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Fix bug where NULL pointer wasn't checked before dereferencing

This commit is contained in:
bgrayson 2000-01-17 07:21:54 +00:00
parent 417d43539a
commit 4760c9fa1b
1 changed files with 6 additions and 3 deletions
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9
sbin/mount_portal/pt_filter.c
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@ -1,4 +1,4 @@
/* $NetBSD: pt_filter.c,v 1.2 1999/08/17 15:05:15 kleink Exp $ */
/* $NetBSD: pt_filter.c,v 1.3 2000/01/17 07:21:54 bgrayson Exp $ */
/*
* Copyright (c) 1999 The NetBSD Foundation, Inc.
@ -39,7 +39,7 @@
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: pt_filter.c,v 1.2 1999/08/17 15:05:15 kleink Exp $");
__RCSID("$NetBSD: pt_filter.c,v 1.3 2000/01/17 07:21:54 bgrayson Exp $");
#endif /* not lint */
#include <stdio.h>
@ -130,7 +130,10 @@ portal_rfilter(pcr, key, v, kso, fdp)
* is equivalent to
* bogus1 rfilter bogus1/ cmd1 %s
*/
if (strlen(v[3]) == 0)
/*
* v[3] could be NULL, or could point to "".
*/
if (!v[3] || strlen(v[3]) == 0)
v[3] = "%s"; /* Handle above assumption. */
path = key;
/* Strip out stripkey if it matches leading part of key. */