emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

md5/sha512: a better fix for strict aliasing warnings

Browse Source 
The locations *are* well-aligned for direct stores
on any architecture.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2013-06-27 01:03:19 +02:00
parent f6205c6ab7
commit 1f5e81f8f8
2 changed files with 4 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
libbb/hash_md5_sha.c
View File

@@ -84,7 +84,7 @@ static void FAST_FUNC common64_end(md5_ctx_t *ctx, int swap_needed)
if (swap_needed)
t = bb_bswap_64(t);
/* wbuffer is suitably aligned for this */
memcpy(&ctx->wbuffer[64 - 8], &t, sizeof(t));
*(bb__aliased_uint64_t *) (&ctx->wbuffer[64 - 8]) = t;
}
ctx->process_block(ctx);
if (remaining >= 8)
@@ -883,10 +883,10 @@ void FAST_FUNC sha512_end(sha512_ctx_t *ctx, void *resbuf)
uint64_t t;
t = ctx->total64[0] << 3;
t = SWAP_BE64(t);
memcpy(&ctx->wbuffer[128 - 8], &t, sizeof(t));
*(bb__aliased_uint64_t *) (&ctx->wbuffer[128 - 8]) = t;
t = (ctx->total64[1] << 3) | (ctx->total64[0] >> 61);
t = SWAP_BE64(t);
memcpy(&ctx->wbuffer[128 - 16], &t, sizeof(t));
*(bb__aliased_uint64_t *) (&ctx->wbuffer[128 - 16]) = t;
}
sha512_process_block128(ctx);
if (remaining >= 16)