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. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  *      @(#)un.h        8.3 (Berkeley) 2/19/95
  30  * $FreeBSD: src/sys/sys/un.h,v 1.17.2.1 2002/03/09 05:22:23 dd Exp $
  31  */
  32
  33 #ifndef _SYS_UN_H_
  34 #define _SYS_UN_H_
  35
  36 #ifndef _SYS_TYPES_H_
  37 #include <sys/types.h>
  38 #endif
  39
  40 #ifndef _SA_FAMILY_T_DECLARED
  41 typedef __uint8_t       sa_family_t;
  42 #define _SA_FAMILY_T_DECLARED
  43 #endif
  44
  45 /*
  46  * Definitions for UNIX IPC domain.
  47  */
  48 struct sockaddr_un {
  49         uint8_t         sun_len;        /* sockaddr len including null */
  50         sa_family_t     sun_family;     /* AF_UNIX */
  51         char            sun_path[104];  /* path name (gag) */
  52 };
  53
  54 /* Socket options. */
  55 #define LOCAL_PEERCRED          0x001           /* retrieve peer credentails */
  56
  57 #ifdef _KERNEL
  58 struct mbuf;
  59 struct socket;
  60 union netmsg;
  61
  62 int     uipc_usrreq(struct socket *so, int req, struct mbuf *m,
  63             struct mbuf *nam, struct mbuf *control);
  64 void    uipc_ctloutput(union netmsg *msg);
  65 int     unp_connect2(struct socket *so, struct socket *so2);
  66 void    unp_dispose(struct mbuf *m);
  67 int     unp_externalize(struct mbuf *rights, int flags);
  68 void    unp_init(void);
  69 extern  struct pr_usrreqs uipc_usrreqs;
  70 #else /* !_KERNEL */
  71
  72 /* actual length of an initialized sockaddr_un */
  73 #define SUN_LEN(su) \
  74         (sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
  75
  76 #endif /* _KERNEL */
  77
  78 #endif /* !_SYS_UN_H_ */