diff options
Diffstat (limited to 'sysdeps/mach/hurd/group_member.c')
| -rw-r--r-- | sysdeps/mach/hurd/group_member.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/group_member.c b/sysdeps/mach/hurd/group_member.c new file mode 100644 index 0000000000..09da4479cd --- /dev/null +++ b/sysdeps/mach/hurd/group_member.c @@ -0,0 +1,56 @@ +/* `group_member' -- test if process is in a given group. Hurd version. +Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <errno.h> +#include <unistd.h> +#include <hurd.h> +#include <hurd/id.h> + +int +__group_member (gid) + gid_t gid; +{ + int member = 0; + error_t err; + void *crit; + + crit = _hurd_critical_section_lock (); + __mutex_lock (&_hurd_id.lock); + + err = _hurd_check_ids (); + if (! err) + { + size_t i; + for (i = 0; i < _hurd_id.gen.ngids; ++i) + if (_hurd_id.gen.gids[i] == gid) + { + member = 1; + break; + } + } + + __mutex_unlock (&_hurd_id.lock); + _hurd_critical_section_unlock (crit); + + if (err) + __hurd_fail (err); + return member; +} + +weak_alias (__group_member, group_member) |