From: Szabolcs Nagy <nsz@port70.net>
Date: Thu, 4 Sep 2014 10:03:08 +0000 (+0200)
Subject: test empty domain name with offset pointer in dn_expand-empty
X-Git-Url: http://nsz.repo.hu/git/?p=libc-test;a=commitdiff_plain;h=0e00fcbef7f1df040450d0e7a17862a8622de616

test empty domain name with offset pointer in dn_expand-empty
---

diff --git a/src/regression/dn_expand-empty.c b/src/regression/dn_expand-empty.c
index 130194c..b7287d8 100644
--- a/src/regression/dn_expand-empty.c
+++ b/src/regression/dn_expand-empty.c
@@ -5,15 +5,25 @@
 
 int main(void)
 {
-	unsigned char packet[] = "";
+	unsigned char packet[3] = "";
 	char name[] = "x";
 	int r;
 
+	/* empty name in packet */
 	r = dn_expand(packet, packet+1, packet, name, 1);
 	if (r!=1)
 		t_error("dn_expand(\"\", name, 1) returned %d, wanted 1\n", r);
 	if (name[0])
 		t_error("dn_expand(\"\", name, 1) failed: got \"%s\" name, wanted \"\"\n", name);
 
+	/* empty name with offset pointer in packet */
+	memcpy(packet, "\xc0\2", 3);
+	name[0] = 'x';
+	r = dn_expand(packet, packet+3, packet, name, 1);
+	if (r!=2)
+		t_error("dn_expand(\"\\xc0\\2\", name, 1) returned %d, wanted 1\n", r);
+	if (name[0])
+		t_error("dn_expand(\"\\xc0\\2\", name, 1) failed: got \"%s\" name, wanted \"\"\n", name);
+
 	return t_status;
 }