1 const char errlog_rcs[] = "$Id: errlog.c,v 1.29 2002/03/04 23:45:13 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 * IJBSWA team. http://ijbswa.sourceforge.net
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 1.29 2002/03/04 23:45:13 jongfoster
37 * Printing thread ID if using Win32 native threads
39 * Revision 1.28 2002/03/04 17:59:59 oes
40 * Deleted deletePidFile(), cosmetics
42 * Revision 1.27 2002/03/04 02:08:01 david__schmidt
43 * Enable web editing of actions file on OS/2 (it had been broken all this time!)
45 * Revision 1.26 2002/01/09 19:05:45 steudten
46 * Fix big memory leak.
48 * Revision 1.25 2002/01/09 14:32:08 oes
49 * Added support for gmtime_r and localtime_r.
51 * Revision 1.24 2001/12/30 14:07:32 steudten
52 * - Add signal handling (unix)
53 * - Add SIGHUP handler (unix)
54 * - Add creation of pidfile (unix)
55 * - Add action 'top' in rc file (RH)
56 * - Add entry 'SIGNALS' to manpage
57 * - Add exit message to logfile (unix)
59 * Revision 1.23 2001/11/07 00:02:13 steudten
60 * Add line number in error output for lineparsing for
61 * actionsfile and configfile.
62 * Special handling for CLF added.
64 * Revision 1.22 2001/11/05 23:43:05 steudten
65 * Add time+date to log files.
67 * Revision 1.21 2001/10/25 03:40:47 david__schmidt
68 * Change in porting tactics: OS/2's EMX porting layer doesn't allow multiple
69 * threads to call select() simultaneously. So, it's time to do a real, live,
70 * native OS/2 port. See defines for __EMX__ (the porting layer) vs. __OS2__
71 * (native). Both versions will work, but using __OS2__ offers multi-threading.
73 * Revision 1.20 2001/09/16 23:04:34 jongfoster
76 * Revision 1.19 2001/09/13 20:08:06 jongfoster
77 * Adding support for LOG_LEVEL_CGI
79 * Revision 1.18 2001/09/10 11:27:24 oes
80 * Declaration of w32_socket_strerr now conditional
82 * Revision 1.17 2001/09/10 10:17:13 oes
83 * Removed unused variable; Fixed sprintf format
85 * Revision 1.16 2001/07/30 22:08:36 jongfoster
86 * Tidying up #defines:
87 * - All feature #defines are now of the form FEATURE_xxx
88 * - Permanently turned off WIN_GUI_EDIT
89 * - Permanently turned on WEBDAV and SPLIT_PROXY_ARGS
91 * Revision 1.15 2001/07/29 17:41:10 jongfoster
92 * Now prints thread ID for each message (pthreads only)
94 * Revision 1.14 2001/07/19 19:03:48 haroon
95 * - Added case for LOG_LEVEL_POPUPS
97 * Revision 1.13 2001/07/13 13:58:58 oes
98 * - Added case for LOG_LEVEL_DEANIMATE
99 * - Removed all #ifdef PCRS
101 * Revision 1.12 2001/06/09 10:55:28 jongfoster
102 * Changing BUFSIZ ==> BUFFER_SIZE
104 * Revision 1.11 2001/06/01 18:14:49 jongfoster
105 * Changing the calls to strerr() to check HAVE_STRERR (which is defined
106 * in config.h if appropriate) rather than the NO_STRERR macro.
108 * Revision 1.10 2001/05/29 11:52:21 oes
109 * Conditional compilation of w32_socket_error
111 * Revision 1.9 2001/05/28 16:15:17 jongfoster
112 * Improved reporting of errors under Win32.
114 * Revision 1.8 2001/05/26 17:25:14 jongfoster
115 * Added support for CLF (Common Log Format) and fixed LOG_LEVEL_LOG
117 * Revision 1.7 2001/05/26 15:21:28 jongfoster
118 * Activity animation in Win32 GUI now works even if debug==0
120 * Revision 1.6 2001/05/25 21:55:08 jongfoster
121 * Now cleans up properly on FATAL (removes taskbar icon etc)
123 * Revision 1.5 2001/05/22 18:46:04 oes
125 * - Enabled filtering banners by size rather than URL
126 * by adding patterns that replace all standard banner
127 * sizes with the "Junkbuster" gif to the re_filterfile
129 * - Enabled filtering WebBugs by providing a pattern
130 * which kills all 1x1 images
132 * - Added support for PCRE_UNGREEDY behaviour to pcrs,
133 * which is selected by the (nonstandard and therefore
134 * capital) letter 'U' in the option string.
135 * It causes the quantifiers to be ungreedy by default.
136 * Appending a ? turns back to greedy (!).
138 * - Added a new interceptor ijb-send-banner, which
139 * sends back the "Junkbuster" gif. Without imagelist or
140 * MSIE detection support, or if tinygif = 1, or the
141 * URL isn't recognized as an imageurl, a lame HTML
142 * explanation is sent instead.
144 * - Added new feature, which permits blocking remote
145 * script redirects and firing back a local redirect
147 * The feature is conditionally compiled, i.e. it
148 * can be disabled with --disable-fast-redirects,
149 * plus it must be activated by a "fast-redirects"
150 * line in the config file, has its own log level
151 * and of course wants to be displayed by show-proxy-args
152 * Note: Boy, all the #ifdefs in 1001 locations and
153 * all the fumbling with configure.in and acconfig.h
154 * were *way* more work than the feature itself :-(
156 * - Because a generic redirect template was needed for
157 * this, tinygif = 3 now uses the same.
159 * - Moved GIFs, and other static HTTP response templates
164 * - Removed some >400 CRs again (Jon, you really worked
167 * Revision 1.4 2001/05/21 19:32:54 jongfoster
168 * Added another #ifdef _WIN_CONSOLE
170 * Revision 1.3 2001/05/20 01:11:40 jongfoster
171 * Added support for LOG_LEVEL_FATAL
172 * Renamed LOG_LEVEL_FRC to LOG_LEVEL_FORCE,
173 * and LOG_LEVEL_REF to LOG_LEVEL_RE_FILTER
175 * Revision 1.2 2001/05/17 22:42:01 oes
176 * - Cleaned CRLF's from the sources and related files
177 * - Repaired logging for REF and FRC
179 * Revision 1.1.1.1 2001/05/15 13:58:51 oes
180 * Initial import of version 2.9.3 source tree
183 *********************************************************************/
187 #include "miscutil.h"
194 #if !defined(_WIN32) && !defined(__OS2__)
196 #endif /* !defined(_WIN32) && !defined(__OS2__) */
200 #ifdef FEATURE_PTHREAD
202 #endif /* def FEATURE_PTHREAD */
208 #endif /* ndef _WIN_CONSOLE */
209 #endif /* def _WIN32 */
220 const char errlog_h_rcs[] = ERRLOG_H_VERSION;
224 * LOG_LEVEL_FATAL cannot be turned off. (There are
225 * some exceptional situations where we need to get a
226 * message to the user).
228 #define LOG_LEVEL_MINIMUM LOG_LEVEL_FATAL
230 /* where to log (default: stderr) */
231 static FILE *logfp = NULL;
233 /* logging detail level. */
234 static int debug = (LOG_LEVEL_FATAL | LOG_LEVEL_ERROR | LOG_LEVEL_INFO);
236 /* static functions */
237 static void fatal_error(const char * error_message);
239 static char *w32_socket_strerr(int errcode, char *tmp_buf);
242 /*********************************************************************
244 * Function : fatal_error
246 * Description : Displays a fatal error to standard error (or, on
247 * a WIN32 GUI, to a dialog box), and exits
248 * JunkBuster with status code 1.
251 * 1 : error_message = The error message to display.
253 * Returns : Does not return.
255 *********************************************************************/
256 static void fatal_error(const char * error_message)
258 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
259 MessageBox(g_hwndLogFrame, error_message, "Internet JunkBuster Error",
260 MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_SETFOREGROUND | MB_TOPMOST);
262 /* Cleanup - remove taskbar icon etc. */
265 #else /* if !defined(_WIN32) || defined(_WIN_CONSOLE) */
266 fputs(error_message, stderr);
267 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
277 /*********************************************************************
279 * Function : init_error_log
281 * Description : Initializes the logging module. Must call before
285 * 1 : prog_name = The program name.
286 * 2 : logfname = The logfile name, or NULL for stderr.
287 * 3 : debuglevel = The debugging level.
291 *********************************************************************/
292 void init_error_log(const char *prog_name, const char *logfname, int debuglevel)
296 /* FIXME RACE HAZARD: should start critical section error_log_use here */
298 /* set the logging detail level */
299 debug = debuglevel | LOG_LEVEL_MINIMUM;
301 if ((logfp != NULL) && (logfp != stderr))
303 log_error(LOG_LEVEL_INFO, "(Re-)Open logfile %s", logfname ? logfname : "none");
308 /* set the designated log file */
311 if( !(fp = fopen(logfname, "a")) )
313 log_error(LOG_LEVEL_FATAL, "init_error_log(): can't open logfile: %s", logfname);
316 /* set logging to be completely unbuffered */
322 log_error(LOG_LEVEL_INFO, "Internet JunkBuster version " VERSION);
323 if (prog_name != NULL)
325 log_error(LOG_LEVEL_INFO, "Program name: %s", prog_name);
328 /* FIXME RACE HAZARD: should end critical section error_log_use here */
330 } /* init_error_log */
333 /*********************************************************************
335 * Function : log_error
337 * Description : This is the error-reporting and logging function.
340 * 1 : loglevel = the type of message to be logged
341 * 2 : fmt = the main string we want logged, printf-like
342 * 3 : ... = arguments to be inserted in fmt (printf-like).
346 *********************************************************************/
347 void log_error(int loglevel, char *fmt, ...)
351 static char *outbuf_save = NULL;
354 long this_thread = 1; /* was: pthread_t this_thread;*/
360 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
362 * Irrespective of debug setting, a GET/POST/CONNECT makes
363 * the taskbar icon animate. (There is an option to disable
364 * this but checking that is handled inside LogShowActivity()).
366 if (loglevel == LOG_LEVEL_GPC)
370 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
372 /* verify if loglevel applies to current settings and bail out if negative */
373 if ((loglevel & debug) == 0)
378 /* FIXME get current thread id */
379 #ifdef FEATURE_PTHREAD
380 this_thread = (long)pthread_self();
381 #elif defined(_WIN32)
382 this_thread = GetCurrentThreadId();
383 #elif defined(__OS2__)
384 ulrc = DosGetInfoBlocks(&ptib, NULL);
386 this_thread = ptib -> tib_ptib2 -> tib2_ultid;
387 #endif /* def FEATURE_PTHREAD */
391 outbuf_save = outbuf = (char*)malloc(BUFFER_SIZE);
394 outbuf = outbuf_save;
398 * Write timestamp into tempbuf.
400 * Complex because not all OSs have tm_gmtoff or
401 * the %z field in strftime()
406 #ifdef HAVE_LOCALTIME_R
407 tm_now = *localtime_r(&now, &tm_now);
409 tm_now = *localtime (&now);
411 strftime(outbuf, BUFFER_SIZE-6, "%b %d %H:%M:%S ", &tm_now);
412 outbuf += strlen( outbuf );
416 case LOG_LEVEL_ERROR:
417 outc = sprintf(outbuf, "IJB(%ld) Error: ", this_thread);
419 case LOG_LEVEL_FATAL:
420 outc = sprintf(outbuf, "IJB(%ld) Fatal error: ", this_thread);
423 outc = sprintf(outbuf, "IJB(%ld) Request: ", this_thread);
425 case LOG_LEVEL_CONNECT:
426 outc = sprintf(outbuf, "IJB(%ld) Connect: ", this_thread);
429 outc = sprintf(outbuf, "IJB(%ld) Writing: ", this_thread);
431 case LOG_LEVEL_HEADER:
432 outc = sprintf(outbuf, "IJB(%ld) Header: ", this_thread);
435 outc = sprintf(outbuf, "IJB(%ld) Info: ", this_thread);
437 case LOG_LEVEL_RE_FILTER:
438 outc = sprintf(outbuf, "IJB(%ld) Re-Filter: ", this_thread);
440 #ifdef FEATURE_FORCE_LOAD
441 case LOG_LEVEL_FORCE:
442 outc = sprintf(outbuf, "IJB(%ld) Force: ", this_thread);
444 #endif /* def FEATURE_FORCE_LOAD */
445 #ifdef FEATURE_FAST_REDIRECTS
446 case LOG_LEVEL_REDIRECTS:
447 outc = sprintf(outbuf, "IJB(%ld) Redirect: ", this_thread);
449 #endif /* def FEATURE_FAST_REDIRECTS */
450 case LOG_LEVEL_DEANIMATE:
451 outc = sprintf(outbuf, "IJB(%ld) Gif-Deanimate: ", this_thread);
454 outbuf = outbuf_save;
458 #ifdef FEATURE_KILL_POPUPS
459 case LOG_LEVEL_POPUPS:
460 outc = sprintf(outbuf, "IJB(%ld) Kill-Popups: ", this_thread);
462 #endif /* def FEATURE_KILL_POPUPS */
464 outc = sprintf(outbuf, "IJB(%ld) CGI: ", this_thread);
467 outc = sprintf(outbuf, "IJB(%ld) UNKNOWN LOG TYPE(%d): ", this_thread, loglevel);
471 /* get ready to scan var. args. */
474 /* build formatted message from fmt and var-args */
475 while ((*src) && (outc < BUFFER_SIZE-2))
477 char tempbuf[BUFFER_SIZE];
496 outbuf[outc++] = '%';
499 ival = va_arg( ap, int );
501 outc += sprintf(tempbuf, "%d", ival);
502 if (outc < BUFFER_SIZE-1)
504 strcpy(outbuf + oldoutc, tempbuf);
508 outbuf[oldoutc] = '\0';
512 uval = va_arg( ap, unsigned );
514 outc += sprintf(tempbuf, "%u", uval);
515 if (outc < BUFFER_SIZE-1)
517 strcpy(outbuf + oldoutc, tempbuf);
521 outbuf[oldoutc] = '\0';
525 /* this is a modifier that must be followed by u or d */
529 lval = va_arg( ap, long );
531 outc += sprintf(tempbuf, "%ld", lval);
535 ulval = va_arg( ap, unsigned long );
537 outc += sprintf(tempbuf, "%lu", ulval);
542 sprintf(outbuf, "IJB(%ld) Error: log_error(): Bad format string:\n"
544 "Exiting.", this_thread, fmt);
545 /* FIXME RACE HAZARD: should start critical section error_log_use here */
550 fputs(outbuf, logfp);
551 /* FIXME RACE HAZARD: should end critical section error_log_use here */
556 if (outc < BUFFER_SIZE-1)
558 strcpy(outbuf + oldoutc, tempbuf);
562 outbuf[oldoutc] = '\0';
567 * Note that char paramaters are converted to int, so we need to
568 * pass "int" to va_arg. (See K&R, 2nd ed, section A7.3.2, page 202)
570 outbuf[outc++] = (char) va_arg( ap, int );
573 sval = va_arg( ap, char * );
575 outc += strlen(sval);
576 if (outc < BUFFER_SIZE-1)
578 strcpy(outbuf + oldoutc, sval);
582 outbuf[oldoutc] = '\0';
586 /* Non-standard: Print a counted string. Takes 2 parameters:
587 * int length, const char * string
589 ival = va_arg( ap, int );
590 sval = va_arg( ap, char * );
597 if (outc < BUFFER_SIZE-1)
599 memcpy(outbuf + oldoutc, sval, ival);
603 outbuf[oldoutc] = '\0';
607 /* Non-standard: Print error code from errno */
609 ival = WSAGetLastError();
610 sval = w32_socket_strerr(ival, tempbuf);
615 sval = strerror(ival);
616 #else /* ifndef _WIN32 */
619 sval = strerror(ival);
620 #else /* ifndef HAVE_STRERROR */
622 #endif /* ndef HAVE_STRERROR */
625 sprintf(tempbuf, "(errno = %d)", ival);
628 #endif /* ndef _WIN32 */
630 outc += strlen(sval);
631 if (outc < BUFFER_SIZE-1)
633 strcpy(outbuf + oldoutc, sval);
637 outbuf[oldoutc] = '\0';
641 /* Non-standard: Print a Common Log File timestamp */
644 * Write timestamp into tempbuf.
646 * Complex because not all OSs have tm_gmtoff or
647 * the %z field in strftime()
652 #ifdef HAVE_LOCALTIME_R
658 gmt = *gmtime_r(&now, &gmt);
662 #ifdef HAVE_LOCALTIME_R
663 tm_now = localtime_r(&now, &dummy);
665 tm_now = localtime (&now);
667 days = tm_now->tm_yday - gmt.tm_yday;
668 hrs = ((days < -1 ? 24 : 1 < days ? -24 : days * 24) + tm_now->tm_hour - gmt.tm_hour);
669 mins = hrs * 60 + tm_now->tm_min - gmt.tm_min;
670 strftime (tempbuf, BUFFER_SIZE-6, "%d/%b/%Y:%H:%M:%S ", tm_now);
671 sprintf (tempbuf + strlen(tempbuf), "%+03d%02d", mins / 60, abs(mins) % 60);
674 outc += strlen(tempbuf);
675 if (outc < BUFFER_SIZE-1)
677 strcpy(outbuf + oldoutc, tempbuf);
681 outbuf[oldoutc] = '\0';
685 sprintf(outbuf, "IJB(%ld) Error: log_error(): Bad format string:\n"
687 "Exiting.", this_thread, fmt);
688 /* FIXME RACE HAZARD: should start critical section error_log_use here */
693 fputs(outbuf_save, logfp);
694 /* FIXME RACE HAZARD: should end critical section error_log_use here */
695 fatal_error(outbuf_save);
703 /* done with var. args */
706 if (outc >= BUFFER_SIZE-2)
708 /* insufficient room for newline and trailing null. */
710 static const char warning[] = "... [too long, truncated]\n";
712 if (outc < BUFFER_SIZE)
714 /* Need to add terminating null in this case. */
718 /* Truncate output */
719 outbuf[BUFFER_SIZE - sizeof(warning)] = '\0';
722 strcat(outbuf, warning);
726 /* Add terminating newline and null */
727 outbuf[outc++] = '\n';
731 /* FIXME RACE HAZARD: should start critical section error_log_use here */
733 /* deal with glibc stupidity - it won't let you initialize logfp */
739 fputs(outbuf_save, logfp);
741 if (loglevel == LOG_LEVEL_FATAL)
743 fatal_error(outbuf_save);
747 /* FIXME RACE HAZARD: should end critical section error_log_use here */
749 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
750 /* Write to display */
751 LogPutString(outbuf_save);
752 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
758 /*********************************************************************
760 * Function : w32_socket_strerr
762 * Description : Translate the return value from WSAGetLastError()
766 * 1 : errcode = The return value from WSAGetLastError().
767 * 2 : tmp_buf = A temporary buffer that might be used to
770 * Returns : String representing the error code. This may be
771 * a global string constant or a string stored in
774 *********************************************************************/
775 static char *w32_socket_strerr(int errcode, char *tmp_buf)
777 #define TEXT_FOR_ERROR(code,text) \
778 if (errcode == code) \
780 return #code " - " text; \
783 TEXT_FOR_ERROR(WSAEACCES, "Permission denied")
784 TEXT_FOR_ERROR(WSAEADDRINUSE, "Address already in use.")
785 TEXT_FOR_ERROR(WSAEADDRNOTAVAIL, "Cannot assign requested address.");
786 TEXT_FOR_ERROR(WSAEAFNOSUPPORT, "Address family not supported by protocol family.");
787 TEXT_FOR_ERROR(WSAEALREADY, "Operation already in progress.");
788 TEXT_FOR_ERROR(WSAECONNABORTED, "Software caused connection abort.");
789 TEXT_FOR_ERROR(WSAECONNREFUSED, "Connection refused.");
790 TEXT_FOR_ERROR(WSAECONNRESET, "Connection reset by peer.");
791 TEXT_FOR_ERROR(WSAEDESTADDRREQ, "Destination address required.");
792 TEXT_FOR_ERROR(WSAEFAULT, "Bad address.");
793 TEXT_FOR_ERROR(WSAEHOSTDOWN, "Host is down.");
794 TEXT_FOR_ERROR(WSAEHOSTUNREACH, "No route to host.");
795 TEXT_FOR_ERROR(WSAEINPROGRESS, "Operation now in progress.");
796 TEXT_FOR_ERROR(WSAEINTR, "Interrupted function call.");
797 TEXT_FOR_ERROR(WSAEINVAL, "Invalid argument.");
798 TEXT_FOR_ERROR(WSAEISCONN, "Socket is already connected.");
799 TEXT_FOR_ERROR(WSAEMFILE, "Too many open sockets.");
800 TEXT_FOR_ERROR(WSAEMSGSIZE, "Message too long.");
801 TEXT_FOR_ERROR(WSAENETDOWN, "Network is down.");
802 TEXT_FOR_ERROR(WSAENETRESET, "Network dropped connection on reset.");
803 TEXT_FOR_ERROR(WSAENETUNREACH, "Network is unreachable.");
804 TEXT_FOR_ERROR(WSAENOBUFS, "No buffer space available.");
805 TEXT_FOR_ERROR(WSAENOPROTOOPT, "Bad protocol option.");
806 TEXT_FOR_ERROR(WSAENOTCONN, "Socket is not connected.");
807 TEXT_FOR_ERROR(WSAENOTSOCK, "Socket operation on non-socket.");
808 TEXT_FOR_ERROR(WSAEOPNOTSUPP, "Operation not supported.");
809 TEXT_FOR_ERROR(WSAEPFNOSUPPORT, "Protocol family not supported.");
810 TEXT_FOR_ERROR(WSAEPROCLIM, "Too many processes.");
811 TEXT_FOR_ERROR(WSAEPROTONOSUPPORT, "Protocol not supported.");
812 TEXT_FOR_ERROR(WSAEPROTOTYPE, "Protocol wrong type for socket.");
813 TEXT_FOR_ERROR(WSAESHUTDOWN, "Cannot send after socket shutdown.");
814 TEXT_FOR_ERROR(WSAESOCKTNOSUPPORT, "Socket type not supported.");
815 TEXT_FOR_ERROR(WSAETIMEDOUT, "Connection timed out.");
816 TEXT_FOR_ERROR(WSAEWOULDBLOCK, "Resource temporarily unavailable.");
817 TEXT_FOR_ERROR(WSAHOST_NOT_FOUND, "Host not found.");
818 TEXT_FOR_ERROR(WSANOTINITIALISED, "Successful WSAStartup not yet performed.");
819 TEXT_FOR_ERROR(WSANO_DATA, "Valid name, no data record of requested type.");
820 TEXT_FOR_ERROR(WSANO_RECOVERY, "This is a non-recoverable error.");
821 TEXT_FOR_ERROR(WSASYSNOTREADY, "Network subsystem is unavailable.");
822 TEXT_FOR_ERROR(WSATRY_AGAIN, "Non-authoritative host not found.");
823 TEXT_FOR_ERROR(WSAVERNOTSUPPORTED, "WINSOCK.DLL version out of range.");
824 TEXT_FOR_ERROR(WSAEDISCON, "Graceful shutdown in progress.");
826 * The following error codes are documented in the Microsoft WinSock
827 * reference guide, but don't actually exist.
829 * TEXT_FOR_ERROR(WSA_INVALID_HANDLE, "Specified event object handle is invalid.");
830 * TEXT_FOR_ERROR(WSA_INVALID_PARAMETER, "One or more parameters are invalid.");
831 * TEXT_FOR_ERROR(WSAINVALIDPROCTABLE, "Invalid procedure table from service provider.");
832 * TEXT_FOR_ERROR(WSAINVALIDPROVIDER, "Invalid service provider version number.");
833 * TEXT_FOR_ERROR(WSA_IO_PENDING, "Overlapped operations will complete later.");
834 * TEXT_FOR_ERROR(WSA_IO_INCOMPLETE, "Overlapped I/O event object not in signaled state.");
835 * TEXT_FOR_ERROR(WSA_NOT_ENOUGH_MEMORY, "Insufficient memory available.");
836 * TEXT_FOR_ERROR(WSAPROVIDERFAILEDINIT, "Unable to initialize a service provider.");
837 * TEXT_FOR_ERROR(WSASYSCALLFAILURE, "System call failure.");
838 * TEXT_FOR_ERROR(WSA_OPERATION_ABORTED, "Overlapped operation aborted.");
841 sprintf(tmp_buf, "(error number %d)", errcode);
844 #endif /* def _WIN32 */