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Fix PPC SHA1 routine for large input buffers
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>
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476a4dfc05
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b47f509ba5
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@ -30,7 +30,7 @@ int SHA1_Update(SHA_CTX *c, const void *ptr, unsigned long n)
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unsigned long nb;
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const unsigned char *p = ptr;
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c->len += n << 3;
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c->len += (uint64_t) n << 3;
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while (n != 0) {
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if (c->cnt || n < 64) {
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nb = 64 - c->cnt;
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