1 const char errlog_rcs[] = "$Id: errlog.c,v 1.34 2002/03/24 13:25:43 swa 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://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 1.34 2002/03/24 13:25:43 swa
37 * name change related issues
39 * Revision 1.33 2002/03/13 00:27:04 jongfoster
42 * Revision 1.32 2002/03/07 03:46:17 oes
43 * Fixed compiler warnings
45 * Revision 1.31 2002/03/06 23:02:57 jongfoster
48 * Revision 1.30 2002/03/05 22:43:45 david__schmidt
49 * - Better error reporting on OS/2
50 * - Fix double-slash comment (oops)
52 * Revision 1.29 2002/03/04 23:45:13 jongfoster
53 * Printing thread ID if using Win32 native threads
55 * Revision 1.28 2002/03/04 17:59:59 oes
56 * Deleted deletePidFile(), cosmetics
58 * Revision 1.27 2002/03/04 02:08:01 david__schmidt
59 * Enable web editing of actions file on OS/2 (it had been broken all this time!)
61 * Revision 1.26 2002/01/09 19:05:45 steudten
62 * Fix big memory leak.
64 * Revision 1.25 2002/01/09 14:32:08 oes
65 * Added support for gmtime_r and localtime_r.
67 * Revision 1.24 2001/12/30 14:07:32 steudten
68 * - Add signal handling (unix)
69 * - Add SIGHUP handler (unix)
70 * - Add creation of pidfile (unix)
71 * - Add action 'top' in rc file (RH)
72 * - Add entry 'SIGNALS' to manpage
73 * - Add exit message to logfile (unix)
75 * Revision 1.23 2001/11/07 00:02:13 steudten
76 * Add line number in error output for lineparsing for
77 * actionsfile and configfile.
78 * Special handling for CLF added.
80 * Revision 1.22 2001/11/05 23:43:05 steudten
81 * Add time+date to log files.
83 * Revision 1.21 2001/10/25 03:40:47 david__schmidt
84 * Change in porting tactics: OS/2's EMX porting layer doesn't allow multiple
85 * threads to call select() simultaneously. So, it's time to do a real, live,
86 * native OS/2 port. See defines for __EMX__ (the porting layer) vs. __OS2__
87 * (native). Both versions will work, but using __OS2__ offers multi-threading.
89 * Revision 1.20 2001/09/16 23:04:34 jongfoster
92 * Revision 1.19 2001/09/13 20:08:06 jongfoster
93 * Adding support for LOG_LEVEL_CGI
95 * Revision 1.18 2001/09/10 11:27:24 oes
96 * Declaration of w32_socket_strerr now conditional
98 * Revision 1.17 2001/09/10 10:17:13 oes
99 * Removed unused variable; Fixed sprintf format
101 * Revision 1.16 2001/07/30 22:08:36 jongfoster
102 * Tidying up #defines:
103 * - All feature #defines are now of the form FEATURE_xxx
104 * - Permanently turned off WIN_GUI_EDIT
105 * - Permanently turned on WEBDAV and SPLIT_PROXY_ARGS
107 * Revision 1.15 2001/07/29 17:41:10 jongfoster
108 * Now prints thread ID for each message (pthreads only)
110 * Revision 1.14 2001/07/19 19:03:48 haroon
111 * - Added case for LOG_LEVEL_POPUPS
113 * Revision 1.13 2001/07/13 13:58:58 oes
114 * - Added case for LOG_LEVEL_DEANIMATE
115 * - Removed all #ifdef PCRS
117 * Revision 1.12 2001/06/09 10:55:28 jongfoster
118 * Changing BUFSIZ ==> BUFFER_SIZE
120 * Revision 1.11 2001/06/01 18:14:49 jongfoster
121 * Changing the calls to strerr() to check HAVE_STRERR (which is defined
122 * in config.h if appropriate) rather than the NO_STRERR macro.
124 * Revision 1.10 2001/05/29 11:52:21 oes
125 * Conditional compilation of w32_socket_error
127 * Revision 1.9 2001/05/28 16:15:17 jongfoster
128 * Improved reporting of errors under Win32.
130 * Revision 1.8 2001/05/26 17:25:14 jongfoster
131 * Added support for CLF (Common Log Format) and fixed LOG_LEVEL_LOG
133 * Revision 1.7 2001/05/26 15:21:28 jongfoster
134 * Activity animation in Win32 GUI now works even if debug==0
136 * Revision 1.6 2001/05/25 21:55:08 jongfoster
137 * Now cleans up properly on FATAL (removes taskbar icon etc)
139 * Revision 1.5 2001/05/22 18:46:04 oes
141 * - Enabled filtering banners by size rather than URL
142 * by adding patterns that replace all standard banner
143 * sizes with the "Junkbuster" gif to the re_filterfile
145 * - Enabled filtering WebBugs by providing a pattern
146 * which kills all 1x1 images
148 * - Added support for PCRE_UNGREEDY behaviour to pcrs,
149 * which is selected by the (nonstandard and therefore
150 * capital) letter 'U' in the option string.
151 * It causes the quantifiers to be ungreedy by default.
152 * Appending a ? turns back to greedy (!).
154 * - Added a new interceptor ijb-send-banner, which
155 * sends back the "Junkbuster" gif. Without imagelist or
156 * MSIE detection support, or if tinygif = 1, or the
157 * URL isn't recognized as an imageurl, a lame HTML
158 * explanation is sent instead.
160 * - Added new feature, which permits blocking remote
161 * script redirects and firing back a local redirect
163 * The feature is conditionally compiled, i.e. it
164 * can be disabled with --disable-fast-redirects,
165 * plus it must be activated by a "fast-redirects"
166 * line in the config file, has its own log level
167 * and of course wants to be displayed by show-proxy-args
168 * Note: Boy, all the #ifdefs in 1001 locations and
169 * all the fumbling with configure.in and acconfig.h
170 * were *way* more work than the feature itself :-(
172 * - Because a generic redirect template was needed for
173 * this, tinygif = 3 now uses the same.
175 * - Moved GIFs, and other static HTTP response templates
180 * - Removed some >400 CRs again (Jon, you really worked
183 * Revision 1.4 2001/05/21 19:32:54 jongfoster
184 * Added another #ifdef _WIN_CONSOLE
186 * Revision 1.3 2001/05/20 01:11:40 jongfoster
187 * Added support for LOG_LEVEL_FATAL
188 * Renamed LOG_LEVEL_FRC to LOG_LEVEL_FORCE,
189 * and LOG_LEVEL_REF to LOG_LEVEL_RE_FILTER
191 * Revision 1.2 2001/05/17 22:42:01 oes
192 * - Cleaned CRLF's from the sources and related files
193 * - Repaired logging for REF and FRC
195 * Revision 1.1.1.1 2001/05/15 13:58:51 oes
196 * Initial import of version 2.9.3 source tree
199 *********************************************************************/
203 #include "miscutil.h"
210 #if !defined(_WIN32) && !defined(__OS2__)
212 #endif /* !defined(_WIN32) && !defined(__OS2__) */
216 #ifdef FEATURE_PTHREAD
218 #endif /* def FEATURE_PTHREAD */
224 #endif /* ndef _WIN_CONSOLE */
225 #endif /* def _WIN32 */
236 const char errlog_h_rcs[] = ERRLOG_H_VERSION;
240 * LOG_LEVEL_FATAL cannot be turned off. (There are
241 * some exceptional situations where we need to get a
242 * message to the user).
244 #define LOG_LEVEL_MINIMUM LOG_LEVEL_FATAL
246 /* where to log (default: stderr) */
247 static FILE *logfp = NULL;
249 /* logging detail level. */
250 static int debug = (LOG_LEVEL_FATAL | LOG_LEVEL_ERROR | LOG_LEVEL_INFO);
252 /* static functions */
253 static void fatal_error(const char * error_message);
255 static char *w32_socket_strerr(int errcode, char *tmp_buf);
258 /*********************************************************************
260 * Function : fatal_error
262 * Description : Displays a fatal error to standard error (or, on
263 * a WIN32 GUI, to a dialog box), and exits
264 * JunkBuster with status code 1.
267 * 1 : error_message = The error message to display.
269 * Returns : Does not return.
271 *********************************************************************/
272 static void fatal_error(const char * error_message)
274 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
275 MessageBox(g_hwndLogFrame, error_message, "Privoxy Error",
276 MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_SETFOREGROUND | MB_TOPMOST);
278 /* Cleanup - remove taskbar icon etc. */
281 #else /* if !defined(_WIN32) || defined(_WIN_CONSOLE) */
282 fputs(error_message, stderr);
283 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
293 /*********************************************************************
295 * Function : init_error_log
297 * Description : Initializes the logging module. Must call before
301 * 1 : prog_name = The program name.
302 * 2 : logfname = The logfile name, or NULL for stderr.
303 * 3 : debuglevel = The debugging level.
307 *********************************************************************/
308 void init_error_log(const char *prog_name, const char *logfname, int debuglevel)
312 /* FIXME RACE HAZARD: should start critical section error_log_use here */
314 /* set the logging detail level */
315 debug = debuglevel | LOG_LEVEL_MINIMUM;
317 if ((logfp != NULL) && (logfp != stderr))
319 log_error(LOG_LEVEL_INFO, "(Re-)Open logfile %s", logfname ? logfname : "none");
324 /* set the designated log file */
327 if( NULL == (fp = fopen(logfname, "a")) )
329 log_error(LOG_LEVEL_FATAL, "init_error_log(): can't open logfile: %s", logfname);
332 /* set logging to be completely unbuffered */
338 log_error(LOG_LEVEL_INFO, "Privoxy version " VERSION);
339 if (prog_name != NULL)
341 log_error(LOG_LEVEL_INFO, "Program name: %s", prog_name);
344 /* FIXME RACE HAZARD: should end critical section error_log_use here */
346 } /* init_error_log */
349 /*********************************************************************
351 * Function : log_error
353 * Description : This is the error-reporting and logging function.
356 * 1 : loglevel = the type of message to be logged
357 * 2 : fmt = the main string we want logged, printf-like
358 * 3 : ... = arguments to be inserted in fmt (printf-like).
362 *********************************************************************/
363 void log_error(int loglevel, char *fmt, ...)
367 static char *outbuf_save = NULL;
370 long this_thread = 1; /* was: pthread_t this_thread;*/
376 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
378 * Irrespective of debug setting, a GET/POST/CONNECT makes
379 * the taskbar icon animate. (There is an option to disable
380 * this but checking that is handled inside LogShowActivity()).
382 if (loglevel == LOG_LEVEL_GPC)
386 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
388 /* verify if loglevel applies to current settings and bail out if negative */
389 if ((loglevel & debug) == 0)
394 /* FIXME get current thread id */
395 #ifdef FEATURE_PTHREAD
396 this_thread = (long)pthread_self();
397 #elif defined(_WIN32)
398 this_thread = GetCurrentThreadId();
399 #elif defined(__OS2__)
400 ulrc = DosGetInfoBlocks(&ptib, NULL);
402 this_thread = ptib -> tib_ptib2 -> tib2_ultid;
403 #endif /* def FEATURE_PTHREAD */
407 outbuf_save = outbuf = (char*)malloc(BUFFER_SIZE);
410 outbuf = outbuf_save;
414 * Write timestamp into tempbuf.
416 * Complex because not all OSs have tm_gmtoff or
417 * the %z field in strftime()
422 #ifdef HAVE_LOCALTIME_R
423 tm_now = *localtime_r(&now, &tm_now);
425 tm_now = *localtime (&now);
427 strftime(outbuf, BUFFER_SIZE-6, "%b %d %H:%M:%S ", &tm_now);
428 outbuf += strlen( outbuf );
432 case LOG_LEVEL_ERROR:
433 outc = sprintf(outbuf, "Privoxy(%ld) Error: ", this_thread);
435 case LOG_LEVEL_FATAL:
436 outc = sprintf(outbuf, "Privoxy(%ld) Fatal error: ", this_thread);
439 outc = sprintf(outbuf, "Privoxy(%ld) Request: ", this_thread);
441 case LOG_LEVEL_CONNECT:
442 outc = sprintf(outbuf, "Privoxy(%ld) Connect: ", this_thread);
445 outc = sprintf(outbuf, "Privoxy(%ld) Writing: ", this_thread);
447 case LOG_LEVEL_HEADER:
448 outc = sprintf(outbuf, "Privoxy(%ld) Header: ", this_thread);
451 outc = sprintf(outbuf, "Privoxy(%ld) Info: ", this_thread);
453 case LOG_LEVEL_RE_FILTER:
454 outc = sprintf(outbuf, "Privoxy(%ld) Re-Filter: ", this_thread);
456 #ifdef FEATURE_FORCE_LOAD
457 case LOG_LEVEL_FORCE:
458 outc = sprintf(outbuf, "Privoxy(%ld) Force: ", this_thread);
460 #endif /* def FEATURE_FORCE_LOAD */
461 #ifdef FEATURE_FAST_REDIRECTS
462 case LOG_LEVEL_REDIRECTS:
463 outc = sprintf(outbuf, "Privoxy(%ld) Redirect: ", this_thread);
465 #endif /* def FEATURE_FAST_REDIRECTS */
466 case LOG_LEVEL_DEANIMATE:
467 outc = sprintf(outbuf, "Privoxy(%ld) Gif-Deanimate: ", this_thread);
470 outbuf = outbuf_save;
474 #ifdef FEATURE_KILL_POPUPS
475 case LOG_LEVEL_POPUPS:
476 outc = sprintf(outbuf, "Privoxy(%ld) Kill-Popups: ", this_thread);
478 #endif /* def FEATURE_KILL_POPUPS */
480 outc = sprintf(outbuf, "Privoxy(%ld) CGI: ", this_thread);
483 outc = sprintf(outbuf, "Privoxy(%ld) UNKNOWN LOG TYPE(%d): ", this_thread, loglevel);
487 /* get ready to scan var. args. */
490 /* build formatted message from fmt and var-args */
491 while ((*src) && (outc < BUFFER_SIZE-2))
493 char tempbuf[BUFFER_SIZE];
512 outbuf[outc++] = '%';
515 ival = va_arg( ap, int );
517 outc += sprintf(tempbuf, "%d", ival);
518 if (outc < BUFFER_SIZE-1)
520 strcpy(outbuf + oldoutc, tempbuf);
524 outbuf[oldoutc] = '\0';
528 uval = va_arg( ap, unsigned );
530 outc += sprintf(tempbuf, "%u", uval);
531 if (outc < BUFFER_SIZE-1)
533 strcpy(outbuf + oldoutc, tempbuf);
537 outbuf[oldoutc] = '\0';
541 /* this is a modifier that must be followed by u or d */
545 lval = va_arg( ap, long );
547 outc += sprintf(tempbuf, "%ld", lval);
551 ulval = va_arg( ap, unsigned long );
553 outc += sprintf(tempbuf, "%lu", ulval);
558 sprintf(outbuf, "Privoxy(%ld) Error: log_error(): Bad format string:\n"
560 "Exiting.", this_thread, fmt);
561 /* FIXME RACE HAZARD: should start critical section error_log_use here */
566 fputs(outbuf, logfp);
567 /* FIXME RACE HAZARD: should end critical section error_log_use here */
572 if (outc < BUFFER_SIZE-1)
574 strcpy(outbuf + oldoutc, tempbuf);
578 outbuf[oldoutc] = '\0';
583 * Note that char paramaters are converted to int, so we need to
584 * pass "int" to va_arg. (See K&R, 2nd ed, section A7.3.2, page 202)
586 outbuf[outc++] = (char) va_arg( ap, int );
589 sval = va_arg( ap, char * );
591 outc += strlen(sval);
592 if (outc < BUFFER_SIZE-1)
594 strcpy(outbuf + oldoutc, sval);
598 outbuf[oldoutc] = '\0';
602 /* Non-standard: Print a counted string. Takes 2 parameters:
603 * int length, const char * string
605 ival = va_arg( ap, int );
606 sval = va_arg( ap, char * );
613 if (outc < BUFFER_SIZE-1)
615 memcpy(outbuf + oldoutc, sval, (size_t) ival);
619 outbuf[oldoutc] = '\0';
623 /* Non-standard: Print error code from errno */
625 ival = WSAGetLastError();
626 sval = w32_socket_strerr(ival, tempbuf);
631 sval = strerror(ival);
632 #else /* ifndef _WIN32 */
635 sval = strerror(ival);
636 #else /* ifndef HAVE_STRERROR */
638 #endif /* ndef HAVE_STRERROR */
641 sprintf(tempbuf, "(errno = %d)", ival);
644 #endif /* ndef _WIN32 */
646 outc += strlen(sval);
647 if (outc < BUFFER_SIZE-1)
649 strcpy(outbuf + oldoutc, sval);
653 outbuf[oldoutc] = '\0';
657 /* Non-standard: Print a Common Log File timestamp */
660 * Write timestamp into tempbuf.
662 * Complex because not all OSs have tm_gmtoff or
663 * the %z field in strftime()
668 #ifdef HAVE_LOCALTIME_R
674 gmt = *gmtime_r(&now, &gmt);
678 #ifdef HAVE_LOCALTIME_R
679 tm_now = localtime_r(&now, &dummy);
681 tm_now = localtime (&now);
683 days = tm_now->tm_yday - gmt.tm_yday;
684 hrs = ((days < -1 ? 24 : 1 < days ? -24 : days * 24) + tm_now->tm_hour - gmt.tm_hour);
685 mins = hrs * 60 + tm_now->tm_min - gmt.tm_min;
686 strftime (tempbuf, BUFFER_SIZE-6, "%d/%b/%Y:%H:%M:%S ", tm_now);
687 sprintf (tempbuf + strlen(tempbuf), "%+03d%02d", mins / 60, abs(mins) % 60);
690 outc += strlen(tempbuf);
691 if (outc < BUFFER_SIZE-1)
693 strcpy(outbuf + oldoutc, tempbuf);
697 outbuf[oldoutc] = '\0';
701 sprintf(outbuf, "Privoxy(%ld) Error: log_error(): Bad format string:\n"
703 "Exiting.", this_thread, fmt);
704 /* FIXME RACE HAZARD: should start critical section error_log_use here */
709 fputs(outbuf_save, logfp);
710 /* FIXME RACE HAZARD: should end critical section error_log_use here */
711 fatal_error(outbuf_save);
719 /* done with var. args */
722 if (outc >= BUFFER_SIZE-2)
724 /* insufficient room for newline and trailing null. */
726 static const char warning[] = "... [too long, truncated]\n";
728 if (outc < BUFFER_SIZE)
730 /* Need to add terminating null in this case. */
734 /* Truncate output */
735 outbuf[BUFFER_SIZE - sizeof(warning)] = '\0';
738 strcat(outbuf, warning);
742 /* Add terminating newline and null */
743 outbuf[outc++] = '\n';
747 /* FIXME RACE HAZARD: should start critical section error_log_use here */
749 /* deal with glibc stupidity - it won't let you initialize logfp */
755 fputs(outbuf_save, logfp);
757 if (loglevel == LOG_LEVEL_FATAL)
759 fatal_error(outbuf_save);
763 /* FIXME RACE HAZARD: should end critical section error_log_use here */
765 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
766 /* Write to display */
767 LogPutString(outbuf_save);
768 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
774 /*********************************************************************
776 * Function : w32_socket_strerr
778 * Description : Translate the return value from WSAGetLastError()
782 * 1 : errcode = The return value from WSAGetLastError().
783 * 2 : tmp_buf = A temporary buffer that might be used to
786 * Returns : String representing the error code. This may be
787 * a global string constant or a string stored in
790 *********************************************************************/
791 static char *w32_socket_strerr(int errcode, char *tmp_buf)
793 #define TEXT_FOR_ERROR(code,text) \
794 if (errcode == code) \
796 return #code " - " text; \
799 TEXT_FOR_ERROR(WSAEACCES, "Permission denied")
800 TEXT_FOR_ERROR(WSAEADDRINUSE, "Address already in use.")
801 TEXT_FOR_ERROR(WSAEADDRNOTAVAIL, "Cannot assign requested address.");
802 TEXT_FOR_ERROR(WSAEAFNOSUPPORT, "Address family not supported by protocol family.");
803 TEXT_FOR_ERROR(WSAEALREADY, "Operation already in progress.");
804 TEXT_FOR_ERROR(WSAECONNABORTED, "Software caused connection abort.");
805 TEXT_FOR_ERROR(WSAECONNREFUSED, "Connection refused.");
806 TEXT_FOR_ERROR(WSAECONNRESET, "Connection reset by peer.");
807 TEXT_FOR_ERROR(WSAEDESTADDRREQ, "Destination address required.");
808 TEXT_FOR_ERROR(WSAEFAULT, "Bad address.");
809 TEXT_FOR_ERROR(WSAEHOSTDOWN, "Host is down.");
810 TEXT_FOR_ERROR(WSAEHOSTUNREACH, "No route to host.");
811 TEXT_FOR_ERROR(WSAEINPROGRESS, "Operation now in progress.");
812 TEXT_FOR_ERROR(WSAEINTR, "Interrupted function call.");
813 TEXT_FOR_ERROR(WSAEINVAL, "Invalid argument.");
814 TEXT_FOR_ERROR(WSAEISCONN, "Socket is already connected.");
815 TEXT_FOR_ERROR(WSAEMFILE, "Too many open sockets.");
816 TEXT_FOR_ERROR(WSAEMSGSIZE, "Message too long.");
817 TEXT_FOR_ERROR(WSAENETDOWN, "Network is down.");
818 TEXT_FOR_ERROR(WSAENETRESET, "Network dropped connection on reset.");
819 TEXT_FOR_ERROR(WSAENETUNREACH, "Network is unreachable.");
820 TEXT_FOR_ERROR(WSAENOBUFS, "No buffer space available.");
821 TEXT_FOR_ERROR(WSAENOPROTOOPT, "Bad protocol option.");
822 TEXT_FOR_ERROR(WSAENOTCONN, "Socket is not connected.");
823 TEXT_FOR_ERROR(WSAENOTSOCK, "Socket operation on non-socket.");
824 TEXT_FOR_ERROR(WSAEOPNOTSUPP, "Operation not supported.");
825 TEXT_FOR_ERROR(WSAEPFNOSUPPORT, "Protocol family not supported.");
826 TEXT_FOR_ERROR(WSAEPROCLIM, "Too many processes.");
827 TEXT_FOR_ERROR(WSAEPROTONOSUPPORT, "Protocol not supported.");
828 TEXT_FOR_ERROR(WSAEPROTOTYPE, "Protocol wrong type for socket.");
829 TEXT_FOR_ERROR(WSAESHUTDOWN, "Cannot send after socket shutdown.");
830 TEXT_FOR_ERROR(WSAESOCKTNOSUPPORT, "Socket type not supported.");
831 TEXT_FOR_ERROR(WSAETIMEDOUT, "Connection timed out.");
832 TEXT_FOR_ERROR(WSAEWOULDBLOCK, "Resource temporarily unavailable.");
833 TEXT_FOR_ERROR(WSAHOST_NOT_FOUND, "Host not found.");
834 TEXT_FOR_ERROR(WSANOTINITIALISED, "Successful WSAStartup not yet performed.");
835 TEXT_FOR_ERROR(WSANO_DATA, "Valid name, no data record of requested type.");
836 TEXT_FOR_ERROR(WSANO_RECOVERY, "This is a non-recoverable error.");
837 TEXT_FOR_ERROR(WSASYSNOTREADY, "Network subsystem is unavailable.");
838 TEXT_FOR_ERROR(WSATRY_AGAIN, "Non-authoritative host not found.");
839 TEXT_FOR_ERROR(WSAVERNOTSUPPORTED, "WINSOCK.DLL version out of range.");
840 TEXT_FOR_ERROR(WSAEDISCON, "Graceful shutdown in progress.");
842 * The following error codes are documented in the Microsoft WinSock
843 * reference guide, but don't actually exist.
845 * TEXT_FOR_ERROR(WSA_INVALID_HANDLE, "Specified event object handle is invalid.");
846 * TEXT_FOR_ERROR(WSA_INVALID_PARAMETER, "One or more parameters are invalid.");
847 * TEXT_FOR_ERROR(WSAINVALIDPROCTABLE, "Invalid procedure table from service provider.");
848 * TEXT_FOR_ERROR(WSAINVALIDPROVIDER, "Invalid service provider version number.");
849 * TEXT_FOR_ERROR(WSA_IO_PENDING, "Overlapped operations will complete later.");
850 * TEXT_FOR_ERROR(WSA_IO_INCOMPLETE, "Overlapped I/O event object not in signaled state.");
851 * TEXT_FOR_ERROR(WSA_NOT_ENOUGH_MEMORY, "Insufficient memory available.");
852 * TEXT_FOR_ERROR(WSAPROVIDERFAILEDINIT, "Unable to initialize a service provider.");
853 * TEXT_FOR_ERROR(WSASYSCALLFAILURE, "System call failure.");
854 * TEXT_FOR_ERROR(WSA_OPERATION_ABORTED, "Overlapped operation aborted.");
857 sprintf(tmp_buf, "(error number %d)", errcode);
860 #endif /* def _WIN32 */