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authorPaul Eggert <eggert@cs.ucla.edu>2012-08-15 20:49:45 +0200
committerAndreas Jaeger <aj@suse.de>2012-08-15 20:49:45 +0200
commit02dcb6c5a240aa6c80ac55748a9ef88532427d06 (patch)
tree85be77143fae324da39c15ba39123dc9bac07c77 /crypt/sha512.c
parentbe75d758071ac8d87149c0e806fc96dd3d277696 (diff)
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Fix BZ#14090 - md5/sha512 with large sizes
Diffstat (limited to 'crypt/sha512.c')
-rw-r--r--crypt/sha512.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/crypt/sha512.c b/crypt/sha512.c
index 6e531c5..bec7bb3 100644
--- a/crypt/sha512.c
+++ b/crypt/sha512.c
@@ -1,6 +1,6 @@
/* Functions to compute SHA512 message digest of files or memory blocks.
according to the definition of SHA512 in FIPS 180-2.
- Copyright (C) 2007, 2011 Free Software Foundation, Inc.
+ Copyright (C) 2007-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -123,9 +123,10 @@ sha512_process_block (const void *buffer, size_t len, struct sha512_ctx *ctx)
#ifdef USE_TOTAL128
ctx->total128 += len;
#else
- ctx->total[TOTAL128_low] += len;
- if (ctx->total[TOTAL128_low] < len)
- ++ctx->total[TOTAL128_high];
+ uint64_t lolen = len;
+ ctx->total[TOTAL128_low] += lolen;
+ ctx->total[TOTAL128_high] += ((len >> 63 >> 1)
+ + (ctx->total[TOTAL128_low] < lolen));
#endif
/* Process all bytes in the buffer with 128 bytes in each round of