From 87c77a7350977dcb8c04dceedf7e78171f4d4589 Mon Sep 17 00:00:00 2001
From: "W.C.A. Wijngaards" <wouter@nlnetlabs.nl>
Date: Mon, 2 Mar 2015 15:31:57 +0100
Subject: [PATCH] Fix out of bounds error on parse of b64 with invalid
 characters.

---
 compat/b64_pton.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/compat/b64_pton.c b/compat/b64_pton.c
index abe32819..18d8c8e9 100644
--- a/compat/b64_pton.c
+++ b/compat/b64_pton.c
@@ -118,15 +118,16 @@ static const char Pad64 = '=';
  */
 
 int
-ldns_b64_pton(char const *src, uint8_t *target, size_t targsize)
+ldns_b64_pton(char const *origsrc, uint8_t *target, size_t targsize)
 {
+	unsigned char const* src = (unsigned char*)origsrc;
 	int tarindex, state, ch;
 	char *pos;
 
 	state = 0;
 	tarindex = 0;
 
-	if (strlen(src) == 0) {
+	if (strlen(origsrc) == 0) {
 		return 0;
 	}
 
-- 
2.47.3