glibc/socket/sys/un.h

/* Copyright (C) 1991, 1995, 1996 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 Library General Public License as
   published by the Free Software Foundation; either version 2 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#ifndef	_SYS_UN_H

#define	_SYS_UN_H	1
#include <sys/cdefs.h>

#include <string.h>		/* For prototype of `strlen'.  */

/* Get the definition of the macro to define the common sockaddr members.  */
#include <sockaddrcom.h>

__BEGIN_DECLS

/* Structure describing the address of an AF_LOCAL (aka AF_UNIX) socket.  */
struct sockaddr_un
  {
    __SOCKADDR_COMMON (sun_);
    char sun_path[108];		/* Path name.  */
  };


/* Evaluate to actual length of the `sockaddr_un' structure.  */
#define SUN_LEN(ptr) ((size_t) (((struct sockaddr_un *) 0)->sun_path)	      \
		      + strlen ((ptr)->sun_path))

__END_DECLS

#endif	/* sys/un.h  */