From: Ulrich Drepper <drepper@gmail.com>
Date: Sat, 2 Jul 2011 17:03:53 +0000 (-0400)
Subject: Fix last patch for big-endian machines
X-Git-Tag: upstream/2.30~12256
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=feea4948bca7e442edad3f995696f33450549e80;p=external%2Fglibc.git

Fix last patch for big-endian machines
---

diff --git a/crypt/sha256.c b/crypt/sha256.c
index 0ca3355..1a3aca6 100644
--- a/crypt/sha256.c
+++ b/crypt/sha256.c
@@ -224,9 +224,11 @@ __sha256_finish_ctx (ctx, resbuf)
 #ifdef _STRING_ARCH_unaligned
   *(uint64_t *)  &ctx->buffer[bytes + pad] = SWAP64 (ctx->total64 << 3);
 #else
-  *(uint32_t *) &ctx->buffer[bytes + pad + 4] = SWAP (ctx->total[0] << 3);
-  *(uint32_t *) &ctx->buffer[bytes + pad] = SWAP ((ctx->total[1] << 3) |
-						  (ctx->total[0] >> 29));
+  *(uint32_t *) &ctx->buffer[bytes + pad + 4]
+    = SWAP (ctx->total[TOTAL64_low] << 3);
+  *(uint32_t *) &ctx->buffer[bytes + pad]
+    = SWAP ((ctx->total[TOTAL64_high] << 3) |
+	    (ctx->total[TOTAL64_low] >> 29));
 #endif
 
   /* Process last bytes.  */
diff --git a/crypt/sha256.h b/crypt/sha256.h
index fcf6148..0457bfa 100644
--- a/crypt/sha256.h
+++ b/crypt/sha256.h
@@ -24,6 +24,7 @@
 #include <limits.h>
 #include <stdint.h>
 #include <stdio.h>
+#include <endian.h>
 
 
 /* Structure to save state of computation between the single steps.  */
@@ -34,6 +35,8 @@ struct sha256_ctx
   union
   {
     uint64_t total64;
+#define TOTAL64_low (1 - (BYTE_ORDER == LITTLE_ENDIAN))
+#define TOTAL64_high (BYTE_ORDER == LITTLE_ENDIAN)
     uint32_t total[2];
   };
   uint32_t buflen;
diff --git a/crypt/sha512.c b/crypt/sha512.c
index 16b4877..60a7ca5 100644
--- a/crypt/sha512.c
+++ b/crypt/sha512.c
@@ -124,9 +124,9 @@ sha512_process_block (const void *buffer, size_t len, struct sha512_ctx *ctx)
 #ifdef USE_TOTAL128
   ctx->total128 += len;
 #else
-  ctx->total[0] += len;
-  if (ctx->total[0] < len)
-    ++ctx->total[1];
+  ctx->total[TOTAL128_low] += len;
+  if (ctx->total[TOTAL128_low] < len)
+    ++ctx->total[TOTAL128_high];
 #endif
 
   /* Process all bytes in the buffer with 128 bytes in each round of
@@ -244,18 +244,20 @@ __sha512_finish_ctx (ctx, resbuf)
 #ifdef USE_TOTAL128
   ctx->total128 += bytes;
 #else
-  ctx->total[0] += bytes;
-  if (ctx->total[0] < bytes)
-    ++ctx->total[1];
+  ctx->total[TOTAL128_low] += bytes;
+  if (ctx->total[TOTAL128_low] < bytes)
+    ++ctx->total[TOTAL128_high];
 #endif
 
   pad = bytes >= 112 ? 128 + 112 - bytes : 112 - bytes;
   memcpy (&ctx->buffer[bytes], fillbuf, pad);
 
   /* Put the 128-bit file length in *bits* at the end of the buffer.  */
-  *(uint64_t *) &ctx->buffer[bytes + pad + 8] = SWAP (ctx->total[0] << 3);
-  *(uint64_t *) &ctx->buffer[bytes + pad] = SWAP ((ctx->total[1] << 3) |
-						  (ctx->total[0] >> 61));
+  *(uint64_t *) &ctx->buffer[bytes + pad + 8]
+    = SWAP (ctx->total[TOTAL128_low] << 3);
+  *(uint64_t *) &ctx->buffer[bytes + pad]
+    = SWAP ((ctx->total[TOTAL128_high] << 3) |
+	    (ctx->total[TOTAL128_low] >> 61));
 
   /* Process last bytes.  */
   sha512_process_block (ctx->buffer, bytes + pad + 16, ctx);
diff --git a/crypt/sha512.h b/crypt/sha512.h
index 90e55dc..d98a2fc 100644
--- a/crypt/sha512.h
+++ b/crypt/sha512.h
@@ -24,9 +24,8 @@
 #include <limits.h>
 #include <stdint.h>
 #include <stdio.h>
-#ifdef _LIBC
-# include <bits/wordsize.h>
-#endif
+#include <endian.h>
+#include <bits/wordsize.h>
 
 
 /* Structure to save state of computation between the single steps.  */
@@ -40,6 +39,13 @@ struct sha512_ctx
 # define USE_TOTAL128
     unsigned int total128 __attribute__ ((__mode__ (TI)));
 #endif
+#if BYTE_ORDER == LITTLE_ENDIAN
+# define TOTAL128_low 0
+# define TOTAL128_high 1
+#else
+# define TOTAL128_low 1
+# define TOTAL128_high 0
+#endif
     uint64_t total[2];
   };
   uint64_t buflen;