rmtopen
if (rmtopen(tape, O_RDONLY) >= 0) {
while ((to = host ? rmtopen(tape, O_RDONLY) :
while ((to = host ? rmtopen(tape, O_WRONLY) :
rmtopen(tape, O_WRONLY) :
while ((to = host ? rmtopen(tape, O_RDONLY) :
extern int rmtopen(char *, int);
extern int rmtopen();
if ((mt = rmtopen(magtape, O_RDONLY)) < 0) {
if (rmtopen(magtape, O_RDONLY) >= 0) {
(mt = rmtopen(magtape, O_RDONLY)) == -1) ||
if ((host != NULL && (mt = rmtopen(magtape, O_RDONLY)) == -1) ||