utils/pdbt/pdb_server_backend.c
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 /*
  * Copyright (C) 2009 1&1 Internet AG
  *
  * This file is part of sip-router, a free SIP server.
  *
  * sip-router 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
  *
  * sip-router 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 
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  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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  */
 
 #include "pdb_server_backend.h"
 #include "dtm.h"
 #include "log.h"
 #include <stdio.h>
 #include <string.h>
 
 
 
 
 struct dtm_node_t *mroot;
 
 
 
 
 int init_backend(char *filename)
 {
 	mroot=dtm_load(filename);
 	if (mroot == NULL) {
 		LERR("cannot load '%s'.\n", filename);
 		return -1;
 	}
 	return 0;
 }
 
 
 
 
 carrier_t lookup_number(char *number)
 {
 	carrier_t carrierid;
 	int nmatch=dtm_longest_match(mroot, number, strlen(number), &carrierid);
 	if (nmatch<=0) {
 		/* nothing found - return id 0 */
 		carrierid=0;
 	}
 	LINFO("request='%s', nmatch=%ld, carrier=%ld\n", number, (long int)nmatch, (long int)carrierid);
 	return carrierid;
 }