3 * Copyright (c) 1997 Kunihiro Ishiguro
5 * This file is part of GNU Zebra.
7 * GNU Zebra is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2, or (at your option) any
12 * GNU Zebra is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Zebra; see the file COPYING. If not, write to the Free
19 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
23 #ifndef _ZEBRA_SOCKUNION_H
24 #define _ZEBRA_SOCKUNION_H
35 struct sockaddr_in su_sin;
36 struct sockaddr_in6 su_sin6;
38 #define su_len su_si.si_len
39 #define su_family su_si.si_family
40 #define su_port su_si.si_port
46 struct sockaddr_in sin;
48 struct sockaddr_in6 sin6;
49 #endif /* HAVE_IPV6 */
59 /* Default address family. */
61 #define AF_INET_UNION AF_INET6
63 #define AF_INET_UNION AF_INET
66 /* Sockunion address string length. Same as INET6_ADDRSTRLEN. */
67 #define SU_ADDRSTRLEN 46
69 /* Macro to set link local index to the IPv6 address. For KAME IPv6
72 #define IN6_LINKLOCAL_IFINDEX(a) ((a).s6_addr[2] << 8 | (a).s6_addr[3])
73 #define SET_IN6_LINKLOCAL_IFINDEX(a, i) \
75 (a).s6_addr[2] = ((i) >> 8) & 0xff; \
76 (a).s6_addr[3] = (i) & 0xff; \
79 #define IN6_LINKLOCAL_IFINDEX(a)
80 #define SET_IN6_LINKLOCAL_IFINDEX(a, i)
83 #define sockunion_family(X) (X)->sa.sa_family
85 #define sockunion2ip(X) (X)->sin.sin_addr.s_addr
88 extern int str2sockunion (const char *, union sockunion *);
89 extern const char *sockunion2str (const union sockunion *, char *, size_t);
90 extern int sockunion_cmp (const union sockunion *, const union sockunion *);
91 extern int sockunion_same (const union sockunion *, const union sockunion *);
92 extern unsigned int sockunion_hash (const union sockunion *);
94 extern size_t family2addrsize(int family);
95 extern size_t sockunion_get_addrlen(const union sockunion *);
96 extern const u_char *sockunion_get_addr(const union sockunion *);
97 extern unsigned short sockunion_get_port (const union sockunion *);
98 extern void sockunion_set(union sockunion *, int family, const u_char *addr, size_t bytes);
100 extern union sockunion *sockunion_str2su (const char *str);
101 extern int sockunion_accept (int sock, union sockunion *);
102 extern int sockunion_stream_socket (union sockunion *);
103 extern int sockopt_reuseaddr (int);
104 extern int sockopt_reuseport (int);
105 extern int sockopt_v6only (int family, int sock);
106 extern int sockunion_bind (int sock, union sockunion *,
107 unsigned short, union sockunion *);
108 extern int sockopt_ttl (int family, int sock, int ttl);
109 extern int sockopt_minttl (int family, int sock, int minttl);
110 extern int sockopt_cork (int sock, int onoff);
111 extern int sockunion_socket (const union sockunion *su);
112 extern const char *inet_sutop (const union sockunion *su, char *str);
113 extern enum connect_result sockunion_connect (int fd, const union sockunion *su,
116 extern union sockunion *sockunion_getsockname (int);
117 extern union sockunion *sockunion_getpeername (int);
118 extern union sockunion *sockunion_dup (const union sockunion *);
119 extern void sockunion_free (union sockunion *);
121 #ifndef HAVE_INET_NTOP
122 extern const char * inet_ntop (int family, const void *addrptr,
123 char *strptr, size_t len);
124 #endif /* HAVE_INET_NTOP */
126 #ifndef HAVE_INET_PTON
127 extern int inet_pton (int family, const char *strptr, void *addrptr);
128 #endif /* HAVE_INET_PTON */
130 #ifndef HAVE_INET_ATON
131 extern int inet_aton (const char *cp, struct in_addr *inaddr);
134 #endif /* _ZEBRA_SOCKUNION_H */