if (has_feature("sha256", ct)) {
hash2_function((char *)crypt_buf, APC_CHALLENGE_SIZE, ct->challenge_hash);
hash2_to_asc(ct->challenge_hash, buf);
if (has_feature("sha256", ct)) {
hash2_function((char *)crypt_buf, APC_CHALLENGE_SIZE, ct->challenge_hash);
hash2_to_asc(ct->challenge_hash, buf);