_cb_data, (s), (r), (w)); \
+ } while (0)
+
+#ifdef CURLDEBUG
+/* This is low-level hard-hacking memory leak tracking and similar. Using the
+ libcurl lowlevel code from within library is ugly and only works when
+ c-ares is built and linked with a similarly curldebug-enabled libcurl,
+ but we do this anyway for convenience. */
+#include "../lib/memdebug.h"
+#endif
+
+#endif /* __ARES_PRIVATE_H */
diff --git a/3rdParty/CAres/src/ares_process.c b/3rdParty/CAres/src/ares_process.c
new file mode 100644
index 0000000..6182ccc
--- /dev/null
+++ b/3rdParty/CAres/src/ares_process.c
@@ -0,0 +1,1170 @@
+/* $Id: ares_process.c,v 1.79 2009-11-18 10:33:54 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ * Copyright (C) 2004-2009 by Daniel Stenberg
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_SYS_UIO_H
+# include <sys/uio.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_NETINET_TCP_H
+# include <netinet/tcp.h>
+#endif
+#ifdef HAVE_NETDB_H
+# include <netdb.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#ifdef HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#ifdef HAVE_SYS_IOCTL_H
+# include <sys/ioctl.h>
+#endif
+#ifdef NETWARE
+# include <sys/filio.h>
+#endif
+
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <time.h>
+#include <errno.h>
+
+#include "ares.h"
+#include "ares_dns.h"
+#include "ares_private.h"
+
+
+static int try_again(int errnum);
+static void write_tcp_data(ares_channel channel, fd_set *write_fds,
+ ares_socket_t write_fd, struct timeval *now);
+static void read_tcp_data(ares_channel channel, fd_set *read_fds,
+ ares_socket_t read_fd, struct timeval *now);
+static void read_udp_packets(ares_channel channel, fd_set *read_fds,
+ ares_socket_t read_fd, struct timeval *now);
+static void advance_tcp_send_queue(ares_channel channel, int whichserver,
+ ssize_t num_bytes);
+static void process_timeouts(ares_channel channel, struct timeval *now);
+static void process_broken_connections(ares_channel channel,
+ struct timeval *now);
+static void process_answer(ares_channel channel, unsigned char *abuf,
+ int alen, int whichserver, int tcp,
+ struct timeval *now);
+static void handle_error(ares_channel channel, int whichserver,
+ struct timeval *now);
+static void skip_server(ares_channel channel, struct query *query,
+ int whichserver);
+static void next_server(ares_channel channel, struct query *query,
+ struct timeval *now);
+static int configure_socket(int s, ares_channel channel);
+static int open_tcp_socket(ares_channel channel, struct server_state *server);
+static int open_udp_socket(ares_channel channel, struct server_state *server);
+static int same_questions(const unsigned char *qbuf, int qlen,
+ const unsigned char *abuf, int alen);
+static void end_query(ares_channel channel, struct query *query, int status,
+ unsigned char *abuf, int alen);
+
+/* return true if now is exactly check time or later */
+int ares__timedout(struct timeval *now,
+ struct timeval *check)
+{
+ long secs = (now->tv_sec - check->tv_sec);
+
+ if(secs > 0)
+ return 1; /* yes, timed out */
+ if(secs < 0)
+ return 0; /* nope, not timed out */
+
+ /* if the full seconds were identical, check the sub second parts */
+ return (now->tv_usec - check->tv_usec >= 0);
+}
+
+/* add the specific number of milliseconds to the time in the first argument */
+int ares__timeadd(struct timeval *now,
+ int millisecs)
+{
+ now->tv_sec += millisecs/1000;
+ now->tv_usec += (millisecs%1000)*1000;
+
+ if(now->tv_usec >= 1000000) {
+ ++(now->tv_sec);
+ now->tv_usec -= 1000000;
+ }
+
+ return 0;
+}
+
+/* return time offset between now and (future) check, in milliseconds */
+long ares__timeoffset(struct timeval *now,
+ struct timeval *check)
+{
+ return (check->tv_sec - now->tv_sec)*1000 +
+ (check->tv_usec - now->tv_usec)/1000;
+}
+
+
+/* Something interesting happened on the wire, or there was a timeout.
+ * See what's up and respond accordingly.
+ */
+void ares_process(ares_channel channel, fd_set *read_fds, fd_set *write_fds)
+{
+ struct timeval now = ares__tvnow();
+
+ write_tcp_data(channel, write_fds, ARES_SOCKET_BAD, &now);
+ read_tcp_data(channel, read_fds, ARES_SOCKET_BAD, &now);
+ read_udp_packets(channel, read_fds, ARES_SOCKET_BAD, &now);
+ process_timeouts(channel, &now);
+ process_broken_connections(channel, &now);
+}
+
+/* Something interesting happened on the wire, or there was a timeout.
+ * See what's up and respond accordingly.
+ */
+void ares_process_fd(ares_channel channel,
+ ares_socket_t read_fd, /* use ARES_SOCKET_BAD or valid
+ file descriptors */
+ ares_socket_t write_fd)
+{
+ struct timeval now = ares__tvnow();
+
+ write_tcp_data(channel, NULL, write_fd, &now);
+ read_tcp_data(channel, NULL, read_fd, &now);
+ read_udp_packets(channel, NULL, read_fd, &now);
+ process_timeouts(channel, &now);
+}
+
+
+/* Return 1 if the specified error number describes a readiness error, or 0
+ * otherwise. This is mostly for HP-UX, which could return EAGAIN or
+ * EWOULDBLOCK. See this man page
+ *
+ * http://devrsrc1.external.hp.com/STKS/cgi-bin/man2html?manpage=/usr/share/man/man2.Z/send.2
+ */
+static int try_again(int errnum)
+{
+#if !defined EWOULDBLOCK && !defined EAGAIN
+#error "Neither EWOULDBLOCK nor EAGAIN defined"
+#endif
+ switch (errnum)
+ {
+#ifdef EWOULDBLOCK
+ case EWOULDBLOCK:
+ return 1;
+#endif
+#if defined EAGAIN && EAGAIN != EWOULDBLOCK
+ case EAGAIN:
+ return 1;
+#endif
+ }
+ return 0;
+}
+
+/* If any TCP sockets select true for writing, write out queued data
+ * we have for them.
+ */
+static void write_tcp_data(ares_channel channel,
+ fd_set *write_fds,
+ ares_socket_t write_fd,
+ struct timeval *now)
+{
+ struct server_state *server;
+ struct send_request *sendreq;
+ struct iovec *vec;
+ int i;
+ ssize_t scount;
+ ssize_t wcount;
+ size_t n;
+
+ if(!write_fds && (write_fd == ARES_SOCKET_BAD))
+ /* no possible action */
+ return;
+
+ for (i = 0; i < channel->nservers; i++)
+ {
+ /* Make sure server has data to send and is selected in write_fds or
+ write_fd. */
+ server = &channel->servers[i];
+ if (!server->qhead || server->tcp_socket == ARES_SOCKET_BAD ||
+ server->is_broken)
+ continue;
+
+ if(write_fds) {
+ if(!FD_ISSET(server->tcp_socket, write_fds))
+ continue;
+ }
+ else {
+ if(server->tcp_socket != write_fd)
+ continue;
+ }
+
+ if(write_fds)
+ /* If there's an error and we close this socket, then open
+ * another with the same fd to talk to another server, then we
+ * don't want to think that it was the new socket that was
+ * ready. This is not disastrous, but is likely to result in
+ * extra system calls and confusion. */
+ FD_CLR(server->tcp_socket, write_fds);
+
+ /* Count the number of send queue items. */
+ n = 0;
+ for (sendreq = server->qhead; sendreq; sendreq = sendreq->next)
+ n++;
+
+ /* Allocate iovecs so we can send all our data at once. */
+ vec = malloc(n * sizeof(struct iovec));
+ if (vec)
+ {
+ /* Fill in the iovecs and send. */
+ n = 0;
+ for (sendreq = server->qhead; sendreq; sendreq = sendreq->next)
+ {
+ vec[n].iov_base = (char *) sendreq->data;
+ vec[n].iov_len = sendreq->len;
+ n++;
+ }
+ wcount = (ssize_t)writev(server->tcp_socket, vec, (int)n);
+ free(vec);
+ if (wcount < 0)
+ {
+ if (!try_again(SOCKERRNO))
+ handle_error(channel, i, now);
+ continue;
+ }
+
+ /* Advance the send queue by as many bytes as we sent. */
+ advance_tcp_send_queue(channel, i, wcount);
+ }
+ else
+ {
+ /* Can't allocate iovecs; just send the first request. */
+ sendreq = server->qhead;
+
+ scount = swrite(server->tcp_socket, sendreq->data, sendreq->len);
+ if (scount < 0)
+ {
+ if (!try_again(SOCKERRNO))
+ handle_error(channel, i, now);
+ continue;
+ }
+
+ /* Advance the send queue by as many bytes as we sent. */
+ advance_tcp_send_queue(channel, i, scount);
+ }
+ }
+}
+
+/* Consume the given number of bytes from the head of the TCP send queue. */
+static void advance_tcp_send_queue(ares_channel channel, int whichserver,
+ ssize_t num_bytes)
+{
+ struct send_request *sendreq;
+ struct server_state *server = &channel->servers[whichserver];
+ while (num_bytes > 0)
+ {
+ sendreq = server->qhead;
+ if ((size_t)num_bytes >= sendreq->len)
+ {
+ num_bytes -= sendreq->len;
+ server->qhead = sendreq->next;
+ if (server->qhead == NULL)
+ {
+ SOCK_STATE_CALLBACK(channel, server->tcp_socket, 1, 0);
+ server->qtail = NULL;
+ }
+ if (sendreq->data_storage != NULL)
+ free(sendreq->data_storage);
+ free(sendreq);
+ }
+ else
+ {
+ sendreq->data += num_bytes;
+ sendreq->len -= num_bytes;
+ num_bytes = 0;
+ }
+ }
+}
+
+/* If any TCP socket selects true for reading, read some data,
+ * allocate a buffer if we finish reading the length word, and process
+ * a packet if we finish reading one.
+ */
+static void read_tcp_data(ares_channel channel, fd_set *read_fds,
+ ares_socket_t read_fd, struct timeval *now)
+{
+ struct server_state *server;
+ int i;
+ ssize_t count;
+
+ if(!read_fds && (read_fd == ARES_SOCKET_BAD))
+ /* no possible action */
+ return;
+
+ for (i = 0; i < channel->nservers; i++)
+ {
+ /* Make sure the server has a socket and is selected in read_fds. */
+ server = &channel->servers[i];
+ if (server->tcp_socket == ARES_SOCKET_BAD || server->is_broken)
+ continue;
+
+ if(read_fds) {
+ if(!FD_ISSET(server->tcp_socket, read_fds))
+ continue;
+ }
+ else {
+ if(server->tcp_socket != read_fd)
+ continue;
+ }
+
+ if(read_fds)
+ /* If there's an error and we close this socket, then open
+ * another with the same fd to talk to another server, then we
+ * don't want to think that it was the new socket that was
+ * ready. This is not disastrous, but is likely to result in
+ * extra system calls and confusion. */
+ FD_CLR(server->tcp_socket, read_fds);
+
+ if (server->tcp_lenbuf_pos != 2)
+ {
+ /* We haven't yet read a length word, so read that (or
+ * what's left to read of it).
+ */
+ count = sread(server->tcp_socket,
+ server->tcp_lenbuf + server->tcp_lenbuf_pos,
+ 2 - server->tcp_lenbuf_pos);
+ if (count <= 0)
+ {
+ if (!(count == -1 && try_again(SOCKERRNO)))
+ handle_error(channel, i, now);
+ continue;
+ }
+
+ server->tcp_lenbuf_pos += (int)count;
+ if (server->tcp_lenbuf_pos == 2)
+ {
+ /* We finished reading the length word. Decode the
+ * length and allocate a buffer for the data.
+ */
+ server->tcp_length = server->tcp_lenbuf[0] << 8
+ | server->tcp_lenbuf[1];
+ server->tcp_buffer = malloc(server->tcp_length);
+ if (!server->tcp_buffer)
+ handle_error(channel, i, now);
+ server->tcp_buffer_pos = 0;
+ }
+ }
+ else
+ {
+ /* Read data into the allocated buffer. */
+ count = sread(server->tcp_socket,
+ server->tcp_buffer + server->tcp_buffer_pos,
+ server->tcp_length - server->tcp_buffer_pos);
+ if (count <= 0)
+ {
+ if (!(count == -1 && try_again(SOCKERRNO)))
+ handle_error(channel, i, now);
+ continue;
+ }
+
+ server->tcp_buffer_pos += (int)count;
+ if (server->tcp_buffer_pos == server->tcp_length)
+ {
+ /* We finished reading this answer; process it and
+ * prepare to read another length word.
+ */
+ process_answer(channel, server->tcp_buffer, server->tcp_length,
+ i, 1, now);
+ if (server->tcp_buffer)
+ free(server->tcp_buffer);
+ server->tcp_buffer = NULL;
+ server->tcp_lenbuf_pos = 0;
+ server->tcp_buffer_pos = 0;
+ }
+ }
+ }
+}
+
+/* If any UDP sockets select true for reading, process them. */
+static void read_udp_packets(ares_channel channel, fd_set *read_fds,
+ ares_socket_t read_fd, struct timeval *now)
+{
+ struct server_state *server;
+ int i;
+ ssize_t count;
+ unsigned char buf[PACKETSZ + 1];
+#ifdef HAVE_RECVFROM
+ struct sockaddr_in from;
+ ares_socklen_t fromlen;
+#endif
+
+ if(!read_fds && (read_fd == ARES_SOCKET_BAD))
+ /* no possible action */
+ return;
+
+ for (i = 0; i < channel->nservers; i++)
+ {
+ /* Make sure the server has a socket and is selected in read_fds. */
+ server = &channel->servers[i];
+
+ if (server->udp_socket == ARES_SOCKET_BAD || server->is_broken)
+ continue;
+
+ if(read_fds) {
+ if(!FD_ISSET(server->udp_socket, read_fds))
+ continue;
+ }
+ else {
+ if(server->udp_socket != read_fd)
+ continue;
+ }
+
+ if(read_fds)
+ /* If there's an error and we close this socket, then open
+ * another with the same fd to talk to another server, then we
+ * don't want to think that it was the new socket that was
+ * ready. This is not disastrous, but is likely to result in
+ * extra system calls and confusion. */
+ FD_CLR(server->udp_socket, read_fds);
+
+ /* To reduce event loop overhead, read and process as many
+ * packets as we can. */
+ do {
+#ifdef HAVE_RECVFROM
+ fromlen = sizeof(from);
+ count = (ssize_t)recvfrom(server->udp_socket, (void *)buf, sizeof(buf),
+ 0, (struct sockaddr *)&from, &fromlen);
+#else
+ count = sread(server->udp_socket, buf, sizeof(buf));
+#endif
+ if (count == -1 && try_again(SOCKERRNO))
+ continue;
+ else if (count <= 0)
+ handle_error(channel, i, now);
+#ifdef HAVE_RECVFROM
+ else if (from.sin_addr.s_addr != server->addr.s_addr)
+ /* Address response came from did not match the address
+ * we sent the request to. Someone may be attempting
+ * to perform a cache poisoning attack */
+ break;
+#endif
+ else
+ process_answer(channel, buf, (int)count, i, 0, now);
+ } while (count > 0);
+ }
+}
+
+/* If any queries have timed out, note the timeout and move them on. */
+static void process_timeouts(ares_channel channel, struct timeval *now)
+{
+ time_t t; /* the time of the timeouts we're processing */
+ struct query *query;
+ struct list_node* list_head;
+ struct list_node* list_node;
+
+ /* Process all the timeouts that have fired since the last time we
+ * processed timeouts. If things are going well, then we'll have
+ * hundreds/thousands of queries that fall into future buckets, and
+ * only a handful of requests that fall into the "now" bucket, so
+ * this should be quite quick.
+ */
+ for (t = channel->last_timeout_processed; t <= now->tv_sec; t++)
+ {
+ list_head = &(channel->queries_by_timeout[t % ARES_TIMEOUT_TABLE_SIZE]);
+ for (list_node = list_head->next; list_node != list_head; )
+ {
+ query = list_node->data;
+ list_node = list_node->next; /* in case the query gets deleted */
+ if (query->timeout.tv_sec && ares__timedout(now, &query->timeout))
+ {
+ query->error_status = ARES_ETIMEOUT;
+ ++query->timeouts;
+ next_server(channel, query, now);
+ }
+ }
+ }
+ channel->last_timeout_processed = now->tv_sec;
+}
+
+/* Handle an answer from a server. */
+static void process_answer(ares_channel channel, unsigned char *abuf,
+ int alen, int whichserver, int tcp,
+ struct timeval *now)
+{
+ int tc, rcode;
+ unsigned short id;
+ struct query *query;
+ struct list_node* list_head;
+ struct list_node* list_node;
+
+ /* If there's no room in the answer for a header, we can't do much
+ * with it. */
+ if (alen < HFIXEDSZ)
+ return;
+
+ /* Grab the query ID, truncate bit, and response code from the packet. */
+ id = DNS_HEADER_QID(abuf);
+ tc = DNS_HEADER_TC(abuf);
+ rcode = DNS_HEADER_RCODE(abuf);
+
+ /* Find the query corresponding to this packet. The queries are
+ * hashed/bucketed by query id, so this lookup should be quick.
+ * Note that both the query id and the questions must be the same;
+ * when the query id wraps around we can have multiple outstanding
+ * queries with the same query id, so we need to check both the id and
+ * question.
+ */
+ query = NULL;
+ list_head = &(channel->queries_by_qid[id % ARES_QID_TABLE_SIZE]);
+ for (list_node = list_head->next; list_node != list_head;
+ list_node = list_node->next)
+ {
+ struct query *q = list_node->data;
+ if ((q->qid == id) && same_questions(q->qbuf, q->qlen, abuf, alen))
+ {
+ query = q;
+ break;
+ }
+ }
+ if (!query)
+ return;
+
+ /* If we got a truncated UDP packet and are not ignoring truncation,
+ * don't accept the packet, and switch the query to TCP if we hadn't
+ * done so already.
+ */
+ if ((tc || alen > PACKETSZ) && !tcp && !(channel->flags & ARES_FLAG_IGNTC))
+ {
+ if (!query->using_tcp)
+ {
+ query->using_tcp = 1;
+ ares__send_query(channel, query, now);
+ }
+ return;
+ }
+
+ /* Limit alen to PACKETSZ if we aren't using TCP (only relevant if we
+ * are ignoring truncation.
+ */
+ if (alen > PACKETSZ && !tcp)
+ alen = PACKETSZ;
+
+ /* If we aren't passing through all error packets, discard packets
+ * with SERVFAIL, NOTIMP, or REFUSED response codes.
+ */
+ if (!(channel->flags & ARES_FLAG_NOCHECKRESP))
+ {
+ if (rcode == SERVFAIL || rcode == NOTIMP || rcode == REFUSED)
+ {
+ skip_server(channel, query, whichserver);
+ if (query->server == whichserver)
+ next_server(channel, query, now);
+ return;
+ }
+ }
+
+ end_query(channel, query, ARES_SUCCESS, abuf, alen);
+}
+
+/* Close all the connections that are no longer usable. */
+static void process_broken_connections(ares_channel channel,
+ struct timeval *now)
+{
+ int i;
+ for (i = 0; i < channel->nservers; i++)
+ {
+ struct server_state *server = &channel->servers[i];
+ if (server->is_broken)
+ {
+ handle_error(channel, i, now);
+ }
+ }
+}
+
+static void handle_error(ares_channel channel, int whichserver,
+ struct timeval *now)
+{
+ struct server_state *server;
+ struct query *query;
+ struct list_node list_head;
+ struct list_node* list_node;
+
+ server = &channel->servers[whichserver];
+
+ /* Reset communications with this server. */
+ ares__close_sockets(channel, server);
+
+ /* Tell all queries talking to this server to move on and not try
+ * this server again. We steal the current list of queries that were
+ * in-flight to this server, since when we call next_server this can
+ * cause the queries to be re-sent to this server, which will
+ * re-insert these queries in that same server->queries_to_server
+ * list.
+ */
+ ares__init_list_head(&list_head);
+ ares__swap_lists(&list_head, &(server->queries_to_server));
+ for (list_node = list_head.next; list_node != &list_head; )
+ {
+ query = list_node->data;
+ list_node = list_node->next; /* in case the query gets deleted */
+ assert(query->server == whichserver);
+ skip_server(channel, query, whichserver);
+ next_server(channel, query, now);
+ }
+ /* Each query should have removed itself from our temporary list as
+ * it re-sent itself or finished up...
+ */
+ assert(ares__is_list_empty(&list_head));
+}
+
+static void skip_server(ares_channel channel, struct query *query,
+ int whichserver) {
+ /* The given server gave us problems with this query, so if we have
+ * the luxury of using other servers, then let's skip the
+ * potentially broken server and just use the others. If we only
+ * have one server and we need to retry then we should just go ahead
+ * and re-use that server, since it's our only hope; perhaps we
+ * just got unlucky, and retrying will work (eg, the server timed
+ * out our TCP connection just as we were sending another request).
+ */
+ if (channel->nservers > 1)
+ {
+ query->server_info[whichserver].skip_server = 1;
+ }
+}
+
+static void next_server(ares_channel channel, struct query *query,
+ struct timeval *now)
+{
+ /* We need to try each server channel->tries times. We have channel->nservers
+ * servers to try. In total, we need to do channel->nservers * channel->tries
+ * attempts. Use query->try to remember how many times we already attempted
+ * this query. Use modular arithmetic to find the next server to try. */
+ while (++(query->try) < (channel->nservers * channel->tries))
+ {
+ struct server_state *server;
+
+ /* Move on to the next server. */
+ query->server = (query->server + 1) % channel->nservers;
+ server = &channel->servers[query->server];
+
+ /* We don't want to use this server if (1) we decided this
+ * connection is broken, and thus about to be closed, (2)
+ * we've decided to skip this server because of earlier
+ * errors we encountered, or (3) we already sent this query
+ * over this exact connection.
+ */
+ if (!server->is_broken &&
+ !query->server_info[query->server].skip_server &&
+ !(query->using_tcp &&
+ (query->server_info[query->server].tcp_connection_generation ==
+ server->tcp_connection_generation)))
+ {
+ ares__send_query(channel, query, now);
+ return;
+ }
+
+ /* You might think that with TCP we only need one try. However,
+ * even when using TCP, servers can time-out our connection just
+ * as we're sending a request, or close our connection because
+ * they die, or never send us a reply because they get wedged or
+ * tickle a bug that drops our request.
+ */
+ }
+
+ /* If we are here, all attempts to perform query failed. */
+ end_query(channel, query, query->error_status, NULL, 0);
+}
+
+void ares__send_query(ares_channel channel, struct query *query,
+ struct timeval *now)
+{
+ struct send_request *sendreq;
+ struct server_state *server;
+ int timeplus;
+
+ server = &channel->servers[query->server];
+ if (query->using_tcp)
+ {
+ /* Make sure the TCP socket for this server is set up and queue
+ * a send request.
+ */
+ if (server->tcp_socket == ARES_SOCKET_BAD)
+ {
+ if (open_tcp_socket(channel, server) == -1)
+ {
+ skip_server(channel, query, query->server);
+ next_server(channel, query, now);
+ return;
+ }
+ }
+ sendreq = calloc(1, sizeof(struct send_request));
+ if (!sendreq)
+ {
+ end_query(channel, query, ARES_ENOMEM, NULL, 0);
+ return;
+ }
+ /* To make the common case fast, we avoid copies by using the
+ * query's tcpbuf for as long as the query is alive. In the rare
+ * case where the query ends while it's queued for transmission,
+ * then we give the sendreq its own copy of the request packet
+ * and put it in sendreq->data_storage.
+ */
+ sendreq->data_storage = NULL;
+ sendreq->data = query->tcpbuf;
+ sendreq->len = query->tcplen;
+ sendreq->owner_query = query;
+ sendreq->next = NULL;
+ if (server->qtail)
+ server->qtail->next = sendreq;
+ else
+ {
+ SOCK_STATE_CALLBACK(channel, server->tcp_socket, 1, 1);
+ server->qhead = sendreq;
+ }
+ server->qtail = sendreq;
+ query->server_info[query->server].tcp_connection_generation =
+ server->tcp_connection_generation;
+ }
+ else
+ {
+ if (server->udp_socket == ARES_SOCKET_BAD)
+ {
+ if (open_udp_socket(channel, server) == -1)
+ {
+ skip_server(channel, query, query->server);
+ next_server(channel, query, now);
+ return;
+ }
+ }
+ if (swrite(server->udp_socket, query->qbuf, query->qlen) == -1)
+ {
+ /* FIXME: Handle EAGAIN here since it likely can happen. */
+ skip_server(channel, query, query->server);
+ next_server(channel, query, now);
+ return;
+ }
+ }
+ timeplus = channel->timeout << (query->try / channel->nservers);
+ timeplus = (timeplus * (9 + (rand () & 7))) / 16;
+ query->timeout = *now;
+ ares__timeadd(&query->timeout,
+ timeplus);
+ /* Keep track of queries bucketed by timeout, so we can process
+ * timeout events quickly.
+ */
+ ares__remove_from_list(&(query->queries_by_timeout));
+ ares__insert_in_list(
+ &(query->queries_by_timeout),
+ &(channel->queries_by_timeout[query->timeout.tv_sec %
+ ARES_TIMEOUT_TABLE_SIZE]));
+
+ /* Keep track of queries bucketed by server, so we can process server
+ * errors quickly.
+ */
+ ares__remove_from_list(&(query->queries_to_server));
+ ares__insert_in_list(&(query->queries_to_server),
+ &(server->queries_to_server));
+}
+
+/*
+ * setsocknonblock sets the given socket to either blocking or non-blocking mode
+ * based on the 'nonblock' boolean argument. This function is highly portable.
+ */
+static int setsocknonblock(ares_socket_t sockfd, /* operate on this */
+ int nonblock /* TRUE or FALSE */)
+{
+#if defined(USE_BLOCKING_SOCKETS)
+
+ return 0; /* returns success */
+
+#elif defined(HAVE_FCNTL_O_NONBLOCK)
+
+ /* most recent unix versions */
+ int flags;
+ flags = fcntl(sockfd, F_GETFL, 0);
+ if (FALSE != nonblock)
+ return fcntl(sockfd, F_SETFL, flags | O_NONBLOCK);
+ else
+ return fcntl(sockfd, F_SETFL, flags & (~O_NONBLOCK));
+
+#elif defined(HAVE_IOCTL_FIONBIO)
+
+ /* older unix versions */
+ int flags;
+ flags = nonblock;
+ return ioctl(sockfd, FIONBIO, &flags);
+
+#elif defined(HAVE_IOCTLSOCKET_FIONBIO)
+
+#ifdef WATT32
+ char flags;
+#else
+ /* Windows */
+ unsigned long flags;
+#endif
+ flags = nonblock;
+ return ioctlsocket(sockfd, FIONBIO, &flags);
+
+#elif defined(HAVE_IOCTLSOCKET_CAMEL_FIONBIO)
+
+ /* Amiga */
+ return IoctlSocket(sockfd, FIONBIO, (long)nonblock);
+
+#elif defined(HAVE_SETSOCKOPT_SO_NONBLOCK)
+
+ /* BeOS */
+ long b = nonblock ? 1 : 0;
+ return setsockopt(sockfd, SOL_SOCKET, SO_NONBLOCK, &b, sizeof(b));
+
+#else
+# error "no non-blocking method was found/used/set"
+#endif
+}
+
+static int configure_socket(int s, ares_channel channel)
+{
+ setsocknonblock(s, TRUE);
+
+#if defined(FD_CLOEXEC) && !defined(MSDOS)
+ /* Configure the socket fd as close-on-exec. */
+ if (fcntl(s, F_SETFD, FD_CLOEXEC) == -1)
+ return -1;
+#endif
+
+ /* Set the socket's send and receive buffer sizes. */
+ if ((channel->socket_send_buffer_size > 0) &&
+ setsockopt(s, SOL_SOCKET, SO_SNDBUF,
+ (void *)&channel->socket_send_buffer_size,
+ sizeof(channel->socket_send_buffer_size)) == -1)
+ return -1;
+
+ if ((channel->socket_receive_buffer_size > 0) &&
+ setsockopt(s, SOL_SOCKET, SO_RCVBUF,
+ (void *)&channel->socket_receive_buffer_size,
+ sizeof(channel->socket_receive_buffer_size)) == -1)
+ return -1;
+
+ return 0;
+ }
+
+static int open_tcp_socket(ares_channel channel, struct server_state *server)
+{
+ ares_socket_t s;
+ int opt;
+ struct sockaddr_in sockin;
+
+ /* Acquire a socket. */
+ s = socket(AF_INET, SOCK_STREAM, 0);
+ if (s == ARES_SOCKET_BAD)
+ return -1;
+
+ /* Configure it. */
+ if (configure_socket(s, channel) < 0)
+ {
+ sclose(s);
+ return -1;
+ }
+
+#ifdef TCP_NODELAY
+ /*
+ * Disable the Nagle algorithm (only relevant for TCP sockets, and thus not in
+ * configure_socket). In general, in DNS lookups we're pretty much interested
+ * in firing off a single request and then waiting for a reply, so batching
+ * isn't very interesting in general.
+ */
+ opt = 1;
+ if (setsockopt(s, IPPROTO_TCP, TCP_NODELAY,
+ (void *)&opt, sizeof(opt)) == -1)
+ {
+ sclose(s);
+ return -1;
+ }
+#endif
+
+ /* Connect to the server. */
+ memset(&sockin, 0, sizeof(sockin));
+ sockin.sin_family = AF_INET;
+ sockin.sin_addr = server->addr;
+ sockin.sin_port = (unsigned short)(channel->tcp_port & 0xffff);
+ if (connect(s, (struct sockaddr *) &sockin, sizeof(sockin)) == -1)
+ {
+ int err = SOCKERRNO;
+
+ if (err != EINPROGRESS && err != EWOULDBLOCK)
+ {
+ sclose(s);
+ return -1;
+ }
+ }
+
+ if (channel->sock_create_cb)
+ {
+ int err = channel->sock_create_cb(s, SOCK_STREAM,
+ channel->sock_create_cb_data);
+ if (err < 0)
+ {
+ sclose(s);
+ return err;
+ }
+ }
+
+ SOCK_STATE_CALLBACK(channel, s, 1, 0);
+ server->tcp_buffer_pos = 0;
+ server->tcp_socket = s;
+ server->tcp_connection_generation = ++channel->tcp_connection_generation;
+ return 0;
+}
+
+static int open_udp_socket(ares_channel channel, struct server_state *server)
+{
+ ares_socket_t s;
+ struct sockaddr_in sockin;
+
+ /* Acquire a socket. */
+ s = socket(AF_INET, SOCK_DGRAM, 0);
+ if (s == ARES_SOCKET_BAD)
+ return -1;
+
+ /* Set the socket non-blocking. */
+ if (configure_socket(s, channel) < 0)
+ {
+ sclose(s);
+ return -1;
+ }
+
+ /* Connect to the server. */
+ memset(&sockin, 0, sizeof(sockin));
+ sockin.sin_family = AF_INET;
+ sockin.sin_addr = server->addr;
+ sockin.sin_port = (unsigned short)(channel->udp_port & 0xffff);
+ if (connect(s, (struct sockaddr *) &sockin, sizeof(sockin)) == -1)
+ {
+ int err = SOCKERRNO;
+
+ if (err != EINPROGRESS && err != EWOULDBLOCK)
+ {
+ sclose(s);
+ return -1;
+ }
+ }
+
+ if (channel->sock_create_cb)
+ {
+ int err = channel->sock_create_cb(s, SOCK_DGRAM,
+ channel->sock_create_cb_data);
+ if (err < 0)
+ {
+ sclose(s);
+ return err;
+ }
+ }
+
+ SOCK_STATE_CALLBACK(channel, s, 1, 0);
+
+ server->udp_socket = s;
+ return 0;
+}
+
+static int same_questions(const unsigned char *qbuf, int qlen,
+ const unsigned char *abuf, int alen)
+{
+ struct {
+ const unsigned char *p;
+ int qdcount;
+ char *name;
+ long namelen;
+ int type;
+ int dnsclass;
+ } q, a;
+ int i, j;
+
+ if (qlen < HFIXEDSZ || alen < HFIXEDSZ)
+ return 0;
+
+ /* Extract qdcount from the request and reply buffers and compare them. */
+ q.qdcount = DNS_HEADER_QDCOUNT(qbuf);
+ a.qdcount = DNS_HEADER_QDCOUNT(abuf);
+ if (q.qdcount != a.qdcount)
+ return 0;
+
+ /* For each question in qbuf, find it in abuf. */
+ q.p = qbuf + HFIXEDSZ;
+ for (i = 0; i < q.qdcount; i++)
+ {
+ /* Decode the question in the query. */
+ if (ares_expand_name(q.p, qbuf, qlen, &q.name, &q.namelen)
+ != ARES_SUCCESS)
+ return 0;
+ q.p += q.namelen;
+ if (q.p + QFIXEDSZ > qbuf + qlen)
+ {
+ free(q.name);
+ return 0;
+ }
+ q.type = DNS_QUESTION_TYPE(q.p);
+ q.dnsclass = DNS_QUESTION_CLASS(q.p);
+ q.p += QFIXEDSZ;
+
+ /* Search for this question in the answer. */
+ a.p = abuf + HFIXEDSZ;
+ for (j = 0; j < a.qdcount; j++)
+ {
+ /* Decode the question in the answer. */
+ if (ares_expand_name(a.p, abuf, alen, &a.name, &a.namelen)
+ != ARES_SUCCESS)
+ {
+ free(q.name);
+ return 0;
+ }
+ a.p += a.namelen;
+ if (a.p + QFIXEDSZ > abuf + alen)
+ {
+ free(q.name);
+ free(a.name);
+ return 0;
+ }
+ a.type = DNS_QUESTION_TYPE(a.p);
+ a.dnsclass = DNS_QUESTION_CLASS(a.p);
+ a.p += QFIXEDSZ;
+
+ /* Compare the decoded questions. */
+ if (strcasecmp(q.name, a.name) == 0 && q.type == a.type
+ && q.dnsclass == a.dnsclass)
+ {
+ free(a.name);
+ break;
+ }
+ free(a.name);
+ }
+
+ free(q.name);
+ if (j == a.qdcount)
+ return 0;
+ }
+ return 1;
+}
+
+static void end_query (ares_channel channel, struct query *query, int status,
+ unsigned char *abuf, int alen)
+{
+ int i;
+
+ /* First we check to see if this query ended while one of our send
+ * queues still has pointers to it.
+ */
+ for (i = 0; i < channel->nservers; i++)
+ {
+ struct server_state *server = &channel->servers[i];
+ struct send_request *sendreq;
+ for (sendreq = server->qhead; sendreq; sendreq = sendreq->next)
+ if (sendreq->owner_query == query)
+ {
+ sendreq->owner_query = NULL;
+ assert(sendreq->data_storage == NULL);
+ if (status == ARES_SUCCESS)
+ {
+ /* We got a reply for this query, but this queued
+ * sendreq points into this soon-to-be-gone query's
+ * tcpbuf. Probably this means we timed out and queued
+ * the query for retransmission, then received a
+ * response before actually retransmitting. This is
+ * perfectly fine, so we want to keep the connection
+ * running smoothly if we can. But in the worst case
+ * we may have sent only some prefix of the query,
+ * with some suffix of the query left to send. Also,
+ * the buffer may be queued on multiple queues. To
+ * prevent dangling pointers to the query's tcpbuf and
+ * handle these cases, we just give such sendreqs
+ * their own copy of the query packet.
+ */
+ sendreq->data_storage = malloc(sendreq->len);
+ if (sendreq->data_storage != NULL)
+ {
+ memcpy(sendreq->data_storage, sendreq->data, sendreq->len);
+ sendreq->data = sendreq->data_storage;
+ }
+ }
+ if ((status != ARES_SUCCESS) || (sendreq->data_storage == NULL))
+ {
+ /* We encountered an error (probably a timeout,
+ * suggesting the DNS server we're talking to is
+ * probably unreachable, wedged, or severely
+ * overloaded) or we couldn't copy the request, so
+ * mark the connection as broken. When we get to
+ * process_broken_connections() we'll close the
+ * connection and try to re-send requests to another
+ * server.
+ */
+ server->is_broken = 1;
+ /* Just to be paranoid, zero out this sendreq... */
+ sendreq->data = NULL;
+ sendreq->len = 0;
+ }
+ }
+ }
+
+ /* Invoke the callback */
+ query->callback(query->arg, status, query->timeouts, abuf, alen);
+ ares__free_query(query);
+
+ /* Simple cleanup policy: if no queries are remaining, close all
+ * network sockets unless STAYOPEN is set.
+ */
+ if (!(channel->flags & ARES_FLAG_STAYOPEN) &&
+ ares__is_list_empty(&(channel->all_queries)))
+ {
+ for (i = 0; i < channel->nservers; i++)
+ ares__close_sockets(channel, &channel->servers[i]);
+ }
+}
+
+void ares__free_query(struct query *query)
+{
+ /* Remove the query from all the lists in which it is linked */
+ ares__remove_from_list(&(query->queries_by_qid));
+ ares__remove_from_list(&(query->queries_by_timeout));
+ ares__remove_from_list(&(query->queries_to_server));
+ ares__remove_from_list(&(query->all_queries));
+ /* Zero out some important stuff, to help catch bugs */
+ query->callback = NULL;
+ query->arg = NULL;
+ /* Deallocate the memory associated with the query */
+ free(query->tcpbuf);
+ free(query->server_info);
+ free(query);
+}
diff --git a/3rdParty/CAres/src/ares_query.c b/3rdParty/CAres/src/ares_query.c
new file mode 100644
index 0000000..7052d7a
--- /dev/null
+++ b/3rdParty/CAres/src/ares_query.c
@@ -0,0 +1,184 @@
+/* $Id: ares_query.c,v 1.21 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#include <stdlib.h>
+#include "ares.h"
+#include "ares_dns.h"
+#include "ares_private.h"
+
+struct qquery {
+ ares_callback callback;
+ void *arg;
+};
+
+static void qcallback(void *arg, int status, int timeouts, unsigned char *abuf, int alen);
+
+void ares__rc4(rc4_key* key, unsigned char *buffer_ptr, int buffer_len)
+{
+ unsigned char x;
+ unsigned char y;
+ unsigned char* state;
+ unsigned char xorIndex;
+ short counter;
+
+ x = key->x;
+ y = key->y;
+
+ state = &key->state[0];
+ for(counter = 0; counter < buffer_len; counter ++)
+ {
+ x = (unsigned char)((x + 1) % 256);
+ y = (unsigned char)((state[x] + y) % 256);
+ ARES_SWAP_BYTE(&state[x], &state[y]);
+
+ xorIndex = (unsigned char)((state[x] + state[y]) % 256);
+
+ buffer_ptr[counter] = (unsigned char)(buffer_ptr[counter]^state[xorIndex]);
+ }
+ key->x = x;
+ key->y = y;
+}
+
+static struct query* find_query_by_id(ares_channel channel, unsigned short id)
+{
+ unsigned short qid;
+ struct list_node* list_head;
+ struct list_node* list_node;
+ DNS_HEADER_SET_QID(((unsigned char*)&qid), id);
+
+ /* Find the query corresponding to this packet. */
+ list_head = &(channel->queries_by_qid[qid % ARES_QID_TABLE_SIZE]);
+ for (list_node = list_head->next; list_node != list_head;
+ list_node = list_node->next)
+ {
+ struct query *q = list_node->data;
+ if (q->qid == qid)
+ return q;
+ }
+ return NULL;
+}
+
+
+/* a unique query id is generated using an rc4 key. Since the id may already
+ be used by a running query (as infrequent as it may be), a lookup is
+ performed per id generation. In practice this search should happen only
+ once per newly generated id
+*/
+static unsigned short generate_unique_id(ares_channel channel)
+{
+ unsigned short id;
+
+ do {
+ id = ares__generate_new_id(&channel->id_key);
+ } while (find_query_by_id(channel, id));
+
+ return (unsigned short)id;
+}
+
+void ares_query(ares_channel channel, const char *name, int dnsclass,
+ int type, ares_callback callback, void *arg)
+{
+ struct qquery *qquery;
+ unsigned char *qbuf;
+ int qlen, rd, status;
+
+ /* Compose the query. */
+ rd = !(channel->flags & ARES_FLAG_NORECURSE);
+ status = ares_mkquery(name, dnsclass, type, channel->next_id, rd, &qbuf,
+ &qlen);
+ if (status != ARES_SUCCESS)
+ {
+ if (qbuf != NULL) free(qbuf);
+ callback(arg, status, 0, NULL, 0);
+ return;
+ }
+
+ channel->next_id = generate_unique_id(channel);
+
+ /* Allocate and fill in the query structure. */
+ qquery = malloc(sizeof(struct qquery));
+ if (!qquery)
+ {
+ ares_free_string(qbuf);
+ callback(arg, ARES_ENOMEM, 0, NULL, 0);
+ return;
+ }
+ qquery->callback = callback;
+ qquery->arg = arg;
+
+ /* Send it off. qcallback will be called when we get an answer. */
+ ares_send(channel, qbuf, qlen, qcallback, qquery);
+ ares_free_string(qbuf);
+}
+
+static void qcallback(void *arg, int status, int timeouts, unsigned char *abuf, int alen)
+{
+ struct qquery *qquery = (struct qquery *) arg;
+ unsigned int ancount;
+ int rcode;
+
+ if (status != ARES_SUCCESS)
+ qquery->callback(qquery->arg, status, timeouts, abuf, alen);
+ else
+ {
+ /* Pull the response code and answer count from the packet. */
+ rcode = DNS_HEADER_RCODE(abuf);
+ ancount = DNS_HEADER_ANCOUNT(abuf);
+
+ /* Convert errors. */
+ switch (rcode)
+ {
+ case NOERROR:
+ status = (ancount > 0) ? ARES_SUCCESS : ARES_ENODATA;
+ break;
+ case FORMERR:
+ status = ARES_EFORMERR;
+ break;
+ case SERVFAIL:
+ status = ARES_ESERVFAIL;
+ break;
+ case NXDOMAIN:
+ status = ARES_ENOTFOUND;
+ break;
+ case NOTIMP:
+ status = ARES_ENOTIMP;
+ break;
+ case REFUSED:
+ status = ARES_EREFUSED;
+ break;
+ }
+ qquery->callback(qquery->arg, status, timeouts, abuf, alen);
+ }
+ free(qquery);
+}
diff --git a/3rdParty/CAres/src/ares_rules.h b/3rdParty/CAres/src/ares_rules.h
new file mode 100644
index 0000000..65bc1eb
--- /dev/null
+++ b/3rdParty/CAres/src/ares_rules.h
@@ -0,0 +1,145 @@
+#ifndef __CARES_RULES_H
+#define __CARES_RULES_H
+
+/* $Id: ares_rules.h,v 1.3 2009-10-27 16:56:20 yangtse Exp $ */
+
+/* Copyright (C) 2009 by Daniel Stenberg et al
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. M.I.T. makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+/* ================================================================ */
+/* COMPILE TIME SANITY CHECKS */
+/* ================================================================ */
+
+/*
+ * NOTE 1:
+ * -------
+ *
+ * All checks done in this file are intentionally placed in a public
+ * header file which is pulled by ares.h when an application is
+ * being built using an already built c-ares library. Additionally
+ * this file is also included and used when building the library.
+ *
+ * If compilation fails on this file it is certainly sure that the
+ * problem is elsewhere. It could be a problem in the ares_build.h
+ * header file, or simply that you are using different compilation
+ * settings than those used to build the library.
+ *
+ * Nothing in this file is intended to be modified or adjusted by the
+ * c-ares library user nor by the c-ares library builder.
+ *
+ * Do not deactivate any check, these are done to make sure that the
+ * library is properly built and used.
+ *
+ * You can find further help on the c-ares development mailing list:
+ * http://cool.haxx.se/mailman/listinfo/c-ares/
+ *
+ * NOTE 2
+ * ------
+ *
+ * Some of the following compile time checks are based on the fact
+ * that the dimension of a constant array can not be a negative one.
+ * In this way if the compile time verification fails, the compilation
+ * will fail issuing an error. The error description wording is compiler
+ * dependent but it will be quite similar to one of the following:
+ *
+ * "negative subscript or subscript is too large"
+ * "array must have at least one element"
+ * "-1 is an illegal array size"
+ * "size of array is negative"
+ *
+ * If you are building an application which tries to use an already
+ * built c-ares library and you are getting this kind of errors on
+ * this file, it is a clear indication that there is a mismatch between
+ * how the library was built and how you are trying to use it for your
+ * application. Your already compiled or binary library provider is the
+ * only one who can give you the details you need to properly use it.
+ */
+
+/*
+ * Verify that some macros are actually defined.
+ */
+
+#ifndef CARES_SIZEOF_LONG
+# error "CARES_SIZEOF_LONG definition is missing!"
+ Error Compilation_aborted_CARES_SIZEOF_LONG_is_missing
+#endif
+
+#ifndef CARES_TYPEOF_ARES_SOCKLEN_T
+# error "CARES_TYPEOF_ARES_SOCKLEN_T definition is missing!"
+ Error Compilation_aborted_CARES_TYPEOF_ARES_SOCKLEN_T_is_missing
+#endif
+
+#ifndef CARES_SIZEOF_ARES_SOCKLEN_T
+# error "CARES_SIZEOF_ARES_SOCKLEN_T definition is missing!"
+ Error Compilation_aborted_CARES_SIZEOF_ARES_SOCKLEN_T_is_missing
+#endif
+
+/*
+ * Macros private to this header file.
+ */
+
+#define CareschkszEQ(t, s) sizeof(t) == s ? 1 : -1
+
+#define CareschkszGE(t1, t2) sizeof(t1) >= sizeof(t2) ? 1 : -1
+
+/*
+ * Verify that the size previously defined and expected for long
+ * is the same as the one reported by sizeof() at compile time.
+ */
+
+typedef char
+ __cares_rule_01__
+ [CareschkszEQ(long, CARES_SIZEOF_LONG)];
+
+/*
+ * Verify that the size previously defined and expected for
+ * ares_socklen_t is actually the the same as the one reported
+ * by sizeof() at compile time.
+ */
+
+typedef char
+ __cares_rule_02__
+ [CareschkszEQ(ares_socklen_t, CARES_SIZEOF_ARES_SOCKLEN_T)];
+
+/*
+ * Verify at compile time that the size of ares_socklen_t as reported
+ * by sizeof() is greater or equal than the one reported for int for
+ * the current compilation.
+ */
+
+typedef char
+ __cares_rule_03__
+ [CareschkszGE(ares_socklen_t, int)];
+
+/* ================================================================ */
+/* EXTERNALLY AND INTERNALLY VISIBLE DEFINITIONS */
+/* ================================================================ */
+
+/*
+ * Get rid of macros private to this header file.
+ */
+
+#undef CareschkszEQ
+#undef CareschkszGE
+
+/*
+ * Get rid of macros not intended to exist beyond this point.
+ */
+
+#undef CARES_PULL_WS2TCPIP_H
+#undef CARES_PULL_SYS_TYPES_H
+#undef CARES_PULL_SYS_SOCKET_H
+
+#undef CARES_TYPEOF_ARES_SOCKLEN_T
+
+#endif /* __CARES_RULES_H */
diff --git a/3rdParty/CAres/src/ares_search.c b/3rdParty/CAres/src/ares_search.c
new file mode 100644
index 0000000..9a44397
--- /dev/null
+++ b/3rdParty/CAres/src/ares_search.c
@@ -0,0 +1,323 @@
+/* $Id: ares_search.c,v 1.20 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+
+#include "ares.h"
+#include "ares_private.h"
+
+struct search_query {
+ /* Arguments passed to ares_search */
+ ares_channel channel;
+ char *name; /* copied into an allocated buffer */
+ int dnsclass;
+ int type;
+ ares_callback callback;
+ void *arg;
+
+ int status_as_is; /* error status from trying as-is */
+ int next_domain; /* next search domain to try */
+ int trying_as_is; /* current query is for name as-is */
+ int timeouts; /* number of timeouts we saw for this request */
+ int ever_got_nodata; /* did we ever get ARES_ENODATA along the way? */
+};
+
+static void search_callback(void *arg, int status, int timeouts,
+ unsigned char *abuf, int alen);
+static void end_squery(struct search_query *squery, int status,
+ unsigned char *abuf, int alen);
+static int cat_domain(const char *name, const char *domain, char **s);
+static int single_domain(ares_channel channel, const char *name, char **s);
+
+void ares_search(ares_channel channel, const char *name, int dnsclass,
+ int type, ares_callback callback, void *arg)
+{
+ struct search_query *squery;
+ char *s;
+ const char *p;
+ int status, ndots;
+
+ /* If name only yields one domain to search, then we don't have
+ * to keep extra state, so just do an ares_query().
+ */
+ status = single_domain(channel, name, &s);
+ if (status != ARES_SUCCESS)
+ {
+ callback(arg, status, 0, NULL, 0);
+ return;
+ }
+ if (s)
+ {
+ ares_query(channel, s, dnsclass, type, callback, arg);
+ free(s);
+ return;
+ }
+
+ /* Allocate a search_query structure to hold the state necessary for
+ * doing multiple lookups.
+ */
+ squery = malloc(sizeof(struct search_query));
+ if (!squery)
+ {
+ callback(arg, ARES_ENOMEM, 0, NULL, 0);
+ return;
+ }
+ squery->channel = channel;
+ squery->name = strdup(name);
+ if (!squery->name)
+ {
+ free(squery);
+ callback(arg, ARES_ENOMEM, 0, NULL, 0);
+ return;
+ }
+ squery->dnsclass = dnsclass;
+ squery->type = type;
+ squery->status_as_is = -1;
+ squery->callback = callback;
+ squery->arg = arg;
+ squery->timeouts = 0;
+ squery->ever_got_nodata = 0;
+
+ /* Count the number of dots in name. */
+ ndots = 0;
+ for (p = name; *p; p++)
+ {
+ if (*p == '.')
+ ndots++;
+ }
+
+ /* If ndots is at least the channel ndots threshold (usually 1),
+ * then we try the name as-is first. Otherwise, we try the name
+ * as-is last.
+ */
+ if (ndots >= channel->ndots)
+ {
+ /* Try the name as-is first. */
+ squery->next_domain = 0;
+ squery->trying_as_is = 1;
+ ares_query(channel, name, dnsclass, type, search_callback, squery);
+ }
+ else
+ {
+ /* Try the name as-is last; start with the first search domain. */
+ squery->next_domain = 1;
+ squery->trying_as_is = 0;
+ status = cat_domain(name, channel->domains[0], &s);
+ if (status == ARES_SUCCESS)
+ {
+ ares_query(channel, s, dnsclass, type, search_callback, squery);
+ free(s);
+ }
+ else
+ {
+ /* failed, free the malloc()ed memory */
+ free(squery->name);
+ free(squery);
+ callback(arg, status, 0, NULL, 0);
+ }
+ }
+}
+
+static void search_callback(void *arg, int status, int timeouts,
+ unsigned char *abuf, int alen)
+{
+ struct search_query *squery = (struct search_query *) arg;
+ ares_channel channel = squery->channel;
+ char *s;
+
+ squery->timeouts += timeouts;
+
+ /* Stop searching unless we got a non-fatal error. */
+ if (status != ARES_ENODATA && status != ARES_ESERVFAIL
+ && status != ARES_ENOTFOUND)
+ end_squery(squery, status, abuf, alen);
+ else
+ {
+ /* Save the status if we were trying as-is. */
+ if (squery->trying_as_is)
+ squery->status_as_is = status;
+
+ /*
+ * If we ever get ARES_ENODATA along the way, record that; if the search
+ * should run to the very end and we got at least one ARES_ENODATA,
+ * then callers like ares_gethostbyname() may want to try a T_A search
+ * even if the last domain we queried for T_AAAA resource records
+ * returned ARES_ENOTFOUND.
+ */
+ if (status == ARES_ENODATA)
+ squery->ever_got_nodata = 1;
+
+ if (squery->next_domain < channel->ndomains)
+ {
+ /* Try the next domain. */
+ status = cat_domain(squery->name,
+ channel->domains[squery->next_domain], &s);
+ if (status != ARES_SUCCESS)
+ end_squery(squery, status, NULL, 0);
+ else
+ {
+ squery->trying_as_is = 0;
+ squery->next_domain++;
+ ares_query(channel, s, squery->dnsclass, squery->type,
+ search_callback, squery);
+ free(s);
+ }
+ }
+ else if (squery->status_as_is == -1)
+ {
+ /* Try the name as-is at the end. */
+ squery->trying_as_is = 1;
+ ares_query(channel, squery->name, squery->dnsclass, squery->type,
+ search_callback, squery);
+ }
+ else {
+ if (squery->status_as_is == ARES_ENOTFOUND && squery->ever_got_nodata) {
+ end_squery(squery, ARES_ENODATA, NULL, 0);
+ }
+ else
+ end_squery(squery, squery->status_as_is, NULL, 0);
+ }
+ }
+}
+
+static void end_squery(struct search_query *squery, int status,
+ unsigned char *abuf, int alen)
+{
+ squery->callback(squery->arg, status, squery->timeouts, abuf, alen);
+ free(squery->name);
+ free(squery);
+}
+
+/* Concatenate two domains. */
+static int cat_domain(const char *name, const char *domain, char **s)
+{
+ size_t nlen = strlen(name);
+ size_t dlen = strlen(domain);
+
+ *s = malloc(nlen + 1 + dlen + 1);
+ if (!*s)
+ return ARES_ENOMEM;
+ memcpy(*s, name, nlen);
+ (*s)[nlen] = '.';
+ memcpy(*s + nlen + 1, domain, dlen);
+ (*s)[nlen + 1 + dlen] = 0;
+ return ARES_SUCCESS;
+}
+
+/* Determine if this name only yields one query. If it does, set *s to
+ * the string we should query, in an allocated buffer. If not, set *s
+ * to NULL.
+ */
+static int single_domain(ares_channel channel, const char *name, char **s)
+{
+ size_t len = strlen(name);
+ const char *hostaliases;
+ FILE *fp;
+ char *line = NULL;
+ int status;
+ size_t linesize;
+ const char *p, *q;
+ int error;
+
+ /* If the name contains a trailing dot, then the single query is the name
+ * sans the trailing dot.
+ */
+ if (name[len - 1] == '.')
+ {
+ *s = strdup(name);
+ return (*s) ? ARES_SUCCESS : ARES_ENOMEM;
+ }
+
+ if (!(channel->flags & ARES_FLAG_NOALIASES) && !strchr(name, '.'))
+ {
+ /* The name might be a host alias. */
+ hostaliases = getenv("HOSTALIASES");
+ if (hostaliases)
+ {
+ fp = fopen(hostaliases, "r");
+ if (fp)
+ {
+ while ((status = ares__read_line(fp, &line, &linesize))
+ == ARES_SUCCESS)
+ {
+ if (strncasecmp(line, name, len) != 0 ||
+ !ISSPACE(line[len]))
+ continue;
+ p = line + len;
+ while (ISSPACE(*p))
+ p++;
+ if (*p)
+ {
+ q = p + 1;
+ while (*q && !ISSPACE(*q))
+ q++;
+ *s = malloc(q - p + 1);
+ if (*s)
+ {
+ memcpy(*s, p, q - p);
+ (*s)[q - p] = 0;
+ }
+ free(line);
+ fclose(fp);
+ return (*s) ? ARES_SUCCESS : ARES_ENOMEM;
+ }
+ }
+ free(line);
+ fclose(fp);
+ if (status != ARES_SUCCESS)
+ return status;
+ }
+ else
+ {
+ error = errno;
+ switch(error)
+ {
+ case ENOENT:
+ case ESRCH:
+ break;
+ default:
+ DEBUGF(fprintf(stderr, "fopen() failed with error: %d %s\n",
+ error, strerror(error)));
+ DEBUGF(fprintf(stderr, "Error opening file: %s\n",
+ hostaliases));
+ *s = NULL;
+ return ARES_EFILE;
+ }
+ }
+ }
+ }
+
+ if (channel->flags & ARES_FLAG_NOSEARCH || channel->ndomains == 0)
+ {
+ /* No domain search to do; just try the name as-is. */
+ *s = strdup(name);
+ return (*s) ? ARES_SUCCESS : ARES_ENOMEM;
+ }
+
+ *s = NULL;
+ return ARES_SUCCESS;
+}
diff --git a/3rdParty/CAres/src/ares_send.c b/3rdParty/CAres/src/ares_send.c
new file mode 100644
index 0000000..eb35b47
--- /dev/null
+++ b/3rdParty/CAres/src/ares_send.c
@@ -0,0 +1,135 @@
+/* $Id: ares_send.c,v 1.21 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include "ares.h"
+#include "ares_dns.h"
+#include "ares_private.h"
+
+void ares_send(ares_channel channel, const unsigned char *qbuf, int qlen,
+ ares_callback callback, void *arg)
+{
+ struct query *query;
+ int i;
+ struct timeval now;
+
+ /* Verify that the query is at least long enough to hold the header. */
+ if (qlen < HFIXEDSZ || qlen >= (1 << 16))
+ {
+ callback(arg, ARES_EBADQUERY, 0, NULL, 0);
+ return;
+ }
+
+ /* Allocate space for query and allocated fields. */
+ query = malloc(sizeof(struct query));
+ if (!query)
+ {
+ callback(arg, ARES_ENOMEM, 0, NULL, 0);
+ return;
+ }
+ query->tcpbuf = malloc(qlen + 2);
+ if (!query->tcpbuf)
+ {
+ free(query);
+ callback(arg, ARES_ENOMEM, 0, NULL, 0);
+ return;
+ }
+ query->server_info = malloc(channel->nservers *
+ sizeof(query->server_info[0]));
+ if (!query->server_info)
+ {
+ free(query->tcpbuf);
+ free(query);
+ callback(arg, ARES_ENOMEM, 0, NULL, 0);
+ return;
+ }
+
+ /* Compute the query ID. Start with no timeout. */
+ query->qid = (unsigned short)DNS_HEADER_QID(qbuf);
+ query->timeout.tv_sec = 0;
+ query->timeout.tv_usec = 0;
+
+ /* Form the TCP query buffer by prepending qlen (as two
+ * network-order bytes) to qbuf.
+ */
+ query->tcpbuf[0] = (unsigned char)((qlen >> 8) & 0xff);
+ query->tcpbuf[1] = (unsigned char)(qlen & 0xff);
+ memcpy(query->tcpbuf + 2, qbuf, qlen);
+ query->tcplen = qlen + 2;
+
+ /* Fill in query arguments. */
+ query->qbuf = query->tcpbuf + 2;
+ query->qlen = qlen;
+ query->callback = callback;
+ query->arg = arg;
+
+ /* Initialize query status. */
+ query->try = 0;
+
+ /* Choose the server to send the query to. If rotation is enabled, keep track
+ * of the next server we want to use. */
+ query->server = channel->last_server;
+ if (channel->rotate == 1)
+ channel->last_server = (channel->last_server + 1) % channel->nservers;
+
+ for (i = 0; i < channel->nservers; i++)
+ {
+ query->server_info[i].skip_server = 0;
+ query->server_info[i].tcp_connection_generation = 0;
+ }
+ query->using_tcp = (channel->flags & ARES_FLAG_USEVC) || qlen > PACKETSZ;
+ query->error_status = ARES_ECONNREFUSED;
+ query->timeouts = 0;
+
+ /* Initialize our list nodes. */
+ ares__init_list_node(&(query->queries_by_qid), query);
+ ares__init_list_node(&(query->queries_by_timeout), query);
+ ares__init_list_node(&(query->queries_to_server), query);
+ ares__init_list_node(&(query->all_queries), query);
+
+ /* Chain the query into the list of all queries. */
+ ares__insert_in_list(&(query->all_queries), &(channel->all_queries));
+ /* Keep track of queries bucketed by qid, so we can process DNS
+ * responses quickly.
+ */
+ ares__insert_in_list(
+ &(query->queries_by_qid),
+ &(channel->queries_by_qid[query->qid % ARES_QID_TABLE_SIZE]));
+
+ /* Perform the first query action. */
+ now = ares__tvnow();
+ ares__send_query(channel, query, &now);
+}
diff --git a/3rdParty/CAres/src/ares_setup.h b/3rdParty/CAres/src/ares_setup.h
new file mode 100644
index 0000000..5ce9398
--- /dev/null
+++ b/3rdParty/CAres/src/ares_setup.h
@@ -0,0 +1,198 @@
+#ifndef HEADER_CARES_SETUP_H
+#define HEADER_CARES_SETUP_H
+
+/* $Id: ares_setup.h,v 1.2 2009-11-14 18:51:37 yangtse Exp $ */
+
+/* Copyright (C) 2004 - 2009 by Daniel Stenberg et al
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. M.I.T. makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+/*
+ * Define WIN32 when build target is Win32 API
+ */
+
+#if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32)
+#define WIN32
+#endif
+
+/*
+ * Include configuration script results or hand-crafted
+ * configuration file for platforms which lack config tool.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "ares_config.h"
+#else
+
+#ifdef WIN32
+#include "config-win32.h"
+#endif
+
+#endif /* HAVE_CONFIG_H */
+
+/* ================================================================ */
+/* Definition of preprocessor macros/symbols which modify compiler */
+/* behaviour or generated code characteristics must be done here, */
+/* as appropriate, before any system header file is included. It is */
+/* also possible to have them defined in the config file included */
+/* before this point. As a result of all this we frown inclusion of */
+/* system header files in our config files, avoid this at any cost. */
+/* ================================================================ */
+
+/*
+ * AIX 4.3 and newer needs _THREAD_SAFE defined to build
+ * proper reentrant code. Others may also need it.
+ */
+
+#ifdef NEED_THREAD_SAFE
+# ifndef _THREAD_SAFE
+# define _THREAD_SAFE
+# endif
+#endif
+
+/*
+ * Tru64 needs _REENTRANT set for a few function prototypes and
+ * things to appear in the system header files. Unixware needs it
+ * to build proper reentrant code. Others may also need it.
+ */
+
+#ifdef NEED_REENTRANT
+# ifndef _REENTRANT
+# define _REENTRANT
+# endif
+#endif
+
+/* ================================================================ */
+/* If you need to include a system header file for your platform, */
+/* please, do it beyond the point further indicated in this file. */
+/* ================================================================ */
+
+/*
+ * c-ares external interface definitions are also used internally,
+ * and might also include required system header files to define them.
+ */
+
+#include <ares_build.h>
+
+/*
+ * Compile time sanity checks must also be done when building the library.
+ */
+
+#include <ares_rules.h>
+
+/* ================================================================= */
+/* No system header file shall be included in this file before this */
+/* point. The only allowed ones are those included from ares_build.h */
+/* ================================================================= */
+
+/*
+ * Include header files for windows builds before redefining anything.
+ * Use this preproessor block only to include or exclude windows.h,
+ * winsock2.h, ws2tcpip.h or winsock.h. Any other windows thing belongs
+ * to any other further and independent block. Under Cygwin things work
+ * just as under linux (e.g. <sys/socket.h>) and the winsock headers should
+ * never be included when __CYGWIN__ is defined. configure script takes
+ * care of this, not defining HAVE_WINDOWS_H, HAVE_WINSOCK_H, HAVE_WINSOCK2_H,
+ * neither HAVE_WS2TCPIP_H when __CYGWIN__ is defined.
+ */
+
+#ifdef HAVE_WINDOWS_H
+# ifndef WIN32_LEAN_AND_MEAN
+# define WIN32_LEAN_AND_MEAN
+# endif
+# include <windows.h>
+# ifdef HAVE_WINSOCK2_H
+# include <winsock2.h>
+# ifdef HAVE_WS2TCPIP_H
+# include <ws2tcpip.h>
+# endif
+# else
+# ifdef HAVE_WINSOCK_H
+# include <winsock.h>
+# endif
+# endif
+#endif
+
+/*
+ * Define USE_WINSOCK to 2 if we have and use WINSOCK2 API, else
+ * define USE_WINSOCK to 1 if we have and use WINSOCK API, else
+ * undefine USE_WINSOCK.
+ */
+
+#undef USE_WINSOCK
+
+#ifdef HAVE_WINSOCK2_H
+# define USE_WINSOCK 2
+#else
+# ifdef HAVE_WINSOCK_H
+# define USE_WINSOCK 1
+# endif
+#endif
+
+/*
+ * Work-arounds for systems without configure support
+ */
+
+#ifndef HAVE_CONFIG_H
+
+#if !defined(HAVE_SYS_TIME_H) && !defined(_MSC_VER) && !defined(__WATCOMC__)
+#define HAVE_SYS_TIME_H
+#endif
+
+#if !defined(HAVE_UNISTD_H) && !defined(_MSC_VER)
+#define HAVE_UNISTD_H 1
+#endif
+
+#if !defined(HAVE_SYS_UIO_H) && !defined(WIN32) && !defined(MSDOS)
+#define HAVE_SYS_UIO_H
+#endif
+
+#endif /* HAVE_CONFIG_H */
+
+#ifdef __POCC__
+# include <sys/types.h>
+# include <unistd.h>
+# define ESRCH 3
+#endif
+
+/*
+ * Recent autoconf versions define these symbols in ares_config.h. We don't
+ * want them (since they collide with the libcurl ones when we build
+ * --enable-debug) so we undef them again here.
+ */
+
+#undef PACKAGE_STRING
+#undef PACKAGE_TARNAME
+#undef PACKAGE_VERSION
+#undef PACKAGE_BUGREPORT
+#undef PACKAGE_NAME
+#undef VERSION
+#undef PACKAGE
+
+/* IPv6 compatibility */
+#if !defined(HAVE_AF_INET6)
+#if defined(HAVE_PF_INET6)
+#define AF_INET6 PF_INET6
+#else
+#define AF_INET6 AF_MAX+1
+#endif
+#endif
+
+/*
+ * Include macros and defines that should only be processed once.
+ */
+
+#ifndef __SETUP_ONCE_H
+#include "setup_once.h"
+#endif
+
+#endif /* HEADER_CARES_SETUP_H */
diff --git a/3rdParty/CAres/src/ares_strcasecmp.c b/3rdParty/CAres/src/ares_strcasecmp.c
new file mode 100644
index 0000000..8329e30
--- /dev/null
+++ b/3rdParty/CAres/src/ares_strcasecmp.c
@@ -0,0 +1,67 @@
+
+/* $Id: ares_strcasecmp.c,v 1.2 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+#include "ares_strcasecmp.h"
+
+#ifndef HAVE_STRCASECMP
+int ares_strcasecmp(const char *a, const char *b)
+{
+#if defined(HAVE_STRCMPI)
+ return strcmpi(a, b);
+#elif defined(HAVE_STRICMP)
+ return stricmp(a, b);
+#else
+ size_t i;
+
+ for (i = 0; i < (size_t)-1; i++) {
+ int c1 = ISUPPER(a[i]) ? tolower(a[i]) : a[i];
+ int c2 = ISUPPER(b[i]) ? tolower(b[i]) : b[i];
+ if (c1 != c2)
+ return c1-c2;
+ if (!c1)
+ break;
+ }
+ return 0;
+#endif
+}
+#endif
+
+#ifndef HAVE_STRNCASECMP
+int ares_strncasecmp(const char *a, const char *b, size_t n)
+{
+#if defined(HAVE_STRNCMPI)
+ return strncmpi(a, b, n);
+#elif defined(HAVE_STRNICMP)
+ return strnicmp(a, b, n);
+#else
+ size_t i;
+
+ for (i = 0; i < n; i++) {
+ int c1 = ISUPPER(a[i]) ? tolower(a[i]) : a[i];
+ int c2 = ISUPPER(b[i]) ? tolower(b[i]) : b[i];
+ if (c1 != c2)
+ return c1-c2;
+ if (!c1)
+ break;
+ }
+ return 0;
+#endif
+}
+#endif
+
diff --git a/3rdParty/CAres/src/ares_strcasecmp.h b/3rdParty/CAres/src/ares_strcasecmp.h
new file mode 100644
index 0000000..db170be
--- /dev/null
+++ b/3rdParty/CAres/src/ares_strcasecmp.h
@@ -0,0 +1,31 @@
+#ifndef HEADER_CARES_STRCASECMP_H
+#define HEADER_CARES_STRCASECMP_H
+
+/* $Id: ares_strcasecmp.h,v 1.2 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifndef HAVE_STRCASECMP
+extern int ares_strcasecmp(const char *a, const char *b);
+#endif
+
+#ifndef HAVE_STRNCASECMP
+extern int ares_strncasecmp(const char *a, const char *b, size_t n);
+#endif
+
+#endif /* HEADER_CARES_STRCASECMP_H */
diff --git a/3rdParty/CAres/src/ares_strdup.c b/3rdParty/CAres/src/ares_strdup.c
new file mode 100644
index 0000000..d3f2b22
--- /dev/null
+++ b/3rdParty/CAres/src/ares_strdup.c
@@ -0,0 +1,43 @@
+
+/* $Id: ares_strdup.c,v 1.3 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+#include "ares_strdup.h"
+
+#ifndef HAVE_STRDUP
+char *ares_strdup(const char *s1)
+{
+ size_t sz;
+ char * s2;
+
+ if(s1) {
+ sz = strlen(s1);
+ if(sz < (size_t)-1) {
+ sz++;
+ if(sz < ((size_t)-1) / sizeof(char)) {
+ s2 = malloc(sz * sizeof(char));
+ if(s2) {
+ memcpy(s2, s1, sz * sizeof(char));
+ return s2;
+ }
+ }
+ }
+ }
+ return (char *)NULL;
+}
+#endif
diff --git a/3rdParty/CAres/src/ares_strdup.h b/3rdParty/CAres/src/ares_strdup.h
new file mode 100644
index 0000000..f88f8d1
--- /dev/null
+++ b/3rdParty/CAres/src/ares_strdup.h
@@ -0,0 +1,27 @@
+#ifndef HEADER_CARES_STRDUP_H
+#define HEADER_CARES_STRDUP_H
+
+/* $Id: ares_strdup.h,v 1.3 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifndef HAVE_STRDUP
+extern char *ares_strdup(const char *s1);
+#endif
+
+#endif /* HEADER_CARES_STRDUP_H */
diff --git a/3rdParty/CAres/src/ares_strerror.c b/3rdParty/CAres/src/ares_strerror.c
new file mode 100644
index 0000000..57fcf8f
--- /dev/null
+++ b/3rdParty/CAres/src/ares_strerror.c
@@ -0,0 +1,57 @@
+/* $Id: ares_strerror.c,v 1.18 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+#include <assert.h>
+#include "ares.h"
+
+const char *ares_strerror(int code)
+{
+ /* Return a string literal from a table. */
+ const char *errtext[] = {
+ "Successful completion",
+ "DNS server returned answer with no data",
+ "DNS server claims query was misformatted",
+ "DNS server returned general failure",
+ "Domain name not found",
+ "DNS server does not implement requested operation",
+ "DNS server refused query",
+ "Misformatted DNS query",
+ "Misformatted domain name",
+ "Unsupported address family",
+ "Misformatted DNS reply",
+ "Could not contact DNS servers",
+ "Timeout while contacting DNS servers",
+ "End of file",
+ "Error reading file",
+ "Out of memory",
+ "Channel is being destroyed",
+ "Misformatted string",
+ "Illegal flags specified",
+ "Given hostname is not numeric",
+ "Illegal hints flags specified",
+ "c-ares library initialization not yet performed",
+ "Error loading iphlpapi.dll",
+ "Could not find GetNetworkParams function",
+ "DNS query cancelled"
+ };
+
+ if(code >= 0 && code < (int)(sizeof(errtext) / sizeof(*errtext)))
+ return errtext[code];
+ else
+ return "unknown";
+}
diff --git a/3rdParty/CAres/src/ares_timeout.c b/3rdParty/CAres/src/ares_timeout.c
new file mode 100644
index 0000000..a522de7
--- /dev/null
+++ b/3rdParty/CAres/src/ares_timeout.c
@@ -0,0 +1,81 @@
+/* $Id: ares_timeout.c,v 1.13 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+
+#include <time.h>
+
+#include "ares.h"
+#include "ares_private.h"
+
+/* WARNING: Beware that this is linear in the number of outstanding
+ * requests! You are probably far better off just calling ares_process()
+ * once per second, rather than calling ares_timeout() to figure out
+ * when to next call ares_process().
+ */
+struct timeval *ares_timeout(ares_channel channel, struct timeval *maxtv,
+ struct timeval *tvbuf)
+{
+ struct query *query;
+ struct list_node* list_head;
+ struct list_node* list_node;
+ struct timeval now;
+ struct timeval nextstop;
+ long offset, min_offset;
+
+ /* No queries, no timeout (and no fetch of the current time). */
+ if (ares__is_list_empty(&(channel->all_queries)))
+ return maxtv;
+
+ /* Find the minimum timeout for the current set of queries. */
+ now = ares__tvnow();
+ min_offset = -1;
+
+ list_head = &(channel->all_queries);
+ for (list_node = list_head->next; list_node != list_head;
+ list_node = list_node->next)
+ {
+ query = list_node->data;
+ if (query->timeout.tv_sec == 0)
+ continue;
+ offset = ares__timeoffset(&now, &query->timeout);
+ if (offset < 0)
+ offset = 0;
+ if (min_offset == -1 || offset < min_offset)
+ min_offset = offset;
+ }
+
+ if(min_offset != -1) {
+ nextstop.tv_sec = min_offset/1000;
+ nextstop.tv_usec = (min_offset%1000)*1000;
+ }
+
+ /* If we found a minimum timeout and it's sooner than the one specified in
+ * maxtv (if any), return it. Otherwise go with maxtv.
+ */
+ if (min_offset != -1 && (!maxtv || ares__timedout(maxtv, &nextstop)))
+ {
+ *tvbuf = nextstop;
+ return tvbuf;
+ }
+ else
+ return maxtv;
+}
diff --git a/3rdParty/CAres/src/ares_version.c b/3rdParty/CAres/src/ares_version.c
new file mode 100644
index 0000000..3007150
--- /dev/null
+++ b/3rdParty/CAres/src/ares_version.c
@@ -0,0 +1,12 @@
+/* $Id: ares_version.c,v 1.5 2009-11-02 11:55:53 yangtse Exp $ */
+
+#include "ares_setup.h"
+#include "ares.h"
+
+const char *ares_version(int *version)
+{
+ if(version)
+ *version = ARES_VERSION;
+
+ return ARES_VERSION_STR;
+}
diff --git a/3rdParty/CAres/src/ares_version.h b/3rdParty/CAres/src/ares_version.h
new file mode 100644
index 0000000..d3a6295
--- /dev/null
+++ b/3rdParty/CAres/src/ares_version.h
@@ -0,0 +1,22 @@
+/* $Id: ares_version.h,v 1.19 2009-11-23 12:03:33 yangtse Exp $ */
+
+#ifndef ARES__VERSION_H
+#define ARES__VERSION_H
+
+#define ARES_VERSION_MAJOR 1
+#define ARES_VERSION_MINOR 7
+#define ARES_VERSION_PATCH 0
+#define ARES_VERSION ((ARES_VERSION_MAJOR<<16)|\
+ (ARES_VERSION_MINOR<<8)|\
+ (ARES_VERSION_PATCH))
+#define ARES_VERSION_STR "1.7.0"
+
+#if (ARES_VERSION >= 0x010700)
+# define CARES_HAVE_ARES_LIBRARY_INIT 1
+# define CARES_HAVE_ARES_LIBRARY_CLEANUP 1
+#else
+# undef CARES_HAVE_ARES_LIBRARY_INIT
+# undef CARES_HAVE_ARES_LIBRARY_CLEANUP
+#endif
+
+#endif
diff --git a/3rdParty/CAres/src/ares_writev.c b/3rdParty/CAres/src/ares_writev.c
new file mode 100644
index 0000000..855ce14
--- /dev/null
+++ b/3rdParty/CAres/src/ares_writev.c
@@ -0,0 +1,80 @@
+
+/* $Id: ares_writev.c,v 1.3 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_LIMITS_H
+# include <limits.h>
+#endif
+
+#include "ares.h"
+#include "ares_private.h"
+
+#ifndef HAVE_WRITEV
+ssize_t ares_writev(ares_socket_t s, const struct iovec *iov, int iovcnt)
+{
+ char *buffer, *bp;
+ int i;
+ size_t bytes = 0;
+ ssize_t result;
+
+ /* Validate iovcnt */
+ if (iovcnt <= 0)
+ {
+ SET_ERRNO(EINVAL);
+ return (-1);
+ }
+
+ /* Validate and find the sum of the iov_len values in the iov array */
+ for (i = 0; i < iovcnt; i++)
+ {
+ if (iov[i].iov_len > INT_MAX - bytes)
+ {
+ SET_ERRNO(EINVAL);
+ return (-1);
+ }
+ bytes += iov[i].iov_len;
+ }
+
+ if (bytes == 0)
+ return (0);
+
+ /* Allocate a temporary buffer to hold the data */
+ buffer = malloc(bytes);
+ if (!buffer)
+ {
+ SET_ERRNO(ENOMEM);
+ return (-1);
+ }
+
+ /* Copy the data into buffer */
+ for (bp = buffer, i = 0; i < iovcnt; ++i)
+ {
+ memcpy (bp, iov[i].iov_base, iov[i].iov_len);
+ bp += iov[i].iov_len;
+ }
+
+ /* Send buffer contents */
+ result = swrite(s, buffer, bytes);
+
+ free(buffer);
+
+ return (result);
+}
+#endif
+
diff --git a/3rdParty/CAres/src/ares_writev.h b/3rdParty/CAres/src/ares_writev.h
new file mode 100644
index 0000000..631baf8
--- /dev/null
+++ b/3rdParty/CAres/src/ares_writev.h
@@ -0,0 +1,37 @@
+#ifndef HEADER_CARES_WRITEV_H
+#define HEADER_CARES_WRITEV_H
+
+/* $Id: ares_writev.h,v 1.2 2009-11-02 11:55:53 yangtse Exp $ */
+
+/* Copyright 1998 by the Massachusetts Institute of Technology.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#include "ares_setup.h"
+#include "ares.h"
+
+#ifndef HAVE_WRITEV
+
+/* Structure for scatter/gather I/O. */
+struct iovec
+{
+ void *iov_base; /* Pointer to data. */
+ size_t iov_len; /* Length of data. */
+};
+
+extern ssize_t ares_writev(ares_socket_t s, const struct iovec *iov, int iovcnt);
+
+#endif
+
+#endif /* HEADER_CARES_WRITEV_H */
diff --git a/3rdParty/CAres/src/bitncmp.c b/3rdParty/CAres/src/bitncmp.c
new file mode 100644
index 0000000..f36ffaa
--- /dev/null
+++ b/3rdParty/CAres/src/bitncmp.c
@@ -0,0 +1,60 @@
+/* $Id: bitncmp.c,v 1.8 2009-11-02 11:55:54 yangtse Exp $ */
+
+/*
+ * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (c) 1996,1999 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+ * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef HAVE_BITNCMP
+
+#include "ares_setup.h"
+#include "bitncmp.h"
+
+/*
+ * int
+ * bitncmp(l, r, n)
+ * compare bit masks l and r, for n bits.
+ * return:
+ * -1, 1, or 0 in the libc tradition.
+ * note:
+ * network byte order assumed. this means 192.5.5.240/28 has
+ * 0x11110000 in its fourth octet.
+ * author:
+ * Paul Vixie (ISC), June 1996
+ */
+int
+ares_bitncmp(const void *l, const void *r, int n) {
+ unsigned int lb, rb;
+ int x, b;
+
+ b = n / 8;
+ x = memcmp(l, r, b);
+ if (x || (n % 8) == 0)
+ return (x);
+
+ lb = ((const unsigned char *)l)[b];
+ rb = ((const unsigned char *)r)[b];
+ for (b = n % 8; b > 0; b--) {
+ if ((lb & 0x80) != (rb & 0x80)) {
+ if (lb & 0x80)
+ return (1);
+ return (-1);
+ }
+ lb <<= 1;
+ rb <<= 1;
+ }
+ return (0);
+}
+#endif
diff --git a/3rdParty/CAres/src/bitncmp.h b/3rdParty/CAres/src/bitncmp.h
new file mode 100644
index 0000000..4805683
--- /dev/null
+++ b/3rdParty/CAres/src/bitncmp.h
@@ -0,0 +1,27 @@
+#ifndef __ARES_BITNCMP_H
+#define __ARES_BITNCMP_H
+
+/* $Id: bitncmp.h,v 1.3 2007-11-19 15:47:01 bagder Exp $ */
+
+/* Copyright (C) 2005 by Dominick Meglio
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#ifndef HAVE_BITNCMP
+int ares_bitncmp(const void *l, const void *r, int n);
+#else
+#define ares_bitncmp(x,y,z) bitncmp(x,y,z)
+#endif
+
+#endif /* __ARES_BITNCMP_H */
diff --git a/3rdParty/CAres/src/config-win32.h b/3rdParty/CAres/src/config-win32.h
new file mode 100644
index 0000000..295df81
--- /dev/null
+++ b/3rdParty/CAres/src/config-win32.h
@@ -0,0 +1,341 @@
+#ifndef __ARES_CONFIG_WIN32_H
+#define __ARES_CONFIG_WIN32_H
+
+/* $Id: config-win32.h,v 1.32 2009-10-27 16:38:42 yangtse Exp $ */
+
+/* Copyright (C) 2004 - 2008 by Daniel Stenberg et al
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. M.I.T. makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+/* ================================================================ */
+/* ares/config-win32.h - Hand crafted config file for Windows */
+/* ================================================================ */
+
+/* ---------------------------------------------------------------- */
+/* HEADER FILES */
+/* ---------------------------------------------------------------- */
+
+/* Define if you have the <getopt.h> header file. */
+#if defined(__MINGW32__) || defined(__POCC__)
+#define HAVE_GETOPT_H 1
+#endif
+
+/* Define if you have the <limits.h> header file. */
+#define HAVE_LIMITS_H 1
+
+/* Define if you have the <process.h> header file. */
+#ifndef __SALFORDC__
+#define HAVE_PROCESS_H 1
+#endif
+
+/* Define if you have the <signal.h> header file. */
+#define HAVE_SIGNAL_H 1
+
+/* Define if you have the <sys/time.h> header file */
+/* #define HAVE_SYS_TIME_H 1 */
+
+/* Define if you have the <time.h> header file. */
+#define HAVE_TIME_H 1
+
+/* Define if you have the <unistd.h> header file. */
+#if defined(__MINGW32__) || defined(__WATCOMC__) || defined(__LCC__) || \
+ defined(__POCC__)
+#define HAVE_UNISTD_H 1
+#endif
+
+/* Define if you have the <windows.h> header file. */
+#define HAVE_WINDOWS_H 1
+
+/* Define if you have the <winsock.h> header file. */
+#define HAVE_WINSOCK_H 1
+
+/* Define if you have the <winsock2.h> header file. */
+#ifndef __SALFORDC__
+#define HAVE_WINSOCK2_H 1
+#endif
+
+/* Define if you have the <ws2tcpip.h> header file. */
+#ifndef __SALFORDC__
+#define HAVE_WS2TCPIP_H 1
+#endif
+
+/* ---------------------------------------------------------------- */
+/* OTHER HEADER INFO */
+/* ---------------------------------------------------------------- */
+
+/* Define if sig_atomic_t is an available typedef. */
+#define HAVE_SIG_ATOMIC_T 1
+
+/* Define if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Define if you can safely include both <sys/time.h> and <time.h>. */
+/* #define TIME_WITH_SYS_TIME 1 */
+
+/* ---------------------------------------------------------------- */
+/* FUNCTIONS */
+/* ---------------------------------------------------------------- */
+
+/* Define if you have the gethostname function. */
+#define HAVE_GETHOSTNAME 1
+
+/* Define if you have the ioctlsocket function. */
+#define HAVE_IOCTLSOCKET 1
+
+/* Define if you have a working ioctlsocket FIONBIO function. */
+#define HAVE_IOCTLSOCKET_FIONBIO 1
+
+/* Define if you have the strcasecmp function. */
+/* #define HAVE_STRCASECMP 1 */
+
+/* Define if you have the strdup function. */
+#define HAVE_STRDUP 1
+
+/* Define if you have the stricmp function. */
+#define HAVE_STRICMP 1
+
+/* Define if you have the strncasecmp function. */
+/* #define HAVE_STRNCASECMP 1 */
+
+/* Define if you have the strnicmp function. */
+#define HAVE_STRNICMP 1
+
+/* Define if you have the recv function. */
+#define HAVE_RECV 1
+
+/* Define to the type of arg 1 for recv. */
+#define RECV_TYPE_ARG1 SOCKET
+
+/* Define to the type of arg 2 for recv. */
+#define RECV_TYPE_ARG2 char *
+
+/* Define to the type of arg 3 for recv. */
+#define RECV_TYPE_ARG3 int
+
+/* Define to the type of arg 4 for recv. */
+#define RECV_TYPE_ARG4 int
+
+/* Define to the function return type for recv. */
+#define RECV_TYPE_RETV int
+
+/* Define if you have the recvfrom function. */
+#define HAVE_RECVFROM 1
+
+/* Define to the type of arg 1 for recvfrom. */
+#define RECVFROM_TYPE_ARG1 SOCKET
+
+/* Define to the type pointed by arg 2 for recvfrom. */
+#define RECVFROM_TYPE_ARG2 char
+
+/* Define to the type of arg 3 for recvfrom. */
+#define RECVFROM_TYPE_ARG3 int
+
+/* Define to the type of arg 4 for recvfrom. */
+#define RECVFROM_TYPE_ARG4 int
+
+/* Define to the type pointed by arg 5 for recvfrom. */
+#define RECVFROM_TYPE_ARG5 struct sockaddr
+
+/* Define to the type pointed by arg 6 for recvfrom. */
+#define RECVFROM_TYPE_ARG6 int
+
+/* Define to the function return type for recvfrom. */
+#define RECVFROM_TYPE_RETV int
+
+/* Define if you have the send function. */
+#define HAVE_SEND 1
+
+/* Define to the type of arg 1 for send. */
+#define SEND_TYPE_ARG1 SOCKET
+
+/* Define to the type qualifier of arg 2 for send. */
+#define SEND_QUAL_ARG2 const
+
+/* Define to the type of arg 2 for send. */
+#define SEND_TYPE_ARG2 char *
+
+/* Define to the type of arg 3 for send. */
+#define SEND_TYPE_ARG3 int
+
+/* Define to the type of arg 4 for send. */
+#define SEND_TYPE_ARG4 int
+
+/* Define to the function return type for send. */
+#define SEND_TYPE_RETV int
+
+/* Specifics for the Watt-32 tcp/ip stack */
+#ifdef WATT32
+ #define SOCKET int
+ #define NS_INADDRSZ 4
+ #define HAVE_ARPA_NAMESER_H 1
+ #define HAVE_ARPA_INET_H 1
+ #define HAVE_NETDB_H 1
+ #define HAVE_NETINET_IN_H 1
+ #define HAVE_SYS_SOCKET_H 1
+ #define HAVE_NETINET_TCP_H 1
+ #define HAVE_AF_INET6 1
+ #define HAVE_PF_INET6 1
+ #define HAVE_STRUCT_IN6_ADDR 1
+ #define HAVE_STRUCT_SOCKADDR_IN6 1
+ #undef HAVE_WINSOCK_H
+ #undef HAVE_WINSOCK2_H
+ #undef HAVE_WS2TCPIP_H
+#endif
+
+/* ---------------------------------------------------------------- */
+/* TYPEDEF REPLACEMENTS */
+/* ---------------------------------------------------------------- */
+
+/* Define this if in_addr_t is not an available 'typedefed' type */
+#define in_addr_t unsigned long
+
+/* Define as the return type of signal handlers (int or void). */
+#define RETSIGTYPE void
+
+/* Define ssize_t if it is not an available 'typedefed' type */
+#ifndef _SSIZE_T_DEFINED
+# if (defined(__WATCOMC__) && (__WATCOMC__ >= 1240)) || \
+ defined(__POCC__) || \
+ defined(__MINGW32__)
+# elif defined(_WIN64)
+# define _SSIZE_T_DEFINED
+# define ssize_t __int64
+# else
+# define _SSIZE_T_DEFINED
+# define ssize_t int
+# endif
+#endif
+
+/* ---------------------------------------------------------------- */
+/* STRUCT RELATED */
+/* ---------------------------------------------------------------- */
+
+/* Define this if you have struct addrinfo */
+#define HAVE_STRUCT_ADDRINFO 1
+
+/* Define this if you have struct sockaddr_storage */
+#ifndef __SALFORDC__
+#define HAVE_STRUCT_SOCKADDR_STORAGE 1
+#endif
+
+/* Define this if you have struct timeval */
+#define HAVE_STRUCT_TIMEVAL 1
+
+/* ---------------------------------------------------------------- */
+/* COMPILER SPECIFIC */
+/* ---------------------------------------------------------------- */
+
+/* Define to avoid VS2005 complaining about portable C functions */
+#if defined(_MSC_VER) && (_MSC_VER >= 1400)
+#define _CRT_SECURE_NO_DEPRECATE 1
+#define _CRT_NONSTDC_NO_DEPRECATE 1
+#endif
+
+/* Officially, Microsoft's Windows SDK versions 6.X do not support Windows
+ 2000 as a supported build target. VS2008 default installations provide an
+ embedded Windows SDK v6.0A along with the claim that Windows 2000 is a
+ valid build target for VS2008. Popular belief is that binaries built using
+ Windows SDK versions 6.X and Windows 2000 as a build target are functional */
+#if defined(_MSC_VER) && (_MSC_VER >= 1500)
+# define VS2008_MINIMUM_TARGET 0x0500
+#endif
+
+/* When no build target is specified VS2008 default build target is Windows
+ Vista, which leaves out even Winsows XP. If no build target has been given
+ for VS2008 we will target the minimum Officially supported build target,
+ which happens to be Windows XP. */
+#if defined(_MSC_VER) && (_MSC_VER >= 1500)
+# define VS2008_DEFAULT_TARGET 0x0501
+#endif
+
+/* VS2008 default target settings and minimum build target check */
+#if defined(_MSC_VER) && (_MSC_VER >= 1500)
+# ifndef _WIN32_WINNT
+# define _WIN32_WINNT VS2008_DEFAULT_TARGET
+# endif
+# ifndef WINVER
+# define WINVER VS2008_DEFAULT_TARGET
+# endif
+# if (_WIN32_WINNT < VS2008_MINIMUM_TARGET) || (WINVER < VS2008_MINIMUM_TARGET)
+# error VS2008 does not support Windows build targets prior to Windows 2000
+# endif
+#endif
+
+/* When no build target is specified Pelles C 5.00 and later default build
+ target is Windows Vista. We override default target to be Windows 2000. */
+#if defined(__POCC__) && (__POCC__ >= 500)
+# ifndef _WIN32_WINNT
+# define _WIN32_WINNT 0x0500
+# endif
+# ifndef WINVER
+# define WINVER 0x0500
+# endif
+#endif
+
+/* Availability of freeaddrinfo, getaddrinfo and getnameinfo functions is
+ quite convoluted, compiler dependent and even build target dependent. */
+#if defined(HAVE_WS2TCPIP_H)
+# if defined(__POCC__)
+# define HAVE_FREEADDRINFO 1
+# define HAVE_GETADDRINFO 1
+# define HAVE_GETNAMEINFO 1
+# elif defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0501)
+# define HAVE_FREEADDRINFO 1
+# define HAVE_GETADDRINFO 1
+# define HAVE_GETNAMEINFO 1
+# elif defined(_MSC_VER) && (_MSC_VER >= 1200)
+# define HAVE_FREEADDRINFO 1
+# define HAVE_GETADDRINFO 1
+# define HAVE_GETNAMEINFO 1
+# endif
+#endif
+
+#if defined(__POCC__)
+# ifndef _MSC_VER
+# error Microsoft extensions /Ze compiler option is required
+# endif
+# ifndef __POCC__OLDNAMES
+# error Compatibility names /Go compiler option is required
+# endif
+#endif
+
+/* ---------------------------------------------------------------- */
+/* IPV6 COMPATIBILITY */
+/* ---------------------------------------------------------------- */
+
+/* Define this if you have address family AF_INET6 */
+#ifdef HAVE_WINSOCK2_H
+#define HAVE_AF_INET6 1
+#endif
+
+/* Define this if you have protocol family PF_INET6 */
+#ifdef HAVE_WINSOCK2_H
+#define HAVE_PF_INET6 1
+#endif
+
+/* Define this if you have struct in6_addr */
+#ifdef HAVE_WS2TCPIP_H
+#define HAVE_STRUCT_IN6_ADDR 1
+#endif
+
+/* Define this if you have struct sockaddr_in6 */
+#ifdef HAVE_WS2TCPIP_H
+#define HAVE_STRUCT_SOCKADDR_IN6 1
+#endif
+
+/* Define this if you have sockaddr_in6 with scopeid */
+#ifdef HAVE_WS2TCPIP_H
+#define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
+#endif
+
+
+#endif /* __ARES_CONFIG_WIN32_H */
diff --git a/3rdParty/CAres/src/inet_net_pton.c b/3rdParty/CAres/src/inet_net_pton.c
new file mode 100644
index 0000000..de09ace
--- /dev/null
+++ b/3rdParty/CAres/src/inet_net_pton.c
@@ -0,0 +1,446 @@
+/* $Id: inet_net_pton.c,v 1.17 2009-11-02 11:55:54 yangtse Exp $ */
+
+/*
+ * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (c) 1996,1999 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+ * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+# include <arpa/inet.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#include <ctype.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "ares_ipv6.h"
+#include "inet_net_pton.h"
+
+#if !defined(HAVE_INET_NET_PTON) || !defined(HAVE_INET_NET_PTON_IPV6)
+
+/*
+ * static int
+ * inet_net_pton_ipv4(src, dst, size)
+ * convert IPv4 network number from presentation to network format.
+ * accepts hex octets, hex strings, decimal octets, and /CIDR.
+ * "size" is in bytes and describes "dst".
+ * return:
+ * number of bits, either imputed classfully or specified with /CIDR,
+ * or -1 if some failure occurred (check errno). ENOENT means it was
+ * not an IPv4 network specification.
+ * note:
+ * network byte order assumed. this means 192.5.5.240/28 has
+ * 0b11110000 in its fourth octet.
+ * note:
+ * On Windows we store the error in the thread errno, not
+ * in the winsock error code. This is to avoid loosing the
+ * actual last winsock error. So use macro ERRNO to fetch the
+ * errno this funtion sets when returning (-1), not SOCKERRNO.
+ * author:
+ * Paul Vixie (ISC), June 1996
+ */
+static int
+inet_net_pton_ipv4(const char *src, unsigned char *dst, size_t size)
+{
+ static const char xdigits[] = "0123456789abcdef";
+ static const char digits[] = "0123456789";
+ int n, ch, tmp = 0, dirty, bits;
+ const unsigned char *odst = dst;
+
+ ch = *src++;
+ if (ch == '0' && (src[0] == 'x' || src[0] == 'X')
+ && ISXDIGIT(src[1])) {
+ /* Hexadecimal: Eat nybble string. */
+ if (!size)
+ goto emsgsize;
+ dirty = 0;
+ src++; /* skip x or X. */
+ while ((ch = *src++) != '\0' && ISXDIGIT(ch)) {
+ if (ISUPPER(ch))
+ ch = tolower(ch);
+ n = (int)(strchr(xdigits, ch) - xdigits);
+ if (dirty == 0)
+ tmp = n;
+ else
+ tmp = (tmp << 4) | n;
+ if (++dirty == 2) {
+ if (!size--)
+ goto emsgsize;
+ *dst++ = (unsigned char) tmp;
+ dirty = 0;
+ }
+ }
+ if (dirty) { /* Odd trailing nybble? */
+ if (!size--)
+ goto emsgsize;
+ *dst++ = (unsigned char) (tmp << 4);
+ }
+ } else if (ISDIGIT(ch)) {
+ /* Decimal: eat dotted digit string. */
+ for (;;) {
+ tmp = 0;
+ do {
+ n = (int)(strchr(digits, ch) - digits);
+ tmp *= 10;
+ tmp += n;
+ if (tmp > 255)
+ goto enoent;
+ } while ((ch = *src++) != '\0' &&
+ ISDIGIT(ch));
+ if (!size--)
+ goto emsgsize;
+ *dst++ = (unsigned char) tmp;
+ if (ch == '\0' || ch == '/')
+ break;
+ if (ch != '.')
+ goto enoent;
+ ch = *src++;
+ if (!ISDIGIT(ch))
+ goto enoent;
+ }
+ } else
+ goto enoent;
+
+ bits = -1;
+ if (ch == '/' &&
+ ISDIGIT(src[0]) && dst > odst) {
+ /* CIDR width specifier. Nothing can follow it. */
+ ch = *src++; /* Skip over the /. */
+ bits = 0;
+ do {
+ n = (int)(strchr(digits, ch) - digits);
+ bits *= 10;
+ bits += n;
+ } while ((ch = *src++) != '\0' && ISDIGIT(ch));
+ if (ch != '\0')
+ goto enoent;
+ if (bits > 32)
+ goto emsgsize;
+ }
+
+ /* Firey death and destruction unless we prefetched EOS. */
+ if (ch != '\0')
+ goto enoent;
+
+ /* If nothing was written to the destination, we found no address. */
+ if (dst == odst)
+ goto enoent;
+ /* If no CIDR spec was given, infer width from net class. */
+ if (bits == -1) {
+ if (*odst >= 240) /* Class E */
+ bits = 32;
+ else if (*odst >= 224) /* Class D */
+ bits = 8;
+ else if (*odst >= 192) /* Class C */
+ bits = 24;
+ else if (*odst >= 128) /* Class B */
+ bits = 16;
+ else /* Class A */
+ bits = 8;
+ /* If imputed mask is narrower than specified octets, widen. */
+ if (bits < ((dst - odst) * 8))
+ bits = (int)(dst - odst) * 8;
+ /*
+ * If there are no additional bits specified for a class D
+ * address adjust bits to 4.
+ */
+ if (bits == 8 && *odst == 224)
+ bits = 4;
+ }
+ /* Extend network to cover the actual mask. */
+ while (bits > ((dst - odst) * 8)) {
+ if (!size--)
+ goto emsgsize;
+ *dst++ = '\0';
+ }
+ return (bits);
+
+ enoent:
+ SET_ERRNO(ENOENT);
+ return (-1);
+
+ emsgsize:
+ SET_ERRNO(EMSGSIZE);
+ return (-1);
+}
+
+static int
+getbits(const char *src, int *bitsp)
+{
+ static const char digits[] = "0123456789";
+ int n;
+ int val;
+ char ch;
+
+ val = 0;
+ n = 0;
+ while ((ch = *src++) != '\0') {
+ const char *pch;
+
+ pch = strchr(digits, ch);
+ if (pch != NULL) {
+ if (n++ != 0 && val == 0) /* no leading zeros */
+ return (0);
+ val *= 10;
+ val += (pch - digits);
+ if (val > 128) /* range */
+ return (0);
+ continue;
+ }
+ return (0);
+ }
+ if (n == 0)
+ return (0);
+ *bitsp = val;
+ return (1);
+}
+
+static int
+getv4(const char *src, unsigned char *dst, int *bitsp)
+{
+ static const char digits[] = "0123456789";
+ unsigned char *odst = dst;
+ int n;
+ unsigned int val;
+ char ch;
+
+ val = 0;
+ n = 0;
+ while ((ch = *src++) != '\0') {
+ const char *pch;
+
+ pch = strchr(digits, ch);
+ if (pch != NULL) {
+ if (n++ != 0 && val == 0) /* no leading zeros */
+ return (0);
+ val *= 10;
+ val += (pch - digits);
+ if (val > 255) /* range */
+ return (0);
+ continue;
+ }
+ if (ch == '.' || ch == '/') {
+ if (dst - odst > 3) /* too many octets? */
+ return (0);
+ *dst++ = (unsigned char)val;
+ if (ch == '/')
+ return (getbits(src, bitsp));
+ val = 0;
+ n = 0;
+ continue;
+ }
+ return (0);
+ }
+ if (n == 0)
+ return (0);
+ if (dst - odst > 3) /* too many octets? */
+ return (0);
+ *dst++ = (unsigned char)val;
+ return (1);
+}
+
+static int
+inet_net_pton_ipv6(const char *src, unsigned char *dst, size_t size)
+{
+ static const char xdigits_l[] = "0123456789abcdef",
+ xdigits_u[] = "0123456789ABCDEF";
+ unsigned char tmp[NS_IN6ADDRSZ], *tp, *endp, *colonp;
+ const char *xdigits, *curtok;
+ int ch, saw_xdigit;
+ unsigned int val;
+ int digits;
+ int bits;
+ size_t bytes;
+ int words;
+ int ipv4;
+
+ memset((tp = tmp), '\0', NS_IN6ADDRSZ);
+ endp = tp + NS_IN6ADDRSZ;
+ colonp = NULL;
+ /* Leading :: requires some special handling. */
+ if (*src == ':')
+ if (*++src != ':')
+ goto enoent;
+ curtok = src;
+ saw_xdigit = 0;
+ val = 0;
+ digits = 0;
+ bits = -1;
+ ipv4 = 0;
+ while ((ch = *src++) != '\0') {
+ const char *pch;
+
+ if ((pch = strchr((xdigits = xdigits_l), ch)) == NULL)
+ pch = strchr((xdigits = xdigits_u), ch);
+ if (pch != NULL) {
+ val <<= 4;
+ val |= (pch - xdigits);
+ if (++digits > 4)
+ goto enoent;
+ saw_xdigit = 1;
+ continue;
+ }
+ if (ch == ':') {
+ curtok = src;
+ if (!saw_xdigit) {
+ if (colonp)
+ goto enoent;
+ colonp = tp;
+ continue;
+ } else if (*src == '\0')
+ goto enoent;
+ if (tp + NS_INT16SZ > endp)
+ return (0);
+ *tp++ = (unsigned char)((val >> 8) & 0xff);
+ *tp++ = (unsigned char)(val & 0xff);
+ saw_xdigit = 0;
+ digits = 0;
+ val = 0;
+ continue;
+ }
+ if (ch == '.' && ((tp + NS_INADDRSZ) <= endp) &&
+ getv4(curtok, tp, &bits) > 0) {
+ tp += NS_INADDRSZ;
+ saw_xdigit = 0;
+ ipv4 = 1;
+ break; /* '\0' was seen by inet_pton4(). */
+ }
+ if (ch == '/' && getbits(src, &bits) > 0)
+ break;
+ goto enoent;
+ }
+ if (saw_xdigit) {
+ if (tp + NS_INT16SZ > endp)
+ goto enoent;
+ *tp++ = (unsigned char)((val >> 8) & 0xff);
+ *tp++ = (unsigned char)(val & 0xff);
+ }
+ if (bits == -1)
+ bits = 128;
+
+ words = (bits + 15) / 16;
+ if (words < 2)
+ words = 2;
+ if (ipv4)
+ words = 8;
+ endp = tmp + 2 * words;
+
+ if (colonp != NULL) {
+ /*
+ * Since some memmove()'s erroneously fail to handle
+ * overlapping regions, we'll do the shift by hand.
+ */
+ const int n = (int)(tp - colonp);
+ int i;
+
+ if (tp == endp)
+ goto enoent;
+ for (i = 1; i <= n; i++) {
+ endp[- i] = colonp[n - i];
+ colonp[n - i] = 0;
+ }
+ tp = endp;
+ }
+ if (tp != endp)
+ goto enoent;
+
+ bytes = (bits + 7) / 8;
+ if (bytes > size)
+ goto emsgsize;
+ memcpy(dst, tmp, bytes);
+ return (bits);
+
+ enoent:
+ SET_ERRNO(ENOENT);
+ return (-1);
+
+ emsgsize:
+ SET_ERRNO(EMSGSIZE);
+ return (-1);
+}
+
+/*
+ * int
+ * inet_net_pton(af, src, dst, size)
+ * convert network number from presentation to network format.
+ * accepts hex octets, hex strings, decimal octets, and /CIDR.
+ * "size" is in bytes and describes "dst".
+ * return:
+ * number of bits, either imputed classfully or specified with /CIDR,
+ * or -1 if some failure occurred (check errno). ENOENT means it was
+ * not a valid network specification.
+ * note:
+ * On Windows we store the error in the thread errno, not
+ * in the winsock error code. This is to avoid loosing the
+ * actual last winsock error. So use macro ERRNO to fetch the
+ * errno this funtion sets when returning (-1), not SOCKERRNO.
+ * author:
+ * Paul Vixie (ISC), June 1996
+ */
+int
+ares_inet_net_pton(int af, const char *src, void *dst, size_t size)
+{
+ switch (af) {
+ case AF_INET:
+ return (inet_net_pton_ipv4(src, dst, size));
+ case AF_INET6:
+ return (inet_net_pton_ipv6(src, dst, size));
+ default:
+ SET_ERRNO(EAFNOSUPPORT);
+ return (-1);
+ }
+}
+
+#endif
+
+#ifndef HAVE_INET_PTON
+int ares_inet_pton(int af, const char *src, void *dst)
+{
+ int result;
+ size_t size;
+
+ if (af == AF_INET)
+ size = sizeof(struct in_addr);
+ else if (af == AF_INET6)
+ size = sizeof(struct in6_addr);
+ else
+ {
+ SET_ERRNO(EAFNOSUPPORT);
+ return -1;
+ }
+ result = ares_inet_net_pton(af, src, dst, size);
+ if (result == -1 && ERRNO == ENOENT)
+ return 0;
+ return (result > -1 ? 1 : -1);
+}
+#endif
diff --git a/3rdParty/CAres/src/inet_net_pton.h b/3rdParty/CAres/src/inet_net_pton.h
new file mode 100644
index 0000000..eb38afa
--- /dev/null
+++ b/3rdParty/CAres/src/inet_net_pton.h
@@ -0,0 +1,32 @@
+#ifndef __ARES_INET_NET_PTON_H
+#define __ARES_INET_NET_PTON_H
+
+/* $Id: inet_net_pton.h,v 1.6 2008-09-24 19:13:02 yangtse Exp $ */
+
+/* Copyright (C) 2005 by Daniel Stenberg
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#ifdef HAVE_INET_PTON
+#define ares_inet_pton(x,y,z) inet_pton(x,y,z)
+#else
+int ares_inet_pton(int af, const char *src, void *dst);
+#endif
+#if defined(HAVE_INET_NET_PTON) && defined(HAVE_INET_NET_PTON_IPV6)
+#define ares_inet_net_pton(w,x,y,z) inet_net_pton(w,x,y,z)
+#else
+int ares_inet_net_pton(int af, const char *src, void *dst, size_t size);
+#endif
+
+#endif /* __ARES_INET_NET_PTON_H */
diff --git a/3rdParty/CAres/src/inet_ntop.c b/3rdParty/CAres/src/inet_ntop.c
new file mode 100644
index 0000000..5b0d097
--- /dev/null
+++ b/3rdParty/CAres/src/inet_ntop.c
@@ -0,0 +1,232 @@
+/* $Id: inet_ntop.c,v 1.12 2009-11-02 11:55:54 yangtse Exp $ */
+
+/* Copyright (c) 1996 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+
+#include "ares_setup.h"
+
+#ifdef HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+# include <netinet/in.h>
+#endif
+#ifdef HAVE_ARPA_INET_H
+# include <arpa/inet.h>
+#endif
+#ifdef HAVE_ARPA_NAMESER_H
+# include <arpa/nameser.h>
+#else
+# include "nameser.h"
+#endif
+#ifdef HAVE_ARPA_NAMESER_COMPAT_H
+# include <arpa/nameser_compat.h>
+#endif
+
+#include <ctype.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "ares_ipv6.h"
+#include "inet_ntop.h"
+
+
+#ifndef HAVE_INET_NTOP
+
+#ifdef SPRINTF_CHAR
+# define SPRINTF(x) strlen(sprintf/**/x)
+#else
+# define SPRINTF(x) ((size_t)sprintf x)
+#endif
+
+/*
+ * WARNING: Don't even consider trying to compile this on a system where
+ * sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX.
+ */
+
+static const char *inet_ntop4(const unsigned char *src, char *dst, size_t size);
+static const char *inet_ntop6(const unsigned char *src, char *dst, size_t size);
+
+/* char *
+ * inet_ntop(af, src, dst, size)
+ * convert a network format address to presentation format.
+ * return:
+ * pointer to presentation format address (`dst'), or NULL (see errno).
+ * note:
+ * On Windows we store the error in the thread errno, not
+ * in the winsock error code. This is to avoid loosing the
+ * actual last winsock error. So use macro ERRNO to fetch the
+ * errno this funtion sets when returning NULL, not SOCKERRNO.
+ * author:
+ * Paul Vixie, 1996.
+ */
+const char *
+ares_inet_ntop(int af, const void *src, char *dst, size_t size)
+{
+ switch (af)
+ {
+ case AF_INET:
+ return (inet_ntop4(src, dst, size));
+ case AF_INET6:
+ return (inet_ntop6(src, dst, size));
+ default:
+ SET_ERRNO(EAFNOSUPPORT);
+ return (NULL);
+ }
+ /* NOTREACHED */
+}
+
+/* const char *
+ * inet_ntop4(src, dst, size)
+ * format an IPv4 address, more or less like inet_ntoa()
+ * return:
+ * `dst' (as a const)
+ * notes:
+ * (1) uses no statics
+ * (2) takes a unsigned char* not an in_addr as input
+ * author:
+ * Paul Vixie, 1996.
+ */
+static const char *
+inet_ntop4(const unsigned char *src, char *dst, size_t size)
+{
+ static const char fmt[] = "%u.%u.%u.%u";
+ char tmp[sizeof "255.255.255.255"];
+
+ if (SPRINTF((tmp, fmt, src[0], src[1], src[2], src[3])) > size)
+ {
+ SET_ERRNO(ENOSPC);
+ return (NULL);
+ }
+ strcpy(dst, tmp);
+ return (dst);
+}
+
+/* const char *
+ * inet_ntop6(src, dst, size)
+ * convert IPv6 binary address into presentation (printable) format
+ * author:
+ * Paul Vixie, 1996.
+ */
+static const char *
+inet_ntop6(const unsigned char *src, char *dst, size_t size)
+{
+ /*
+ * Note that int32_t and int16_t need only be "at least" large enough
+ * to contain a value of the specified size. On some systems, like
+ * Crays, there is no such thing as an integer variable with 16 bits.
+ * Keep this in mind if you think this function should have been coded
+ * to use pointer overlays. All the world's not a VAX.
+ */
+ char tmp[sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")];
+ char *tp;
+ struct {
+ long base;
+ long len;
+ } best, cur;
+ unsigned long words[NS_IN6ADDRSZ / NS_INT16SZ];
+ int i;
+
+ /*
+ * Preprocess:
+ * Copy the input (bytewise) array into a wordwise array.
+ * Find the longest run of 0x00's in src[] for :: shorthanding.
+ */
+ memset(words, '\0', sizeof(words));
+ for (i = 0; i < NS_IN6ADDRSZ; i++)
+ words[i / 2] |= (src[i] << ((1 - (i % 2)) << 3));
+
+ best.base = -1;
+ cur.base = -1;
+ best.len = 0;
+ cur.len = 0;
+
+ for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++)
+ {
+ if (words[i] == 0)
+ {
+ if (cur.base == -1)
+ cur.base = i, cur.len = 1;
+ else
+ cur.len++;
+ }
+ else
+ {
+ if (cur.base != -1)
+ {
+ if (best.base == -1 || cur.len > best.len)
+ best = cur;
+ cur.base = -1;
+ }
+ }
+ }
+ if (cur.base != -1)
+ {
+ if (best.base == -1 || cur.len > best.len)
+ best = cur;
+ }
+ if (best.base != -1 && best.len < 2)
+ best.base = -1;
+
+ /*
+ * Format the result.
+ */
+ tp = tmp;
+ for (i = 0; i < (NS_IN6ADDRSZ / NS_INT16SZ); i++)
+ {
+ /* Are we inside the best run of 0x00's? */
+ if (best.base != -1 && i >= best.base &&
+ i < (best.base + best.len))
+ {
+ if (i == best.base)
+ *tp++ = ':';
+ continue;
+ }
+ /* Are we following an initial run of 0x00s or any real hex? */
+ if (i != 0)
+ *tp++ = ':';
+ /* Is this address an encapsulated IPv4? */
+ if (i == 6 && best.base == 0 &&
+ (best.len == 6 || (best.len == 5 && words[5] == 0xffff)))
+ {
+ if (!inet_ntop4(src+12, tp, sizeof(tmp) - (tp - tmp)))
+ return (NULL);
+ tp += strlen(tp);
+ break;
+ }
+ tp += SPRINTF((tp, "%lx", words[i]));
+ }
+
+ /* Was it a trailing run of 0x00's? */
+ if (best.base != -1 && (best.base + best.len) == (NS_IN6ADDRSZ / NS_INT16SZ))
+ *tp++ = ':';
+ *tp++ = '\0';
+
+ /*
+ * Check for overflow, copy, and we're done.
+ */
+ if ((size_t)(tp - tmp) > size)
+ {
+ SET_ERRNO(ENOSPC);
+ return (NULL);
+ }
+ strcpy(dst, tmp);
+ return (dst);
+}
+#endif
+
diff --git a/3rdParty/CAres/src/inet_ntop.h b/3rdParty/CAres/src/inet_ntop.h
new file mode 100644
index 0000000..923689e
--- /dev/null
+++ b/3rdParty/CAres/src/inet_ntop.h
@@ -0,0 +1,27 @@
+#ifndef __ARES_INET_NTOP_H
+#define __ARES_INET_NTOP_H
+
+/* $Id: inet_ntop.h,v 1.4 2008-09-24 16:43:12 yangtse Exp $ */
+
+/* Copyright (C) 2005 by Dominick Meglio
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in
+ * advertising or publicity pertaining to distribution of the
+ * software without specific, written prior permission.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+#ifdef HAVE_INET_NTOP
+#define ares_inet_ntop(w,x,y,z) inet_ntop(w,x,y,z)
+#else
+const char *ares_inet_ntop(int af, const void *src, char *dst, size_t size);
+#endif
+
+#endif /* __ARES_INET_NTOP_H */
diff --git a/3rdParty/CAres/src/nameser.h b/3rdParty/CAres/src/nameser.h
new file mode 100644
index 0000000..db324c0
--- /dev/null
+++ b/3rdParty/CAres/src/nameser.h
@@ -0,0 +1,194 @@
+/* $Id: nameser.h,v 1.29 2008-09-17 01:02:57 yangtse Exp $ */
+
+#ifndef ARES_NAMESER_H
+#define ARES_NAMESER_H
+
+/* header file provided by liren@vivisimo.com */
+
+#ifndef HAVE_ARPA_NAMESER_H
+
+#define NS_PACKETSZ 512 /* maximum packet size */
+#define NS_MAXDNAME 256 /* maximum domain name */
+#define NS_MAXCDNAME 255 /* maximum compressed domain name */
+#define NS_MAXLABEL 63
+#define NS_HFIXEDSZ 12 /* #/bytes of fixed data in header */
+#define NS_QFIXEDSZ 4 /* #/bytes of fixed data in query */
+#define NS_RRFIXEDSZ 10 /* #/bytes of fixed data in r record */
+#define NS_INT16SZ 2
+#define NS_INADDRSZ 4
+#define NS_IN6ADDRSZ 16
+#define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */
+#define NS_DEFAULTPORT 53 /* For both TCP and UDP. */
+
+typedef enum __ns_class {
+ ns_c_invalid = 0, /* Cookie. */
+ ns_c_in = 1, /* Internet. */
+ ns_c_2 = 2, /* unallocated/unsupported. */
+ ns_c_chaos = 3, /* MIT Chaos-net. */
+ ns_c_hs = 4, /* MIT Hesiod. */
+ /* Query class values which do not appear in resource records */
+ ns_c_none = 254, /* for prereq. sections in update requests */
+ ns_c_any = 255, /* Wildcard match. */
+ ns_c_max = 65536
+} ns_class;
+
+typedef enum __ns_type {
+ ns_t_invalid = 0, /* Cookie. */
+ ns_t_a = 1, /* Host address. */
+ ns_t_ns = 2, /* Authoritative server. */
+ ns_t_md = 3, /* Mail destination. */
+ ns_t_mf = 4, /* Mail forwarder. */
+ ns_t_cname = 5, /* Canonical name. */
+ ns_t_soa = 6, /* Start of authority zone. */
+ ns_t_mb = 7, /* Mailbox domain name. */
+ ns_t_mg = 8, /* Mail group member. */
+ ns_t_mr = 9, /* Mail rename name. */
+ ns_t_null = 10, /* Null resource record. */
+ ns_t_wks = 11, /* Well known service. */
+ ns_t_ptr = 12, /* Domain name pointer. */
+ ns_t_hinfo = 13, /* Host information. */
+ ns_t_minfo = 14, /* Mailbox information. */
+ ns_t_mx = 15, /* Mail routing information. */
+ ns_t_txt = 16, /* Text strings. */
+ ns_t_rp = 17, /* Responsible person. */
+ ns_t_afsdb = 18, /* AFS cell database. */
+ ns_t_x25 = 19, /* X_25 calling address. */
+ ns_t_isdn = 20, /* ISDN calling address. */
+ ns_t_rt = 21, /* Router. */
+ ns_t_nsap = 22, /* NSAP address. */
+ ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */
+ ns_t_sig = 24, /* Security signature. */
+ ns_t_key = 25, /* Security key. */
+ ns_t_px = 26, /* X.400 mail mapping. */
+ ns_t_gpos = 27, /* Geographical position (withdrawn). */
+ ns_t_aaaa = 28, /* Ip6 Address. */
+ ns_t_loc = 29, /* Location Information. */
+ ns_t_nxt = 30, /* Next domain (security). */
+ ns_t_eid = 31, /* Endpoint identifier. */
+ ns_t_nimloc = 32, /* Nimrod Locator. */
+ ns_t_srv = 33, /* Server Selection. */
+ ns_t_atma = 34, /* ATM Address */
+ ns_t_naptr = 35, /* Naming Authority PoinTeR */
+ ns_t_kx = 36, /* Key Exchange */
+ ns_t_cert = 37, /* Certification record */
+ ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */
+ ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */
+ ns_t_sink = 40, /* Kitchen sink (experimentatl) */
+ ns_t_opt = 41, /* EDNS0 option (meta-RR) */
+ ns_t_apl = 42, /* Address prefix list (RFC3123) */
+ ns_t_tkey = 249, /* Transaction key */
+ ns_t_tsig = 250, /* Transaction signature. */
+ ns_t_ixfr = 251, /* Incremental zone transfer. */
+ ns_t_axfr = 252, /* Transfer zone of authority. */
+ ns_t_mailb = 253, /* Transfer mailbox records. */
+ ns_t_maila = 254, /* Transfer mail agent records. */
+ ns_t_any = 255, /* Wildcard match. */
+ ns_t_zxfr = 256, /* BIND-specific, nonstandard. */
+ ns_t_max = 65536
+} ns_type;
+
+typedef enum __ns_opcode {
+ ns_o_query = 0, /* Standard query. */
+ ns_o_iquery = 1, /* Inverse query (deprecated/unsupported). */
+ ns_o_status = 2, /* Name server status query (unsupported). */
+ /* Opcode 3 is undefined/reserved. */
+ ns_o_notify = 4, /* Zone change notification. */
+ ns_o_update = 5, /* Zone update message. */
+ ns_o_max = 6
+} ns_opcode;
+
+typedef enum __ns_rcode {
+ ns_r_noerror = 0, /* No error occurred. */
+ ns_r_formerr = 1, /* Format error. */
+ ns_r_servfail = 2, /* Server failure. */
+ ns_r_nxdomain = 3, /* Name error. */
+ ns_r_notimpl = 4, /* Unimplemented. */
+ ns_r_refused = 5, /* Operation refused. */
+ /* these are for BIND_UPDATE */
+ ns_r_yxdomain = 6, /* Name exists */
+ ns_r_yxrrset = 7, /* RRset exists */
+ ns_r_nxrrset = 8, /* RRset does not exist */
+ ns_r_notauth = 9, /* Not authoritative for zone */
+ ns_r_notzone = 10, /* Zone of record different from zone section */
+ ns_r_max = 11,
+ /* The following are TSIG extended errors */
+ ns_r_badsig = 16,
+ ns_r_badkey = 17,
+ ns_r_badtime = 18
+} ns_rcode;
+
+#endif /* HAVE_ARPA_NAMESER_H */
+
+#ifndef HAVE_ARPA_NAMESER_COMPAT_H
+
+#define PACKETSZ NS_PACKETSZ
+#define MAXDNAME NS_MAXDNAME
+#define MAXCDNAME NS_MAXCDNAME
+#define MAXLABEL NS_MAXLABEL
+#define HFIXEDSZ NS_HFIXEDSZ
+#define QFIXEDSZ NS_QFIXEDSZ
+#define RRFIXEDSZ NS_RRFIXEDSZ
+#define INDIR_MASK NS_CMPRSFLGS
+#define NAMESERVER_PORT NS_DEFAULTPORT
+
+#define QUERY ns_o_query
+
+#define SERVFAIL ns_r_servfail
+#define NOTIMP ns_r_notimpl
+#define REFUSED ns_r_refused
+#undef NOERROR /* it seems this is already defined in winerror.h */
+#define NOERROR ns_r_noerror
+#define FORMERR ns_r_formerr
+#define NXDOMAIN ns_r_nxdomain
+
+#define C_IN ns_c_in
+#define C_CHAOS ns_c_chaos
+#define C_HS ns_c_hs
+#define C_NONE ns_c_none
+#define C_ANY ns_c_any
+
+#define T_A ns_t_a
+#define T_NS ns_t_ns
+#define T_MD ns_t_md
+#define T_MF ns_t_mf
+#define T_CNAME ns_t_cname
+#define T_SOA ns_t_soa
+#define T_MB ns_t_mb
+#define T_MG ns_t_mg
+#define T_MR ns_t_mr
+#define T_NULL ns_t_null
+#define T_WKS ns_t_wks
+#define T_PTR ns_t_ptr
+#define T_HINFO ns_t_hinfo
+#define T_MINFO ns_t_minfo
+#define T_MX ns_t_mx
+#define T_TXT ns_t_txt
+#define T_RP ns_t_rp
+#define T_AFSDB ns_t_afsdb
+#define T_X25 ns_t_x25
+#define T_ISDN ns_t_isdn
+#define T_RT ns_t_rt
+#define T_NSAP ns_t_nsap
+#define T_NSAP_PTR ns_t_nsap_ptr
+#define T_SIG ns_t_sig
+#define T_KEY ns_t_key
+#define T_PX ns_t_px
+#define T_GPOS ns_t_gpos
+#define T_AAAA ns_t_aaaa
+#define T_LOC ns_t_loc
+#define T_NXT ns_t_nxt
+#define T_EID ns_t_eid
+#define T_NIMLOC ns_t_nimloc
+#define T_SRV ns_t_srv
+#define T_ATMA ns_t_atma
+#define T_NAPTR ns_t_naptr
+#define T_TSIG ns_t_tsig
+#define T_IXFR ns_t_ixfr
+#define T_AXFR ns_t_axfr
+#define T_MAILB ns_t_mailb
+#define T_MAILA ns_t_maila
+#define T_ANY ns_t_any
+
+#endif /* HAVE_ARPA_NAMESER_COMPAT_H */
+
+#endif /* ARES_NAMESER_H */
diff --git a/3rdParty/CAres/src/setup_once.h b/3rdParty/CAres/src/setup_once.h
new file mode 100644
index 0000000..9d93ebc
--- /dev/null
+++ b/3rdParty/CAres/src/setup_once.h
@@ -0,0 +1,444 @@
+#ifndef __SETUP_ONCE_H
+#define __SETUP_ONCE_H
+
+/* $Id: setup_once.h,v 1.36 2009-06-19 00:41:03 yangtse Exp $ */
+
+/* Copyright (C) 2004 - 2009 by Daniel Stenberg et al
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. M.I.T. makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ */
+
+
+/********************************************************************
+ * NOTICE *
+ * ======== *
+ * *
+ * Content of header files lib/setup_once.h and ares/setup_once.h *
+ * must be kept in sync. Modify the other one if you change this. *
+ * *
+ ********************************************************************/
+
+
+/*
+ * Inclusion of common header files.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <errno.h>
+
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#ifdef NEED_MALLOC_H
+#include <malloc.h>
+#endif
+
+#ifdef NEED_MEMORY_H
+#include <memory.h>
+#endif
+
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#ifdef TIME_WITH_SYS_TIME
+#include <time.h>
+#endif
+#else
+#ifdef HAVE_TIME_H
+#include <time.h>
+#endif
+#endif
+
+#ifdef WIN32
+#include <io.h>
+#include <fcntl.h>
+#endif
+
+#ifdef HAVE_STDBOOL_H
+#include <stdbool.h>
+#endif
+
+
+/*
+ * Definition of timeval struct for platforms that don't have it.
+ */
+
+#ifndef HAVE_STRUCT_TIMEVAL
+struct timeval {
+ long tv_sec;
+ long tv_usec;
+};
+#endif
+
+
+/*
+ * If we have the MSG_NOSIGNAL define, make sure we use
+ * it as the fourth argument of function send()
+ */
+
+#ifdef HAVE_MSG_NOSIGNAL
+#define SEND_4TH_ARG MSG_NOSIGNAL
+#else
+#define SEND_4TH_ARG 0
+#endif
+
+
+#if defined(__minix)
+/* Minix doesn't support recv on TCP sockets */
+#define sread(x,y,z) (ssize_t)read((RECV_TYPE_ARG1)(x), \
+ (RECV_TYPE_ARG2)(y), \
+ (RECV_TYPE_ARG3)(z))
+
+#elif defined(HAVE_RECV)
+/*
+ * The definitions for the return type and arguments types
+ * of functions recv() and send() belong and come from the
+ * configuration file. Do not define them in any other place.
+ *
+ * HAVE_RECV is defined if you have a function named recv()
+ * which is used to read incoming data from sockets. If your
+ * function has another name then don't define HAVE_RECV.
+ *
+ * If HAVE_RECV is defined then RECV_TYPE_ARG1, RECV_TYPE_ARG2,
+ * RECV_TYPE_ARG3, RECV_TYPE_ARG4 and RECV_TYPE_RETV must also
+ * be defined.
+ *
+ * HAVE_SEND is defined if you have a function named send()
+ * which is used to write outgoing data on a connected socket.
+ * If yours has another name then don't define HAVE_SEND.
+ *
+ * If HAVE_SEND is defined then SEND_TYPE_ARG1, SEND_QUAL_ARG2,
+ * SEND_TYPE_ARG2, SEND_TYPE_ARG3, SEND_TYPE_ARG4 and
+ * SEND_TYPE_RETV must also be defined.
+ */
+
+#if !defined(RECV_TYPE_ARG1) || \
+ !defined(RECV_TYPE_ARG2) || \
+ !defined(RECV_TYPE_ARG3) || \
+ !defined(RECV_TYPE_ARG4) || \
+ !defined(RECV_TYPE_RETV)
+ /* */
+ Error Missing_definition_of_return_and_arguments_types_of_recv
+ /* */
+#else
+#define sread(x,y,z) (ssize_t)recv((RECV_TYPE_ARG1)(x), \
+ (RECV_TYPE_ARG2)(y), \
+ (RECV_TYPE_ARG3)(z), \
+ (RECV_TYPE_ARG4)(0))
+#endif
+#else /* HAVE_RECV */
+#ifndef sread
+ /* */
+ Error Missing_definition_of_macro_sread
+ /* */
+#endif
+#endif /* HAVE_RECV */
+
+
+#if defined(__minix)
+/* Minix doesn't support send on TCP sockets */
+#define swrite(x,y,z) (ssize_t)write((SEND_TYPE_ARG1)(x), \
+ (SEND_TYPE_ARG2)(y), \
+ (SEND_TYPE_ARG3)(z))
+
+#elif defined(HAVE_SEND)
+#if !defined(SEND_TYPE_ARG1) || \
+ !defined(SEND_QUAL_ARG2) || \
+ !defined(SEND_TYPE_ARG2) || \
+ !defined(SEND_TYPE_ARG3) || \
+ !defined(SEND_TYPE_ARG4) || \
+ !defined(SEND_TYPE_RETV)
+ /* */
+ Error Missing_definition_of_return_and_arguments_types_of_send
+ /* */
+#else
+#define swrite(x,y,z) (ssize_t)send((SEND_TYPE_ARG1)(x), \
+ (SEND_TYPE_ARG2)(y), \
+ (SEND_TYPE_ARG3)(z), \
+ (SEND_TYPE_ARG4)(SEND_4TH_ARG))
+#endif
+#else /* HAVE_SEND */
+#ifndef swrite
+ /* */
+ Error Missing_definition_of_macro_swrite
+ /* */
+#endif
+#endif /* HAVE_SEND */
+
+
+#if 0
+#if defined(HAVE_RECVFROM)
+/*
+ * Currently recvfrom is only used on udp sockets.
+ */
+#if !defined(RECVFROM_TYPE_ARG1) || \
+ !defined(RECVFROM_TYPE_ARG2) || \
+ !defined(RECVFROM_TYPE_ARG3) || \
+ !defined(RECVFROM_TYPE_ARG4) || \
+ !defined(RECVFROM_TYPE_ARG5) || \
+ !defined(RECVFROM_TYPE_ARG6) || \
+ !defined(RECVFROM_TYPE_RETV)
+ /* */
+ Error Missing_definition_of_return_and_arguments_types_of_recvfrom
+ /* */
+#else
+#define sreadfrom(s,b,bl,f,fl) (ssize_t)recvfrom((RECVFROM_TYPE_ARG1) (s), \
+ (RECVFROM_TYPE_ARG2 *)(b), \
+ (RECVFROM_TYPE_ARG3) (bl), \
+ (RECVFROM_TYPE_ARG4) (0), \
+ (RECVFROM_TYPE_ARG5 *)(f), \
+ (RECVFROM_TYPE_ARG6 *)(fl))
+#endif
+#else /* HAVE_RECVFROM */
+#ifndef sreadfrom
+ /* */
+ Error Missing_definition_of_macro_sreadfrom
+ /* */
+#endif
+#endif /* HAVE_RECVFROM */
+
+
+#ifdef RECVFROM_TYPE_ARG6_IS_VOID
+# define RECVFROM_ARG6_T int
+#else
+# define RECVFROM_ARG6_T RECVFROM_TYPE_ARG6
+#endif
+#endif /* if 0 */
+
+
+/*
+ * Function-like macro definition used to close a socket.
+ */
+
+#if defined(HAVE_CLOSESOCKET)
+# define sclose(x) closesocket((x))
+#elif defined(HAVE_CLOSESOCKET_CAMEL)
+# define sclose(x) CloseSocket((x))
+#else
+# define sclose(x) close((x))
+#endif
+
+
+/*
+ * Uppercase macro versions of ANSI/ISO is*() functions/macros which
+ * avoid negative number inputs with argument byte codes > 127.
+ */
+
+#define ISSPACE(x) (isspace((int) ((unsigned char)x)))
+#define ISDIGIT(x) (isdigit((int) ((unsigned char)x)))
+#define ISALNUM(x) (isalnum((int) ((unsigned char)x)))
+#define ISXDIGIT(x) (isxdigit((int) ((unsigned char)x)))
+#define ISGRAPH(x) (isgraph((int) ((unsigned char)x)))
+#define ISALPHA(x) (isalpha((int) ((unsigned char)x)))
+#define ISPRINT(x) (isprint((int) ((unsigned char)x)))
+#define ISUPPER(x) (isupper((int) ((unsigned char)x)))
+#define ISLOWER(x) (islower((int) ((unsigned char)x)))
+
+#define ISBLANK(x) (int)((((unsigned char)x) == ' ') || \
+ (((unsigned char)x) == '\t'))
+
+
+/*
+ * Typedef to 'unsigned char' if bool is not an available 'typedefed' type.
+ */
+
+#ifndef HAVE_BOOL_T
+typedef unsigned char bool;
+#define HAVE_BOOL_T
+#endif
+
+
+/*
+ * Default definition of uppercase TRUE and FALSE.
+ */
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+
+/*
+ * Typedef to 'int' if sig_atomic_t is not an available 'typedefed' type.
+ */
+
+#ifndef HAVE_SIG_ATOMIC_T
+typedef int sig_atomic_t;
+#define HAVE_SIG_ATOMIC_T
+#endif
+
+
+/*
+ * Convenience SIG_ATOMIC_T definition
+ */
+
+#ifdef HAVE_SIG_ATOMIC_T_VOLATILE
+#define SIG_ATOMIC_T static sig_atomic_t
+#else
+#define SIG_ATOMIC_T static volatile sig_atomic_t
+#endif
+
+
+/*
+ * Default return type for signal handlers.
+ */
+
+#ifndef RETSIGTYPE
+#define RETSIGTYPE void
+#endif
+
+
+/*
+ * Macro used to include code only in debug builds.
+ */
+
+#ifdef DEBUGBUILD
+#define DEBUGF(x) x
+#else
+#define DEBUGF(x) do { } while (0)
+#endif
+
+
+/*
+ * Macro used to include assertion code only in debug builds.
+ */
+
+#if defined(DEBUGBUILD) && defined(HAVE_ASSERT_H)
+#define DEBUGASSERT(x) assert(x)
+#else
+#define DEBUGASSERT(x) do { } while (0)
+#endif
+
+
+/*
+ * Macro SOCKERRNO / SET_SOCKERRNO() returns / sets the *socket-related* errno
+ * (or equivalent) on this platform to hide platform details to code using it.
+ */
+
+#ifdef USE_WINSOCK
+#define SOCKERRNO ((int)WSAGetLastError())
+#define SET_SOCKERRNO(x) (WSASetLastError((int)(x)))
+#else
+#define SOCKERRNO (errno)
+#define SET_SOCKERRNO(x) (errno = (x))
+#endif
+
+
+/*
+ * Macro ERRNO / SET_ERRNO() returns / sets the NOT *socket-related* errno
+ * (or equivalent) on this platform to hide platform details to code using it.
+ */
+
+#ifdef WIN32
+#define ERRNO ((int)GetLastError())
+#define SET_ERRNO(x) (SetLastError((DWORD)(x)))
+#else
+#define ERRNO (errno)
+#define SET_ERRNO(x) (errno = (x))
+#endif
+
+
+/*
+ * Portable error number symbolic names defined to Winsock error codes.
+ */
+
+#ifdef USE_WINSOCK
+#undef EBADF /* override definition in errno.h */
+#define EBADF WSAEBADF
+#undef EINTR /* override definition in errno.h */
+#define EINTR WSAEINTR
+#undef EINVAL /* override definition in errno.h */
+#define EINVAL WSAEINVAL
+#define EWOULDBLOCK WSAEWOULDBLOCK
+#define EINPROGRESS WSAEINPROGRESS
+#define EALREADY WSAEALREADY
+#define ENOTSOCK WSAENOTSOCK
+#define EDESTADDRREQ WSAEDESTADDRREQ
+#define EMSGSIZE WSAEMSGSIZE
+#define EPROTOTYPE WSAEPROTOTYPE
+#define ENOPROTOOPT WSAENOPROTOOPT
+#define EPROTONOSUPPORT WSAEPROTONOSUPPORT
+#define ESOCKTNOSUPPORT WSAESOCKTNOSUPPORT
+#define EOPNOTSUPP WSAEOPNOTSUPP
+#define EPFNOSUPPORT WSAEPFNOSUPPORT
+#define EAFNOSUPPORT WSAEAFNOSUPPORT
+#define EADDRINUSE WSAEADDRINUSE
+#define EADDRNOTAVAIL WSAEADDRNOTAVAIL
+#define ENETDOWN WSAENETDOWN
+#define ENETUNREACH WSAENETUNREACH
+#define ENETRESET WSAENETRESET
+#define ECONNABORTED WSAECONNABORTED
+#define ECONNRESET WSAECONNRESET
+#define ENOBUFS WSAENOBUFS
+#define EISCONN WSAEISCONN
+#define ENOTCONN WSAENOTCONN
+#define ESHUTDOWN WSAESHUTDOWN
+#define ETOOMANYREFS WSAETOOMANYREFS
+#define ETIMEDOUT WSAETIMEDOUT
+#define ECONNREFUSED WSAECONNREFUSED
+#define ELOOP WSAELOOP
+#ifndef ENAMETOOLONG /* possible previous definition in errno.h */
+#define ENAMETOOLONG WSAENAMETOOLONG
+#endif
+#define EHOSTDOWN WSAEHOSTDOWN
+#define EHOSTUNREACH WSAEHOSTUNREACH
+#ifndef ENOTEMPTY /* possible previous definition in errno.h */
+#define ENOTEMPTY WSAENOTEMPTY
+#endif
+#define EPROCLIM WSAEPROCLIM
+#define EUSERS WSAEUSERS
+#define EDQUOT WSAEDQUOT
+#define ESTALE WSAESTALE
+#define EREMOTE WSAEREMOTE
+#endif
+
+
+/*
+ * Actually use __32_getpwuid() on 64-bit VMS builds for getpwuid()
+ */
+
+#if defined(VMS) && \
+ defined(__INITIAL_POINTER_SIZE) && (__INITIAL_POINTER_SIZE == 64)
+#define getpwuid __32_getpwuid
+#endif
+
+
+/*
+ * Macro argv_item_t hides platform details to code using it.
+ */
+
+#ifdef VMS
+#define argv_item_t __char_ptr32
+#else
+#define argv_item_t char *
+#endif
+
+
+/*
+ * We use this ZERO_NULL to avoid picky compiler warnings,
+ * when assigning a NULL pointer to a function pointer var.
+ */
+
+#define ZERO_NULL 0
+
+
+#endif /* __SETUP_ONCE_H */
+
diff --git a/3rdParty/CAres/src/windows_port.c b/3rdParty/CAres/src/windows_port.c
new file mode 100644
index 0000000..ce129ae
--- /dev/null
+++ b/3rdParty/CAres/src/windows_port.c
@@ -0,0 +1,23 @@
+#include "ares_setup.h"
+
+/* $Id: windows_port.c,v 1.22 2009-11-02 11:55:54 yangtse Exp $ */
+
+/* only do the following on windows
+ */
+#if (defined(WIN32) || defined(WATT32)) && !defined(MSDOS)
+
+#ifdef __WATCOMC__
+/*
+ * Watcom needs a DllMain() in order to initialise the clib startup code.
+ */
+BOOL
+WINAPI DllMain (HINSTANCE hnd, DWORD reason, LPVOID reserved)
+{
+ (void) hnd;
+ (void) reason;
+ (void) reserved;
+ return (TRUE);
+}
+#endif
+
+#endif /* WIN32 builds only */