1 files changed, 33 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/tcdrain.c b/sysdeps/unix/sysv/tcdrain.c
new file mode 100644
index 0000000000..37144799e4
--- /dev/null
+++ b/sysdeps/unix/sysv/tcdrain.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 1992 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 <errno.h>
+#include <stddef.h>
+#include <termios.h>
+#include <unistd.h>
+#include <sysv_termio.h>
+#include <sys/ioctl.h>
+
+/* Wait for pending output to be written on FD.  */
+int
+DEFUN(tcdrain, (fd), int fd)
+{
+  /* With an argument of 1, TCSBRK just waits for output to drain.  */
+  return __ioctl (fd, _TCSBRK, 1);
+}