2002-09-03 13:52:59 +02:00
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/***************************************************************************
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2004-06-08 17:05:20 +02:00
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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2001-10-01 10:59:17 +02:00
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* \___|\___/|_| \_\_____|
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*
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2012-01-16 21:14:05 +01:00
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* Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
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2001-10-01 10:59:17 +02:00
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*
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2002-09-03 13:52:59 +02:00
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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2004-06-08 17:05:20 +02:00
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*
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2001-10-01 10:59:17 +02:00
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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2002-09-03 13:52:59 +02:00
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* furnished to do so, under the terms of the COPYING file.
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2001-10-01 10:59:17 +02:00
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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2002-09-03 13:52:59 +02:00
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***************************************************************************/
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2001-10-01 10:59:17 +02:00
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#include "setup.h"
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2004-01-29 16:29:47 +01:00
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#ifdef HAVE_SYS_SOCKET_H
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#include <sys/socket.h>
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2004-03-26 08:10:15 +01:00
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#endif
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2004-03-29 08:22:57 +02:00
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h> /* <netinet/tcp.h> may need it */
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#endif
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2008-05-01 23:34:34 +02:00
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#ifdef HAVE_SYS_UN_H
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#include <sys/un.h> /* for sockaddr_un */
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#endif
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2004-03-26 08:10:15 +01:00
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#ifdef HAVE_NETINET_TCP_H
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2004-03-25 14:37:18 +01:00
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#include <netinet/tcp.h> /* for TCP_NODELAY */
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2004-01-29 16:29:47 +01:00
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#endif
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2004-03-29 08:22:57 +02:00
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#ifdef HAVE_SYS_IOCTL_H
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2001-10-01 10:59:17 +02:00
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#include <sys/ioctl.h>
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2004-03-29 08:22:57 +02:00
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#endif
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2001-10-01 13:25:27 +02:00
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#ifdef HAVE_UNISTD_H
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2001-10-01 10:59:17 +02:00
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#include <unistd.h>
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2001-10-01 13:25:27 +02:00
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#endif
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#ifdef HAVE_NETDB_H
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2001-10-01 10:59:17 +02:00
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#include <netdb.h>
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2001-10-01 13:25:27 +02:00
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#endif
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#ifdef HAVE_FCNTL_H
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#include <fcntl.h>
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#endif
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2001-10-02 11:40:06 +02:00
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#ifdef HAVE_ARPA_INET_H
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#include <arpa/inet.h>
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#endif
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2007-02-26 05:24:26 +01:00
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2008-11-13 19:56:55 +01:00
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#if (defined(HAVE_IOCTL_FIONBIO) && defined(NETWARE))
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2004-03-17 13:46:42 +01:00
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#include <sys/filio.h>
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#endif
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2007-06-30 22:08:13 +02:00
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#ifdef NETWARE
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2004-03-17 13:46:42 +01:00
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#undef in_addr_t
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#define in_addr_t unsigned long
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#endif
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2009-12-30 18:59:56 +01:00
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#ifdef __VMS
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2002-02-20 14:46:53 +01:00
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#include <in.h>
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#include <inet.h>
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#endif
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2001-10-01 13:25:27 +02:00
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2008-06-08 17:52:03 +02:00
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#define _MPRINTF_REPLACE /* use our functions only */
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#include <curl/mprintf.h>
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2001-10-01 10:59:17 +02:00
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#include "urldata.h"
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#include "sendf.h"
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2001-10-02 11:40:06 +02:00
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#include "if2ip.h"
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2004-03-25 14:42:23 +01:00
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#include "strerror.h"
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2004-01-29 14:56:45 +01:00
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#include "connect.h"
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2009-04-21 13:46:16 +02:00
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#include "curl_memory.h"
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2004-11-19 09:52:33 +01:00
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#include "select.h"
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2005-01-29 23:38:45 +01:00
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#include "url.h" /* for Curl_safefree() */
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2006-04-10 17:00:53 +02:00
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#include "multiif.h"
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2006-01-30 09:24:07 +01:00
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#include "sockaddr.h" /* required for Curl_sockaddr_storage */
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2006-04-21 15:46:19 +02:00
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#include "inet_ntop.h"
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2009-02-28 02:35:53 +01:00
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#include "inet_pton.h"
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2008-05-12 23:43:24 +02:00
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#include "sslgen.h" /* for Curl_ssl_check_cxn() */
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2010-01-11 22:38:13 +01:00
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#include "progress.h"
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2011-05-26 15:44:53 +02:00
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#include "warnless.h"
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2001-10-01 10:59:17 +02:00
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/* The last #include file should be: */
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#include "memdebug.h"
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2008-04-23 00:53:53 +02:00
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#ifdef __SYMBIAN32__
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/* This isn't actually supported under Symbian OS */
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#undef SO_NOSIGPIPE
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#endif
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2004-05-13 12:40:17 +02:00
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static bool verifyconnect(curl_socket_t sockfd, int *error);
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2004-01-29 16:37:21 +01:00
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2012-01-24 02:28:06 +01:00
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static void
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tcpkeepalive(struct SessionHandle *data,
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2012-03-20 18:28:24 +01:00
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curl_socket_t sockfd)
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2012-01-24 02:28:06 +01:00
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{
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2012-03-16 19:06:34 +01:00
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int optval = data->set.tcp_keepalive?1:0;
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2012-01-24 02:28:06 +01:00
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/* only set IDLE and INTVL if setting KEEPALIVE is successful */
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if(setsockopt(sockfd, SOL_SOCKET, SO_KEEPALIVE,
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(void *)&optval, sizeof(optval)) < 0) {
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infof(data, "Failed to set SO_KEEPALIVE on fd %d\n", sockfd);
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}
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else {
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#ifdef TCP_KEEPIDLE
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2012-03-20 18:28:24 +01:00
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optval = curlx_sltosi(data->set.tcp_keepidle);
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2012-01-24 02:28:06 +01:00
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if(setsockopt(sockfd, IPPROTO_TCP, TCP_KEEPIDLE,
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(void *)&optval, sizeof(optval)) < 0) {
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infof(data, "Failed to set TCP_KEEPIDLE on fd %d\n", sockfd);
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}
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#endif
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#ifdef TCP_KEEPINTVL
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2012-03-20 18:28:24 +01:00
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optval = curlx_sltosi(data->set.tcp_keepintvl);
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2012-01-24 02:28:06 +01:00
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if(setsockopt(sockfd, IPPROTO_TCP, TCP_KEEPINTVL,
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(void *)&optval, sizeof(optval)) < 0) {
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infof(data, "Failed to set TCP_KEEPINTVL on fd %d\n", sockfd);
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}
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#endif
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}
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}
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2010-08-10 15:28:46 +02:00
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static CURLcode
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2004-06-29 13:20:07 +02:00
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singleipconnect(struct connectdata *conn,
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2006-07-21 08:50:39 +02:00
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const Curl_addrinfo *ai, /* start connecting to this */
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2004-06-29 13:20:07 +02:00
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long timeout_ms,
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2010-08-10 15:28:46 +02:00
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curl_socket_t *sock,
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2004-06-29 13:20:07 +02:00
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bool *connected);
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2008-02-07 23:25:04 +01:00
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/*
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* Curl_timeleft() returns the amount of milliseconds left allowed for the
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* transfer/connection. If the value is negative, the timeout time has already
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* elapsed.
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*
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2011-01-04 23:07:58 +01:00
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* The start time is stored in progress.t_startsingle - as set with
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* Curl_pgrsTime(..., TIMER_STARTSINGLE);
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*
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2008-02-07 23:25:04 +01:00
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* If 'nowp' is non-NULL, it points to the current time.
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* 'duringconnect' is FALSE if not during a connect, as then of course the
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* connect timeout is not taken into account!
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2011-06-10 14:40:46 +02:00
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*
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* @unittest: 1303
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2008-02-07 23:25:04 +01:00
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*/
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2011-01-04 23:07:58 +01:00
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long Curl_timeleft(struct SessionHandle *data,
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2008-02-07 23:25:04 +01:00
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struct timeval *nowp,
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bool duringconnect)
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{
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int timeout_set = 0;
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long timeout_ms = duringconnect?DEFAULT_CONNECT_TIMEOUT:0;
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struct timeval now;
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/* if a timeout is set, use the most restrictive one */
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if(data->set.timeout > 0)
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timeout_set |= 1;
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if(duringconnect && (data->set.connecttimeout > 0))
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timeout_set |= 2;
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switch (timeout_set) {
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case 1:
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timeout_ms = data->set.timeout;
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break;
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case 2:
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timeout_ms = data->set.connecttimeout;
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break;
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case 3:
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if(data->set.timeout < data->set.connecttimeout)
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timeout_ms = data->set.timeout;
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else
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timeout_ms = data->set.connecttimeout;
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break;
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default:
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/* use the default */
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if(!duringconnect)
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/* if we're not during connect, there's no default timeout so if we're
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at zero we better just return zero and not make it a negative number
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by the math below */
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return 0;
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break;
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}
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if(!nowp) {
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now = Curl_tvnow();
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nowp = &now;
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}
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2011-04-19 15:54:13 +02:00
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/* subtract elapsed time */
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2008-02-07 23:25:04 +01:00
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timeout_ms -= Curl_tvdiff(*nowp, data->progress.t_startsingle);
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2010-09-17 22:58:08 +02:00
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if(!timeout_ms)
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/* avoid returning 0 as that means no timeout! */
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return -1;
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2008-02-07 23:25:04 +01:00
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return timeout_ms;
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}
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2001-10-01 10:59:17 +02:00
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/*
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2004-04-26 09:11:06 +02:00
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* waitconnect() waits for a TCP connect on the given socket for the specified
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* number if milliseconds. It returns:
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2001-10-01 10:59:17 +02:00
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*/
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2004-04-26 09:11:06 +02:00
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#define WAITCONN_CONNECTED 0
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#define WAITCONN_SELECT_ERROR -1
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#define WAITCONN_TIMEOUT 1
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#define WAITCONN_FDSET_ERROR 2
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2010-08-10 15:28:46 +02:00
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#define WAITCONN_ABORTED 3
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2004-04-26 09:11:06 +02:00
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2001-10-01 10:59:17 +02:00
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static
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2010-01-11 22:38:13 +01:00
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int waitconnect(struct connectdata *conn,
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curl_socket_t sockfd, /* socket */
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2004-03-08 12:36:47 +01:00
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long timeout_msec)
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2001-10-01 10:59:17 +02:00
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{
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int rc;
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2004-01-30 08:51:51 +01:00
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#ifdef mpeix
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2004-01-29 16:29:47 +01:00
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/* Call this function once now, and ignore the results. We do this to
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"clear" the error state on the socket so that we can later read it
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reliably. This is reported necessary on the MPE/iX operating system. */
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2005-12-13 19:54:31 +01:00
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(void)verifyconnect(sockfd, NULL);
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2004-01-30 08:51:51 +01:00
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#endif
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2004-01-29 16:29:47 +01:00
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2010-02-02 17:25:07 +01:00
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for(;;) {
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2004-06-08 17:05:20 +02:00
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2010-01-11 22:38:13 +01:00
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/* now select() until we get connect or timeout */
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2011-06-04 21:19:14 +02:00
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rc = Curl_socket_ready(CURL_SOCKET_BAD, sockfd, timeout_msec>1000?
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1000:timeout_msec);
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2010-01-11 22:38:13 +01:00
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if(Curl_pgrsUpdate(conn))
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2010-08-10 15:28:46 +02:00
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return WAITCONN_ABORTED;
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2001-10-02 13:26:53 +02:00
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2010-01-11 22:38:13 +01:00
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if(-1 == rc)
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/* error, no connect here, try next */
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return WAITCONN_SELECT_ERROR;
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else if(0 == rc) {
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/* timeout */
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timeout_msec -= 1000;
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if(timeout_msec <= 0)
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return WAITCONN_TIMEOUT;
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continue;
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}
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if(rc & CURL_CSELECT_ERR)
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/* error condition caught */
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return WAITCONN_FDSET_ERROR;
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break;
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}
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2004-04-26 09:11:06 +02:00
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return WAITCONN_CONNECTED;
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2001-10-01 10:59:17 +02:00
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}
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2001-10-02 11:40:06 +02:00
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static CURLcode bindlocal(struct connectdata *conn,
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2008-10-09 21:23:50 +02:00
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curl_socket_t sockfd, int af)
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2001-10-02 11:40:06 +02:00
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{
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struct SessionHandle *data = conn->data;
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2009-02-27 13:07:14 +01:00
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struct Curl_sockaddr_storage sa;
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struct sockaddr *sock = (struct sockaddr *)&sa; /* bind to this address */
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2009-05-02 04:37:32 +02:00
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curl_socklen_t sizeof_sa = 0; /* size of the data sock points to */
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2009-02-27 13:07:14 +01:00
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struct sockaddr_in *si4 = (struct sockaddr_in *)&sa;
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2008-10-09 21:23:50 +02:00
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#ifdef ENABLE_IPV6
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2009-02-27 13:07:14 +01:00
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struct sockaddr_in6 *si6 = (struct sockaddr_in6 *)&sa;
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2008-10-09 21:23:50 +02:00
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#endif
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2009-02-27 13:07:14 +01:00
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2008-10-09 21:23:50 +02:00
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struct Curl_dns_entry *h=NULL;
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2006-01-30 09:24:07 +01:00
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unsigned short port = data->set.localport; /* use this port number, 0 for
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"random" */
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/* how many port numbers to try to bind to, increasing one at a time */
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int portnum = data->set.localportrange;
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2007-08-01 23:20:01 +02:00
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const char *dev = data->set.str[STRING_DEVICE];
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2008-10-11 17:32:32 +02:00
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int error;
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2009-02-27 13:07:14 +01:00
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char myhost[256] = "";
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int done = 0; /* -1 for error, 1 for address found */
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2011-12-13 16:18:08 +01:00
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bool is_interface = FALSE;
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bool is_host = FALSE;
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2011-11-04 21:48:05 +01:00
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static const char *if_prefix = "if!";
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static const char *host_prefix = "host!";
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2001-10-02 11:40:06 +02:00
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|
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/*************************************************************
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|
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|
* Select device to bind socket to
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|
*************************************************************/
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2011-04-20 15:17:42 +02:00
|
|
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if(!dev && !port)
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2009-02-27 13:07:14 +01:00
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/* no local kind of binding was requested */
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return CURLE_OK;
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memset(&sa, 0, sizeof(struct Curl_sockaddr_storage));
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|
|
2007-11-05 10:45:09 +01:00
|
|
|
if(dev && (strlen(dev)<255) ) {
|
2011-11-04 21:48:05 +01:00
|
|
|
if(strncmp(if_prefix, dev, strlen(if_prefix)) == 0) {
|
|
|
|
dev += strlen(if_prefix);
|
|
|
|
is_interface = TRUE;
|
|
|
|
}
|
|
|
|
else if(strncmp(host_prefix, dev, strlen(host_prefix)) == 0) {
|
|
|
|
dev += strlen(host_prefix);
|
|
|
|
is_host = TRUE;
|
|
|
|
}
|
2001-10-02 11:40:06 +02:00
|
|
|
|
2009-02-27 13:07:14 +01:00
|
|
|
/* interface */
|
2011-11-04 21:48:05 +01:00
|
|
|
if(!is_host && (is_interface || Curl_if_is_interface_name(dev))) {
|
|
|
|
if(Curl_if2ip(af, dev, myhost, sizeof(myhost)) == NULL)
|
|
|
|
return CURLE_INTERFACE_FAILED;
|
|
|
|
|
2002-04-23 01:56:13 +02:00
|
|
|
/*
|
2008-10-09 21:23:50 +02:00
|
|
|
* We now have the numerical IP address in the 'myhost' buffer
|
2002-04-23 01:56:13 +02:00
|
|
|
*/
|
2009-02-27 13:07:14 +01:00
|
|
|
infof(data, "Local Interface %s is ip %s using address family %i\n",
|
|
|
|
dev, myhost, af);
|
|
|
|
done = 1;
|
2004-02-13 10:50:23 +01:00
|
|
|
|
2009-02-27 13:07:14 +01:00
|
|
|
#ifdef SO_BINDTODEVICE
|
|
|
|
/* I am not sure any other OSs than Linux that provide this feature, and
|
|
|
|
* at the least I cannot test. --Ben
|
|
|
|
*
|
|
|
|
* This feature allows one to tightly bind the local socket to a
|
|
|
|
* particular interface. This will force even requests to other local
|
|
|
|
* interfaces to go out the external interface.
|
|
|
|
*
|
|
|
|
*
|
|
|
|
* Only bind to the interface when specified as interface, not just as a
|
|
|
|
* hostname or ip address.
|
|
|
|
*/
|
|
|
|
if(setsockopt(sockfd, SOL_SOCKET, SO_BINDTODEVICE,
|
2009-08-29 06:12:51 +02:00
|
|
|
dev, (curl_socklen_t)strlen(dev)+1) != 0) {
|
2009-02-27 13:07:14 +01:00
|
|
|
error = SOCKERRNO;
|
|
|
|
infof(data, "SO_BINDTODEVICE %s failed with errno %d: %s;"
|
|
|
|
" will do regular bind\n",
|
|
|
|
dev, error, Curl_strerror(conn, error));
|
|
|
|
/* This is typically "errno 1, error: Operation not permitted" if
|
|
|
|
you're not running as root or another suitable privileged user */
|
2006-01-30 09:24:07 +01:00
|
|
|
}
|
2009-02-27 13:07:14 +01:00
|
|
|
#endif
|
2001-10-02 11:40:06 +02:00
|
|
|
}
|
2009-02-27 13:07:14 +01:00
|
|
|
else {
|
2004-02-15 14:55:24 +01:00
|
|
|
/*
|
|
|
|
* This was not an interface, resolve the name as a host name
|
|
|
|
* or IP number
|
2009-02-27 13:07:14 +01:00
|
|
|
*
|
2008-10-09 21:23:50 +02:00
|
|
|
* Temporarily force name resolution to use only the address type
|
|
|
|
* of the connection. The resolve functions should really be changed
|
|
|
|
* to take a type parameter instead.
|
|
|
|
*/
|
2010-11-11 14:51:39 +01:00
|
|
|
long ipver = conn->ip_version;
|
2009-02-27 13:07:14 +01:00
|
|
|
int rc;
|
|
|
|
|
2011-04-20 15:17:42 +02:00
|
|
|
if(af == AF_INET)
|
2010-11-11 14:51:39 +01:00
|
|
|
conn->ip_version = CURL_IPRESOLVE_V4;
|
2008-10-10 05:46:32 +02:00
|
|
|
#ifdef ENABLE_IPV6
|
2011-04-20 15:17:42 +02:00
|
|
|
else if(af == AF_INET6)
|
2010-11-11 14:51:39 +01:00
|
|
|
conn->ip_version = CURL_IPRESOLVE_V6;
|
2008-10-10 05:46:32 +02:00
|
|
|
#endif
|
2008-10-09 21:23:50 +02:00
|
|
|
|
2007-08-01 23:20:01 +02:00
|
|
|
rc = Curl_resolv(conn, dev, 0, &h);
|
2004-04-26 16:18:00 +02:00
|
|
|
if(rc == CURLRESOLV_PENDING)
|
2011-01-31 00:10:35 +01:00
|
|
|
(void)Curl_resolver_wait_resolv(conn, &h);
|
2010-11-11 14:51:39 +01:00
|
|
|
conn->ip_version = ipver;
|
2004-02-15 14:55:24 +01:00
|
|
|
|
2006-01-30 09:24:07 +01:00
|
|
|
if(h) {
|
2008-10-09 21:23:50 +02:00
|
|
|
/* convert the resolved address, sizeof myhost >= INET_ADDRSTRLEN */
|
2009-02-27 13:07:14 +01:00
|
|
|
Curl_printable_address(h->addr, myhost, sizeof(myhost));
|
|
|
|
infof(data, "Name '%s' family %i resolved to '%s' family %i\n",
|
|
|
|
dev, af, myhost, h->addr->ai_family);
|
2008-10-09 21:23:50 +02:00
|
|
|
Curl_resolv_unlock(data, h);
|
2009-02-27 13:07:14 +01:00
|
|
|
done = 1;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
/*
|
|
|
|
* provided dev was no interface (or interfaces are not supported
|
|
|
|
* e.g. solaris) no ip address and no domain we fail here
|
|
|
|
*/
|
|
|
|
done = -1;
|
|
|
|
}
|
2001-10-02 11:40:06 +02:00
|
|
|
}
|
|
|
|
|
2009-02-27 13:07:14 +01:00
|
|
|
if(done > 0) {
|
|
|
|
#ifdef ENABLE_IPV6
|
|
|
|
/* ipv6 address */
|
2009-02-28 02:35:53 +01:00
|
|
|
if((af == AF_INET6) &&
|
|
|
|
(Curl_inet_pton(AF_INET6, myhost, &si6->sin6_addr) > 0)) {
|
2009-02-27 13:07:14 +01:00
|
|
|
si6->sin6_family = AF_INET6;
|
|
|
|
si6->sin6_port = htons(port);
|
|
|
|
sizeof_sa = sizeof(struct sockaddr_in6);
|
2004-02-13 10:50:23 +01:00
|
|
|
}
|
2009-02-27 13:07:14 +01:00
|
|
|
else
|
2004-02-13 10:50:23 +01:00
|
|
|
#endif
|
2009-02-27 13:07:14 +01:00
|
|
|
/* ipv4 address */
|
2009-02-28 02:35:53 +01:00
|
|
|
if((af == AF_INET) &&
|
|
|
|
(Curl_inet_pton(AF_INET, myhost, &si4->sin_addr) > 0)) {
|
2009-02-27 13:07:14 +01:00
|
|
|
si4->sin_family = AF_INET;
|
|
|
|
si4->sin_port = htons(port);
|
|
|
|
sizeof_sa = sizeof(struct sockaddr_in);
|
|
|
|
}
|
|
|
|
}
|
2006-01-30 09:24:07 +01:00
|
|
|
|
2009-02-27 13:07:14 +01:00
|
|
|
if(done < 1) {
|
|
|
|
failf(data, "Couldn't bind to '%s'", dev);
|
|
|
|
return CURLE_INTERFACE_FAILED;
|
2008-10-09 21:23:50 +02:00
|
|
|
}
|
2009-02-27 13:07:14 +01:00
|
|
|
}
|
|
|
|
else {
|
|
|
|
/* no device was given, prepare sa to match af's needs */
|
2008-10-09 21:23:50 +02:00
|
|
|
#ifdef ENABLE_IPV6
|
2011-04-22 23:01:30 +02:00
|
|
|
if(af == AF_INET6) {
|
2009-02-27 13:07:14 +01:00
|
|
|
si6->sin6_family = AF_INET6;
|
|
|
|
si6->sin6_port = htons(port);
|
|
|
|
sizeof_sa = sizeof(struct sockaddr_in6);
|
2008-10-09 21:23:50 +02:00
|
|
|
}
|
2009-02-27 13:07:14 +01:00
|
|
|
else
|
2008-10-09 21:23:50 +02:00
|
|
|
#endif
|
2011-04-22 23:01:30 +02:00
|
|
|
if(af == AF_INET) {
|
2009-02-27 13:07:14 +01:00
|
|
|
si4->sin_family = AF_INET;
|
|
|
|
si4->sin_port = htons(port);
|
|
|
|
sizeof_sa = sizeof(struct sockaddr_in);
|
|
|
|
}
|
2006-01-30 09:24:07 +01:00
|
|
|
}
|
2004-02-09 12:40:00 +01:00
|
|
|
|
2010-02-02 17:25:07 +01:00
|
|
|
for(;;) {
|
2011-04-22 23:01:30 +02:00
|
|
|
if(bind(sockfd, sock, sizeof_sa) >= 0) {
|
2011-04-20 15:17:42 +02:00
|
|
|
/* we succeeded to bind */
|
2006-01-30 09:24:07 +01:00
|
|
|
struct Curl_sockaddr_storage add;
|
2009-05-02 04:37:32 +02:00
|
|
|
curl_socklen_t size = sizeof(add);
|
2008-10-24 18:59:35 +02:00
|
|
|
memset(&add, 0, sizeof(struct Curl_sockaddr_storage));
|
2006-12-22 14:30:54 +01:00
|
|
|
if(getsockname(sockfd, (struct sockaddr *) &add, &size) < 0) {
|
2008-10-11 17:32:32 +02:00
|
|
|
data->state.os_errno = error = SOCKERRNO;
|
|
|
|
failf(data, "getsockname() failed with errno %d: %s",
|
|
|
|
error, Curl_strerror(conn, error));
|
2007-07-13 22:04:53 +02:00
|
|
|
return CURLE_INTERFACE_FAILED;
|
2001-10-02 11:40:06 +02:00
|
|
|
}
|
2010-02-04 20:44:31 +01:00
|
|
|
infof(data, "Local port: %hu\n", port);
|
2007-10-04 12:01:41 +02:00
|
|
|
conn->bits.bound = TRUE;
|
2006-01-30 09:24:07 +01:00
|
|
|
return CURLE_OK;
|
2001-10-02 11:40:06 +02:00
|
|
|
}
|
2009-02-27 13:07:14 +01:00
|
|
|
|
2006-01-30 09:24:07 +01:00
|
|
|
if(--portnum > 0) {
|
2010-02-04 20:44:31 +01:00
|
|
|
infof(data, "Bind to local port %hu failed, trying next\n", port);
|
2006-01-30 09:24:07 +01:00
|
|
|
port++; /* try next port */
|
2009-02-27 13:07:14 +01:00
|
|
|
/* We re-use/clobber the port variable here below */
|
|
|
|
if(sock->sa_family == AF_INET)
|
|
|
|
si4->sin_port = ntohs(port);
|
|
|
|
#ifdef ENABLE_IPV6
|
|
|
|
else
|
|
|
|
si6->sin6_port = ntohs(port);
|
|
|
|
#endif
|
2006-01-30 09:24:07 +01:00
|
|
|
}
|
|
|
|
else
|
|
|
|
break;
|
2010-02-02 17:25:07 +01:00
|
|
|
}
|
2001-10-02 11:40:06 +02:00
|
|
|
|
2008-10-11 17:32:32 +02:00
|
|
|
data->state.os_errno = error = SOCKERRNO;
|
|
|
|
failf(data, "bind failed with errno %d: %s",
|
|
|
|
error, Curl_strerror(conn, error));
|
2006-01-30 09:24:07 +01:00
|
|
|
|
2008-10-09 21:23:50 +02:00
|
|
|
return CURLE_INTERFACE_FAILED;
|
2001-10-02 11:40:06 +02:00
|
|
|
}
|
2002-04-23 01:56:13 +02:00
|
|
|
|
2003-10-15 13:42:57 +02:00
|
|
|
/*
|
|
|
|
* verifyconnect() returns TRUE if the connect really has happened.
|
|
|
|
*/
|
2004-05-13 12:40:17 +02:00
|
|
|
static bool verifyconnect(curl_socket_t sockfd, int *error)
|
2001-10-02 19:18:46 +02:00
|
|
|
{
|
2004-05-13 12:40:17 +02:00
|
|
|
bool rc = TRUE;
|
|
|
|
#ifdef SO_ERROR
|
2001-10-02 19:18:46 +02:00
|
|
|
int err = 0;
|
2009-05-02 04:37:32 +02:00
|
|
|
curl_socklen_t errSize = sizeof(err);
|
2004-05-13 12:40:17 +02:00
|
|
|
|
|
|
|
#ifdef WIN32
|
|
|
|
/*
|
|
|
|
* In October 2003 we effectively nullified this function on Windows due to
|
|
|
|
* problems with it using all CPU in multi-threaded cases.
|
|
|
|
*
|
|
|
|
* In May 2004, we bring it back to offer more info back on connect failures.
|
|
|
|
* Gisle Vanem could reproduce the former problems with this function, but
|
|
|
|
* could avoid them by adding this SleepEx() call below:
|
|
|
|
*
|
|
|
|
* "I don't have Rational Quantify, but the hint from his post was
|
|
|
|
* ntdll::NtRemoveIoCompletion(). So I'd assume the SleepEx (or maybe
|
|
|
|
* just Sleep(0) would be enough?) would release whatever
|
|
|
|
* mutex/critical-section the ntdll call is waiting on.
|
|
|
|
*
|
|
|
|
* Someone got to verify this on Win-NT 4.0, 2000."
|
|
|
|
*/
|
2004-11-02 11:12:22 +01:00
|
|
|
|
|
|
|
#ifdef _WIN32_WCE
|
|
|
|
Sleep(0);
|
|
|
|
#else
|
2004-05-13 12:40:17 +02:00
|
|
|
SleepEx(0, FALSE);
|
2004-11-02 11:12:22 +01:00
|
|
|
#endif
|
|
|
|
|
2004-05-13 12:40:17 +02:00
|
|
|
#endif
|
|
|
|
|
2007-11-05 10:45:09 +01:00
|
|
|
if(0 != getsockopt(sockfd, SOL_SOCKET, SO_ERROR, (void *)&err, &errSize))
|
2007-02-16 19:19:35 +01:00
|
|
|
err = SOCKERRNO;
|
2004-11-02 11:12:22 +01:00
|
|
|
#ifdef _WIN32_WCE
|
2007-04-19 22:16:28 +02:00
|
|
|
/* Old WinCE versions don't support SO_ERROR */
|
2007-11-05 10:45:09 +01:00
|
|
|
if(WSAENOPROTOOPT == err) {
|
2007-04-19 22:16:28 +02:00
|
|
|
SET_SOCKERRNO(0);
|
|
|
|
err = 0;
|
|
|
|
}
|
2007-09-06 00:01:57 +02:00
|
|
|
#endif
|
|
|
|
#ifdef __minix
|
|
|
|
/* Minix 3.1.x doesn't support getsockopt on UDP sockets */
|
2007-11-05 10:45:09 +01:00
|
|
|
if(EBADIOCTL == err) {
|
2007-09-06 00:01:57 +02:00
|
|
|
SET_SOCKERRNO(0);
|
|
|
|
err = 0;
|
|
|
|
}
|
2004-11-02 11:12:22 +01:00
|
|
|
#endif
|
2007-11-05 10:45:09 +01:00
|
|
|
if((0 == err) || (EISCONN == err))
|
2003-10-15 13:42:57 +02:00
|
|
|
/* we are connected, awesome! */
|
2004-05-13 12:40:17 +02:00
|
|
|
rc = TRUE;
|
|
|
|
else
|
|
|
|
/* This wasn't a successful connect */
|
|
|
|
rc = FALSE;
|
2007-11-05 10:45:09 +01:00
|
|
|
if(error)
|
2004-05-13 12:40:17 +02:00
|
|
|
*error = err;
|
2003-10-15 13:42:57 +02:00
|
|
|
#else
|
2004-03-11 14:13:35 +01:00
|
|
|
(void)sockfd;
|
2007-11-05 10:45:09 +01:00
|
|
|
if(error)
|
2007-02-16 19:19:35 +01:00
|
|
|
*error = SOCKERRNO;
|
2003-10-05 17:02:58 +02:00
|
|
|
#endif
|
2004-05-13 12:40:17 +02:00
|
|
|
return rc;
|
2001-10-02 19:18:46 +02:00
|
|
|
}
|
|
|
|
|
2004-06-29 13:20:07 +02:00
|
|
|
/* Used within the multi interface. Try next IP address, return TRUE if no
|
2008-08-26 23:28:57 +02:00
|
|
|
more address exists or error */
|
2010-08-10 15:28:46 +02:00
|
|
|
static CURLcode trynextip(struct connectdata *conn,
|
|
|
|
int sockindex,
|
|
|
|
bool *connected)
|
2004-06-29 13:20:07 +02:00
|
|
|
{
|
|
|
|
curl_socket_t sockfd;
|
|
|
|
Curl_addrinfo *ai;
|
|
|
|
|
2010-06-24 23:19:27 +02:00
|
|
|
/* First clean up after the failed socket.
|
|
|
|
Don't close it yet to ensure that the next IP's socket gets a different
|
|
|
|
file descriptor, which can prevent bugs when the curl_multi_socket_action
|
|
|
|
interface is used with certain select() replacements such as kqueue. */
|
|
|
|
curl_socket_t fd_to_close = conn->sock[sockindex];
|
2006-07-11 02:23:21 +02:00
|
|
|
conn->sock[sockindex] = CURL_SOCKET_BAD;
|
2006-07-17 21:22:28 +02:00
|
|
|
*connected = FALSE;
|
|
|
|
|
2010-06-24 23:19:27 +02:00
|
|
|
if(sockindex != FIRSTSOCKET) {
|
2011-05-16 23:46:43 +02:00
|
|
|
Curl_closesocket(conn, fd_to_close);
|
2010-08-10 15:28:46 +02:00
|
|
|
return CURLE_COULDNT_CONNECT; /* no next */
|
2010-06-24 23:19:27 +02:00
|
|
|
}
|
2005-10-25 15:15:11 +02:00
|
|
|
|
2004-08-04 14:38:01 +02:00
|
|
|
/* try the next address */
|
2004-06-29 13:20:07 +02:00
|
|
|
ai = conn->ip_addr->ai_next;
|
|
|
|
|
2007-11-05 10:45:09 +01:00
|
|
|
while(ai) {
|
2010-08-10 15:28:46 +02:00
|
|
|
CURLcode res = singleipconnect(conn, ai, 0L, &sockfd, connected);
|
|
|
|
if(res)
|
|
|
|
return res;
|
2004-06-29 13:20:07 +02:00
|
|
|
if(sockfd != CURL_SOCKET_BAD) {
|
|
|
|
/* store the new socket descriptor */
|
|
|
|
conn->sock[sockindex] = sockfd;
|
2004-08-04 14:38:01 +02:00
|
|
|
conn->ip_addr = ai;
|
2011-05-16 23:46:43 +02:00
|
|
|
Curl_closesocket(conn, fd_to_close);
|
2010-08-10 15:28:46 +02:00
|
|
|
return CURLE_OK;
|
2004-06-29 13:20:07 +02:00
|
|
|
}
|
|
|
|
ai = ai->ai_next;
|
|
|
|
}
|
2011-05-16 23:46:43 +02:00
|
|
|
Curl_closesocket(conn, fd_to_close);
|
2010-08-10 15:28:46 +02:00
|
|
|
return CURLE_COULDNT_CONNECT;
|
2004-06-29 13:20:07 +02:00
|
|
|
}
|
|
|
|
|
2010-11-30 22:14:37 +01:00
|
|
|
/* Copies connection info into the session handle to make it available
|
|
|
|
when the session handle is no longer associated with a connection. */
|
|
|
|
void Curl_persistconninfo(struct connectdata *conn)
|
|
|
|
{
|
|
|
|
memcpy(conn->data->info.conn_primary_ip, conn->primary_ip, MAX_IPADR_LEN);
|
|
|
|
memcpy(conn->data->info.conn_local_ip, conn->local_ip, MAX_IPADR_LEN);
|
|
|
|
conn->data->info.conn_primary_port = conn->primary_port;
|
|
|
|
conn->data->info.conn_local_port = conn->local_port;
|
|
|
|
}
|
|
|
|
|
2010-06-05 00:29:09 +02:00
|
|
|
/* retrieves ip address and port from a sockaddr structure */
|
2010-06-07 16:53:31 +02:00
|
|
|
static bool getaddressinfo(struct sockaddr* sa, char* addr,
|
2010-06-05 00:29:09 +02:00
|
|
|
long* port)
|
|
|
|
{
|
2010-06-07 16:53:31 +02:00
|
|
|
unsigned short us_port;
|
2010-06-05 00:29:09 +02:00
|
|
|
struct sockaddr_in* si = NULL;
|
|
|
|
#ifdef ENABLE_IPV6
|
|
|
|
struct sockaddr_in6* si6 = NULL;
|
|
|
|
#endif
|
2010-11-30 06:20:54 +01:00
|
|
|
#if defined(HAVE_SYS_UN_H) && defined(AF_UNIX)
|
|
|
|
struct sockaddr_un* su = NULL;
|
|
|
|
#endif
|
2010-06-05 00:29:09 +02:00
|
|
|
|
|
|
|
switch (sa->sa_family) {
|
|
|
|
case AF_INET:
|
|
|
|
si = (struct sockaddr_in*) sa;
|
2010-06-07 16:53:31 +02:00
|
|
|
if(Curl_inet_ntop(sa->sa_family, &si->sin_addr,
|
2010-12-03 14:29:06 +01:00
|
|
|
addr, MAX_IPADR_LEN)) {
|
|
|
|
us_port = ntohs(si->sin_port);
|
|
|
|
*port = us_port;
|
|
|
|
return TRUE;
|
|
|
|
}
|
2010-06-05 00:29:09 +02:00
|
|
|
break;
|
|
|
|
#ifdef ENABLE_IPV6
|
|
|
|
case AF_INET6:
|
|
|
|
si6 = (struct sockaddr_in6*)sa;
|
2010-06-07 16:53:31 +02:00
|
|
|
if(Curl_inet_ntop(sa->sa_family, &si6->sin6_addr,
|
2010-12-03 14:29:06 +01:00
|
|
|
addr, MAX_IPADR_LEN)) {
|
|
|
|
us_port = ntohs(si6->sin6_port);
|
|
|
|
*port = us_port;
|
|
|
|
return TRUE;
|
|
|
|
}
|
2010-06-05 00:29:09 +02:00
|
|
|
break;
|
2010-11-30 06:20:54 +01:00
|
|
|
#endif
|
|
|
|
#if defined(HAVE_SYS_UN_H) && defined(AF_UNIX)
|
|
|
|
case AF_UNIX:
|
|
|
|
su = (struct sockaddr_un*)sa;
|
|
|
|
snprintf(addr, MAX_IPADR_LEN, "%s", su->sun_path);
|
|
|
|
*port = 0;
|
2010-12-03 14:29:06 +01:00
|
|
|
return TRUE;
|
2010-06-05 00:29:09 +02:00
|
|
|
#endif
|
|
|
|
default:
|
2010-12-03 14:29:06 +01:00
|
|
|
break;
|
2010-06-05 00:29:09 +02:00
|
|
|
}
|
2010-12-03 14:29:06 +01:00
|
|
|
|
|
|
|
addr[0] = '\0';
|
|
|
|
*port = 0;
|
|
|
|
|
|
|
|
return FALSE;
|
2010-06-05 00:29:09 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* retrieves the start/end point information of a socket of an established
|
|
|
|
connection */
|
2010-06-07 16:53:31 +02:00
|
|
|
void Curl_updateconninfo(struct connectdata *conn, curl_socket_t sockfd)
|
2010-06-05 00:29:09 +02:00
|
|
|
{
|
2010-06-07 16:53:31 +02:00
|
|
|
int error;
|
|
|
|
curl_socklen_t len;
|
2010-06-05 00:29:09 +02:00
|
|
|
struct Curl_sockaddr_storage ssrem;
|
|
|
|
struct Curl_sockaddr_storage ssloc;
|
2010-06-07 16:53:31 +02:00
|
|
|
struct SessionHandle *data = conn->data;
|
|
|
|
|
2010-11-30 22:14:37 +01:00
|
|
|
if(!conn->bits.reuse) {
|
2010-06-08 19:29:20 +02:00
|
|
|
|
2010-11-30 22:14:37 +01:00
|
|
|
len = sizeof(struct Curl_sockaddr_storage);
|
|
|
|
if(getpeername(sockfd, (struct sockaddr*) &ssrem, &len)) {
|
|
|
|
error = SOCKERRNO;
|
|
|
|
failf(data, "getpeername() failed with errno %d: %s",
|
|
|
|
error, Curl_strerror(conn, error));
|
|
|
|
return;
|
|
|
|
}
|
2010-06-05 00:29:09 +02:00
|
|
|
|
2010-11-30 22:14:37 +01:00
|
|
|
len = sizeof(struct Curl_sockaddr_storage);
|
|
|
|
if(getsockname(sockfd, (struct sockaddr*) &ssloc, &len)) {
|
|
|
|
error = SOCKERRNO;
|
|
|
|
failf(data, "getsockname() failed with errno %d: %s",
|
|
|
|
error, Curl_strerror(conn, error));
|
|
|
|
return;
|
|
|
|
}
|
2010-06-05 00:29:09 +02:00
|
|
|
|
2010-11-30 22:14:37 +01:00
|
|
|
if(!getaddressinfo((struct sockaddr*)&ssrem,
|
|
|
|
conn->primary_ip, &conn->primary_port)) {
|
|
|
|
error = ERRNO;
|
|
|
|
failf(data, "ssrem inet_ntop() failed with errno %d: %s",
|
|
|
|
error, Curl_strerror(conn, error));
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if(!getaddressinfo((struct sockaddr*)&ssloc,
|
|
|
|
conn->local_ip, &conn->local_port)) {
|
|
|
|
error = ERRNO;
|
|
|
|
failf(data, "ssloc inet_ntop() failed with errno %d: %s",
|
|
|
|
error, Curl_strerror(conn, error));
|
|
|
|
return;
|
|
|
|
}
|
2010-06-05 00:29:09 +02:00
|
|
|
|
2010-06-07 16:53:31 +02:00
|
|
|
}
|
2010-11-30 22:14:37 +01:00
|
|
|
|
|
|
|
/* persist connection info in session handle */
|
|
|
|
Curl_persistconninfo(conn);
|
2010-06-05 00:29:09 +02:00
|
|
|
}
|
|
|
|
|
2002-08-12 11:43:20 +02:00
|
|
|
/*
|
|
|
|
* Curl_is_connected() is used from the multi interface to check if the
|
|
|
|
* firstsocket has connected.
|
|
|
|
*/
|
|
|
|
|
|
|
|
CURLcode Curl_is_connected(struct connectdata *conn,
|
2004-06-29 13:20:07 +02:00
|
|
|
int sockindex,
|
2002-08-12 11:43:20 +02:00
|
|
|
bool *connected)
|
|
|
|
{
|
|
|
|
int rc;
|
|
|
|
struct SessionHandle *data = conn->data;
|
2004-06-29 13:20:07 +02:00
|
|
|
CURLcode code = CURLE_OK;
|
|
|
|
curl_socket_t sockfd = conn->sock[sockindex];
|
|
|
|
long allow = DEFAULT_CONNECT_TIMEOUT;
|
2010-08-21 00:29:35 +02:00
|
|
|
int error = 0;
|
2010-12-23 22:19:25 +01:00
|
|
|
struct timeval now;
|
2002-08-12 11:43:20 +02:00
|
|
|
|
2007-02-21 20:03:20 +01:00
|
|
|
DEBUGASSERT(sockindex >= FIRSTSOCKET && sockindex <= SECONDARYSOCKET);
|
2002-08-12 11:43:20 +02:00
|
|
|
|
2004-06-29 13:20:07 +02:00
|
|
|
*connected = FALSE; /* a very negative world view is best */
|
2002-08-12 11:43:20 +02:00
|
|
|
|
2011-08-18 23:35:15 +02:00
|
|
|
if(conn->bits.tcpconnect[sockindex]) {
|
2002-12-13 17:15:19 +01:00
|
|
|
/* we are connected already! */
|
2002-12-13 14:47:58 +01:00
|
|
|
*connected = TRUE;
|
|
|
|
return CURLE_OK;
|
|
|
|
}
|
2002-08-12 11:43:20 +02:00
|
|
|
|
2010-12-23 22:19:25 +01:00
|
|
|
now = Curl_tvnow();
|
|
|
|
|
2008-02-07 23:25:04 +01:00
|
|
|
/* figure out how long time we have left to connect */
|
2011-01-04 23:07:58 +01:00
|
|
|
allow = Curl_timeleft(data, &now, TRUE);
|
2008-02-07 23:25:04 +01:00
|
|
|
|
|
|
|
if(allow < 0) {
|
|
|
|
/* time-out, bail out, go home */
|
|
|
|
failf(data, "Connection time-out");
|
|
|
|
return CURLE_OPERATION_TIMEDOUT;
|
|
|
|
}
|
|
|
|
|
2002-08-12 11:43:20 +02:00
|
|
|
/* check for connect without timeout as we want to return immediately */
|
2010-01-11 22:38:13 +01:00
|
|
|
rc = waitconnect(conn, sockfd, 0);
|
2010-12-23 22:19:25 +01:00
|
|
|
if(WAITCONN_TIMEOUT == rc) {
|
|
|
|
if(curlx_tvdiff(now, conn->connecttime) >= conn->timeoutms_per_addr) {
|
|
|
|
infof(data, "After %ldms connect time, move on!\n",
|
|
|
|
conn->timeoutms_per_addr);
|
|
|
|
goto next;
|
|
|
|
}
|
|
|
|
|
2010-08-21 00:29:35 +02:00
|
|
|
/* not an error, but also no connection yet */
|
|
|
|
return code;
|
2010-12-23 22:19:25 +01:00
|
|
|
}
|
2002-08-12 11:43:20 +02:00
|
|
|
|
2004-06-10 13:06:21 +02:00
|
|
|
if(WAITCONN_CONNECTED == rc) {
|
2007-11-05 10:45:09 +01:00
|
|
|
if(verifyconnect(sockfd, &error)) {
|
2011-04-28 09:39:33 +02:00
|
|
|
/* we are connected with TCP, awesome! */
|
|
|
|
|
|
|
|
/* see if we need to do any proxy magic first once we connected */
|
|
|
|
code = Curl_connected_proxy(conn);
|
|
|
|
if(code)
|
|
|
|
return code;
|
|
|
|
|
2011-08-18 23:35:15 +02:00
|
|
|
conn->bits.tcpconnect[sockindex] = TRUE;
|
2002-08-12 11:43:20 +02:00
|
|
|
*connected = TRUE;
|
2011-08-19 00:16:01 +02:00
|
|
|
if(sockindex == FIRSTSOCKET)
|
|
|
|
Curl_pgrsTime(data, TIMER_CONNECT); /* connect done */
|
2010-05-07 23:49:29 +02:00
|
|
|
Curl_verboseconnect(conn);
|
2010-06-07 16:53:31 +02:00
|
|
|
Curl_updateconninfo(conn, sockfd);
|
2010-06-05 00:29:09 +02:00
|
|
|
|
2002-08-12 11:43:20 +02:00
|
|
|
return CURLE_OK;
|
|
|
|
}
|
|
|
|
/* nope, not connected for real */
|
|
|
|
}
|
2010-08-21 00:29:35 +02:00
|
|
|
else {
|
2004-06-29 13:20:07 +02:00
|
|
|
/* nope, not connected */
|
2007-11-05 10:45:09 +01:00
|
|
|
if(WAITCONN_FDSET_ERROR == rc) {
|
2005-12-13 19:54:31 +01:00
|
|
|
(void)verifyconnect(sockfd, &error);
|
2010-08-21 00:29:35 +02:00
|
|
|
infof(data, "%s\n",Curl_strerror(conn, error));
|
2004-12-06 23:45:45 +01:00
|
|
|
}
|
|
|
|
else
|
2004-12-13 18:52:55 +01:00
|
|
|
infof(data, "Connection failed\n");
|
2003-03-11 17:28:23 +01:00
|
|
|
}
|
2010-08-21 00:29:35 +02:00
|
|
|
|
2002-08-12 11:43:20 +02:00
|
|
|
/*
|
2010-08-21 00:29:35 +02:00
|
|
|
* The connection failed here, we should attempt to connect to the "next
|
|
|
|
* address" for the given host. But first remember the latest error.
|
2002-08-12 11:43:20 +02:00
|
|
|
*/
|
2010-08-21 00:29:35 +02:00
|
|
|
if(error) {
|
|
|
|
data->state.os_errno = error;
|
|
|
|
SET_SOCKERRNO(error);
|
|
|
|
}
|
2010-12-23 22:19:25 +01:00
|
|
|
next:
|
2010-08-21 00:29:35 +02:00
|
|
|
|
2012-01-23 10:45:24 +01:00
|
|
|
conn->timeoutms_per_addr = conn->ip_addr->ai_next == NULL ?
|
|
|
|
allow : allow / 2;
|
2010-08-21 00:29:35 +02:00
|
|
|
code = trynextip(conn, sockindex, connected);
|
|
|
|
|
|
|
|
if(code) {
|
|
|
|
error = SOCKERRNO;
|
|
|
|
data->state.os_errno = error;
|
|
|
|
failf(data, "Failed connect to %s:%ld; %s",
|
|
|
|
conn->host.name, conn->port, Curl_strerror(conn, error));
|
|
|
|
}
|
2002-08-12 11:43:20 +02:00
|
|
|
|
2004-06-29 13:20:07 +02:00
|
|
|
return code;
|
2002-08-12 11:43:20 +02:00
|
|
|
}
|
|
|
|
|
2004-06-23 11:08:03 +02:00
|
|
|
static void tcpnodelay(struct connectdata *conn,
|
|
|
|
curl_socket_t sockfd)
|
2004-03-25 14:37:18 +01:00
|
|
|
{
|
|
|
|
#ifdef TCP_NODELAY
|
|
|
|
struct SessionHandle *data= conn->data;
|
2009-05-02 04:37:32 +02:00
|
|
|
curl_socklen_t onoff = (curl_socklen_t) data->set.tcp_nodelay;
|
2011-09-09 15:20:31 +02:00
|
|
|
int level = IPPROTO_TCP;
|
2006-02-26 18:08:33 +01:00
|
|
|
|
2008-05-03 15:43:35 +02:00
|
|
|
#if 0
|
|
|
|
/* The use of getprotobyname() is disabled since it isn't thread-safe on
|
|
|
|
numerous systems. On these getprotobyname_r() should be used instead, but
|
|
|
|
that exists in at least one 4 arg version and one 5 arg version, and
|
|
|
|
since the proto number rarely changes anyway we now just use the hard
|
|
|
|
coded number. The "proper" fix would need a configure check for the
|
|
|
|
correct function much in the same style the gethostbyname_r versions are
|
|
|
|
detected. */
|
2006-02-26 18:08:33 +01:00
|
|
|
struct protoent *pe = getprotobyname("tcp");
|
2007-11-05 10:45:09 +01:00
|
|
|
if(pe)
|
2011-09-09 15:20:31 +02:00
|
|
|
level = pe->p_proto;
|
2006-02-26 18:08:33 +01:00
|
|
|
#endif
|
|
|
|
|
2011-09-09 15:20:31 +02:00
|
|
|
if(setsockopt(sockfd, level, TCP_NODELAY, (void *)&onoff,
|
2004-03-30 15:05:45 +02:00
|
|
|
sizeof(onoff)) < 0)
|
2004-03-25 14:37:18 +01:00
|
|
|
infof(data, "Could not set TCP_NODELAY: %s\n",
|
2007-02-16 19:19:35 +01:00
|
|
|
Curl_strerror(conn, SOCKERRNO));
|
2004-03-25 15:01:01 +01:00
|
|
|
else
|
2004-03-26 08:03:30 +01:00
|
|
|
infof(data,"TCP_NODELAY set\n");
|
2004-03-25 14:37:18 +01:00
|
|
|
#else
|
|
|
|
(void)conn;
|
|
|
|
(void)sockfd;
|
|
|
|
#endif
|
|
|
|
}
|
2002-08-12 11:43:20 +02:00
|
|
|
|
2004-10-11 19:23:41 +02:00
|
|
|
#ifdef SO_NOSIGPIPE
|
|
|
|
/* The preferred method on Mac OS X (10.2 and later) to prevent SIGPIPEs when
|
|
|
|
sending data to a dead peer (instead of relying on the 4th argument to send
|
|
|
|
being MSG_NOSIGNAL). Possibly also existing and in use on other BSD
|
|
|
|
systems? */
|
|
|
|
static void nosigpipe(struct connectdata *conn,
|
|
|
|
curl_socket_t sockfd)
|
|
|
|
{
|
|
|
|
struct SessionHandle *data= conn->data;
|
|
|
|
int onoff = 1;
|
|
|
|
if(setsockopt(sockfd, SOL_SOCKET, SO_NOSIGPIPE, (void *)&onoff,
|
|
|
|
sizeof(onoff)) < 0)
|
|
|
|
infof(data, "Could not set SO_NOSIGPIPE: %s\n",
|
2007-02-16 19:19:35 +01:00
|
|
|
Curl_strerror(conn, SOCKERRNO));
|
2004-10-11 19:23:41 +02:00
|
|
|
}
|
2006-01-30 09:24:07 +01:00
|
|
|
#else
|
2011-09-03 16:06:10 +02:00
|
|
|
#define nosigpipe(x,y) Curl_nop_stmt
|
2004-10-11 19:23:41 +02:00
|
|
|
#endif
|
|
|
|
|
2011-08-05 15:42:05 +02:00
|
|
|
#ifdef USE_WINSOCK
|
2009-04-28 22:27:06 +02:00
|
|
|
/* When you run a program that uses the Windows Sockets API, you may
|
|
|
|
experience slow performance when you copy data to a TCP server.
|
|
|
|
|
|
|
|
http://support.microsoft.com/kb/823764
|
|
|
|
|
|
|
|
Work-around: Make the Socket Send Buffer Size Larger Than the Program Send
|
|
|
|
Buffer Size
|
|
|
|
|
|
|
|
*/
|
2009-05-07 22:00:44 +02:00
|
|
|
void Curl_sndbufset(curl_socket_t sockfd)
|
2009-04-28 22:27:06 +02:00
|
|
|
{
|
|
|
|
int val = CURL_MAX_WRITE_SIZE + 32;
|
2009-10-01 09:05:07 +02:00
|
|
|
int curval = 0;
|
|
|
|
int curlen = sizeof(curval);
|
|
|
|
|
2011-04-20 15:17:42 +02:00
|
|
|
if(getsockopt(sockfd, SOL_SOCKET, SO_SNDBUF, (char *)&curval, &curlen) == 0)
|
|
|
|
if(curval > val)
|
2009-10-01 09:05:07 +02:00
|
|
|
return;
|
|
|
|
|
2009-04-28 22:27:06 +02:00
|
|
|
setsockopt(sockfd, SOL_SOCKET, SO_SNDBUF, (const char *)&val, sizeof(val));
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
2010-08-10 15:28:46 +02:00
|
|
|
/*
|
|
|
|
* singleipconnect()
|
|
|
|
*
|
|
|
|
* Note that even on connect fail it returns CURLE_OK, but with 'sock' set to
|
|
|
|
* CURL_SOCKET_BAD. Other errors will however return proper errors.
|
|
|
|
*
|
|
|
|
* singleipconnect() connects to the given IP only, and it may return without
|
|
|
|
* having connected if used from the multi interface.
|
|
|
|
*/
|
|
|
|
static CURLcode
|
2004-06-29 13:20:07 +02:00
|
|
|
singleipconnect(struct connectdata *conn,
|
2006-07-21 08:50:39 +02:00
|
|
|
const Curl_addrinfo *ai,
|
2004-06-29 13:20:07 +02:00
|
|
|
long timeout_ms,
|
2010-08-10 15:28:46 +02:00
|
|
|
curl_socket_t *sockp,
|
2004-06-29 13:20:07 +02:00
|
|
|
bool *connected)
|
|
|
|
{
|
2008-10-17 05:38:36 +02:00
|
|
|
struct Curl_sockaddr_ex addr;
|
2004-06-29 13:20:07 +02:00
|
|
|
int rc;
|
2011-10-15 23:44:28 +02:00
|
|
|
int error = 0;
|
2011-02-09 15:46:41 +01:00
|
|
|
bool isconnected = FALSE;
|
2004-06-29 13:20:07 +02:00
|
|
|
struct SessionHandle *data = conn->data;
|
2005-09-16 23:30:08 +02:00
|
|
|
curl_socket_t sockfd;
|
2010-08-10 15:28:46 +02:00
|
|
|
CURLcode res = CURLE_OK;
|
2008-10-17 05:38:36 +02:00
|
|
|
|
2010-08-10 15:28:46 +02:00
|
|
|
*sockp = CURL_SOCKET_BAD;
|
2008-10-17 05:38:36 +02:00
|
|
|
*connected = FALSE; /* default is not connected */
|
2007-10-03 10:45:00 +02:00
|
|
|
|
2011-12-05 10:58:38 +01:00
|
|
|
res = Curl_socket(conn, ai, &addr, &sockfd);
|
|
|
|
if(res)
|
2012-04-19 23:31:50 +02:00
|
|
|
/* Failed to create the socket, but still return OK since we signal the
|
|
|
|
lack of socket as well. This allows the parent function to keep looping
|
|
|
|
over alternative addresses/socket families etc. */
|
|
|
|
return CURLE_OK;
|
2008-07-30 23:55:26 +02:00
|
|
|
|
2010-11-30 06:20:54 +01:00
|
|
|
/* store remote address and port used in this connection attempt */
|
|
|
|
if(!getaddressinfo((struct sockaddr*)&addr.sa_addr,
|
2010-11-30 22:14:37 +01:00
|
|
|
conn->primary_ip, &conn->primary_port)) {
|
2010-12-03 14:29:06 +01:00
|
|
|
/* malformed address or bug in inet_ntop, try next address */
|
2010-11-30 06:20:54 +01:00
|
|
|
error = ERRNO;
|
|
|
|
failf(data, "sa_addr inet_ntop() failed with errno %d: %s",
|
|
|
|
error, Curl_strerror(conn, error));
|
2011-05-16 23:46:43 +02:00
|
|
|
Curl_closesocket(conn, sockfd);
|
2010-12-03 14:29:06 +01:00
|
|
|
return CURLE_OK;
|
2008-06-06 19:33:35 +02:00
|
|
|
}
|
2010-11-30 22:14:37 +01:00
|
|
|
memcpy(conn->ip_addr_str, conn->primary_ip, MAX_IPADR_LEN);
|
2012-01-16 21:14:05 +01:00
|
|
|
infof(data, " Trying %s...\n", conn->ip_addr_str);
|
2010-11-30 06:20:54 +01:00
|
|
|
|
2010-11-30 22:14:37 +01:00
|
|
|
Curl_persistconninfo(conn);
|
|
|
|
|
2004-06-29 13:20:07 +02:00
|
|
|
if(data->set.tcp_nodelay)
|
|
|
|
tcpnodelay(conn, sockfd);
|
|
|
|
|
2004-10-11 19:23:41 +02:00
|
|
|
nosigpipe(conn, sockfd);
|
2006-01-30 09:24:07 +01:00
|
|
|
|
2009-05-07 22:00:44 +02:00
|
|
|
Curl_sndbufset(sockfd);
|
2009-04-28 22:27:06 +02:00
|
|
|
|
2012-01-24 02:28:06 +01:00
|
|
|
if(data->set.tcp_keepalive)
|
|
|
|
tcpkeepalive(data, sockfd);
|
|
|
|
|
2006-08-29 16:39:33 +02:00
|
|
|
if(data->set.fsockopt) {
|
|
|
|
/* activate callback for setting socket options */
|
|
|
|
error = data->set.fsockopt(data->set.sockopt_client,
|
|
|
|
sockfd,
|
|
|
|
CURLSOCKTYPE_IPCXN);
|
2011-02-09 15:46:41 +01:00
|
|
|
|
|
|
|
if(error == CURL_SOCKOPT_ALREADY_CONNECTED)
|
|
|
|
isconnected = TRUE;
|
|
|
|
else if(error) {
|
2011-05-16 23:46:43 +02:00
|
|
|
Curl_closesocket(conn, sockfd); /* close the socket and bail out */
|
2011-02-09 15:36:36 +01:00
|
|
|
return CURLE_ABORTED_BY_CALLBACK;
|
2006-08-29 16:39:33 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2006-01-30 09:24:07 +01:00
|
|
|
/* possibly bind the local end to an IP, interface or port */
|
2008-10-17 05:38:36 +02:00
|
|
|
res = bindlocal(conn, sockfd, addr.family);
|
2006-01-30 09:24:07 +01:00
|
|
|
if(res) {
|
2011-05-16 23:46:43 +02:00
|
|
|
Curl_closesocket(conn, sockfd); /* close socket and bail out */
|
2010-08-10 15:28:46 +02:00
|
|
|
return res;
|
2004-06-29 13:20:07 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* set socket non-blocking */
|
2009-07-09 23:47:24 +02:00
|
|
|
curlx_nonblock(sockfd, TRUE);
|
2004-06-29 13:20:07 +02:00
|
|
|
|
2005-09-02 17:11:08 +02:00
|
|
|
/* Connect TCP sockets, bind UDP */
|
2011-02-09 15:46:41 +01:00
|
|
|
if(!isconnected && (conn->socktype == SOCK_STREAM)) {
|
2008-10-17 05:38:36 +02:00
|
|
|
rc = connect(sockfd, &addr.sa_addr, addr.addrlen);
|
2011-10-15 23:44:28 +02:00
|
|
|
if(-1 == rc)
|
|
|
|
error = SOCKERRNO;
|
2010-12-23 22:19:25 +01:00
|
|
|
conn->connecttime = Curl_tvnow();
|
|
|
|
if(conn->num_addr > 1)
|
|
|
|
Curl_expire(data, conn->timeoutms_per_addr);
|
|
|
|
}
|
2005-09-16 23:30:08 +02:00
|
|
|
else
|
2005-09-02 17:11:08 +02:00
|
|
|
rc = 0;
|
2005-09-16 23:30:08 +02:00
|
|
|
|
2004-06-29 13:20:07 +02:00
|
|
|
if(-1 == rc) {
|
|
|
|
switch (error) {
|
|
|
|
case EINPROGRESS:
|
|
|
|
case EWOULDBLOCK:
|
2008-11-15 00:17:32 +01:00
|
|
|
#if defined(EAGAIN)
|
|
|
|
#if (EAGAIN) != (EWOULDBLOCK)
|
2004-06-29 13:20:07 +02:00
|
|
|
/* On some platforms EAGAIN and EWOULDBLOCK are the
|
|
|
|
* same value, and on others they are different, hence
|
|
|
|
* the odd #if
|
|
|
|
*/
|
|
|
|
case EAGAIN:
|
2008-11-15 00:17:32 +01:00
|
|
|
#endif
|
2004-06-29 13:20:07 +02:00
|
|
|
#endif
|
2010-01-11 22:38:13 +01:00
|
|
|
rc = waitconnect(conn, sockfd, timeout_ms);
|
2010-08-10 15:28:46 +02:00
|
|
|
if(WAITCONN_ABORTED == rc) {
|
2011-05-16 23:46:43 +02:00
|
|
|
Curl_closesocket(conn, sockfd);
|
2010-08-10 15:28:46 +02:00
|
|
|
return CURLE_ABORTED_BY_CALLBACK;
|
|
|
|
}
|
2004-06-29 13:20:07 +02:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
/* unknown error, fallthrough and try another address! */
|
|
|
|
failf(data, "Failed to connect to %s: %s",
|
2010-12-03 14:29:06 +01:00
|
|
|
conn->ip_addr_str, Curl_strerror(conn,error));
|
2004-12-13 18:52:55 +01:00
|
|
|
data->state.os_errno = error;
|
2004-06-29 13:20:07 +02:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* The 'WAITCONN_TIMEOUT == rc' comes from the waitconnect(), and not from
|
|
|
|
connect(). We can be sure of this since connect() cannot return 1. */
|
|
|
|
if((WAITCONN_TIMEOUT == rc) &&
|
|
|
|
(data->state.used_interface == Curl_if_multi)) {
|
|
|
|
/* Timeout when running the multi interface */
|
2010-08-10 15:28:46 +02:00
|
|
|
*sockp = sockfd;
|
|
|
|
return CURLE_OK;
|
2004-06-29 13:20:07 +02:00
|
|
|
}
|
|
|
|
|
2011-02-09 15:46:41 +01:00
|
|
|
if(!isconnected)
|
|
|
|
isconnected = verifyconnect(sockfd, &error);
|
2004-06-29 13:20:07 +02:00
|
|
|
|
2005-12-13 19:54:31 +01:00
|
|
|
if(!rc && isconnected) {
|
2004-06-29 13:20:07 +02:00
|
|
|
/* we are connected, awesome! */
|
|
|
|
*connected = TRUE; /* this is a true connect */
|
|
|
|
infof(data, "connected\n");
|
2011-10-17 22:01:09 +02:00
|
|
|
#ifdef ENABLE_IPV6
|
|
|
|
conn->bits.ipv6 = (addr.family == AF_INET6)?TRUE:FALSE;
|
|
|
|
#endif
|
|
|
|
|
2010-06-07 16:53:31 +02:00
|
|
|
Curl_updateconninfo(conn, sockfd);
|
2010-08-10 15:28:46 +02:00
|
|
|
*sockp = sockfd;
|
|
|
|
return CURLE_OK;
|
2004-06-29 13:20:07 +02:00
|
|
|
}
|
|
|
|
else if(WAITCONN_TIMEOUT == rc)
|
|
|
|
infof(data, "Timeout\n");
|
2004-09-30 23:01:23 +02:00
|
|
|
else {
|
|
|
|
data->state.os_errno = error;
|
2004-06-29 13:20:07 +02:00
|
|
|
infof(data, "%s\n", Curl_strerror(conn, error));
|
2004-09-30 23:01:23 +02:00
|
|
|
}
|
2004-06-29 13:20:07 +02:00
|
|
|
|
|
|
|
/* connect failed or timed out */
|
2011-05-16 23:46:43 +02:00
|
|
|
Curl_closesocket(conn, sockfd);
|
2004-06-29 13:20:07 +02:00
|
|
|
|
2010-08-10 15:28:46 +02:00
|
|
|
return CURLE_OK;
|
2004-06-29 13:20:07 +02:00
|
|
|
}
|
|
|
|
|
2001-10-01 10:59:17 +02:00
|
|
|
/*
|
|
|
|
* TCP connect to the given host with timeout, proxy or remote doesn't matter.
|
|
|
|
* There might be more than one IP address to try out. Fill in the passed
|
|
|
|
* pointer with the connected socket.
|
|
|
|
*/
|
|
|
|
|
2001-10-02 11:40:06 +02:00
|
|
|
CURLcode Curl_connecthost(struct connectdata *conn, /* context */
|
2007-10-03 10:45:00 +02:00
|
|
|
const struct Curl_dns_entry *remotehost,
|
2004-03-09 23:52:50 +01:00
|
|
|
curl_socket_t *sockconn, /* the connected socket */
|
2004-06-24 09:43:48 +02:00
|
|
|
Curl_addrinfo **addr, /* the one we used */
|
2002-08-12 11:43:20 +02:00
|
|
|
bool *connected) /* really connected? */
|
2001-10-01 10:59:17 +02:00
|
|
|
{
|
|
|
|
struct SessionHandle *data = conn->data;
|
2004-06-10 13:06:21 +02:00
|
|
|
curl_socket_t sockfd = CURL_SOCKET_BAD;
|
2004-06-24 09:43:48 +02:00
|
|
|
Curl_addrinfo *ai;
|
|
|
|
Curl_addrinfo *curr_addr;
|
2001-10-01 10:59:17 +02:00
|
|
|
|
2001-10-01 13:25:27 +02:00
|
|
|
struct timeval after;
|
|
|
|
struct timeval before = Curl_tvnow();
|
|
|
|
|
2001-10-02 11:40:06 +02:00
|
|
|
/*************************************************************
|
|
|
|
* Figure out what maximum time we have left
|
|
|
|
*************************************************************/
|
2007-04-22 20:17:46 +02:00
|
|
|
long timeout_ms;
|
2002-08-12 14:01:57 +02:00
|
|
|
|
2008-08-26 23:28:57 +02:00
|
|
|
DEBUGASSERT(sockconn);
|
2002-08-12 14:01:57 +02:00
|
|
|
*connected = FALSE; /* default to not connected */
|
|
|
|
|
2008-02-07 23:25:04 +01:00
|
|
|
/* get the timeout left */
|
2011-01-04 23:07:58 +01:00
|
|
|
timeout_ms = Curl_timeleft(data, &before, TRUE);
|
2007-04-22 20:17:46 +02:00
|
|
|
|
2008-02-07 23:25:04 +01:00
|
|
|
if(timeout_ms < 0) {
|
|
|
|
/* a precaution, no need to continue if time already is up */
|
|
|
|
failf(data, "Connection time-out");
|
|
|
|
return CURLE_OPERATION_TIMEDOUT;
|
2001-10-02 11:40:06 +02:00
|
|
|
}
|
|
|
|
|
2010-12-23 22:19:25 +01:00
|
|
|
conn->num_addr = Curl_num_addresses(remotehost->addr);
|
2004-06-10 13:06:21 +02:00
|
|
|
|
2004-06-24 09:43:48 +02:00
|
|
|
ai = remotehost->addr;
|
|
|
|
|
2004-06-10 13:06:21 +02:00
|
|
|
/* Below is the loop that attempts to connect to all IP-addresses we
|
2004-06-29 13:20:07 +02:00
|
|
|
* know for the given host. One by one until one IP succeeds.
|
2004-06-10 13:06:21 +02:00
|
|
|
*/
|
2004-06-24 09:43:48 +02:00
|
|
|
|
2001-10-01 10:59:17 +02:00
|
|
|
/*
|
2004-06-29 13:20:07 +02:00
|
|
|
* Connecting with a Curl_addrinfo chain
|
2001-10-01 10:59:17 +02:00
|
|
|
*/
|
2012-01-23 10:44:53 +01:00
|
|
|
for(curr_addr = ai; curr_addr; curr_addr = curr_addr->ai_next) {
|
2012-01-23 10:45:24 +01:00
|
|
|
CURLcode res;
|
2004-06-24 09:43:48 +02:00
|
|
|
|
2012-01-23 10:45:24 +01:00
|
|
|
/* Max time for the next address */
|
|
|
|
conn->timeoutms_per_addr = curr_addr->ai_next == NULL ?
|
|
|
|
timeout_ms : timeout_ms / 2;
|
2010-08-10 15:28:46 +02:00
|
|
|
|
2012-01-23 10:45:24 +01:00
|
|
|
/* start connecting to the IP curr_addr points to */
|
|
|
|
res = singleipconnect(conn, curr_addr,
|
|
|
|
/* don't hang when doing multi */
|
|
|
|
(data->state.used_interface == Curl_if_multi)?0:
|
|
|
|
conn->timeoutms_per_addr, &sockfd, connected);
|
2010-08-10 15:28:46 +02:00
|
|
|
if(res)
|
|
|
|
return res;
|
2003-10-08 15:32:43 +02:00
|
|
|
|
2004-06-29 13:20:07 +02:00
|
|
|
if(sockfd != CURL_SOCKET_BAD)
|
2004-06-10 13:06:21 +02:00
|
|
|
break;
|
2003-11-13 14:28:40 +01:00
|
|
|
|
|
|
|
/* get a new timeout for next attempt */
|
|
|
|
after = Curl_tvnow();
|
|
|
|
timeout_ms -= Curl_tvdiff(after, before);
|
|
|
|
if(timeout_ms < 0) {
|
|
|
|
failf(data, "connect() timed out!");
|
2007-08-30 22:34:57 +02:00
|
|
|
return CURLE_OPERATION_TIMEDOUT;
|
2001-10-01 13:25:27 +02:00
|
|
|
}
|
2003-11-13 14:28:40 +01:00
|
|
|
before = after;
|
2004-06-10 13:06:21 +02:00
|
|
|
} /* end of connect-to-each-address loop */
|
|
|
|
|
2008-08-26 23:28:57 +02:00
|
|
|
*sockconn = sockfd; /* the socket descriptor we've connected */
|
|
|
|
|
2007-11-05 10:45:09 +01:00
|
|
|
if(sockfd == CURL_SOCKET_BAD) {
|
2001-10-01 10:59:17 +02:00
|
|
|
/* no good connect was made */
|
2004-09-19 16:27:56 +02:00
|
|
|
failf(data, "couldn't connect to host");
|
2001-10-01 10:59:17 +02:00
|
|
|
return CURLE_COULDNT_CONNECT;
|
|
|
|
}
|
2002-01-07 19:38:01 +01:00
|
|
|
|
|
|
|
/* leave the socket in non-blocking mode */
|
2001-10-01 10:59:17 +02:00
|
|
|
|
2003-11-13 14:28:40 +01:00
|
|
|
/* store the address we use */
|
2004-06-10 13:06:21 +02:00
|
|
|
if(addr)
|
|
|
|
*addr = curr_addr;
|
2001-10-01 10:59:17 +02:00
|
|
|
|
2004-10-19 17:30:08 +02:00
|
|
|
data->info.numconnects++; /* to track the number of connections made */
|
|
|
|
|
2001-10-01 10:59:17 +02:00
|
|
|
return CURLE_OK;
|
|
|
|
}
|
2008-05-12 23:43:24 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Used to extract socket and connectdata struct for the most recent
|
|
|
|
* transfer on the given SessionHandle.
|
|
|
|
*
|
2010-09-06 00:02:54 +02:00
|
|
|
* The returned socket will be CURL_SOCKET_BAD in case of failure!
|
2008-05-12 23:43:24 +02:00
|
|
|
*/
|
2010-09-06 00:02:54 +02:00
|
|
|
curl_socket_t Curl_getconnectinfo(struct SessionHandle *data,
|
|
|
|
struct connectdata **connp)
|
2008-05-12 23:43:24 +02:00
|
|
|
{
|
2010-09-06 00:02:54 +02:00
|
|
|
curl_socket_t sockfd;
|
2011-04-11 13:17:55 +02:00
|
|
|
|
|
|
|
DEBUGASSERT(data);
|
|
|
|
|
2008-05-12 23:43:24 +02:00
|
|
|
if((data->state.lastconnect != -1) &&
|
|
|
|
(data->state.connc->connects[data->state.lastconnect] != NULL)) {
|
|
|
|
struct connectdata *c =
|
|
|
|
data->state.connc->connects[data->state.lastconnect];
|
|
|
|
if(connp)
|
|
|
|
/* only store this if the caller cares for it */
|
|
|
|
*connp = c;
|
2010-09-06 00:02:54 +02:00
|
|
|
sockfd = c->sock[FIRSTSOCKET];
|
2008-05-12 23:43:24 +02:00
|
|
|
/* we have a socket connected, let's determine if the server shut down */
|
|
|
|
/* determine if ssl */
|
|
|
|
if(c->ssl[FIRSTSOCKET].use) {
|
|
|
|
/* use the SSL context */
|
|
|
|
if(!Curl_ssl_check_cxn(c))
|
2010-09-06 00:02:54 +02:00
|
|
|
return CURL_SOCKET_BAD; /* FIN received */
|
2008-05-12 23:43:24 +02:00
|
|
|
}
|
|
|
|
/* Minix 3.1 doesn't support any flags on recv; just assume socket is OK */
|
|
|
|
#ifdef MSG_PEEK
|
|
|
|
else {
|
|
|
|
/* use the socket */
|
|
|
|
char buf;
|
|
|
|
if(recv((RECV_TYPE_ARG1)c->sock[FIRSTSOCKET], (RECV_TYPE_ARG2)&buf,
|
|
|
|
(RECV_TYPE_ARG3)1, (RECV_TYPE_ARG4)MSG_PEEK) == 0) {
|
2010-09-06 00:02:54 +02:00
|
|
|
return CURL_SOCKET_BAD; /* FIN received */
|
2008-05-12 23:43:24 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
else
|
2010-09-06 00:02:54 +02:00
|
|
|
return CURL_SOCKET_BAD;
|
2008-05-12 23:43:24 +02:00
|
|
|
|
2010-09-06 00:02:54 +02:00
|
|
|
return sockfd;
|
2008-05-12 23:43:24 +02:00
|
|
|
}
|
2011-05-16 23:46:43 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Close a socket.
|
|
|
|
*
|
|
|
|
* 'conn' can be NULL, beware!
|
|
|
|
*/
|
|
|
|
int Curl_closesocket(struct connectdata *conn,
|
|
|
|
curl_socket_t sock)
|
|
|
|
{
|
2011-12-05 12:34:27 +01:00
|
|
|
if(conn && conn->fclosesocket) {
|
2011-12-07 16:00:20 +01:00
|
|
|
if((sock == conn->sock[SECONDARYSOCKET]) &&
|
|
|
|
conn->sock_accepted[SECONDARYSOCKET])
|
2011-12-05 12:34:27 +01:00
|
|
|
/* if this socket matches the second socket, and that was created with
|
2011-12-07 16:00:20 +01:00
|
|
|
accept, then we MUST NOT call the callback but clear the accepted
|
|
|
|
status */
|
|
|
|
conn->sock_accepted[SECONDARYSOCKET] = FALSE;
|
|
|
|
else
|
2011-12-05 12:34:27 +01:00
|
|
|
return conn->fclosesocket(conn->closesocket_client, sock);
|
|
|
|
}
|
|
|
|
return sclose(sock);
|
2011-05-16 23:46:43 +02:00
|
|
|
}
|
2011-12-05 10:58:38 +01:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Create a socket based on info from 'conn' and 'ai'.
|
|
|
|
*
|
2011-12-05 11:42:10 +01:00
|
|
|
* 'addr' should be a pointer to the correct struct to get data back, or NULL.
|
|
|
|
* 'sockfd' must be a pointer to a socket descriptor.
|
|
|
|
*
|
|
|
|
* If the open socket callback is set, used that!
|
2011-12-05 10:58:38 +01:00
|
|
|
*
|
|
|
|
*/
|
|
|
|
CURLcode Curl_socket(struct connectdata *conn,
|
|
|
|
const Curl_addrinfo *ai,
|
|
|
|
struct Curl_sockaddr_ex *addr,
|
|
|
|
curl_socket_t *sockfd)
|
|
|
|
{
|
|
|
|
struct SessionHandle *data = conn->data;
|
2011-12-05 11:42:10 +01:00
|
|
|
struct Curl_sockaddr_ex dummy;
|
|
|
|
|
|
|
|
if(!addr)
|
|
|
|
/* if the caller doesn't want info back, use a local temp copy */
|
|
|
|
addr = &dummy;
|
2011-12-05 10:58:38 +01:00
|
|
|
|
|
|
|
/*
|
|
|
|
* The Curl_sockaddr_ex structure is basically libcurl's external API
|
|
|
|
* curl_sockaddr structure with enough space available to directly hold
|
|
|
|
* any protocol-specific address structures. The variable declared here
|
|
|
|
* will be used to pass / receive data to/from the fopensocket callback
|
|
|
|
* if this has been set, before that, it is initialized from parameters.
|
|
|
|
*/
|
|
|
|
|
|
|
|
addr->family = ai->ai_family;
|
|
|
|
addr->socktype = conn->socktype;
|
|
|
|
addr->protocol = conn->socktype==SOCK_DGRAM?IPPROTO_UDP:ai->ai_protocol;
|
|
|
|
addr->addrlen = ai->ai_addrlen;
|
|
|
|
|
|
|
|
if(addr->addrlen > sizeof(struct Curl_sockaddr_storage))
|
|
|
|
addr->addrlen = sizeof(struct Curl_sockaddr_storage);
|
|
|
|
memcpy(&addr->sa_addr, ai->ai_addr, addr->addrlen);
|
|
|
|
|
|
|
|
if(data->set.fopensocket)
|
|
|
|
/*
|
|
|
|
* If the opensocket callback is set, all the destination address
|
|
|
|
* information is passed to the callback. Depending on this information the
|
|
|
|
* callback may opt to abort the connection, this is indicated returning
|
|
|
|
* CURL_SOCKET_BAD; otherwise it will return a not-connected socket. When
|
|
|
|
* the callback returns a valid socket the destination address information
|
|
|
|
* might have been changed and this 'new' address will actually be used
|
|
|
|
* here to connect.
|
|
|
|
*/
|
|
|
|
*sockfd = data->set.fopensocket(data->set.opensocket_client,
|
|
|
|
CURLSOCKTYPE_IPCXN,
|
|
|
|
(struct curl_sockaddr *)addr);
|
|
|
|
else
|
|
|
|
/* opensocket callback not set, so simply create the socket now */
|
|
|
|
*sockfd = socket(addr->family, addr->socktype, addr->protocol);
|
|
|
|
|
|
|
|
if(*sockfd == CURL_SOCKET_BAD)
|
|
|
|
/* no socket, no connection */
|
2012-04-03 00:45:25 +02:00
|
|
|
return CURLE_COULDNT_CONNECT;
|
2011-12-05 10:58:38 +01:00
|
|
|
|
|
|
|
#if defined(ENABLE_IPV6) && defined(HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID)
|
2011-12-05 11:42:10 +01:00
|
|
|
if(conn->scope && (addr->family == AF_INET6)) {
|
|
|
|
struct sockaddr_in6 * const sa6 = (void *)&addr->sa_addr;
|
2011-12-05 10:58:38 +01:00
|
|
|
sa6->sin6_scope_id = conn->scope;
|
2011-12-05 11:42:10 +01:00
|
|
|
}
|
2011-12-05 10:58:38 +01:00
|
|
|
#endif
|
|
|
|
|
|
|
|
return CURLE_OK;
|
|
|
|
|
|
|
|
}
|