xz_crc32
uint32_t xz_crc32(const uint8_t *buf, size_t size, uint32_t crc);
s->crc32 = xz_crc32(b->out + s->out_start,
s->block.hash.crc32 = xz_crc32(
s->crc32 = xz_crc32(b->in + s->in_start, in_used, s->crc32);
s->index.hash.crc32 = xz_crc32(
if (xz_crc32(s->temp.buf + HEADER_MAGIC_SIZE, 2, 0)
if (xz_crc32(s->temp.buf + 4, 6, 0) != get_le32(s->temp.buf))
if (xz_crc32(s->temp.buf, s->temp.size, 0)