int
rmtopen(char *tape, int mode)
{
struct mtget mt;
char buf[256];
int fd;
(void) snprintf(buf, sizeof (buf), "O%s\n%d\n", tape, mode);
rmtstate = TS_OPEN;
fd = rmtcall(tape, buf);
if (fd != -1) {
/* see if the rmt server supports the extended protocol */
rmtversion = rmtioctl(-1, 0);
/*
* Some rmt daemons apparently close the connection
* when they get a bogus ioctl. See 1210852 (ignore
* the evaluation). Make sure we can still talk to
* the device, re-opening it if necessary.
*/
if (rmtversion < 1) {
if (rmtstatus(&mt) < 0) {
rmtclose();
rmtgetconn();
rmtversion = 0;
}
}
}
return (fd);
}
struct mtget *
_rmtstatus(int fd)
{
static struct mtget mt_status;
#ifdef RMT
if (host)
return rmtstatus();
#endif
if (ioctl(fd, MTIOCGET, &mt_status) < 0)
err(2, "ioctl MTIOCGET");
return &mt_status;
}
