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Fix PPC SHA1 routine for large input buffers

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The PPC SHA1 routine had an overflow which meant that it gave
incorrect results for input buffers >= 512MB.  This fixes it by
ensuring that the update of the total length in bits is done using
64-bit arithmetic.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Paul Mackerras 2006-06-19 09:25:16 +10:00 committed by Junio C Hamano
parent 476a4dfc05
commit b47f509ba5
1 changed files with 1 additions and 1 deletions
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2
ppc/sha1.c
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@ -30,7 +30,7 @@ int SHA1_Update(SHA_CTX *c, const void *ptr, unsigned long n)
unsigned long nb;
const unsigned char *p = ptr;
c->len += n << 3;
c->len += (uint64_t) n << 3;
while (n != 0) {
if (c->cnt || n < 64) {
nb = 64 - c->cnt;