diff options
Diffstat (limited to '3rdParty/CAres/src/ares_send.c')
-rw-r--r-- | 3rdParty/CAres/src/ares_send.c | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/3rdParty/CAres/src/ares_send.c b/3rdParty/CAres/src/ares_send.c deleted file mode 100644 index eb35b47..0000000 --- a/3rdParty/CAres/src/ares_send.c +++ /dev/null @@ -1,135 +0,0 @@ -/* $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); -} |