ObjFW  Diff

- (void)updateWithBuffer: (const char*)buf
		  ofSize: (size_t)size
{
	if (size == 0)
		return;

	if (isCalculated)
		@throw [OFHashAlreadyCalculatedException newWithClass: isa];
		@throw [OFHashAlreadyCalculatedException newWithClass: isa
								 hash: self];

	sha1_update(state, &count, buffer, buf, size);
}

- (uint8_t*)digest
{
	size_t i;