diff options
| -rw-r--r-- | sys/net/rtsock.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sys/net/rtsock.c b/sys/net/rtsock.c index 84f38d6..2de17fa 100644 --- a/sys/net/rtsock.c +++ b/sys/net/rtsock.c @@ -424,8 +424,14 @@ route_output(m, so) /* new gateway could require new ifaddr, ifp; flags may also be different; ifp may be specified by ll sockaddr when protocol address is ambiguous */ - if ((error = rt_getifa(&info)) != 0) - senderr(error); +#define equal(a1, a2) (bcmp((caddr_t)(a1), (caddr_t)(a2), (a1)->sa_len) == 0) + if ((rt->rt_flags & RTF_GATEWAY && gate != NULL) || + ifpaddr != NULL || + (ifaaddr != NULL && + !equal(ifaaddr, rt->rt_ifa->ifa_addr))) { + if ((error = rt_getifa(&info)) != 0) + senderr(error); + } if (gate != NULL && (error = rt_setgate(rt, rt_key(rt), gate)) != 0) senderr(error); |
