1/* Helper for SA_LEN macro.
2 Copyright (C) 2013-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <sys/socket.h>
20
21/* If _HAVE_SA_LEN is defined, then SA_LEN just uses sockaddr.sa_len
22 and there is no need for a helper function. */
23
24#ifndef _HAVE_SA_LEN
25
26/* All configurations have at least these two headers
27 and their associated address families. */
28
29# include <netinet/in.h>
30# include <sys/un.h>
31
32/* More-specific sa_len.c files #define these various HAVE_*_H
33 macros and then #include this file. */
34
35# ifdef HAVE_NETASH_ASH_H
36# include <netash/ash.h>
37# endif
38# ifdef HAVE_NETATALK_AT_H
39# include <netatalk/at.h>
40# endif
41# ifdef HAVE_NETAX25_AX25_H
42# include <netax25/ax25.h>
43# endif
44# ifdef HAVE_NETECONET_EC_H
45# include <neteconet/ec.h>
46# endif
47# ifdef HAVE_NETIPX_IPX_H
48# include <netipx/ipx.h>
49# endif
50# ifdef HAVE_NETPACKET_PACKET_H
51# include <netpacket/packet.h>
52# endif
53# ifdef HAVE_NETROSE_ROSE_H
54# include <netrose/rose.h>
55# endif
56# ifdef HAVE_NETIUCV_IUCV_H
57# include <netiucv/iucv.h>
58# endif
59
60int
61__libc_sa_len (sa_family_t af)
62{
63 switch (af)
64 {
65# ifdef HAVE_NETATALK_AT_H
66 case AF_APPLETALK:
67 return sizeof (struct sockaddr_at);
68# endif
69# ifdef HAVE_NETASH_ASH_H
70 case AF_ASH:
71 return sizeof (struct sockaddr_ash);
72# endif
73# ifdef HAVE_NETAX25_AX25_H
74 case AF_AX25:
75 return sizeof (struct sockaddr_ax25);
76# endif
77# ifdef HAVE_NETECONET_EC_H
78 case AF_ECONET:
79 return sizeof (struct sockaddr_ec);
80# endif
81 case AF_INET:
82 return sizeof (struct sockaddr_in);
83 case AF_INET6:
84 return sizeof (struct sockaddr_in6);
85# ifdef HAVE_NETIPX_IPX_H
86 case AF_IPX:
87 return sizeof (struct sockaddr_ipx);
88# endif
89# ifdef HAVE_NETIUCV_IUCV_H
90 case AF_IUCV:
91 return sizeof (struct sockaddr_iucv);
92# endif
93 case AF_LOCAL:
94 return sizeof (struct sockaddr_un);
95# ifdef HAVE_NETPACKET_PACKET_H
96 case AF_PACKET:
97 return sizeof (struct sockaddr_ll);
98# endif
99# ifdef HAVE_NETROSE_ROSE_H
100 case AF_ROSE:
101 return sizeof (struct sockaddr_rose);
102# endif
103 }
104 return 0;
105}
106libc_hidden_def (__libc_sa_len)
107
108#endif /* Not _HAVE_SA_LEN. */
109