initial import

sysdeps/mach/hurd/truncate.c

@@ -0,0 +1,42 @@
+/* Copyright (C) 1991, 1992, 1993, 1994 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 <sys/types.h>
+#include <errno.h>
+#include <hurd.h>
+#include <fcntl.h>
+
+/* Truncate FILE_NAME to LENGTH bytes.  */
+int
+DEFUN(truncate, (file_name, length),
+      CONST char *file_name AND off_t length)
+{
+  error_t err;
+  file_t file = __file_name_lookup (file_name, O_WRITE, 0);
+
+  if (file == MACH_PORT_NULL)
+    return -1;
+
+  err = __file_truncate (file, length);
+  __mach_port_deallocate (__mach_task_self (), file);
+
+  if (err)
+    return __hurd_fail (err);
+  return 0;
+}