19bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels/*************************************************************************** 29bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * _ _ ____ _ 39bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * Project ___| | | | _ \| | 49bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * / __| | | | |_) | | 59bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * | (__| |_| | _ <| |___ 69bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * \___|\___/|_| \_\_____| 79bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 8e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al. 99bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 109bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * This software is licensed as described in the file COPYING, which 119bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * you should have received as part of this distribution. The terms 129bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * are also available at http://curl.haxx.se/docs/copyright.html. 139bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 149bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * You may opt to use, copy, modify, merge, publish, distribute and/or sell 159bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * copies of the Software, and permit persons to whom the Software is 169bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * furnished to do so, under the terms of the COPYING file. 179bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 189bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY 199bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * KIND, either express or implied. 209bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 219bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ***************************************************************************/ 22e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#include "server_setup.h" 239bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 249bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels/* Purpose 259bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 26e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * 1. Accept a TCP connection on a custom port (IPv4 or IPv6), or connect 279bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * to a given (localhost) port. 289bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 299bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 2. Get commands on STDIN. Pass data on to the TCP stream. 309bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * Get data from TCP stream and pass on to STDOUT. 319bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 329bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * This program is made to perform all the socket/stream/connection stuff for 339bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * the test suite's (perl) FTP server. Previously the perl code did all of 349bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * this by its own, but I decided to let this program do the socket layer 359bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * because of several things: 369bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 379bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * o We want the perl code to work with rather old perl installations, thus 389bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * we cannot use recent perl modules or features. 399bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 409bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * o We want IPv6 support for systems that provide it, and doing optional IPv6 419bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * support in perl seems if not impossible so at least awkward. 429bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 439bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * o We want FTP-SSL support, which means that a connection that starts with 449bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * plain sockets needs to be able to "go SSL" in the midst. This would also 459bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * require some nasty perl stuff I'd rather avoid. 469bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 479bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * (Source originally based on sws.c) 489bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels */ 499bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 509bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels/* 519bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * Signal handling notes for sockfilt 529bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * ---------------------------------- 539bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 549bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * This program is a single-threaded process. 559bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 569bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * This program is intended to be highly portable and as such it must be kept as 579bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * simple as possible, due to this the only signal handling mechanisms used will 589bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * be those of ANSI C, and used only in the most basic form which is good enough 599bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * for the purpose of this program. 609bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 619bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * For the above reason and the specific needs of this program signals SIGHUP, 629bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * SIGPIPE and SIGALRM will be simply ignored on systems where this can be done. 639bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * If possible, signals SIGINT and SIGTERM will be handled by this program as an 649bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * indication to cleanup and finish execution as soon as possible. This will be 659bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * achieved with a single signal handler 'exit_signal_handler' for both signals. 669bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 679bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * The 'exit_signal_handler' upon the first SIGINT or SIGTERM received signal 689bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * will just set to one the global var 'got_exit_signal' storing in global var 699bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 'exit_signal' the signal that triggered this change. 709bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 719bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * Nothing fancy that could introduce problems is used, the program at certain 729bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * points in its normal flow checks if var 'got_exit_signal' is set and in case 739bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * this is true it just makes its way out of loops and functions in structured 749bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * and well behaved manner to achieve proper program cleanup and termination. 759bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * 769bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * Even with the above mechanism implemented it is worthwile to note that other 779bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * signals might still be received, or that there might be systems on which it 789bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * is not possible to trap and ignore some of the above signals. This implies 799bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * that for increased portability and reliability the program must be coded as 809bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * if no signal was being ignored or handled at all. Enjoy it! 819bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels */ 829bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 839bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef HAVE_SIGNAL_H 849bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#include <signal.h> 859bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 869bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef HAVE_NETINET_IN_H 879bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#include <netinet/in.h> 889bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 899bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef HAVE_ARPA_INET_H 909bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#include <arpa/inet.h> 919bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 929bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef HAVE_NETDB_H 939bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#include <netdb.h> 949bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 959bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 969bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#define ENABLE_CURLX_PRINTF 979bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels/* make the curlx header define all printf() functions to use the curlx_* 989bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels versions instead */ 999bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#include "curlx.h" /* from the private lib dir */ 1009bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#include "getpart.h" 1019bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#include "inet_pton.h" 1029bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#include "util.h" 103e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#include "server_sockaddr.h" 104e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#include "warnless.h" 1059bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1069bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels/* include memdebug.h last */ 1079bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#include "memdebug.h" 1089bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 109e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#ifdef USE_WINSOCK 110e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#undef EINTR 111e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#define EINTR 4 /* errno.h value */ 112e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#undef EAGAIN 113e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#define EAGAIN 11 /* errno.h value */ 114e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#undef ENOMEM 115e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#define ENOMEM 12 /* errno.h value */ 116e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#undef EINVAL 117e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#define EINVAL 22 /* errno.h value */ 118e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#endif 119e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 1209bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#define DEFAULT_PORT 8999 1219bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1229bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifndef DEFAULT_LOGFILE 1239bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#define DEFAULT_LOGFILE "log/sockfilt.log" 1249bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 1259bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1269bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsconst char *serverlogfile = DEFAULT_LOGFILE; 1279bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1289bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic bool verbose = FALSE; 129e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNETstatic bool bind_only = FALSE; 1309bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef ENABLE_IPV6 1319bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic bool use_ipv6 = FALSE; 1329bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 1339bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic const char *ipv_inuse = "IPv4"; 1349bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic unsigned short port = DEFAULT_PORT; 1359bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic unsigned short connectport = 0; /* if non-zero, we activate this mode */ 1369bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1379bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsenum sockmode { 1389bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels PASSIVE_LISTEN, /* as a server waiting for connections */ 1399bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels PASSIVE_CONNECT, /* as a server, connected to a client */ 1409bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ACTIVE, /* as a client, connected to a server */ 1419bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ACTIVE_DISCONNECT /* as a client, disconnected from server */ 1429bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels}; 1439bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1449bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels/* do-nothing macro replacement for systems which lack siginterrupt() */ 1459bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1469bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifndef HAVE_SIGINTERRUPT 1479bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#define siginterrupt(x,y) do {} while(0) 1489bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 1499bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1509bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels/* vars used to keep around previous signal handlers */ 1519bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1529bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelstypedef RETSIGTYPE (*SIGHANDLER_T)(int); 1539bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1549bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef SIGHUP 1559bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic SIGHANDLER_T old_sighup_handler = SIG_ERR; 1569bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 1579bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1589bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef SIGPIPE 1599bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic SIGHANDLER_T old_sigpipe_handler = SIG_ERR; 1609bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 1619bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1629bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef SIGALRM 1639bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic SIGHANDLER_T old_sigalrm_handler = SIG_ERR; 1649bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 1659bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1669bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef SIGINT 1679bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic SIGHANDLER_T old_sigint_handler = SIG_ERR; 1689bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 1699bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1709bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef SIGTERM 1719bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic SIGHANDLER_T old_sigterm_handler = SIG_ERR; 1729bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 1739bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 174e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#if defined(SIGBREAK) && defined(WIN32) 175e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNETstatic SIGHANDLER_T old_sigbreak_handler = SIG_ERR; 176e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#endif 177e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 1789bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels/* var which if set indicates that the program should finish execution */ 1799bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1809bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas EckelsSIG_ATOMIC_T got_exit_signal = 0; 1819bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1829bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels/* if next is set indicates the first signal handled in exit_signal_handler */ 1839bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1849bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic volatile int exit_signal = 0; 1859bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1869bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels/* signal handler that will be triggered to indicate that the program 1879bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels should finish its execution in a controlled manner as soon as possible. 1889bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels The first time this is called it will set got_exit_signal to one and 1899bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels store in exit_signal the signal that triggered its execution. */ 1909bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1919bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic RETSIGTYPE exit_signal_handler(int signum) 1929bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels{ 193e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET int old_errno = errno; 1949bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(got_exit_signal == 0) { 1959bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels got_exit_signal = 1; 1969bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels exit_signal = signum; 1979bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 1989bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels (void)signal(signum, exit_signal_handler); 199e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET errno = old_errno; 2009bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels} 2019bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 2029bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic void install_signal_handlers(void) 2039bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels{ 2049bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef SIGHUP 2059bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* ignore SIGHUP signal */ 2069bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if((old_sighup_handler = signal(SIGHUP, SIG_IGN)) == SIG_ERR) 207e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET logmsg("cannot install SIGHUP handler: %s", strerror(errno)); 2089bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 2099bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef SIGPIPE 2109bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* ignore SIGPIPE signal */ 2119bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if((old_sigpipe_handler = signal(SIGPIPE, SIG_IGN)) == SIG_ERR) 212e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET logmsg("cannot install SIGPIPE handler: %s", strerror(errno)); 2139bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 2149bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef SIGALRM 2159bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* ignore SIGALRM signal */ 2169bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if((old_sigalrm_handler = signal(SIGALRM, SIG_IGN)) == SIG_ERR) 217e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET logmsg("cannot install SIGALRM handler: %s", strerror(errno)); 2189bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 2199bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef SIGINT 2209bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* handle SIGINT signal with our exit_signal_handler */ 2219bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if((old_sigint_handler = signal(SIGINT, exit_signal_handler)) == SIG_ERR) 222e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET logmsg("cannot install SIGINT handler: %s", strerror(errno)); 2239bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else 2249bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels siginterrupt(SIGINT, 1); 2259bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 2269bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef SIGTERM 2279bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* handle SIGTERM signal with our exit_signal_handler */ 2289bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if((old_sigterm_handler = signal(SIGTERM, exit_signal_handler)) == SIG_ERR) 229e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET logmsg("cannot install SIGTERM handler: %s", strerror(errno)); 2309bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else 2319bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels siginterrupt(SIGTERM, 1); 2329bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 233e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#if defined(SIGBREAK) && defined(WIN32) 234e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* handle SIGBREAK signal with our exit_signal_handler */ 235e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if((old_sigbreak_handler = signal(SIGBREAK, exit_signal_handler)) == SIG_ERR) 236e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET logmsg("cannot install SIGBREAK handler: %s", strerror(errno)); 237e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else 238e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET siginterrupt(SIGBREAK, 1); 239e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#endif 2409bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels} 2419bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 2429bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic void restore_signal_handlers(void) 2439bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels{ 2449bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef SIGHUP 2459bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(SIG_ERR != old_sighup_handler) 2469bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels (void)signal(SIGHUP, old_sighup_handler); 2479bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 2489bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef SIGPIPE 2499bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(SIG_ERR != old_sigpipe_handler) 2509bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels (void)signal(SIGPIPE, old_sigpipe_handler); 2519bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 2529bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef SIGALRM 2539bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(SIG_ERR != old_sigalrm_handler) 2549bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels (void)signal(SIGALRM, old_sigalrm_handler); 2559bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 2569bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef SIGINT 2579bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(SIG_ERR != old_sigint_handler) 2589bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels (void)signal(SIGINT, old_sigint_handler); 2599bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 2609bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef SIGTERM 2619bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(SIG_ERR != old_sigterm_handler) 2629bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels (void)signal(SIGTERM, old_sigterm_handler); 2639bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 264e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#if defined(SIGBREAK) && defined(WIN32) 265e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(SIG_ERR != old_sigbreak_handler) 266e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET (void)signal(SIGBREAK, old_sigbreak_handler); 267e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#endif 268e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET} 269e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 270e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#ifdef WIN32 271e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET/* 272e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * read-wrapper to support reading from stdin on Windows. 273e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET */ 274e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNETstatic ssize_t read_wincon(int fd, void *buf, size_t count) 275e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET{ 276e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET HANDLE handle = NULL; 277e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET DWORD mode, rcount = 0; 278e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET BOOL success; 279e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 280e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(fd == fileno(stdin)) { 281e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handle = GetStdHandle(STD_INPUT_HANDLE); 282e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 283e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else { 284e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return read(fd, buf, count); 285e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 286e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 287e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(GetConsoleMode(handle, &mode)) { 288e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET success = ReadConsole(handle, buf, curlx_uztoul(count), &rcount, NULL); 289e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 290e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else { 291e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET success = ReadFile(handle, buf, curlx_uztoul(count), &rcount, NULL); 292e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 293e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(success) { 294e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return rcount; 295e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 296e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 297e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET errno = GetLastError(); 298e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return -1; 299e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET} 300e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#undef read 301e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#define read(a,b,c) read_wincon(a,b,c) 302e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 303e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET/* 304e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * write-wrapper to support writing to stdout and stderr on Windows. 305e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET */ 306e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNETstatic ssize_t write_wincon(int fd, const void *buf, size_t count) 307e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET{ 308e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET HANDLE handle = NULL; 309e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET DWORD mode, wcount = 0; 310e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET BOOL success; 311e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 312e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(fd == fileno(stdout)) { 313e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handle = GetStdHandle(STD_OUTPUT_HANDLE); 314e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 315e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else if(fd == fileno(stderr)) { 316e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handle = GetStdHandle(STD_ERROR_HANDLE); 317e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 318e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else { 319e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return write(fd, buf, count); 320e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 321e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 322e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(GetConsoleMode(handle, &mode)) { 323e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET success = WriteConsole(handle, buf, curlx_uztoul(count), &wcount, NULL); 324e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 325e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else { 326e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET success = WriteFile(handle, buf, curlx_uztoul(count), &wcount, NULL); 327e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 328e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(success) { 329e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return wcount; 330e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 331e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 332e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET errno = GetLastError(); 333e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return -1; 3349bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels} 335e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#undef write 336e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#define write(a,b,c) write_wincon(a,b,c) 337e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#endif 3389bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 3399bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels/* 3409bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * fullread is a wrapper around the read() function. This will repeat the call 3419bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * to read() until it actually has read the complete number of bytes indicated 3429bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * in nbytes or it fails with a condition that cannot be handled with a simple 3439bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * retry of the read call. 3449bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels */ 3459bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 3469bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic ssize_t fullread(int filedes, void *buffer, size_t nbytes) 3479bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels{ 3489bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels int error; 3499bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ssize_t rc; 3509bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ssize_t nread = 0; 3519bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 3529bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels do { 3539bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels rc = read(filedes, (unsigned char *)buffer + nread, nbytes - nread); 3549bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 3559bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(got_exit_signal) { 3569bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("signalled to die"); 3579bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return -1; 3589bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 3599bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 3609bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(rc < 0) { 361e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET error = errno; 3629bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if((error == EINTR) || (error == EAGAIN)) 3639bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels continue; 364e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET logmsg("reading from file descriptor: %d,", filedes); 365e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET logmsg("unrecoverable read() failure: (%d) %s", 366e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET error, strerror(error)); 3679bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return -1; 3689bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 3699bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 3709bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(rc == 0) { 3719bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("got 0 reading from stdin"); 3729bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return 0; 3739bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 3749bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 3759bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels nread += rc; 3769bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 3779bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } while((size_t)nread < nbytes); 3789bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 3799bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(verbose) 3809bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("read %zd bytes", nread); 3819bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 3829bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return nread; 3839bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels} 3849bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 3859bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels/* 3869bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * fullwrite is a wrapper around the write() function. This will repeat the 3879bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * call to write() until it actually has written the complete number of bytes 3889bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * indicated in nbytes or it fails with a condition that cannot be handled 3899bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * with a simple retry of the write call. 3909bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels */ 3919bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 3929bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic ssize_t fullwrite(int filedes, const void *buffer, size_t nbytes) 3939bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels{ 3949bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels int error; 3959bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ssize_t wc; 3969bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ssize_t nwrite = 0; 3979bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 3989bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels do { 3999bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels wc = write(filedes, (unsigned char *)buffer + nwrite, nbytes - nwrite); 4009bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 4019bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(got_exit_signal) { 4029bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("signalled to die"); 4039bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return -1; 4049bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 4059bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 4069bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(wc < 0) { 407e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET error = errno; 4089bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if((error == EINTR) || (error == EAGAIN)) 4099bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels continue; 410e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET logmsg("writing to file descriptor: %d,", filedes); 411e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET logmsg("unrecoverable write() failure: (%d) %s", 412e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET error, strerror(error)); 4139bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return -1; 4149bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 4159bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 4169bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(wc == 0) { 4179bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("put 0 writing to stdout"); 4189bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return 0; 4199bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 4209bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 4219bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels nwrite += wc; 4229bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 4239bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } while((size_t)nwrite < nbytes); 4249bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 4259bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(verbose) 4269bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("wrote %zd bytes", nwrite); 4279bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 4289bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return nwrite; 4299bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels} 4309bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 4319bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels/* 4329bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * read_stdin tries to read from stdin nbytes into the given buffer. This is a 4339bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * blocking function that will only return TRUE when nbytes have actually been 4349bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * read or FALSE when an unrecoverable error has been detected. Failure of this 4359bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * function is an indication that the sockfilt process should terminate. 4369bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels */ 4379bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 4389bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic bool read_stdin(void *buffer, size_t nbytes) 4399bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels{ 4409bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ssize_t nread = fullread(fileno(stdin), buffer, nbytes); 4419bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(nread != (ssize_t)nbytes) { 4429bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("exiting..."); 4439bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 4449bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 4459bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return TRUE; 4469bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels} 4479bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 4489bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels/* 4499bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * write_stdout tries to write to stdio nbytes from the given buffer. This is a 4509bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * blocking function that will only return TRUE when nbytes have actually been 4519bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * written or FALSE when an unrecoverable error has been detected. Failure of 4529bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * this function is an indication that the sockfilt process should terminate. 4539bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels */ 4549bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 4559bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic bool write_stdout(const void *buffer, size_t nbytes) 4569bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels{ 4579bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ssize_t nwrite = fullwrite(fileno(stdout), buffer, nbytes); 4589bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(nwrite != (ssize_t)nbytes) { 4599bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("exiting..."); 4609bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 4619bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 4629bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return TRUE; 4639bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels} 4649bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 4659bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic void lograw(unsigned char *buffer, ssize_t len) 4669bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels{ 4679bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels char data[120]; 4689bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ssize_t i; 4699bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels unsigned char *ptr = buffer; 4709bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels char *optr = data; 4719bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ssize_t width=0; 4729bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 4739bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels for(i=0; i<len; i++) { 4749bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels switch(ptr[i]) { 4759bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels case '\n': 4769bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sprintf(optr, "\\n"); 4779bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels width += 2; 4789bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels optr += 2; 4799bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels break; 4809bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels case '\r': 4819bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sprintf(optr, "\\r"); 4829bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels width += 2; 4839bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels optr += 2; 4849bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels break; 4859bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels default: 4869bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sprintf(optr, "%c", (ISGRAPH(ptr[i]) || ptr[i]==0x20) ?ptr[i]:'.'); 4879bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels width++; 4889bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels optr++; 4899bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels break; 4909bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 4919bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 4929bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(width>60) { 4939bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("'%s'", data); 4949bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels width = 0; 4959bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels optr = data; 4969bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 4979bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 4989bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(width) 4999bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("'%s'", data); 5009bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels} 5019bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 502e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#ifdef USE_WINSOCK 503e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET/* 504e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * WinSock select() does not support standard file descriptors, 505e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * it can only check SOCKETs. The following function is an attempt 506e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * to re-create a select() function with support for other handle types. 507e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * 508e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * select() function with support for WINSOCK2 sockets and all 509e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * other handle types supported by WaitForMultipleObjectsEx() as 510e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * well as disk files, anonymous and names pipes, and character input. 511e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * 512e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * http://msdn.microsoft.com/en-us/library/windows/desktop/ms687028.aspx 513e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * http://msdn.microsoft.com/en-us/library/windows/desktop/ms741572.aspx 514e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET */ 515e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNETstruct select_ws_wait_data { 516e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET HANDLE handle; /* actual handle to wait for during select */ 517e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET HANDLE event; /* internal event to abort waiting thread */ 518e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET}; 519e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNETstatic DWORD WINAPI select_ws_wait_thread(LPVOID lpParameter) 520e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET{ 521e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET struct select_ws_wait_data *data; 522e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET HANDLE handle, handles[2]; 523e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET INPUT_RECORD inputrecord; 524e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET LARGE_INTEGER size, pos; 525e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET DWORD type, length; 526e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 527e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* retrieve handles from internal structure */ 528e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET data = (struct select_ws_wait_data *) lpParameter; 529e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(data) { 530e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handle = data->handle; 531e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handles[0] = data->event; 532e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handles[1] = handle; 533e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET free(data); 534e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 535e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else 536e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return -1; 537e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 538e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* retrieve the type of file to wait on */ 539e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET type = GetFileType(handle); 540e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET switch(type) { 541e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET case FILE_TYPE_DISK: 542e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* The handle represents a file on disk, this means: 543e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * - WaitForMultipleObjectsEx will always be signalled for it. 544e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * - comparison of current position in file and total size of 545e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * the file can be used to check if we reached the end yet. 546e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * 547e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * Approach: Loop till either the internal event is signalled 548e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * or if the end of the file has already been reached. 549e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET */ 550e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET while(WaitForMultipleObjectsEx(2, handles, FALSE, INFINITE, FALSE) 551e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET == WAIT_OBJECT_0 + 1) { 552e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* get total size of file */ 553e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET length = 0; 554e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET size.QuadPart = 0; 555e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET size.LowPart = GetFileSize(handle, &length); 556e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if((size.LowPart != INVALID_FILE_SIZE) || 557e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET (GetLastError() == NO_ERROR)) { 558e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET size.HighPart = length; 559e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* get the current position within the file */ 560e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET pos.QuadPart = 0; 561e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET pos.LowPart = SetFilePointer(handle, 0, &pos.HighPart, FILE_CURRENT); 562e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if((pos.LowPart != INVALID_SET_FILE_POINTER) || 563e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET (GetLastError() == NO_ERROR)) { 564e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* compare position with size, abort if not equal */ 565e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(size.QuadPart == pos.QuadPart) { 566e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* sleep and continue waiting */ 567e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET SleepEx(0, FALSE); 568e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET continue; 569e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 570e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 571e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 572e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* there is some data available, stop waiting */ 573e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET break; 574e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 575e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET break; 576e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 577e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET case FILE_TYPE_CHAR: 578e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* The handle represents a character input, this means: 579e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * - WaitForMultipleObjectsEx will be signalled on any kind of input, 580e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * including mouse and window size events we do not care about. 581e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * 582e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * Approach: Loop till either the internal event is signalled 583e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * or we get signalled for an actual key-event. 584e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET */ 585e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET while(WaitForMultipleObjectsEx(2, handles, FALSE, INFINITE, FALSE) 586e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET == WAIT_OBJECT_0 + 1) { 587e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* check if this is an actual console handle */ 588e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET length = 0; 589e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(GetConsoleMode(handle, &length)) { 590e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* retrieve an event from the console buffer */ 591e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET length = 0; 592e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(PeekConsoleInput(handle, &inputrecord, 1, &length)) { 593e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* check if the event is not an actual key-event */ 594e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(length == 1 && inputrecord.EventType != KEY_EVENT) { 595e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* purge the non-key-event and continue waiting */ 596e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET ReadConsoleInput(handle, &inputrecord, 1, &length); 597e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET continue; 598e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 599e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 600e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 601e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* there is some data available, stop waiting */ 602e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET break; 603e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 604e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET break; 605e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 606e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET case FILE_TYPE_PIPE: 607e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* The handle represents an anonymous or named pipe, this means: 608e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * - WaitForMultipleObjectsEx will always be signalled for it. 609e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * - peek into the pipe and retrieve the amount of data available. 610e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * 611e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * Approach: Loop till either the internal event is signalled 612e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * or there is data in the pipe available for reading. 613e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET */ 614e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET while(WaitForMultipleObjectsEx(2, handles, FALSE, INFINITE, FALSE) 615e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET == WAIT_OBJECT_0 + 1) { 616e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* peek into the pipe and retrieve the amount of data available */ 617e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET length = 0; 618e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(PeekNamedPipe(handle, NULL, 0, NULL, &length, NULL)) { 619e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* if there is no data available, sleep and continue waiting */ 620e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(length == 0) { 621e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET SleepEx(0, FALSE); 622e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET continue; 623e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 624e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 625e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else { 626e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* if the pipe has been closed, sleep and continue waiting */ 627e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(GetLastError() == ERROR_BROKEN_PIPE) { 628e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET SleepEx(0, FALSE); 629e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET continue; 630e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 631e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 632e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* there is some data available, stop waiting */ 633e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET break; 634e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 635e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET break; 636e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 637e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET default: 638e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* The handle has an unknown type, try to wait on it */ 639e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET WaitForMultipleObjectsEx(2, handles, FALSE, INFINITE, FALSE); 640e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET break; 641e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 642e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 643e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return 0; 644e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET} 645e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNETstatic HANDLE select_ws_wait(HANDLE handle, HANDLE event) 646e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET{ 647e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET struct select_ws_wait_data *data; 648e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET HANDLE thread = NULL; 649e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 650e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* allocate internal waiting data structure */ 651e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET data = malloc(sizeof(struct select_ws_wait_data)); 652e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(data) { 653e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET data->handle = handle; 654e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET data->event = event; 655e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 656e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* launch waiting thread */ 657e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET thread = CreateThread(NULL, 0, 658e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET &select_ws_wait_thread, 659e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET data, 0, NULL); 660e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 661e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* free data if thread failed to launch */ 662e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(!thread) { 663e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET free(data); 664e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 665e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 666e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 667e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return thread; 668e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET} 669e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNETstruct select_ws_data { 670e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET curl_socket_t fd; /* the original input handle (indexed by fds) */ 671e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET curl_socket_t wsasock; /* the internal socket handle (indexed by wsa) */ 672e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET WSAEVENT wsaevent; /* the internal WINSOCK2 event (indexed by wsa) */ 673e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET HANDLE thread; /* the internal threads handle (indexed by thd) */ 674e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET}; 675e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNETstatic int select_ws(int nfds, fd_set *readfds, fd_set *writefds, 676e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET fd_set *exceptfds, struct timeval *timeout) 677e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET{ 678e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET DWORD milliseconds, wait, idx; 679e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET WSANETWORKEVENTS wsanetevents; 680e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET struct select_ws_data *data; 681e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET HANDLE handle, *handles; 682e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET curl_socket_t sock; 683e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET long networkevents; 684e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET WSAEVENT wsaevent; 685e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET int error, fds; 686e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET HANDLE waitevent = NULL; 687e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET DWORD nfd = 0, thd = 0, wsa = 0; 688e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET int ret = 0; 689e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 690e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* check if the input value is valid */ 691e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(nfds < 0) { 692e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET errno = EINVAL; 693e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return -1; 694e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 695e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 696e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* check if we got descriptors, sleep in case we got none */ 697e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(!nfds) { 698e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET Sleep((timeout->tv_sec * 1000) + (timeout->tv_usec / 1000)); 699e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return 0; 700e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 701e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 702e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* create internal event to signal waiting threads */ 703e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET waitevent = CreateEvent(NULL, TRUE, FALSE, NULL); 704e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(!waitevent) { 705e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET errno = ENOMEM; 706e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return -1; 707e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 708e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 709e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* allocate internal array for the internal data */ 710e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET data = malloc(nfds * sizeof(struct select_ws_data)); 711e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(data == NULL) { 712e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET errno = ENOMEM; 713e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return -1; 714e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 715e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 716e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* allocate internal array for the internal event handles */ 717e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handles = malloc(nfds * sizeof(HANDLE)); 718e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(handles == NULL) { 719e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET free(data); 720e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET errno = ENOMEM; 721e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return -1; 722e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 723e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 724e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* clear internal arrays */ 725e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET memset(data, 0, nfds * sizeof(struct select_ws_data)); 726e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET memset(handles, 0, nfds * sizeof(HANDLE)); 727e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 728e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* loop over the handles in the input descriptor sets */ 729e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET for(fds = 0; fds < nfds; fds++) { 730e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET networkevents = 0; 731e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handles[nfd] = 0; 732e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 733e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(FD_ISSET(fds, readfds)) 734e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET networkevents |= FD_READ|FD_ACCEPT|FD_CLOSE; 735e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 736e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(FD_ISSET(fds, writefds)) 737e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET networkevents |= FD_WRITE|FD_CONNECT; 738e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 739e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(FD_ISSET(fds, exceptfds)) 740e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET networkevents |= FD_OOB|FD_CLOSE; 741e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 742e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* only wait for events for which we actually care */ 743e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(networkevents) { 744e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET data[nfd].fd = curlx_sitosk(fds); 745e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(fds == fileno(stdin)) { 746e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handle = GetStdHandle(STD_INPUT_HANDLE); 747e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handle = select_ws_wait(handle, waitevent); 748e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handles[nfd] = handle; 749e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET data[thd].thread = handle; 750e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET thd++; 751e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 752e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else if(fds == fileno(stdout)) { 753e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handles[nfd] = GetStdHandle(STD_OUTPUT_HANDLE); 754e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 755e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else if(fds == fileno(stderr)) { 756e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handles[nfd] = GetStdHandle(STD_ERROR_HANDLE); 757e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 758e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else { 759e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET wsaevent = WSACreateEvent(); 760e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(wsaevent != WSA_INVALID_EVENT) { 761e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET error = WSAEventSelect(fds, wsaevent, networkevents); 762e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(error != SOCKET_ERROR) { 763e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handle = (HANDLE) wsaevent; 764e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handles[nfd] = handle; 765e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET data[wsa].wsasock = curlx_sitosk(fds); 766e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET data[wsa].wsaevent = wsaevent; 767e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET wsa++; 768e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 769e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else { 770e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET WSACloseEvent(wsaevent); 771e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handle = (HANDLE) curlx_sitosk(fds); 772e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handle = select_ws_wait(handle, waitevent); 773e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handles[nfd] = handle; 774e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET data[thd].thread = handle; 775e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET thd++; 776e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 777e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 778e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 779e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET nfd++; 780e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 781e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 782e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 783e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* convert struct timeval to milliseconds */ 784e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(timeout) { 785e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET milliseconds = ((timeout->tv_sec * 1000) + (timeout->tv_usec / 1000)); 786e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 787e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else { 788e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET milliseconds = INFINITE; 789e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 790e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 791e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* wait for one of the internal handles to trigger */ 792e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET wait = WaitForMultipleObjectsEx(nfd, handles, FALSE, milliseconds, FALSE); 793e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 794e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* signal the event handle for the waiting threads */ 795e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET SetEvent(waitevent); 796e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 797e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* loop over the internal handles returned in the descriptors */ 798e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET for(idx = 0; idx < nfd; idx++) { 799e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET handle = handles[idx]; 800e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET sock = data[idx].fd; 801e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET fds = curlx_sktosi(sock); 802e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 803e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* check if the current internal handle was triggered */ 804e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(wait != WAIT_FAILED && (wait - WAIT_OBJECT_0) <= idx && 805e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET WaitForSingleObjectEx(handle, 0, FALSE) == WAIT_OBJECT_0) { 806e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* first handle stdin, stdout and stderr */ 807e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(fds == fileno(stdin)) { 808e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* stdin is never ready for write or exceptional */ 809e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET FD_CLR(sock, writefds); 810e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET FD_CLR(sock, exceptfds); 811e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 812e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else if(fds == fileno(stdout) || fds == fileno(stderr)) { 813e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* stdout and stderr are never ready for read or exceptional */ 814e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET FD_CLR(sock, readfds); 815e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET FD_CLR(sock, exceptfds); 816e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 817e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else { 818e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* try to handle the event with the WINSOCK2 functions */ 819e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET wsanetevents.lNetworkEvents = 0; 820e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET error = WSAEnumNetworkEvents(fds, handle, &wsanetevents); 821e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(error != SOCKET_ERROR) { 822e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* remove from descriptor set if not ready for read/accept/close */ 823e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(!(wsanetevents.lNetworkEvents & (FD_READ|FD_ACCEPT|FD_CLOSE))) 824e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET FD_CLR(sock, readfds); 825e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 826e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* remove from descriptor set if not ready for write/connect */ 827e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(!(wsanetevents.lNetworkEvents & (FD_WRITE|FD_CONNECT))) 828e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET FD_CLR(sock, writefds); 829e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 830e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* HACK: 831e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * use exceptfds together with readfds to signal 832e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * that the connection was closed by the client. 833e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * 834e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * Reason: FD_CLOSE is only signaled once, sometimes 835e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * at the same time as FD_READ with data being available. 836e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * This means that recv/sread is not reliable to detect 837e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET * that the connection is closed. 838e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET */ 839e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* remove from descriptor set if not exceptional */ 840e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(!(wsanetevents.lNetworkEvents & (FD_OOB|FD_CLOSE))) 841e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET FD_CLR(sock, exceptfds); 842e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 843e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 844e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 845e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* check if the event has not been filtered using specific tests */ 846e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(FD_ISSET(sock, readfds) || FD_ISSET(sock, writefds) || 847e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET FD_ISSET(sock, exceptfds)) { 848e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET ret++; 849e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 850e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 851e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else { 852e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* remove from all descriptor sets since this handle did not trigger */ 853e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET FD_CLR(sock, readfds); 854e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET FD_CLR(sock, writefds); 855e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET FD_CLR(sock, exceptfds); 856e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 857e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 858e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 859e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET for(idx = 0; idx < wsa; idx++) { 860e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET WSAEventSelect(data[idx].wsasock, NULL, 0); 861e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET WSACloseEvent(data[idx].wsaevent); 862e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 863e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 864e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET for(idx = 0; idx < thd; idx++) { 865e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET WaitForSingleObject(data[idx].thread, INFINITE); 866e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET CloseHandle(data[idx].thread); 867e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 868e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 869e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET CloseHandle(waitevent); 870e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 871e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET free(handles); 872e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET free(data); 873e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 874e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return ret; 875e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET} 876e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#define select(a,b,c,d,e) select_ws(a,b,c,d,e) 877e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#endif /* USE_WINSOCK */ 878e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 8799bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels/* 8809bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sockfdp is a pointer to an established stream or CURL_SOCKET_BAD 8819bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 8829bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if sockfd is CURL_SOCKET_BAD, listendfd is a listening socket we must 8839bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels accept() 8849bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels*/ 8859bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic bool juggle(curl_socket_t *sockfdp, 8869bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels curl_socket_t listenfd, 8879bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels enum sockmode *mode) 8889bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels{ 8899bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels struct timeval timeout; 8909bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels fd_set fds_read; 8919bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels fd_set fds_write; 8929bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels fd_set fds_err; 8939bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels curl_socket_t sockfd = CURL_SOCKET_BAD; 894e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET int maxfd = -99; 8959bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ssize_t rc; 8969bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ssize_t nread_socket; 8979bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ssize_t bytes_written; 8989bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ssize_t buffer_len; 8999bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels int error = 0; 9009bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9019bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* 'buffer' is this excessively large only to be able to support things like 9029bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels test 1003 which tests exceedingly large server response lines */ 9039bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels unsigned char buffer[17010]; 9049bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels char data[16]; 9059bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9069bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(got_exit_signal) { 9079bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("signalled to die, exiting..."); 9089bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 9099bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 9109bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9119bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef HAVE_GETPPID 9129bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* As a last resort, quit if sockfilt process becomes orphan. Just in case 9139bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels parent ftpserver process has died without killing its sockfilt children */ 9149bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(getppid() <= 1) { 9159bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("process becomes orphan, exiting"); 9169bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 9179bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 9189bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 9199bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9209bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels timeout.tv_sec = 120; 9219bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels timeout.tv_usec = 0; 9229bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9239bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels FD_ZERO(&fds_read); 9249bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels FD_ZERO(&fds_write); 9259bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels FD_ZERO(&fds_err); 9269bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 927e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET FD_SET((curl_socket_t)fileno(stdin), &fds_read); 9289bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9299bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels switch(*mode) { 9309bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9319bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels case PASSIVE_LISTEN: 9329bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9339bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* server mode */ 9349bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sockfd = listenfd; 9359bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* there's always a socket to wait for */ 9369bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels FD_SET(sockfd, &fds_read); 937e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET maxfd = (int)sockfd; 9389bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels break; 9399bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9409bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels case PASSIVE_CONNECT: 9419bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9429bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sockfd = *sockfdp; 9439bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(CURL_SOCKET_BAD == sockfd) { 9449bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* eeek, we are supposedly connected and then this cannot be -1 ! */ 9459bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("socket is -1! on %s:%d", __FILE__, __LINE__); 9469bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels maxfd = 0; /* stdin */ 9479bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 9489bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else { 9499bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* there's always a socket to wait for */ 9509bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels FD_SET(sockfd, &fds_read); 951e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#ifdef USE_WINSOCK 952e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET FD_SET(sockfd, &fds_err); 953e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#endif 954e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET maxfd = (int)sockfd; 9559bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 9569bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels break; 9579bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9589bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels case ACTIVE: 9599bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9609bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sockfd = *sockfdp; 9619bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* sockfd turns CURL_SOCKET_BAD when our connection has been closed */ 9629bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(CURL_SOCKET_BAD != sockfd) { 9639bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels FD_SET(sockfd, &fds_read); 964e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#ifdef USE_WINSOCK 965e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET FD_SET(sockfd, &fds_err); 966e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#endif 967e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET maxfd = (int)sockfd; 9689bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 9699bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else { 9709bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("No socket to read on"); 9719bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels maxfd = 0; 9729bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 9739bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels break; 9749bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9759bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels case ACTIVE_DISCONNECT: 9769bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9779bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("disconnected, no socket to read on"); 9789bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels maxfd = 0; 9799bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sockfd = CURL_SOCKET_BAD; 9809bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels break; 9819bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9829bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } /* switch(*mode) */ 9839bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9849bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9859bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels do { 9869bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 987e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* select() blocking behavior call on blocking descriptors please */ 988e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 989e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET rc = select(maxfd + 1, &fds_read, &fds_write, &fds_err, &timeout); 9909bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9919bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(got_exit_signal) { 9929bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("signalled to die, exiting..."); 9939bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 9949bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 9959bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 996e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } while((rc == -1) && ((error = errno) == EINTR)); 9979bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 9989bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(rc < 0) { 9999bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("select() failed with error: (%d) %s", 10009bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels error, strerror(error)); 10019bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 10029bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 10039bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10049bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(rc == 0) 10059bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* timeout */ 10069bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return TRUE; 10079bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10089bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10099bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(FD_ISSET(fileno(stdin), &fds_read)) { 10109bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* read from stdin, commands/data to be dealt with and possibly passed on 10119bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels to the socket 10129bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10139bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels protocol: 10149bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10159bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 4 letter command + LF [mandatory] 10169bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10179bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 4-digit hexadecimal data length + LF [if the command takes data] 10189bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels data [the data being as long as set above] 10199bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10209bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels Commands: 10219bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10229bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels DATA - plain pass-thru data 10239bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels */ 10249bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10259bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!read_stdin(buffer, 5)) 10269bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 10279bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10289bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("Received %c%c%c%c (on stdin)", 10299bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels buffer[0], buffer[1], buffer[2], buffer[3] ); 10309bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10319bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!memcmp("PING", buffer, 4)) { 10329bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* send reply on stdout, just proving we are alive */ 10339bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!write_stdout("PONG\n", 5)) 10349bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 10359bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 10369bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10379bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else if(!memcmp("PORT", buffer, 4)) { 10389bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* Question asking us what PORT number we are listening to. 10399bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels Replies to PORT with "IPv[num]/[port]" */ 10409bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sprintf((char *)buffer, "%s/%hu\n", ipv_inuse, port); 10419bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels buffer_len = (ssize_t)strlen((char *)buffer); 10429bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels snprintf(data, sizeof(data), "PORT\n%04zx\n", buffer_len); 10439bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!write_stdout(data, 10)) 10449bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 10459bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!write_stdout(buffer, buffer_len)) 10469bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 10479bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 10489bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else if(!memcmp("QUIT", buffer, 4)) { 10499bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* just die */ 10509bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("quits"); 10519bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 10529bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 10539bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else if(!memcmp("DATA", buffer, 4)) { 10549bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* data IN => data OUT */ 10559bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10569bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!read_stdin(buffer, 5)) 10579bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 10589bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10599bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels buffer[5] = '\0'; 10609bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10619bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels buffer_len = (ssize_t)strtol((char *)buffer, NULL, 16); 10629bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if (buffer_len > (ssize_t)sizeof(buffer)) { 10639bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("ERROR: Buffer size (%zu bytes) too small for data size " 10649bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels "(%zd bytes)", sizeof(buffer), buffer_len); 10659bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 10669bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 10679bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("> %zd bytes data, server => client", buffer_len); 10689bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10699bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!read_stdin(buffer, buffer_len)) 10709bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 10719bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10729bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels lograw(buffer, buffer_len); 10739bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 10749bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(*mode == PASSIVE_LISTEN) { 10759bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("*** We are disconnected!"); 10769bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!write_stdout("DISC\n", 5)) 10779bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 10789bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 10799bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else { 10809bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* send away on the socket */ 10819bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels bytes_written = swrite(sockfd, buffer, buffer_len); 10829bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(bytes_written != buffer_len) { 10839bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("Not all data was sent. Bytes to send: %zd sent: %zd", 10849bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels buffer_len, bytes_written); 10859bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 10869bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 10879bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 10889bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else if(!memcmp("DISC", buffer, 4)) { 10899bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* disconnect! */ 10909bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!write_stdout("DISC\n", 5)) 10919bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 10929bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(sockfd != CURL_SOCKET_BAD) { 10939bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("====> Client forcibly disconnected"); 10949bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sclose(sockfd); 10959bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels *sockfdp = CURL_SOCKET_BAD; 10969bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(*mode == PASSIVE_CONNECT) 10979bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels *mode = PASSIVE_LISTEN; 10989bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else 10999bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels *mode = ACTIVE_DISCONNECT; 11009bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 11019bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else 11029bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("attempt to close already dead connection"); 11039bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return TRUE; 11049bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 11059bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 11069bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 11079bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 11089bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if((sockfd != CURL_SOCKET_BAD) && (FD_ISSET(sockfd, &fds_read)) ) { 11099bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1110e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET curl_socket_t newfd = CURL_SOCKET_BAD; /* newly accepted socket */ 1111e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 11129bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(*mode == PASSIVE_LISTEN) { 11139bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* there's no stream set up yet, this is an indication that there's a 11149bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels client connecting. */ 1115e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET newfd = accept(sockfd, NULL, NULL); 1116e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(CURL_SOCKET_BAD == newfd) { 1117e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET error = SOCKERRNO; 1118e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET logmsg("accept(%d, NULL, NULL) failed with error: (%d) %s", 1119e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET sockfd, error, strerror(error)); 1120e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 11219bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else { 11229bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("====> Client connect"); 11239bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!write_stdout("CNCT\n", 5)) 11249bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 1125e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET *sockfdp = newfd; /* store the new socket */ 11269bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels *mode = PASSIVE_CONNECT; /* we have connected */ 11279bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 11289bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return TRUE; 11299bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 11309bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 11319bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* read from socket, pass on data to stdout */ 11329bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels nread_socket = sread(sockfd, buffer, sizeof(buffer)); 11339bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1134e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(nread_socket > 0) { 1135e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET snprintf(data, sizeof(data), "DATA\n%04zx\n", nread_socket); 1136e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(!write_stdout(data, 10)) 1137e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return FALSE; 1138e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(!write_stdout(buffer, nread_socket)) 1139e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return FALSE; 1140e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 1141e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET logmsg("< %zd bytes data, client => server", nread_socket); 1142e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET lograw(buffer, nread_socket); 1143e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 1144e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 1145e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(nread_socket <= 0 1146e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#ifdef USE_WINSOCK 1147e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET || FD_ISSET(sockfd, &fds_err) 1148e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET#endif 1149e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET ) { 11509bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("====> Client disconnect"); 11519bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!write_stdout("DISC\n", 5)) 11529bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return FALSE; 11539bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sclose(sockfd); 11549bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels *sockfdp = CURL_SOCKET_BAD; 11559bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(*mode == PASSIVE_CONNECT) 11569bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels *mode = PASSIVE_LISTEN; 11579bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else 11589bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels *mode = ACTIVE_DISCONNECT; 11599bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return TRUE; 11609bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 11619bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 11629bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 11639bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return TRUE; 11649bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels} 11659bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 11669bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsstatic curl_socket_t sockdaemon(curl_socket_t sock, 11679bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels unsigned short *listenport) 11689bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels{ 11699bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* passive daemon style */ 1170e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET srvr_sockaddr_union_t listener; 11719bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels int flag; 11729bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels int rc; 11739bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels int totdelay = 0; 11749bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels int maxretr = 10; 11759bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels int delay= 20; 11769bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels int attempt = 0; 11779bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels int error = 0; 11789bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 11799bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels do { 11809bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels attempt++; 11819bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels flag = 1; 11829bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels rc = setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, 11839bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels (void *)&flag, sizeof(flag)); 11849bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(rc) { 11859bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels error = SOCKERRNO; 11869bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("setsockopt(SO_REUSEADDR) failed with error: (%d) %s", 11879bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels error, strerror(error)); 11889bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(maxretr) { 11899bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels rc = wait_ms(delay); 11909bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(rc) { 11919bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* should not happen */ 1192e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET error = errno; 11939bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("wait_ms() failed with error: (%d) %s", 11949bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels error, strerror(error)); 11959bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sclose(sock); 11969bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return CURL_SOCKET_BAD; 11979bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 11989bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(got_exit_signal) { 11999bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("signalled to die, exiting..."); 12009bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sclose(sock); 12019bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return CURL_SOCKET_BAD; 12029bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 12039bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels totdelay += delay; 12049bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels delay *= 2; /* double the sleep for next attempt */ 12059bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 12069bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 12079bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } while(rc && maxretr--); 12089bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 12099bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(rc) { 12109bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("setsockopt(SO_REUSEADDR) failed %d times in %d ms. Error: (%d) %s", 12119bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels attempt, totdelay, error, strerror(error)); 12129bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("Continuing anyway..."); 12139bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 12149bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 12159bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* When the specified listener port is zero, it is actually a 12169bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels request to let the system choose a non-zero available port. */ 12179bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 12189bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef ENABLE_IPV6 12199bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!use_ipv6) { 12209bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 1221e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET memset(&listener.sa4, 0, sizeof(listener.sa4)); 1222e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET listener.sa4.sin_family = AF_INET; 1223e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET listener.sa4.sin_addr.s_addr = INADDR_ANY; 1224e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET listener.sa4.sin_port = htons(*listenport); 1225e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET rc = bind(sock, &listener.sa, sizeof(listener.sa4)); 12269bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef ENABLE_IPV6 12279bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 12289bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else { 1229e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET memset(&listener.sa6, 0, sizeof(listener.sa6)); 1230e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET listener.sa6.sin6_family = AF_INET6; 1231e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET listener.sa6.sin6_addr = in6addr_any; 1232e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET listener.sa6.sin6_port = htons(*listenport); 1233e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET rc = bind(sock, &listener.sa, sizeof(listener.sa6)); 12349bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 12359bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif /* ENABLE_IPV6 */ 12369bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(rc) { 12379bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels error = SOCKERRNO; 12389bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("Error binding socket on port %hu: (%d) %s", 12399bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels *listenport, error, strerror(error)); 12409bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sclose(sock); 12419bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return CURL_SOCKET_BAD; 12429bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 12439bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 12449bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!*listenport) { 12459bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* The system was supposed to choose a port number, figure out which 12469bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels port we actually got and update the listener port value with it. */ 12479bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels curl_socklen_t la_size; 1248e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET srvr_sockaddr_union_t localaddr; 12499bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef ENABLE_IPV6 1250e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(!use_ipv6) 12519bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 1252e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET la_size = sizeof(localaddr.sa4); 12539bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef ENABLE_IPV6 1254e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else 1255e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET la_size = sizeof(localaddr.sa6); 12569bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 1257e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET memset(&localaddr.sa, 0, (size_t)la_size); 1258e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(getsockname(sock, &localaddr.sa, &la_size) < 0) { 12599bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels error = SOCKERRNO; 12609bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("getsockname() failed with error: (%d) %s", 12619bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels error, strerror(error)); 12629bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sclose(sock); 12639bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return CURL_SOCKET_BAD; 12649bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 1265e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET switch (localaddr.sa.sa_family) { 12669bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels case AF_INET: 1267e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET *listenport = ntohs(localaddr.sa4.sin_port); 12689bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels break; 12699bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef ENABLE_IPV6 12709bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels case AF_INET6: 1271e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET *listenport = ntohs(localaddr.sa6.sin6_port); 12729bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels break; 12739bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 12749bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels default: 12759bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels break; 12769bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 12779bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!*listenport) { 12789bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* Real failure, listener port shall not be zero beyond this point. */ 12799bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("Apparently getsockname() succeeded, with listener port zero."); 12809bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("A valid reason for this failure is a binary built without"); 12819bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("proper network library linkage. This might not be the only"); 12829bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("reason, but double check it before anything else."); 12839bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sclose(sock); 12849bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return CURL_SOCKET_BAD; 12859bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 12869bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 12879bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1288e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET /* bindonly option forces no listening */ 1289e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(bind_only) { 1290e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET logmsg("instructed to bind port without listening"); 1291e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET return sock; 1292e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 1293e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 12949bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* start accepting connections */ 12959bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels rc = listen(sock, 5); 12969bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(0 != rc) { 12979bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels error = SOCKERRNO; 1298e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET logmsg("listen(%d, 5) failed with error: (%d) %s", 1299e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET sock, error, strerror(error)); 13009bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sclose(sock); 13019bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return CURL_SOCKET_BAD; 13029bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 13039bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 13049bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return sock; 13059bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels} 13069bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 13079bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 13089bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelsint main(int argc, char *argv[]) 13099bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels{ 1310e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET srvr_sockaddr_union_t me; 13119bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels curl_socket_t sock = CURL_SOCKET_BAD; 13129bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels curl_socket_t msgsock = CURL_SOCKET_BAD; 13139bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels int wrotepidfile = 0; 13149bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels char *pidname= (char *)".sockfilt.pid"; 13159bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels bool juggle_again; 13169bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels int rc; 13179bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels int error; 13189bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels int arg=1; 13199bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels enum sockmode mode = PASSIVE_LISTEN; /* default */ 13209bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels const char *addr = NULL; 13219bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 13229bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels while(argc>arg) { 13239bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!strcmp("--version", argv[arg])) { 13249bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels printf("sockfilt IPv4%s\n", 13259bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef ENABLE_IPV6 13269bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels "/IPv6" 13279bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#else 13289bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels "" 13299bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 13309bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ); 13319bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return 0; 13329bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 13339bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else if(!strcmp("--verbose", argv[arg])) { 13349bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels verbose = TRUE; 13359bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels arg++; 13369bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 13379bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else if(!strcmp("--pidfile", argv[arg])) { 13389bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels arg++; 13399bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(argc>arg) 13409bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels pidname = argv[arg++]; 13419bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 13429bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else if(!strcmp("--logfile", argv[arg])) { 13439bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels arg++; 13449bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(argc>arg) 13459bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels serverlogfile = argv[arg++]; 13469bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 13479bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else if(!strcmp("--ipv6", argv[arg])) { 13489bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef ENABLE_IPV6 13499bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ipv_inuse = "IPv6"; 13509bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels use_ipv6 = TRUE; 13519bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 13529bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels arg++; 13539bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 13549bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else if(!strcmp("--ipv4", argv[arg])) { 13559bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* for completeness, we support this option as well */ 13569bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef ENABLE_IPV6 13579bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ipv_inuse = "IPv4"; 13589bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels use_ipv6 = FALSE; 13599bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 13609bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels arg++; 13619bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 1362e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else if(!strcmp("--bindonly", argv[arg])) { 1363e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET bind_only = TRUE; 1364e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET arg++; 1365e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 13669bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else if(!strcmp("--port", argv[arg])) { 13679bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels arg++; 13689bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(argc>arg) { 13699bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels char *endptr; 13709bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels unsigned long ulnum = strtoul(argv[arg], &endptr, 10); 13719bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if((endptr != argv[arg] + strlen(argv[arg])) || 13729bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels ((ulnum != 0UL) && ((ulnum < 1025UL) || (ulnum > 65535UL)))) { 13739bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels fprintf(stderr, "sockfilt: invalid --port argument (%s)\n", 13749bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels argv[arg]); 13759bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return 0; 13769bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 13779bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels port = curlx_ultous(ulnum); 13789bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels arg++; 13799bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 13809bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 13819bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else if(!strcmp("--connect", argv[arg])) { 13829bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* Asked to actively connect to the specified local port instead of 13839bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels doing a passive server-style listening. */ 13849bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels arg++; 13859bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(argc>arg) { 13869bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels char *endptr; 13879bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels unsigned long ulnum = strtoul(argv[arg], &endptr, 10); 13889bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if((endptr != argv[arg] + strlen(argv[arg])) || 13899bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels (ulnum < 1025UL) || (ulnum > 65535UL)) { 13909bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels fprintf(stderr, "sockfilt: invalid --connect argument (%s)\n", 13919bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels argv[arg]); 13929bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return 0; 13939bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 13949bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels connectport = curlx_ultous(ulnum); 13959bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels arg++; 13969bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 13979bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 13989bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else if(!strcmp("--addr", argv[arg])) { 13999bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* Set an IP address to use with --connect; otherwise use localhost */ 14009bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels arg++; 14019bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(argc>arg) { 14029bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels addr = argv[arg]; 14039bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels arg++; 14049bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 14059bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 14069bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else { 14079bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels puts("Usage: sockfilt [option]\n" 14089bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels " --version\n" 14099bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels " --verbose\n" 14109bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels " --logfile [file]\n" 14119bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels " --pidfile [file]\n" 14129bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels " --ipv4\n" 14139bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels " --ipv6\n" 1414e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET " --bindonly\n" 14159bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels " --port [port]\n" 14169bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels " --connect [port]\n" 14179bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels " --addr [address]"); 14189bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return 0; 14199bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 14209bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 14219bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 14229bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef WIN32 14239bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels win32_init(); 14249bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels atexit(win32_cleanup); 1425e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET 1426e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET setmode(fileno(stdin), O_BINARY); 1427e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET setmode(fileno(stdout), O_BINARY); 1428e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET setmode(fileno(stderr), O_BINARY); 14299bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 14309bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 14319bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels install_signal_handlers(); 14329bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 14339bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef ENABLE_IPV6 14349bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!use_ipv6) 14359bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 14369bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sock = socket(AF_INET, SOCK_STREAM, 0); 14379bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef ENABLE_IPV6 14389bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else 14399bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sock = socket(AF_INET6, SOCK_STREAM, 0); 14409bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 14419bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 14429bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(CURL_SOCKET_BAD == sock) { 14439bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels error = SOCKERRNO; 14449bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("Error creating socket: (%d) %s", 14459bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels error, strerror(error)); 1446e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET write_stdout("FAIL\n", 5); 14479bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels goto sockfilt_cleanup; 14489bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 14499bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 14509bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(connectport) { 14519bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* Active mode, we should connect to the given port number */ 14529bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels mode = ACTIVE; 14539bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef ENABLE_IPV6 14549bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(!use_ipv6) { 14559bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif 1456e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET memset(&me.sa4, 0, sizeof(me.sa4)); 1457e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET me.sa4.sin_family = AF_INET; 1458e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET me.sa4.sin_port = htons(connectport); 1459e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET me.sa4.sin_addr.s_addr = INADDR_ANY; 14609bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if (!addr) 14619bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels addr = "127.0.0.1"; 1462e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET Curl_inet_pton(AF_INET, addr, &me.sa4.sin_addr); 14639bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1464e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET rc = connect(sock, &me.sa, sizeof(me.sa4)); 14659bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#ifdef ENABLE_IPV6 14669bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 14679bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else { 1468e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET memset(&me.sa6, 0, sizeof(me.sa6)); 1469e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET me.sa6.sin6_family = AF_INET6; 1470e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET me.sa6.sin6_port = htons(connectport); 14719bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if (!addr) 14729bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels addr = "::1"; 1473e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET Curl_inet_pton(AF_INET6, addr, &me.sa6.sin6_addr); 14749bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1475e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET rc = connect(sock, &me.sa, sizeof(me.sa6)); 14769bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 14779bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels#endif /* ENABLE_IPV6 */ 14789bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(rc) { 14799bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels error = SOCKERRNO; 14809bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("Error connecting to port %hu: (%d) %s", 14819bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels connectport, error, strerror(error)); 1482e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET write_stdout("FAIL\n", 5); 14839bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels goto sockfilt_cleanup; 14849bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 14859bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("====> Client connect"); 14869bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels msgsock = sock; /* use this as stream */ 14879bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 14889bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else { 14899bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* passive daemon style */ 14909bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sock = sockdaemon(sock, &port); 1491e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(CURL_SOCKET_BAD == sock) { 1492e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET write_stdout("FAIL\n", 5); 14939bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels goto sockfilt_cleanup; 1494e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 14959bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels msgsock = CURL_SOCKET_BAD; /* no stream socket yet */ 14969bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 14979bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 14989bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("Running %s version", ipv_inuse); 14999bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 15009bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(connectport) 15019bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("Connected to port %hu", connectport); 1502e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET else if(bind_only) 1503e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET logmsg("Bound without listening on port %hu", port); 15049bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels else 15059bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("Listening on port %hu", port); 15069bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 15079bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels wrotepidfile = write_pidfile(pidname); 1508e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET if(!wrotepidfile) { 1509e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET write_stdout("FAIL\n", 5); 15109bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels goto sockfilt_cleanup; 1511e6cd738ed3716c02557fb3a47515244e949ade39Bertrand SIMONNET } 15129bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 15139bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels do { 15149bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels juggle_again = juggle(&msgsock, sock, &mode); 15159bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } while(juggle_again); 15169bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 15179bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckelssockfilt_cleanup: 15189bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 15199bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if((msgsock != sock) && (msgsock != CURL_SOCKET_BAD)) 15209bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sclose(msgsock); 15219bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 15229bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(sock != CURL_SOCKET_BAD) 15239bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels sclose(sock); 15249bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 15259bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(wrotepidfile) 15269bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels unlink(pidname); 15279bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 15289bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels restore_signal_handlers(); 15299bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 15309bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels if(got_exit_signal) { 15319bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("============> sockfilt exits with signal (%d)", exit_signal); 15329bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels /* 15339bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * To properly set the return status of the process we 15349bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * must raise the same signal SIGINT or SIGTERM that we 15359bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels * caught and let the old handler take care of it. 15369bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels */ 15379bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels raise(exit_signal); 15389bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels } 15399bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 15409bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels logmsg("============> sockfilt quits"); 15419bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels return 0; 15429bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels} 15439bd90e6e25f1e55f50201c87a1b5837de7e5b64aLucas Eckels 1544