From d82158a7e001222b1a02dc1bb22a776d25040970 Mon Sep 17 00:00:00 2001
From: bde <bde@FreeBSD.org>
Date: Mon, 26 Dec 1994 13:02:05 +0000
Subject: Obtained from: partly from 1.1.5

Convert "" to "." for "cd" and "cd ''".  chdir("") is required to fail
on POSIX systems.
---
 bin/sh/cd.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'bin/sh')

diff --git a/bin/sh/cd.c b/bin/sh/cd.c
index 29bc1fd..ac44069 100644
--- a/bin/sh/cd.c
+++ b/bin/sh/cd.c
@@ -33,7 +33,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: cd.c,v 1.2 1994/09/24 02:57:24 davidg Exp $
+ *	$Id: cd.c,v 1.3 1994/11/06 01:29:26 jkh Exp $
  */
 
 #ifndef lint
@@ -88,6 +88,8 @@ cdcmd(argc, argv)  char **argv; {
 	nextopt(nullstr);
 	if ((dest = *argptr) == NULL && (dest = bltinlookup("HOME", 1)) == NULL)
 		error("HOME not set");
+	if (*dest == '\0')
+		dest = ".";
 	if (dest[0] == '-' && dest[1] == '\0') {
 		dest = prevdir ? prevdir : curdir;
 		print = 1;
@@ -220,7 +222,7 @@ top:
 	STPUTC('\0', p);
 	p = grabstackstr(p);
 	INTOFF;
-	if (chdir(p) < 0) {
+	if (chdir(*p ? p : ".") < 0) {
 		INTON;
 		return -1;
 	}
-- 
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