summaryrefslogtreecommitdiff
path: root/mobicore/common/curl/lib/connect.c
diff options
context:
space:
mode:
Diffstat (limited to 'mobicore/common/curl/lib/connect.c')
-rw-r--r--mobicore/common/curl/lib/connect.c1138
1 files changed, 0 insertions, 1138 deletions
diff --git a/mobicore/common/curl/lib/connect.c b/mobicore/common/curl/lib/connect.c
deleted file mode 100644
index 7638854..0000000
--- a/mobicore/common/curl/lib/connect.c
+++ /dev/null
@@ -1,1138 +0,0 @@
-/***************************************************************************
- * _ _ ____ _
- * Project ___| | | | _ \| |
- * / __| | | | |_) | |
- * | (__| |_| | _ <| |___
- * \___|\___/|_| \_\_____|
- *
- * Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
- *
- * This software is licensed as described in the file COPYING, which
- * you should have received as part of this distribution. The terms
- * are also available at http://curl.haxx.se/docs/copyright.html.
- *
- * 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 COPYING file.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ***************************************************************************/
-
-#include "setup.h"
-
-#ifdef HAVE_SYS_TIME_H
-#include <sys/time.h>
-#endif
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-#include <netinet/in.h> /* <netinet/tcp.h> may need it */
-#endif
-#ifdef HAVE_SYS_UN_H
-#include <sys/un.h> /* for sockaddr_un */
-#endif
-#ifdef HAVE_NETINET_TCP_H
-#include <netinet/tcp.h> /* for TCP_NODELAY */
-#endif
-#ifdef HAVE_SYS_IOCTL_H
-#include <sys/ioctl.h>
-#endif
-#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_ARPA_INET_H
-#include <arpa/inet.h>
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-
-#if (defined(HAVE_IOCTL_FIONBIO) && defined(NETWARE))
-#include <sys/filio.h>
-#endif
-#ifdef NETWARE
-#undef in_addr_t
-#define in_addr_t unsigned long
-#endif
-#ifdef __VMS
-#include <in.h>
-#include <inet.h>
-#endif
-
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-
-#define _MPRINTF_REPLACE /* use our functions only */
-#include <curl/mprintf.h>
-
-#include "urldata.h"
-#include "sendf.h"
-#include "if2ip.h"
-#include "strerror.h"
-#include "connect.h"
-#include "curl_memory.h"
-#include "select.h"
-#include "url.h" /* for Curl_safefree() */
-#include "multiif.h"
-#include "sockaddr.h" /* required for Curl_sockaddr_storage */
-#include "inet_ntop.h"
-#include "inet_pton.h"
-#include "sslgen.h" /* for Curl_ssl_check_cxn() */
-#include "progress.h"
-
-/* The last #include file should be: */
-#include "memdebug.h"
-
-#ifdef __SYMBIAN32__
-/* This isn't actually supported under Symbian OS */
-#undef SO_NOSIGPIPE
-#endif
-
-struct Curl_sockaddr_ex {
- int family;
- int socktype;
- int protocol;
- unsigned int addrlen;
- union {
- struct sockaddr addr;
- struct Curl_sockaddr_storage buff;
- } _sa_ex_u;
-};
-#define sa_addr _sa_ex_u.addr
-
-static bool verifyconnect(curl_socket_t sockfd, int *error);
-
-static CURLcode
-singleipconnect(struct connectdata *conn,
- const Curl_addrinfo *ai, /* start connecting to this */
- long timeout_ms,
- curl_socket_t *sock,
- bool *connected);
-
-/*
- * Curl_timeleft() returns the amount of milliseconds left allowed for the
- * transfer/connection. If the value is negative, the timeout time has already
- * elapsed.
- *
- * If 'nowp' is non-NULL, it points to the current time.
- * 'duringconnect' is FALSE if not during a connect, as then of course the
- * connect timeout is not taken into account!
- */
-long Curl_timeleft(struct connectdata *conn,
- struct timeval *nowp,
- bool duringconnect)
-{
- struct SessionHandle *data = conn->data;
- int timeout_set = 0;
- long timeout_ms = duringconnect?DEFAULT_CONNECT_TIMEOUT:0;
- struct timeval now;
-
- /* if a timeout is set, use the most restrictive one */
-
- if(data->set.timeout > 0)
- timeout_set |= 1;
- if(duringconnect && (data->set.connecttimeout > 0))
- timeout_set |= 2;
-
- switch (timeout_set) {
- case 1:
- timeout_ms = data->set.timeout;
- break;
- case 2:
- timeout_ms = data->set.connecttimeout;
- break;
- case 3:
- if(data->set.timeout < data->set.connecttimeout)
- timeout_ms = data->set.timeout;
- else
- timeout_ms = data->set.connecttimeout;
- break;
- default:
- /* use the default */
- if(!duringconnect)
- /* if we're not during connect, there's no default timeout so if we're
- at zero we better just return zero and not make it a negative number
- by the math below */
- return 0;
- break;
- }
-
- if(!nowp) {
- now = Curl_tvnow();
- nowp = &now;
- }
-
- /* substract elapsed time */
- timeout_ms -= Curl_tvdiff(*nowp, data->progress.t_startsingle);
- if(!timeout_ms)
- /* avoid returning 0 as that means no timeout! */
- return -1;
-
- return timeout_ms;
-}
-
-/*
- * waitconnect() waits for a TCP connect on the given socket for the specified
- * number if milliseconds. It returns:
- */
-
-#define WAITCONN_CONNECTED 0
-#define WAITCONN_SELECT_ERROR -1
-#define WAITCONN_TIMEOUT 1
-#define WAITCONN_FDSET_ERROR 2
-#define WAITCONN_ABORTED 3
-
-static
-int waitconnect(struct connectdata *conn,
- curl_socket_t sockfd, /* socket */
- long timeout_msec)
-{
- int rc;
-#ifdef mpeix
- /* Call this function once now, and ignore the results. We do this to
- "clear" the error state on the socket so that we can later read it
- reliably. This is reported necessary on the MPE/iX operating system. */
- (void)verifyconnect(sockfd, NULL);
-#endif
-
- for(;;) {
-
- /* now select() until we get connect or timeout */
- rc = Curl_socket_ready(CURL_SOCKET_BAD, sockfd, (int)(timeout_msec>1000?
- 1000:timeout_msec));
- if(Curl_pgrsUpdate(conn))
- return WAITCONN_ABORTED;
-
- if(-1 == rc)
- /* error, no connect here, try next */
- return WAITCONN_SELECT_ERROR;
-
- else if(0 == rc) {
- /* timeout */
- timeout_msec -= 1000;
- if(timeout_msec <= 0)
- return WAITCONN_TIMEOUT;
-
- continue;
- }
-
- if(rc & CURL_CSELECT_ERR)
- /* error condition caught */
- return WAITCONN_FDSET_ERROR;
-
- break;
- }
- return WAITCONN_CONNECTED;
-}
-
-static CURLcode bindlocal(struct connectdata *conn,
- curl_socket_t sockfd, int af)
-{
- struct SessionHandle *data = conn->data;
-
- struct Curl_sockaddr_storage sa;
- struct sockaddr *sock = (struct sockaddr *)&sa; /* bind to this address */
- curl_socklen_t sizeof_sa = 0; /* size of the data sock points to */
- struct sockaddr_in *si4 = (struct sockaddr_in *)&sa;
-#ifdef ENABLE_IPV6
- struct sockaddr_in6 *si6 = (struct sockaddr_in6 *)&sa;
-#endif
-
- struct Curl_dns_entry *h=NULL;
- unsigned short port = data->set.localport; /* use this port number, 0 for
- "random" */
- /* how many port numbers to try to bind to, increasing one at a time */
- int portnum = data->set.localportrange;
- const char *dev = data->set.str[STRING_DEVICE];
- int error;
- char myhost[256] = "";
- int done = 0; /* -1 for error, 1 for address found */
-
- /*************************************************************
- * Select device to bind socket to
- *************************************************************/
- if ( !dev && !port )
- /* no local kind of binding was requested */
- return CURLE_OK;
-
- memset(&sa, 0, sizeof(struct Curl_sockaddr_storage));
-
- if(dev && (strlen(dev)<255) ) {
-
- /* interface */
- if(Curl_if2ip(af, dev, myhost, sizeof(myhost))) {
- /*
- * We now have the numerical IP address in the 'myhost' buffer
- */
- infof(data, "Local Interface %s is ip %s using address family %i\n",
- dev, myhost, af);
- done = 1;
-
-#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,
- dev, (curl_socklen_t)strlen(dev)+1) != 0) {
- 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 */
- }
-#endif
- }
- else {
- /*
- * This was not an interface, resolve the name as a host name
- * or IP number
- *
- * 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.
- */
- long ipver = conn->ip_version;
- int rc;
-
- if (af == AF_INET)
- conn->ip_version = CURL_IPRESOLVE_V4;
-#ifdef ENABLE_IPV6
- else if (af == AF_INET6)
- conn->ip_version = CURL_IPRESOLVE_V6;
-#endif
-
- rc = Curl_resolv(conn, dev, 0, &h);
- if(rc == CURLRESOLV_PENDING)
- (void)Curl_wait_for_resolv(conn, &h);
- conn->ip_version = ipver;
-
- if(h) {
- /* convert the resolved address, sizeof myhost >= INET_ADDRSTRLEN */
- 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);
- Curl_resolv_unlock(data, h);
- 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;
- }
- }
-
- if(done > 0) {
-#ifdef ENABLE_IPV6
- /* ipv6 address */
- if((af == AF_INET6) &&
- (Curl_inet_pton(AF_INET6, myhost, &si6->sin6_addr) > 0)) {
- si6->sin6_family = AF_INET6;
- si6->sin6_port = htons(port);
- sizeof_sa = sizeof(struct sockaddr_in6);
- }
- else
-#endif
- /* ipv4 address */
- if((af == AF_INET) &&
- (Curl_inet_pton(AF_INET, myhost, &si4->sin_addr) > 0)) {
- si4->sin_family = AF_INET;
- si4->sin_port = htons(port);
- sizeof_sa = sizeof(struct sockaddr_in);
- }
- }
-
- if(done < 1) {
- failf(data, "Couldn't bind to '%s'", dev);
- return CURLE_INTERFACE_FAILED;
- }
- }
- else {
- /* no device was given, prepare sa to match af's needs */
-#ifdef ENABLE_IPV6
- if ( af == AF_INET6 ) {
- si6->sin6_family = AF_INET6;
- si6->sin6_port = htons(port);
- sizeof_sa = sizeof(struct sockaddr_in6);
- }
- else
-#endif
- if ( af == AF_INET ) {
- si4->sin_family = AF_INET;
- si4->sin_port = htons(port);
- sizeof_sa = sizeof(struct sockaddr_in);
- }
- }
-
- for(;;) {
- if( bind(sockfd, sock, sizeof_sa) >= 0) {
- /* we succeeded to bind */
- struct Curl_sockaddr_storage add;
- curl_socklen_t size = sizeof(add);
- memset(&add, 0, sizeof(struct Curl_sockaddr_storage));
- if(getsockname(sockfd, (struct sockaddr *) &add, &size) < 0) {
- data->state.os_errno = error = SOCKERRNO;
- failf(data, "getsockname() failed with errno %d: %s",
- error, Curl_strerror(conn, error));
- return CURLE_INTERFACE_FAILED;
- }
- infof(data, "Local port: %hu\n", port);
- conn->bits.bound = TRUE;
- return CURLE_OK;
- }
-
- if(--portnum > 0) {
- infof(data, "Bind to local port %hu failed, trying next\n", port);
- port++; /* try next port */
- /* 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
- }
- else
- break;
- }
-
- data->state.os_errno = error = SOCKERRNO;
- failf(data, "bind failed with errno %d: %s",
- error, Curl_strerror(conn, error));
-
- return CURLE_INTERFACE_FAILED;
-}
-
-/*
- * verifyconnect() returns TRUE if the connect really has happened.
- */
-static bool verifyconnect(curl_socket_t sockfd, int *error)
-{
- bool rc = TRUE;
-#ifdef SO_ERROR
- int err = 0;
- curl_socklen_t errSize = sizeof(err);
-
-#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."
- */
-
-#ifdef _WIN32_WCE
- Sleep(0);
-#else
- SleepEx(0, FALSE);
-#endif
-
-#endif
-
- if(0 != getsockopt(sockfd, SOL_SOCKET, SO_ERROR, (void *)&err, &errSize))
- err = SOCKERRNO;
-#ifdef _WIN32_WCE
- /* Old WinCE versions don't support SO_ERROR */
- if(WSAENOPROTOOPT == err) {
- SET_SOCKERRNO(0);
- err = 0;
- }
-#endif
-#ifdef __minix
- /* Minix 3.1.x doesn't support getsockopt on UDP sockets */
- if(EBADIOCTL == err) {
- SET_SOCKERRNO(0);
- err = 0;
- }
-#endif
- if((0 == err) || (EISCONN == err))
- /* we are connected, awesome! */
- rc = TRUE;
- else
- /* This wasn't a successful connect */
- rc = FALSE;
- if(error)
- *error = err;
-#else
- (void)sockfd;
- if(error)
- *error = SOCKERRNO;
-#endif
- return rc;
-}
-
-/* Used within the multi interface. Try next IP address, return TRUE if no
- more address exists or error */
-static CURLcode trynextip(struct connectdata *conn,
- int sockindex,
- bool *connected)
-{
- curl_socket_t sockfd;
- Curl_addrinfo *ai;
-
- /* 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];
- conn->sock[sockindex] = CURL_SOCKET_BAD;
- *connected = FALSE;
-
- if(sockindex != FIRSTSOCKET) {
- sclose(fd_to_close);
- return CURLE_COULDNT_CONNECT; /* no next */
- }
-
- /* try the next address */
- ai = conn->ip_addr->ai_next;
-
- while(ai) {
- CURLcode res = singleipconnect(conn, ai, 0L, &sockfd, connected);
- if(res)
- return res;
- if(sockfd != CURL_SOCKET_BAD) {
- /* store the new socket descriptor */
- conn->sock[sockindex] = sockfd;
- conn->ip_addr = ai;
- sclose(fd_to_close);
- return CURLE_OK;
- }
- ai = ai->ai_next;
- }
- sclose(fd_to_close);
- return CURLE_COULDNT_CONNECT;
-}
-
-/* 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;
-}
-
-/* retrieves ip address and port from a sockaddr structure */
-static bool getaddressinfo(struct sockaddr* sa, char* addr,
- long* port)
-{
- unsigned short us_port;
- struct sockaddr_in* si = NULL;
-#ifdef ENABLE_IPV6
- struct sockaddr_in6* si6 = NULL;
-#endif
-#if defined(HAVE_SYS_UN_H) && defined(AF_UNIX)
- struct sockaddr_un* su = NULL;
-#endif
-
- switch (sa->sa_family) {
- case AF_INET:
- si = (struct sockaddr_in*) sa;
- if(Curl_inet_ntop(sa->sa_family, &si->sin_addr,
- addr, MAX_IPADR_LEN)) {
- us_port = ntohs(si->sin_port);
- *port = us_port;
- return TRUE;
- }
- break;
-#ifdef ENABLE_IPV6
- case AF_INET6:
- si6 = (struct sockaddr_in6*)sa;
- if(Curl_inet_ntop(sa->sa_family, &si6->sin6_addr,
- addr, MAX_IPADR_LEN)) {
- us_port = ntohs(si6->sin6_port);
- *port = us_port;
- return TRUE;
- }
- break;
-#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;
- return TRUE;
-#endif
- default:
- break;
- }
-
- addr[0] = '\0';
- *port = 0;
-
- return FALSE;
-}
-
-/* retrieves the start/end point information of a socket of an established
- connection */
-void Curl_updateconninfo(struct connectdata *conn, curl_socket_t sockfd)
-{
- int error;
- curl_socklen_t len;
- struct Curl_sockaddr_storage ssrem;
- struct Curl_sockaddr_storage ssloc;
- struct SessionHandle *data = conn->data;
-
- if(!conn->bits.reuse) {
-
- 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;
- }
-
- 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;
- }
-
- 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;
- }
-
- }
-
- /* persist connection info in session handle */
- Curl_persistconninfo(conn);
-}
-
-/*
- * Curl_is_connected() is used from the multi interface to check if the
- * firstsocket has connected.
- */
-
-CURLcode Curl_is_connected(struct connectdata *conn,
- int sockindex,
- bool *connected)
-{
- int rc;
- struct SessionHandle *data = conn->data;
- CURLcode code = CURLE_OK;
- curl_socket_t sockfd = conn->sock[sockindex];
- long allow = DEFAULT_CONNECT_TIMEOUT;
- int error = 0;
-
- DEBUGASSERT(sockindex >= FIRSTSOCKET && sockindex <= SECONDARYSOCKET);
-
- *connected = FALSE; /* a very negative world view is best */
-
- if(conn->bits.tcpconnect) {
- /* we are connected already! */
- *connected = TRUE;
- return CURLE_OK;
- }
-
- /* figure out how long time we have left to connect */
- allow = Curl_timeleft(conn, NULL, TRUE);
-
- if(allow < 0) {
- /* time-out, bail out, go home */
- failf(data, "Connection time-out");
- return CURLE_OPERATION_TIMEDOUT;
- }
-
- /* check for connect without timeout as we want to return immediately */
- rc = waitconnect(conn, sockfd, 0);
- if(WAITCONN_TIMEOUT == rc)
- /* not an error, but also no connection yet */
- return code;
-
- if(WAITCONN_CONNECTED == rc) {
- if(verifyconnect(sockfd, &error)) {
- /* we are connected, awesome! */
- conn->bits.tcpconnect = TRUE;
- *connected = TRUE;
- Curl_pgrsTime(data, TIMER_CONNECT); /* connect done */
- Curl_verboseconnect(conn);
- Curl_updateconninfo(conn, sockfd);
-
- return CURLE_OK;
- }
- /* nope, not connected for real */
- }
- else {
- /* nope, not connected */
- if(WAITCONN_FDSET_ERROR == rc) {
- (void)verifyconnect(sockfd, &error);
- infof(data, "%s\n",Curl_strerror(conn, error));
- }
- else
- infof(data, "Connection failed\n");
- }
-
- /*
- * The connection failed here, we should attempt to connect to the "next
- * address" for the given host. But first remember the latest error.
- */
- if(error) {
- data->state.os_errno = error;
- SET_SOCKERRNO(error);
- }
-
- 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));
- }
-
- return code;
-}
-
-static void tcpnodelay(struct connectdata *conn,
- curl_socket_t sockfd)
-{
-#ifdef TCP_NODELAY
- struct SessionHandle *data= conn->data;
- curl_socklen_t onoff = (curl_socklen_t) data->set.tcp_nodelay;
- int proto = IPPROTO_TCP;
-
-#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. */
- struct protoent *pe = getprotobyname("tcp");
- if(pe)
- proto = pe->p_proto;
-#endif
-
- if(setsockopt(sockfd, proto, TCP_NODELAY, (void *)&onoff,
- sizeof(onoff)) < 0)
- infof(data, "Could not set TCP_NODELAY: %s\n",
- Curl_strerror(conn, SOCKERRNO));
- else
- infof(data,"TCP_NODELAY set\n");
-#else
- (void)conn;
- (void)sockfd;
-#endif
-}
-
-#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",
- Curl_strerror(conn, SOCKERRNO));
-}
-#else
-#define nosigpipe(x,y)
-#endif
-
-#ifdef WIN32
-/* 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
-
-*/
-void Curl_sndbufset(curl_socket_t sockfd)
-{
- int val = CURL_MAX_WRITE_SIZE + 32;
- int curval = 0;
- int curlen = sizeof(curval);
-
- if (getsockopt(sockfd, SOL_SOCKET, SO_SNDBUF, (char *)&curval, &curlen) == 0)
- if (curval > val)
- return;
-
- setsockopt(sockfd, SOL_SOCKET, SO_SNDBUF, (const char *)&val, sizeof(val));
-}
-#endif
-
-
-/*
- * 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
-singleipconnect(struct connectdata *conn,
- const Curl_addrinfo *ai,
- long timeout_ms,
- curl_socket_t *sockp,
- bool *connected)
-{
- struct Curl_sockaddr_ex addr;
- int rc;
- int error;
- bool isconnected;
- struct SessionHandle *data = conn->data;
- curl_socket_t sockfd;
- CURLcode res = CURLE_OK;
-#if defined(ENABLE_IPV6) && defined(HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID)
- struct sockaddr_in6 * const sa6 = (void *)&addr.sa_addr;
-#endif
-
- *sockp = CURL_SOCKET_BAD;
-
- /*
- * 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 = 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);
-
- *connected = FALSE; /* default is not connected */
-
- 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 */
- return CURLE_OK;
-
-#if defined(ENABLE_IPV6) && defined(HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID)
- if (conn->scope && (addr.family == AF_INET6))
- sa6->sin6_scope_id = conn->scope;
-#endif
-
- /* store remote address and port used in this connection attempt */
- if(!getaddressinfo((struct sockaddr*)&addr.sa_addr,
- conn->primary_ip, &conn->primary_port)) {
- /* malformed address or bug in inet_ntop, try next address */
- error = ERRNO;
- failf(data, "sa_addr inet_ntop() failed with errno %d: %s",
- error, Curl_strerror(conn, error));
- sclose(sockfd);
- return CURLE_OK;
- }
- memcpy(conn->ip_addr_str, conn->primary_ip, MAX_IPADR_LEN);
- infof(data, " Trying %s... ", conn->ip_addr_str);
-
- Curl_persistconninfo(conn);
-
-#ifdef ENABLE_IPV6
- if(addr.family == AF_INET6)
- conn->bits.ipv6 = TRUE;
-#endif
-
- if(data->set.tcp_nodelay)
- tcpnodelay(conn, sockfd);
-
- nosigpipe(conn, sockfd);
-
- Curl_sndbufset(sockfd);
-
- if(data->set.fsockopt) {
- /* activate callback for setting socket options */
- error = data->set.fsockopt(data->set.sockopt_client,
- sockfd,
- CURLSOCKTYPE_IPCXN);
- if(error) {
- sclose(sockfd); /* close the socket and bail out */
- return res;
- }
- }
-
- /* possibly bind the local end to an IP, interface or port */
- res = bindlocal(conn, sockfd, addr.family);
- if(res) {
- sclose(sockfd); /* close socket and bail out */
- return res;
- }
-
- /* set socket non-blocking */
- curlx_nonblock(sockfd, TRUE);
-
- /* Connect TCP sockets, bind UDP */
- if(conn->socktype == SOCK_STREAM)
- rc = connect(sockfd, &addr.sa_addr, addr.addrlen);
- else
- rc = 0;
-
- if(-1 == rc) {
- error = SOCKERRNO;
-
- switch (error) {
- case EINPROGRESS:
- case EWOULDBLOCK:
-#if defined(EAGAIN)
-#if (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
-#endif
- rc = waitconnect(conn, sockfd, timeout_ms);
- if(WAITCONN_ABORTED == rc) {
- sclose(sockfd);
- return CURLE_ABORTED_BY_CALLBACK;
- }
- break;
- default:
- /* unknown error, fallthrough and try another address! */
- failf(data, "Failed to connect to %s: %s",
- conn->ip_addr_str, Curl_strerror(conn,error));
- data->state.os_errno = error;
- 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 */
- *sockp = sockfd;
- return CURLE_OK;
- }
-
- isconnected = verifyconnect(sockfd, &error);
-
- if(!rc && isconnected) {
- /* we are connected, awesome! */
- *connected = TRUE; /* this is a true connect */
- infof(data, "connected\n");
- Curl_updateconninfo(conn, sockfd);
- *sockp = sockfd;
- return CURLE_OK;
- }
- else if(WAITCONN_TIMEOUT == rc)
- infof(data, "Timeout\n");
- else {
- data->state.os_errno = error;
- infof(data, "%s\n", Curl_strerror(conn, error));
- }
-
- /* connect failed or timed out */
- sclose(sockfd);
-
- return CURLE_OK;
-}
-
-/*
- * 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 */
- const struct Curl_dns_entry *remotehost,
- curl_socket_t *sockconn, /* the connected socket */
- Curl_addrinfo **addr, /* the one we used */
- bool *connected) /* really connected? */
-{
- struct SessionHandle *data = conn->data;
- curl_socket_t sockfd = CURL_SOCKET_BAD;
- int aliasindex;
- int num_addr;
- Curl_addrinfo *ai;
- Curl_addrinfo *curr_addr;
-
- struct timeval after;
- struct timeval before = Curl_tvnow();
-
- /*************************************************************
- * Figure out what maximum time we have left
- *************************************************************/
- long timeout_ms;
- long timeout_per_addr;
-
- DEBUGASSERT(sockconn);
- *connected = FALSE; /* default to not connected */
-
- /* get the timeout left */
- timeout_ms = Curl_timeleft(conn, &before, TRUE);
-
- if(timeout_ms < 0) {
- /* a precaution, no need to continue if time already is up */
- failf(data, "Connection time-out");
- return CURLE_OPERATION_TIMEDOUT;
- }
-
- /* Max time for each address */
- num_addr = Curl_num_addresses(remotehost->addr);
- timeout_per_addr = timeout_ms / num_addr;
-
- ai = remotehost->addr;
-
- /* Below is the loop that attempts to connect to all IP-addresses we
- * know for the given host. One by one until one IP succeeds.
- */
-
- if(data->state.used_interface == Curl_if_multi)
- /* don't hang when doing multi */
- timeout_per_addr = 0;
-
- /*
- * Connecting with a Curl_addrinfo chain
- */
- for (curr_addr = ai, aliasindex=0; curr_addr;
- curr_addr = curr_addr->ai_next, aliasindex++) {
-
- /* start connecting to the IP curr_addr points to */
- CURLcode res =
- singleipconnect(conn, curr_addr, timeout_per_addr, &sockfd, connected);
-
- if(res)
- return res;
-
- if(sockfd != CURL_SOCKET_BAD)
- break;
-
- /* 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_TIMEDOUT;
- }
- before = after;
- } /* end of connect-to-each-address loop */
-
- *sockconn = sockfd; /* the socket descriptor we've connected */
-
- if(sockfd == CURL_SOCKET_BAD) {
- /* no good connect was made */
- failf(data, "couldn't connect to host");
- return CURLE_COULDNT_CONNECT;
- }
-
- /* leave the socket in non-blocking mode */
-
- /* store the address we use */
- if(addr)
- *addr = curr_addr;
-
- data->info.numconnects++; /* to track the number of connections made */
-
- return CURLE_OK;
-}
-
-/*
- * Used to extract socket and connectdata struct for the most recent
- * transfer on the given SessionHandle.
- *
- * The returned socket will be CURL_SOCKET_BAD in case of failure!
- */
-curl_socket_t Curl_getconnectinfo(struct SessionHandle *data,
- struct connectdata **connp)
-{
- curl_socket_t sockfd;
- 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;
- sockfd = c->sock[FIRSTSOCKET];
- /* 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))
- return CURL_SOCKET_BAD; /* FIN received */
- }
-/* 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) {
- return CURL_SOCKET_BAD; /* FIN received */
- }
- }
-#endif
- }
- else
- return CURL_SOCKET_BAD;
-
- return sockfd;
-}