git-p4: Unset P4DIFF environment variable when using 'p4 -du diff'

diff --git a/mozilla-sha1/sha1.c b/mozilla-sha1/sha1.c
index 7f6fc05e06e30b2f7b3eda6015043f5ebcfd34c1..3f06b835675206912777a774d91c3ba611fa5a06 100644 (file)
--- a/mozilla-sha1/sha1.c
+++ b/mozilla-sha1/sha1.c
@@ -1,29 +1,29 @@
-/* 
+/*
  * The contents of this file are subject to the Mozilla Public
  * License Version 1.1 (the "License"); you may not use this file
  * except in compliance with the License. You may obtain a copy of
  * the License at http://www.mozilla.org/MPL/
- * 
+ *
  * Software distributed under the License is distributed on an "AS
  * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
  * implied. See the License for the specific language governing
  * rights and limitations under the License.
- * 
+ *
  * The Original Code is SHA 180-1 Reference Implementation (Compact version)
- * 
+ *
  * The Initial Developer of the Original Code is Paul Kocher of
- * Cryptography Research.  Portions created by Paul Kocher are 
+ * Cryptography Research.  Portions created by Paul Kocher are
  * Copyright (C) 1995-9 by Cryptography Research, Inc.  All
  * Rights Reserved.
- * 
+ *
  * Contributor(s):
  *
  *     Paul Kocher
- * 
+ *
  * Alternatively, the contents of this file may be used under the
  * terms of the GNU General Public License Version 2 or later (the
- * "GPL"), in which case the provisions of the GPL are applicable 
- * instead of those above.  If you wish to allow use of your 
+ * "GPL"), in which case the provisions of the GPL are applicable
+ * instead of those above.  If you wish to allow use of your
  * version of this file only under the terms of the GPL and not to
  * allow others to use your version of this file under the MPL,
  * indicate your decision by deleting the provisions above and
@@ -56,8 +56,8 @@ void SHA1_Init(SHA_CTX *ctx) {
 }
 
 
-void SHA1_Update(SHA_CTX *ctx, void *_dataIn, int len) {
-  unsigned char *dataIn = _dataIn;
+void SHA1_Update(SHA_CTX *ctx, const void *_dataIn, int len) {
+  const unsigned char *dataIn = _dataIn;
   int i;
 
   /* Read the data into W and process blocks as they get full
@@ -149,4 +149,3 @@ static void shaHashBlock(SHA_CTX *ctx) {
   ctx->H[3] += D;
   ctx->H[4] += E;
 }
-