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/* MiniDLNA media server
* Copyright (C) 2008-2010 NETGEAR, Inc. All Rights Reserved.
*
* This file is part of MiniDLNA.
*
* 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <time.h>
#include "log.h"
static FILE *log_fp = NULL;
static int default_log_level = E_WARN;
int log_level[L_MAX];
char *facility_name[] = {
"general",
"artwork",
"database",
"inotify",
"scanner",
"metadata",
"http",
"ssdp",
"tivo",
0
};
char *level_name[] = {
"off", // E_OFF
"fatal", // E_FATAL
"error", // E_ERROR
"warn", // E_WARN
"info", // E_INFO
"debug", // E_DEBUG
0
};
int
log_init(const char *fname, const char *debug)
{
int i;
FILE *fp;
short int log_level_set[L_MAX];
if (debug)
{
char *rhs, *lhs, *p;
int n;
int level, facility;
memset(&log_level_set, 0, sizeof(log_level_set));
rhs = lhs = (char*) debug;
while (rhs && (rhs = strchr(rhs, '='))) {
rhs++;
p = strchr(rhs, ',');
n = p ? p - rhs : strlen(rhs);
for (level=0; level_name[level]; level++) {
if (!(strncasecmp(level_name[level], rhs, n)))
break;
}
rhs = p;
if (!(level_name[level])) {
// unknown level
continue;
}
do {
if (*lhs==',') lhs++;
p = strpbrk(lhs, ",=");
n = p ? p - lhs : strlen(lhs);
for (facility=0; facility_name[facility]; facility++) {
if (!(strncasecmp(facility_name[facility], lhs, n)))
break;
}
if ((facility_name[facility])) {
log_level[facility] = level;
log_level_set[facility] = 1;
}
lhs = p;
} while (*lhs && *lhs==',');
}
for (i=0; i<L_MAX; i++)
{
if( !log_level_set[i] )
{
log_level[i] = default_log_level;
}
}
}
else {
for (i=0; i<L_MAX; i++)
log_level[i] = default_log_level;
}
if (!fname) // use default i.e. stdout
return 0;
if (!(fp = fopen(fname, "a")))
return 1;
log_fp = fp;
return 0;
}
void
log_err(int level, enum _log_facility facility, char *fname, int lineno, char *fmt, ...)
{
//char errbuf[1024];
char * errbuf;
va_list ap;
time_t t;
struct tm *tm;
if (level && level>log_level[facility] && level>E_FATAL)
return;
if (!log_fp)
log_fp = stdout;
// user log
va_start(ap, fmt);
//vsnprintf(errbuf, sizeof(errbuf), fmt, ap);
if (vasprintf(&errbuf, fmt, ap) == -1)
{
va_end(ap);
return;
}
va_end(ap);
// timestamp
t = time(NULL);
tm = localtime(&t);
fprintf(log_fp, "[%04d/%02d/%02d %02d:%02d:%02d] ",
tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
if (level)
fprintf(log_fp, "%s:%d: %s: %s", fname, lineno, level_name[level], errbuf);
else
fprintf(log_fp, "%s:%d: %s", fname, lineno, errbuf);
fflush(log_fp);
free(errbuf);
if (level==E_FATAL)
exit(-1);
return;
}