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/*
*
* Connection Manager
*
* Copyright (C) 2007-2013 Intel Corporation. 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 version 2 as
* published by the Free Software Foundation.
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <unistd.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include <dlfcn.h>
#include <signal.h>
#include "connman.h"
static const char *program_exec;
static const char *program_path;
/* This makes sure we always have a __debug section. */
CONNMAN_DEBUG_DEFINE(dummy);
/**
* connman_info:
* @format: format string
* @Varargs: list of arguments
*
* Output general information
*/
void connman_info(const char *format, ...)
{
va_list ap;
va_start(ap, format);
vsyslog(LOG_INFO, format, ap);
va_end(ap);
}
/**
* connman_warn:
* @format: format string
* @Varargs: list of arguments
*
* Output warning messages
*/
void connman_warn(const char *format, ...)
{
va_list ap;
va_start(ap, format);
vsyslog(LOG_WARNING, format, ap);
va_end(ap);
}
/**
* connman_error:
* @format: format string
* @varargs: list of arguments
*
* Output error messages
*/
void connman_error(const char *format, ...)
{
va_list ap;
va_start(ap, format);
vsyslog(LOG_ERR, format, ap);
va_end(ap);
}
/**
* connman_debug:
* @format: format string
* @varargs: list of arguments
*
* Output debug message
*/
void connman_debug(const char *format, ...)
{
va_list ap;
va_start(ap, format);
vsyslog(LOG_DEBUG, format, ap);
va_end(ap);
}
static void signal_handler(int signo)
{
connman_error("Aborting (signal %d) [%s]", signo, program_exec);
print_backtrace(program_path, program_exec, 2);
exit(EXIT_FAILURE);
}
static void signal_setup(sighandler_t handler)
{
struct sigaction sa;
sigset_t mask;
sigemptyset(&mask);
sa.sa_handler = handler;
sa.sa_mask = mask;
sa.sa_flags = 0;
sigaction(SIGBUS, &sa, NULL);
sigaction(SIGILL, &sa, NULL);
sigaction(SIGFPE, &sa, NULL);
sigaction(SIGSEGV, &sa, NULL);
sigaction(SIGABRT, &sa, NULL);
sigaction(SIGPIPE, &sa, NULL);
}
extern struct connman_debug_desc __start___debug[];
extern struct connman_debug_desc __stop___debug[];
static gchar **enabled = NULL;
static bool is_enabled(struct connman_debug_desc *desc)
{
int i;
if (!enabled)
return false;
for (i = 0; enabled[i]; i++) {
if (desc->name && g_pattern_match_simple(enabled[i],
desc->name))
return true;
if (desc->file && g_pattern_match_simple(enabled[i],
desc->file))
return true;
}
return false;
}
void __connman_log_enable(struct connman_debug_desc *start,
struct connman_debug_desc *stop)
{
struct connman_debug_desc *desc;
const char *name = NULL, *file = NULL;
if (!start || !stop)
return;
for (desc = start; desc < stop; desc++) {
if (desc->flags & CONNMAN_DEBUG_FLAG_ALIAS) {
file = desc->file;
name = desc->name;
continue;
}
if (file || name) {
if (g_strcmp0(desc->file, file) == 0) {
if (!desc->name)
desc->name = name;
} else
file = NULL;
}
if (is_enabled(desc))
desc->flags |= CONNMAN_DEBUG_FLAG_PRINT;
}
}
int __connman_log_init(const char *program, const char *debug,
gboolean detach, gboolean backtrace,
const char *program_name, const char *program_version)
{
static char path[PATH_MAX];
int option = LOG_NDELAY | LOG_PID;
program_exec = program;
program_path = getcwd(path, sizeof(path));
if (debug)
enabled = g_strsplit_set(debug, ":, ", 0);
__connman_log_enable(__start___debug, __stop___debug);
if (!detach)
option |= LOG_PERROR;
if (backtrace)
signal_setup(signal_handler);
openlog(basename(program), option, LOG_DAEMON);
syslog(LOG_INFO, "%s version %s", program_name, program_version);
return 0;
}
void __connman_log_cleanup(gboolean backtrace)
{
syslog(LOG_INFO, "Exit");
closelog();
if (backtrace)
signal_setup(SIG_DFL);
g_strfreev(enabled);
}
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