From: W.C.A. Wijngaards <wouter@nlnetlabs.nl>
Date: Mon, 2 Mar 2015 14:31:57 +0000 (+0100)
Subject: Fix out of bounds error on parse of b64 with invalid characters.
X-Git-Tag: release-1.7.0-rc1~102
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=87c77a7350977dcb8c04dceedf7e78171f4d4589;p=thirdparty%2Fldns.git

Fix out of bounds error on parse of b64 with invalid characters.
---

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;
 	}