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/*
* Copyright (c) 2015, 2016 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "syslog-libc.h"
#include <config.h>
#include <string.h>
#include <syslog.h>
#include <unistd.h>
#include "compiler.h"
#include "openvswitch/dynamic-string.h"
#include "socket-util.h"
#include "syslog-provider.h"
#include "util.h"
static void syslog_libc_open(struct syslogger *this, int facility);
static void syslog_libc_log(struct syslogger *this, int pri, const char *msg);
static struct syslog_class syslog_libc_class = {
syslog_libc_open,
syslog_libc_log,
};
struct syslog_libc {
struct syslogger parent;
};
/* This function creates object that delegate all logging to libc's
* syslog implementation. */
struct syslogger *
syslog_libc_create(void)
{
struct syslog_libc *this = xmalloc(sizeof *this);
this->parent.class = &syslog_libc_class;
this->parent.prefix = "<%B> %D{%h %e %T} %E %A:";
return &this->parent;
}
static void
syslog_libc_open(struct syslogger *this OVS_UNUSED, int facility)
{
static char *ident;
/* openlog() is allowed to keep the pointer passed in, without making a
* copy. The daemonize code sometimes frees and replaces
* 'program_name', so make a private copy just for openlog(). (We keep
* a pointer to the private copy to suppress memory leak warnings in
* case openlog() does make its own copy.) */
ident = nullable_xstrdup(program_name);
openlog(ident, LOG_NDELAY, facility);
}
static void
syslog_libc_log(struct syslogger *this OVS_UNUSED, int pri, const char *msg)
{
syslog(pri, "%s", msg);
}
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