rmtopen
return rmtopen(path, oflags);
int rmtopen(char *tape, int mode);
int rmtopen(char *tape, int mode);
int rmtopen(char *tape, int mode);
while (rmtopen(tape, O_RDONLY) < 0)
while ((tapefd = (host ? rmtopen(tape, O_WRONLY|O_CREAT) :
int rmtopen(char *, int);
mt = rmtopen(magtape, O_RDONLY);
mt = rmtopen(magtape, O_RDONLY);