dlls/wininet/netconnection.c

   1 /*
   2  * Wininet - networking layer. Uses unix sockets or OpenSSL.
   3  *
   4  * Copyright 2002 TransGaming Technologies Inc.
   5  *
   6  * David Hammerton
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include "config.h"
  24 #include "wine/port.h"
  25
  26 #if defined(__MINGW32__) || defined (_MSC_VER)
  27 #include <ws2tcpip.h>
  28 #endif
  29
  30 #include <sys/types.h>
  31 #ifdef HAVE_POLL_H
  32 #include <poll.h>
  33 #endif
  34 #ifdef HAVE_SYS_POLL_H
  35 # include <sys/poll.h>
  36 #endif
  37 #ifdef HAVE_SYS_TIME_H
  38 # include <sys/time.h>
  39 #endif
  40 #ifdef HAVE_SYS_SOCKET_H
  41 # include <sys/socket.h>
  42 #endif
  43 #ifdef HAVE_SYS_FILIO_H
  44 # include <sys/filio.h>
  45 #endif
  46 #ifdef HAVE_UNISTD_H
  47 # include <unistd.h>
  48 #endif
  49 #ifdef HAVE_SYS_IOCTL_H
  50 # include <sys/ioctl.h>
  51 #endif
  52 #include <time.h>
  53 #ifdef HAVE_NETDB_H
  54 # include <netdb.h>
  55 #endif
  56 #ifdef HAVE_NETINET_IN_H
  57 # include <netinet/in.h>
  58 #endif
  59 #ifdef HAVE_OPENSSL_SSL_H
  60 # include <openssl/ssl.h>
  61 #undef FAR
  62 #undef DSA
  63 #endif
  64
  65 #include <stdarg.h>
  66 #include <stdlib.h>
  67 #include <string.h>
  68 #include <stdio.h>
  69 #include <errno.h>
  70
  71 #include "wine/library.h"
  72 #include "windef.h"
  73 #include "winbase.h"
  74 #include "wininet.h"
  75 #include "winerror.h"
  76 #include "wincrypt.h"
  77
  78 #include "wine/debug.h"
  79 #include "internet.h"
  80
  81 /* To avoid conflicts with the Unix socket headers. we only need it for
  82  * the error codes anyway. */
  83 #define USE_WS_PREFIX
  84 #include "winsock2.h"
  85
  86 #define RESPONSE_TIMEOUT        30            /* FROM internet.c */
  87
  88
  89 WINE_DEFAULT_DEBUG_CHANNEL(wininet);
  90
  91 /* FIXME!!!!!!
  92  *    This should use winsock - To use winsock the functions will have to change a bit
  93  *        as they are designed for unix sockets.
  94  *    SSL stuff should use crypt32.dll
  95  */
  96
  97 #ifdef SONAME_LIBSSL
  98
  99 #include <openssl/err.h>
 100
 101 static CRITICAL_SECTION init_ssl_cs;
 102 static CRITICAL_SECTION_DEBUG init_ssl_cs_debug =
 103 {
 104     0, 0, &init_ssl_cs,
 105     { &init_ssl_cs_debug.ProcessLocksList,
 106       &init_ssl_cs_debug.ProcessLocksList },
 107     0, 0, { (DWORD_PTR)(__FILE__ ": init_ssl_cs") }
 108 };
 109 static CRITICAL_SECTION init_ssl_cs = { &init_ssl_cs_debug, -1, 0, 0, 0, 0 };
 110
 111 static void *OpenSSL_ssl_handle;
 112 static void *OpenSSL_crypto_handle;
 113
 114 static SSL_METHOD *meth;
 115 static SSL_CTX *ctx;
 116
 117 #define MAKE_FUNCPTR(f) static typeof(f) * p##f
 118
 119 /* OpenSSL functions that we use */
 120 MAKE_FUNCPTR(SSL_library_init);
 121 MAKE_FUNCPTR(SSL_load_error_strings);
 122 MAKE_FUNCPTR(SSLv23_method);
 123 MAKE_FUNCPTR(SSL_CTX_new);
 124 MAKE_FUNCPTR(SSL_new);
 125 MAKE_FUNCPTR(SSL_free);
 126 MAKE_FUNCPTR(SSL_set_fd);
 127 MAKE_FUNCPTR(SSL_connect);
 128 MAKE_FUNCPTR(SSL_shutdown);
 129 MAKE_FUNCPTR(SSL_write);
 130 MAKE_FUNCPTR(SSL_read);
 131 MAKE_FUNCPTR(SSL_pending);
 132 MAKE_FUNCPTR(SSL_get_verify_result);
 133 MAKE_FUNCPTR(SSL_get_peer_certificate);
 134 MAKE_FUNCPTR(SSL_CTX_get_timeout);
 135 MAKE_FUNCPTR(SSL_CTX_set_timeout);
 136 MAKE_FUNCPTR(SSL_CTX_set_default_verify_paths);
 137
 138 /* OpenSSL's libcrypto functions that we use */
 139 MAKE_FUNCPTR(BIO_new_fp);
 140 MAKE_FUNCPTR(ERR_get_error);
 141 MAKE_FUNCPTR(ERR_error_string);
 142 MAKE_FUNCPTR(i2d_X509);
 143 #undef MAKE_FUNCPTR
 144
 145 #endif
 146
 147 BOOL NETCON_init(WININET_NETCONNECTION *connection, BOOL useSSL)
 148 {
 149     connection->useSSL = FALSE;
 150     connection->socketFD = -1;
 151     if (useSSL)
 152     {
 153 #if defined(SONAME_LIBSSL) && defined(SONAME_LIBCRYPTO)
 154         TRACE("using SSL connection\n");
 155         EnterCriticalSection(&init_ssl_cs);
 156         if (OpenSSL_ssl_handle) /* already initialized everything */
 157         {
 158             LeaveCriticalSection(&init_ssl_cs);
 159             return TRUE;
 160         }
 161         OpenSSL_ssl_handle = wine_dlopen(SONAME_LIBSSL, RTLD_NOW, NULL, 0);
 162         if (!OpenSSL_ssl_handle)
 163         {
 164             ERR("trying to use a SSL connection, but couldn't load %s. Expect trouble.\n",
 165                 SONAME_LIBSSL);
 166             INTERNET_SetLastError(ERROR_INTERNET_SECURITY_CHANNEL_ERROR);
 167             LeaveCriticalSection(&init_ssl_cs);
 168             return FALSE;
 169         }
 170         OpenSSL_crypto_handle = wine_dlopen(SONAME_LIBCRYPTO, RTLD_NOW, NULL, 0);
 171         if (!OpenSSL_crypto_handle)
 172         {
 173             ERR("trying to use a SSL connection, but couldn't load %s. Expect trouble.\n",
 174                 SONAME_LIBCRYPTO);
 175             INTERNET_SetLastError(ERROR_INTERNET_SECURITY_CHANNEL_ERROR);
 176             LeaveCriticalSection(&init_ssl_cs);
 177             return FALSE;
 178         }
 179
 180         /* mmm nice ugly macroness */
 181 #define DYNSSL(x) \
 182     p##x = wine_dlsym(OpenSSL_ssl_handle, #x, NULL, 0); \
 183     if (!p##x) \
 184     { \
 185         ERR("failed to load symbol %s\n", #x); \
 186         INTERNET_SetLastError(ERROR_INTERNET_SECURITY_CHANNEL_ERROR); \
 187         LeaveCriticalSection(&init_ssl_cs); \
 188         return FALSE; \
 189     }
 190
 191         DYNSSL(SSL_library_init);
 192         DYNSSL(SSL_load_error_strings);
 193         DYNSSL(SSLv23_method);
 194         DYNSSL(SSL_CTX_new);
 195         DYNSSL(SSL_new);
 196         DYNSSL(SSL_free);
 197         DYNSSL(SSL_set_fd);
 198         DYNSSL(SSL_connect);
 199         DYNSSL(SSL_shutdown);
 200         DYNSSL(SSL_write);
 201         DYNSSL(SSL_read);
 202         DYNSSL(SSL_pending);
 203         DYNSSL(SSL_get_verify_result);
 204         DYNSSL(SSL_get_peer_certificate);
 205         DYNSSL(SSL_CTX_get_timeout);
 206         DYNSSL(SSL_CTX_set_timeout);
 207         DYNSSL(SSL_CTX_set_default_verify_paths);
 208 #undef DYNSSL
 209
 210 #define DYNCRYPTO(x) \
 211     p##x = wine_dlsym(OpenSSL_crypto_handle, #x, NULL, 0); \
 212     if (!p##x) \
 213     { \
 214         ERR("failed to load symbol %s\n", #x); \
 215         INTERNET_SetLastError(ERROR_INTERNET_SECURITY_CHANNEL_ERROR); \
 216         LeaveCriticalSection(&init_ssl_cs); \
 217         return FALSE; \
 218     }
 219         DYNCRYPTO(BIO_new_fp);
 220         DYNCRYPTO(ERR_get_error);
 221         DYNCRYPTO(ERR_error_string);
 222         DYNCRYPTO(i2d_X509);
 223 #undef DYNCRYPTO
 224
 225         pSSL_library_init();
 226         pSSL_load_error_strings();
 227         pBIO_new_fp(stderr, BIO_NOCLOSE); /* FIXME: should use winedebug stuff */
 228
 229         meth = pSSLv23_method();
 230         ctx = pSSL_CTX_new(meth);
 231         if (!pSSL_CTX_set_default_verify_paths(ctx))
 232         {
 233             ERR("SSL_CTX_set_default_verify_paths failed: %s\n",
 234                 pERR_error_string(pERR_get_error(), 0));
 235             INTERNET_SetLastError(ERROR_OUTOFMEMORY);
 236             LeaveCriticalSection(&init_ssl_cs);
 237             return FALSE;
 238         }
 239         LeaveCriticalSection(&init_ssl_cs);
 240 #else
 241         FIXME("can't use SSL, not compiled in.\n");
 242         INTERNET_SetLastError(ERROR_INTERNET_SECURITY_CHANNEL_ERROR);
 243         return FALSE;
 244 #endif
 245     }
 246     return TRUE;
 247 }
 248
 249 BOOL NETCON_connected(WININET_NETCONNECTION *connection)
 250 {
 251     if (connection->socketFD == -1)
 252         return FALSE;
 253     else
 254         return TRUE;
 255 }
 256
 257 /* translate a unix error code into a winsock one */
 258 static int sock_get_error( int err )
 259 {
 260 #if !defined(__MINGW32__) && !defined (_MSC_VER)
 261     switch (err)
 262     {
 263         case EINTR:             return WSAEINTR;
 264         case EBADF:             return WSAEBADF;
 265         case EPERM:
 266         case EACCES:            return WSAEACCES;
 267         case EFAULT:            return WSAEFAULT;
 268         case EINVAL:            return WSAEINVAL;
 269         case EMFILE:            return WSAEMFILE;
 270         case EWOULDBLOCK:       return WSAEWOULDBLOCK;
 271         case EINPROGRESS:       return WSAEINPROGRESS;
 272         case EALREADY:          return WSAEALREADY;
 273         case ENOTSOCK:          return WSAENOTSOCK;
 274         case EDESTADDRREQ:      return WSAEDESTADDRREQ;
 275         case EMSGSIZE:          return WSAEMSGSIZE;
 276         case EPROTOTYPE:        return WSAEPROTOTYPE;
 277         case ENOPROTOOPT:       return WSAENOPROTOOPT;
 278         case EPROTONOSUPPORT:   return WSAEPROTONOSUPPORT;
 279         case ESOCKTNOSUPPORT:   return WSAESOCKTNOSUPPORT;
 280         case EOPNOTSUPP:        return WSAEOPNOTSUPP;
 281         case EPFNOSUPPORT:      return WSAEPFNOSUPPORT;
 282         case EAFNOSUPPORT:      return WSAEAFNOSUPPORT;
 283         case EADDRINUSE:        return WSAEADDRINUSE;
 284         case EADDRNOTAVAIL:     return WSAEADDRNOTAVAIL;
 285         case ENETDOWN:          return WSAENETDOWN;
 286         case ENETUNREACH:       return WSAENETUNREACH;
 287         case ENETRESET:         return WSAENETRESET;
 288         case ECONNABORTED:      return WSAECONNABORTED;
 289         case EPIPE:
 290         case ECONNRESET:        return WSAECONNRESET;
 291         case ENOBUFS:           return WSAENOBUFS;
 292         case EISCONN:           return WSAEISCONN;
 293         case ENOTCONN:          return WSAENOTCONN;
 294         case ESHUTDOWN:         return WSAESHUTDOWN;
 295         case ETOOMANYREFS:      return WSAETOOMANYREFS;
 296         case ETIMEDOUT:         return WSAETIMEDOUT;
 297         case ECONNREFUSED:      return WSAECONNREFUSED;
 298         case ELOOP:             return WSAELOOP;
 299         case ENAMETOOLONG:      return WSAENAMETOOLONG;
 300         case EHOSTDOWN:         return WSAEHOSTDOWN;
 301         case EHOSTUNREACH:      return WSAEHOSTUNREACH;
 302         case ENOTEMPTY:         return WSAENOTEMPTY;
 303 #ifdef EPROCLIM
 304         case EPROCLIM:          return WSAEPROCLIM;
 305 #endif
 306 #ifdef EUSERS
 307         case EUSERS:            return WSAEUSERS;
 308 #endif
 309 #ifdef EDQUOT
 310         case EDQUOT:            return WSAEDQUOT;
 311 #endif
 312 #ifdef ESTALE
 313         case ESTALE:            return WSAESTALE;
 314 #endif
 315 #ifdef EREMOTE
 316         case EREMOTE:           return WSAEREMOTE;
 317 #endif
 318     default: errno=err; perror("sock_set_error"); return WSAEFAULT;
 319     }
 320 #endif
 321     return err;
 322 }
 323
 324 /******************************************************************************
 325  * NETCON_create
 326  * Basically calls 'socket()'
 327  */
 328 BOOL NETCON_create(WININET_NETCONNECTION *connection, int domain,
 329               int type, int protocol)
 330 {
 331 #ifdef SONAME_LIBSSL
 332     if (connection->useSSL)
 333         return FALSE;
 334 #endif
 335
 336     connection->socketFD = socket(domain, type, protocol);
 337     if (connection->socketFD == -1)
 338     {
 339         INTERNET_SetLastError(sock_get_error(errno));
 340         return FALSE;
 341     }
 342     return TRUE;
 343 }
 344
 345 /******************************************************************************
 346  * NETCON_close
 347  * Basically calls 'close()' unless we should use SSL
 348  */
 349 BOOL NETCON_close(WININET_NETCONNECTION *connection)
 350 {
 351     int result;
 352
 353     if (!NETCON_connected(connection)) return FALSE;
 354
 355 #ifdef SONAME_LIBSSL
 356     if (connection->useSSL)
 357     {
 358         pSSL_shutdown(connection->ssl_s);
 359         pSSL_free(connection->ssl_s);
 360         connection->ssl_s = NULL;
 361
 362         connection->useSSL = FALSE;
 363     }
 364 #endif
 365
 366     result = closesocket(connection->socketFD);
 367     connection->socketFD = -1;
 368
 369     if (result == -1)
 370     {
 371         INTERNET_SetLastError(sock_get_error(errno));
 372         return FALSE;
 373     }
 374     return TRUE;
 375 }
 376 #ifdef SONAME_LIBSSL
 377 static BOOL check_hostname(X509 *cert, char *hostname)
 378 {
 379     /* FIXME: implement */
 380     return TRUE;
 381 }
 382 #endif
 383 /******************************************************************************
 384  * NETCON_secure_connect
 385  * Initiates a secure connection over an existing plaintext connection.
 386  */
 387 BOOL NETCON_secure_connect(WININET_NETCONNECTION *connection, LPCWSTR hostname)
 388 {
 389 #ifdef SONAME_LIBSSL
 390     long verify_res;
 391     X509 *cert;
 392     int len;
 393     char *hostname_unix;
 394
 395     /* can't connect if we are already connected */
 396     if (connection->useSSL)
 397     {
 398         ERR("already connected\n");
 399         return FALSE;
 400     }
 401
 402     connection->ssl_s = pSSL_new(ctx);
 403     if (!connection->ssl_s)
 404     {
 405         ERR("SSL_new failed: %s\n",
 406             pERR_error_string(pERR_get_error(), 0));
 407         INTERNET_SetLastError(ERROR_OUTOFMEMORY);
 408         goto fail;
 409     }
 410
 411     if (!pSSL_set_fd(connection->ssl_s, connection->socketFD))
 412     {
 413         ERR("SSL_set_fd failed: %s\n",
 414             pERR_error_string(pERR_get_error(), 0));
 415         INTERNET_SetLastError(ERROR_INTERNET_SECURITY_CHANNEL_ERROR);
 416         goto fail;
 417     }
 418
 419     if (pSSL_connect(connection->ssl_s) <= 0)
 420     {
 421         ERR("SSL_connect failed: %s\n",
 422             pERR_error_string(pERR_get_error(), 0));
 423         INTERNET_SetLastError(ERROR_INTERNET_SECURITY_CHANNEL_ERROR);
 424         goto fail;
 425     }
 426     cert = pSSL_get_peer_certificate(connection->ssl_s);
 427     if (!cert)
 428     {
 429         ERR("no certificate for server %s\n", debugstr_w(hostname));
 430         /* FIXME: is this the best error? */
 431         INTERNET_SetLastError(ERROR_INTERNET_INVALID_CA);
 432         goto fail;
 433     }
 434     verify_res = pSSL_get_verify_result(connection->ssl_s);
 435     if (verify_res != X509_V_OK)
 436     {
 437         ERR("couldn't verify the security of the connection, %ld\n", verify_res);
 438         /* FIXME: we should set an error and return, but we only warn at
 439          * the moment */
 440     }
 441
 442     len = WideCharToMultiByte(CP_UNIXCP, 0, hostname, -1, NULL, 0, NULL, NULL);
 443     hostname_unix = HeapAlloc(GetProcessHeap(), 0, len);
 444     if (!hostname_unix)
 445     {
 446         INTERNET_SetLastError(ERROR_OUTOFMEMORY);
 447         goto fail;
 448     }
 449     WideCharToMultiByte(CP_UNIXCP, 0, hostname, -1, hostname_unix, len, NULL, NULL);
 450
 451     if (!check_hostname(cert, hostname_unix))
 452     {
 453         HeapFree(GetProcessHeap(), 0, hostname_unix);
 454         INTERNET_SetLastError(ERROR_INTERNET_SEC_CERT_CN_INVALID);
 455         goto fail;
 456     }
 457
 458     HeapFree(GetProcessHeap(), 0, hostname_unix);
 459     connection->useSSL = TRUE;
 460     return TRUE;
 461
 462 fail:
 463     if (connection->ssl_s)
 464     {
 465         pSSL_shutdown(connection->ssl_s);
 466         pSSL_free(connection->ssl_s);
 467         connection->ssl_s = NULL;
 468     }
 469 #endif
 470     return FALSE;
 471 }
 472
 473 /******************************************************************************
 474  * NETCON_connect
 475  * Connects to the specified address.
 476  */
 477 BOOL NETCON_connect(WININET_NETCONNECTION *connection, const struct sockaddr *serv_addr,
 478                     unsigned int addrlen)
 479 {
 480     int result;
 481
 482     if (!NETCON_connected(connection)) return FALSE;
 483
 484     result = connect(connection->socketFD, serv_addr, addrlen);
 485     if (result == -1)
 486     {
 487         WARN("Unable to connect to host (%s)\n", strerror(errno));
 488         INTERNET_SetLastError(sock_get_error(errno));
 489
 490         closesocket(connection->socketFD);
 491         connection->socketFD = -1;
 492         return FALSE;
 493     }
 494
 495     return TRUE;
 496 }
 497
 498 /******************************************************************************
 499  * NETCON_send
 500  * Basically calls 'send()' unless we should use SSL
 501  * number of chars send is put in *sent
 502  */
 503 BOOL NETCON_send(WININET_NETCONNECTION *connection, const void *msg, size_t len, int flags,
 504                 int *sent /* out */)
 505 {
 506     if (!NETCON_connected(connection)) return FALSE;
 507     if (!connection->useSSL)
 508     {
 509         *sent = send(connection->socketFD, msg, len, flags);
 510         if (*sent == -1)
 511         {
 512             INTERNET_SetLastError(sock_get_error(errno));
 513             return FALSE;
 514         }
 515         return TRUE;
 516     }
 517     else
 518     {
 519 #ifdef SONAME_LIBSSL
 520         if (flags)
 521             FIXME("SSL_write doesn't support any flags (%08x)\n", flags);
 522         *sent = pSSL_write(connection->ssl_s, msg, len);
 523         if (*sent < 1 && len)
 524             return FALSE;
 525         return TRUE;
 526 #else
 527         return FALSE;
 528 #endif
 529     }
 530 }
 531
 532 /******************************************************************************
 533  * NETCON_recv
 534  * Basically calls 'recv()' unless we should use SSL
 535  * number of chars received is put in *recvd
 536  */
 537 BOOL NETCON_recv(WININET_NETCONNECTION *connection, void *buf, size_t len, int flags,
 538                 int *recvd /* out */)
 539 {
 540     *recvd = 0;
 541     if (!NETCON_connected(connection)) return FALSE;
 542     if (!len)
 543         return TRUE;
 544     if (!connection->useSSL)
 545     {
 546         *recvd = recv(connection->socketFD, buf, len, flags);
 547         if (*recvd == -1)
 548         {
 549             INTERNET_SetLastError(sock_get_error(errno));
 550             return FALSE;
 551         }
 552         return TRUE;
 553     }
 554     else
 555     {
 556 #ifdef SONAME_LIBSSL
 557         *recvd = pSSL_read(connection->ssl_s, buf, len);
 558         return *recvd > 0 || !len;
 559 #else
 560         return FALSE;
 561 #endif
 562     }
 563 }
 564
 565 /******************************************************************************
 566  * NETCON_query_data_available
 567  * Returns the number of bytes of peeked data plus the number of bytes of
 568  * queued, but unread data.
 569  */
 570 BOOL NETCON_query_data_available(WININET_NETCONNECTION *connection, DWORD *available)
 571 {
 572     *available = 0;
 573     if (!NETCON_connected(connection))
 574         return FALSE;
 575
 576     if (!connection->useSSL)
 577     {
 578 #ifdef FIONREAD
 579         int unread;
 580         int retval = ioctlsocket(connection->socketFD, FIONREAD, &unread);
 581         if (!retval)
 582         {
 583             TRACE("%d bytes of queued, but unread data\n", unread);
 584             *available += unread;
 585         }
 586 #endif
 587     }
 588     else
 589     {
 590 #ifdef SONAME_LIBSSL
 591         *available = pSSL_pending(connection->ssl_s);
 592 #endif
 593     }
 594     return TRUE;
 595 }
 596
 597 LPCVOID NETCON_GetCert(WININET_NETCONNECTION *connection)
 598 {
 599 #ifdef SONAME_LIBSSL
 600     X509* cert;
 601     unsigned char* buffer,*p;
 602     INT len;
 603     BOOL malloced = FALSE;
 604     LPCVOID r = NULL;
 605
 606     if (!connection->useSSL)
 607         return NULL;
 608
 609     cert = pSSL_get_peer_certificate(connection->ssl_s);
 610     p = NULL;
 611     len = pi2d_X509(cert,&p);
 612     /*
 613      * SSL 0.9.7 and above malloc the buffer if it is null.
 614      * however earlier version do not and so we would need to alloc the buffer.
 615      *
 616      * see the i2d_X509 man page for more details.
 617      */
 618     if (!p)
 619     {
 620         buffer = HeapAlloc(GetProcessHeap(),0,len);
 621         p = buffer;
 622         len = pi2d_X509(cert,&p);
 623     }
 624     else
 625     {
 626         buffer = p;
 627         malloced = TRUE;
 628     }
 629
 630     r = CertCreateCertificateContext(X509_ASN_ENCODING,buffer,len);
 631
 632     if (malloced)
 633         free(buffer);
 634     else
 635         HeapFree(GetProcessHeap(),0,buffer);
 636
 637     return r;
 638 #else
 639     return NULL;
 640 #endif
 641 }
 642
 643 DWORD NETCON_set_timeout(WININET_NETCONNECTION *connection, BOOL send, int value)
 644 {
 645     int result;
 646     struct timeval tv;
 647
 648     /* FIXME: we should probably store the timeout in the connection to set
 649      * when we do connect */
 650     if (!NETCON_connected(connection))
 651         return ERROR_SUCCESS;
 652
 653     /* value is in milliseconds, convert to struct timeval */
 654     tv.tv_sec = value / 1000;
 655     tv.tv_usec = (value % 1000) * 1000;
 656
 657     result = setsockopt(connection->socketFD, SOL_SOCKET,
 658                         send ? SO_SNDTIMEO : SO_RCVTIMEO, (void*)&tv,
 659                         sizeof(tv));
 660
 661     if (result == -1)
 662     {
 663         WARN("setsockopt failed (%s)\n", strerror(errno));
 664         return sock_get_error(errno);
 665     }
 666
 667     return ERROR_SUCCESS;
 668 }