[src/trunk]: src/sys/netinet6 Consider a mapped IPv4 address of 0.0.0.0 as un...

[joerg <joerg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f085cc4b3b74
branches:  trunk
changeset: 757225:f085cc4b3b74
user:      joerg <joerg%NetBSD.org@localhost>
date:      Fri Aug 20 15:01:11 2010 +0000

description:
Consider a mapped IPv4 address of 0.0.0.0 as unspecified. This allows
using mapped IPv4 address with connect without preceding bind.

diffstat:

 sys/netinet6/in6_pcb.c |  8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diffs (29 lines):

diff -r 5e46cb183e73 -r f085cc4b3b74 sys/netinet6/in6_pcb.c
--- a/sys/netinet6/in6_pcb.c    Fri Aug 20 14:59:53 2010 +0000
+++ b/sys/netinet6/in6_pcb.c    Fri Aug 20 15:01:11 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: in6_pcb.c,v 1.110 2009/05/26 00:17:56 pooka Exp $      */
+/*     $NetBSD: in6_pcb.c,v 1.111 2010/08/20 15:01:11 joerg Exp $      */
 /*     $KAME: in6_pcb.c,v 1.84 2001/02/08 18:02:08 itojun Exp $        */
 
 /*
@@ -62,7 +62,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: in6_pcb.c,v 1.110 2009/05/26 00:17:56 pooka Exp $");
+__KERNEL_RCSID(0, "$NetBSD: in6_pcb.c,v 1.111 2010/08/20 15:01:11 joerg Exp $");
 
 #include "opt_inet.h"
 #include "opt_ipsec.h"
@@ -367,7 +367,9 @@
         * If we already have a local port or a local address it means we're
         * bounded.
         */
-       if (in6p->in6p_lport || !IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr))
+       if (in6p->in6p_lport || !(IN6_IS_ADDR_UNSPECIFIED(&in6p->in6p_laddr) ||
+           (IN6_IS_ADDR_V4MAPPED(&in6p->in6p_laddr) &&
+             in6p->in6p_laddr.s6_addr32[3] == 0))) {
                return (EINVAL);
 
        if (nam != NULL) {