From: Michael Brown <mcb30@etherboot.org>
Date: Wed, 31 Jan 2007 03:42:47 +0000 (+0000)
Subject: ...but not when it's being used as a digest algorithm...
X-Git-Tag: v0.9.3~486
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1fbd6f7d76446bd5ebb36943fc7b7f76d2c20a14;p=thirdparty%2Fipxe.git

...but not when it's being used as a digest algorithm...
---

diff --git a/src/crypto/crypto_null.c b/src/crypto/crypto_null.c
index dda59ea5d..9a2ea996a 100644
--- a/src/crypto/crypto_null.c
+++ b/src/crypto/crypto_null.c
@@ -37,12 +37,14 @@ static int null_setkey ( void *ctx __unused, void *key __unused,
 
 static void null_encode ( void *ctx __unused, const void *src,
 			  void *dst, size_t len ) {
-	memcpy ( dst, src, len );
+	if ( dst )
+		memcpy ( dst, src, len );
 }
 
 static void null_decode ( void *ctx __unused, const void *src,
 			  void *dst, size_t len ) {
-	memcpy ( dst, src, len );
+	if ( dst )
+		memcpy ( dst, src, len );
 }
 
 static void null_final ( void *ctx __unused, void *out __unused ) {