sysdeps/unix/sysv/linux/setgroups.c

   1 /* Copyright (C) 1997-2018 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <errno.h>
  19 #include <grp.h>
  20 #include <setxid.h>
  21 #include <sysdep.h>
  22
  23
  24 /* Set the group set for the current user to GROUPS (N of them).  For
  25    Linux we must convert the array of groups into the format that the
  26    kernel expects.  */
  27 int
  28 setgroups (size_t n, const gid_t *groups)
  29 {
  30 #ifdef __NR_setgroups32
  31   return INLINE_SETXID_SYSCALL (setgroups32, 2, n, groups);
  32 #else
  33   return INLINE_SETXID_SYSCALL (setgroups, 2, n, groups);
  34 #endif
  35 }
  36 libc_hidden_def (setgroups)