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-rw-r--r--REORG.TODO/sysdeps/mach/hurd/group_member.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/group_member.c b/REORG.TODO/sysdeps/mach/hurd/group_member.c
new file mode 100644
index 0000000000..a0fc359fe6
--- /dev/null
+++ b/REORG.TODO/sysdeps/mach/hurd/group_member.c
@@ -0,0 +1,54 @@
+/* `group_member' -- test if process is in a given group.  Hurd version.
+   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>
+
+int
+__group_member (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)