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Diffstat (limited to '3rdParty/CAres/src/ares_getnameinfo.c')
-rw-r--r--3rdParty/CAres/src/ares_getnameinfo.c409
1 files changed, 0 insertions, 409 deletions
diff --git a/3rdParty/CAres/src/ares_getnameinfo.c b/3rdParty/CAres/src/ares_getnameinfo.c
deleted file mode 100644
index c1c0b16..0000000
--- a/3rdParty/CAres/src/ares_getnameinfo.c
+++ /dev/null
@@ -1,409 +0,0 @@
-/* $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;
-}