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/*
* dhcpcd - DHCP client daemon
* Copyright 2006-2008 Roy Marples <roy@marples.name>
* All rights reserved
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#define SYSLOG_NAMES
#define COM_CH "/var/tmp/com.socket"
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include "common.h"
#include "logger.h"
#include "logwriter.h"
static int loglevel = LOG_WARNING;
static char logprefix[12] = { 0 };
int logtolevel(const char *priority) {
CODE *c;
if (isdigit ((int) *priority))
return (atoi(priority));
for (c = prioritynames; c->c_name; c++)
if (!strcasecmp(priority, c->c_name))
return (c->c_val);
return (-1);
}
static const char *leveltolog(int level) {
CODE *c;
for (c = prioritynames; c->c_name; c++)
if (c->c_val == level)
return (c->c_name);
return (NULL);
}
void setloglevel(int level) {
loglevel = level;
}
void setlogprefix(const char *prefix) {
snprintf(logprefix, sizeof(logprefix), "%s", prefix);
}
void logger(int level, const char *fmt, ...) {
va_list p;
va_list p2;
FILE *f = stderr;
va_start (p, fmt);
va_copy (p2, p);
if (level <= LOG_ERR || level <= loglevel) {
/* new function by Niklas Goby
* send the log message also to our Qt programm.
* implemented in logwriter.c
* */
logLoggerToQt(level, fmt, p);
if (level == LOG_DEBUG || level == LOG_INFO)
f = stdout;
fprintf(f, "%s, %s", leveltolog(level), logprefix);
vfprintf(f, fmt, p);
fputc('\n', f);
/* stdout, stderr may be re-directed to some kind of buffer.
* So we always flush to ensure it's written. */
fflush(f);
}
if (level < LOG_DEBUG || level <= loglevel) {
size_t len = strlen(logprefix);
size_t fmt2len = strlen(fmt) + len + 1;
char *fmt2 = malloc(sizeof(char) * fmt2len);
char *pf = fmt2;
if (fmt2) {
memcpy(pf, logprefix, len);
pf += len;
strlcpy(pf, fmt, fmt2len - len);
vsyslog(level, fmt2, p2);
free(fmt2);
} else {
vsyslog(level, fmt, p2);
syslog(LOG_ERR, "logger: memory exhausted");
exit(EXIT_FAILURE);
}
}
va_end (p2);
va_end (p);
}
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