about summary refs log tree commit diff
path: root/REORG.TODO/sysdeps/unix/bsd/unlockpt.c
diff options
context:
space:
mode:
Diffstat (limited to 'REORG.TODO/sysdeps/unix/bsd/unlockpt.c')
-rw-r--r--REORG.TODO/sysdeps/unix/bsd/unlockpt.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/bsd/unlockpt.c b/REORG.TODO/sysdeps/unix/bsd/unlockpt.c
new file mode 100644
index 0000000000..7388c98523
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/bsd/unlockpt.c
@@ -0,0 +1,36 @@
+/* Copyright (C) 1998-2017 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <paths.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+/* Unlock the slave pseudo terminal associated with the master pseudo
+   terminal specified by FD.  */
+int
+unlockpt (int fd)
+{
+  char buf[sizeof (_PATH_TTY) + 2];
+
+  /* BSD doesn't have a lock, but it does have `revoke'.  */
+  if (__ptsname_r (fd, buf, sizeof (buf)))
+    return -1;
+  return revoke (buf);
+}