/*
 *
 *  BlueZ - Bluetooth protocol stack for Linux
 *
 *  Copyright (C) 2004-2010  Marcel Holtmann <marcel@holtmann.org>
 *
 *
 *  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 St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdio.h>
#include <stdarg.h>
#include <syslog.h>

#include <glib.h>

#include "log.h"

static inline void vinfo(const char *format, va_list ap)
{
	vsyslog(LOG_INFO, format, ap);
}

void info(const char *format, ...)
{
	va_list ap;

	va_start(ap, format);

	vinfo(format, ap);

	va_end(ap);
}

void error(const char *format, ...)
{
	va_list ap;

	va_start(ap, format);

	vsyslog(LOG_ERR, format, ap);

	va_end(ap);
}

void debug(const char *format, ...)
{
	va_list ap;

	va_start(ap, format);

	vsyslog(LOG_DEBUG, format, ap);

	va_end(ap);
}

extern struct btd_debug_desc __start___debug[];
extern struct btd_debug_desc __stop___debug[];

static gchar **enabled = NULL;

static gboolean is_enabled(struct btd_debug_desc *desc)
{
        int i;

        if (enabled == NULL)
                return 0;

        for (i = 0; enabled[i] != NULL; i++) {
                if (desc->name != NULL && g_pattern_match_simple(enabled[i],
                                                        desc->name) == TRUE)
                        return 1;
                if (desc->file != NULL && g_pattern_match_simple(enabled[i],
                                                        desc->file) == TRUE)
                        return 1;
        }

        return 0;
}

void __btd_log_init(const char *debug, int detach)
{
	int option = LOG_NDELAY | LOG_PID;
	struct btd_debug_desc *desc;
	const char *name = NULL, *file = NULL;

	if (debug != NULL)
		enabled = g_strsplit_set(debug, ":, ", 0);

	for (desc = __start___debug; desc < __stop___debug; desc++) {
		if (file != NULL || name != NULL) {
			if (g_strcmp0(desc->file, file) == 0) {
				if (desc->name == NULL)
					desc->name = name;
			} else
				file = NULL;
		}

		if (is_enabled(desc))
			desc->flags |= BTD_DEBUG_FLAG_PRINT;
	}

	if (!detach)
		option |= LOG_PERROR;

	openlog("bluetoothd", option, LOG_DAEMON);

	syslog(LOG_INFO, "Bluetooth deamon %s", VERSION);
}

void __btd_log_cleanup(void)
{
	closelog();

	g_strfreev(enabled);
}