-const char errlog_rcs[] = "$Id: errlog.c,v 1.39 2002/04/03 17:15:27 gliptak Exp $";
+const char errlog_rcs[] = "$Id: errlog.c,v 1.46 2006/11/13 19:05:51 fabiankeil Exp $";
/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/errlog.c,v $
*
* Revisions :
* $Log: errlog.c,v $
+ * Revision 1.46 2006/11/13 19:05:51 fabiankeil
+ * Make pthread mutex locking more generic. Instead of
+ * checking for OSX and OpenBSD, check for FEATURE_PTHREAD
+ * and use mutex locking unless there is an _r function
+ * available. Better safe than sorry.
+ *
+ * Fixes "./configure --disable-pthread" and should result
+ * in less threading-related problems on pthread-using platforms,
+ * but it still doesn't fix BR#1122404.
+ *
+ * Revision 1.45 2006/08/21 11:15:54 david__schmidt
+ * MS Visual C++ build updates
+ *
+ * Revision 1.44 2006/08/18 16:03:16 david__schmidt
+ * Tweak for OS/2 build happiness.
+ *
+ * Revision 1.43 2006/08/03 02:46:41 david__schmidt
+ * Incorporate Fabian Keil's patch work:
+ * http://www.fabiankeil.de/sourcecode/privoxy/
+ *
+ * Revision 1.42 2006/07/18 14:48:46 david__schmidt
+ * Reorganizing the repository: swapping out what was HEAD (the old 3.1 branch)
+ * with what was really the latest development (the v_3_0_branch branch)
+ *
+ * Revision 1.40.2.4 2005/04/03 20:10:50 david__schmidt
+ * Thanks to Jindrich Makovicka for a race condition fix for the log
+ * file. The race condition remains for non-pthread implementations.
+ * Reference patch #1175720.
+ *
+ * Revision 1.40.2.3 2003/03/07 03:41:04 david__schmidt
+ * Wrapping all *_r functions (the non-_r versions of them) with mutex
+ * semaphores for OSX. Hopefully this will take care of all of those pesky
+ * crash reports.
+ *
+ * Revision 1.40.2.2 2002/09/28 00:30:57 david__schmidt
+ * Update error logging to give sane values for thread IDs on Mach kernels.
+ * It's still a hack, but at least it looks farily normal. We print the
+ * absolute value of the first 4 bytes of the pthread_t modded with 1000.
+ *
+ * Revision 1.40.2.1 2002/09/25 12:47:42 oes
+ * Make log_error safe against NULL string arguments
+ *
+ * Revision 1.40 2002/05/22 01:27:27 david__schmidt
+ *
+ * Add os2_socket_strerr mirroring w32_socket_strerr.
+ *
* Revision 1.39 2002/04/03 17:15:27 gliptak
* zero padding thread ids in log
*
#include <errno.h>
#include <assert.h>
-#ifdef FEATURE_PTHREAD
-#include <pthread.h>
-#endif /* def FEATURE_PTHREAD */
#ifdef _WIN32
#ifndef STRICT
#include "w32log.h"
#endif /* ndef _WIN_CONSOLE */
#endif /* def _WIN32 */
+#ifdef _MSC_VER
+#define inline __inline
+#endif /* def _MSC_VER */
#ifdef __OS2__
#include <sys/socket.h> /* For sock_errno */
static FILE *logfp = NULL;
/* logging detail level. */
-static int debug = (LOG_LEVEL_FATAL | LOG_LEVEL_ERROR | LOG_LEVEL_INFO);
+int debug = (LOG_LEVEL_FATAL | LOG_LEVEL_ERROR | LOG_LEVEL_INFO);
/* static functions */
static void fatal_error(const char * error_message);
static char *os2_socket_strerr(int errcode, char *tmp_buf);
#endif
+#ifdef FEATURE_PTHREAD
+static inline void lock_logfile()
+{
+ pthread_mutex_lock(&log_mutex);
+}
+static inline void unlock_logfile()
+{
+ pthread_mutex_unlock(&log_mutex);
+}
+static inline void lock_loginit()
+{
+ pthread_mutex_lock(&log_init_mutex);
+}
+static inline void unlock_loginit()
+{
+ pthread_mutex_unlock(&log_init_mutex);
+}
+#else /* ! FEATURE_PTHREAD */
+/*
+ * FIXME we need a cross-platform locking mechanism.
+ * The locking/unlocking functions below should be
+ * fleshed out for non-pthread implementations.
+ */
+static inline void lock_logfile() {}
+static inline void unlock_logfile() {}
+static inline void lock_loginit() {}
+static inline void unlock_loginit() {}
+#endif
+
/*********************************************************************
*
* Function : fatal_error
#endif /* defined(_WIN32) && !defined(_WIN_CONSOLE) */
#if defined(unix)
- unlink(pidfile);
+ if(pidfile)
+ {
+ unlink(pidfile);
+ }
#endif /* unix */
exit(1);
{
FILE *fp;
- /* FIXME RACE HAZARD: should start critical section error_log_use here */
+ lock_loginit();
/* set the logging detail level */
debug = debuglevel | LOG_LEVEL_MINIMUM;
if ((logfp != NULL) && (logfp != stderr))
{
log_error(LOG_LEVEL_INFO, "(Re-)Open logfile %s", logfname ? logfname : "none");
+ lock_logfile();
fclose(logfp);
+ } else {
+ lock_logfile();
}
logfp = stderr;
+ unlock_logfile();
/* set the designated log file */
if( logfname )
/* set logging to be completely unbuffered */
setbuf(fp, NULL);
+ lock_logfile();
logfp = fp;
+ unlock_logfile();
}
log_error(LOG_LEVEL_INFO, "Privoxy version " VERSION);
log_error(LOG_LEVEL_INFO, "Program name: %s", prog_name);
}
- /* FIXME RACE HAZARD: should end critical section error_log_use here */
+ unlock_loginit();
} /* init_error_log */
return;
}
+ /* protect the whole function because of the static buffer (outbuf) */
+ lock_logfile();
+
/* FIXME get current thread id */
#ifdef FEATURE_PTHREAD
this_thread = (long)pthread_self();
+#ifdef __MACH__
+ /*
+ * Mac OSX (and perhaps other Mach instances) doesn't have a debuggable
+ * value at the first 4 bytes of pthread_self()'s return value, a pthread_t.
+ * pthread_t is supposed to be opaque... but it's fairly random, though, so
+ * we make it mostly presentable.
+ */
+ this_thread = abs(this_thread % 1000);
+#endif /* def __MACH__ */
#elif defined(_WIN32)
this_thread = GetCurrentThreadId();
#elif defined(__OS2__)
time (&now);
#ifdef HAVE_LOCALTIME_R
tm_now = *localtime_r(&now, &tm_now);
+#elif FEATURE_PTHREAD
+ pthread_mutex_lock(&localtime_mutex);
+ tm_now = *localtime (&now);
+ pthread_mutex_unlock(&localtime_mutex);
#else
tm_now = *localtime (&now);
#endif
switch (loglevel)
{
case LOG_LEVEL_ERROR:
- outc = sprintf(outbuf, "Privoxy(%05ld) Error: ", this_thread);
+ outc = sprintf(outbuf, "Privoxy(%08lx) Error: ", this_thread);
break;
case LOG_LEVEL_FATAL:
- outc = sprintf(outbuf, "Privoxy(%05ld) Fatal error: ", this_thread);
+ outc = sprintf(outbuf, "Privoxy(%08lx) Fatal error: ", this_thread);
break;
case LOG_LEVEL_GPC:
- outc = sprintf(outbuf, "Privoxy(%05ld) Request: ", this_thread);
+ outc = sprintf(outbuf, "Privoxy(%08lx) Request: ", this_thread);
break;
case LOG_LEVEL_CONNECT:
- outc = sprintf(outbuf, "Privoxy(%05ld) Connect: ", this_thread);
+ outc = sprintf(outbuf, "Privoxy(%08lx) Connect: ", this_thread);
break;
case LOG_LEVEL_LOG:
- outc = sprintf(outbuf, "Privoxy(%05ld) Writing: ", this_thread);
+ outc = sprintf(outbuf, "Privoxy(%08lx) Writing: ", this_thread);
break;
case LOG_LEVEL_HEADER:
- outc = sprintf(outbuf, "Privoxy(%05ld) Header: ", this_thread);
+ outc = sprintf(outbuf, "Privoxy(%08lx) Header: ", this_thread);
break;
case LOG_LEVEL_INFO:
- outc = sprintf(outbuf, "Privoxy(%05ld) Info: ", this_thread);
+ outc = sprintf(outbuf, "Privoxy(%08lx) Info: ", this_thread);
break;
case LOG_LEVEL_RE_FILTER:
- outc = sprintf(outbuf, "Privoxy(%05ld) Re-Filter: ", this_thread);
+ outc = sprintf(outbuf, "Privoxy(%08lx) Re-Filter: ", this_thread);
break;
#ifdef FEATURE_FORCE_LOAD
case LOG_LEVEL_FORCE:
- outc = sprintf(outbuf, "Privoxy(%05ld) Force: ", this_thread);
+ outc = sprintf(outbuf, "Privoxy(%08lx) Force: ", this_thread);
break;
#endif /* def FEATURE_FORCE_LOAD */
#ifdef FEATURE_FAST_REDIRECTS
case LOG_LEVEL_REDIRECTS:
- outc = sprintf(outbuf, "Privoxy(%05ld) Redirect: ", this_thread);
+ outc = sprintf(outbuf, "Privoxy(%08lx) Redirect: ", this_thread);
break;
#endif /* def FEATURE_FAST_REDIRECTS */
case LOG_LEVEL_DEANIMATE:
- outc = sprintf(outbuf, "Privoxy(%05ld) Gif-Deanimate: ", this_thread);
+ outc = sprintf(outbuf, "Privoxy(%08lx) Gif-Deanimate: ", this_thread);
break;
case LOG_LEVEL_CLF:
outbuf = outbuf_save;
break;
#ifdef FEATURE_KILL_POPUPS
case LOG_LEVEL_POPUPS:
- outc = sprintf(outbuf, "Privoxy(%05ld) Kill-Popups: ", this_thread);
+ outc = sprintf(outbuf, "Privoxy(%08lx) Kill-Popups: ", this_thread);
break;
#endif /* def FEATURE_KILL_POPUPS */
case LOG_LEVEL_CGI:
- outc = sprintf(outbuf, "Privoxy(%05ld) CGI: ", this_thread);
+ outc = sprintf(outbuf, "Privoxy(%08lx) CGI: ", this_thread);
break;
default:
- outc = sprintf(outbuf, "Privoxy(%05ld) UNKNOWN LOG TYPE(%d): ", this_thread, loglevel);
+ outc = sprintf(outbuf, "Privoxy(%08lx) UNKNOWN LOG TYPE(%d): ", this_thread, loglevel);
break;
}
else
{
/* Error */
- sprintf(outbuf, "Privoxy(%ld) Error: log_error(): Bad format string:\n"
+ sprintf(outbuf, "Privoxy(%08lx) Error: log_error(): Bad format string:\n"
"Format = \"%s\"\n"
"Exiting.", this_thread, fmt);
- /* FIXME RACE HAZARD: should start critical section error_log_use here */
if( !logfp )
{
logfp = stderr;
}
fputs(outbuf, logfp);
- /* FIXME RACE HAZARD: should end critical section error_log_use here */
fatal_error(outbuf);
/* Never get here */
break;
break;
case 's':
sval = va_arg( ap, char * );
+ if (sval == NULL)
+ {
+ sval = "[null]";
+ }
oldoutc = outc;
outc += strlen(sval);
if (outc < BUFFER_SIZE-1)
*/
ival = va_arg( ap, int );
sval = va_arg( ap, char * );
+ if (sval == NULL)
+ {
+ sval = "[null]";
+ }
if (ival < 0)
{
ival = 0;
time (&now);
#ifdef HAVE_GMTIME_R
gmt = *gmtime_r(&now, &gmt);
+#elif FEATURE_PTHREAD
+ pthread_mutex_lock(&gmtime_mutex);
+ gmt = *gmtime(&now);
+ pthread_mutex_unlock(&gmtime_mutex);
#else
gmt = *gmtime(&now);
#endif
#ifdef HAVE_LOCALTIME_R
tm_now = localtime_r(&now, &dummy);
+#elif FEATURE_PTHREAD
+ pthread_mutex_lock(&localtime_mutex);
+ tm_now = localtime (&now);
+ pthread_mutex_unlock(&localtime_mutex);
#else
tm_now = localtime (&now);
#endif
}
break;
default:
- sprintf(outbuf, "Privoxy(%ld) Error: log_error(): Bad format string:\n"
+ sprintf(outbuf, "Privoxy(%08lx) Error: log_error(): Bad format string:\n"
"Format = \"%s\"\n"
"Exiting.", this_thread, fmt);
- /* FIXME RACE HAZARD: should start critical section error_log_use here */
if( !logfp )
{
logfp = stderr;
}
fputs(outbuf_save, logfp);
- /* FIXME RACE HAZARD: should end critical section error_log_use here */
+ unlock_logfile();
fatal_error(outbuf_save);
/* Never get here */
break;
outbuf[outc] = '\0';
}
- /* FIXME RACE HAZARD: should start critical section error_log_use here */
-
/* deal with glibc stupidity - it won't let you initialize logfp */
if( !logfp )
{
/* Never get here */
}
- /* FIXME RACE HAZARD: should end critical section error_log_use here */
+ unlock_logfile();
#if defined(_WIN32) && !defined(_WIN_CONSOLE)
/* Write to display */
projects / privoxy.git / blobdiff