Back to index

glibc  2.9
sockaddr.h
Go to the documentation of this file.
00001 /* Definition of `struct sockaddr_*' common members.  4.4 BSD version.
00002    Copyright (C) 1995, 1996, 1997, 1998, 2001 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 /*
00021  * Never include this file directly; use <sys/socket.h> instead.
00022  */
00023 
00024 #ifndef _BITS_SOCKADDR_H
00025 #define _BITS_SOCKADDR_H    1
00026 
00027 
00028 /* POSIX.1g specifies this type name for the `sa_family' member.  */
00029 typedef unsigned char sa_family_t;
00030 
00031 /* This macro is used to declare the initial common members
00032    of the data types used for socket addresses, `struct sockaddr',
00033    `struct sockaddr_in', `struct sockaddr_un', etc.  */
00034 
00035 #define       __SOCKADDR_COMMON(sa_prefix)       \
00036   unsigned char sa_prefix##len;           \
00037   sa_family_t sa_prefix##family
00038 
00039 #define __SOCKADDR_COMMON_SIZE     (2 * sizeof (unsigned char))
00040 
00041 #define _HAVE_SA_LEN 1      /* We have the sa_len field.  */
00042 
00043 #endif /* bits/sockaddr.h */