tun_open
if ((fd = tun_open(local_tun, tun_mode, &ifname)) == -1) {
if (options.tun_open == SSH_TUNMODE_POINTOPOINT)
int tun_open(int, int, char **);
intptr = &options->tun_open;
options->tun_open = -1;
if (options->tun_open == -1)
options->tun_open = SSH_TUNMODE_NO;
dump_cfg_fmtint(oTunnel, o->tun_open);
options->tun_open = SSH_TUNMODE_NO;
int tun_open; /* tun(4) */
sock = tun_open(tun, mode, &ifname);
if (options.tun_open != SSH_TUNMODE_NO) {
options.tun_open, options.tun_local,
if (options.tun_open == -1)
options.tun_open = SSH_TUNMODE_DEFAULT;
if (options.tun_open != SSH_TUNMODE_NO) {
options.tun_open = SSH_TUNMODE_NO;
if(tun_open(&t_laddr, to_point)) {