about summary refs log tree commit diff
path: root/REORG.TODO/sysdeps/mach/hurd/geteuid.c
diff options
context:
space:
mode:
Diffstat (limited to 'REORG.TODO/sysdeps/mach/hurd/geteuid.c')
-rw-r--r--REORG.TODO/sysdeps/mach/hurd/geteuid.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/geteuid.c b/REORG.TODO/sysdeps/mach/hurd/geteuid.c
new file mode 100644
index 0000000000..5f6deb7a92
--- /dev/null
+++ b/REORG.TODO/sysdeps/mach/hurd/geteuid.c
@@ -0,0 +1,56 @@
+/* Copyright (C) 1993-2017 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>
+
+/* Get the effective user ID of the calling process.  */
+uid_t
+__geteuid (void)
+{
+  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)