1 const char errlog_rcs[] = "$Id: errlog.c,v 1.36 2002/03/26 22:29:54 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://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 1.36 2002/03/26 22:29:54 swa
37 * we have a new homepage!
39 * Revision 1.35 2002/03/24 15:23:33 jongfoster
42 * Revision 1.34 2002/03/24 13:25:43 swa
43 * name change related issues
45 * Revision 1.33 2002/03/13 00:27:04 jongfoster
48 * Revision 1.32 2002/03/07 03:46:17 oes
49 * Fixed compiler warnings
51 * Revision 1.31 2002/03/06 23:02:57 jongfoster
54 * Revision 1.30 2002/03/05 22:43:45 david__schmidt
55 * - Better error reporting on OS/2
56 * - Fix double-slash comment (oops)
58 * Revision 1.29 2002/03/04 23:45:13 jongfoster
59 * Printing thread ID if using Win32 native threads
61 * Revision 1.28 2002/03/04 17:59:59 oes
62 * Deleted deletePidFile(), cosmetics
64 * Revision 1.27 2002/03/04 02:08:01 david__schmidt
65 * Enable web editing of actions file on OS/2 (it had been broken all this time!)
67 * Revision 1.26 2002/01/09 19:05:45 steudten
68 * Fix big memory leak.
70 * Revision 1.25 2002/01/09 14:32:08 oes
71 * Added support for gmtime_r and localtime_r.
73 * Revision 1.24 2001/12/30 14:07:32 steudten
74 * - Add signal handling (unix)
75 * - Add SIGHUP handler (unix)
76 * - Add creation of pidfile (unix)
77 * - Add action 'top' in rc file (RH)
78 * - Add entry 'SIGNALS' to manpage
79 * - Add exit message to logfile (unix)
81 * Revision 1.23 2001/11/07 00:02:13 steudten
82 * Add line number in error output for lineparsing for
83 * actionsfile and configfile.
84 * Special handling for CLF added.
86 * Revision 1.22 2001/11/05 23:43:05 steudten
87 * Add time+date to log files.
89 * Revision 1.21 2001/10/25 03:40:47 david__schmidt
90 * Change in porting tactics: OS/2's EMX porting layer doesn't allow multiple
91 * threads to call select() simultaneously. So, it's time to do a real, live,
92 * native OS/2 port. See defines for __EMX__ (the porting layer) vs. __OS2__
93 * (native). Both versions will work, but using __OS2__ offers multi-threading.
95 * Revision 1.20 2001/09/16 23:04:34 jongfoster
98 * Revision 1.19 2001/09/13 20:08:06 jongfoster
99 * Adding support for LOG_LEVEL_CGI
101 * Revision 1.18 2001/09/10 11:27:24 oes
102 * Declaration of w32_socket_strerr now conditional
104 * Revision 1.17 2001/09/10 10:17:13 oes
105 * Removed unused variable; Fixed sprintf format
107 * Revision 1.16 2001/07/30 22:08:36 jongfoster
108 * Tidying up #defines:
109 * - All feature #defines are now of the form FEATURE_xxx
110 * - Permanently turned off WIN_GUI_EDIT
111 * - Permanently turned on WEBDAV and SPLIT_PROXY_ARGS
113 * Revision 1.15 2001/07/29 17:41:10 jongfoster
114 * Now prints thread ID for each message (pthreads only)
116 * Revision 1.14 2001/07/19 19:03:48 haroon
117 * - Added case for LOG_LEVEL_POPUPS
119 * Revision 1.13 2001/07/13 13:58:58 oes
120 * - Added case for LOG_LEVEL_DEANIMATE
121 * - Removed all #ifdef PCRS
123 * Revision 1.12 2001/06/09 10:55:28 jongfoster
124 * Changing BUFSIZ ==> BUFFER_SIZE
126 * Revision 1.11 2001/06/01 18:14:49 jongfoster
127 * Changing the calls to strerr() to check HAVE_STRERR (which is defined
128 * in config.h if appropriate) rather than the NO_STRERR macro.
130 * Revision 1.10 2001/05/29 11:52:21 oes
131 * Conditional compilation of w32_socket_error
133 * Revision 1.9 2001/05/28 16:15:17 jongfoster
134 * Improved reporting of errors under Win32.
136 * Revision 1.8 2001/05/26 17:25:14 jongfoster
137 * Added support for CLF (Common Log Format) and fixed LOG_LEVEL_LOG
139 * Revision 1.7 2001/05/26 15:21:28 jongfoster
140 * Activity animation in Win32 GUI now works even if debug==0
142 * Revision 1.6 2001/05/25 21:55:08 jongfoster
143 * Now cleans up properly on FATAL (removes taskbar icon etc)
145 * Revision 1.5 2001/05/22 18:46:04 oes
147 * - Enabled filtering banners by size rather than URL
148 * by adding patterns that replace all standard banner
149 * sizes with the "Junkbuster" gif to the re_filterfile
151 * - Enabled filtering WebBugs by providing a pattern
152 * which kills all 1x1 images
154 * - Added support for PCRE_UNGREEDY behaviour to pcrs,
155 * which is selected by the (nonstandard and therefore
156 * capital) letter 'U' in the option string.
157 * It causes the quantifiers to be ungreedy by default.
158 * Appending a ? turns back to greedy (!).
160 * - Added a new interceptor ijb-send-banner, which
161 * sends back the "Junkbuster" gif. Without imagelist or
162 * MSIE detection support, or if tinygif = 1, or the
163 * URL isn't recognized as an imageurl, a lame HTML
164 * explanation is sent instead.
166 * - Added new feature, which permits blocking remote
167 * script redirects and firing back a local redirect
169 * The feature is conditionally compiled, i.e. it
170 * can be disabled with --disable-fast-redirects,
171 * plus it must be activated by a "fast-redirects"
172 * line in the config file, has its own log level
173 * and of course wants to be displayed by show-proxy-args
174 * Note: Boy, all the #ifdefs in 1001 locations and
175 * all the fumbling with configure.in and acconfig.h
176 * were *way* more work than the feature itself :-(
178 * - Because a generic redirect template was needed for
179 * this, tinygif = 3 now uses the same.
181 * - Moved GIFs, and other static HTTP response templates
186 * - Removed some >400 CRs again (Jon, you really worked
189 * Revision 1.4 2001/05/21 19:32:54 jongfoster
190 * Added another #ifdef _WIN_CONSOLE
192 * Revision 1.3 2001/05/20 01:11:40 jongfoster
193 * Added support for LOG_LEVEL_FATAL
194 * Renamed LOG_LEVEL_FRC to LOG_LEVEL_FORCE,
195 * and LOG_LEVEL_REF to LOG_LEVEL_RE_FILTER
197 * Revision 1.2 2001/05/17 22:42:01 oes
198 * - Cleaned CRLF's from the sources and related files
199 * - Repaired logging for REF and FRC
201 * Revision 1.1.1.1 2001/05/15 13:58:51 oes
202 * Initial import of version 2.9.3 source tree
205 *********************************************************************/
209 #include "miscutil.h"
216 #if !defined(_WIN32) && !defined(__OS2__)
218 #endif /* !defined(_WIN32) && !defined(__OS2__) */
222 #ifdef FEATURE_PTHREAD
224 #endif /* def FEATURE_PTHREAD */
230 #endif /* ndef _WIN_CONSOLE */
231 #endif /* def _WIN32 */
234 #include <sys/socket.h> /* For sock_errno */
243 const char errlog_h_rcs[] = ERRLOG_H_VERSION;
247 * LOG_LEVEL_FATAL cannot be turned off. (There are
248 * some exceptional situations where we need to get a
249 * message to the user).
251 #define LOG_LEVEL_MINIMUM LOG_LEVEL_FATAL
253 /* where to log (default: stderr) */
254 static FILE *logfp = NULL;
256 /* logging detail level. */
257 static int debug = (LOG_LEVEL_FATAL | LOG_LEVEL_ERROR | LOG_LEVEL_INFO);
259 /* static functions */
260 static void fatal_error(const char * error_message);
262 static char *w32_socket_strerr(int errcode, char *tmp_buf);
265 /*********************************************************************
267 * Function : fatal_error
269 * Description : Displays a fatal error to standard error (or, on
270 * a WIN32 GUI, to a dialog box), and exits
271 * JunkBuster with status code 1.
274 * 1 : error_message = The error message to display.
276 * Returns : Does not return.
278 *********************************************************************/
279 static void fatal_error(const char * error_message)
281 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
282 MessageBox(g_hwndLogFrame, error_message, "Privoxy Error",
283 MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_SETFOREGROUND | MB_TOPMOST);
285 /* Cleanup - remove taskbar icon etc. */
288 #else /* if !defined(_WIN32) || defined(_WIN_CONSOLE) */
289 fputs(error_message, stderr);
290 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
300 /*********************************************************************
302 * Function : init_error_log
304 * Description : Initializes the logging module. Must call before
308 * 1 : prog_name = The program name.
309 * 2 : logfname = The logfile name, or NULL for stderr.
310 * 3 : debuglevel = The debugging level.
314 *********************************************************************/
315 void init_error_log(const char *prog_name, const char *logfname, int debuglevel)
319 /* FIXME RACE HAZARD: should start critical section error_log_use here */
321 /* set the logging detail level */
322 debug = debuglevel | LOG_LEVEL_MINIMUM;
324 if ((logfp != NULL) && (logfp != stderr))
326 log_error(LOG_LEVEL_INFO, "(Re-)Open logfile %s", logfname ? logfname : "none");
331 /* set the designated log file */
334 if( NULL == (fp = fopen(logfname, "a")) )
336 log_error(LOG_LEVEL_FATAL, "init_error_log(): can't open logfile: %s", logfname);
339 /* set logging to be completely unbuffered */
345 log_error(LOG_LEVEL_INFO, "Privoxy version " VERSION);
346 if (prog_name != NULL)
348 log_error(LOG_LEVEL_INFO, "Program name: %s", prog_name);
351 /* FIXME RACE HAZARD: should end critical section error_log_use here */
353 } /* init_error_log */
356 /*********************************************************************
358 * Function : log_error
360 * Description : This is the error-reporting and logging function.
363 * 1 : loglevel = the type of message to be logged
364 * 2 : fmt = the main string we want logged, printf-like
365 * 3 : ... = arguments to be inserted in fmt (printf-like).
369 *********************************************************************/
370 void log_error(int loglevel, char *fmt, ...)
374 static char *outbuf_save = NULL;
377 long this_thread = 1; /* was: pthread_t this_thread;*/
383 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
385 * Irrespective of debug setting, a GET/POST/CONNECT makes
386 * the taskbar icon animate. (There is an option to disable
387 * this but checking that is handled inside LogShowActivity()).
389 if (loglevel == LOG_LEVEL_GPC)
393 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
395 /* verify if loglevel applies to current settings and bail out if negative */
396 if ((loglevel & debug) == 0)
401 /* FIXME get current thread id */
402 #ifdef FEATURE_PTHREAD
403 this_thread = (long)pthread_self();
404 #elif defined(_WIN32)
405 this_thread = GetCurrentThreadId();
406 #elif defined(__OS2__)
407 ulrc = DosGetInfoBlocks(&ptib, NULL);
409 this_thread = ptib -> tib_ptib2 -> tib2_ultid;
410 #endif /* def FEATURE_PTHREAD */
414 outbuf_save = outbuf = (char*)malloc(BUFFER_SIZE);
417 outbuf = outbuf_save;
421 * Write timestamp into tempbuf.
423 * Complex because not all OSs have tm_gmtoff or
424 * the %z field in strftime()
429 #ifdef HAVE_LOCALTIME_R
430 tm_now = *localtime_r(&now, &tm_now);
432 tm_now = *localtime (&now);
434 strftime(outbuf, BUFFER_SIZE-6, "%b %d %H:%M:%S ", &tm_now);
435 outbuf += strlen( outbuf );
439 case LOG_LEVEL_ERROR:
440 outc = sprintf(outbuf, "Privoxy(%ld) Error: ", this_thread);
442 case LOG_LEVEL_FATAL:
443 outc = sprintf(outbuf, "Privoxy(%ld) Fatal error: ", this_thread);
446 outc = sprintf(outbuf, "Privoxy(%ld) Request: ", this_thread);
448 case LOG_LEVEL_CONNECT:
449 outc = sprintf(outbuf, "Privoxy(%ld) Connect: ", this_thread);
452 outc = sprintf(outbuf, "Privoxy(%ld) Writing: ", this_thread);
454 case LOG_LEVEL_HEADER:
455 outc = sprintf(outbuf, "Privoxy(%ld) Header: ", this_thread);
458 outc = sprintf(outbuf, "Privoxy(%ld) Info: ", this_thread);
460 case LOG_LEVEL_RE_FILTER:
461 outc = sprintf(outbuf, "Privoxy(%ld) Re-Filter: ", this_thread);
463 #ifdef FEATURE_FORCE_LOAD
464 case LOG_LEVEL_FORCE:
465 outc = sprintf(outbuf, "Privoxy(%ld) Force: ", this_thread);
467 #endif /* def FEATURE_FORCE_LOAD */
468 #ifdef FEATURE_FAST_REDIRECTS
469 case LOG_LEVEL_REDIRECTS:
470 outc = sprintf(outbuf, "Privoxy(%ld) Redirect: ", this_thread);
472 #endif /* def FEATURE_FAST_REDIRECTS */
473 case LOG_LEVEL_DEANIMATE:
474 outc = sprintf(outbuf, "Privoxy(%ld) Gif-Deanimate: ", this_thread);
477 outbuf = outbuf_save;
481 #ifdef FEATURE_KILL_POPUPS
482 case LOG_LEVEL_POPUPS:
483 outc = sprintf(outbuf, "Privoxy(%ld) Kill-Popups: ", this_thread);
485 #endif /* def FEATURE_KILL_POPUPS */
487 outc = sprintf(outbuf, "Privoxy(%ld) CGI: ", this_thread);
490 outc = sprintf(outbuf, "Privoxy(%ld) UNKNOWN LOG TYPE(%d): ", this_thread, loglevel);
494 /* get ready to scan var. args. */
497 /* build formatted message from fmt and var-args */
498 while ((*src) && (outc < BUFFER_SIZE-2))
500 char tempbuf[BUFFER_SIZE];
519 outbuf[outc++] = '%';
522 ival = va_arg( ap, int );
524 outc += sprintf(tempbuf, "%d", ival);
525 if (outc < BUFFER_SIZE-1)
527 strcpy(outbuf + oldoutc, tempbuf);
531 outbuf[oldoutc] = '\0';
535 uval = va_arg( ap, unsigned );
537 outc += sprintf(tempbuf, "%u", uval);
538 if (outc < BUFFER_SIZE-1)
540 strcpy(outbuf + oldoutc, tempbuf);
544 outbuf[oldoutc] = '\0';
548 /* this is a modifier that must be followed by u or d */
552 lval = va_arg( ap, long );
554 outc += sprintf(tempbuf, "%ld", lval);
558 ulval = va_arg( ap, unsigned long );
560 outc += sprintf(tempbuf, "%lu", ulval);
565 sprintf(outbuf, "Privoxy(%ld) Error: log_error(): Bad format string:\n"
567 "Exiting.", this_thread, fmt);
568 /* FIXME RACE HAZARD: should start critical section error_log_use here */
573 fputs(outbuf, logfp);
574 /* FIXME RACE HAZARD: should end critical section error_log_use here */
579 if (outc < BUFFER_SIZE-1)
581 strcpy(outbuf + oldoutc, tempbuf);
585 outbuf[oldoutc] = '\0';
590 * Note that char paramaters are converted to int, so we need to
591 * pass "int" to va_arg. (See K&R, 2nd ed, section A7.3.2, page 202)
593 outbuf[outc++] = (char) va_arg( ap, int );
596 sval = va_arg( ap, char * );
598 outc += strlen(sval);
599 if (outc < BUFFER_SIZE-1)
601 strcpy(outbuf + oldoutc, sval);
605 outbuf[oldoutc] = '\0';
609 /* Non-standard: Print a counted string. Takes 2 parameters:
610 * int length, const char * string
612 ival = va_arg( ap, int );
613 sval = va_arg( ap, char * );
620 if (outc < BUFFER_SIZE-1)
622 memcpy(outbuf + oldoutc, sval, (size_t) ival);
626 outbuf[oldoutc] = '\0';
630 /* Non-standard: Print error code from errno */
632 ival = WSAGetLastError();
633 sval = w32_socket_strerr(ival, tempbuf);
638 sval = strerror(ival);
639 #else /* ifndef _WIN32 */
642 sval = strerror(ival);
643 #else /* ifndef HAVE_STRERROR */
645 #endif /* ndef HAVE_STRERROR */
648 sprintf(tempbuf, "(errno = %d)", ival);
651 #endif /* ndef _WIN32 */
653 outc += strlen(sval);
654 if (outc < BUFFER_SIZE-1)
656 strcpy(outbuf + oldoutc, sval);
660 outbuf[oldoutc] = '\0';
664 /* Non-standard: Print a Common Log File timestamp */
667 * Write timestamp into tempbuf.
669 * Complex because not all OSs have tm_gmtoff or
670 * the %z field in strftime()
675 #ifdef HAVE_LOCALTIME_R
681 gmt = *gmtime_r(&now, &gmt);
685 #ifdef HAVE_LOCALTIME_R
686 tm_now = localtime_r(&now, &dummy);
688 tm_now = localtime (&now);
690 days = tm_now->tm_yday - gmt.tm_yday;
691 hrs = ((days < -1 ? 24 : 1 < days ? -24 : days * 24) + tm_now->tm_hour - gmt.tm_hour);
692 mins = hrs * 60 + tm_now->tm_min - gmt.tm_min;
693 strftime (tempbuf, BUFFER_SIZE-6, "%d/%b/%Y:%H:%M:%S ", tm_now);
694 sprintf (tempbuf + strlen(tempbuf), "%+03d%02d", mins / 60, abs(mins) % 60);
697 outc += strlen(tempbuf);
698 if (outc < BUFFER_SIZE-1)
700 strcpy(outbuf + oldoutc, tempbuf);
704 outbuf[oldoutc] = '\0';
708 sprintf(outbuf, "Privoxy(%ld) Error: log_error(): Bad format string:\n"
710 "Exiting.", this_thread, fmt);
711 /* FIXME RACE HAZARD: should start critical section error_log_use here */
716 fputs(outbuf_save, logfp);
717 /* FIXME RACE HAZARD: should end critical section error_log_use here */
718 fatal_error(outbuf_save);
726 /* done with var. args */
729 if (outc >= BUFFER_SIZE-2)
731 /* insufficient room for newline and trailing null. */
733 static const char warning[] = "... [too long, truncated]\n";
735 if (outc < BUFFER_SIZE)
737 /* Need to add terminating null in this case. */
741 /* Truncate output */
742 outbuf[BUFFER_SIZE - sizeof(warning)] = '\0';
745 strcat(outbuf, warning);
749 /* Add terminating newline and null */
750 outbuf[outc++] = '\n';
754 /* FIXME RACE HAZARD: should start critical section error_log_use here */
756 /* deal with glibc stupidity - it won't let you initialize logfp */
762 fputs(outbuf_save, logfp);
764 if (loglevel == LOG_LEVEL_FATAL)
766 fatal_error(outbuf_save);
770 /* FIXME RACE HAZARD: should end critical section error_log_use here */
772 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
773 /* Write to display */
774 LogPutString(outbuf_save);
775 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
781 /*********************************************************************
783 * Function : w32_socket_strerr
785 * Description : Translate the return value from WSAGetLastError()
789 * 1 : errcode = The return value from WSAGetLastError().
790 * 2 : tmp_buf = A temporary buffer that might be used to
793 * Returns : String representing the error code. This may be
794 * a global string constant or a string stored in
797 *********************************************************************/
798 static char *w32_socket_strerr(int errcode, char *tmp_buf)
800 #define TEXT_FOR_ERROR(code,text) \
801 if (errcode == code) \
803 return #code " - " text; \
806 TEXT_FOR_ERROR(WSAEACCES, "Permission denied")
807 TEXT_FOR_ERROR(WSAEADDRINUSE, "Address already in use.")
808 TEXT_FOR_ERROR(WSAEADDRNOTAVAIL, "Cannot assign requested address.");
809 TEXT_FOR_ERROR(WSAEAFNOSUPPORT, "Address family not supported by protocol family.");
810 TEXT_FOR_ERROR(WSAEALREADY, "Operation already in progress.");
811 TEXT_FOR_ERROR(WSAECONNABORTED, "Software caused connection abort.");
812 TEXT_FOR_ERROR(WSAECONNREFUSED, "Connection refused.");
813 TEXT_FOR_ERROR(WSAECONNRESET, "Connection reset by peer.");
814 TEXT_FOR_ERROR(WSAEDESTADDRREQ, "Destination address required.");
815 TEXT_FOR_ERROR(WSAEFAULT, "Bad address.");
816 TEXT_FOR_ERROR(WSAEHOSTDOWN, "Host is down.");
817 TEXT_FOR_ERROR(WSAEHOSTUNREACH, "No route to host.");
818 TEXT_FOR_ERROR(WSAEINPROGRESS, "Operation now in progress.");
819 TEXT_FOR_ERROR(WSAEINTR, "Interrupted function call.");
820 TEXT_FOR_ERROR(WSAEINVAL, "Invalid argument.");
821 TEXT_FOR_ERROR(WSAEISCONN, "Socket is already connected.");
822 TEXT_FOR_ERROR(WSAEMFILE, "Too many open sockets.");
823 TEXT_FOR_ERROR(WSAEMSGSIZE, "Message too long.");
824 TEXT_FOR_ERROR(WSAENETDOWN, "Network is down.");
825 TEXT_FOR_ERROR(WSAENETRESET, "Network dropped connection on reset.");
826 TEXT_FOR_ERROR(WSAENETUNREACH, "Network is unreachable.");
827 TEXT_FOR_ERROR(WSAENOBUFS, "No buffer space available.");
828 TEXT_FOR_ERROR(WSAENOPROTOOPT, "Bad protocol option.");
829 TEXT_FOR_ERROR(WSAENOTCONN, "Socket is not connected.");
830 TEXT_FOR_ERROR(WSAENOTSOCK, "Socket operation on non-socket.");
831 TEXT_FOR_ERROR(WSAEOPNOTSUPP, "Operation not supported.");
832 TEXT_FOR_ERROR(WSAEPFNOSUPPORT, "Protocol family not supported.");
833 TEXT_FOR_ERROR(WSAEPROCLIM, "Too many processes.");
834 TEXT_FOR_ERROR(WSAEPROTONOSUPPORT, "Protocol not supported.");
835 TEXT_FOR_ERROR(WSAEPROTOTYPE, "Protocol wrong type for socket.");
836 TEXT_FOR_ERROR(WSAESHUTDOWN, "Cannot send after socket shutdown.");
837 TEXT_FOR_ERROR(WSAESOCKTNOSUPPORT, "Socket type not supported.");
838 TEXT_FOR_ERROR(WSAETIMEDOUT, "Connection timed out.");
839 TEXT_FOR_ERROR(WSAEWOULDBLOCK, "Resource temporarily unavailable.");
840 TEXT_FOR_ERROR(WSAHOST_NOT_FOUND, "Host not found.");
841 TEXT_FOR_ERROR(WSANOTINITIALISED, "Successful WSAStartup not yet performed.");
842 TEXT_FOR_ERROR(WSANO_DATA, "Valid name, no data record of requested type.");
843 TEXT_FOR_ERROR(WSANO_RECOVERY, "This is a non-recoverable error.");
844 TEXT_FOR_ERROR(WSASYSNOTREADY, "Network subsystem is unavailable.");
845 TEXT_FOR_ERROR(WSATRY_AGAIN, "Non-authoritative host not found.");
846 TEXT_FOR_ERROR(WSAVERNOTSUPPORTED, "WINSOCK.DLL version out of range.");
847 TEXT_FOR_ERROR(WSAEDISCON, "Graceful shutdown in progress.");
849 * The following error codes are documented in the Microsoft WinSock
850 * reference guide, but don't actually exist.
852 * TEXT_FOR_ERROR(WSA_INVALID_HANDLE, "Specified event object handle is invalid.");
853 * TEXT_FOR_ERROR(WSA_INVALID_PARAMETER, "One or more parameters are invalid.");
854 * TEXT_FOR_ERROR(WSAINVALIDPROCTABLE, "Invalid procedure table from service provider.");
855 * TEXT_FOR_ERROR(WSAINVALIDPROVIDER, "Invalid service provider version number.");
856 * TEXT_FOR_ERROR(WSA_IO_PENDING, "Overlapped operations will complete later.");
857 * TEXT_FOR_ERROR(WSA_IO_INCOMPLETE, "Overlapped I/O event object not in signaled state.");
858 * TEXT_FOR_ERROR(WSA_NOT_ENOUGH_MEMORY, "Insufficient memory available.");
859 * TEXT_FOR_ERROR(WSAPROVIDERFAILEDINIT, "Unable to initialize a service provider.");
860 * TEXT_FOR_ERROR(WSASYSCALLFAILURE, "System call failure.");
861 * TEXT_FOR_ERROR(WSA_OPERATION_ABORTED, "Overlapped operation aborted.");
864 sprintf(tmp_buf, "(error number %d)", errcode);
867 #endif /* def _WIN32 */