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/*
* $Id$
*
* PostgreSQL Database Driver for SER
*
* Portions Copyright (C) 2001-2003 FhG FOKUS
* Copyright (C) 2003 August.Net Services, LLC
* Portions Copyright (C) 2005-2008 iptelorg GmbH
*
* This file is part of SER, a free SIP server.
*
* SER 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
*
* For a license to use the ser software under conditions other than those
* described here, or to purchase support for this software, please contact
* iptel.org by e-mail at the following addresses: info@iptel.org
*
* SER 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., 59
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/** \addtogroup postgres
* @{
*/
/** \file
* Implementation of functions related to PostgreSQL Oid identifiers.
*/
#include "pg_oid.h"
#include "../../dprint.h"
#include "../../ut.h"
#include <strings.h>
#include <stdlib.h>
#include <string.h>
/** An array of supported PostgreSQL field types. */
static char* pg_type_id_name[] = {
"bool",
"bytea",
"char",
"int8",
"int2",
"int4",
"text",
"float4",
"float8",
"inet",
"bpchar",
"varchar",
"timestamp",
"timestamptz",
"bit",
"varbit",
};
static int get_index(char* name)
{
int i;
for(i = 0; i < PG_ID_MAX; i++) {
if (strcasecmp(name, pg_type_id_name[i]) == 0) return i;
}
return -1;
}
pg_type_t* pg_new_oid_table(PGresult* res)
{
pg_type_t* table = NULL;
int row, n = 0, end, idx, fields;
str s;
if (res == NULL || PQresultStatus(res) != PGRES_TUPLES_OK) goto error;
n = PQntuples(res);
if (n <= 0) goto error;
fields = PQnfields(res);
if (fields != 2) goto error;
table = (pg_type_t*)malloc(sizeof(pg_type_t) * (n + 1));
if (table == NULL) goto error;
memset(table, '\0', sizeof(pg_type_t) * (n + 1));
end = n - 1;
for(row = 0; row < n; row++) {
/* Get name */
s.s = PQgetvalue(res, row, 0);
if (s.s == NULL) goto error;
/* Find index where the record is to be stored */
idx = get_index(s.s);
if (idx == -1) idx = end--;
/* Store the name */
table[idx].name = strdup(s.s);
if (table[idx].name == NULL) goto error;
/* Oid */
s.s = PQgetvalue(res, row, 1);
if (s.s == NULL) goto error;
s.len = strlen(s.s);
if (str2int(&s, &table[idx].oid) < 0) goto error;
DBG("postgres: Type %s maps to Oid %d\n", table[idx].name, table[idx].oid);
}
return table;
error:
ERR("postgres: Error while obtaining field/data type description from server\n");
if (table) {
for(idx = 0; idx < n; idx++) {
if (table[idx].name) free(table[idx].name);
}
free(table);
}
return NULL;
}
void pg_destroy_oid_table(pg_type_t* table)
{
int i;
if (table) {
for(i = 0; table[i].name; i++) {
free(table[i].name);
}
free(table);
}
}
int pg_name2oid(Oid* oid, pg_type_t* table, const char* name)
{
int i;
if (!oid || !table) {
BUG("postgres: Invalid parameters to pg_name2oid\n");
return -1;
}
if (name == NULL || name[0] == '\0') return 1;
for(i = 0; table[i].name; i++) {
if (strcasecmp(table[i].name, name) == 0) {
*oid = table[i].oid;
return 0;
}
}
return 1;
}
int pg_oid2name(const char** name, pg_type_t* table, Oid oid)
{
int i;
if (!table || !name) {
BUG("postgres: Invalid parameters to pg_oid2name\n");
return -1;
}
for(i = 0; table[i].name; i++) {
if (oid == table[i].oid) {
*name = table[i].name;
return 0;
}
}
return 1;
}
/** @} */
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