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add sanity check on in6_ifaddr.

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itojun 2000-06-13 04:35:29 +00:00
parent ded9898d88
commit 36887242d7
1 changed files with 10 additions and 3 deletions
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13
sys/netinet6/nd6_rtr.c
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@ -1,5 +1,5 @@
/* $NetBSD: nd6_rtr.c,v 1.16 2000/06/13 02:54:11 itojun Exp $ */
/* $KAME: nd6_rtr.c,v 1.39 2000/06/13 02:50:43 itojun Exp $ */
/* $NetBSD: nd6_rtr.c,v 1.17 2000/06/13 04:35:29 itojun Exp $ */
/* $KAME: nd6_rtr.c,v 1.40 2000/06/13 03:02:29 jinmei Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@ -1233,8 +1233,15 @@ in6_ifadd(ifp, in6, addr, prefixlen)
for( ; oia->ia_next; oia = oia->ia_next)
continue;
oia->ia_next = ia;
} else
} else {
/*
* This should be impossible, since we have at least one
* link-local address (see the beginning of this function).
* XXX: should we rather panic here?
*/
printf("in6_ifadd: in6_ifaddr is NULL (impossible!)\n");
in6_ifaddr = ia;
}
/* gain a refcnt for the link from in6_ifaddr */
IFAREF((struct ifaddr *)ia);