sys/sys/un.h

   1 /*
   2  * Copyright (c) 1982, 1986, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  *      @(#)un.h        8.3 (Berkeley) 2/19/95
  34  * $FreeBSD: src/sys/sys/un.h,v 1.17.2.1 2002/03/09 05:22:23 dd Exp $
  35  * $DragonFly: src/sys/sys/un.h,v 1.5 2006/05/20 02:42:13 dillon Exp $
  36  */
  37
  38 #ifndef _SYS_UN_H_
  39 #define _SYS_UN_H_
  40
  41 #ifndef _SYS_TYPES_H_
  42 #include <sys/types.h>
  43 #endif
  44
  45 #ifndef _SYS_FILE_H_
  46 #include <sys/file.h>
  47 #endif
  48
  49 /*
  50  * Definitions for UNIX IPC domain.
  51  */
  52 struct  sockaddr_un {
  53         u_char  sun_len;                /* sockaddr len including null */
  54         u_char  sun_family;             /* AF_UNIX */
  55         char    sun_path[104];          /* path name (gag) */
  56 };
  57
  58 /* Socket options. */
  59 #define LOCAL_PEERCRED          0x001           /* retrieve peer credentails */
  60
  61 #ifdef _KERNEL
  62 struct mbuf;
  63 struct socket;
  64 struct sockopt;
  65
  66 int     uipc_usrreq (struct socket *so, int req, struct mbuf *m,
  67                 struct mbuf *nam, struct mbuf *control);
  68 int     uipc_ctloutput (struct socket *so, struct sockopt *sopt);
  69 int     unp_connect2 (struct socket *so, struct socket *so2);
  70 void    unp_dispose (struct mbuf *m);
  71 void    unp_revoke_gc (struct file *fx);
  72 int     unp_externalize (struct mbuf *rights);
  73 void    unp_init (void);
  74 extern  struct pr_usrreqs uipc_usrreqs;
  75 #else /* !_KERNEL */
  76
  77 /* actual length of an initialized sockaddr_un */
  78 #define SUN_LEN(su) \
  79         (sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
  80
  81 #endif /* _KERNEL */
  82
  83 #endif /* !_SYS_UN_H_ */