void ldisc_send(char *buf, int len)
void ldisc_send(char *buf, int len, int interactive)
void ldisc_send(char *buf, int len){    /*     * This is only here because of the calls to ldisc_send(NULL,     * 0) in ssh.c. Nothing in PSFTP actually needs to use the     * ldisc as an ldisc. So if we get called with any real data, I     * want to know about it.     */    assert(len == 0);}