From a8d10b60d4df3820e4f348447da35ab9589095b7 Mon Sep 17 00:00:00 2001
From: Keith Bostic <bostic@ucbvax.Berkeley.EDU>
Date: Sun, 5 May 1991 20:19:59 -0800
Subject: [PATCH] date and time created 91/05/05 13:19:59 by bostic

SCCS-vsn: sys/stand.att/close.c 7.1
---
 usr/src/sys/stand.att/close.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 usr/src/sys/stand.att/close.c

diff --git a/usr/src/sys/stand.att/close.c b/usr/src/sys/stand.att/close.c
new file mode 100644
index 0000000000..f3d1ecf693
--- /dev/null
+++ b/usr/src/sys/stand.att/close.c
@@ -0,0 +1,30 @@
+/*-
+ * Copyright (c) 1982, 1988 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * %sccs.include.proprietary.c%
+ *
+ *	@(#)close.c	7.1 (Berkeley) %G%
+ */
+
+#include <sys/param.h>
+#include "saio.h"
+
+close(fdesc)
+	int fdesc;
+{
+#ifndef SMALL
+	struct iob *file;
+
+	fdesc -= 3;
+	if (fdesc < 0 || fdesc >= SOPEN_MAX ||
+	    ((file = &iob[fdesc])->i_flgs&F_ALLOC) == 0) {
+		errno = EBADF;
+		return (-1);
+	}
+	if ((file->i_flgs&F_FILE) == 0)
+		devclose(file);
+	file->i_flgs = 0;
+#endif
+	return (0);
+}
-- 
2.20.1