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In ip_setmoptions(), don't leave a route cache (struct route) on

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the stack if we exit with EADDRNOTAVAIL.
This commit is contained in:
dyoung 2007-01-29 05:59:30 +00:00
parent 0468886560
commit 24c98aa46f
1 changed files with 3 additions and 7 deletions
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10
sys/netinet/ip_output.c
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@ -1,4 +1,4 @@
/* $NetBSD: ip_output.c,v 1.174 2007/01/13 23:13:46 joerg Exp $ */ /* $NetBSD: ip_output.c,v 1.175 2007/01/29 05:59:30 dyoung Exp $ */
/* /*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@ -98,7 +98,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ip_output.c,v 1.174 2007/01/13 23:13:46 joerg Exp $"); __KERNEL_RCSID(0, "$NetBSD: ip_output.c,v 1.175 2007/01/29 05:59:30 dyoung Exp $");
#include "opt_pfil_hooks.h" #include "opt_pfil_hooks.h"
#include "opt_inet.h" #include "opt_inet.h"
@ -1765,11 +1765,7 @@ ip_setmoptions(int optname, struct ip_moptions **imop, struct mbuf *m)
dst->sin_family = AF_INET; dst->sin_family = AF_INET;
dst->sin_addr = mreq->imr_multiaddr; dst->sin_addr = mreq->imr_multiaddr;
rtcache_init(&ro); rtcache_init(&ro);
if (ro.ro_rt == NULL) { ifp = (ro.ro_rt != NULL) ? ro.ro_rt->rt_ifp : NULL;
error = EADDRNOTAVAIL;
break;
}
ifp = ro.ro_rt->rt_ifp;
rtcache_free(&ro); rtcache_free(&ro);
} else { } else {
ifp = ip_multicast_if(&mreq->imr_interface, NULL); ifp = ip_multicast_if(&mreq->imr_interface, NULL);