encrypt_send_keyid
encrypt_send_keyid(TELNET_DIR_ENCRYPT,
encrypt_send_keyid(dir, kp->keyid, kp->keylen, 0);
void encrypt_send_keyid(int, unsigned char *, int, int);
encrypt_send_keyid(TELNET_DIR_ENCRYPT, (uchar_t *)"\0", 1, 1);
encrypt_send_keyid(dir, newkeyid, *keyidlen, 0);