1999-02-16 Roland McGrath <roland@baalperazim.frob.com>

* sysdeps/mach/hurd/revoke.c: New file.

diff --git a/sysdeps/mach/hurd/revoke.c b/sysdeps/mach/hurd/revoke.c
new file mode 100644 (file)
index 0000000..61b74a3
--- /dev/null
+++ b/sysdeps/mach/hurd/revoke.c
@@ -0,0 +1,40 @@
+/* Revoke the access of all descriptors currently open on a file.  Hurd version
+   Copyright (C) 1999 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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <unistd.h>
+#include <errno.h>
+#include <hurd.h>
+
+int
+revoke (file_name)
+     const char *file_name;
+{
+  error_t err;
+  file_t file = __file_name_lookup (file_name, 0, 0);
+
+  if (file == MACH_PORT_NULL)
+    return -1;
+
+  err = __io_revoke (file);
+  __mach_port_deallocate (__mach_task_self (), file);
+
+  if (err)
+    return __hurd_fail (err);
+  return 0;
+}