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Fix BZ#14090 - md5/sha512 with large sizes

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This commit is contained in:
Paul Eggert
2012-08-15 20:49:45 +02:00
committed by Andreas Jaeger
parent be75d75807
commit 02dcb6c5a2
3 changed files with 17 additions and 9 deletions
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9
crypt/sha512.c
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@ -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