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/*
Unix SMB/CIFS implementation.
Low-level connections.tdb access functions
Copyright (C) Volker Lendecke 2007
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
TDB_CONTEXT *conn_tdb_ctx(BOOL rw)
{
static TDB_CONTEXT *tdb;
if (tdb != NULL) {
return tdb;
}
if (rw) {
tdb = tdb_open_log(lock_path("connections.tdb"), 0,
TDB_CLEAR_IF_FIRST|TDB_DEFAULT,
O_RDWR | O_CREAT, 0644);
}
else {
tdb = tdb_open_log(lock_path("connections.tdb"), 0,
TDB_DEFAULT, O_RDONLY, 0);
}
if (tdb == NULL) {
DEBUG(0, ("Could not open connections.tdb: %s\n",
strerror(errno)));
}
return tdb;
}
struct conn_traverse_state {
int (*fn)(TDB_CONTEXT *tdb,
const struct connections_key *key,
const struct connections_data *data,
void *private_data);
void *private_data;
};
static int conn_traverse_fn(TDB_CONTEXT *tdb, TDB_DATA key,
TDB_DATA data, void *private_data)
{
struct conn_traverse_state *state =
(struct conn_traverse_state *)private_data;
if ((key.dsize != sizeof(struct connections_key))
|| (data.dsize != sizeof(struct connections_data))) {
return 0;
}
return state->fn(
tdb, (const struct connections_key *)key.dptr,
(const struct connections_data *)data.dptr,
state->private_data);
}
int connections_traverse(int (*fn)(TDB_CONTEXT *tdb, TDB_DATA key,
TDB_DATA data, void *private_data),
void *private_data)
{
TDB_CONTEXT *tdb = conn_tdb_ctx(True);
if (tdb == NULL) {
DEBUG(5, ("Could not open connections.tdb r/w, trying r/o\n"));
tdb = conn_tdb_ctx(False);
}
if (tdb == NULL) {
return -1;
}
return tdb_traverse(tdb, fn, private_data);
}
int connections_forall(int (*fn)(TDB_CONTEXT *tdb,
const struct connections_key *key,
const struct connections_data *data,
void *private_data),
void *private_data)
{
struct conn_traverse_state state;
state.fn = fn;
state.private_data = private_data;
return connections_traverse(conn_traverse_fn, (void *)&state);
}
BOOL connections_init(BOOL rw)
{
return (conn_tdb_ctx(rw) != NULL);
}
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