1 files changed, 23 insertions, 0 deletions
diff --git a/sys/libc/cttyso.c b/sys/libc/cttyso.c
new file mode 100644
index 00000000..3283f83f
--- /dev/null
+++ b/sys/libc/cttyso.c
@@ -0,0 +1,23 @@
+/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+*/
+
+#define	import_spp
+#define	import_libc
+#define	import_xnames
+#include <iraf.h>
+
+
+/* C_TTYSO -- Turn standout mode (reverse video, underline, or upper case
+** depending on the device) on or off.
+*/
+void
+c_ttyso (
+  XINT	fd,			/* output file			*/
+  XINT	tty,			/* tty descriptor		*/
+  int	onoff			/* 1=on, 0=off			*/
+)
+{
+	XINT  x_fd = fd, x_tty = tty, x_onoff = onoff;
+
+	TTYSO (&x_fd, &x_tty, &x_onoff);
+}