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/*
* $Id$
*
* BDB Database Driver for SIP-router
*
* Copyright (C) 2008 iptelorg GmbH
*
* 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 Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/** \addtogroup bdb
* @{
*/
/*! \file
* Berkeley DB : The implementation of parser parsing bdb:.. URIs.
*
* \ingroup database
*/
#include <string.h>
#include "../../mem/mem.h"
#include "../../ut.h"
#include "bdb_uri.h"
#ifndef CFG_DIR
#define CFG_DIR "/tmp"
#endif
#define BDB_ID "bdb://"
#define BDB_ID_LEN (sizeof(BDB_ID)-1)
/** compare s1 & s2 with a function f (which should return 0 if ==);
* s1 & s2 can be null
* return 0 if match, 1 if not
*/
#define cmpstr(s1, s2, f) \
((s1)!=(s2)) && ((s1)==0 || (s2)==0 || (f)((s1), (s2))!=0)
/** Compares two BDB connection URIs.
* This function is called whenever the database abstraction layer in
* SER needs to compare to URIs with the bdb scheme. The function
* compares hosts and port numbers of both URIs (host part comparison
* is case insensitive). The URI comparison is mainly used to
* by the connection pool to determine if a connection to a given
* server already exists.
**/
static unsigned char bdb_uri_cmp(db_uri_t* uri1, db_uri_t* uri2)
{
bdb_uri_t * buri1, *buri2;
if (!uri1 || !uri2) return 0;
buri1 = DB_GET_PAYLOAD(uri1);
buri2 = DB_GET_PAYLOAD(uri2);
if (cmpstr(buri1->uri, buri2->uri, strcmp))
return 0;
return 1;
}
/*
* Parse BDB URI of form
* //path/to/dir
*
* Returns 0 if parsing was successful and -1 otherwise
*/
int parse_bdb_uri(bdb_uri_t* res, str* uri)
{
str s;
if(uri==NULL || uri->s==NULL)
return -1;
s = *uri;
res->uri = (char*)pkg_malloc((s.len+1)*sizeof(char));
if(res->uri == NULL)
{
ERR("bdb: no more pkg\n");
return -1;
}
memcpy(res->uri, s.s, s.len);
res->uri[s.len] = '\0';
if(s.s[0]!='/')
{
res->path.s = (char*)pkg_malloc((sizeof(CFG_DIR)+s.len+2)*sizeof(char));
memset(res->path.s, 0, (sizeof(CFG_DIR)+s.len+2)*sizeof(char));
if(res->path.s==NULL)
{
ERR("bdb: no more pkg.\n");
pkg_free(res->uri);
res->uri = NULL;
return -1;
}
strcpy(res->path.s, CFG_DIR);
res->path.s[sizeof(CFG_DIR)] = '/';
strncpy(&res->path.s[sizeof(CFG_DIR)+1], s.s, s.len);
res->path.len = sizeof(CFG_DIR)+s.len;
} else {
res->path.s = res->uri;
res->path.len = strlen(res->path.s);
}
return 0;
}
static void bdb_uri_free(db_uri_t* uri, bdb_uri_t* payload)
{
if (payload == NULL) return;
if(payload->path.s && payload->path.s!=payload->uri)
pkg_free(payload->path.s);
if (payload->uri) pkg_free(payload->uri);
db_drv_free(&payload->drv);
pkg_free(payload);
}
int bdb_uri(db_uri_t* uri)
{
bdb_uri_t *buri;
buri = (bdb_uri_t*)pkg_malloc(sizeof(bdb_uri_t));
if (buri == NULL) {
ERR("bdb: No memory left\n");
goto error;
}
memset(buri, '\0', sizeof(bdb_uri_t));
if (db_drv_init(&buri->drv, bdb_uri_free) < 0) goto error;
if (parse_bdb_uri(buri, &uri->body) < 0) goto error;
DB_SET_PAYLOAD(uri, buri);
uri->cmp = bdb_uri_cmp;
return 0;
error:
if (buri) {
if (buri->uri) pkg_free(buri->uri);
db_drv_free(&buri->drv);
pkg_free(buri);
}
return -1;
}
/** @} */
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