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/* cvm/cvm-pgsql.c - PgSQL CVM
* Copyright (C)2006 Bruce Guenter <bruce@untroubled.org>
*
* This program 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.
*
* This program 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
*/
#include <libpq-fe.h>
#include <stdlib.h>
#include <str/str.h>
#include "module.h"
#include "sql.h"
const char program[] = "cvm-pgsql";
const char sql_query_var[] = "CVM_PGSQL_QUERY";
const char sql_pwcmp_var[] = "CVM_PGSQL_PWCMP";
const char sql_postq_var[] = "CVM_PGSQL_POSTQ";
static PGconn* pg;
int sql_auth_init(void)
{
if ((pg = PQconnectdb("")) == 0) return CVME_IO;
if (PQstatus(pg) == CONNECTION_BAD) return CVME_IO;
return 0;
}
static PGresult* result;
const char* sql_get_field(int field)
{
return PQgetisnull(result, 0, field) ? 0 : PQgetvalue(result, 0, field);
}
static int pgsql_query(const str* query)
{
if (result) PQclear(result);
if ((result = PQexec(pg, query->s)) != 0) return 1;
if (PQstatus(pg) != CONNECTION_BAD) return 0;
PQreset(pg);
if ((result = PQexec(pg, query->s)) != 0) return 1;
return 0;
}
int sql_post_query(const str* query)
{
if (!pgsql_query(query)) return CVME_IO | CVME_FATAL;
switch (PQresultStatus(result)) {
case PGRES_TUPLES_OK:
case PGRES_COMMAND_OK:
return 0;
default: return CVME_IO;
}
}
int sql_auth_query(const str* query)
{
if (!pgsql_query(query)) return -(CVME_IO | CVME_FATAL);
switch (PQresultStatus(result)) {
case PGRES_TUPLES_OK: return PQntuples(result);
case PGRES_COMMAND_OK: return -CVME_PERMFAIL;
default: return -CVME_IO;
}
}
void sql_auth_stop(void)
{
PQfinish(pg);
}
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