gentoo-overlay/app-emulation/hercules/files/hercules-3.09-aliasing.patch

From 7d3255a18ad845953cc8083371e8623e771ad4f5 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Tue, 27 Aug 2013 12:25:49 -0400
Subject: [PATCH] sha: fix strict aliasing warnings

sha256.c:492:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
sha256.c:784:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
sha256.c:785:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
 crypto/sha256.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/crypto/sha256.c b/crypto/sha256.c
index 1a6a243..b1e90b4 100644
--- a/crypto/sha256.c
+++ b/crypto/sha256.c
@@ -489,7 +489,7 @@ SHA256_Final(u_int8_t digest[], SHA256_CTX *context)
    *context->buffer = 0x80;
   }
   /* Set the bit count: */
-  *(u_int64_t *)&context->buffer[SHA256_SHORT_BLOCK_LENGTH] = context->bitcount;
+  memcpy (&context->buffer[SHA256_SHORT_BLOCK_LENGTH], &context->bitcount, 8);
 
   /* Final transform: */
   SHA256_Transform(context, context->buffer);
@@ -781,8 +781,8 @@ SHA512_Last(SHA512_CTX *context)
   *context->buffer = 0x80;
  }
  /* Store the length of input data (in bits): */
- *(u_int64_t *)&context->buffer[SHA512_SHORT_BLOCK_LENGTH] = context->bitcount[1];
- *(u_int64_t *)&context->buffer[SHA512_SHORT_BLOCK_LENGTH+8] = context->bitcount[0];
+ memcpy (&context->buffer[SHA512_SHORT_BLOCK_LENGTH], &context->bitcount[1], 8);
+ memcpy (&context->buffer[SHA512_SHORT_BLOCK_LENGTH+8], context->bitcount[0], 8);
 
  /* Final transform: */
  SHA512_Transform(context, context->buffer);
-- 
1.8.3.2