[FFmpeg-cvslog] sha: use AV_RB32() instead of assuming buffer can be cast to uint32_t*

[Kostya Shishkov]

ffmpeg | branch: master | Kostya Shishkov <kostya.shishkov at gmail.com> | Mon Jul  4 11:57:46 2011 +0200| [3e2aa268f652be8828b6351f54d41914c1ec3dae] | committer: Mans Rullgard

sha: use AV_RB32() instead of assuming buffer can be cast to uint32_t*

Signed-off-by: Mans Rullgard <mans at mansr.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3e2aa268f652be8828b6351f54d41914c1ec3dae
---

 libavutil/sha.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavutil/sha.c b/libavutil/sha.c
index ae6069d..5af742d 100644
--- a/libavutil/sha.c
+++ b/libavutil/sha.c
@@ -42,7 +42,7 @@ const int av_sha_size = sizeof(AVSHA);
 #define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
 
 /* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */
-#define blk0(i) (block[i] = av_be2ne32(((const uint32_t*)buffer)[i]))
+#define blk0(i) (block[i] = AV_RB32(buffer + 4 * (i)))
 #define blk(i)  (block[i] = rol(block[i-3] ^ block[i-8] ^ block[i-14] ^ block[i-16], 1))
 
 #define R0(v,w,x,y,z,i) z += ((w&(x^y))^y)     + blk0(i) + 0x5A827999 + rol(v, 5); w = rol(w, 30);
@@ -67,7 +67,7 @@ static void sha1_transform(uint32_t state[5], const uint8_t buffer[64])
     for (i = 0; i < 80; i++) {
         int t;
         if (i < 16)
-            t = av_be2ne32(((uint32_t*)buffer)[i]);
+            t = AV_RB32(buffer + 4 * i);
         else
             t = rol(block[i-3] ^ block[i-8] ^ block[i-14] ^ block[i-16], 1);
         block[i] = t;