FreeBSD/Linux Kernel Cross Reference
sys/sys/un.h

     /*      $OpenBSD: un.h,v 1.14 2015/07/18 15:00:01 guenther Exp $        */
     /*      $NetBSD: un.h,v 1.11 1996/02/04 02:12:47 christos Exp $ */
     
     /*
      * Copyright (c) 1982, 1986, 1993
      *      The Regents of the University of California.  All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the University nor the names of its contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     *      @(#)un.h        8.1 (Berkeley) 6/2/93
     */
    
    #ifndef _SYS_UN_H_
    #define _SYS_UN_H_
    
    #include <sys/cdefs.h>
    #include <sys/_types.h>
    
    #ifndef _SA_FAMILY_T_DEFINED_
    #define _SA_FAMILY_T_DEFINED_
    typedef __sa_family_t   sa_family_t;    /* sockaddr address family type */
    #endif
    
    /*
     * Definitions for UNIX IPC domain.
     */
    struct  sockaddr_un {
            unsigned char   sun_len;        /* sockaddr len excluding NUL */
            sa_family_t     sun_family;     /* AF_UNIX */
            char    sun_path[104];          /* path name (gag) */
    };
    
    #ifndef _KERNEL
    #if __BSD_VISIBLE
    
    /* actual length of an initialized sockaddr_un */
    #define SUN_LEN(su) \
            (sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
    
    #endif /* __BSD_VISIBLE */
    
    #endif /* _KERNEL */
    #endif /* !_SYS_UN_H_ */

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