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 #ifdef HAVE_POLL_H
  27 #include <poll.h>
  28 #endif
  29 #ifdef HAVE_SYS_POLL_H
  30 # include <sys/poll.h>
  31 #endif
  32 #ifdef HAVE_SYS_TIME_H
  33 # include <sys/time.h>
  34 #endif
  35 #include <sys/types.h>
  36 #ifdef HAVE_SYS_SOCKET_H
  37 # include <sys/socket.h>
  38 #endif
  39 #ifdef HAVE_UNISTD_H
  40 # include <unistd.h>
  41 #endif
  42 #ifdef HAVE_SYS_IOCTL_H
  43 # include <sys/ioctl.h>
  44 #endif
  45 #include <stdarg.h>
  46 #include <stdlib.h>
  47 #include <string.h>
  48 #include <stdio.h>
  49 #include <errno.h>
  50
  51 #include "wine/library.h"
  52 #include "windef.h"
  53 #include "winbase.h"
  54 #include "wininet.h"
  55 #include "winerror.h"
  56 #include "wincrypt.h"
  57
  58 #include "wine/debug.h"
  59 #include "internet.h"
  60
  61 /* To avoid conflicts with the Unix socket headers. we only need it for
  62  * the error codes anyway. */
  63 #define USE_WS_PREFIX
  64 #include "winsock2.h"
  65
  66 #define RESPONSE_TIMEOUT        30            /* FROM internet.c */
  67
  68
  69 WINE_DEFAULT_DEBUG_CHANNEL(wininet);
  70
  71 /* FIXME!!!!!!
  72  *    This should use winsock - To use winsock the functions will have to change a bit
  73  *        as they are designed for unix sockets.
  74  *    SSL stuff should use crypt32.dll
  75  */
  76
  77 #ifdef SONAME_LIBSSL
  78
  79 #include <openssl/err.h>
  80
  81 static void *OpenSSL_ssl_handle;
  82 static void *OpenSSL_crypto_handle;
  83
  84 static SSL_METHOD *meth;
  85 static SSL_CTX *ctx;
  86
  87 #define MAKE_FUNCPTR(f) static typeof(f) * p##f
  88
  89 /* OpenSSL functions that we use */
  90 MAKE_FUNCPTR(SSL_library_init);
  91 MAKE_FUNCPTR(SSL_load_error_strings);
  92 MAKE_FUNCPTR(SSLv23_method);
  93 MAKE_FUNCPTR(SSL_CTX_new);
  94 MAKE_FUNCPTR(SSL_new);
  95 MAKE_FUNCPTR(SSL_free);
  96 MAKE_FUNCPTR(SSL_set_fd);
  97 MAKE_FUNCPTR(SSL_connect);
  98 MAKE_FUNCPTR(SSL_shutdown);
  99 MAKE_FUNCPTR(SSL_write);
 100 MAKE_FUNCPTR(SSL_read);
 101 MAKE_FUNCPTR(SSL_get_verify_result);
 102 MAKE_FUNCPTR(SSL_get_peer_certificate);
 103 MAKE_FUNCPTR(SSL_CTX_get_timeout);
 104 MAKE_FUNCPTR(SSL_CTX_set_timeout);
 105 MAKE_FUNCPTR(SSL_CTX_set_default_verify_paths);
 106 MAKE_FUNCPTR(i2d_X509);
 107
 108 /* OpenSSL's libcrypto functions that we use */
 109 MAKE_FUNCPTR(BIO_new_fp);
 110 MAKE_FUNCPTR(ERR_get_error);
 111 MAKE_FUNCPTR(ERR_error_string);
 112 #undef MAKE_FUNCPTR
 113
 114 #endif
 115
 116 BOOL NETCON_init(WININET_NETCONNECTION *connection, BOOL useSSL)
 117 {
 118     connection->useSSL = FALSE;
 119     connection->socketFD = -1;
 120     if (useSSL)
 121     {
 122 #ifdef SONAME_LIBSSL
 123         TRACE("using SSL connection\n");
 124         if (OpenSSL_ssl_handle) /* already initialized everything */
 125             return TRUE;
 126         OpenSSL_ssl_handle = wine_dlopen(SONAME_LIBSSL, RTLD_NOW, NULL, 0);
 127         if (!OpenSSL_ssl_handle)
 128         {
 129             ERR("trying to use a SSL connection, but couldn't load %s. Expect trouble.\n",
 130                 SONAME_LIBSSL);
 131             INTERNET_SetLastError(ERROR_INTERNET_SECURITY_CHANNEL_ERROR);
 132             return FALSE;
 133         }
 134         OpenSSL_crypto_handle = wine_dlopen(SONAME_LIBCRYPTO, RTLD_NOW, NULL, 0);
 135         if (!OpenSSL_crypto_handle)
 136         {
 137             ERR("trying to use a SSL connection, but couldn't load %s. Expect trouble.\n",
 138                 SONAME_LIBCRYPTO);
 139             INTERNET_SetLastError(ERROR_INTERNET_SECURITY_CHANNEL_ERROR);
 140             return FALSE;
 141         }
 142
 143         /* mmm nice ugly macroness */
 144 #define DYNSSL(x) \
 145     p##x = wine_dlsym(OpenSSL_ssl_handle, #x, NULL, 0); \
 146     if (!p##x) \
 147     { \
 148         ERR("failed to load symbol %s\n", #x); \
 149         INTERNET_SetLastError(ERROR_INTERNET_SECURITY_CHANNEL_ERROR); \
 150         return FALSE; \
 151     }
 152
 153         DYNSSL(SSL_library_init);
 154         DYNSSL(SSL_load_error_strings);
 155         DYNSSL(SSLv23_method);
 156         DYNSSL(SSL_CTX_new);
 157         DYNSSL(SSL_new);
 158         DYNSSL(SSL_free);
 159         DYNSSL(SSL_set_fd);
 160         DYNSSL(SSL_connect);
 161         DYNSSL(SSL_shutdown);
 162         DYNSSL(SSL_write);
 163         DYNSSL(SSL_read);
 164         DYNSSL(SSL_get_verify_result);
 165         DYNSSL(SSL_get_peer_certificate);
 166         DYNSSL(SSL_CTX_get_timeout);
 167         DYNSSL(SSL_CTX_set_timeout);
 168         DYNSSL(SSL_CTX_set_default_verify_paths);
 169         DYNSSL(i2d_X509);
 170 #undef DYNSSL
 171
 172 #define DYNCRYPTO(x) \
 173     p##x = wine_dlsym(OpenSSL_crypto_handle, #x, NULL, 0); \
 174     if (!p##x) \
 175     { \
 176         ERR("failed to load symbol %s\n", #x); \
 177         INTERNET_SetLastError(ERROR_INTERNET_SECURITY_CHANNEL_ERROR); \
 178         return FALSE; \
 179     }
 180         DYNCRYPTO(BIO_new_fp);
 181         DYNCRYPTO(ERR_get_error);
 182         DYNCRYPTO(ERR_error_string);
 183 #undef DYNCRYPTO
 184
 185         pSSL_library_init();
 186         pSSL_load_error_strings();
 187         pBIO_new_fp(stderr, BIO_NOCLOSE); /* FIXME: should use winedebug stuff */
 188
 189         meth = pSSLv23_method();
 190         connection->peek_msg = NULL;
 191         connection->peek_msg_mem = NULL;
 192 #else
 193         FIXME("can't use SSL, not compiled in.\n");
 194         INTERNET_SetLastError(ERROR_INTERNET_SECURITY_CHANNEL_ERROR);
 195         return FALSE;
 196 #endif
 197     }
 198     return TRUE;
 199 }
 200
 201 BOOL NETCON_connected(WININET_NETCONNECTION *connection)
 202 {
 203     if (connection->socketFD == -1)
 204         return FALSE;
 205     else
 206         return TRUE;
 207 }
 208
 209 /* translate a unix error code into a winsock one */
 210 static int sock_get_error( int err )
 211 {
 212 #if !defined(__MINGW32__) && !defined (_MSC_VER)
 213     switch (err)
 214     {
 215         case EINTR:             return WSAEINTR;
 216         case EBADF:             return WSAEBADF;
 217         case EPERM:
 218         case EACCES:            return WSAEACCES;
 219         case EFAULT:            return WSAEFAULT;
 220         case EINVAL:            return WSAEINVAL;
 221         case EMFILE:            return WSAEMFILE;
 222         case EWOULDBLOCK:       return WSAEWOULDBLOCK;
 223         case EINPROGRESS:       return WSAEINPROGRESS;
 224         case EALREADY:          return WSAEALREADY;
 225         case ENOTSOCK:          return WSAENOTSOCK;
 226         case EDESTADDRREQ:      return WSAEDESTADDRREQ;
 227         case EMSGSIZE:          return WSAEMSGSIZE;
 228         case EPROTOTYPE:        return WSAEPROTOTYPE;
 229         case ENOPROTOOPT:       return WSAENOPROTOOPT;
 230         case EPROTONOSUPPORT:   return WSAEPROTONOSUPPORT;
 231         case ESOCKTNOSUPPORT:   return WSAESOCKTNOSUPPORT;
 232         case EOPNOTSUPP:        return WSAEOPNOTSUPP;
 233         case EPFNOSUPPORT:      return WSAEPFNOSUPPORT;
 234         case EAFNOSUPPORT:      return WSAEAFNOSUPPORT;
 235         case EADDRINUSE:        return WSAEADDRINUSE;
 236         case EADDRNOTAVAIL:     return WSAEADDRNOTAVAIL;
 237         case ENETDOWN:          return WSAENETDOWN;
 238         case ENETUNREACH:       return WSAENETUNREACH;
 239         case ENETRESET:         return WSAENETRESET;
 240         case ECONNABORTED:      return WSAECONNABORTED;
 241         case EPIPE:
 242         case ECONNRESET:        return WSAECONNRESET;
 243         case ENOBUFS:           return WSAENOBUFS;
 244         case EISCONN:           return WSAEISCONN;
 245         case ENOTCONN:          return WSAENOTCONN;
 246         case ESHUTDOWN:         return WSAESHUTDOWN;
 247         case ETOOMANYREFS:      return WSAETOOMANYREFS;
 248         case ETIMEDOUT:         return WSAETIMEDOUT;
 249         case ECONNREFUSED:      return WSAECONNREFUSED;
 250         case ELOOP:             return WSAELOOP;
 251         case ENAMETOOLONG:      return WSAENAMETOOLONG;
 252         case EHOSTDOWN:         return WSAEHOSTDOWN;
 253         case EHOSTUNREACH:      return WSAEHOSTUNREACH;
 254         case ENOTEMPTY:         return WSAENOTEMPTY;
 255 #ifdef EPROCLIM
 256         case EPROCLIM:          return WSAEPROCLIM;
 257 #endif
 258 #ifdef EUSERS
 259         case EUSERS:            return WSAEUSERS;
 260 #endif
 261 #ifdef EDQUOT
 262         case EDQUOT:            return WSAEDQUOT;
 263 #endif
 264 #ifdef ESTALE
 265         case ESTALE:            return WSAESTALE;
 266 #endif
 267 #ifdef EREMOTE
 268         case EREMOTE:           return WSAEREMOTE;
 269 #endif
 270     default: errno=err; perror("sock_set_error"); return WSAEFAULT;
 271     }
 272 #endif
 273     return err;
 274 }
 275
 276 /******************************************************************************
 277  * NETCON_create
 278  * Basically calls 'socket()'
 279  */
 280 BOOL NETCON_create(WININET_NETCONNECTION *connection, int domain,
 281               int type, int protocol)
 282 {
 283 #ifdef SONAME_LIBSSL
 284     if (connection->useSSL)
 285         return FALSE;
 286 #endif
 287
 288     connection->socketFD = socket(domain, type, protocol);
 289     if (connection->socketFD == -1)
 290     {
 291         INTERNET_SetLastError(sock_get_error(errno));
 292         return FALSE;
 293     }
 294     return TRUE;
 295 }
 296
 297 /******************************************************************************
 298  * NETCON_close
 299  * Basically calls 'close()' unless we should use SSL
 300  */
 301 BOOL NETCON_close(WININET_NETCONNECTION *connection)
 302 {
 303     int result;
 304
 305     if (!NETCON_connected(connection)) return FALSE;
 306
 307 #ifdef SONAME_LIBSSL
 308     if (connection->useSSL)
 309     {
 310         HeapFree(GetProcessHeap(),0,connection->peek_msg_mem);
 311         connection->peek_msg = NULL;
 312         connection->peek_msg_mem = NULL;
 313         connection->peek_len = 0;
 314
 315         pSSL_shutdown(connection->ssl_s);
 316         pSSL_free(connection->ssl_s);
 317         connection->ssl_s = NULL;
 318
 319         connection->useSSL = FALSE;
 320     }
 321 #endif
 322
 323     result = closesocket(connection->socketFD);
 324     connection->socketFD = -1;
 325
 326     if (result == -1)
 327     {
 328         INTERNET_SetLastError(sock_get_error(errno));
 329         return FALSE;
 330     }
 331     return TRUE;
 332 }
 333 #ifdef SONAME_LIBSSL
 334 static BOOL check_hostname(X509 *cert, char *hostname)
 335 {
 336     /* FIXME: implement */
 337     return TRUE;
 338 }
 339 #endif
 340 /******************************************************************************
 341  * NETCON_secure_connect
 342  * Initiates a secure connection over an existing plaintext connection.
 343  */
 344 BOOL NETCON_secure_connect(WININET_NETCONNECTION *connection, LPCWSTR hostname)
 345 {
 346 #ifdef SONAME_LIBSSL
 347     long verify_res;
 348     X509 *cert;
 349     int len;
 350     char *hostname_unix;
 351
 352     /* can't connect if we are already connected */
 353     if (connection->useSSL)
 354     {
 355         ERR("already connected\n");
 356         return FALSE;
 357     }
 358
 359     ctx = pSSL_CTX_new(meth);
 360     if (!pSSL_CTX_set_default_verify_paths(ctx))
 361     {
 362         ERR("SSL_CTX_set_default_verify_paths failed: %s\n",
 363             pERR_error_string(pERR_get_error(), 0));
 364         INTERNET_SetLastError(ERROR_OUTOFMEMORY);
 365         return FALSE;
 366     }
 367     connection->ssl_s = pSSL_new(ctx);
 368     if (!connection->ssl_s)
 369     {
 370         ERR("SSL_new failed: %s\n",
 371             pERR_error_string(pERR_get_error(), 0));
 372         INTERNET_SetLastError(ERROR_OUTOFMEMORY);
 373         goto fail;
 374     }
 375
 376     if (!pSSL_set_fd(connection->ssl_s, connection->socketFD))
 377     {
 378         ERR("SSL_set_fd failed: %s\n",
 379             pERR_error_string(pERR_get_error(), 0));
 380         INTERNET_SetLastError(ERROR_INTERNET_SECURITY_CHANNEL_ERROR);
 381         goto fail;
 382     }
 383
 384     if (pSSL_connect(connection->ssl_s) <= 0)
 385     {
 386         ERR("SSL_connect failed: %s\n",
 387             pERR_error_string(pERR_get_error(), 0));
 388         INTERNET_SetLastError(ERROR_INTERNET_SECURITY_CHANNEL_ERROR);
 389         goto fail;
 390     }
 391     cert = pSSL_get_peer_certificate(connection->ssl_s);
 392     if (!cert)
 393     {
 394         ERR("no certificate for server %s\n", debugstr_w(hostname));
 395         /* FIXME: is this the best error? */
 396         INTERNET_SetLastError(ERROR_INTERNET_INVALID_CA);
 397         goto fail;
 398     }
 399     verify_res = pSSL_get_verify_result(connection->ssl_s);
 400     if (verify_res != X509_V_OK)
 401     {
 402         ERR("couldn't verify the security of the connection, %ld\n", verify_res);
 403         /* FIXME: we should set an error and return, but we only warn at
 404          * the moment */
 405     }
 406
 407     len = WideCharToMultiByte(CP_UNIXCP, 0, hostname, -1, NULL, 0, NULL, NULL);
 408     hostname_unix = HeapAlloc(GetProcessHeap(), 0, len);
 409     if (!hostname_unix)
 410     {
 411         INTERNET_SetLastError(ERROR_OUTOFMEMORY);
 412         goto fail;
 413     }
 414     WideCharToMultiByte(CP_UNIXCP, 0, hostname, -1, hostname_unix, len, NULL, NULL);
 415
 416     if (!check_hostname(cert, hostname_unix))
 417     {
 418         HeapFree(GetProcessHeap(), 0, hostname_unix);
 419         INTERNET_SetLastError(ERROR_INTERNET_SEC_CERT_CN_INVALID);
 420         goto fail;
 421     }
 422
 423     HeapFree(GetProcessHeap(), 0, hostname_unix);
 424     connection->useSSL = TRUE;
 425     return TRUE;
 426
 427 fail:
 428     if (connection->ssl_s)
 429     {
 430         pSSL_shutdown(connection->ssl_s);
 431         pSSL_free(connection->ssl_s);
 432         connection->ssl_s = NULL;
 433     }
 434 #endif
 435     return FALSE;
 436 }
 437
 438 /******************************************************************************
 439  * NETCON_connect
 440  * Connects to the specified address.
 441  */
 442 BOOL NETCON_connect(WININET_NETCONNECTION *connection, const struct sockaddr *serv_addr,
 443                     unsigned int addrlen)
 444 {
 445     int result;
 446
 447     if (!NETCON_connected(connection)) return FALSE;
 448
 449     result = connect(connection->socketFD, serv_addr, addrlen);
 450     if (result == -1)
 451     {
 452         WARN("Unable to connect to host (%s)\n", strerror(errno));
 453         INTERNET_SetLastError(sock_get_error(errno));
 454
 455         closesocket(connection->socketFD);
 456         connection->socketFD = -1;
 457         return FALSE;
 458     }
 459
 460     return TRUE;
 461 }
 462
 463 /******************************************************************************
 464  * NETCON_send
 465  * Basically calls 'send()' unless we should use SSL
 466  * number of chars send is put in *sent
 467  */
 468 BOOL NETCON_send(WININET_NETCONNECTION *connection, const void *msg, size_t len, int flags,
 469                 int *sent /* out */)
 470 {
 471     if (!NETCON_connected(connection)) return FALSE;
 472     if (!connection->useSSL)
 473     {
 474         *sent = send(connection->socketFD, msg, len, flags);
 475         if (*sent == -1)
 476         {
 477             INTERNET_SetLastError(sock_get_error(errno));
 478             return FALSE;
 479         }
 480         return TRUE;
 481     }
 482     else
 483     {
 484 #ifdef SONAME_LIBSSL
 485         if (flags)
 486             FIXME("SSL_write doesn't support any flags (%08x)\n", flags);
 487         *sent = pSSL_write(connection->ssl_s, msg, len);
 488         if (*sent < 1 && len)
 489             return FALSE;
 490         return TRUE;
 491 #else
 492         return FALSE;
 493 #endif
 494     }
 495 }
 496
 497 /******************************************************************************
 498  * NETCON_recv
 499  * Basically calls 'recv()' unless we should use SSL
 500  * number of chars received is put in *recvd
 501  */
 502 BOOL NETCON_recv(WININET_NETCONNECTION *connection, void *buf, size_t len, int flags,
 503                 int *recvd /* out */)
 504 {
 505     *recvd = 0;
 506     if (!NETCON_connected(connection)) return FALSE;
 507     if (!len)
 508         return TRUE;
 509     if (!connection->useSSL)
 510     {
 511         *recvd = recv(connection->socketFD, buf, len, flags);
 512         if (*recvd == -1)
 513         {
 514             INTERNET_SetLastError(sock_get_error(errno));
 515             return FALSE;
 516         }
 517         return TRUE;
 518     }
 519     else
 520     {
 521 #ifdef SONAME_LIBSSL
 522         if (flags & ~(MSG_PEEK|MSG_WAITALL))
 523             FIXME("SSL_read does not support the following flag: %08x\n", flags);
 524
 525         /* this ugly hack is all for MSG_PEEK. eww gross */
 526         if (flags & MSG_PEEK && !connection->peek_msg)
 527         {
 528             connection->peek_msg = connection->peek_msg_mem = HeapAlloc(GetProcessHeap(), 0, (sizeof(char) * len) + 1);
 529         }
 530         else if (flags & MSG_PEEK && connection->peek_msg)
 531         {
 532             if (len < connection->peek_len)
 533                 FIXME("buffer isn't big enough. Do the expect us to wrap?\n");
 534             *recvd = min(len, connection->peek_len);
 535             memcpy(buf, connection->peek_msg, *recvd);
 536             return TRUE;
 537         }
 538         else if (connection->peek_msg)
 539         {
 540             *recvd = min(len, connection->peek_len);
 541             memcpy(buf, connection->peek_msg, *recvd);
 542             connection->peek_len -= *recvd;
 543             connection->peek_msg += *recvd;
 544             if (connection->peek_len == 0)
 545             {
 546                 HeapFree(GetProcessHeap(), 0, connection->peek_msg_mem);
 547                 connection->peek_msg_mem = NULL;
 548                 connection->peek_msg = NULL;
 549             }
 550             /* check if we got enough data from the peek buffer */
 551             if (!(flags & MSG_WAITALL) || (*recvd == len))
 552                 return TRUE;
 553             /* otherwise, fall through */
 554         }
 555         *recvd += pSSL_read(connection->ssl_s, (char*)buf + *recvd, len - *recvd);
 556         if (flags & MSG_PEEK) /* must copy stuff into buffer */
 557         {
 558             connection->peek_len = *recvd;
 559             if (!*recvd)
 560             {
 561                 HeapFree(GetProcessHeap(), 0, connection->peek_msg_mem);
 562                 connection->peek_msg_mem = NULL;
 563                 connection->peek_msg = NULL;
 564             }
 565             else
 566                 memcpy(connection->peek_msg, buf, *recvd);
 567         }
 568         if (*recvd < 1 && len)
 569             return FALSE;
 570         return TRUE;
 571 #else
 572         return FALSE;
 573 #endif
 574     }
 575 }
 576
 577 /******************************************************************************
 578  * NETCON_query_data_available
 579  * Returns the number of bytes of peeked data plus the number of bytes of
 580  * queued, but unread data.
 581  */
 582 BOOL NETCON_query_data_available(WININET_NETCONNECTION *connection, DWORD *available)
 583 {
 584     *available = 0;
 585     if (!NETCON_connected(connection))
 586         return FALSE;
 587
 588 #ifdef SONAME_LIBSSL
 589     if (connection->peek_msg) *available = connection->peek_len;
 590 #endif
 591
 592 #ifdef FIONREAD
 593     if (!connection->useSSL)
 594     {
 595         int unread;
 596         int retval = ioctlsocket(connection->socketFD, FIONREAD, &unread);
 597         if (!retval)
 598         {
 599             TRACE("%d bytes of queued, but unread data\n", unread);
 600             *available += unread;
 601         }
 602     }
 603 #endif
 604     return TRUE;
 605 }
 606
 607 /******************************************************************************
 608  * NETCON_getNextLine
 609  */
 610 BOOL NETCON_getNextLine(WININET_NETCONNECTION *connection, LPSTR lpszBuffer, LPDWORD dwBuffer)
 611 {
 612
 613     TRACE("\n");
 614
 615     if (!NETCON_connected(connection)) return FALSE;
 616
 617     if (!connection->useSSL)
 618     {
 619         struct pollfd pfd;
 620         BOOL bSuccess = FALSE;
 621         DWORD nRecv = 0;
 622
 623         pfd.fd = connection->socketFD;
 624         pfd.events = POLLIN;
 625
 626         while (nRecv < *dwBuffer)
 627         {
 628             if (poll(&pfd,1, RESPONSE_TIMEOUT * 1000) > 0)
 629             {
 630                 if (recv(connection->socketFD, &lpszBuffer[nRecv], 1, 0) <= 0)
 631                 {
 632                     INTERNET_SetLastError(sock_get_error(errno));
 633                     goto lend;
 634                 }
 635
 636                 if (lpszBuffer[nRecv] == '\n')
 637                 {
 638                     bSuccess = TRUE;
 639                     break;
 640                 }
 641                 if (lpszBuffer[nRecv] != '\r')
 642                     nRecv++;
 643             }
 644             else
 645             {
 646                 INTERNET_SetLastError(ERROR_INTERNET_TIMEOUT);
 647                 goto lend;
 648             }
 649         }
 650
 651     lend:             /* FIXME: don't use labels */
 652         if (bSuccess)
 653         {
 654             lpszBuffer[nRecv++] = '\0';
 655             *dwBuffer = nRecv;
 656             TRACE(":%u %s\n", nRecv, lpszBuffer);
 657             return TRUE;
 658         }
 659         else
 660         {
 661             return FALSE;
 662         }
 663     }
 664     else
 665     {
 666 #ifdef SONAME_LIBSSL
 667         long prev_timeout;
 668         DWORD nRecv = 0;
 669         BOOL success = TRUE;
 670
 671         prev_timeout = pSSL_CTX_get_timeout(ctx);
 672         pSSL_CTX_set_timeout(ctx, RESPONSE_TIMEOUT);
 673
 674         while (nRecv < *dwBuffer)
 675         {
 676             int recv = 1;
 677             if (!NETCON_recv(connection, &lpszBuffer[nRecv], 1, 0, &recv))
 678             {
 679                 INTERNET_SetLastError(ERROR_CONNECTION_ABORTED);
 680                 success = FALSE;
 681             }
 682
 683             if (lpszBuffer[nRecv] == '\n')
 684             {
 685                 success = TRUE;
 686                 break;
 687             }
 688             if (lpszBuffer[nRecv] != '\r')
 689                 nRecv++;
 690         }
 691
 692         pSSL_CTX_set_timeout(ctx, prev_timeout);
 693         if (success)
 694         {
 695             lpszBuffer[nRecv++] = '\0';
 696             *dwBuffer = nRecv;
 697             TRACE("_SSL:%u %s\n", nRecv, lpszBuffer);
 698             return TRUE;
 699         }
 700         return FALSE;
 701 #else
 702         return FALSE;
 703 #endif
 704     }
 705 }
 706
 707
 708 LPCVOID NETCON_GetCert(WININET_NETCONNECTION *connection)
 709 {
 710 #ifdef SONAME_LIBSSL
 711     X509* cert;
 712     unsigned char* buffer,*p;
 713     INT len;
 714     BOOL malloced = FALSE;
 715     LPCVOID r = NULL;
 716
 717     if (!connection->useSSL)
 718         return NULL;
 719
 720     cert = pSSL_get_peer_certificate(connection->ssl_s);
 721     p = NULL;
 722     len = pi2d_X509(cert,&p);
 723     /*
 724      * SSL 0.9.7 and above malloc the buffer if it is null.
 725      * however earlier version do not and so we would need to alloc the buffer.
 726      *
 727      * see the i2d_X509 man page for more details.
 728      */
 729     if (!p)
 730     {
 731         buffer = HeapAlloc(GetProcessHeap(),0,len);
 732         p = buffer;
 733         len = pi2d_X509(cert,&p);
 734     }
 735     else
 736     {
 737         buffer = p;
 738         malloced = TRUE;
 739     }
 740
 741     r = CertCreateCertificateContext(X509_ASN_ENCODING,buffer,len);
 742
 743     if (malloced)
 744         free(buffer);
 745     else
 746         HeapFree(GetProcessHeap(),0,buffer);
 747
 748     return r;
 749 #else
 750     return NULL;
 751 #endif
 752 }
 753
 754 DWORD NETCON_set_timeout(WININET_NETCONNECTION *connection, BOOL send, int value)
 755 {
 756     int result;
 757     struct timeval tv;
 758
 759     /* FIXME: we should probably store the timeout in the connection to set
 760      * when we do connect */
 761     if (!NETCON_connected(connection))
 762         return ERROR_SUCCESS;
 763
 764     /* value is in milliseconds, convert to struct timeval */
 765     tv.tv_sec = value / 1000;
 766     tv.tv_usec = (value % 1000) * 1000;
 767
 768     result = setsockopt(connection->socketFD, SOL_SOCKET,
 769                         send ? SO_SNDTIMEO : SO_RCVTIMEO, &tv,
 770                         sizeof(tv));
 771
 772     if (result == -1)
 773     {
 774         WARN("setsockopt failed (%s)\n", strerror(errno));
 775         return sock_get_error(errno);
 776     }
 777
 778     return ERROR_SUCCESS;
 779 }