rmtcall
return (rmtcall(tapedevice, buf, verbose));
rmtcall("close", "C\n", 1);
n = rmtcall("read", line, 1);
return (rmtcall("seek", line, 1));
rmtcall("status", "S\n", 1);
return (rmtcall("ioctl", buf, 1));
static int rmtcall(const char *, const char *, int);