source/lib/util_nttoken.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  Authentication utility functions
   4  *  Copyright (C) Andrew Tridgell 1992-1998
   5  *  Copyright (C) Andrew Bartlett 2001
   6  *  Copyright (C) Jeremy Allison 2000-2001
   7  *  Copyright (C) Rafal Szczesniak 2002
   8  *  Copyright (C) Volker Lendecke 2006
   9  *  Copyright (C) Michael Adam 2007
  10  *
  11  *  This program is free software; you can redistribute it and/or modify
  12  *  it under the terms of the GNU General Public License as published by
  13  *  the Free Software Foundation; either version 3 of the License, or
  14  *  (at your option) any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful,
  17  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *  GNU General Public License for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License
  22  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  23  */
  24
  25 /* function(s) moved from auth/auth_util.c to minimize linker deps */
  26
  27 #include "includes.h"
  28
  29 /****************************************************************************
  30  Duplicate a SID token.
  31 ****************************************************************************/
  32
  33 NT_USER_TOKEN *dup_nt_token(TALLOC_CTX *mem_ctx, const NT_USER_TOKEN *ptoken)
  34 {
  35         NT_USER_TOKEN *token;
  36
  37         if (!ptoken)
  38                 return NULL;
  39
  40         token = TALLOC_P(mem_ctx, NT_USER_TOKEN);
  41         if (token == NULL) {
  42                 DEBUG(0, ("talloc failed\n"));
  43                 return NULL;
  44         }
  45
  46         ZERO_STRUCTP(token);
  47
  48         if (ptoken->user_sids && ptoken->num_sids) {
  49                 token->user_sids = (DOM_SID *)talloc_memdup(
  50                         token, ptoken->user_sids, sizeof(DOM_SID) * ptoken->num_sids );
  51
  52                 if (token->user_sids == NULL) {
  53                         DEBUG(0, ("talloc_memdup failed\n"));
  54                         TALLOC_FREE(token);
  55                         return NULL;
  56                 }
  57                 token->num_sids = ptoken->num_sids;
  58         }
  59
  60         /* copy the privileges; don't consider failure to be critical here */
  61
  62         if ( !se_priv_copy( &token->privileges, &ptoken->privileges ) ) {
  63                 DEBUG(0,("dup_nt_token: Failure to copy SE_PRIV!.  "
  64                          "Continuing with 0 privileges assigned.\n"));
  65         }
  66
  67         return token;
  68 }
  69