From 7f484866a20db7df608d7cfa9ab8e8bc089a5de8 Mon Sep 17 00:00:00 2001
From: Trevor Johnson <trevor@FreeBSD.org>
Date: Wed, 10 Jul 2002 06:57:44 +0000
Subject: MFC:  fix buffer overflows described in FreeBSD-SA-02:28.resolv.

Reviewed by:	imp
---
 lib/libc/net/getnetbydns.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'lib/libc/net/getnetbydns.c')

diff --git a/lib/libc/net/getnetbydns.c b/lib/libc/net/getnetbydns.c
index 087aa5f6b9bf..e1a11d2e5d3a 100644
--- a/lib/libc/net/getnetbydns.c
+++ b/lib/libc/net/getnetbydns.c
@@ -173,7 +173,9 @@ static	char *net_aliases[MAXALIASES], netbuf[PACKETSZ];
 			}
 			cp += n; 
 			*ap++ = bp;
-			bp += strlen(bp) + 1;
+			n = strlen(bp) + 1;
+			bp += n;
+			buflen -= n;
 			net_entry.n_addrtype =
 				(class == C_IN) ? AF_INET : AF_UNSPEC;
 			haveanswer++;
-- 
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