diff options
Diffstat (limited to 'REORG.TODO/sysdeps/mach/hurd/getresgid.c')
-rw-r--r-- | REORG.TODO/sysdeps/mach/hurd/getresgid.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/getresgid.c b/REORG.TODO/sysdeps/mach/hurd/getresgid.c new file mode 100644 index 0000000000..2bd873f428 --- /dev/null +++ b/REORG.TODO/sysdeps/mach/hurd/getresgid.c @@ -0,0 +1,61 @@ +/* getresgid -- fetch real group ID, effective group ID, and saved-set group ID + Copyright (C) 2002-2017 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <unistd.h> +#include <hurd.h> +#include <hurd/id.h> + +/* Fetch the real group ID, effective group ID, and saved-set group ID, + of the calling process. */ +int +__getresgid (gid_t *rgid, gid_t *egid, gid_t *sgid) +{ + error_t err; + gid_t real, eff, saved; + + HURD_CRITICAL_BEGIN; + __mutex_lock (&_hurd_id.lock); + + err = _hurd_check_ids (); + if (!err) + { + if (_hurd_id.aux.ngids < 1) + /* We do not even have a real GID. */ + err = EGRATUITOUS; + else + { + real = _hurd_id.aux.gids[0]; + eff = _hurd_id.gen.ngids < 1 ? real : _hurd_id.gen.gids[0]; + saved = _hurd_id.aux.ngids < 2 ? real : _hurd_id.aux.gids[1]; + } + } + + __mutex_unlock (&_hurd_id.lock); + HURD_CRITICAL_END; + + if (err) + return __hurd_fail (err); + + *rgid = real; + *egid = eff; + *sgid = saved; + return 0; +} +libc_hidden_def (__getresgid) +weak_alias (__getresgid, getresgid) |