]>
git.ipfire.org Git - people/ms/strongswan.git/blob - src/libfreeswan/libfreeswan/anyaddr.c
3 * Copyright (C) 2000 Henry Spencer.
5 * This library is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU Library General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version. See <http://www.fsf.org/copyleft/lgpl.txt>.
10 * This library is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
13 * License for more details.
15 * RCSID $Id: anyaddr.c,v 1.1 2004/03/15 20:35:25 as Exp $
20 /* these are mostly fallbacks for the no-IPv6-support-in-library case */
21 #ifndef IN6ADDR_ANY_INIT
22 #define IN6ADDR_ANY_INIT {{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }}
24 #ifndef IN6ADDR_LOOPBACK_INIT
25 #define IN6ADDR_LOOPBACK_INIT {{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 }}
28 static struct in6_addr v6any
= IN6ADDR_ANY_INIT
;
29 static struct in6_addr v6loop
= IN6ADDR_LOOPBACK_INIT
;
32 - anyaddr - initialize to the any-address value
34 err_t
/* NULL for success, else string literal */
36 int af
; /* address family */
39 uint32_t v4any
= htonl(INADDR_ANY
);
43 return initaddr((unsigned char *)&v4any
, sizeof(v4any
), af
, dst
);
46 return initaddr((unsigned char *)&v6any
, sizeof(v6any
), af
, dst
);
49 return "unknown address family in anyaddr/unspecaddr";
55 - unspecaddr - initialize to the unspecified-address value
57 err_t
/* NULL for success, else string literal */
59 int af
; /* address family */
62 return anyaddr(af
, dst
);
66 - loopbackaddr - initialize to the loopback-address value
68 err_t
/* NULL for success, else string literal */
70 int af
; /* address family */
73 uint32_t v4loop
= htonl(INADDR_LOOPBACK
);
77 return initaddr((unsigned char *)&v4loop
, sizeof(v4loop
), af
, dst
);
80 return initaddr((unsigned char *)&v6loop
, sizeof(v6loop
), af
, dst
);
83 return "unknown address family in loopbackaddr";
89 - isanyaddr - test for the any-address value
93 const ip_address
*src
;
95 uint32_t v4any
= htonl(INADDR_ANY
);
98 switch (src
->u
.v4
.sin_family
) {
100 cmp
= memcmp(&src
->u
.v4
.sin_addr
.s_addr
, &v4any
, sizeof(v4any
));
103 cmp
= memcmp(&src
->u
.v6
.sin6_addr
, &v6any
, sizeof(v6any
));
110 return (cmp
== 0) ? 1 : 0;
114 - isunspecaddr - test for the unspecified-address value
118 const ip_address
*src
;
120 return isanyaddr(src
);
124 - isloopbackaddr - test for the loopback-address value
128 const ip_address
*src
;
130 uint32_t v4loop
= htonl(INADDR_LOOPBACK
);
133 switch (src
->u
.v4
.sin_family
) {
135 cmp
= memcmp(&src
->u
.v4
.sin_addr
.s_addr
, &v4loop
, sizeof(v4loop
));
138 cmp
= memcmp(&src
->u
.v6
.sin6_addr
, &v6loop
, sizeof(v6loop
));
145 return (cmp
== 0) ? 1 : 0;