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Fix two cases where ia->ia_ifp could be NULL.

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This commit is contained in:
Poul-Henning Kamp 1996-04-02 12:26:10 +00:00
parent 5cc7c95375
commit 7e6f7714ce
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=14998
1 changed files with 4 additions and 2 deletions
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6
sys/netinet/ip_icmp.c
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@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)ip_icmp.c 8.2 (Berkeley) 1/4/94
* $Id: ip_icmp.c,v 1.17 1995/12/16 02:14:16 bde Exp $
* $Id: ip_icmp.c,v 1.18 1996/03/26 19:16:43 fenner Exp $
*/
#include <sys/param.h>
@ -402,6 +402,8 @@ icmp_input(m, hlen)
(struct sockaddr *)&icmpdst, m->m_pkthdr.rcvif);
if (ia == 0)
break;
if (ia->ia_ifp == 0)
break;
icp->icmp_type = ICMP_MASKREPLY;
icp->icmp_mask = ia->ia_sockmask.sin_addr.s_addr;
if (ip->ip_src.s_addr == 0) {
@ -503,7 +505,7 @@ icmp_reflect(m)
for (ia = in_ifaddr; ia; ia = ia->ia_next) {
if (t.s_addr == IA_SIN(ia)->sin_addr.s_addr)
break;
if ((ia->ia_ifp->if_flags & IFF_BROADCAST) &&
if (ia->ia_ifp && (ia->ia_ifp->if_flags & IFF_BROADCAST) &&
t.s_addr == satosin(&ia->ia_broadaddr)->sin_addr.s_addr)
break;
}