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author | Roland McGrath <roland@gnu.org> | 1995-02-18 01:27:10 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 1995-02-18 01:27:10 +0000 |
commit | 28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch) | |
tree | 15f07c4c43d635959c6afee96bde71fb1b3614ee /sysdeps/mach/hurd/geteuid.c | |
download | glibc-28f540f45bbacd939bfd07f213bcad2bf730b1bf.tar.gz |
initial import
Diffstat (limited to 'sysdeps/mach/hurd/geteuid.c')
-rw-r--r-- | sysdeps/mach/hurd/geteuid.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/geteuid.c b/sysdeps/mach/hurd/geteuid.c new file mode 100644 index 0000000000..416cd31f82 --- /dev/null +++ b/sysdeps/mach/hurd/geteuid.c @@ -0,0 +1,58 @@ +/* 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 <ansidecl.h> +#include <errno.h> +#include <unistd.h> +#include <hurd.h> +#include <hurd/id.h> + +/* Get the effective user ID of the calling process. */ +uid_t +DEFUN_VOID(__geteuid) +{ + error_t err; + uid_t euid; + + HURD_CRITICAL_BEGIN; + __mutex_lock (&_hurd_id.lock); + + if (err = _hurd_check_ids ()) + { + errno = err; + euid = -1; + } + else if (_hurd_id.gen.nuids >= 1) + euid = _hurd_id.gen.uids[0]; + else if (_hurd_id.aux.nuids >= 1) + /* We have no effective uids. Return the real uid. */ + euid = _hurd_id.aux.uids[0]; + else + { + /* We do not even have a real uid. */ + errno = EGRATUITOUS; + euid = -1; + } + + __mutex_unlock (&_hurd_id.lock); + HURD_CRITICAL_END; + + return euid; +} + +weak_alias (__geteuid, geteuid) |