2 sockaddr.h -- sockaddr handling
4 Copyright (C) 2003-2004 Guus Sliepen <guus@tinc-vpn.org>,
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #ifndef __SOCKADDR_H__
24 #define __SOCKADDR_H__
26 #define AF_UNKNOWN 255
28 struct sockaddr_unknown {
36 #define sa(s) ((struct sockaddr *)(s))
38 #define sa_len(s) SA_LEN((struct sockaddr *)(s))
40 #define sa_len(s) (((struct sockaddr *)(s))->sa_family == AF_INET ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6))
43 #define sa_family(s) (((struct sockaddr *)(s))->sa_family)
45 #define sa_unmap(s) ({if(((struct sockaddr *)(s))->sa_family == AF_INET6 && IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)(s))->sin6_addr)) { \
46 ((struct sockaddr_in *)(s))->sin_addr.s_addr = ((struct sockaddr_in6 *)(s))->sin6_addr.s6_addr32[3]; \
47 ((struct sockaddr *)(s))->sa_family = AF_INET; \