cdr.c

/*
 * Asterisk -- A telephony toolkit for Linux.
 *
 * Call Detail Record API 
 * 
 * Copyright (C) 1999 - 2005, Digium, Inc.
 *
 * Mark Spencer <markster@digium.com>
 *
 * This program is free software, distributed under the terms of
 * the GNU General Public License.
 *
 * Includes code and algorithms from the Zapata library.
 *
 */

#include <unistd.h>
#include <stdlib.h>
#include <string.h>

#include "asterisk/lock.h"
#include "asterisk/channel.h"
#include "asterisk/cdr.h"
#include "asterisk/logger.h"
#include "asterisk/callerid.h"
#include "asterisk/causes.h"
#include "asterisk/options.h"
#include "asterisk/linkedlists.h"
#include "asterisk/utils.h"

int ast_default_amaflags = AST_CDR_DOCUMENTATION;
char ast_default_accountcode[20] = "";

struct ast_cdr_beitem {
	char name[20];
	char desc[80];
	ast_cdrbe be;
	AST_LIST_ENTRY(ast_cdr_beitem) list;
};

static AST_LIST_HEAD_STATIC(be_list, ast_cdr_beitem);

/*
 * We do a lot of checking here in the CDR code to try to be sure we don't ever let a CDR slip
 * through our fingers somehow.  If someone allocates a CDR, it must be completely handled normally
 * or a WARNING shall be logged, so that we can best keep track of any escape condition where the CDR
 * isn't properly generated and posted.
 */

int ast_cdr_register(char *name, char *desc, ast_cdrbe be)
{
	struct ast_cdr_beitem *i;

	if (!name)
		return -1;
	if (!be) {
		ast_log(LOG_WARNING, "CDR engine '%s' lacks backend\n", name);
		return -1;
	}

	AST_LIST_LOCK(&be_list);
	AST_LIST_TRAVERSE(&be_list, i, list) {
		if (!strcasecmp(name, i->name))
			break;
	}
	AST_LIST_UNLOCK(&be_list);

	if (i) {
		ast_log(LOG_WARNING, "Already have a CDR backend called '%s'\n", name);
		return -1;