-/*
+/*
Unix SMB/CIFS implementation.
Database interface wrapper
Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2006
Major code contributions from Aleksey Fedoseev (fedoseev@ru.ibm.com)
-
+
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 3 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, see <http://www.gnu.org/licenses/>.
*/
* Fall back using fetch_locked if no genuine fetch operation is provided
*/
-int dbwrap_fallback_fetch(struct db_context *db, TALLOC_CTX *mem_ctx,
- TDB_DATA key, TDB_DATA *data)
+static NTSTATUS dbwrap_fallback_fetch(struct db_context *db,
+ TALLOC_CTX *mem_ctx,
+ TDB_DATA key, TDB_DATA *data)
{
struct db_record *rec;
- if (!(rec = db->fetch_locked(db, mem_ctx, key))) {
- return -1;
+ rec = dbwrap_fetch_locked(db, mem_ctx, key);
+ if (rec == NULL) {
+ return NT_STATUS_UNSUCCESSFUL;
}
data->dsize = rec->value.dsize;
data->dptr = talloc_move(mem_ctx, &rec->value.dptr);
TALLOC_FREE(rec);
- return 0;
+ return NT_STATUS_OK;
}
/*
static int dbwrap_fallback_exists(struct db_context *db, TDB_DATA key)
{
- int res = dbwrap_parse_record(db, key, NULL, NULL);
- return ( res == -1) ? 0 : 1;
+ NTSTATUS status = dbwrap_parse_record(db, key, NULL, NULL);
+ return NT_STATUS_IS_OK(status) ? 1 : 0;
}
/*
* Fall back using fetch if no genuine parse operation is provided
*/
-int dbwrap_fallback_parse_record(struct db_context *db, TDB_DATA key,
- int (*parser)(TDB_DATA key,
- TDB_DATA data,
- void *private_data),
- void *private_data)
+static NTSTATUS dbwrap_fallback_parse_record(struct db_context *db, TDB_DATA key,
+ void (*parser)(TDB_DATA key,
+ TDB_DATA data,
+ void *private_data),
+ void *private_data)
{
+ struct db_record *rec;
TDB_DATA data;
- int res;
- res = db->fetch(db, talloc_tos(), key, &data);
- if (res != 0) {
- return -1;
+ rec = dbwrap_fetch_locked(db, talloc_tos(), key);
+ if (rec == NULL) {
+ return NT_STATUS_NOT_FOUND;
+ }
+ data = dbwrap_record_get_value(rec);
+
+ data.dptr = talloc_memdup(talloc_tos(), data.dptr, data.dsize);
+ TALLOC_FREE(rec);
+ if (data.dptr == NULL) {
+ return NT_STATUS_NO_MEMORY;
}
- res = parser(key, data, private_data);
+ parser(key, data, private_data);
+
TALLOC_FREE(data.dptr);
- return res;
+ return NT_STATUS_OK;
}
static int delete_record(struct db_record *rec, void *data)
{
- NTSTATUS status = rec->delete_rec(rec);
+ NTSTATUS status = dbwrap_record_delete(rec);
return NT_STATUS_IS_OK(status) ? 0 : -1;
}
/*
- * Fallback wipe ipmlementation using traverse and delete if no genuine
+ * Fallback wipe implementation using traverse and delete if no genuine
* wipe operation is provided
*/
-int dbwrap_fallback_wipe(struct db_context *db)
+static int dbwrap_fallback_wipe(struct db_context *db)
{
- NTSTATUS status = dbwrap_trans_traverse(db, &delete_record, NULL);
+ NTSTATUS status = dbwrap_trans_traverse(db, delete_record, NULL);
return NT_STATUS_IS_OK(status) ? 0 : -1;
}
return rec->value;
}
-void *dbwrap_record_get_private_data(const struct db_record *rec)
+NTSTATUS dbwrap_record_store(struct db_record *rec, TDB_DATA data, int flags)
{
- return rec->private_data;
+ return rec->store(rec, data, flags);
}
-TDB_DATA dbwrap_fetch(struct db_context *db, TALLOC_CTX *mem_ctx,
- TDB_DATA key)
+NTSTATUS dbwrap_record_delete(struct db_record *rec)
{
- TDB_DATA result;
+ return rec->delete_rec(rec);
+}
- if (db->fetch(db, mem_ctx, key, &result) != 0) {
- return make_tdb_data(NULL, 0);
- }
+struct db_record *dbwrap_fetch_locked(struct db_context *db,
+ TALLOC_CTX *mem_ctx,
+ TDB_DATA key)
+{
+ return db->fetch_locked(db, mem_ctx, key);
+}
- return result;
+NTSTATUS dbwrap_fetch(struct db_context *db, TALLOC_CTX *mem_ctx,
+ TDB_DATA key, TDB_DATA *value)
+{
+ if (value == NULL) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ if (db->fetch == NULL) {
+ return dbwrap_fallback_fetch(db, mem_ctx, key, value);
+ }
+ return db->fetch(db, mem_ctx, key, value);
}
bool dbwrap_exists(struct db_context *db, TDB_DATA key)
struct db_record *rec;
NTSTATUS status;
- rec = db->fetch_locked(db, talloc_tos(), key);
+ rec = dbwrap_fetch_locked(db, talloc_tos(), key);
if (rec == NULL) {
return NT_STATUS_NO_MEMORY;
}
- status = rec->store(rec, data, flags);
+ status = dbwrap_record_store(rec, data, flags);
TALLOC_FREE(rec);
return status;
}
struct db_record *rec;
NTSTATUS status;
- rec = db->fetch_locked(db, talloc_tos(), key);
+ rec = dbwrap_fetch_locked(db, talloc_tos(), key);
if (rec == NULL) {
return NT_STATUS_NO_MEMORY;
}
- status = rec->delete_rec(rec);
+ status = dbwrap_record_delete(rec);
TALLOC_FREE(rec);
return status;
}
return NT_STATUS_OK;
}
-static int dbwrap_null_parser(TDB_DATA key, TDB_DATA val, void* data)
+static void dbwrap_null_parser(TDB_DATA key, TDB_DATA val, void* data)
{
- return 0;
+ return;
}
-int dbwrap_parse_record(struct db_context *db, TDB_DATA key,
- int (*parser)(TDB_DATA key, TDB_DATA data,
- void *private_data),
- void *private_data)
+NTSTATUS dbwrap_parse_record(struct db_context *db, TDB_DATA key,
+ void (*parser)(TDB_DATA key, TDB_DATA data,
+ void *private_data),
+ void *private_data)
{
if (parser == NULL) {
parser = dbwrap_null_parser;
}
- if (db->parse_record) {
- return db->parse_record(db, key, parser, private_data);
- } else {
- return dbwrap_fallback_parse_record(db, key, parser, private_data);
+ if (db->parse_record == NULL) {
+ return dbwrap_fallback_parse_record(db, key, parser,
+ private_data);
}
+ return db->parse_record(db, key, parser, private_data);
}
int dbwrap_wipe(struct db_context *db)
{
+ if (db->wipe == NULL) {
+ return dbwrap_fallback_wipe(db);
+ }
return db->wipe(db);
}
git.samba.org / kai / samba.git / blobdiff