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/*
* log.c - logging functionality
*
* Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
* All rights reserved.
*
* 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* 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, see <http://www.gnu.org/licenses/>.
*
* Author(s): Erik Troan <ewt@redhat.com>
* Matt Wilson <msw@redhat.com>
* Michael Fulbright <msf@redhat.com>
* Jeremy Katz <katzj@redhat.com>
*/
#include <fcntl.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <sys/time.h>
#include <syslog.h>
#include "log.h"
static FILE * tty_logfile = NULL;
static FILE * file_logfile = NULL;
static int minLevel = INFO;
static const char * syslog_facility = "loader";
/* maps our loglevel to syslog loglevel */
static int mapLogLevel(int level)
{
switch (level) {
case DEBUGLVL:
return LOG_DEBUG;
case INFO:
return LOG_INFO;
case WARNING:
return LOG_WARNING;
case CRITICAL:
return LOG_CRIT;
case ERROR:
default:
/* if someone called us with an invalid level value, log it as an error
too. */
return LOG_ERR;
}
}
static void printLogHeader(int level, FILE *outfile) {
struct timeval current_time;
struct tm *t;
int msecs;
gettimeofday(¤t_time, NULL);
t = gmtime(¤t_time.tv_sec);
msecs = current_time.tv_usec / 1000;
switch (level) {
case DEBUGLVL:
fprintf (outfile, "%02d:%02d:%02d,%03d DEBUG %s: ", t->tm_hour,
t->tm_min, t->tm_sec, msecs, syslog_facility);
break;
case INFO:
fprintf (outfile, "%02d:%02d:%02d,%03d INFO %s: ", t->tm_hour,
t->tm_min, t->tm_sec, msecs, syslog_facility);
break;
case WARNING:
fprintf (outfile, "%02d:%02d:%02d,%03d WARNING %s: ", t->tm_hour,
t->tm_min, t->tm_sec, msecs, syslog_facility);
break;
case ERROR:
fprintf (outfile, "%02d:%02d:%02d,%03d ERROR %s: ", t->tm_hour,
t->tm_min, t->tm_sec, msecs, syslog_facility);
break;
case CRITICAL:
fprintf (outfile, "%02d:%02d:%02d,%03d CRITICAL %s: ", t->tm_hour,
t->tm_min, t->tm_sec, msecs, syslog_facility);
break;
}
}
void logMessageV(int level, const char * s, va_list ap) {
va_list apc;
/* Log everything into syslog */
va_copy(apc, ap);
vsyslog(mapLogLevel(level), s, apc);
va_end(apc);
/* Only log to the screen things that are above the minimum level. */
if (tty_logfile && level >= minLevel) {
printLogHeader(level, tty_logfile);
va_copy(apc, ap);
vfprintf(tty_logfile, s, apc);
va_end(apc);
fprintf(tty_logfile, "\n");
fflush(tty_logfile);
}
/* But log everything to the file. */
if (file_logfile) {
printLogHeader(level, file_logfile);
va_copy(apc, ap);
vfprintf(file_logfile, s, apc);
va_end(apc);
fprintf(file_logfile, "\n");
fflush(file_logfile);
}
}
void logMessage(int level, const char * s, ...) {
va_list args;
va_start(args, s);
logMessageV(level, s, args);
va_end(args);
}
int tty_logfd = -1;
int file_logfd = -1;
void openLog() {
/* init syslog logging (so loader messages can also be forwarded to a remote
syslog daemon */
openlog(syslog_facility, 0, LOG_LOCAL1);
int flags;
tty_logfile = fopen("/dev/tty3", "w");
file_logfile = fopen("/tmp/anaconda.log", "w");
if (tty_logfile) {
tty_logfd = fileno(tty_logfile);
flags = fcntl(tty_logfd, F_GETFD, 0) | FD_CLOEXEC;
fcntl(tty_logfd, F_SETFD, flags);
}
if (file_logfile) {
file_logfd = fileno(file_logfile);
flags = fcntl(file_logfd, F_GETFD, 0) | FD_CLOEXEC;
fcntl(file_logfd, F_SETFD, flags);
}
}
void closeLog(void) {
if (tty_logfile)
fclose(tty_logfile);
if (file_logfile)
fclose(file_logfile);
/* close syslog logger */
closelog();
}
/* set the level. higher means you see more verbosity */
void setLogLevel(int level) {
minLevel = level;
}
int getLogLevel(void) {
return minLevel;
}
/* vim:set shiftwidth=4 softtabstop=4: */
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