From 8610f496a7d1b4e50122fe9538921934411d84ba Mon Sep 17 00:00:00 2001
From: jtc <jtc@NetBSD.org>
Date: Thu, 7 Nov 1996 05:37:34 +0000
Subject: [PATCH] New __errno() function, returns the address of the errno
 variable.

---
 lib/libc/gen/Makefile.inc |  4 ++--
 lib/libc/gen/_errno.c     | 47 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+), 2 deletions(-)
 create mode 100644 lib/libc/gen/_errno.c

diff --git a/lib/libc/gen/Makefile.inc b/lib/libc/gen/Makefile.inc
index 981a89dca2d1..06ec020db939 100644
--- a/lib/libc/gen/Makefile.inc
+++ b/lib/libc/gen/Makefile.inc
@@ -1,10 +1,10 @@
-#	$NetBSD: Makefile.inc,v 1.74 1996/10/16 17:53:44 perry Exp $
+#	$NetBSD: Makefile.inc,v 1.75 1996/11/07 05:37:34 jtc Exp $
 #	@(#)Makefile.inc	8.3 (Berkeley) 4/16/94
 
 # gen sources
 .PATH: ${.CURDIR}/arch/${MACHINE_ARCH}/gen ${.CURDIR}/gen
 
-SRCS+=	alarm.c assert.c clock.c closedir.c confstr.c ctermid.c \
+SRCS+=	_errno.c alarm.c assert.c clock.c closedir.c confstr.c ctermid.c \
 	ctype_.c daemon.c devname.c disklabel.c err.c errx.c errlist.c \
 	errno.c execl.c execle.c execlp.c execv.c execvp.c fnmatch.c fstab.c \
 	ftok.c fts.c getbsize.c getcap.c \
diff --git a/lib/libc/gen/_errno.c b/lib/libc/gen/_errno.c
new file mode 100644
index 000000000000..4eb7d6200d29
--- /dev/null
+++ b/lib/libc/gen/_errno.c
@@ -0,0 +1,47 @@
+/*	$NetBSD: _errno.c,v 1.1 1996/11/07 05:37:34 jtc Exp $	*/
+
+/*-
+ * Copyright (c) 1996 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by J.T. Conklin.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *        This product includes software developed by the NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <errno.h>
+
+#undef errno
+
+int *
+__errno()
+{
+	return &errno;
+}