1  /* xgetgroups.c -- return a list of the groups a user or current process is in
       2  
       3     Copyright (C) 2007-2023 Free Software Foundation, Inc.
       4  
       5     This program is free software: you can redistribute it and/or modify
       6     it under the terms of the GNU General Public License as published by
       7     the Free Software Foundation, either version 3 of the License, or
       8     (at your option) any later version.
       9  
      10     This program is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      13     GNU General Public License for more details.
      14  
      15     You should have received a copy of the GNU General Public License
      16     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      17  
      18  /* Extracted from coreutils' src/id.c. */
      19  
      20  #include <config.h>
      21  
      22  #include "mgetgroups.h"
      23  
      24  #include <errno.h>
      25  
      26  #include "xalloc.h"
      27  
      28  /* Like mgetgroups, but call xalloc_die on allocation failure.  */
      29  
      30  int
      31  xgetgroups (char const *username, gid_t gid, gid_t **groups)
      32  {
      33    int result = mgetgroups (username, gid, groups);
      34    if (result == -1 && errno == ENOMEM)
      35      xalloc_die ();
      36    return result;
      37  }