diff options
Diffstat (limited to 'crypto/openssh/openbsd-compat/port-tun.c')
| -rw-r--r-- | crypto/openssh/openbsd-compat/port-tun.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/crypto/openssh/openbsd-compat/port-tun.c b/crypto/openssh/openbsd-compat/port-tun.c index ddc92d0..0d756f7 100644 --- a/crypto/openssh/openbsd-compat/port-tun.c +++ b/crypto/openssh/openbsd-compat/port-tun.c @@ -173,9 +173,11 @@ sys_tun_open(int tun, int mode) if (ioctl(sock, SIOCGIFFLAGS, &ifr) == -1) goto failed; - ifr.ifr_flags |= IFF_UP; - if (ioctl(sock, SIOCSIFFLAGS, &ifr) == -1) - goto failed; + if ((ifr.ifr_flags & IFF_UP) == 0) { + ifr.ifr_flags |= IFF_UP; + if (ioctl(sock, SIOCSIFFLAGS, &ifr) == -1) + goto failed; + } close(sock); return (fd); |
