582 lines
15 KiB
C
582 lines
15 KiB
C
|
/*****************************************************************************
|
||
|
|
* _ _ ____ _
|
||
|
|
* Project ___| | | | _ \| |
|
||
|
|
* / __| | | | |_) | |
|
||
|
|
* | (__| |_| | _ <| |___
|
||
|
|
* \___|\___/|_| \_\_____|
|
||
|
|
*
|
||
|
|
* Copyright (C) 2001, Daniel Stenberg, <daniel@haxx.se>, et al.
|
||
|
|
*
|
||
|
|
* In order to be useful for every potential user, curl and libcurl are
|
||
|
|
* dual-licensed under the MPL and the MIT/X-derivate licenses.
|
||
|
|
*
|
||
|
|
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
||
|
|
* copies of the Software, and permit persons to whom the Software is
|
||
|
|
* furnished to do so, under the terms of the MPL or the MIT/X-derivate
|
||
|
|
* licenses. You may pick one of these licenses.
|
||
|
|
*
|
||
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
||
|
|
* KIND, either express or implied.
|
||
|
|
*
|
||
|
|
* $Id$
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
#include "setup.h"
|
||
|
|
|
||
|
|
#ifndef WIN32
|
||
|
|
/* headers for non-win32 */
|
||
|
|
#include <sys/time.h>
|
||
|
|
#include <sys/socket.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <sys/ioctl.h>
|
||
|
|
#ifdef HAVE_UNISTD_H
|
||
|
|
#include <unistd.h>
|
||
|
|
#endif
|
||
|
|
#ifdef HAVE_NETDB_H
|
||
|
|
#include <netdb.h>
|
||
|
|
#endif
|
||
|
|
#ifdef HAVE_FCNTL_H
|
||
|
|
#include <fcntl.h>
|
||
|
|
#endif
|
||
|
|
#ifdef HAVE_NETINET_IN_H
|
||
|
|
#include <netinet/in.h>
|
||
|
|
#endif
|
||
|
|
#ifdef HAVE_ARPA_INET_H
|
||
|
|
#include <arpa/inet.h>
|
||
|
|
#endif
|
||
|
|
#ifdef HAVE_STDLIB_H
|
||
|
|
#include <stdlib.h> /* required for free() prototype, without it, this crashes
|
||
|
|
on macos 68K */
|
||
|
|
#endif
|
||
|
|
#ifdef VMS
|
||
|
|
#include <in.h>
|
||
|
|
#include <inet.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#ifndef TRUE
|
||
|
|
#define TRUE 1
|
||
|
|
#define FALSE 0
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef WIN32
|
||
|
|
#define HAVE_IOCTLSOCKET
|
||
|
|
#include <windows.h>
|
||
|
|
#include <winsock.h>
|
||
|
|
#define EINPROGRESS WSAEINPROGRESS
|
||
|
|
#define EWOULDBLOCK WSAEWOULDBLOCK
|
||
|
|
#define EISCONN WSAEISCONN
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "urldata.h"
|
||
|
|
#include "sendf.h"
|
||
|
|
#include "if2ip.h"
|
||
|
|
|
||
|
|
/* The last #include file should be: */
|
||
|
|
#ifdef MALLOCDEBUG
|
||
|
|
#include "memdebug.h"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static
|
||
|
|
int geterrno(void)
|
||
|
|
{
|
||
|
|
#ifdef WIN32
|
||
|
|
return (int)GetLastError();
|
||
|
|
#else
|
||
|
|
return errno;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
/*************************************************************************
|
||
|
|
* Curl_nonblock
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* Set the socket to either blocking or non-blocking mode.
|
||
|
|
*/
|
||
|
|
|
||
|
|
int Curl_nonblock(int socket, /* operate on this */
|
||
|
|
int nonblock /* TRUE or FALSE */)
|
||
|
|
{
|
||
|
|
#undef SETBLOCK
|
||
|
|
#ifdef HAVE_O_NONBLOCK
|
||
|
|
int flags;
|
||
|
|
|
||
|
|
flags = fcntl(socket, F_GETFL, 0);
|
||
|
|
if (TRUE == nonblock)
|
||
|
|
return fcntl(socket, F_SETFL, flags | O_NONBLOCK);
|
||
|
|
else
|
||
|
|
return fcntl(socket, F_SETFL, flags & (~O_NONBLOCK));
|
||
|
|
#define SETBLOCK 1
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef HAVE_FIONBIO
|
||
|
|
int flags;
|
||
|
|
|
||
|
|
flags = nonblock;
|
||
|
|
return ioctl(socket, FIONBIO, &flags);
|
||
|
|
#define SETBLOCK 2
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef HAVE_IOCTLSOCKET
|
||
|
|
int flags;
|
||
|
|
flags = nonblock;
|
||
|
|
return ioctlsocket(socket, FIONBIO, &flags);
|
||
|
|
#define SETBLOCK 3
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef HAVE_IOCTLSOCKET_CASE
|
||
|
|
return IoctlSocket(socket, FIONBIO, (long)nonblock);
|
||
|
|
#define SETBLOCK 4
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef HAVE_DISABLED_NONBLOCKING
|
||
|
|
return 0; /* returns success */
|
||
|
|
#define SETBLOCK 5
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef SETBLOCK
|
||
|
|
#error "no non-blocking method was found/used/set"
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Return 0 on fine connect, -1 on error and 1 on timeout.
|
||
|
|
*/
|
||
|
|
static
|
||
|
|
int waitconnect(int sockfd, /* socket */
|
||
|
|
int timeout_msec)
|
||
|
|
{
|
||
|
|
fd_set fd;
|
||
|
|
fd_set errfd;
|
||
|
|
struct timeval interval;
|
||
|
|
int rc;
|
||
|
|
|
||
|
|
/* now select() until we get connect or timeout */
|
||
|
|
FD_ZERO(&fd);
|
||
|
|
FD_SET(sockfd, &fd);
|
||
|
|
|
||
|
|
FD_ZERO(&errfd);
|
||
|
|
FD_SET(sockfd, &errfd);
|
||
|
|
|
||
|
|
interval.tv_sec = timeout_msec/1000;
|
||
|
|
timeout_msec -= interval.tv_sec*1000;
|
||
|
|
|
||
|
|
interval.tv_usec = timeout_msec*1000;
|
||
|
|
|
||
|
|
rc = select(sockfd+1, NULL, &fd, &errfd, &interval);
|
||
|
|
if(-1 == rc)
|
||
|
|
/* error, no connect here, try next */
|
||
|
|
return -1;
|
||
|
|
|
||
|
|
else if(0 == rc)
|
||
|
|
/* timeout, no connect today */
|
||
|
|
return 1;
|
||
|
|
|
||
|
|
if(FD_ISSET(sockfd, &errfd)) {
|
||
|
|
/* error condition caught */
|
||
|
|
return 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* we have a connect! */
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifndef ENABLE_IPV6
|
||
|
|
static CURLcode bindlocal(struct connectdata *conn,
|
||
|
|
int sockfd)
|
||
|
|
{
|
||
|
|
#if !defined(WIN32)||defined(__CYGWIN32__)
|
||
|
|
/* We don't generally like checking for OS-versions, we should make this
|
||
|
|
HAVE_XXXX based, although at the moment I don't have a decent test for
|
||
|
|
this! */
|
||
|
|
|
||
|
|
#ifdef HAVE_INET_NTOA
|
||
|
|
|
||
|
|
#ifndef INADDR_NONE
|
||
|
|
#define INADDR_NONE (in_addr_t) ~0
|
||
|
|
#endif
|
||
|
|
|
||
|
|
struct SessionHandle *data = conn->data;
|
||
|
|
|
||
|
|
/*************************************************************
|
||
|
|
* Select device to bind socket to
|
||
|
|
*************************************************************/
|
||
|
|
if (strlen(data->set.device)<255) {
|
||
|
|
struct sockaddr_in sa;
|
||
|
|
struct hostent *h=NULL;
|
||
|
|
char *hostdataptr=NULL;
|
||
|
|
size_t size;
|
||
|
|
char myhost[256] = "";
|
||
|
|
in_addr_t in;
|
||
|
|
|
||
|
|
if(Curl_if2ip(data->set.device, myhost, sizeof(myhost))) {
|
||
|
|
h = Curl_resolv(data, myhost, 0, &hostdataptr);
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if(strlen(data->set.device)>1) {
|
||
|
|
h = Curl_resolv(data, data->set.device, 0, &hostdataptr);
|
||
|
|
}
|
||
|
|
if(h) {
|
||
|
|
/* we know data->set.device is shorter than the myhost array */
|
||
|
|
strcpy(myhost, data->set.device);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if(! *myhost) {
|
||
|
|
/* need to fix this
|
||
|
|
h=Curl_gethost(data,
|
||
|
|
getmyhost(*myhost,sizeof(myhost)),
|
||
|
|
hostent_buf,
|
||
|
|
sizeof(hostent_buf));
|
||
|
|
*/
|
||
|
|
return CURLE_HTTP_PORT_FAILED;
|
||
|
|
}
|
||
|
|
|
||
|
|
infof(data, "We bind local end to %s\n", myhost);
|
||
|
|
|
||
|
|
in=inet_addr(myhost);
|
||
|
|
if (INADDR_NONE != in) {
|
||
|
|
|
||
|
|
if ( h ) {
|
||
|
|
memset((char *)&sa, 0, sizeof(sa));
|
||
|
|
memcpy((char *)&sa.sin_addr,
|
||
|
|
h->h_addr,
|
||
|
|
h->h_length);
|
||
|
|
sa.sin_family = AF_INET;
|
||
|
|
sa.sin_addr.s_addr = in;
|
||
|
|
sa.sin_port = 0; /* get any port */
|
||
|
|
|
||
|
|
if( bind(sockfd, (struct sockaddr *)&sa, sizeof(sa)) >= 0) {
|
||
|
|
/* we succeeded to bind */
|
||
|
|
struct sockaddr_in add;
|
||
|
|
|
||
|
|
size = sizeof(add);
|
||
|
|
if(getsockname(sockfd, (struct sockaddr *) &add,
|
||
|
|
(socklen_t *)&size)<0) {
|
||
|
|
failf(data, "getsockname() failed");
|
||
|
|
return CURLE_HTTP_PORT_FAILED;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
switch(errno) {
|
||
|
|
case EBADF:
|
||
|
|
failf(data, "Invalid descriptor: %d", errno);
|
||
|
|
break;
|
||
|
|
case EINVAL:
|
||
|
|
failf(data, "Invalid request: %d", errno);
|
||
|
|
break;
|
||
|
|
case EACCES:
|
||
|
|
failf(data, "Address is protected, user not superuser: %d", errno);
|
||
|
|
break;
|
||
|
|
case ENOTSOCK:
|
||
|
|
failf(data,
|
||
|
|
"Argument is a descriptor for a file, not a socket: %d",
|
||
|
|
errno);
|
||
|
|
break;
|
||
|
|
case EFAULT:
|
||
|
|
failf(data, "Inaccessable memory error: %d", errno);
|
||
|
|
break;
|
||
|
|
case ENAMETOOLONG:
|
||
|
|
failf(data, "Address too long: %d", errno);
|
||
|
|
break;
|
||
|
|
case ENOMEM:
|
||
|
|
failf(data, "Insufficient kernel memory was available: %d", errno);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
failf(data, "errno %d", errno);
|
||
|
|
break;
|
||
|
|
} /* end of switch(errno) */
|
||
|
|
|
||
|
|
return CURLE_HTTP_PORT_FAILED;
|
||
|
|
} /* end of else */
|
||
|
|
|
||
|
|
} /* end of if h */
|
||
|
|
else {
|
||
|
|
failf(data,"could't find my own IP address (%s)", myhost);
|
||
|
|
return CURLE_HTTP_PORT_FAILED;
|
||
|
|
}
|
||
|
|
} /* end of inet_addr */
|
||
|
|
|
||
|
|
else {
|
||
|
|
failf(data, "could't find my own IP address (%s)", myhost);
|
||
|
|
return CURLE_HTTP_PORT_FAILED;
|
||
|
|
}
|
||
|
|
|
||
|
|
return CURLE_OK;
|
||
|
|
|
||
|
|
} /* end of device selection support */
|
||
|
|
#endif /* end of HAVE_INET_NTOA */
|
||
|
|
#endif /* end of not WIN32 */
|
||
|
|
|
||
|
|
return CURLE_HTTP_PORT_FAILED;
|
||
|
|
}
|
||
|
|
#endif /* end of ipv4-specific section */
|
||
|
|
|
||
|
|
static
|
||
|
|
int socketerror(int sockfd)
|
||
|
|
{
|
||
|
|
int err = 0;
|
||
|
|
socklen_t errSize = sizeof(err);
|
||
|
|
|
||
|
|
if( -1 == getsockopt(sockfd, SOL_SOCKET, SO_ERROR,
|
||
|
|
(void *)&err, &errSize))
|
||
|
|
err = geterrno();
|
||
|
|
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
CURLcode Curl_connecthost(struct connectdata *conn, /* context */
|
||
|
|
Curl_addrinfo *remotehost, /* use one in here */
|
||
|
|
int port, /* connect to this */
|
||
|
|
int *sockconn, /* the connected socket */
|
||
|
|
Curl_ipconnect **addr) /* the one we used */
|
||
|
|
{
|
||
|
|
struct SessionHandle *data = conn->data;
|
||
|
|
int rc;
|
||
|
|
int sockfd=-1;
|
||
|
|
int aliasindex=0;
|
||
|
|
|
||
|
|
struct timeval after;
|
||
|
|
struct timeval before = Curl_tvnow();
|
||
|
|
|
||
|
|
/*************************************************************
|
||
|
|
* Figure out what maximum time we have left
|
||
|
|
*************************************************************/
|
||
|
|
long timeout_ms=300000; /* milliseconds, default to five minutes */
|
||
|
|
if(data->set.timeout || data->set.connecttimeout) {
|
||
|
|
double has_passed;
|
||
|
|
|
||
|
|
/* Evaluate in milliseconds how much time that has passed */
|
||
|
|
has_passed = Curl_tvdiff(Curl_tvnow(), data->progress.start);
|
||
|
|
|
||
|
|
#ifndef min
|
||
|
|
#define min(a, b) ((a) < (b) ? (a) : (b))
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* get the most strict timeout of the ones converted to milliseconds */
|
||
|
|
if(data->set.timeout && data->set.connecttimeout) {
|
||
|
|
if (data->set.timeout < data->set.connecttimeout)
|
||
|
|
timeout_ms = data->set.timeout*1000;
|
||
|
|
else
|
||
|
|
timeout_ms = data->set.connecttimeout*1000;
|
||
|
|
}
|
||
|
|
else if(data->set.timeout)
|
||
|
|
timeout_ms = data->set.timeout*1000;
|
||
|
|
else
|
||
|
|
timeout_ms = data->set.connecttimeout*1000;
|
||
|
|
|
||
|
|
/* subtract the passed time */
|
||
|
|
timeout_ms -= (long)has_passed;
|
||
|
|
|
||
|
|
if(timeout_ms < 0) {
|
||
|
|
/* a precaution, no need to continue if time already is up */
|
||
|
|
failf(data, "Connection time-out");
|
||
|
|
return CURLE_OPERATION_TIMEOUTED;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef ENABLE_IPV6
|
||
|
|
/*
|
||
|
|
* Connecting with IPv6 support is so much easier and cleanly done
|
||
|
|
*/
|
||
|
|
{
|
||
|
|
struct addrinfo *ai;
|
||
|
|
port =0; /* prevent compiler warning */
|
||
|
|
|
||
|
|
for (ai = remotehost; ai; ai = ai->ai_next, aliasindex++) {
|
||
|
|
sockfd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
|
||
|
|
if (sockfd < 0)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
/* set socket non-blocking */
|
||
|
|
Curl_nonblock(sockfd, TRUE);
|
||
|
|
|
||
|
|
rc = connect(sockfd, ai->ai_addr, ai->ai_addrlen);
|
||
|
|
|
||
|
|
if(-1 == rc) {
|
||
|
|
int error=geterrno();
|
||
|
|
|
||
|
|
switch (error) {
|
||
|
|
case EINPROGRESS:
|
||
|
|
case EWOULDBLOCK:
|
||
|
|
#if defined(EAGAIN) && EAGAIN != EWOULDBLOCK
|
||
|
|
/* On some platforms EAGAIN and EWOULDBLOCK are the
|
||
|
|
* same value, and on others they are different, hence
|
||
|
|
* the odd #if
|
||
|
|
*/
|
||
|
|
case EAGAIN:
|
||
|
|
#endif
|
||
|
|
case EINTR:
|
||
|
|
|
||
|
|
/* asynchronous connect, wait for connect or timeout */
|
||
|
|
rc = waitconnect(sockfd, timeout_ms);
|
||
|
|
break;
|
||
|
|
case ECONNREFUSED: /* no one listening */
|
||
|
|
default:
|
||
|
|
/* unknown error, fallthrough and try another address! */
|
||
|
|
failf(data, "Failed to connect");
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if(0 == rc) {
|
||
|
|
/* we might be connected, if the socket says it is OK! Ask it! */
|
||
|
|
int err;
|
||
|
|
|
||
|
|
err = socketerror(sockfd);
|
||
|
|
if ((0 == err) || (EISCONN == err)) {
|
||
|
|
/* we are connected, awesome! */
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
/* we are _not_ connected, it was a false alert, continue please */
|
||
|
|
}
|
||
|
|
|
||
|
|
/* connect failed or timed out */
|
||
|
|
sclose(sockfd);
|
||
|
|
sockfd = -1;
|
||
|
|
|
||
|
|
/* 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!");
|
||
|
|
return CURLE_OPERATION_TIMEOUTED;
|
||
|
|
}
|
||
|
|
before = after;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
if (sockfd < 0) {
|
||
|
|
failf(data, "connect() failed");
|
||
|
|
return CURLE_COULDNT_CONNECT;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* leave the socket in non-blocking mode */
|
||
|
|
|
||
|
|
if(addr)
|
||
|
|
*addr = ai; /* the address we ended up connected to */
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
/*
|
||
|
|
* Connecting with IPv4-only support
|
||
|
|
*/
|
||
|
|
if(!remotehost->h_addr_list[0]) {
|
||
|
|
/* If there is no addresses in the address list, then we return
|
||
|
|
error right away */
|
||
|
|
failf(data, "no address available");
|
||
|
|
return CURLE_COULDNT_CONNECT;
|
||
|
|
}
|
||
|
|
/* create an IPv4 TCP socket */
|
||
|
|
sockfd = socket(AF_INET, SOCK_STREAM, 0);
|
||
|
|
if(-1 == sockfd) {
|
||
|
|
failf(data, "couldn't create socket");
|
||
|
|
return CURLE_COULDNT_CONNECT; /* big time error */
|
||
|
|
}
|
||
|
|
|
||
|
|
if(conn->data->set.device) {
|
||
|
|
/* user selected to bind the outgoing socket to a specified "device"
|
||
|
|
before doing connect */
|
||
|
|
CURLcode res = bindlocal(conn, sockfd);
|
||
|
|
if(res)
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Convert socket to non-blocking type */
|
||
|
|
Curl_nonblock(sockfd, TRUE);
|
||
|
|
|
||
|
|
/* This is the loop that attempts to connect to all IP-addresses we
|
||
|
|
know for the given host. One by one. */
|
||
|
|
for(rc=-1, aliasindex=0;
|
||
|
|
rc && (struct in_addr *)remotehost->h_addr_list[aliasindex];
|
||
|
|
aliasindex++) {
|
||
|
|
struct sockaddr_in serv_addr;
|
||
|
|
|
||
|
|
/* do this nasty work to do the connect */
|
||
|
|
memset((char *) &serv_addr, '\0', sizeof(serv_addr));
|
||
|
|
memcpy((char *)&(serv_addr.sin_addr),
|
||
|
|
(struct in_addr *)remotehost->h_addr_list[aliasindex],
|
||
|
|
sizeof(struct in_addr));
|
||
|
|
serv_addr.sin_family = remotehost->h_addrtype;
|
||
|
|
serv_addr.sin_port = htons(port);
|
||
|
|
|
||
|
|
rc = connect(sockfd, (struct sockaddr *)&serv_addr,
|
||
|
|
sizeof(serv_addr));
|
||
|
|
|
||
|
|
if(-1 == rc) {
|
||
|
|
int error=geterrno();
|
||
|
|
|
||
|
|
switch (error) {
|
||
|
|
case EINPROGRESS:
|
||
|
|
case EWOULDBLOCK:
|
||
|
|
#if defined(EAGAIN) && EAGAIN != EWOULDBLOCK
|
||
|
|
/* On some platforms EAGAIN and EWOULDBLOCK are the
|
||
|
|
* same value, and on others they are different, hence
|
||
|
|
* the odd #if
|
||
|
|
*/
|
||
|
|
case EAGAIN:
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* asynchronous connect, wait for connect or timeout */
|
||
|
|
rc = waitconnect(sockfd, timeout_ms);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
/* unknown error, fallthrough and try another address! */
|
||
|
|
failf(data, "Failed to connect to IP number %d", aliasindex+1);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if(0 == rc) {
|
||
|
|
int err = socketerror(sockfd);
|
||
|
|
if ((0 == err) || (EISCONN == err)) {
|
||
|
|
/* we are connected, awesome! */
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
/* nope, not connected for real */
|
||
|
|
rc = -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(0 != rc) {
|
||
|
|
/* get a new timeout for next attempt */
|
||
|
|
after = Curl_tvnow();
|
||
|
|
timeout_ms -= Curl_tvdiff(after, before);
|
||
|
|
if(timeout_ms < 0) {
|
||
|
|
failf(data, "Connect timeout on IP number %d", aliasindex+1);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
before = after;
|
||
|
|
continue; /* try next address */
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
if(0 != rc) {
|
||
|
|
/* no good connect was made */
|
||
|
|
sclose(sockfd);
|
||
|
|
*sockconn = -1;
|
||
|
|
failf(data, "Couldn't connect to host");
|
||
|
|
return CURLE_COULDNT_CONNECT;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* leave the socket in non-blocking mode */
|
||
|
|
|
||
|
|
if(addr)
|
||
|
|
/* this is the address we've connected to */
|
||
|
|
*addr = (struct in_addr *)remotehost->h_addr_list[aliasindex];
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* allow NULL-pointers to get passed in */
|
||
|
|
if(sockconn)
|
||
|
|
*sockconn = sockfd; /* the socket descriptor we've connected */
|
||
|
|
|
||
|
|
return CURLE_OK;
|
||
|
|
}
|
||
|
|
|