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Editing File: /usr/include/bits/sockaddr.h

/* Definition of struct sockaddr_* common members and sizes, generic version.
   Copyright (C) 1995-2018 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

/*
 * Never include this file directly; use <sys/socket.h> instead.
 */

#ifndef _BITS_SOCKADDR_H
#define _BITS_SOCKADDR_H	1

/* POSIX.1g specifies this type name for the `sa_family' member.  */
typedef unsigned short int sa_family_t;

/* This macro is used to declare the initial common members
   of the data types used for socket addresses, `struct sockaddr',
   `struct sockaddr_in', `struct sockaddr_un', etc.  */

#define	__SOCKADDR_COMMON(sa_prefix) \
  sa_family_t sa_prefix##family

#define __SOCKADDR_COMMON_SIZE	(sizeof (unsigned short int))

/* Size of struct sockaddr_storage.  */
#define _SS_SIZE 128

#endif	/* bits/sockaddr.h */

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