From 69d93c899a581d9f7bd6be332088c4514d15adcc Mon Sep 17 00:00:00 2001
From: Sam Leffler <sam@FreeBSD.org>
Date: Wed, 23 Feb 2005 22:44:38 +0000
Subject: [PATCH] avoid potential null ptr derefs

Noticed by:	Coverity Prevent analysis tool
---
 sys/netncp/ncp_nls.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/sys/netncp/ncp_nls.c b/sys/netncp/ncp_nls.c
index 6a8b57304e7f..bb746fc1474f 100644
--- a/sys/netncp/ncp_nls.c
+++ b/sys/netncp/ncp_nls.c
@@ -37,6 +37,7 @@ __FBSDID("$FreeBSD$");
 
 #include <sys/param.h>
 #include <sys/errno.h>
+#include <sys/systm.h>
 
 #include <netncp/ncp.h>
 #include <netncp/ncp_nls.h>
@@ -245,7 +246,11 @@ ncp_pathcopy(const char *src, char *dst, int len, struct ncp_nlstables *nt)
 	u_char	c;
 /*	char *d = dst, *s = src;*/
 
-	donls = (nt && (nt->opt & NWHP_NLS));
+	if (nt == NULL) {
+		ovbcopy(src, dst, len);
+		return;
+	}
+	donls = (nt->opt & NWHP_NLS);
 	if ((nt->opt & (NWHP_UPPER | NWHP_LOWER)) == 0) {
 		while (len--) {
 			*dst = donls ? nt->u2n[(u_char)*src] : *src;
@@ -280,7 +285,11 @@ ncp_path2unix(char *src, char *dst, int len, struct ncp_nlstables *nt) {
 /*	char *d = dst, *s = src;*/
 
 /*	printf("toux(%02x): %s:",nt->opt, s);*/
-	donls = (nt && (nt->opt & NWHP_NLS));
+	if (nt == NULL) {
+		ovbcopy(src, dst, len);
+		return;
+	}
+	donls = (nt->opt & NWHP_NLS);
 	if ((nt->opt & (NWHP_UPPER | NWHP_LOWER)) == 0) {
 		while (len--) {
 			c = *src;