/*
logger.c -- logging code
- Copyright (C) 2004-2005 Guus Sliepen <guus@tinc-vpn.org>
- 2004-2005 Ivo Timmermans <ivo@tinc-vpn.org>
+ Copyright (C) 2004-2015 Guus Sliepen <guus@tinc-vpn.org>
+ 2004-2005 Ivo Timmermans
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- $Id$
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "system.h"
#include "conf.h"
+#include "meta.h"
+#include "names.h"
#include "logger.h"
+#include "connection.h"
+#include "control_common.h"
+#include "process.h"
+#include "sptps.h"
debug_t debug_level = DEBUG_NOTHING;
static logmode_t logmode = LOGMODE_STDERR;
static pid_t logpid;
-extern char *logfilename;
static FILE *logfile = NULL;
#ifdef HAVE_MINGW
static HANDLE loghandle = NULL;
#endif
static const char *logident = NULL;
+bool logcontrol = false;
+int umbilical = 0;
+
+static void real_logger(int level, int priority, const char *message) {
+ char timestr[32] = "";
+ static bool suppress = false;
+
+ // Bail out early if there is nothing to do.
+ if(suppress)
+ return;
+
+ if(!logcontrol && (level > debug_level || logmode == LOGMODE_NULL))
+ return;
+
+ if(level <= debug_level) {
+ switch(logmode) {
+ case LOGMODE_STDERR:
+ fprintf(stderr, "%s\n", message);
+ fflush(stderr);
+ break;
+ case LOGMODE_FILE:
+ if(!now.tv_sec)
+ gettimeofday(&now, NULL);
+ time_t now_sec = now.tv_sec;
+ strftime(timestr, sizeof timestr, "%Y-%m-%d %H:%M:%S", localtime(&now_sec));
+ fprintf(logfile, "%s %s[%ld]: %s\n", timestr, logident, (long)logpid, message);
+ fflush(logfile);
+ break;
+ case LOGMODE_SYSLOG:
+#ifdef HAVE_MINGW
+ {
+ const char *messages[] = {message};
+ ReportEvent(loghandle, priority, 0, 0, NULL, 1, 0, messages, NULL);
+ }
+#else
+#ifdef HAVE_SYSLOG_H
+ syslog(priority, "%s", message);
+#endif
+#endif
+ break;
+ case LOGMODE_NULL:
+ break;
+ }
+
+ if(umbilical && do_detach) {
+ write(umbilical, message, strlen(message));
+ write(umbilical, "\n", 1);
+ }
+ }
+
+ if(logcontrol) {
+ suppress = true;
+ logcontrol = false;
+ for list_each(connection_t, c, connection_list) {
+ if(!c->status.log)
+ continue;
+ logcontrol = true;
+ if(level > (c->outcompression >= 0 ? c->outcompression : debug_level))
+ continue;
+ int len = strlen(message);
+ if(send_request(c, "%d %d %d", CONTROL, REQ_LOG, len))
+ send_meta(c, message, len);
+ }
+ suppress = false;
+ }
+}
+
+void logger(int level, int priority, const char *format, ...) {
+ va_list ap;
+ char message[1024] = "";
+
+ va_start(ap, format);
+ int len = vsnprintf(message, sizeof message, format, ap);
+ va_end(ap);
+
+ if(len > 0 && len < sizeof message && message[len - 1] == '\n')
+ message[len - 1] = 0;
+
+ real_logger(level, priority, message);
+}
+
+static void sptps_logger(sptps_t *s, int s_errno, const char *format, va_list ap) {
+ char message[1024] = "";
+ size_t msglen = sizeof message;
+
+ int len = vsnprintf(message, msglen, format, ap);
+ if(len > 0 && len < sizeof message) {
+ if(message[len - 1] == '\n')
+ message[--len] = 0;
+
+ // WARNING: s->handle can point to a connection_t or a node_t,
+ // but both types have the name and hostname fields at the same offsets.
+ connection_t *c = s->handle;
+ if(c)
+ snprintf(message + len, sizeof message - len, " from %s (%s)", c->name, c->hostname);
+ }
+
+ real_logger(DEBUG_ALWAYS, LOG_ERR, message);
+}
void openlogger(const char *ident, logmode_t mode) {
logident = ident;
logmode = mode;
-
+
switch(mode) {
case LOGMODE_STDERR:
logpid = getpid();
case LOGMODE_FILE:
logpid = getpid();
logfile = fopen(logfilename, "a");
- if(!logfile)
+ if(!logfile) {
+ fprintf(stderr, "Could not open log file %s: %s\n", logfilename, strerror(errno));
logmode = LOGMODE_NULL;
+ }
break;
case LOGMODE_SYSLOG:
#ifdef HAVE_MINGW
loghandle = RegisterEventSource(NULL, logident);
- if(!loghandle)
+ if(!loghandle) {
+ fprintf(stderr, "Could not open log handle!");
logmode = LOGMODE_NULL;
+ }
break;
#else
#ifdef HAVE_SYSLOG_H
case LOGMODE_NULL:
break;
}
-}
-void logger(int priority, const char *format, ...) {
- va_list ap;
+ if(logmode != LOGMODE_NULL)
+ sptps_log = sptps_logger;
+ else
+ sptps_log = sptps_log_quiet;
+}
- va_start(ap, format);
+void reopenlogger() {
+ if(logmode != LOGMODE_FILE)
+ return;
- switch(logmode) {
- case LOGMODE_STDERR:
- vfprintf(stderr, format, ap);
- fprintf(stderr, "\n");
- fflush(stderr);
- break;
- case LOGMODE_FILE:
- fprintf(logfile, "%ld %s[%ld]: ", time(NULL), logident, (long)logpid);
- vfprintf(logfile, format, ap);
- fprintf(logfile, "\n");
- fflush(logfile);
- break;
- case LOGMODE_SYSLOG:
-#ifdef HAVE_MINGW
- {
- char message[4096];
- char *messages[] = {message};
- vsnprintf(message, sizeof(message), format, ap);
- ReportEvent(loghandle, priority, 0, 0, NULL, 1, 0, messages, NULL);
- }
-#else
-#ifdef HAVE_SYSLOG_H
-#ifdef HAVE_VSYSLOG
- vsyslog(priority, format, ap);
-#else
- {
- char message[4096];
- vsnprintf(message, sizeof(message), format, ap);
- syslog(priority, "%s", message);
- }
-#endif
- break;
-#endif
-#endif
- case LOGMODE_NULL:
- break;
+ fflush(logfile);
+ FILE *newfile = fopen(logfilename, "a");
+ if(!newfile) {
+ logger(DEBUG_ALWAYS, LOG_ERR, "Unable to reopen log file %s: %s", logfilename, strerror(errno));
+ return;
}
-
- va_end(ap);
+ fclose(logfile);
+ logfile = newfile;
}
+
void closelogger(void) {
switch(logmode) {
case LOGMODE_FILE:
case LOGMODE_NULL:
case LOGMODE_STDERR:
break;
- break;
}
}
projects / tinc / blobdiff