source3/lib/dbwrap/dbwrap.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Database interface wrapper
   4    Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2006
   5
   6    Major code contributions from Aleksey Fedoseev (fedoseev@ru.ibm.com)
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "dbwrap/dbwrap.h"
  24 #include "dbwrap/dbwrap_private.h"
  25
  26 /*
  27  * Fall back using fetch_locked if no genuine fetch operation is provided
  28  */
  29
  30 int dbwrap_fallback_fetch(struct db_context *db, TALLOC_CTX *mem_ctx,
  31                           TDB_DATA key, TDB_DATA *data)
  32 {
  33         struct db_record *rec;
  34
  35         if (!(rec = db->fetch_locked(db, mem_ctx, key))) {
  36                 return -1;
  37         }
  38
  39         data->dsize = rec->value.dsize;
  40         data->dptr = talloc_move(mem_ctx, &rec->value.dptr);
  41         TALLOC_FREE(rec);
  42         return 0;
  43 }
  44
  45 /*
  46  * Fall back using fetch if no genuine parse operation is provided
  47  */
  48
  49 int dbwrap_fallback_parse_record(struct db_context *db, TDB_DATA key,
  50                                  int (*parser)(TDB_DATA key,
  51                                                TDB_DATA data,
  52                                                void *private_data),
  53                                  void *private_data)
  54 {
  55         TDB_DATA data;
  56         int res;
  57
  58         res = db->fetch(db, talloc_tos(), key, &data);
  59         if (res != 0) {
  60                 return res;
  61         }
  62
  63         res = parser(key, data, private_data);
  64         TALLOC_FREE(data.dptr);
  65         return res;
  66 }