1 files changed, 35 insertions, 0 deletions
diff --git a/sysdeps/generic/unlockpt.c b/sysdeps/generic/unlockpt.c
new file mode 100644
index 0000000000..c5c4890f59
--- /dev/null
+++ b/sysdeps/generic/unlockpt.c
@@ -0,0 +1,35 @@
+/* Copyright (C) 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
+
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stdlib.h>
+#include <errno.h>
+
+/* Given a fd on a master pseudoterminal, clear a kernel lock so that
+   the slave can be opened.  This is to avoid a race between opening the
+   master and calling grantpt() to take possession of the slave. */
+int
+unlockpt (fd)
+     int fd __attribute__ ((unused));
+{
+  __set_errno (ENOSYS);
+  return -1;
+}
+
+stub_warning (unlockpt)
+#include <stub-tag.h>