[057529]: log.c  Maximize  Restore  History

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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 "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <time.h>
#include "upnpglobalvars.h"
#include "log.h"
static FILE *log_fp = NULL;
static const int _default_log_level = E_WARN;
int log_level[L_MAX];
const char *facility_name[] = {
"general",
"artwork",
"database",
"inotify",
"scanner",
"metadata",
"http",
"ssdp",
"tivo",
0
};
const char *level_name[] = {
"off", // E_OFF
"fatal", // E_FATAL
"error", // E_ERROR
"warn", // E_WARN
"info", // E_INFO
"debug", // E_DEBUG
"maxdebug", // E_MAXDEBUG
0
};
void
log_close(void)
{
if (log_fp)
fclose(log_fp);
}
int find_matching_name(const char* str, const char* names[]) {
if (str == NULL) return -1;
const char* start = strpbrk(str, ",=");
int level, c = (start != NULL) ? start - str : strlen(str);
for (level = 0; names[level] != 0; level++) {
if (!(strncasecmp(names[level], str, c)))
return level;
}
return -1;
}
int
log_init(const char *fname, const char *debug)
{
int i;
FILE *fp;
int level = find_matching_name(debug, level_name);
int default_log_level = (level == -1) ? _default_log_level : level;
for (i=0; i<L_MAX; i++)
log_level[i] = default_log_level;
if (debug)
{
const char *rhs, *lhs, *nlhs;
int level, facility;
rhs = nlhs = debug;
while (rhs && (rhs = strchr(rhs, '='))) {
rhs++;
level = find_matching_name(rhs, level_name);
if (level == -1) {
DPRINTF(E_WARN, L_GENERAL, "unknown level in debug string: %s", debug);
continue;
}
lhs = nlhs;
rhs = nlhs = strchr(rhs, ',');
do {
if (*lhs==',') lhs++;
facility = find_matching_name(lhs, facility_name);
if (facility == -1) {
DPRINTF(E_WARN, L_GENERAL, "unknown debug facility in debug string: %s", debug);
} else {
log_level[facility] = level;
}
lhs = strpbrk(lhs, ",=");
} while (*lhs && *lhs==',');
}
}
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, ...)
{
va_list ap;
if (level && level>log_level[facility] && level>E_FATAL)
return;
if (!log_fp)
log_fp = stdout;
// timestamp
if (!GETFLAG(SYSTEMD_MASK))
{
time_t t;
struct tm *tm;
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: ", fname, lineno, level_name[level]);
else
fprintf(log_fp, "%s:%d: ", fname, lineno);
// user log
va_start(ap, fmt);
if (vfprintf(log_fp, fmt, ap) == -1)
{
va_end(ap);
return;
}
va_end(ap);
fflush(log_fp);
if (level==E_FATAL)
exit(-1);
return;
}

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