From: Eric Andersen <andersen@codepoet.org>
Date: Fri, 8 Oct 2004 08:14:58 +0000 (-0000)
Subject: Hiroshi Ito writes:
X-Git-Tag: 1_00~16
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=c00e11df856d280d7cff64aed78385e5f8be26bd;p=oweals%2Fbusybox.git

Hiroshi Ito writes:

ash
   "unset OLDPWD; cd -"  causes segmentation fault.
    ( OLDPWD is not set when sh is invoked from getty. )

patch against current CVS is attached.
---

diff --git a/shell/ash.c b/shell/ash.c
index f82a77258..a5929044b 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -2316,6 +2316,7 @@ cdcmd(int argc, char **argv)
 		dest = bltinlookup(homestr);
 	else if (dest[0] == '-' && dest[1] == '\0') {
 		dest = bltinlookup("OLDPWD");
+		if ( !dest ) goto out;
 		flags |= CD_PRINT;
 		goto step7;
 	}