1 const char errlog_rcs[] = "$Id: errlog.c,v 1.30 2002/03/05 22:43:45 david__schmidt 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 1.30 2002/03/05 22:43:45 david__schmidt
37 * - Better error reporting on OS/2
38 * - Fix double-slash comment (oops)
40 * Revision 1.29 2002/03/04 23:45:13 jongfoster
41 * Printing thread ID if using Win32 native threads
43 * Revision 1.28 2002/03/04 17:59:59 oes
44 * Deleted deletePidFile(), cosmetics
46 * Revision 1.27 2002/03/04 02:08:01 david__schmidt
47 * Enable web editing of actions file on OS/2 (it had been broken all this time!)
49 * Revision 1.26 2002/01/09 19:05:45 steudten
50 * Fix big memory leak.
52 * Revision 1.25 2002/01/09 14:32:08 oes
53 * Added support for gmtime_r and localtime_r.
55 * Revision 1.24 2001/12/30 14:07:32 steudten
56 * - Add signal handling (unix)
57 * - Add SIGHUP handler (unix)
58 * - Add creation of pidfile (unix)
59 * - Add action 'top' in rc file (RH)
60 * - Add entry 'SIGNALS' to manpage
61 * - Add exit message to logfile (unix)
63 * Revision 1.23 2001/11/07 00:02:13 steudten
64 * Add line number in error output for lineparsing for
65 * actionsfile and configfile.
66 * Special handling for CLF added.
68 * Revision 1.22 2001/11/05 23:43:05 steudten
69 * Add time+date to log files.
71 * Revision 1.21 2001/10/25 03:40:47 david__schmidt
72 * Change in porting tactics: OS/2's EMX porting layer doesn't allow multiple
73 * threads to call select() simultaneously. So, it's time to do a real, live,
74 * native OS/2 port. See defines for __EMX__ (the porting layer) vs. __OS2__
75 * (native). Both versions will work, but using __OS2__ offers multi-threading.
77 * Revision 1.20 2001/09/16 23:04:34 jongfoster
80 * Revision 1.19 2001/09/13 20:08:06 jongfoster
81 * Adding support for LOG_LEVEL_CGI
83 * Revision 1.18 2001/09/10 11:27:24 oes
84 * Declaration of w32_socket_strerr now conditional
86 * Revision 1.17 2001/09/10 10:17:13 oes
87 * Removed unused variable; Fixed sprintf format
89 * Revision 1.16 2001/07/30 22:08:36 jongfoster
90 * Tidying up #defines:
91 * - All feature #defines are now of the form FEATURE_xxx
92 * - Permanently turned off WIN_GUI_EDIT
93 * - Permanently turned on WEBDAV and SPLIT_PROXY_ARGS
95 * Revision 1.15 2001/07/29 17:41:10 jongfoster
96 * Now prints thread ID for each message (pthreads only)
98 * Revision 1.14 2001/07/19 19:03:48 haroon
99 * - Added case for LOG_LEVEL_POPUPS
101 * Revision 1.13 2001/07/13 13:58:58 oes
102 * - Added case for LOG_LEVEL_DEANIMATE
103 * - Removed all #ifdef PCRS
105 * Revision 1.12 2001/06/09 10:55:28 jongfoster
106 * Changing BUFSIZ ==> BUFFER_SIZE
108 * Revision 1.11 2001/06/01 18:14:49 jongfoster
109 * Changing the calls to strerr() to check HAVE_STRERR (which is defined
110 * in config.h if appropriate) rather than the NO_STRERR macro.
112 * Revision 1.10 2001/05/29 11:52:21 oes
113 * Conditional compilation of w32_socket_error
115 * Revision 1.9 2001/05/28 16:15:17 jongfoster
116 * Improved reporting of errors under Win32.
118 * Revision 1.8 2001/05/26 17:25:14 jongfoster
119 * Added support for CLF (Common Log Format) and fixed LOG_LEVEL_LOG
121 * Revision 1.7 2001/05/26 15:21:28 jongfoster
122 * Activity animation in Win32 GUI now works even if debug==0
124 * Revision 1.6 2001/05/25 21:55:08 jongfoster
125 * Now cleans up properly on FATAL (removes taskbar icon etc)
127 * Revision 1.5 2001/05/22 18:46:04 oes
129 * - Enabled filtering banners by size rather than URL
130 * by adding patterns that replace all standard banner
131 * sizes with the "Junkbuster" gif to the re_filterfile
133 * - Enabled filtering WebBugs by providing a pattern
134 * which kills all 1x1 images
136 * - Added support for PCRE_UNGREEDY behaviour to pcrs,
137 * which is selected by the (nonstandard and therefore
138 * capital) letter 'U' in the option string.
139 * It causes the quantifiers to be ungreedy by default.
140 * Appending a ? turns back to greedy (!).
142 * - Added a new interceptor ijb-send-banner, which
143 * sends back the "Junkbuster" gif. Without imagelist or
144 * MSIE detection support, or if tinygif = 1, or the
145 * URL isn't recognized as an imageurl, a lame HTML
146 * explanation is sent instead.
148 * - Added new feature, which permits blocking remote
149 * script redirects and firing back a local redirect
151 * The feature is conditionally compiled, i.e. it
152 * can be disabled with --disable-fast-redirects,
153 * plus it must be activated by a "fast-redirects"
154 * line in the config file, has its own log level
155 * and of course wants to be displayed by show-proxy-args
156 * Note: Boy, all the #ifdefs in 1001 locations and
157 * all the fumbling with configure.in and acconfig.h
158 * were *way* more work than the feature itself :-(
160 * - Because a generic redirect template was needed for
161 * this, tinygif = 3 now uses the same.
163 * - Moved GIFs, and other static HTTP response templates
168 * - Removed some >400 CRs again (Jon, you really worked
171 * Revision 1.4 2001/05/21 19:32:54 jongfoster
172 * Added another #ifdef _WIN_CONSOLE
174 * Revision 1.3 2001/05/20 01:11:40 jongfoster
175 * Added support for LOG_LEVEL_FATAL
176 * Renamed LOG_LEVEL_FRC to LOG_LEVEL_FORCE,
177 * and LOG_LEVEL_REF to LOG_LEVEL_RE_FILTER
179 * Revision 1.2 2001/05/17 22:42:01 oes
180 * - Cleaned CRLF's from the sources and related files
181 * - Repaired logging for REF and FRC
183 * Revision 1.1.1.1 2001/05/15 13:58:51 oes
184 * Initial import of version 2.9.3 source tree
187 *********************************************************************/
191 #include "miscutil.h"
198 #if !defined(_WIN32) && !defined(__OS2__)
200 #endif /* !defined(_WIN32) && !defined(__OS2__) */
204 #ifdef FEATURE_PTHREAD
206 #endif /* def FEATURE_PTHREAD */
212 #endif /* ndef _WIN_CONSOLE */
213 #endif /* def _WIN32 */
224 const char errlog_h_rcs[] = ERRLOG_H_VERSION;
228 * LOG_LEVEL_FATAL cannot be turned off. (There are
229 * some exceptional situations where we need to get a
230 * message to the user).
232 #define LOG_LEVEL_MINIMUM LOG_LEVEL_FATAL
234 /* where to log (default: stderr) */
235 static FILE *logfp = NULL;
237 /* logging detail level. */
238 static int debug = (LOG_LEVEL_FATAL | LOG_LEVEL_ERROR | LOG_LEVEL_INFO);
240 /* static functions */
241 static void fatal_error(const char * error_message);
243 static char *w32_socket_strerr(int errcode, char *tmp_buf);
246 /*********************************************************************
248 * Function : fatal_error
250 * Description : Displays a fatal error to standard error (or, on
251 * a WIN32 GUI, to a dialog box), and exits
252 * JunkBuster with status code 1.
255 * 1 : error_message = The error message to display.
257 * Returns : Does not return.
259 *********************************************************************/
260 static void fatal_error(const char * error_message)
262 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
263 MessageBox(g_hwndLogFrame, error_message, "Internet JunkBuster Error",
264 MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_SETFOREGROUND | MB_TOPMOST);
266 /* Cleanup - remove taskbar icon etc. */
269 #else /* if !defined(_WIN32) || defined(_WIN_CONSOLE) */
270 fputs(error_message, stderr);
271 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
281 /*********************************************************************
283 * Function : init_error_log
285 * Description : Initializes the logging module. Must call before
289 * 1 : prog_name = The program name.
290 * 2 : logfname = The logfile name, or NULL for stderr.
291 * 3 : debuglevel = The debugging level.
295 *********************************************************************/
296 void init_error_log(const char *prog_name, const char *logfname, int debuglevel)
300 /* FIXME RACE HAZARD: should start critical section error_log_use here */
302 /* set the logging detail level */
303 debug = debuglevel | LOG_LEVEL_MINIMUM;
305 if ((logfp != NULL) && (logfp != stderr))
307 log_error(LOG_LEVEL_INFO, "(Re-)Open logfile %s", logfname ? logfname : "none");
312 /* set the designated log file */
315 if( !(fp = fopen(logfname, "a")) )
317 log_error(LOG_LEVEL_FATAL, "init_error_log(): can't open logfile: %s", logfname);
320 /* set logging to be completely unbuffered */
326 log_error(LOG_LEVEL_INFO, "Internet JunkBuster version " VERSION);
327 if (prog_name != NULL)
329 log_error(LOG_LEVEL_INFO, "Program name: %s", prog_name);
332 /* FIXME RACE HAZARD: should end critical section error_log_use here */
334 } /* init_error_log */
337 /*********************************************************************
339 * Function : log_error
341 * Description : This is the error-reporting and logging function.
344 * 1 : loglevel = the type of message to be logged
345 * 2 : fmt = the main string we want logged, printf-like
346 * 3 : ... = arguments to be inserted in fmt (printf-like).
350 *********************************************************************/
351 void log_error(int loglevel, char *fmt, ...)
355 static char *outbuf_save = NULL;
358 long this_thread = 1; /* was: pthread_t this_thread;*/
364 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
366 * Irrespective of debug setting, a GET/POST/CONNECT makes
367 * the taskbar icon animate. (There is an option to disable
368 * this but checking that is handled inside LogShowActivity()).
370 if (loglevel == LOG_LEVEL_GPC)
374 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
376 /* verify if loglevel applies to current settings and bail out if negative */
377 if ((loglevel & debug) == 0)
382 /* FIXME get current thread id */
383 #ifdef FEATURE_PTHREAD
384 this_thread = (long)pthread_self();
385 #elif defined(_WIN32)
386 this_thread = GetCurrentThreadId();
387 #elif defined(__OS2__)
388 ulrc = DosGetInfoBlocks(&ptib, NULL);
390 this_thread = ptib -> tib_ptib2 -> tib2_ultid;
391 #endif /* def FEATURE_PTHREAD */
395 outbuf_save = outbuf = (char*)malloc(BUFFER_SIZE);
398 outbuf = outbuf_save;
402 * Write timestamp into tempbuf.
404 * Complex because not all OSs have tm_gmtoff or
405 * the %z field in strftime()
410 #ifdef HAVE_LOCALTIME_R
411 tm_now = *localtime_r(&now, &tm_now);
413 tm_now = *localtime (&now);
415 strftime(outbuf, BUFFER_SIZE-6, "%b %d %H:%M:%S ", &tm_now);
416 outbuf += strlen( outbuf );
420 case LOG_LEVEL_ERROR:
421 outc = sprintf(outbuf, "IJB(%ld) Error: ", this_thread);
423 case LOG_LEVEL_FATAL:
424 outc = sprintf(outbuf, "IJB(%ld) Fatal error: ", this_thread);
427 outc = sprintf(outbuf, "IJB(%ld) Request: ", this_thread);
429 case LOG_LEVEL_CONNECT:
430 outc = sprintf(outbuf, "IJB(%ld) Connect: ", this_thread);
433 outc = sprintf(outbuf, "IJB(%ld) Writing: ", this_thread);
435 case LOG_LEVEL_HEADER:
436 outc = sprintf(outbuf, "IJB(%ld) Header: ", this_thread);
439 outc = sprintf(outbuf, "IJB(%ld) Info: ", this_thread);
441 case LOG_LEVEL_RE_FILTER:
442 outc = sprintf(outbuf, "IJB(%ld) Re-Filter: ", this_thread);
444 #ifdef FEATURE_FORCE_LOAD
445 case LOG_LEVEL_FORCE:
446 outc = sprintf(outbuf, "IJB(%ld) Force: ", this_thread);
448 #endif /* def FEATURE_FORCE_LOAD */
449 #ifdef FEATURE_FAST_REDIRECTS
450 case LOG_LEVEL_REDIRECTS:
451 outc = sprintf(outbuf, "IJB(%ld) Redirect: ", this_thread);
453 #endif /* def FEATURE_FAST_REDIRECTS */
454 case LOG_LEVEL_DEANIMATE:
455 outc = sprintf(outbuf, "IJB(%ld) Gif-Deanimate: ", this_thread);
458 outbuf = outbuf_save;
462 #ifdef FEATURE_KILL_POPUPS
463 case LOG_LEVEL_POPUPS:
464 outc = sprintf(outbuf, "IJB(%ld) Kill-Popups: ", this_thread);
466 #endif /* def FEATURE_KILL_POPUPS */
468 outc = sprintf(outbuf, "IJB(%ld) CGI: ", this_thread);
471 outc = sprintf(outbuf, "IJB(%ld) UNKNOWN LOG TYPE(%d): ", this_thread, loglevel);
475 /* get ready to scan var. args. */
478 /* build formatted message from fmt and var-args */
479 while ((*src) && (outc < BUFFER_SIZE-2))
481 char tempbuf[BUFFER_SIZE];
500 outbuf[outc++] = '%';
503 ival = va_arg( ap, int );
505 outc += sprintf(tempbuf, "%d", ival);
506 if (outc < BUFFER_SIZE-1)
508 strcpy(outbuf + oldoutc, tempbuf);
512 outbuf[oldoutc] = '\0';
516 uval = va_arg( ap, unsigned );
518 outc += sprintf(tempbuf, "%u", uval);
519 if (outc < BUFFER_SIZE-1)
521 strcpy(outbuf + oldoutc, tempbuf);
525 outbuf[oldoutc] = '\0';
529 /* this is a modifier that must be followed by u or d */
533 lval = va_arg( ap, long );
535 outc += sprintf(tempbuf, "%ld", lval);
539 ulval = va_arg( ap, unsigned long );
541 outc += sprintf(tempbuf, "%lu", ulval);
546 sprintf(outbuf, "IJB(%ld) Error: log_error(): Bad format string:\n"
548 "Exiting.", this_thread, fmt);
549 /* FIXME RACE HAZARD: should start critical section error_log_use here */
554 fputs(outbuf, logfp);
555 /* FIXME RACE HAZARD: should end critical section error_log_use here */
560 if (outc < BUFFER_SIZE-1)
562 strcpy(outbuf + oldoutc, tempbuf);
566 outbuf[oldoutc] = '\0';
571 * Note that char paramaters are converted to int, so we need to
572 * pass "int" to va_arg. (See K&R, 2nd ed, section A7.3.2, page 202)
574 outbuf[outc++] = (char) va_arg( ap, int );
577 sval = va_arg( ap, char * );
579 outc += strlen(sval);
580 if (outc < BUFFER_SIZE-1)
582 strcpy(outbuf + oldoutc, sval);
586 outbuf[oldoutc] = '\0';
590 /* Non-standard: Print a counted string. Takes 2 parameters:
591 * int length, const char * string
593 ival = va_arg( ap, int );
594 sval = va_arg( ap, char * );
601 if (outc < BUFFER_SIZE-1)
603 memcpy(outbuf + oldoutc, sval, ival);
607 outbuf[oldoutc] = '\0';
611 /* Non-standard: Print error code from errno */
613 ival = WSAGetLastError();
614 sval = w32_socket_strerr(ival, tempbuf);
619 sval = strerror(ival);
620 #else /* ifndef _WIN32 */
623 sval = strerror(ival);
624 #else /* ifndef HAVE_STRERROR */
626 #endif /* ndef HAVE_STRERROR */
629 sprintf(tempbuf, "(errno = %d)", ival);
632 #endif /* ndef _WIN32 */
634 outc += strlen(sval);
635 if (outc < BUFFER_SIZE-1)
637 strcpy(outbuf + oldoutc, sval);
641 outbuf[oldoutc] = '\0';
645 /* Non-standard: Print a Common Log File timestamp */
648 * Write timestamp into tempbuf.
650 * Complex because not all OSs have tm_gmtoff or
651 * the %z field in strftime()
656 #ifdef HAVE_LOCALTIME_R
662 gmt = *gmtime_r(&now, &gmt);
666 #ifdef HAVE_LOCALTIME_R
667 tm_now = localtime_r(&now, &dummy);
669 tm_now = localtime (&now);
671 days = tm_now->tm_yday - gmt.tm_yday;
672 hrs = ((days < -1 ? 24 : 1 < days ? -24 : days * 24) + tm_now->tm_hour - gmt.tm_hour);
673 mins = hrs * 60 + tm_now->tm_min - gmt.tm_min;
674 strftime (tempbuf, BUFFER_SIZE-6, "%d/%b/%Y:%H:%M:%S ", tm_now);
675 sprintf (tempbuf + strlen(tempbuf), "%+03d%02d", mins / 60, abs(mins) % 60);
678 outc += strlen(tempbuf);
679 if (outc < BUFFER_SIZE-1)
681 strcpy(outbuf + oldoutc, tempbuf);
685 outbuf[oldoutc] = '\0';
689 sprintf(outbuf, "IJB(%ld) Error: log_error(): Bad format string:\n"
691 "Exiting.", this_thread, fmt);
692 /* FIXME RACE HAZARD: should start critical section error_log_use here */
697 fputs(outbuf_save, logfp);
698 /* FIXME RACE HAZARD: should end critical section error_log_use here */
699 fatal_error(outbuf_save);
707 /* done with var. args */
710 if (outc >= BUFFER_SIZE-2)
712 /* insufficient room for newline and trailing null. */
714 static const char warning[] = "... [too long, truncated]\n";
716 if (outc < BUFFER_SIZE)
718 /* Need to add terminating null in this case. */
722 /* Truncate output */
723 outbuf[BUFFER_SIZE - sizeof(warning)] = '\0';
726 strcat(outbuf, warning);
730 /* Add terminating newline and null */
731 outbuf[outc++] = '\n';
735 /* FIXME RACE HAZARD: should start critical section error_log_use here */
737 /* deal with glibc stupidity - it won't let you initialize logfp */
743 fputs(outbuf_save, logfp);
745 if (loglevel == LOG_LEVEL_FATAL)
747 fatal_error(outbuf_save);
751 /* FIXME RACE HAZARD: should end critical section error_log_use here */
753 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
754 /* Write to display */
755 LogPutString(outbuf_save);
756 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
762 /*********************************************************************
764 * Function : w32_socket_strerr
766 * Description : Translate the return value from WSAGetLastError()
770 * 1 : errcode = The return value from WSAGetLastError().
771 * 2 : tmp_buf = A temporary buffer that might be used to
774 * Returns : String representing the error code. This may be
775 * a global string constant or a string stored in
778 *********************************************************************/
779 static char *w32_socket_strerr(int errcode, char *tmp_buf)
781 #define TEXT_FOR_ERROR(code,text) \
782 if (errcode == code) \
784 return #code " - " text; \
787 TEXT_FOR_ERROR(WSAEACCES, "Permission denied")
788 TEXT_FOR_ERROR(WSAEADDRINUSE, "Address already in use.")
789 TEXT_FOR_ERROR(WSAEADDRNOTAVAIL, "Cannot assign requested address.");
790 TEXT_FOR_ERROR(WSAEAFNOSUPPORT, "Address family not supported by protocol family.");
791 TEXT_FOR_ERROR(WSAEALREADY, "Operation already in progress.");
792 TEXT_FOR_ERROR(WSAECONNABORTED, "Software caused connection abort.");
793 TEXT_FOR_ERROR(WSAECONNREFUSED, "Connection refused.");
794 TEXT_FOR_ERROR(WSAECONNRESET, "Connection reset by peer.");
795 TEXT_FOR_ERROR(WSAEDESTADDRREQ, "Destination address required.");
796 TEXT_FOR_ERROR(WSAEFAULT, "Bad address.");
797 TEXT_FOR_ERROR(WSAEHOSTDOWN, "Host is down.");
798 TEXT_FOR_ERROR(WSAEHOSTUNREACH, "No route to host.");
799 TEXT_FOR_ERROR(WSAEINPROGRESS, "Operation now in progress.");
800 TEXT_FOR_ERROR(WSAEINTR, "Interrupted function call.");
801 TEXT_FOR_ERROR(WSAEINVAL, "Invalid argument.");
802 TEXT_FOR_ERROR(WSAEISCONN, "Socket is already connected.");
803 TEXT_FOR_ERROR(WSAEMFILE, "Too many open sockets.");
804 TEXT_FOR_ERROR(WSAEMSGSIZE, "Message too long.");
805 TEXT_FOR_ERROR(WSAENETDOWN, "Network is down.");
806 TEXT_FOR_ERROR(WSAENETRESET, "Network dropped connection on reset.");
807 TEXT_FOR_ERROR(WSAENETUNREACH, "Network is unreachable.");
808 TEXT_FOR_ERROR(WSAENOBUFS, "No buffer space available.");
809 TEXT_FOR_ERROR(WSAENOPROTOOPT, "Bad protocol option.");
810 TEXT_FOR_ERROR(WSAENOTCONN, "Socket is not connected.");
811 TEXT_FOR_ERROR(WSAENOTSOCK, "Socket operation on non-socket.");
812 TEXT_FOR_ERROR(WSAEOPNOTSUPP, "Operation not supported.");
813 TEXT_FOR_ERROR(WSAEPFNOSUPPORT, "Protocol family not supported.");
814 TEXT_FOR_ERROR(WSAEPROCLIM, "Too many processes.");
815 TEXT_FOR_ERROR(WSAEPROTONOSUPPORT, "Protocol not supported.");
816 TEXT_FOR_ERROR(WSAEPROTOTYPE, "Protocol wrong type for socket.");
817 TEXT_FOR_ERROR(WSAESHUTDOWN, "Cannot send after socket shutdown.");
818 TEXT_FOR_ERROR(WSAESOCKTNOSUPPORT, "Socket type not supported.");
819 TEXT_FOR_ERROR(WSAETIMEDOUT, "Connection timed out.");
820 TEXT_FOR_ERROR(WSAEWOULDBLOCK, "Resource temporarily unavailable.");
821 TEXT_FOR_ERROR(WSAHOST_NOT_FOUND, "Host not found.");
822 TEXT_FOR_ERROR(WSANOTINITIALISED, "Successful WSAStartup not yet performed.");
823 TEXT_FOR_ERROR(WSANO_DATA, "Valid name, no data record of requested type.");
824 TEXT_FOR_ERROR(WSANO_RECOVERY, "This is a non-recoverable error.");
825 TEXT_FOR_ERROR(WSASYSNOTREADY, "Network subsystem is unavailable.");
826 TEXT_FOR_ERROR(WSATRY_AGAIN, "Non-authoritative host not found.");
827 TEXT_FOR_ERROR(WSAVERNOTSUPPORTED, "WINSOCK.DLL version out of range.");
828 TEXT_FOR_ERROR(WSAEDISCON, "Graceful shutdown in progress.");
830 * The following error codes are documented in the Microsoft WinSock
831 * reference guide, but don't actually exist.
833 * TEXT_FOR_ERROR(WSA_INVALID_HANDLE, "Specified event object handle is invalid.");
834 * TEXT_FOR_ERROR(WSA_INVALID_PARAMETER, "One or more parameters are invalid.");
835 * TEXT_FOR_ERROR(WSAINVALIDPROCTABLE, "Invalid procedure table from service provider.");
836 * TEXT_FOR_ERROR(WSAINVALIDPROVIDER, "Invalid service provider version number.");
837 * TEXT_FOR_ERROR(WSA_IO_PENDING, "Overlapped operations will complete later.");
838 * TEXT_FOR_ERROR(WSA_IO_INCOMPLETE, "Overlapped I/O event object not in signaled state.");
839 * TEXT_FOR_ERROR(WSA_NOT_ENOUGH_MEMORY, "Insufficient memory available.");
840 * TEXT_FOR_ERROR(WSAPROVIDERFAILEDINIT, "Unable to initialize a service provider.");
841 * TEXT_FOR_ERROR(WSASYSCALLFAILURE, "System call failure.");
842 * TEXT_FOR_ERROR(WSA_OPERATION_ABORTED, "Overlapped operation aborted.");
845 sprintf(tmp_buf, "(error number %d)", errcode);
848 #endif /* def _WIN32 */