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Add in6_localaddr(). From KAME via FreeBSD.

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This commit is contained in:
thorpej 2003-02-27 22:06:38 +00:00
parent 2125ffc454
commit 452610ea39
1 changed files with 22 additions and 2 deletions
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24
sys/netinet6/in6.c
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@ -1,4 +1,4 @@
/* $NetBSD: in6.c,v 1.73 2003/02/24 03:01:03 matt Exp $ */
/* $NetBSD: in6.c,v 1.74 2003/02/27 22:06:38 thorpej Exp $ */
/* $KAME: in6.c,v 1.198 2001/07/18 09:12:38 itojun Exp $ */
/*
@ -66,7 +66,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: in6.c,v 1.73 2003/02/24 03:01:03 matt Exp $");
__KERNEL_RCSID(0, "$NetBSD: in6.c,v 1.74 2003/02/27 22:06:38 thorpej Exp $");
#include "opt_inet.h"
@ -2086,6 +2086,26 @@ ip6_sprintf(addr)
return (ip6buf[ip6round]);
}
/*
* Determine if an address is on a local network.
*/
int
in6_localaddr(in6)
struct in6_addr *in6;
{
struct in6_ifaddr *ia;
if (IN6_IS_ADDR_LOOPBACK(in6) || IN6_IS_ADDR_LINKLOCAL(in6))
return (1);
for (ia = in6_ifaddr; ia; ia = ia->ia_next)
if (IN6_ARE_MASKED_ADDR_EQUAL(in6, &ia->ia_addr.sin6_addr,
&ia->ia_prefixmask.sin6_addr))
return (1);
return (0);
}
/*
* Get a scope of the address. Node-local, link-local, site-local or global.
*/