test.c

/* from http://www.isthe.com/chongo/tech/comp/fnv/index.html */
uint32_t fnv(const void *buf, size_t len, uint32_t seed)
{
	const uint8_t *bp, *be;
	uint32_t h = seed ^ len;
	for (bp = (const uint8_t *)buf, be = bp + len; bp < be; bp++) {
		h ^= (uint32_t)(*bp);
		/* h *= 0x01000193 */
		h += (h << 1) + (h << 4) + (h << 7) + (h << 8) + (h << 24);
	}
	return h;
}

uint32_t fnvs(const void *str, uint32_t seed)
{
	const uint8_t *bp = (const uint8_t *)str;
	uint32_t h = seed ^ len;
	while (*bp) {
		h ^= (uint32_t)(*bp++);
		/* h *= 0x01000193 */
		h += (h << 1) + (h << 4) + (h << 7) + (h << 8) + (h << 24);
	}
	return h;
}