From: Miek Gieben <miekg@NLnetLabs.nl>
Date: Thu, 2 Mar 2006 14:45:39 +0000 (+0000)
Subject: check for overlong labels
X-Git-Tag: release-1.1.0~330
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2b75b5e7d7efa71e7c3798a1e4e0044ba40147ad;p=thirdparty%2Fldns.git

check for overlong labels
---

diff --git a/wire2host.c b/wire2host.c
index f4c8766e..ab0b8753 100644
--- a/wire2host.c
+++ b/wire2host.c
@@ -111,6 +111,11 @@ ldns_wire2dname(ldns_rdf **dname, const uint8_t *wire, size_t max, size_t *pos)
 		uncompressed_length += label_size + 1;
 		dname_pos += label_size;
 		*pos = *pos + label_size;
+
+		if (dname_pos > LDNS_MAX_DOMAINLEN)  {
+			return LDNS_STATUS_DOMAINNAME_OVERFLOW;
+		}
+		
 		if (*pos < max) {
 			label_size = wire[*pos];
 		}