2 * Copyright (C) 2004, 2005 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 2000, 2001 Internet Software Consortium.
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
18 /* $Id: ipv6.h,v 1.10.18.2 2005/04/29 00:17:21 marka Exp $ */
21 #define LWRES_IPV6_H 1
28 * IPv6 definitions for systems which do not support IPv6.
35 #include <lwres/int.h>
36 #include <lwres/platform.h>
42 /*% in6_addr structure */
45 lwres_uint8_t _S6_u8[16];
46 lwres_uint16_t _S6_u16[8];
47 lwres_uint32_t _S6_u32[4];
52 #define s6_addr _S6_un._S6_u8
53 #define s6_addr8 _S6_un._S6_u8
54 #define s6_addr16 _S6_un._S6_u16
55 #define s6_addr32 _S6_un._S6_u32
58 #define IN6ADDR_ANY_INIT {{{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }}}
59 #define IN6ADDR_LOOPBACK_INIT {{{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 }}}
61 LIBLWRES_EXTERNAL_DATA extern const struct in6_addr in6addr_any;
62 LIBLWRES_EXTERNAL_DATA extern const struct in6_addr in6addr_loopback;
64 /*% used in getaddrinfo.c and getnameinfo.c */
66 #ifdef LWRES_PLATFORM_HAVESALEN
67 lwres_uint8_t sin6_len;
68 lwres_uint8_t sin6_family;
70 lwres_uint16_t sin6_family;
72 lwres_uint16_t sin6_port;
73 lwres_uint32_t sin6_flowinfo;
74 struct in6_addr sin6_addr;
75 lwres_uint32_t sin6_scope_id;
78 #ifdef LWRES_PLATFORM_HAVESALEN
82 /*% in6_pktinfo structure */
84 struct in6_addr ipi6_addr; /*%< src/dst IPv6 address */
85 unsigned int ipi6_ifindex; /*%< send/recv interface index */
89 * Unspecified IPv6 address
91 #define IN6_IS_ADDR_UNSPECIFIED(a) \
92 (((a)->s6_addr32[0] == 0) && \
93 ((a)->s6_addr32[1] == 0) && \
94 ((a)->s6_addr32[2] == 0) && \
95 ((a)->s6_addr32[3] == 0))
100 #define IN6_IS_ADDR_LOOPBACK(a) \
101 (((a)->s6_addr32[0] == 0) && \
102 ((a)->s6_addr32[1] == 0) && \
103 ((a)->s6_addr32[2] == 0) && \
104 ((a)->s6_addr32[3] == htonl(1)))
109 #define IN6_IS_ADDR_V4COMPAT(a) \
110 (((a)->s6_addr32[0] == 0) && \
111 ((a)->s6_addr32[1] == 0) && \
112 ((a)->s6_addr32[2] == 0) && \
113 ((a)->s6_addr32[3] != 0) && \
114 ((a)->s6_addr32[3] != htonl(1)))
119 #define IN6_IS_ADDR_V4MAPPED(a) \
120 (((a)->s6_addr32[0] == 0) && \
121 ((a)->s6_addr32[1] == 0) && \
122 ((a)->s6_addr32[2] == htonl(0x0000ffff)))
124 #endif /* LWRES_IPV6_H */