From 9ac81649d3523ee0c21005029f3f6173473e69d7 Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Wed, 20 Jan 2016 16:24:22 +0000
Subject: Another fix to punycode

---
 contrib/librdns/packet.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'contrib')

diff --git a/contrib/librdns/packet.c b/contrib/librdns/packet.c
index 6ce3f50fa..c07418604 100644
--- a/contrib/librdns/packet.c
+++ b/contrib/librdns/packet.c
@@ -129,9 +129,9 @@ rdns_format_dns_name (struct rdns_resolver *resolver, const char *in,
 	}
 
 	/* We need to encode */
-
 	p = in;
-	olen = inlen + 1 + sizeof ("xn--") * labels;
+	/* We allocate 4 times more memory as we cannot guarantee encoding bounds */
+	olen = inlen * sizeof (guint32) + 1 + sizeof ("xn--") * labels;
 	*out = malloc (olen + 1);
 
 	if (*out == NULL) {
-- 
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