135 lines
3 KiB
C
135 lines
3 KiB
C
/*
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logger.c -- logging code
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Copyright (C) 2004-2006 Guus Sliepen <guus@tinc-vpn.org>
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2004-2005 Ivo Timmermans
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id: logger.c 1452 2006-04-26 13:52:58Z guus $
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*/
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#include "system.h"
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#include "conf.h"
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#include "logger.h"
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debug_t debug_level = DEBUG_NOTHING;
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static logmode_t logmode = LOGMODE_STDERR;
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static pid_t logpid;
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extern char *logfilename;
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static FILE *logfile = NULL;
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#ifdef HAVE_MINGW
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static HANDLE loghandle = NULL;
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#endif
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static const char *logident = NULL;
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void openlogger(const char *ident, logmode_t mode) {
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logident = ident;
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logmode = mode;
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switch(mode) {
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case LOGMODE_STDERR:
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logpid = getpid();
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break;
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case LOGMODE_FILE:
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logpid = getpid();
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logfile = fopen(logfilename, "a");
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if(!logfile)
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logmode = LOGMODE_NULL;
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break;
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case LOGMODE_SYSLOG:
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#ifdef HAVE_MINGW
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loghandle = RegisterEventSource(NULL, logident);
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if(!loghandle)
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logmode = LOGMODE_NULL;
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break;
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#else
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#ifdef HAVE_SYSLOG_H
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openlog(logident, LOG_CONS | LOG_PID, LOG_DAEMON);
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break;
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#endif
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#endif
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case LOGMODE_NULL:
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break;
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}
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}
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void logger(int priority, const char *format, ...) {
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va_list ap;
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va_start(ap, format);
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switch(logmode) {
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case LOGMODE_STDERR:
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vfprintf(stderr, format, ap);
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fprintf(stderr, "\n");
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fflush(stderr);
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break;
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case LOGMODE_FILE:
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fprintf(logfile, "%ld %s[%ld]: ", time(NULL), logident, (long)logpid);
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vfprintf(logfile, format, ap);
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fprintf(logfile, "\n");
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fflush(logfile);
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break;
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case LOGMODE_SYSLOG:
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#ifdef HAVE_MINGW
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{
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char message[4096];
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char *messages[] = {message};
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vsnprintf(message, sizeof(message), format, ap);
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ReportEvent(loghandle, priority, 0, 0, NULL, 1, 0, messages, NULL);
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}
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#else
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#ifdef HAVE_SYSLOG_H
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#ifdef HAVE_VSYSLOG
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vsyslog(priority, format, ap);
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#else
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{
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char message[4096];
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vsnprintf(message, sizeof(message), format, ap);
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syslog(priority, "%s", message);
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}
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#endif
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break;
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#endif
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#endif
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case LOGMODE_NULL:
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break;
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}
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va_end(ap);
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}
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void closelogger(void) {
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switch(logmode) {
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case LOGMODE_FILE:
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fclose(logfile);
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break;
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case LOGMODE_SYSLOG:
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#ifdef HAVE_MINGW
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DeregisterEventSource(loghandle);
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break;
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#else
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#ifdef HAVE_SYSLOG_H
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closelog();
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break;
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#endif
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#endif
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case LOGMODE_NULL:
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case LOGMODE_STDERR:
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break;
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break;
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}
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}
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