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/*
* Copyright (C) 2004, 2005, 2007, 2011, 2012 Internet Systems Consortium, Inc. ("ISC")
* Copyright (C) 1999-2002 Internet Software Consortium.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id$ */
#ifndef ISC_IPV6_H
#define ISC_IPV6_H 1
/*****
***** Module Info
*****/
/*
* IPv6 definitions for systems which do not support IPv6.
*
* MP:
* No impact.
*
* Reliability:
* No anticipated impact.
*
* Resources:
* N/A.
*
* Security:
* No anticipated impact.
*
* Standards:
* RFC2553.
*/
#if _MSC_VER < 1300
#define in6_addr in_addr6
#endif
#ifndef IN6ADDR_ANY_INIT
#define IN6ADDR_ANY_INIT {{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }}
#endif
#ifndef IN6ADDR_LOOPBACK_INIT
#define IN6ADDR_LOOPBACK_INIT {{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 }}
#endif
LIBISC_EXTERNAL_DATA extern const struct in6_addr isc_net_in6addrany;
LIBISC_EXTERNAL_DATA extern const struct in6_addr isc_net_in6addrloop;
/*
* Unspecified
*/
#ifndef IN6_IS_ADDR_UNSPECIFIED
#define IN6_IS_ADDR_UNSPECIFIED(a) (\
*((u_long *)((a)->s6_addr) ) == 0 && \
*((u_long *)((a)->s6_addr) + 1) == 0 && \
*((u_long *)((a)->s6_addr) + 2) == 0 && \
*((u_long *)((a)->s6_addr) + 3) == 0 \
)
#endif
/*
* Loopback
*/
#ifndef IN6_IS_ADDR_LOOPBACK
#define IN6_IS_ADDR_LOOPBACK(a) (\
*((u_long *)((a)->s6_addr) ) == 0 && \
*((u_long *)((a)->s6_addr) + 1) == 0 && \
*((u_long *)((a)->s6_addr) + 2) == 0 && \
*((u_long *)((a)->s6_addr) + 3) == htonl(1) \
)
#endif
/*
* IPv4 compatible
*/
#define IN6_IS_ADDR_V4COMPAT(a) (\
*((u_long *)((a)->s6_addr) ) == 0 && \
*((u_long *)((a)->s6_addr) + 1) == 0 && \
*((u_long *)((a)->s6_addr) + 2) == 0 && \
*((u_long *)((a)->s6_addr) + 3) != 0 && \
*((u_long *)((a)->s6_addr) + 3) != htonl(1) \
)
/*
* Mapped
*/
#define IN6_IS_ADDR_V4MAPPED(a) (\
*((u_long *)((a)->s6_addr) ) == 0 && \
*((u_long *)((a)->s6_addr) + 1) == 0 && \
*((u_long *)((a)->s6_addr) + 2) == htonl(0x0000ffff))
/*
* Multicast
*/
#define IN6_IS_ADDR_MULTICAST(a) \
((a)->s6_addr[0] == 0xffU)
/*
* Unicast link / site local.
*/
#ifndef IN6_IS_ADDR_LINKLOCAL
#define IN6_IS_ADDR_LINKLOCAL(a) (\
((a)->s6_addr[0] == 0xfe) && \
(((a)->s6_addr[1] & 0xc0) == 0x80))
#endif
#ifndef IN6_IS_ADDR_SITELOCAL
#define IN6_IS_ADDR_SITELOCAL(a) (\
((a)->s6_addr[0] == 0xfe) && \
(((a)->s6_addr[1] & 0xc0) == 0xc0))
#endif
#endif /* ISC_IPV6_H */
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