1 /* Helper for SA_LEN macro. 2 Copyright (C) 2013-2022 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 60 int __libc_sa_len(sa_family_t af)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 } 106 libc_hidden_def (__libc_sa_len) 107 108 #endif /* Not _HAVE_SA_LEN. */ 109