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kamailio/lib/srdb2/db_uri.c

125 lines
3.2 KiB

/*
* Copyright (C) 2001-2005 FhG FOKUS
* Copyright (C) 2006-2007 iptelorg GmbH
*
* This file is part of Kamailio, a free SIP server.
*
* Kamailio 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
*
* Kamailio 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
*/
/** \ingroup DB_API
* @{
*/
#include "db_uri.h"
#include "../../dprint.h"
#include "../../mem/mem.h"
#include "../../ut.h"
#include <string.h>
/* 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 CMP_STR(s1, s2, f) \
((s1) != (s2)) && ((s1) == 0 || (s2) == 0 || (f)((s1), (s2)) != 0)
unsigned char db_uri_cmp(db_uri_t* uri1, db_uri_t* uri2)
{
if (!uri1 || !uri2) return 0;
if (CMP_STR(uri1->scheme.s, uri2->scheme.s, strcmp)) return 0;
if (uri1->cmp) {
return uri1->cmp(uri1, uri2);
} else {
/* No driver specific comparison function, compare bodies
* byte-wise
*/
if (CMP_STR(uri1->body.s, uri2->body.s, strcmp)) return 0;
}
return 1;
}
/*
* Create a new database URI
*/
db_uri_t* db_uri(const char* uri)
{
char* colon;
int len;
db_uri_t* newp;
char *turi;
newp = (db_uri_t*)pkg_malloc(sizeof(db_uri_t));
if (newp == NULL) goto error;
memset(newp, '\0', sizeof(db_uri_t));
if (db_gen_init(&newp->gen) < 0) goto error;
len = strlen(uri);
turi = (char*)uri;
colon = q_memchr(turi, ':', len);
if (colon == NULL) {
newp->scheme.s = pkg_malloc(len + 1);
if (newp->scheme.s == NULL) goto error;
memcpy(newp->scheme.s, uri, len);
newp->scheme.len = len;
} else {
newp->scheme.len = colon - uri;
newp->scheme.s = pkg_malloc(newp->scheme.len + 1);
if (newp->scheme.s == NULL) goto error;
memcpy(newp->scheme.s, uri, colon - uri);
newp->body.len = len - newp->scheme.len - 1;
newp->body.s = pkg_malloc(newp->body.len + 1);
if (newp->body.s == NULL) goto error;
memcpy(newp->body.s, colon + 1, newp->body.len);
newp->body.s[newp->body.len] = '\0';
}
newp->scheme.s[newp->scheme.len] = '\0';
/* Call db_uri function if the driver has it */
if (db_drv_call(&newp->scheme, "db_uri", newp, 0) < 0) goto error;
return newp;
error:
ERR("db_uri: Error while creating db_uri structure\n");
if (newp) {
db_gen_free(&newp->gen);
if (newp->body.s) pkg_free(newp->body.s);
if (newp->scheme.s) pkg_free(newp->scheme.s);
pkg_free(newp);
}
return 0;
}
/*
* Free a connection identifier
*/
void db_uri_free(db_uri_t* uri)
{
if (uri == NULL) return;
db_gen_free(&uri->gen);
if (uri->body.s) pkg_free(uri->body.s);
if (uri->scheme.s) pkg_free(uri->scheme.s);
pkg_free(uri);
}
/** @} */