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-rw-r--r--usr.sbin/rtadvd/rtadvd.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/usr.sbin/rtadvd/rtadvd.c b/usr.sbin/rtadvd/rtadvd.c
index 654f206..02e3dc7 100644
--- a/usr.sbin/rtadvd/rtadvd.c
+++ b/usr.sbin/rtadvd/rtadvd.c
@@ -667,14 +667,16 @@ rtadvd_input()
}
/*
- * If we happen to receive data on an interface which is now down,
- * just discard the data.
+ * If we happen to receive data on an interface which is now gone
+ * or down, just discard the data.
*/
- if ((iflist[pi->ipi6_ifindex]->ifm_flags & IFF_UP) == 0) {
+ if (iflist[pi->ipi6_ifindex] == NULL ||
+ (iflist[pi->ipi6_ifindex]->ifm_flags & IFF_UP) == 0) {
syslog(LOG_INFO,
"<%s> received data on a disabled interface (%s)",
__func__,
- if_indextoname(pi->ipi6_ifindex, ifnamebuf));
+ (iflist[pi->ipi6_ifindex] == NULL) ? "[gone]" :
+ if_indextoname(pi->ipi6_ifindex, ifnamebuf));
return;
}
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