520 static void *compute_and(void *_dst, const void *_src, size_t n)  in compute_and()  argument
522 	uint8_t *dst = _dst;  in compute_and()
529 	return _dst;  in compute_and()
532 static void *compute_or(void *_dst, const void *_src, size_t n)  in compute_or()  argument
534 	uint8_t *dst = _dst;  in compute_or()
541 	return _dst;  in compute_or()
544 static void *compute_xor(void *_dst, const void *_src, size_t n)  in compute_xor()  argument
546 	uint8_t *dst = _dst;  in compute_xor()
553 	return _dst;  in compute_xor()
556 static void *compute_extend(void *_dst, const void *_src, size_t n)  in compute_extend()  argument
562 	sha1_update(&ctx, _dst, n);  in compute_extend()
565 	memcpy(_dst, digest, min(n, sizeof(digest)));  in compute_extend()
567 	return _dst;  in compute_extend()