1 const char errlog_rcs[] = "$Id: errlog.c,v 1.114 2012/03/09 17:55:50 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) 2001-2010 the
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.
34 *********************************************************************/
46 /* For gettimeofday() */
49 #if !defined(_WIN32) && !defined(__OS2__)
51 #endif /* !defined(_WIN32) && !defined(__OS2__) */
63 #endif /* ndef _WIN_CONSOLE */
64 #endif /* def _WIN32 */
66 #define inline __inline
67 #endif /* def _MSC_VER */
70 #include <sys/socket.h> /* For sock_errno */
79 const char errlog_h_rcs[] = ERRLOG_H_VERSION;
83 * LOG_LEVEL_FATAL cannot be turned off. (There are
84 * some exceptional situations where we need to get a
85 * message to the user).
87 #define LOG_LEVEL_MINIMUM LOG_LEVEL_FATAL
89 /* where to log (default: stderr) */
90 static FILE *logfp = NULL;
92 /* logging detail level. XXX: stupid name. */
93 static int debug = (LOG_LEVEL_FATAL | LOG_LEVEL_ERROR);
95 /* static functions */
96 static void fatal_error(const char * error_message);
98 static char *w32_socket_strerr(int errcode, char *tmp_buf);
101 static char *os2_socket_strerr(int errcode, char *tmp_buf);
104 #ifdef MUTEX_LOCKS_AVAILABLE
105 static inline void lock_logfile(void)
107 privoxy_mutex_lock(&log_mutex);
109 static inline void unlock_logfile(void)
111 privoxy_mutex_unlock(&log_mutex);
113 static inline void lock_loginit(void)
115 privoxy_mutex_lock(&log_init_mutex);
117 static inline void unlock_loginit(void)
119 privoxy_mutex_unlock(&log_init_mutex);
121 #else /* ! MUTEX_LOCKS_AVAILABLE */
123 * FIXME we need a cross-platform locking mechanism.
124 * The locking/unlocking functions below should be
125 * fleshed out for non-pthread implementations.
127 static inline void lock_logfile() {}
128 static inline void unlock_logfile() {}
129 static inline void lock_loginit() {}
130 static inline void unlock_loginit() {}
133 /*********************************************************************
135 * Function : fatal_error
137 * Description : Displays a fatal error to standard error (or, on
138 * a WIN32 GUI, to a dialog box), and exits Privoxy
139 * with status code 1.
142 * 1 : error_message = The error message to display.
144 * Returns : Does not return.
146 *********************************************************************/
147 static void fatal_error(const char *error_message)
149 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
150 /* Skip timestamp and thread id for the message box. */
151 const char *box_message = strstr(error_message, "Fatal error");
152 if (NULL == box_message)
154 /* Shouldn't happen but ... */
155 box_message = error_message;
157 MessageBox(g_hwndLogFrame, box_message, "Privoxy Error",
158 MB_OK | MB_ICONERROR | MB_TASKMODAL | MB_SETFOREGROUND | MB_TOPMOST);
160 /* Cleanup - remove taskbar icon etc. */
162 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
166 fputs(error_message, logfp);
180 /*********************************************************************
182 * Function : show_version
184 * Description : Logs the Privoxy version and the program name.
187 * 1 : prog_name = The program name.
191 *********************************************************************/
192 void show_version(const char *prog_name)
194 log_error(LOG_LEVEL_INFO, "Privoxy version " VERSION);
195 if (prog_name != NULL)
197 log_error(LOG_LEVEL_INFO, "Program name: %s", prog_name);
202 /*********************************************************************
204 * Function : init_log_module
206 * Description : Initializes the logging module to log to stderr.
207 * Can only be called while stderr hasn't been closed
208 * yet and is only supposed to be called once.
211 * 1 : prog_name = The program name.
215 *********************************************************************/
216 void init_log_module(void)
221 set_debug_level(debug);
225 /*********************************************************************
227 * Function : set_debug_level
229 * Description : Sets the debug level to the provided value
230 * plus LOG_LEVEL_MINIMUM.
232 * XXX: we should only use the LOG_LEVEL_MINIMUM
233 * until the first time the configuration file has
236 * Parameters : 1: debug_level = The debug level to set.
240 *********************************************************************/
241 void set_debug_level(int debug_level)
243 debug = debug_level | LOG_LEVEL_MINIMUM;
247 /*********************************************************************
249 * Function : debug_level_is_enabled
251 * Description : Checks if a certain debug level is enabled.
253 * Parameters : 1: debug_level = The debug level to check.
257 *********************************************************************/
258 int debug_level_is_enabled(int debug_level)
260 return (0 != (debug & debug_level));
264 /*********************************************************************
266 * Function : disable_logging
268 * Description : Disables logging.
274 *********************************************************************/
275 void disable_logging(void)
279 log_error(LOG_LEVEL_INFO,
280 "No logfile configured. Please enable it before reporting any problems.");
289 /*********************************************************************
291 * Function : init_error_log
293 * Description : Initializes the logging module to log to a file.
295 * XXX: should be renamed.
298 * 1 : prog_name = The program name.
299 * 2 : logfname = The logfile to (re)open.
303 *********************************************************************/
304 void init_error_log(const char *prog_name, const char *logfname)
308 assert(NULL != logfname);
312 if ((logfp != NULL) && (logfp != stderr))
314 log_error(LOG_LEVEL_INFO, "(Re-)Opening logfile \'%s\'", logfname);
317 /* set the designated log file */
318 fp = fopen(logfname, "a");
319 if ((NULL == fp) && (logfp != NULL))
322 * Some platforms (like OS/2) don't allow us to open
323 * the same file twice, therefore we give it another
324 * shot after closing the old file descriptor first.
326 * We don't do it right away because it prevents us
327 * from logging the "can't open logfile" message to
330 * XXX: this is a lame workaround and once the next
331 * release is out we should stop bothering reopening
332 * the logfile unless we have to.
334 * Currently we reopen it every time the config file
335 * has been reloaded, but actually we only have to
336 * reopen it if the file name changed or if the
337 * configuration reload was caused by a SIGHUP.
339 log_error(LOG_LEVEL_INFO, "Failed to reopen logfile: \'%s\'. "
340 "Retrying after closing the old file descriptor first. If that "
341 "doesn't work, Privoxy will exit without being able to log a message.",
347 fp = fopen(logfname, "a");
352 log_error(LOG_LEVEL_FATAL, "init_error_log(): can't open logfile: \'%s\'", logfname);
355 /* set logging to be completely unbuffered */
364 if (daemon_mode && (logfp == stderr))
366 if (dup2(1, 2) == -1)
369 * We only use fatal_error() to clear the pid
370 * file and to exit. Given that stderr has just
371 * been closed, the user will not see the error
374 fatal_error("Failed to reserve fd 2.");
381 show_version(prog_name);
385 } /* init_error_log */
388 /*********************************************************************
390 * Function : get_thread_id
392 * Description : Returns a number that is different for each thread.
394 * XXX: Should be moved elsewhere (miscutil.c?)
398 * Returns : thread_id
400 *********************************************************************/
401 static long get_thread_id(void)
403 long this_thread = 1; /* was: pthread_t this_thread;*/
407 APIRET ulrc; /* XXX: I have no clue what this does */
410 /* FIXME get current thread id */
411 #ifdef FEATURE_PTHREAD
412 this_thread = (long)pthread_self();
415 * Mac OSX (and perhaps other Mach instances) doesn't have a debuggable
416 * value at the first 4 bytes of pthread_self()'s return value, a pthread_t.
417 * pthread_t is supposed to be opaque... but it's fairly random, though, so
418 * we make it mostly presentable.
420 this_thread = abs(this_thread % 1000);
421 #endif /* def __MACH__ */
422 #elif defined(_WIN32)
423 this_thread = GetCurrentThreadId();
424 #elif defined(__OS2__)
425 ulrc = DosGetInfoBlocks(&ptib, NULL);
427 this_thread = ptib -> tib_ptib2 -> tib2_ultid;
428 #endif /* def FEATURE_PTHREAD */
434 /*********************************************************************
436 * Function : get_log_timestamp
438 * Description : Generates the time stamp for the log message prefix.
441 * 1 : buffer = Storage buffer
442 * 2 : buffer_size = Size of storage buffer
444 * Returns : Number of written characters or 0 for error.
446 *********************************************************************/
447 static inline size_t get_log_timestamp(char *buffer, size_t buffer_size)
452 struct timeval tv_now; /* XXX: stupid name */
454 int msecs_length = 0;
456 gettimeofday(&tv_now, NULL);
457 msecs = tv_now.tv_usec / 1000;
460 #ifdef HAVE_LOCALTIME_R
461 tm_now = *localtime_r(&now, &tm_now);
462 #elif defined(MUTEX_LOCKS_AVAILABLE)
463 privoxy_mutex_lock(&localtime_mutex);
464 tm_now = *localtime(&now);
465 privoxy_mutex_unlock(&localtime_mutex);
467 tm_now = *localtime(&now);
470 length = strftime(buffer, buffer_size, "%Y-%m-%d %H:%M:%S", &tm_now);
471 if (length > (size_t)0)
473 msecs_length = snprintf(buffer+length, buffer_size - length, ".%.3ld", msecs);
475 if (msecs_length > 0)
477 length += (size_t)msecs_length;
488 /*********************************************************************
490 * Function : get_clf_timestamp
492 * Description : Generates a Common Log Format time string.
495 * 1 : buffer = Storage buffer
496 * 2 : buffer_size = Size of storage buffer
498 * Returns : Number of written characters or 0 for error.
500 *********************************************************************/
501 static inline size_t get_clf_timestamp(char *buffer, size_t buffer_size)
504 * Complex because not all OSs have tm_gmtoff or
505 * the %z field in strftime()
510 #ifdef HAVE_LOCALTIME_R
519 gmt = *gmtime_r(&now, &gmt);
520 #elif defined(MUTEX_LOCKS_AVAILABLE)
521 privoxy_mutex_lock(&gmtime_mutex);
523 privoxy_mutex_unlock(&gmtime_mutex);
527 #ifdef HAVE_LOCALTIME_R
528 tm_now = localtime_r(&now, &dummy);
529 #elif defined(MUTEX_LOCKS_AVAILABLE)
530 privoxy_mutex_lock(&localtime_mutex);
531 tm_now = localtime(&now);
532 privoxy_mutex_unlock(&localtime_mutex);
534 tm_now = localtime(&now);
536 days = tm_now->tm_yday - gmt.tm_yday;
537 hrs = ((days < -1 ? 24 : 1 < days ? -24 : days * 24) + tm_now->tm_hour - gmt.tm_hour);
538 mins = hrs * 60 + tm_now->tm_min - gmt.tm_min;
540 length = strftime(buffer, buffer_size, "%d/%b/%Y:%H:%M:%S ", tm_now);
542 if (length > (size_t)0)
544 tz_length = snprintf(buffer+length, buffer_size-length,
545 "%+03d%02d", mins / 60, abs(mins) % 60);
549 length += (size_t)tz_length;
560 /*********************************************************************
562 * Function : get_log_level_string
564 * Description : Translates a numerical loglevel into a string.
567 * 1 : loglevel = LOG_LEVEL_FOO
569 * Returns : Log level string.
571 *********************************************************************/
572 static inline const char *get_log_level_string(int loglevel)
574 char *log_level_string = NULL;
576 assert(0 < loglevel);
580 case LOG_LEVEL_ERROR:
581 log_level_string = "Error";
583 case LOG_LEVEL_FATAL:
584 log_level_string = "Fatal error";
587 log_level_string = "Request";
589 case LOG_LEVEL_CONNECT:
590 log_level_string = "Connect";
592 case LOG_LEVEL_WRITING:
593 log_level_string = "Writing";
595 case LOG_LEVEL_RECEIVED:
596 log_level_string = "Received";
598 case LOG_LEVEL_HEADER:
599 log_level_string = "Header";
602 log_level_string = "Info";
604 case LOG_LEVEL_RE_FILTER:
605 log_level_string = "Re-Filter";
607 #ifdef FEATURE_FORCE_LOAD
608 case LOG_LEVEL_FORCE:
609 log_level_string = "Force";
611 #endif /* def FEATURE_FORCE_LOAD */
612 case LOG_LEVEL_REDIRECTS:
613 log_level_string = "Redirect";
615 case LOG_LEVEL_DEANIMATE:
616 log_level_string = "Gif-Deanimate";
618 case LOG_LEVEL_CRUNCH:
619 log_level_string = "Crunch";
622 log_level_string = "CGI";
625 log_level_string = "Unknown log level";
628 assert(NULL != log_level_string);
630 return log_level_string;
634 /*********************************************************************
636 * Function : log_error
638 * Description : This is the error-reporting and logging function.
641 * 1 : loglevel = the type of message to be logged
642 * 2 : fmt = the main string we want logged, printf-like
643 * 3 : ... = arguments to be inserted in fmt (printf-like).
647 *********************************************************************/
648 void log_error(int loglevel, const char *fmt, ...)
652 static char *outbuf_save = NULL;
653 char tempbuf[BUFFER_SIZE];
655 const char * src = fmt;
659 * XXX: Make this a config option,
660 * why else do we allocate instead of using
663 size_t log_buffer_size = BUFFER_SIZE;
665 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
667 * Irrespective of debug setting, a GET/POST/CONNECT makes
668 * the taskbar icon animate. (There is an option to disable
669 * this but checking that is handled inside LogShowActivity()).
671 if ((loglevel == LOG_LEVEL_GPC) || (loglevel == LOG_LEVEL_CRUNCH))
675 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
678 * verify that the loglevel applies to current
679 * settings and that logging is enabled.
680 * Bail out otherwise.
682 if ((0 == (loglevel & debug))
688 if (loglevel == LOG_LEVEL_FATAL)
690 fatal_error("Fatal error. You're not supposed to"
691 "see this message. Please file a bug report.");
696 thread_id = get_thread_id();
697 get_log_timestamp(timestamp, sizeof(timestamp));
699 /* protect the whole function because of the static buffer (outbuf) */
702 if (NULL == outbuf_save)
704 outbuf_save = (char*)zalloc(log_buffer_size + 1); /* +1 for paranoia */
705 if (NULL == outbuf_save)
707 snprintf(tempbuf, sizeof(tempbuf),
708 "%s %08lx Fatal error: Out of memory in log_error().",
709 timestamp, thread_id);
710 fatal_error(tempbuf); /* Exit */
714 outbuf = outbuf_save;
717 * Memsetting the whole buffer to zero (in theory)
718 * makes things easier later on.
720 memset(outbuf, 0, log_buffer_size);
722 /* Add prefix for everything but Common Log Format messages */
723 if (loglevel != LOG_LEVEL_CLF)
725 length = (size_t)snprintf(outbuf, log_buffer_size, "%s %08lx %s: ",
726 timestamp, thread_id, get_log_level_string(loglevel));
729 /* get ready to scan var. args. */
732 /* build formatted message from fmt and var-args */
733 while ((*src) && (length < log_buffer_size-2))
735 const char *sval = NULL; /* %N string */
736 int ival; /* %N string length or an error code */
737 unsigned uval; /* %u value */
738 long lval; /* %l value */
739 unsigned long ulval; /* %ul value */
741 const char *format_string = tempbuf;
746 outbuf[length++] = ch;
748 * XXX: Only necessary on platforms where multiple threads
749 * can write to the buffer at the same time because we
750 * don't support mutexes (OS/2 for example).
752 outbuf[length] = '\0';
755 outbuf[length] = '\0';
763 ival = va_arg(ap, int);
764 snprintf(tempbuf, sizeof(tempbuf), "%d", ival);
767 uval = va_arg(ap, unsigned);
768 snprintf(tempbuf, sizeof(tempbuf), "%u", uval);
771 /* this is a modifier that must be followed by u, lu, or d */
775 lval = va_arg(ap, long);
776 snprintf(tempbuf, sizeof(tempbuf), "%ld", lval);
780 ulval = va_arg(ap, unsigned long);
781 snprintf(tempbuf, sizeof(tempbuf), "%lu", ulval);
783 else if ((ch == 'l') && (*src == 'u'))
785 unsigned long long lluval = va_arg(ap, unsigned long long);
786 snprintf(tempbuf, sizeof(tempbuf), "%llu", lluval);
791 snprintf(tempbuf, sizeof(tempbuf), "Bad format string: \"%s\"", fmt);
792 loglevel = LOG_LEVEL_FATAL;
797 * Note that char paramaters are converted to int, so we need to
798 * pass "int" to va_arg. (See K&R, 2nd ed, section A7.3.2, page 202)
800 tempbuf[0] = (char) va_arg(ap, int);
804 format_string = va_arg(ap, char *);
805 if (format_string == NULL)
807 format_string = "[null]";
812 * Non-standard: Print a counted unterminated string,
813 * replacing unprintable bytes with their hex value.
814 * Takes 2 parameters: int length, const char * string.
816 ival = va_arg(ap, int);
818 sval = va_arg(ap, char *);
819 assert(sval != NULL);
821 while ((ival-- > 0) && (length < log_buffer_size - 6))
823 if (isprint((int)*sval) && (*sval != '\\'))
825 outbuf[length++] = *sval;
826 outbuf[length] = '\0';
830 int ret = snprintf(outbuf + length,
831 log_buffer_size - length - 2, "\\x%.2x", (unsigned char)*sval);
838 * XXX: In case of printable characters at the end of
839 * the %N string, we're not using the whole buffer.
841 format_string = (length < log_buffer_size - 6) ? "" : "[too long]";
844 /* Non-standard: Print error code from errno */
846 ival = WSAGetLastError();
847 format_string = w32_socket_strerr(ival, tempbuf);
852 format_string = os2_socket_strerr(ival, tempbuf);
857 format_string = strerror(ival);
859 #else /* ifndef _WIN32 */
862 format_string = strerror(ival);
863 #else /* ifndef HAVE_STRERROR */
864 format_string = NULL;
865 #endif /* ndef HAVE_STRERROR */
868 snprintf(tempbuf, sizeof(tempbuf), "(errno = %d)", ival);
870 #endif /* ndef _WIN32 */
873 /* Non-standard: Print a Common Log File timestamp */
874 get_clf_timestamp(tempbuf, sizeof(tempbuf));
877 snprintf(tempbuf, sizeof(tempbuf), "Bad format string: \"%s\"", fmt);
878 loglevel = LOG_LEVEL_FATAL;
882 assert(length < log_buffer_size);
883 length += strlcpy(outbuf + length, format_string, log_buffer_size - length);
885 if (length >= log_buffer_size-2)
887 static const char warning[] = "... [too long, truncated]";
889 length = log_buffer_size - sizeof(warning) - 1;
890 length += strlcpy(outbuf + length, warning, log_buffer_size - length);
891 assert(length < log_buffer_size);
897 /* done with var. args */
900 assert(length < log_buffer_size);
901 length += strlcpy(outbuf + length, "\n", log_buffer_size - length);
903 /* Some sanity checks */
904 if ((length >= log_buffer_size)
905 || (outbuf[log_buffer_size-1] != '\0')
906 || (outbuf[log_buffer_size] != '\0')
909 /* Repeat as assertions */
910 assert(length < log_buffer_size);
911 assert(outbuf[log_buffer_size-1] == '\0');
913 * outbuf's real size is log_buffer_size+1,
914 * so while this looks like an off-by-one,
915 * we're only checking our paranoia byte.
917 assert(outbuf[log_buffer_size] == '\0');
919 snprintf(outbuf, log_buffer_size,
920 "%s %08lx Fatal error: log_error()'s sanity checks failed."
921 "length: %d. Exiting.",
922 timestamp, thread_id, (int)length);
923 loglevel = LOG_LEVEL_FATAL;
928 * On Windows this is acceptable in case
929 * we are logging to the GUI window only.
931 assert(NULL != logfp);
934 if (loglevel == LOG_LEVEL_FATAL)
936 fatal_error(outbuf_save);
941 fputs(outbuf_save, logfp);
944 #if defined(_WIN32) && !defined(_WIN_CONSOLE)
945 /* Write to display */
946 LogPutString(outbuf_save);
947 #endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
954 /*********************************************************************
956 * Function : jb_err_to_string
958 * Description : Translates JB_ERR_FOO codes into strings.
960 * XXX: the type of error codes is jb_err
961 * but the typedef'inition is currently not
962 * visible to all files that include errlog.h.
965 * 1 : jb_error = a valid jb_err code
967 * Returns : A string with the jb_err translation
969 *********************************************************************/
970 const char *jb_err_to_string(int jb_error)
975 return "Success, no error";
977 return "Out of memory";
978 case JB_ERR_CGI_PARAMS:
979 return "Missing or corrupt CGI parameters";
981 return "Error opening, reading or writing a file";
983 return "Parse error";
984 case JB_ERR_MODIFIED:
985 return "File has been modified outside of the CGI actions editor.";
986 case JB_ERR_COMPRESS:
987 return "(De)compression failure";
990 return "Unknown error";
993 return "Internal error";
997 /*********************************************************************
999 * Function : w32_socket_strerr
1001 * Description : Translate the return value from WSAGetLastError()
1005 * 1 : errcode = The return value from WSAGetLastError().
1006 * 2 : tmp_buf = A temporary buffer that might be used to
1009 * Returns : String representing the error code. This may be
1010 * a global string constant or a string stored in
1013 *********************************************************************/
1014 static char *w32_socket_strerr(int errcode, char *tmp_buf)
1016 #define TEXT_FOR_ERROR(code,text) \
1017 if (errcode == code) \
1019 return #code " - " text; \
1022 TEXT_FOR_ERROR(WSAEACCES, "Permission denied")
1023 TEXT_FOR_ERROR(WSAEADDRINUSE, "Address already in use.")
1024 TEXT_FOR_ERROR(WSAEADDRNOTAVAIL, "Cannot assign requested address.");
1025 TEXT_FOR_ERROR(WSAEAFNOSUPPORT, "Address family not supported by protocol family.");
1026 TEXT_FOR_ERROR(WSAEALREADY, "Operation already in progress.");
1027 TEXT_FOR_ERROR(WSAECONNABORTED, "Software caused connection abort.");
1028 TEXT_FOR_ERROR(WSAECONNREFUSED, "Connection refused.");
1029 TEXT_FOR_ERROR(WSAECONNRESET, "Connection reset by peer.");
1030 TEXT_FOR_ERROR(WSAEDESTADDRREQ, "Destination address required.");
1031 TEXT_FOR_ERROR(WSAEFAULT, "Bad address.");
1032 TEXT_FOR_ERROR(WSAEHOSTDOWN, "Host is down.");
1033 TEXT_FOR_ERROR(WSAEHOSTUNREACH, "No route to host.");
1034 TEXT_FOR_ERROR(WSAEINPROGRESS, "Operation now in progress.");
1035 TEXT_FOR_ERROR(WSAEINTR, "Interrupted function call.");
1036 TEXT_FOR_ERROR(WSAEINVAL, "Invalid argument.");
1037 TEXT_FOR_ERROR(WSAEISCONN, "Socket is already connected.");
1038 TEXT_FOR_ERROR(WSAEMFILE, "Too many open sockets.");
1039 TEXT_FOR_ERROR(WSAEMSGSIZE, "Message too long.");
1040 TEXT_FOR_ERROR(WSAENETDOWN, "Network is down.");
1041 TEXT_FOR_ERROR(WSAENETRESET, "Network dropped connection on reset.");
1042 TEXT_FOR_ERROR(WSAENETUNREACH, "Network is unreachable.");
1043 TEXT_FOR_ERROR(WSAENOBUFS, "No buffer space available.");
1044 TEXT_FOR_ERROR(WSAENOPROTOOPT, "Bad protocol option.");
1045 TEXT_FOR_ERROR(WSAENOTCONN, "Socket is not connected.");
1046 TEXT_FOR_ERROR(WSAENOTSOCK, "Socket operation on non-socket.");
1047 TEXT_FOR_ERROR(WSAEOPNOTSUPP, "Operation not supported.");
1048 TEXT_FOR_ERROR(WSAEPFNOSUPPORT, "Protocol family not supported.");
1049 TEXT_FOR_ERROR(WSAEPROCLIM, "Too many processes.");
1050 TEXT_FOR_ERROR(WSAEPROTONOSUPPORT, "Protocol not supported.");
1051 TEXT_FOR_ERROR(WSAEPROTOTYPE, "Protocol wrong type for socket.");
1052 TEXT_FOR_ERROR(WSAESHUTDOWN, "Cannot send after socket shutdown.");
1053 TEXT_FOR_ERROR(WSAESOCKTNOSUPPORT, "Socket type not supported.");
1054 TEXT_FOR_ERROR(WSAETIMEDOUT, "Connection timed out.");
1055 TEXT_FOR_ERROR(WSAEWOULDBLOCK, "Resource temporarily unavailable.");
1056 TEXT_FOR_ERROR(WSAHOST_NOT_FOUND, "Host not found.");
1057 TEXT_FOR_ERROR(WSANOTINITIALISED, "Successful WSAStartup not yet performed.");
1058 TEXT_FOR_ERROR(WSANO_DATA, "Valid name, no data record of requested type.");
1059 TEXT_FOR_ERROR(WSANO_RECOVERY, "This is a non-recoverable error.");
1060 TEXT_FOR_ERROR(WSASYSNOTREADY, "Network subsystem is unavailable.");
1061 TEXT_FOR_ERROR(WSATRY_AGAIN, "Non-authoritative host not found.");
1062 TEXT_FOR_ERROR(WSAVERNOTSUPPORTED, "WINSOCK.DLL version out of range.");
1063 TEXT_FOR_ERROR(WSAEDISCON, "Graceful shutdown in progress.");
1065 * The following error codes are documented in the Microsoft WinSock
1066 * reference guide, but don't actually exist.
1068 * TEXT_FOR_ERROR(WSA_INVALID_HANDLE, "Specified event object handle is invalid.");
1069 * TEXT_FOR_ERROR(WSA_INVALID_PARAMETER, "One or more parameters are invalid.");
1070 * TEXT_FOR_ERROR(WSAINVALIDPROCTABLE, "Invalid procedure table from service provider.");
1071 * TEXT_FOR_ERROR(WSAINVALIDPROVIDER, "Invalid service provider version number.");
1072 * TEXT_FOR_ERROR(WSA_IO_PENDING, "Overlapped operations will complete later.");
1073 * TEXT_FOR_ERROR(WSA_IO_INCOMPLETE, "Overlapped I/O event object not in signaled state.");
1074 * TEXT_FOR_ERROR(WSA_NOT_ENOUGH_MEMORY, "Insufficient memory available.");
1075 * TEXT_FOR_ERROR(WSAPROVIDERFAILEDINIT, "Unable to initialize a service provider.");
1076 * TEXT_FOR_ERROR(WSASYSCALLFAILURE, "System call failure.");
1077 * TEXT_FOR_ERROR(WSA_OPERATION_ABORTED, "Overlapped operation aborted.");
1080 sprintf(tmp_buf, "(error number %d)", errcode);
1083 #endif /* def _WIN32 */
1087 /*********************************************************************
1089 * Function : os2_socket_strerr
1091 * Description : Translate the return value from sock_errno()
1095 * 1 : errcode = The return value from sock_errno().
1096 * 2 : tmp_buf = A temporary buffer that might be used to
1099 * Returns : String representing the error code. This may be
1100 * a global string constant or a string stored in
1103 *********************************************************************/
1104 static char *os2_socket_strerr(int errcode, char *tmp_buf)
1106 #define TEXT_FOR_ERROR(code,text) \
1107 if (errcode == code) \
1109 return #code " - " text; \
1112 TEXT_FOR_ERROR(SOCEPERM , "Not owner.")
1113 TEXT_FOR_ERROR(SOCESRCH , "No such process.")
1114 TEXT_FOR_ERROR(SOCEINTR , "Interrupted system call.")
1115 TEXT_FOR_ERROR(SOCENXIO , "No such device or address.")
1116 TEXT_FOR_ERROR(SOCEBADF , "Bad file number.")
1117 TEXT_FOR_ERROR(SOCEACCES , "Permission denied.")
1118 TEXT_FOR_ERROR(SOCEFAULT , "Bad address.")
1119 TEXT_FOR_ERROR(SOCEINVAL , "Invalid argument.")
1120 TEXT_FOR_ERROR(SOCEMFILE , "Too many open files.")
1121 TEXT_FOR_ERROR(SOCEPIPE , "Broken pipe.")
1122 TEXT_FOR_ERROR(SOCEWOULDBLOCK , "Operation would block.")
1123 TEXT_FOR_ERROR(SOCEINPROGRESS , "Operation now in progress.")
1124 TEXT_FOR_ERROR(SOCEALREADY , "Operation already in progress.")
1125 TEXT_FOR_ERROR(SOCENOTSOCK , "Socket operation on non-socket.")
1126 TEXT_FOR_ERROR(SOCEDESTADDRREQ , "Destination address required.")
1127 TEXT_FOR_ERROR(SOCEMSGSIZE , "Message too long.")
1128 TEXT_FOR_ERROR(SOCEPROTOTYPE , "Protocol wrong type for socket.")
1129 TEXT_FOR_ERROR(SOCENOPROTOOPT , "Protocol not available.")
1130 TEXT_FOR_ERROR(SOCEPROTONOSUPPORT, "Protocol not supported.")
1131 TEXT_FOR_ERROR(SOCESOCKTNOSUPPORT, "Socket type not supported.")
1132 TEXT_FOR_ERROR(SOCEOPNOTSUPP , "Operation not supported.")
1133 TEXT_FOR_ERROR(SOCEPFNOSUPPORT , "Protocol family not supported.")
1134 TEXT_FOR_ERROR(SOCEAFNOSUPPORT , "Address family not supported by protocol family.")
1135 TEXT_FOR_ERROR(SOCEADDRINUSE , "Address already in use.")
1136 TEXT_FOR_ERROR(SOCEADDRNOTAVAIL , "Can't assign requested address.")
1137 TEXT_FOR_ERROR(SOCENETDOWN , "Network is down.")
1138 TEXT_FOR_ERROR(SOCENETUNREACH , "Network is unreachable.")
1139 TEXT_FOR_ERROR(SOCENETRESET , "Network dropped connection on reset.")
1140 TEXT_FOR_ERROR(SOCECONNABORTED , "Software caused connection abort.")
1141 TEXT_FOR_ERROR(SOCECONNRESET , "Connection reset by peer.")
1142 TEXT_FOR_ERROR(SOCENOBUFS , "No buffer space available.")
1143 TEXT_FOR_ERROR(SOCEISCONN , "Socket is already connected.")
1144 TEXT_FOR_ERROR(SOCENOTCONN , "Socket is not connected.")
1145 TEXT_FOR_ERROR(SOCESHUTDOWN , "Can't send after socket shutdown.")
1146 TEXT_FOR_ERROR(SOCETOOMANYREFS , "Too many references: can't splice.")
1147 TEXT_FOR_ERROR(SOCETIMEDOUT , "Operation timed out.")
1148 TEXT_FOR_ERROR(SOCECONNREFUSED , "Connection refused.")
1149 TEXT_FOR_ERROR(SOCELOOP , "Too many levels of symbolic links.")
1150 TEXT_FOR_ERROR(SOCENAMETOOLONG , "File name too long.")
1151 TEXT_FOR_ERROR(SOCEHOSTDOWN , "Host is down.")
1152 TEXT_FOR_ERROR(SOCEHOSTUNREACH , "No route to host.")
1153 TEXT_FOR_ERROR(SOCENOTEMPTY , "Directory not empty.")
1154 TEXT_FOR_ERROR(SOCEOS2ERR , "OS/2 Error.")
1156 sprintf(tmp_buf, "(error number %d)", errcode);
1159 #endif /* def __OS2__ */