1 const char errlog_rcs[] = "$Id: errlog.c,v 1.91 2009/03/18 21:56:30 fabiankeil 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) 2001-2009 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 1.91 2009/03/18 21:56:30 fabiankeil
37 * In init_error_log(), suppress the "(Re-)Opening logfile" message if
38 * we're still logging to stderr. This restores the "silent mode", but
39 * with LOG_LEVEL_INFO enabled, the show_version() info is written to
40 * the logfile as intended.
42 * Revision 1.90 2009/03/18 20:43:19 fabiankeil
43 * Don't enable LOG_LEVEL_INFO by default and don't apply the user's
44 * debug settings until the logfile has been opened (if there is one).
45 * Patch submitted by Roland in #2624120.
47 * Revision 1.89 2009/03/07 12:56:12 fabiankeil
48 * Add log_error() support for unsigned long long (%lld).
50 * Revision 1.88 2009/03/07 11:34:36 fabiankeil
51 * Omit timestamp and thread id in the mingw32 message box.
53 * Revision 1.87 2009/03/01 18:28:24 fabiankeil
54 * Help clang understand that we aren't dereferencing
57 * Revision 1.86 2009/02/09 21:21:15 fabiankeil
58 * Now that init_log_module() is called earlier, call show_version()
59 * later on from main() directly so it doesn't get called for --help
62 * Revision 1.85 2009/02/06 17:51:38 fabiankeil
63 * Be prepared if I break the log module initialization again.
65 * Revision 1.84 2008/12/14 15:46:22 fabiankeil
66 * Give crunched requests their own log level.
68 * Revision 1.83 2008/12/04 18:14:32 fabiankeil
69 * Fix some cparser warnings.
71 * Revision 1.82 2008/11/23 16:06:58 fabiankeil
72 * Update a log message I missed in 1.80.
74 * Revision 1.81 2008/11/23 15:59:27 fabiankeil
75 * - Update copyright range.
76 * - Remove stray line breaks in a log message
77 * nobody is supposed to see anyway.
79 * Revision 1.80 2008/11/23 15:49:49 fabiankeil
80 * In log_error(), don't surround the thread id with "Privoxy(" and ")".
82 * Revision 1.79 2008/10/20 17:09:25 fabiankeil
83 * Update init_error_log() description to match reality.
85 * Revision 1.78 2008/09/07 16:59:31 fabiankeil
86 * Update a comment to reflect that we
87 * have mutex support on mingw32 now.
89 * Revision 1.77 2008/09/07 12:43:44 fabiankeil
90 * Move the LogPutString() call in log_error() into the locked
91 * region so the Windows GUI log is consistent with the logfile.
93 * Revision 1.76 2008/09/07 12:35:05 fabiankeil
94 * Add mutex lock support for _WIN32.
96 * Revision 1.75 2008/09/04 08:13:58 fabiankeil
97 * Prepare for critical sections on Windows by adding a
98 * layer of indirection before the pthread mutex functions.
100 * Revision 1.74 2008/08/06 18:33:36 fabiankeil
101 * If the "close fd first" workaround doesn't work,
102 * the fatal error message will be lost, so we better
103 * explain the consequences while we still can.
105 * Revision 1.73 2008/08/04 19:06:55 fabiankeil
106 * Add a lame workaround for the "can't open an already open
107 * logfile on OS/2" problem reported by Maynard in #2028842
108 * and describe what a real solution would look like.
110 * Revision 1.72 2008/07/27 12:04:28 fabiankeil
111 * Fix a comment typo.
113 * Revision 1.71 2008/06/28 17:17:15 fabiankeil
114 * Remove another stray semicolon.
116 * Revision 1.70 2008/06/28 17:10:29 fabiankeil
117 * Remove stray semicolon in get_log_timestamp().
118 * Reported by Jochen Voss in #2005221.
120 * Revision 1.69 2008/05/30 15:55:25 fabiankeil
121 * Declare variable "debug" static and complain about its name.
123 * Revision 1.68 2008/04/27 16:50:46 fabiankeil
124 * Remove an incorrect assertion. The value of debug may change if
125 * the configuration is reloaded in another thread. While we could
126 * cache the initial value, the assertion doesn't seem worth it.
128 * Revision 1.67 2008/03/27 18:27:23 fabiankeil
129 * Remove kill-popups action.
131 * Revision 1.66 2008/01/31 15:38:14 fabiankeil
132 * - Make the logfp assertion more strict. As of 1.63, the "||" could
133 * have been an "&&", which means we can use two separate assertions
134 * and skip on of them on Windows.
135 * - Break a long commit message line in two.
137 * Revision 1.65 2008/01/31 14:44:33 fabiankeil
138 * Use (a != b) instead of !(a == b) so the sanity check looks less insane.
140 * Revision 1.64 2008/01/21 18:56:46 david__schmidt
141 * Swap #def from negative to positive, re-joined it so it didn't
142 * span an assertion (compilation failure on OS/2)
144 * Revision 1.63 2007/12/15 19:49:32 fabiankeil
145 * Stop overloading logfile to control the mingw32 log window as well.
146 * It's no longer necessary now that we disable all debug lines by default
147 * and at least one user perceived it as a regression (added in 1.55).
149 * Revision 1.62 2007/11/30 15:33:46 fabiankeil
150 * Unbreak LOG_LEVEL_FATAL. It wasn't fatal with logging disabled
151 * and on mingw32 fatal log messages didn't end up in the log file.
153 * Revision 1.61 2007/11/04 19:03:01 fabiankeil
154 * Fix another deadlock Hal spotted and that mysteriously didn't affect FreeBSD.
156 * Revision 1.60 2007/11/03 19:03:31 fabiankeil
157 * - Prevent the Windows GUI from showing the version two times in a row.
158 * - Stop using the imperative in the "(Re-)Open logfile" message.
159 * - Ditch the "Switching to daemon mode" message as the detection
160 * whether or not we're already in daemon mode doesn't actually work.
162 * Revision 1.59 2007/11/01 12:50:56 fabiankeil
163 * Here's looking at you, deadlock.
165 * Revision 1.58 2007/10/28 19:04:21 fabiankeil
166 * Don't mention daemon mode in "Logging disabled" message. Some
167 * platforms call it differently and it's not really relevant anyway.
169 * Revision 1.57 2007/10/27 13:02:26 fabiankeil
170 * Relocate daemon-mode-related log messages to make sure
171 * they aren't shown again in case of configuration reloads.
173 * Revision 1.56 2007/10/14 14:26:56 fabiankeil
174 * Remove the old log_error() version.
176 * Revision 1.55 2007/10/14 14:12:41 fabiankeil
177 * When in daemon mode, close stderr after the configuration file has been
178 * parsed the first time. If logfile isn't set, stop logging. Fixes BR#897436.
180 * Revision 1.54 2007/09/22 16:15:34 fabiankeil
181 * - Let it compile with pcc.
182 * - Move our includes below system includes to prevent macro conflicts.
184 * Revision 1.53 2007/08/05 13:53:14 fabiankeil
185 * #1763173 from Stefan Huehner: declare some more functions
186 * static and use void instead of empty parameter lists.
188 * Revision 1.52 2007/07/14 07:28:47 fabiankeil
189 * Add translation function for JB_ERR_FOO codes.
191 * Revision 1.51 2007/05/11 11:51:34 fabiankeil
192 * Fix a type mismatch warning.
194 * Revision 1.50 2007/04/11 10:55:44 fabiankeil
195 * Enforce some assertions that could be triggered
196 * on mingw32 and other systems where we use threads
199 * Revision 1.49 2007/04/08 16:44:15 fabiankeil
200 * We need <sys/time.h> for gettimeofday(), not <time.h>.
202 * Revision 1.48 2007/03/31 13:33:28 fabiankeil
203 * Add alternative log_error() with timestamps
204 * that contain milliseconds and without using
205 * strcpy(), strcat() or sprintf().
207 * Revision 1.47 2006/11/28 15:25:15 fabiankeil
208 * Only unlink the pidfile if it's actually used.
210 * Revision 1.46 2006/11/13 19:05:51 fabiankeil
211 * Make pthread mutex locking more generic. Instead of
212 * checking for OSX and OpenBSD, check for FEATURE_PTHREAD
213 * and use mutex locking unless there is an _r function
214 * available. Better safe than sorry.
216 * Fixes "./configure --disable-pthread" and should result
217 * in less threading-related problems on pthread-using platforms,
218 * but it still doesn't fix BR#1122404.
220 * Revision 1.45 2006/08/21 11:15:54 david__schmidt
221 * MS Visual C++ build updates
223 * Revision 1.44 2006/08/18 16:03:16 david__schmidt
224 * Tweak for OS/2 build happiness.
226 * Revision 1.43 2006/08/03 02:46:41 david__schmidt
227 * Incorporate Fabian Keil's patch work:
228 * http://www.fabiankeil.de/sourcecode/privoxy/
230 * Revision 1.42 2006/07/18 14:48:46 david__schmidt
231 * Reorganizing the repository: swapping out what was HEAD (the old 3.1 branch)
232 * with what was really the latest development (the v_3_0_branch branch)
234 * Revision 1.40.2.4 2005/04/03 20:10:50 david__schmidt
235 * Thanks to Jindrich Makovicka for a race condition fix for the log
236 * file. The race condition remains for non-pthread implementations.
237 * Reference patch #1175720.
239 * Revision 1.40.2.3 2003/03/07 03:41:04 david__schmidt
240 * Wrapping all *_r functions (the non-_r versions of them) with mutex
241 * semaphores for OSX. Hopefully this will take care of all of those pesky
244 * Revision 1.40.2.2 2002/09/28 00:30:57 david__schmidt
245 * Update error logging to give sane values for thread IDs on Mach kernels.
246 * It's still a hack, but at least it looks farily normal. We print the
247 * absolute value of the first 4 bytes of the pthread_t modded with 1000.
249 * Revision 1.40.2.1 2002/09/25 12:47:42 oes
250 * Make log_error safe against NULL string arguments
252 * Revision 1.40 2002/05/22 01:27:27 david__schmidt
254 * Add os2_socket_strerr mirroring w32_socket_strerr.
256 * Revision 1.39 2002/04/03 17:15:27 gliptak
257 * zero padding thread ids in log
259 * Revision 1.38 2002/03/31 17:18:59 jongfoster
260 * Win32 only: Enabling STRICT to fix a VC++ compile warning.
262 * Revision 1.37 2002/03/27 14:32:43 david__schmidt
263 * More compiler warning message maintenance
265 * Revision 1.36 2002/03/26 22:29:54 swa
266 * we have a new homepage!
268 * Revision 1.35 2002/03/24 15:23:33 jongfoster
271 * Revision 1.34 2002/03/24 13:25:43 swa
272 * name change related issues
274 * Revision 1.33 2002/03/13 00:27:04 jongfoster
277 * Revision 1.32 2002/03/07 03:46:17 oes
278 * Fixed compiler warnings
280 * Revision 1.31 2002/03/06 23:02:57 jongfoster
283 * Revision 1.30 2002/03/05 22:43:45 david__schmidt
284 * - Better error reporting on OS/2
285 * - Fix double-slash comment (oops)
287 * Revision 1.29 2002/03/04 23:45:13 jongfoster
288 * Printing thread ID if using Win32 native threads
290 * Revision 1.28 2002/03/04 17:59:59 oes
291 * Deleted deletePidFile(), cosmetics
293 * Revision 1.27 2002/03/04 02:08:01 david__schmidt
294 * Enable web editing of actions file on OS/2 (it had been broken all this time!)
296 * Revision 1.26 2002/01/09 19:05:45 steudten
297 * Fix big memory leak.
299 * Revision 1.25 2002/01/09 14:32:08 oes
300 * Added support for gmtime_r and localtime_r.
302 * Revision 1.24 2001/12/30 14:07:32 steudten
303 * - Add signal handling (unix)
304 * - Add SIGHUP handler (unix)
305 * - Add creation of pidfile (unix)
306 * - Add action 'top' in rc file (RH)
307 * - Add entry 'SIGNALS' to manpage
308 * - Add exit message to logfile (unix)
310 * Revision 1.23 2001/11/07 00:02:13 steudten
311 * Add line number in error output for lineparsing for
312 * actionsfile and configfile.
313 * Special handling for CLF added.
315 * Revision 1.22 2001/11/05 23:43:05 steudten
316 * Add time+date to log files.
318 * Revision 1.21 2001/10/25 03:40:47 david__schmidt
319 * Change in porting tactics: OS/2's EMX porting layer doesn't allow multiple
320 * threads to call select() simultaneously. So, it's time to do a real, live,
321 * native OS/2 port. See defines for __EMX__ (the porting layer) vs. __OS2__
322 * (native). Both versions will work, but using __OS2__ offers multi-threading.
324 * Revision 1.20 2001/09/16 23:04:34 jongfoster
327 * Revision 1.19 2001/09/13 20:08:06 jongfoster
328 * Adding support for LOG_LEVEL_CGI
330 * Revision 1.18 2001/09/10 11:27:24 oes
331 * Declaration of w32_socket_strerr now conditional
333 * Revision 1.17 2001/09/10 10:17:13 oes
334 * Removed unused variable; Fixed sprintf format
336 * Revision 1.16 2001/07/30 22:08:36 jongfoster
337 * Tidying up #defines:
338 * - All feature #defines are now of the form FEATURE_xxx
339 * - Permanently turned off WIN_GUI_EDIT
340 * - Permanently turned on WEBDAV and SPLIT_PROXY_ARGS
342 * Revision 1.15 2001/07/29 17:41:10 jongfoster
343 * Now prints thread ID for each message (pthreads only)
345 * Revision 1.14 2001/07/19 19:03:48 haroon
346 * - Added case for LOG_LEVEL_POPUPS
348 * Revision 1.13 2001/07/13 13:58:58 oes
349 * - Added case for LOG_LEVEL_DEANIMATE
350 * - Removed all #ifdef PCRS
352 * Revision 1.12 2001/06/09 10:55:28 jongfoster
353 * Changing BUFSIZ ==> BUFFER_SIZE
355 * Revision 1.11 2001/06/01 18:14:49 jongfoster
356 * Changing the calls to strerr() to check HAVE_STRERR (which is defined
357 * in config.h if appropriate) rather than the NO_STRERR macro.
359 * Revision 1.10 2001/05/29 11:52:21 oes
360 * Conditional compilation of w32_socket_error
362 * Revision 1.9 2001/05/28 16:15:17 jongfoster
363 * Improved reporting of errors under Win32.
365 * Revision 1.8 2001/05/26 17:25:14 jongfoster
366 * Added support for CLF (Common Log Format) and fixed LOG_LEVEL_LOG
368 * Revision 1.7 2001/05/26 15:21:28 jongfoster
369 * Activity animation in Win32 GUI now works even if debug==0
371 * Revision 1.6 2001/05/25 21:55:08 jongfoster
372 * Now cleans up properly on FATAL (removes taskbar icon etc)
374 * Revision 1.5 2001/05/22 18:46:04 oes
376 * - Enabled filtering banners by size rather than URL
377 * by adding patterns that replace all standard banner
378 * sizes with the "Junkbuster" gif to the re_filterfile
380 * - Enabled filtering WebBugs by providing a pattern
381 * which kills all 1x1 images
383 * - Added support for PCRE_UNGREEDY behaviour to pcrs,
384 * which is selected by the (nonstandard and therefore
385 * capital) letter 'U' in the option string.
386 * It causes the quantifiers to be ungreedy by default.
387 * Appending a ? turns back to greedy (!).
389 * - Added a new interceptor ijb-send-banner, which
390 * sends back the "Junkbuster" gif. Without imagelist or
391 * MSIE detection support, or if tinygif = 1, or the
392 * URL isn't recognized as an imageurl, a lame HTML
393 * explanation is sent instead.
395 * - Added new feature, which permits blocking remote
396 * script redirects and firing back a local redirect
398 * The feature is conditionally compiled, i.e. it
399 * can be disabled with --disable-fast-redirects,
400 * plus it must be activated by a "fast-redirects"
401 * line in the config file, has its own log level
402 * and of course wants to be displayed by show-proxy-args
403 * Note: Boy, all the #ifdefs in 1001 locations and
404 * all the fumbling with configure.in and acconfig.h
405 * were *way* more work than the feature itself :-(
407 * - Because a generic redirect template was needed for
408 * this, tinygif = 3 now uses the same.
410 * - Moved GIFs, and other static HTTP response templates
415 * - Removed some >400 CRs again (Jon, you really worked
418 * Revision 1.4 2001/05/21 19:32:54 jongfoster
419 * Added another #ifdef _WIN_CONSOLE
421 * Revision 1.3 2001/05/20 01:11:40 jongfoster
422 * Added support for LOG_LEVEL_FATAL
423 * Renamed LOG_LEVEL_FRC to LOG_LEVEL_FORCE,
424 * and LOG_LEVEL_REF to LOG_LEVEL_RE_FILTER
426 * Revision 1.2 2001/05/17 22:42:01 oes
427 * - Cleaned CRLF's from the sources and related files
428 * - Repaired logging for REF and FRC
430 * Revision 1.1.1.1 2001/05/15 13:58:51 oes
431 * Initial import of version 2.9.3 source tree
434 *********************************************************************/
443 #include "miscutil.h"
445 /* For gettimeofday() */
446 #include <sys/time.h>
448 #if !defined(_WIN32) && !defined(__OS2__)
450 #endif /* !defined(_WIN32) && !defined(__OS2__) */
462 #endif /* ndef _WIN_CONSOLE */
463 #endif /* def _WIN32 */
465 #define inline __inline
466 #endif /* def _MSC_VER */
469 #include <sys/socket.h> /* For sock_errno */
478 const char errlog_h_rcs[] = ERRLOG_H_VERSION;
482 * LOG_LEVEL_FATAL cannot be turned off. (There are
483 * some exceptional situations where we need to get a
484 * message to the user).
486 #define LOG_LEVEL_MINIMUM LOG_LEVEL_FATAL
488 /* where to log (default: stderr) */
489 static FILE *logfp = NULL;
491 /* logging detail level. XXX: stupid name. */
492 static int debug = (LOG_LEVEL_FATAL | LOG_LEVEL_ERROR);
494 /* static functions */
495 static void fatal_error(const char * error_message);
497 static char *w32_socket_strerr(int errcode, char *tmp_buf);
500 static char *os2_socket_strerr(int errcode, char *tmp_buf);
503 #ifdef MUTEX_LOCKS_AVAILABLE
504 static inline void lock_logfile(void)
506 privoxy_mutex_lock(&log_mutex);
508 static inline void unlock_logfile(void)
510 privoxy_mutex_unlock(&log_mutex);
512 static inline void lock_loginit(void)
514 privoxy_mutex_lock(&log_init_mutex);
516 static inline void unlock_loginit(void)
518 privoxy_mutex_unlock(&log_init_mutex);
520 #else /* ! MUTEX_LOCKS_AVAILABLE */
522 * FIXME we need a cross-platform locking mechanism.
523 * The locking/unlocking functions below should be
524 * fleshed out for non-pthread implementations.
526 static inline void lock_logfile() {}
527 static inline void unlock_logfile() {}
528 static inline void lock_loginit() {}
529 static inline void unlock_loginit() {}
532 /*********************************************************************
534 * Function : fatal_error
536 * Description : Displays a fatal error to standard error (or, on
537 * a WIN32 GUI, to a dialog box), and exits Privoxy
538 * with status code 1.
541 * 1 : error_message = The error message to display.
543 * Returns : Does not return.
545 *********************************************************************/
546 static void fatal_error(const char *error_message)
548 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
549 /* Skip timestamp and thread id for the message box. */
550 const char *box_message = strstr(error_message, "Fatal error");
551 if (NULL == box_message)
553 /* Shouldn't happen but ... */
554 box_message = error_message;
556 MessageBox(g_hwndLogFrame, box_message, "Privoxy Error",
557 MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_SETFOREGROUND | MB_TOPMOST);
559 /* Cleanup - remove taskbar icon etc. */
561 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
565 fputs(error_message, logfp);
579 /*********************************************************************
581 * Function : show_version
583 * Description : Logs the Privoxy version and the program name.
586 * 1 : prog_name = The program name.
590 *********************************************************************/
591 void show_version(const char *prog_name)
593 log_error(LOG_LEVEL_INFO, "Privoxy version " VERSION);
594 if (prog_name != NULL)
596 log_error(LOG_LEVEL_INFO, "Program name: %s", prog_name);
601 /*********************************************************************
603 * Function : init_log_module
605 * Description : Initializes the logging module to log to stderr.
606 * Can only be called while stderr hasn't been closed
607 * yet and is only supposed to be called once.
610 * 1 : prog_name = The program name.
614 *********************************************************************/
615 void init_log_module(void)
620 set_debug_level(debug);
624 /*********************************************************************
626 * Function : set_debug_level
628 * Description : Sets the debug level to the provided value
629 * plus LOG_LEVEL_MINIMUM.
631 * XXX: we should only use the LOG_LEVEL_MINIMUM
632 * until the first time the configuration file has
635 * Parameters : 1: debug_level = The debug level to set.
639 *********************************************************************/
640 void set_debug_level(int debug_level)
642 debug = debug_level | LOG_LEVEL_MINIMUM;
646 /*********************************************************************
648 * Function : disable_logging
650 * Description : Disables logging.
656 *********************************************************************/
657 void disable_logging(void)
661 log_error(LOG_LEVEL_INFO,
662 "No logfile configured. Please enable it before reporting any problems.");
671 /*********************************************************************
673 * Function : init_error_log
675 * Description : Initializes the logging module to log to a file.
677 * XXX: should be renamed.
680 * 1 : prog_name = The program name.
681 * 2 : logfname = The logfile to (re)open.
685 *********************************************************************/
686 void init_error_log(const char *prog_name, const char *logfname)
690 assert(NULL != logfname);
694 if ((logfp != NULL) && (logfp != stderr))
696 log_error(LOG_LEVEL_INFO, "(Re-)Opening logfile \'%s\'", logfname);
699 /* set the designated log file */
700 fp = fopen(logfname, "a");
701 if ((NULL == fp) && (logfp != NULL))
704 * Some platforms (like OS/2) don't allow us to open
705 * the same file twice, therefore we give it another
706 * shot after closing the old file descriptor first.
708 * We don't do it right away because it prevents us
709 * from logging the "can't open logfile" message to
712 * XXX: this is a lame workaround and once the next
713 * release is out we should stop bothering reopening
714 * the logfile unless we have to.
716 * Currently we reopen it every time the config file
717 * has been reloaded, but actually we only have to
718 * reopen it if the file name changed or if the
719 * configuration reloas was caused by a SIGHUP.
721 log_error(LOG_LEVEL_INFO, "Failed to reopen logfile: \'%s\'. "
722 "Retrying after closing the old file descriptor first. If that "
723 "doesn't work, Privoxy will exit without being able to log a message.",
729 fp = fopen(logfname, "a");
734 log_error(LOG_LEVEL_FATAL, "init_error_log(): can't open logfile: \'%s\'", logfname);
737 /* set logging to be completely unbuffered */
748 show_version(prog_name);
752 } /* init_error_log */
755 /*********************************************************************
757 * Function : get_thread_id
759 * Description : Returns a number that is different for each thread.
761 * XXX: Should be moved elsewhere (miscutil.c?)
765 * Returns : thread_id
767 *********************************************************************/
768 static long get_thread_id(void)
770 long this_thread = 1; /* was: pthread_t this_thread;*/
774 APIRET ulrc; /* XXX: I have no clue what this does */
777 /* FIXME get current thread id */
778 #ifdef FEATURE_PTHREAD
779 this_thread = (long)pthread_self();
782 * Mac OSX (and perhaps other Mach instances) doesn't have a debuggable
783 * value at the first 4 bytes of pthread_self()'s return value, a pthread_t.
784 * pthread_t is supposed to be opaque... but it's fairly random, though, so
785 * we make it mostly presentable.
787 this_thread = abs(this_thread % 1000);
788 #endif /* def __MACH__ */
789 #elif defined(_WIN32)
790 this_thread = GetCurrentThreadId();
791 #elif defined(__OS2__)
792 ulrc = DosGetInfoBlocks(&ptib, NULL);
794 this_thread = ptib -> tib_ptib2 -> tib2_ultid;
795 #endif /* def FEATURE_PTHREAD */
801 /*********************************************************************
803 * Function : get_log_timestamp
805 * Description : Generates the time stamp for the log message prefix.
808 * 1 : buffer = Storage buffer
809 * 2 : buffer_size = Size of storage buffer
811 * Returns : Number of written characters or 0 for error.
813 *********************************************************************/
814 static inline size_t get_log_timestamp(char *buffer, size_t buffer_size)
819 struct timeval tv_now; /* XXX: stupid name */
821 int msecs_length = 0;
823 gettimeofday(&tv_now, NULL);
824 msecs = tv_now.tv_usec / 1000;
828 #ifdef HAVE_LOCALTIME_R
829 tm_now = *localtime_r(&now, &tm_now);
830 #elif FEATURE_PTHREAD
831 privoxy_mutex_lock(&localtime_mutex);
832 tm_now = *localtime(&now);
833 privoxy_mutex_unlock(&localtime_mutex);
835 tm_now = *localtime(&now);
838 length = strftime(buffer, buffer_size, "%b %d %H:%M:%S", &tm_now);
839 if (length > (size_t)0)
841 msecs_length = snprintf(buffer+length, buffer_size - length, ".%.3ld", msecs);
843 if (msecs_length > 0)
845 length += (size_t)msecs_length;
856 /*********************************************************************
858 * Function : get_clf_timestamp
860 * Description : Generates a Common Log Format time string.
863 * 1 : buffer = Storage buffer
864 * 2 : buffer_size = Size of storage buffer
866 * Returns : Number of written characters or 0 for error.
868 *********************************************************************/
869 static inline size_t get_clf_timestamp(char *buffer, size_t buffer_size)
872 * Complex because not all OSs have tm_gmtoff or
873 * the %z field in strftime()
878 #ifdef HAVE_LOCALTIME_R
887 gmt = *gmtime_r(&now, &gmt);
888 #elif FEATURE_PTHREAD
889 privoxy_mutex_lock(&gmtime_mutex);
891 privoxy_mutex_unlock(&gmtime_mutex);
895 #ifdef HAVE_LOCALTIME_R
896 tm_now = localtime_r(&now, &dummy);
897 #elif FEATURE_PTHREAD
898 privoxy_mutex_lock(&localtime_mutex);
899 tm_now = localtime(&now);
900 privoxy_mutex_unlock(&localtime_mutex);
902 tm_now = localtime(&now);
904 days = tm_now->tm_yday - gmt.tm_yday;
905 hrs = ((days < -1 ? 24 : 1 < days ? -24 : days * 24) + tm_now->tm_hour - gmt.tm_hour);
906 mins = hrs * 60 + tm_now->tm_min - gmt.tm_min;
908 length = strftime(buffer, buffer_size, "%d/%b/%Y:%H:%M:%S ", tm_now);
910 if (length > (size_t)0)
912 tz_length = snprintf(buffer+length, buffer_size-length,
913 "%+03d%02d", mins / 60, abs(mins) % 60);
917 length += (size_t)tz_length;
928 /*********************************************************************
930 * Function : get_log_level_string
932 * Description : Translates a numerical loglevel into a string.
935 * 1 : loglevel = LOG_LEVEL_FOO
937 * Returns : Log level string.
939 *********************************************************************/
940 static inline const char *get_log_level_string(int loglevel)
942 char *log_level_string = NULL;
944 assert(0 < loglevel);
948 case LOG_LEVEL_ERROR:
949 log_level_string = "Error";
951 case LOG_LEVEL_FATAL:
952 log_level_string = "Fatal error";
955 log_level_string = "Request";
957 case LOG_LEVEL_CONNECT:
958 log_level_string = "Connect";
961 log_level_string = "Writing";
963 case LOG_LEVEL_HEADER:
964 log_level_string = "Header";
967 log_level_string = "Info";
969 case LOG_LEVEL_RE_FILTER:
970 log_level_string = "Re-Filter";
972 #ifdef FEATURE_FORCE_LOAD
973 case LOG_LEVEL_FORCE:
974 log_level_string = "Force";
976 #endif /* def FEATURE_FORCE_LOAD */
977 #ifdef FEATURE_FAST_REDIRECTS
978 case LOG_LEVEL_REDIRECTS:
979 log_level_string = "Redirect";
981 #endif /* def FEATURE_FAST_REDIRECTS */
982 case LOG_LEVEL_DEANIMATE:
983 log_level_string = "Gif-Deanimate";
985 case LOG_LEVEL_CRUNCH:
986 log_level_string = "Crunch";
989 log_level_string = "CGI";
992 log_level_string = "Unknown log level";
995 assert(NULL != log_level_string);
997 return log_level_string;
1001 /*********************************************************************
1003 * Function : log_error
1005 * Description : This is the error-reporting and logging function.
1008 * 1 : loglevel = the type of message to be logged
1009 * 2 : fmt = the main string we want logged, printf-like
1010 * 3 : ... = arguments to be inserted in fmt (printf-like).
1014 *********************************************************************/
1015 void log_error(int loglevel, const char *fmt, ...)
1018 char *outbuf = NULL;
1019 static char *outbuf_save = NULL;
1020 char tempbuf[BUFFER_SIZE];
1022 const char * src = fmt;
1026 * XXX: Make this a config option,
1027 * why else do we allocate instead of using
1030 size_t log_buffer_size = BUFFER_SIZE;
1032 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
1034 * Irrespective of debug setting, a GET/POST/CONNECT makes
1035 * the taskbar icon animate. (There is an option to disable
1036 * this but checking that is handled inside LogShowActivity()).
1038 if ((loglevel == LOG_LEVEL_GPC) || (loglevel == LOG_LEVEL_CRUNCH))
1042 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
1045 * verify that the loglevel applies to current
1046 * settings and that logging is enabled.
1047 * Bail out otherwise.
1049 if ((0 == (loglevel & debug))
1055 if (loglevel == LOG_LEVEL_FATAL)
1057 fatal_error("Fatal error. You're not supposed to"
1058 "see this message. Please file a bug report.");
1063 thread_id = get_thread_id();
1064 get_log_timestamp(timestamp, sizeof(timestamp));
1066 /* protect the whole function because of the static buffer (outbuf) */
1069 if (NULL == outbuf_save)
1071 outbuf_save = (char*)zalloc(log_buffer_size + 1); /* +1 for paranoia */
1072 if (NULL == outbuf_save)
1074 snprintf(tempbuf, sizeof(tempbuf),
1075 "%s %08lx Fatal error: Out of memory in log_error().",
1076 timestamp, thread_id);
1077 fatal_error(tempbuf); /* Exit */
1081 outbuf = outbuf_save;
1084 * Memsetting the whole buffer to zero (in theory)
1085 * makes things easier later on.
1087 memset(outbuf, 0, log_buffer_size);
1089 /* Add prefix for everything but Common Log Format messages */
1090 if (loglevel != LOG_LEVEL_CLF)
1092 length = (size_t)snprintf(outbuf, log_buffer_size, "%s %08lx %s: ",
1093 timestamp, thread_id, get_log_level_string(loglevel));
1096 /* get ready to scan var. args. */
1099 /* build formatted message from fmt and var-args */
1100 while ((*src) && (length < log_buffer_size-2))
1102 const char *sval = NULL; /* %N string */
1103 int ival; /* %N string length or an error code */
1104 unsigned uval; /* %u value */
1105 long lval; /* %l value */
1106 unsigned long ulval; /* %ul value */
1108 const char *format_string = tempbuf;
1113 outbuf[length++] = ch;
1115 * XXX: Only necessary on platforms where multiple threads
1116 * can write to the buffer at the same time because we
1117 * don't support mutexes (OS/2 for example).
1119 outbuf[length] = '\0';
1122 outbuf[length] = '\0';
1130 ival = va_arg( ap, int );
1131 snprintf(tempbuf, sizeof(tempbuf), "%d", ival);
1134 uval = va_arg( ap, unsigned );
1135 snprintf(tempbuf, sizeof(tempbuf), "%u", uval);
1138 /* this is a modifier that must be followed by u, lu, or d */
1142 lval = va_arg( ap, long );
1143 snprintf(tempbuf, sizeof(tempbuf), "%ld", lval);
1147 ulval = va_arg( ap, unsigned long );
1148 snprintf(tempbuf, sizeof(tempbuf), "%lu", ulval);
1150 else if ((ch == 'l') && (*src == 'u'))
1152 unsigned long long lluval = va_arg(ap, unsigned long long);
1153 snprintf(tempbuf, sizeof(tempbuf), "%llu", lluval);
1158 snprintf(tempbuf, sizeof(tempbuf), "Bad format string: \"%s\"", fmt);
1159 loglevel = LOG_LEVEL_FATAL;
1164 * Note that char paramaters are converted to int, so we need to
1165 * pass "int" to va_arg. (See K&R, 2nd ed, section A7.3.2, page 202)
1167 tempbuf[0] = (char) va_arg(ap, int);
1171 format_string = va_arg(ap, char *);
1172 if (format_string == NULL)
1174 format_string = "[null]";
1179 * Non-standard: Print a counted unterminated string.
1180 * Takes 2 parameters: int length, const char * string.
1182 ival = va_arg(ap, int);
1183 sval = va_arg(ap, char *);
1186 format_string = "[null]";
1192 /* That's ok (but stupid) */
1198 * That's not ok (and even more stupid)
1201 format_string = "[counted string lenght < 0]";
1204 else if ((size_t)ival >= sizeof(tempbuf))
1207 * String is too long, copy as much as possible.
1208 * It will be further truncated later.
1210 memcpy(tempbuf, sval, sizeof(tempbuf)-1);
1211 tempbuf[sizeof(tempbuf)-1] = '\0';
1215 memcpy(tempbuf, sval, (size_t) ival);
1216 tempbuf[ival] = '\0';
1220 /* Non-standard: Print error code from errno */
1222 ival = WSAGetLastError();
1223 format_string = w32_socket_strerr(ival, tempbuf);
1225 ival = sock_errno();
1228 format_string = os2_socket_strerr(ival, tempbuf);
1233 format_string = strerror(ival);
1235 #else /* ifndef _WIN32 */
1237 #ifdef HAVE_STRERROR
1238 format_string = strerror(ival);
1239 #else /* ifndef HAVE_STRERROR */
1240 format_string = NULL;
1241 #endif /* ndef HAVE_STRERROR */
1244 snprintf(tempbuf, sizeof(tempbuf), "(errno = %d)", ival);
1246 #endif /* ndef _WIN32 */
1249 /* Non-standard: Print a Common Log File timestamp */
1250 get_clf_timestamp(tempbuf, sizeof(tempbuf));
1253 snprintf(tempbuf, sizeof(tempbuf), "Bad format string: \"%s\"", fmt);
1254 loglevel = LOG_LEVEL_FATAL;
1258 assert(length < log_buffer_size);
1259 length += strlcpy(outbuf + length, format_string, log_buffer_size - length);
1261 if (length >= log_buffer_size-2)
1263 static char warning[] = "... [too long, truncated]";
1265 length = log_buffer_size - sizeof(warning) - 1;
1266 length += strlcpy(outbuf + length, warning, log_buffer_size - length);
1267 assert(length < log_buffer_size);
1271 } /* for( p ... ) */
1273 /* done with var. args */
1276 assert(length < log_buffer_size);
1277 length += strlcpy(outbuf + length, "\n", log_buffer_size - length);
1279 /* Some sanity checks */
1280 if ((length >= log_buffer_size)
1281 || (outbuf[log_buffer_size-1] != '\0')
1282 || (outbuf[log_buffer_size] != '\0')
1285 /* Repeat as assertions */
1286 assert(length < log_buffer_size);
1287 assert(outbuf[log_buffer_size-1] == '\0');
1289 * outbuf's real size is log_buffer_size+1,
1290 * so while this looks like an off-by-one,
1291 * we're only checking our paranoia byte.
1293 assert(outbuf[log_buffer_size] == '\0');
1295 snprintf(outbuf, log_buffer_size,
1296 "%s %08lx Fatal error: log_error()'s sanity checks failed."
1297 "length: %d. Exiting.",
1298 timestamp, thread_id, (int)length);
1299 loglevel = LOG_LEVEL_FATAL;
1304 * On Windows this is acceptable in case
1305 * we are logging to the GUI window only.
1307 assert(NULL != logfp);
1310 if (loglevel == LOG_LEVEL_FATAL)
1312 fatal_error(outbuf_save);
1313 /* Never get here */
1317 fputs(outbuf_save, logfp);
1320 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
1321 /* Write to display */
1322 LogPutString(outbuf_save);
1323 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
1330 /*********************************************************************
1332 * Function : jb_err_to_string
1334 * Description : Translates JB_ERR_FOO codes into strings.
1336 * XXX: the type of error codes is jb_err
1337 * but the typedef'inition is currently not
1338 * visible to all files that include errlog.h.
1341 * 1 : error = a valid jb_err code
1343 * Returns : A string with the jb_err translation
1345 *********************************************************************/
1346 const char *jb_err_to_string(int error)
1351 return "Success, no error";
1353 return "Out of memory";
1354 case JB_ERR_CGI_PARAMS:
1355 return "Missing or corrupt CGI parameters";
1357 return "Error opening, reading or writing a file";
1359 return "Parse error";
1360 case JB_ERR_MODIFIED:
1361 return "File has been modified outside of the CGI actions editor.";
1362 case JB_ERR_COMPRESS:
1363 return "(De)compression failure";
1366 return "Unknown error";
1369 return "Internal error";
1373 /*********************************************************************
1375 * Function : w32_socket_strerr
1377 * Description : Translate the return value from WSAGetLastError()
1381 * 1 : errcode = The return value from WSAGetLastError().
1382 * 2 : tmp_buf = A temporary buffer that might be used to
1385 * Returns : String representing the error code. This may be
1386 * a global string constant or a string stored in
1389 *********************************************************************/
1390 static char *w32_socket_strerr(int errcode, char *tmp_buf)
1392 #define TEXT_FOR_ERROR(code,text) \
1393 if (errcode == code) \
1395 return #code " - " text; \
1398 TEXT_FOR_ERROR(WSAEACCES, "Permission denied")
1399 TEXT_FOR_ERROR(WSAEADDRINUSE, "Address already in use.")
1400 TEXT_FOR_ERROR(WSAEADDRNOTAVAIL, "Cannot assign requested address.");
1401 TEXT_FOR_ERROR(WSAEAFNOSUPPORT, "Address family not supported by protocol family.");
1402 TEXT_FOR_ERROR(WSAEALREADY, "Operation already in progress.");
1403 TEXT_FOR_ERROR(WSAECONNABORTED, "Software caused connection abort.");
1404 TEXT_FOR_ERROR(WSAECONNREFUSED, "Connection refused.");
1405 TEXT_FOR_ERROR(WSAECONNRESET, "Connection reset by peer.");
1406 TEXT_FOR_ERROR(WSAEDESTADDRREQ, "Destination address required.");
1407 TEXT_FOR_ERROR(WSAEFAULT, "Bad address.");
1408 TEXT_FOR_ERROR(WSAEHOSTDOWN, "Host is down.");
1409 TEXT_FOR_ERROR(WSAEHOSTUNREACH, "No route to host.");
1410 TEXT_FOR_ERROR(WSAEINPROGRESS, "Operation now in progress.");
1411 TEXT_FOR_ERROR(WSAEINTR, "Interrupted function call.");
1412 TEXT_FOR_ERROR(WSAEINVAL, "Invalid argument.");
1413 TEXT_FOR_ERROR(WSAEISCONN, "Socket is already connected.");
1414 TEXT_FOR_ERROR(WSAEMFILE, "Too many open sockets.");
1415 TEXT_FOR_ERROR(WSAEMSGSIZE, "Message too long.");
1416 TEXT_FOR_ERROR(WSAENETDOWN, "Network is down.");
1417 TEXT_FOR_ERROR(WSAENETRESET, "Network dropped connection on reset.");
1418 TEXT_FOR_ERROR(WSAENETUNREACH, "Network is unreachable.");
1419 TEXT_FOR_ERROR(WSAENOBUFS, "No buffer space available.");
1420 TEXT_FOR_ERROR(WSAENOPROTOOPT, "Bad protocol option.");
1421 TEXT_FOR_ERROR(WSAENOTCONN, "Socket is not connected.");
1422 TEXT_FOR_ERROR(WSAENOTSOCK, "Socket operation on non-socket.");
1423 TEXT_FOR_ERROR(WSAEOPNOTSUPP, "Operation not supported.");
1424 TEXT_FOR_ERROR(WSAEPFNOSUPPORT, "Protocol family not supported.");
1425 TEXT_FOR_ERROR(WSAEPROCLIM, "Too many processes.");
1426 TEXT_FOR_ERROR(WSAEPROTONOSUPPORT, "Protocol not supported.");
1427 TEXT_FOR_ERROR(WSAEPROTOTYPE, "Protocol wrong type for socket.");
1428 TEXT_FOR_ERROR(WSAESHUTDOWN, "Cannot send after socket shutdown.");
1429 TEXT_FOR_ERROR(WSAESOCKTNOSUPPORT, "Socket type not supported.");
1430 TEXT_FOR_ERROR(WSAETIMEDOUT, "Connection timed out.");
1431 TEXT_FOR_ERROR(WSAEWOULDBLOCK, "Resource temporarily unavailable.");
1432 TEXT_FOR_ERROR(WSAHOST_NOT_FOUND, "Host not found.");
1433 TEXT_FOR_ERROR(WSANOTINITIALISED, "Successful WSAStartup not yet performed.");
1434 TEXT_FOR_ERROR(WSANO_DATA, "Valid name, no data record of requested type.");
1435 TEXT_FOR_ERROR(WSANO_RECOVERY, "This is a non-recoverable error.");
1436 TEXT_FOR_ERROR(WSASYSNOTREADY, "Network subsystem is unavailable.");
1437 TEXT_FOR_ERROR(WSATRY_AGAIN, "Non-authoritative host not found.");
1438 TEXT_FOR_ERROR(WSAVERNOTSUPPORTED, "WINSOCK.DLL version out of range.");
1439 TEXT_FOR_ERROR(WSAEDISCON, "Graceful shutdown in progress.");
1441 * The following error codes are documented in the Microsoft WinSock
1442 * reference guide, but don't actually exist.
1444 * TEXT_FOR_ERROR(WSA_INVALID_HANDLE, "Specified event object handle is invalid.");
1445 * TEXT_FOR_ERROR(WSA_INVALID_PARAMETER, "One or more parameters are invalid.");
1446 * TEXT_FOR_ERROR(WSAINVALIDPROCTABLE, "Invalid procedure table from service provider.");
1447 * TEXT_FOR_ERROR(WSAINVALIDPROVIDER, "Invalid service provider version number.");
1448 * TEXT_FOR_ERROR(WSA_IO_PENDING, "Overlapped operations will complete later.");
1449 * TEXT_FOR_ERROR(WSA_IO_INCOMPLETE, "Overlapped I/O event object not in signaled state.");
1450 * TEXT_FOR_ERROR(WSA_NOT_ENOUGH_MEMORY, "Insufficient memory available.");
1451 * TEXT_FOR_ERROR(WSAPROVIDERFAILEDINIT, "Unable to initialize a service provider.");
1452 * TEXT_FOR_ERROR(WSASYSCALLFAILURE, "System call failure.");
1453 * TEXT_FOR_ERROR(WSA_OPERATION_ABORTED, "Overlapped operation aborted.");
1456 sprintf(tmp_buf, "(error number %d)", errcode);
1459 #endif /* def _WIN32 */
1463 /*********************************************************************
1465 * Function : os2_socket_strerr
1467 * Description : Translate the return value from sock_errno()
1471 * 1 : errcode = The return value from sock_errno().
1472 * 2 : tmp_buf = A temporary buffer that might be used to
1475 * Returns : String representing the error code. This may be
1476 * a global string constant or a string stored in
1479 *********************************************************************/
1480 static char *os2_socket_strerr(int errcode, char *tmp_buf)
1482 #define TEXT_FOR_ERROR(code,text) \
1483 if (errcode == code) \
1485 return #code " - " text; \
1488 TEXT_FOR_ERROR(SOCEPERM , "Not owner.")
1489 TEXT_FOR_ERROR(SOCESRCH , "No such process.")
1490 TEXT_FOR_ERROR(SOCEINTR , "Interrupted system call.")
1491 TEXT_FOR_ERROR(SOCENXIO , "No such device or address.")
1492 TEXT_FOR_ERROR(SOCEBADF , "Bad file number.")
1493 TEXT_FOR_ERROR(SOCEACCES , "Permission denied.")
1494 TEXT_FOR_ERROR(SOCEFAULT , "Bad address.")
1495 TEXT_FOR_ERROR(SOCEINVAL , "Invalid argument.")
1496 TEXT_FOR_ERROR(SOCEMFILE , "Too many open files.")
1497 TEXT_FOR_ERROR(SOCEPIPE , "Broken pipe.")
1498 TEXT_FOR_ERROR(SOCEWOULDBLOCK , "Operation would block.")
1499 TEXT_FOR_ERROR(SOCEINPROGRESS , "Operation now in progress.")
1500 TEXT_FOR_ERROR(SOCEALREADY , "Operation already in progress.")
1501 TEXT_FOR_ERROR(SOCENOTSOCK , "Socket operation on non-socket.")
1502 TEXT_FOR_ERROR(SOCEDESTADDRREQ , "Destination address required.")
1503 TEXT_FOR_ERROR(SOCEMSGSIZE , "Message too long.")
1504 TEXT_FOR_ERROR(SOCEPROTOTYPE , "Protocol wrong type for socket.")
1505 TEXT_FOR_ERROR(SOCENOPROTOOPT , "Protocol not available.")
1506 TEXT_FOR_ERROR(SOCEPROTONOSUPPORT, "Protocol not supported.")
1507 TEXT_FOR_ERROR(SOCESOCKTNOSUPPORT, "Socket type not supported.")
1508 TEXT_FOR_ERROR(SOCEOPNOTSUPP , "Operation not supported.")
1509 TEXT_FOR_ERROR(SOCEPFNOSUPPORT , "Protocol family not supported.")
1510 TEXT_FOR_ERROR(SOCEAFNOSUPPORT , "Address family not supported by protocol family.")
1511 TEXT_FOR_ERROR(SOCEADDRINUSE , "Address already in use.")
1512 TEXT_FOR_ERROR(SOCEADDRNOTAVAIL , "Can't assign requested address.")
1513 TEXT_FOR_ERROR(SOCENETDOWN , "Network is down.")
1514 TEXT_FOR_ERROR(SOCENETUNREACH , "Network is unreachable.")
1515 TEXT_FOR_ERROR(SOCENETRESET , "Network dropped connection on reset.")
1516 TEXT_FOR_ERROR(SOCECONNABORTED , "Software caused connection abort.")
1517 TEXT_FOR_ERROR(SOCECONNRESET , "Connection reset by peer.")
1518 TEXT_FOR_ERROR(SOCENOBUFS , "No buffer space available.")
1519 TEXT_FOR_ERROR(SOCEISCONN , "Socket is already connected.")
1520 TEXT_FOR_ERROR(SOCENOTCONN , "Socket is not connected.")
1521 TEXT_FOR_ERROR(SOCESHUTDOWN , "Can't send after socket shutdown.")
1522 TEXT_FOR_ERROR(SOCETOOMANYREFS , "Too many references: can't splice.")
1523 TEXT_FOR_ERROR(SOCETIMEDOUT , "Operation timed out.")
1524 TEXT_FOR_ERROR(SOCECONNREFUSED , "Connection refused.")
1525 TEXT_FOR_ERROR(SOCELOOP , "Too many levels of symbolic links.")
1526 TEXT_FOR_ERROR(SOCENAMETOOLONG , "File name too long.")
1527 TEXT_FOR_ERROR(SOCEHOSTDOWN , "Host is down.")
1528 TEXT_FOR_ERROR(SOCEHOSTUNREACH , "No route to host.")
1529 TEXT_FOR_ERROR(SOCENOTEMPTY , "Directory not empty.")
1530 TEXT_FOR_ERROR(SOCEOS2ERR , "OS/2 Error.")
1532 sprintf(tmp_buf, "(error number %d)", errcode);
1535 #endif /* def __OS2__ */