1 const char errlog_rcs[] = "$Id: errlog.c,v 1.38 2002/03/31 17:18:59 jongfoster Exp $";
2 /*********************************************************************
4 * File : $Source: /cvsroot/ijbswa/current/errlog.c,v $
6 * Purpose : Log errors to a designated destination in an elegant,
9 * Copyright : Written by and Copyright (C) 2001 the SourceForge
10 * Privoxy team. http://www.privoxy.org/
12 * Based on the Internet Junkbuster originally written
13 * by and Copyright (C) 1997 Anonymous Coders and
14 * Junkbusters Corporation. http://www.junkbusters.com
16 * This program is free software; you can redistribute it
17 * and/or modify it under the terms of the GNU General
18 * Public License as published by the Free Software
19 * Foundation; either version 2 of the License, or (at
20 * your option) any later version.
22 * This program is distributed in the hope that it will
23 * be useful, but WITHOUT ANY WARRANTY; without even the
24 * implied warranty of MERCHANTABILITY or FITNESS FOR A
25 * PARTICULAR PURPOSE. See the GNU General Public
26 * License for more details.
28 * The GNU General Public License should be included with
29 * this file. If not, you can view it at
30 * http://www.gnu.org/copyleft/gpl.html
31 * or write to the Free Software Foundation, Inc., 59
32 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
36 * Revision 1.38 2002/03/31 17:18:59 jongfoster
37 * Win32 only: Enabling STRICT to fix a VC++ compile warning.
39 * Revision 1.37 2002/03/27 14:32:43 david__schmidt
40 * More compiler warning message maintenance
42 * Revision 1.36 2002/03/26 22:29:54 swa
43 * we have a new homepage!
45 * Revision 1.35 2002/03/24 15:23:33 jongfoster
48 * Revision 1.34 2002/03/24 13:25:43 swa
49 * name change related issues
51 * Revision 1.33 2002/03/13 00:27:04 jongfoster
54 * Revision 1.32 2002/03/07 03:46:17 oes
55 * Fixed compiler warnings
57 * Revision 1.31 2002/03/06 23:02:57 jongfoster
60 * Revision 1.30 2002/03/05 22:43:45 david__schmidt
61 * - Better error reporting on OS/2
62 * - Fix double-slash comment (oops)
64 * Revision 1.29 2002/03/04 23:45:13 jongfoster
65 * Printing thread ID if using Win32 native threads
67 * Revision 1.28 2002/03/04 17:59:59 oes
68 * Deleted deletePidFile(), cosmetics
70 * Revision 1.27 2002/03/04 02:08:01 david__schmidt
71 * Enable web editing of actions file on OS/2 (it had been broken all this time!)
73 * Revision 1.26 2002/01/09 19:05:45 steudten
74 * Fix big memory leak.
76 * Revision 1.25 2002/01/09 14:32:08 oes
77 * Added support for gmtime_r and localtime_r.
79 * Revision 1.24 2001/12/30 14:07:32 steudten
80 * - Add signal handling (unix)
81 * - Add SIGHUP handler (unix)
82 * - Add creation of pidfile (unix)
83 * - Add action 'top' in rc file (RH)
84 * - Add entry 'SIGNALS' to manpage
85 * - Add exit message to logfile (unix)
87 * Revision 1.23 2001/11/07 00:02:13 steudten
88 * Add line number in error output for lineparsing for
89 * actionsfile and configfile.
90 * Special handling for CLF added.
92 * Revision 1.22 2001/11/05 23:43:05 steudten
93 * Add time+date to log files.
95 * Revision 1.21 2001/10/25 03:40:47 david__schmidt
96 * Change in porting tactics: OS/2's EMX porting layer doesn't allow multiple
97 * threads to call select() simultaneously. So, it's time to do a real, live,
98 * native OS/2 port. See defines for __EMX__ (the porting layer) vs. __OS2__
99 * (native). Both versions will work, but using __OS2__ offers multi-threading.
101 * Revision 1.20 2001/09/16 23:04:34 jongfoster
104 * Revision 1.19 2001/09/13 20:08:06 jongfoster
105 * Adding support for LOG_LEVEL_CGI
107 * Revision 1.18 2001/09/10 11:27:24 oes
108 * Declaration of w32_socket_strerr now conditional
110 * Revision 1.17 2001/09/10 10:17:13 oes
111 * Removed unused variable; Fixed sprintf format
113 * Revision 1.16 2001/07/30 22:08:36 jongfoster
114 * Tidying up #defines:
115 * - All feature #defines are now of the form FEATURE_xxx
116 * - Permanently turned off WIN_GUI_EDIT
117 * - Permanently turned on WEBDAV and SPLIT_PROXY_ARGS
119 * Revision 1.15 2001/07/29 17:41:10 jongfoster
120 * Now prints thread ID for each message (pthreads only)
122 * Revision 1.14 2001/07/19 19:03:48 haroon
123 * - Added case for LOG_LEVEL_POPUPS
125 * Revision 1.13 2001/07/13 13:58:58 oes
126 * - Added case for LOG_LEVEL_DEANIMATE
127 * - Removed all #ifdef PCRS
129 * Revision 1.12 2001/06/09 10:55:28 jongfoster
130 * Changing BUFSIZ ==> BUFFER_SIZE
132 * Revision 1.11 2001/06/01 18:14:49 jongfoster
133 * Changing the calls to strerr() to check HAVE_STRERR (which is defined
134 * in config.h if appropriate) rather than the NO_STRERR macro.
136 * Revision 1.10 2001/05/29 11:52:21 oes
137 * Conditional compilation of w32_socket_error
139 * Revision 1.9 2001/05/28 16:15:17 jongfoster
140 * Improved reporting of errors under Win32.
142 * Revision 1.8 2001/05/26 17:25:14 jongfoster
143 * Added support for CLF (Common Log Format) and fixed LOG_LEVEL_LOG
145 * Revision 1.7 2001/05/26 15:21:28 jongfoster
146 * Activity animation in Win32 GUI now works even if debug==0
148 * Revision 1.6 2001/05/25 21:55:08 jongfoster
149 * Now cleans up properly on FATAL (removes taskbar icon etc)
151 * Revision 1.5 2001/05/22 18:46:04 oes
153 * - Enabled filtering banners by size rather than URL
154 * by adding patterns that replace all standard banner
155 * sizes with the "Junkbuster" gif to the re_filterfile
157 * - Enabled filtering WebBugs by providing a pattern
158 * which kills all 1x1 images
160 * - Added support for PCRE_UNGREEDY behaviour to pcrs,
161 * which is selected by the (nonstandard and therefore
162 * capital) letter 'U' in the option string.
163 * It causes the quantifiers to be ungreedy by default.
164 * Appending a ? turns back to greedy (!).
166 * - Added a new interceptor ijb-send-banner, which
167 * sends back the "Junkbuster" gif. Without imagelist or
168 * MSIE detection support, or if tinygif = 1, or the
169 * URL isn't recognized as an imageurl, a lame HTML
170 * explanation is sent instead.
172 * - Added new feature, which permits blocking remote
173 * script redirects and firing back a local redirect
175 * The feature is conditionally compiled, i.e. it
176 * can be disabled with --disable-fast-redirects,
177 * plus it must be activated by a "fast-redirects"
178 * line in the config file, has its own log level
179 * and of course wants to be displayed by show-proxy-args
180 * Note: Boy, all the #ifdefs in 1001 locations and
181 * all the fumbling with configure.in and acconfig.h
182 * were *way* more work than the feature itself :-(
184 * - Because a generic redirect template was needed for
185 * this, tinygif = 3 now uses the same.
187 * - Moved GIFs, and other static HTTP response templates
192 * - Removed some >400 CRs again (Jon, you really worked
195 * Revision 1.4 2001/05/21 19:32:54 jongfoster
196 * Added another #ifdef _WIN_CONSOLE
198 * Revision 1.3 2001/05/20 01:11:40 jongfoster
199 * Added support for LOG_LEVEL_FATAL
200 * Renamed LOG_LEVEL_FRC to LOG_LEVEL_FORCE,
201 * and LOG_LEVEL_REF to LOG_LEVEL_RE_FILTER
203 * Revision 1.2 2001/05/17 22:42:01 oes
204 * - Cleaned CRLF's from the sources and related files
205 * - Repaired logging for REF and FRC
207 * Revision 1.1.1.1 2001/05/15 13:58:51 oes
208 * Initial import of version 2.9.3 source tree
211 *********************************************************************/
215 #include "miscutil.h"
222 #if !defined(_WIN32) && !defined(__OS2__)
224 #endif /* !defined(_WIN32) && !defined(__OS2__) */
228 #ifdef FEATURE_PTHREAD
230 #endif /* def FEATURE_PTHREAD */
239 #endif /* ndef _WIN_CONSOLE */
240 #endif /* def _WIN32 */
243 #include <sys/socket.h> /* For sock_errno */
252 const char errlog_h_rcs[] = ERRLOG_H_VERSION;
256 * LOG_LEVEL_FATAL cannot be turned off. (There are
257 * some exceptional situations where we need to get a
258 * message to the user).
260 #define LOG_LEVEL_MINIMUM LOG_LEVEL_FATAL
262 /* where to log (default: stderr) */
263 static FILE *logfp = NULL;
265 /* logging detail level. */
266 static int debug = (LOG_LEVEL_FATAL | LOG_LEVEL_ERROR | LOG_LEVEL_INFO);
268 /* static functions */
269 static void fatal_error(const char * error_message);
271 static char *w32_socket_strerr(int errcode, char *tmp_buf);
274 /*********************************************************************
276 * Function : fatal_error
278 * Description : Displays a fatal error to standard error (or, on
279 * a WIN32 GUI, to a dialog box), and exits
280 * JunkBuster with status code 1.
283 * 1 : error_message = The error message to display.
285 * Returns : Does not return.
287 *********************************************************************/
288 static void fatal_error(const char * error_message)
290 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
291 MessageBox(g_hwndLogFrame, error_message, "Privoxy Error",
292 MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_SETFOREGROUND | MB_TOPMOST);
294 /* Cleanup - remove taskbar icon etc. */
297 #else /* if !defined(_WIN32) || defined(_WIN_CONSOLE) */
298 fputs(error_message, stderr);
299 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
309 /*********************************************************************
311 * Function : init_error_log
313 * Description : Initializes the logging module. Must call before
317 * 1 : prog_name = The program name.
318 * 2 : logfname = The logfile name, or NULL for stderr.
319 * 3 : debuglevel = The debugging level.
323 *********************************************************************/
324 void init_error_log(const char *prog_name, const char *logfname, int debuglevel)
328 /* FIXME RACE HAZARD: should start critical section error_log_use here */
330 /* set the logging detail level */
331 debug = debuglevel | LOG_LEVEL_MINIMUM;
333 if ((logfp != NULL) && (logfp != stderr))
335 log_error(LOG_LEVEL_INFO, "(Re-)Open logfile %s", logfname ? logfname : "none");
340 /* set the designated log file */
343 if( NULL == (fp = fopen(logfname, "a")) )
345 log_error(LOG_LEVEL_FATAL, "init_error_log(): can't open logfile: %s", logfname);
348 /* set logging to be completely unbuffered */
354 log_error(LOG_LEVEL_INFO, "Privoxy version " VERSION);
355 if (prog_name != NULL)
357 log_error(LOG_LEVEL_INFO, "Program name: %s", prog_name);
360 /* FIXME RACE HAZARD: should end critical section error_log_use here */
362 } /* init_error_log */
365 /*********************************************************************
367 * Function : log_error
369 * Description : This is the error-reporting and logging function.
372 * 1 : loglevel = the type of message to be logged
373 * 2 : fmt = the main string we want logged, printf-like
374 * 3 : ... = arguments to be inserted in fmt (printf-like).
378 *********************************************************************/
379 void log_error(int loglevel, char *fmt, ...)
383 static char *outbuf_save = NULL;
386 long this_thread = 1; /* was: pthread_t this_thread;*/
392 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
394 * Irrespective of debug setting, a GET/POST/CONNECT makes
395 * the taskbar icon animate. (There is an option to disable
396 * this but checking that is handled inside LogShowActivity()).
398 if (loglevel == LOG_LEVEL_GPC)
402 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
404 /* verify if loglevel applies to current settings and bail out if negative */
405 if ((loglevel & debug) == 0)
410 /* FIXME get current thread id */
411 #ifdef FEATURE_PTHREAD
412 this_thread = (long)pthread_self();
413 #elif defined(_WIN32)
414 this_thread = GetCurrentThreadId();
415 #elif defined(__OS2__)
416 ulrc = DosGetInfoBlocks(&ptib, NULL);
418 this_thread = ptib -> tib_ptib2 -> tib2_ultid;
419 #endif /* def FEATURE_PTHREAD */
423 outbuf_save = outbuf = (char*)malloc(BUFFER_SIZE);
426 outbuf = outbuf_save;
430 * Write timestamp into tempbuf.
432 * Complex because not all OSs have tm_gmtoff or
433 * the %z field in strftime()
438 #ifdef HAVE_LOCALTIME_R
439 tm_now = *localtime_r(&now, &tm_now);
441 tm_now = *localtime (&now);
443 strftime(outbuf, BUFFER_SIZE-6, "%b %d %H:%M:%S ", &tm_now);
444 outbuf += strlen( outbuf );
448 case LOG_LEVEL_ERROR:
449 outc = sprintf(outbuf, "Privoxy(%05ld) Error: ", this_thread);
451 case LOG_LEVEL_FATAL:
452 outc = sprintf(outbuf, "Privoxy(%05ld) Fatal error: ", this_thread);
455 outc = sprintf(outbuf, "Privoxy(%05ld) Request: ", this_thread);
457 case LOG_LEVEL_CONNECT:
458 outc = sprintf(outbuf, "Privoxy(%05ld) Connect: ", this_thread);
461 outc = sprintf(outbuf, "Privoxy(%05ld) Writing: ", this_thread);
463 case LOG_LEVEL_HEADER:
464 outc = sprintf(outbuf, "Privoxy(%05ld) Header: ", this_thread);
467 outc = sprintf(outbuf, "Privoxy(%05ld) Info: ", this_thread);
469 case LOG_LEVEL_RE_FILTER:
470 outc = sprintf(outbuf, "Privoxy(%05ld) Re-Filter: ", this_thread);
472 #ifdef FEATURE_FORCE_LOAD
473 case LOG_LEVEL_FORCE:
474 outc = sprintf(outbuf, "Privoxy(%05ld) Force: ", this_thread);
476 #endif /* def FEATURE_FORCE_LOAD */
477 #ifdef FEATURE_FAST_REDIRECTS
478 case LOG_LEVEL_REDIRECTS:
479 outc = sprintf(outbuf, "Privoxy(%05ld) Redirect: ", this_thread);
481 #endif /* def FEATURE_FAST_REDIRECTS */
482 case LOG_LEVEL_DEANIMATE:
483 outc = sprintf(outbuf, "Privoxy(%05ld) Gif-Deanimate: ", this_thread);
486 outbuf = outbuf_save;
490 #ifdef FEATURE_KILL_POPUPS
491 case LOG_LEVEL_POPUPS:
492 outc = sprintf(outbuf, "Privoxy(%05ld) Kill-Popups: ", this_thread);
494 #endif /* def FEATURE_KILL_POPUPS */
496 outc = sprintf(outbuf, "Privoxy(%05ld) CGI: ", this_thread);
499 outc = sprintf(outbuf, "Privoxy(%05ld) UNKNOWN LOG TYPE(%d): ", this_thread, loglevel);
503 /* get ready to scan var. args. */
506 /* build formatted message from fmt and var-args */
507 while ((*src) && (outc < BUFFER_SIZE-2))
509 char tempbuf[BUFFER_SIZE];
528 outbuf[outc++] = '%';
531 ival = va_arg( ap, int );
533 outc += sprintf(tempbuf, "%d", ival);
534 if (outc < BUFFER_SIZE-1)
536 strcpy(outbuf + oldoutc, tempbuf);
540 outbuf[oldoutc] = '\0';
544 uval = va_arg( ap, unsigned );
546 outc += sprintf(tempbuf, "%u", uval);
547 if (outc < BUFFER_SIZE-1)
549 strcpy(outbuf + oldoutc, tempbuf);
553 outbuf[oldoutc] = '\0';
557 /* this is a modifier that must be followed by u or d */
561 lval = va_arg( ap, long );
563 outc += sprintf(tempbuf, "%ld", lval);
567 ulval = va_arg( ap, unsigned long );
569 outc += sprintf(tempbuf, "%lu", ulval);
574 sprintf(outbuf, "Privoxy(%ld) Error: log_error(): Bad format string:\n"
576 "Exiting.", this_thread, fmt);
577 /* FIXME RACE HAZARD: should start critical section error_log_use here */
582 fputs(outbuf, logfp);
583 /* FIXME RACE HAZARD: should end critical section error_log_use here */
588 if (outc < BUFFER_SIZE-1)
590 strcpy(outbuf + oldoutc, tempbuf);
594 outbuf[oldoutc] = '\0';
599 * Note that char paramaters are converted to int, so we need to
600 * pass "int" to va_arg. (See K&R, 2nd ed, section A7.3.2, page 202)
602 outbuf[outc++] = (char) va_arg( ap, int );
605 sval = va_arg( ap, char * );
607 outc += strlen(sval);
608 if (outc < BUFFER_SIZE-1)
610 strcpy(outbuf + oldoutc, sval);
614 outbuf[oldoutc] = '\0';
618 /* Non-standard: Print a counted string. Takes 2 parameters:
619 * int length, const char * string
621 ival = va_arg( ap, int );
622 sval = va_arg( ap, char * );
629 if (outc < BUFFER_SIZE-1)
631 memcpy(outbuf + oldoutc, sval, (size_t) ival);
635 outbuf[oldoutc] = '\0';
639 /* Non-standard: Print error code from errno */
641 ival = WSAGetLastError();
642 sval = w32_socket_strerr(ival, tempbuf);
647 sval = strerror(ival);
648 #else /* ifndef _WIN32 */
651 sval = strerror(ival);
652 #else /* ifndef HAVE_STRERROR */
654 #endif /* ndef HAVE_STRERROR */
657 sprintf(tempbuf, "(errno = %d)", ival);
660 #endif /* ndef _WIN32 */
662 outc += strlen(sval);
663 if (outc < BUFFER_SIZE-1)
665 strcpy(outbuf + oldoutc, sval);
669 outbuf[oldoutc] = '\0';
673 /* Non-standard: Print a Common Log File timestamp */
676 * Write timestamp into tempbuf.
678 * Complex because not all OSs have tm_gmtoff or
679 * the %z field in strftime()
684 #ifdef HAVE_LOCALTIME_R
690 gmt = *gmtime_r(&now, &gmt);
694 #ifdef HAVE_LOCALTIME_R
695 tm_now = localtime_r(&now, &dummy);
697 tm_now = localtime (&now);
699 days = tm_now->tm_yday - gmt.tm_yday;
700 hrs = ((days < -1 ? 24 : 1 < days ? -24 : days * 24) + tm_now->tm_hour - gmt.tm_hour);
701 mins = hrs * 60 + tm_now->tm_min - gmt.tm_min;
702 strftime (tempbuf, BUFFER_SIZE-6, "%d/%b/%Y:%H:%M:%S ", tm_now);
703 sprintf (tempbuf + strlen(tempbuf), "%+03d%02d", mins / 60, abs(mins) % 60);
706 outc += strlen(tempbuf);
707 if (outc < BUFFER_SIZE-1)
709 strcpy(outbuf + oldoutc, tempbuf);
713 outbuf[oldoutc] = '\0';
717 sprintf(outbuf, "Privoxy(%ld) Error: log_error(): Bad format string:\n"
719 "Exiting.", this_thread, fmt);
720 /* FIXME RACE HAZARD: should start critical section error_log_use here */
725 fputs(outbuf_save, logfp);
726 /* FIXME RACE HAZARD: should end critical section error_log_use here */
727 fatal_error(outbuf_save);
735 /* done with var. args */
738 if (outc >= BUFFER_SIZE-2)
740 /* insufficient room for newline and trailing null. */
742 static const char warning[] = "... [too long, truncated]\n";
744 if (outc < BUFFER_SIZE)
746 /* Need to add terminating null in this case. */
750 /* Truncate output */
751 outbuf[BUFFER_SIZE - sizeof(warning)] = '\0';
754 strcat(outbuf, warning);
758 /* Add terminating newline and null */
759 outbuf[outc++] = '\n';
763 /* FIXME RACE HAZARD: should start critical section error_log_use here */
765 /* deal with glibc stupidity - it won't let you initialize logfp */
771 fputs(outbuf_save, logfp);
773 if (loglevel == LOG_LEVEL_FATAL)
775 fatal_error(outbuf_save);
779 /* FIXME RACE HAZARD: should end critical section error_log_use here */
781 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
782 /* Write to display */
783 LogPutString(outbuf_save);
784 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
790 /*********************************************************************
792 * Function : w32_socket_strerr
794 * Description : Translate the return value from WSAGetLastError()
798 * 1 : errcode = The return value from WSAGetLastError().
799 * 2 : tmp_buf = A temporary buffer that might be used to
802 * Returns : String representing the error code. This may be
803 * a global string constant or a string stored in
806 *********************************************************************/
807 static char *w32_socket_strerr(int errcode, char *tmp_buf)
809 #define TEXT_FOR_ERROR(code,text) \
810 if (errcode == code) \
812 return #code " - " text; \
815 TEXT_FOR_ERROR(WSAEACCES, "Permission denied")
816 TEXT_FOR_ERROR(WSAEADDRINUSE, "Address already in use.")
817 TEXT_FOR_ERROR(WSAEADDRNOTAVAIL, "Cannot assign requested address.");
818 TEXT_FOR_ERROR(WSAEAFNOSUPPORT, "Address family not supported by protocol family.");
819 TEXT_FOR_ERROR(WSAEALREADY, "Operation already in progress.");
820 TEXT_FOR_ERROR(WSAECONNABORTED, "Software caused connection abort.");
821 TEXT_FOR_ERROR(WSAECONNREFUSED, "Connection refused.");
822 TEXT_FOR_ERROR(WSAECONNRESET, "Connection reset by peer.");
823 TEXT_FOR_ERROR(WSAEDESTADDRREQ, "Destination address required.");
824 TEXT_FOR_ERROR(WSAEFAULT, "Bad address.");
825 TEXT_FOR_ERROR(WSAEHOSTDOWN, "Host is down.");
826 TEXT_FOR_ERROR(WSAEHOSTUNREACH, "No route to host.");
827 TEXT_FOR_ERROR(WSAEINPROGRESS, "Operation now in progress.");
828 TEXT_FOR_ERROR(WSAEINTR, "Interrupted function call.");
829 TEXT_FOR_ERROR(WSAEINVAL, "Invalid argument.");
830 TEXT_FOR_ERROR(WSAEISCONN, "Socket is already connected.");
831 TEXT_FOR_ERROR(WSAEMFILE, "Too many open sockets.");
832 TEXT_FOR_ERROR(WSAEMSGSIZE, "Message too long.");
833 TEXT_FOR_ERROR(WSAENETDOWN, "Network is down.");
834 TEXT_FOR_ERROR(WSAENETRESET, "Network dropped connection on reset.");
835 TEXT_FOR_ERROR(WSAENETUNREACH, "Network is unreachable.");
836 TEXT_FOR_ERROR(WSAENOBUFS, "No buffer space available.");
837 TEXT_FOR_ERROR(WSAENOPROTOOPT, "Bad protocol option.");
838 TEXT_FOR_ERROR(WSAENOTCONN, "Socket is not connected.");
839 TEXT_FOR_ERROR(WSAENOTSOCK, "Socket operation on non-socket.");
840 TEXT_FOR_ERROR(WSAEOPNOTSUPP, "Operation not supported.");
841 TEXT_FOR_ERROR(WSAEPFNOSUPPORT, "Protocol family not supported.");
842 TEXT_FOR_ERROR(WSAEPROCLIM, "Too many processes.");
843 TEXT_FOR_ERROR(WSAEPROTONOSUPPORT, "Protocol not supported.");
844 TEXT_FOR_ERROR(WSAEPROTOTYPE, "Protocol wrong type for socket.");
845 TEXT_FOR_ERROR(WSAESHUTDOWN, "Cannot send after socket shutdown.");
846 TEXT_FOR_ERROR(WSAESOCKTNOSUPPORT, "Socket type not supported.");
847 TEXT_FOR_ERROR(WSAETIMEDOUT, "Connection timed out.");
848 TEXT_FOR_ERROR(WSAEWOULDBLOCK, "Resource temporarily unavailable.");
849 TEXT_FOR_ERROR(WSAHOST_NOT_FOUND, "Host not found.");
850 TEXT_FOR_ERROR(WSANOTINITIALISED, "Successful WSAStartup not yet performed.");
851 TEXT_FOR_ERROR(WSANO_DATA, "Valid name, no data record of requested type.");
852 TEXT_FOR_ERROR(WSANO_RECOVERY, "This is a non-recoverable error.");
853 TEXT_FOR_ERROR(WSASYSNOTREADY, "Network subsystem is unavailable.");
854 TEXT_FOR_ERROR(WSATRY_AGAIN, "Non-authoritative host not found.");
855 TEXT_FOR_ERROR(WSAVERNOTSUPPORTED, "WINSOCK.DLL version out of range.");
856 TEXT_FOR_ERROR(WSAEDISCON, "Graceful shutdown in progress.");
858 * The following error codes are documented in the Microsoft WinSock
859 * reference guide, but don't actually exist.
861 * TEXT_FOR_ERROR(WSA_INVALID_HANDLE, "Specified event object handle is invalid.");
862 * TEXT_FOR_ERROR(WSA_INVALID_PARAMETER, "One or more parameters are invalid.");
863 * TEXT_FOR_ERROR(WSAINVALIDPROCTABLE, "Invalid procedure table from service provider.");
864 * TEXT_FOR_ERROR(WSAINVALIDPROVIDER, "Invalid service provider version number.");
865 * TEXT_FOR_ERROR(WSA_IO_PENDING, "Overlapped operations will complete later.");
866 * TEXT_FOR_ERROR(WSA_IO_INCOMPLETE, "Overlapped I/O event object not in signaled state.");
867 * TEXT_FOR_ERROR(WSA_NOT_ENOUGH_MEMORY, "Insufficient memory available.");
868 * TEXT_FOR_ERROR(WSAPROVIDERFAILEDINIT, "Unable to initialize a service provider.");
869 * TEXT_FOR_ERROR(WSASYSCALLFAILURE, "System call failure.");
870 * TEXT_FOR_ERROR(WSA_OPERATION_ABORTED, "Overlapped operation aborted.");
873 sprintf(tmp_buf, "(error number %d)", errcode);
876 #endif /* def _WIN32 */