From 5628820aad1597d6c95795148f19b1e219c2967f Mon Sep 17 00:00:00 2001
From: tkusumi <tkusumi@NetBSD.org>
Date: Wed, 4 May 2022 11:27:54 +0000
Subject: [PATCH] usr.sbin/autofs: Fix absolute path when creating a mountpoint

taken-from freebsd 63640b2f552c0476f50484635eb9888eafcd22dc
---
 usr.sbin/autofs/automount.c | 14 ++------------
 usr.sbin/autofs/common.c    |  6 +++---
 2 files changed, 5 insertions(+), 15 deletions(-)

diff --git a/usr.sbin/autofs/automount.c b/usr.sbin/autofs/automount.c
index d269775cbc97..0e6a93f44b8f 100644
--- a/usr.sbin/autofs/automount.c
+++ b/usr.sbin/autofs/automount.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: automount.c,v 1.3 2018/01/15 14:38:06 christos Exp $	*/
+/*	$NetBSD: automount.c,v 1.4 2022/05/04 11:27:54 tkusumi Exp $	*/
 
 /*-
  * Copyright (c) 2017 The NetBSD Foundation, Inc.
@@ -34,7 +34,7 @@
  * SUCH DAMAGE.
  */
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: automount.c,v 1.3 2018/01/15 14:38:06 christos Exp $");
+__RCSID("$NetBSD: automount.c,v 1.4 2022/05/04 11:27:54 tkusumi Exp $");
 
 #include <sys/types.h>
 #include <sys/mount.h>
@@ -83,18 +83,8 @@ mount_autofs(const char *from, const char *fspath, const char *options,
 {
 	struct autofs_args args;
 	int error;
-	char *cwd;
 
-	/*
-	 * There is no guarantee we are at /, so chdir to /.
-	 */
-	cwd = getcwd(NULL, 0);
-	if (chdir("/") != 0)
-		log_warn("failed to chdir to /");
 	create_directory(fspath);
-	if (chdir(cwd) != 0)
-		log_warn("failed to restore cwd");
-	free(cwd);
 
 	log_debugx("mounting %s on %s, prefix \"%s\", options \"%s\"",
 	    from, fspath, prefix, options);
diff --git a/usr.sbin/autofs/common.c b/usr.sbin/autofs/common.c
index cb82e44383c0..5eea6dbf3d8e 100644
--- a/usr.sbin/autofs/common.c
+++ b/usr.sbin/autofs/common.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: common.c,v 1.4 2021/09/14 20:40:55 rillig Exp $	*/
+/*	$NetBSD: common.c,v 1.5 2022/05/04 11:27:54 tkusumi Exp $	*/
 
 /*-
  * Copyright (c) 2017 The NetBSD Foundation, Inc.
@@ -36,7 +36,7 @@
  * $FreeBSD: head/usr.sbin/autofs/common.c 303527 2016-07-30 01:10:05Z bapt $
  */
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: common.c,v 1.4 2021/09/14 20:40:55 rillig Exp $");
+__RCSID("$NetBSD: common.c,v 1.5 2022/05/04 11:27:54 tkusumi Exp $");
 
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -132,7 +132,7 @@ create_directory(const char *path)
 	 */
 	copy = tofree = checked_strdup(path + 1);
 
-	partial = checked_strdup("");
+	partial = checked_strdup("/");
 	for (;;) {
 		component = strsep(&copy, "/");
 		if (component == NULL)