un.h revision 331722 
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 * 4. 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: stable/11/sys/sys/un.h 331722 2018-03-29 02:50:57Z eadler $
31 */
32
33#ifndef _SYS_UN_H_
34#define _SYS_UN_H_
35
36#include <sys/cdefs.h>
37#include <sys/_types.h>
38
39#ifndef _SA_FAMILY_T_DECLARED
40typedef	__sa_family_t	sa_family_t;
41#define	_SA_FAMILY_T_DECLARED
42#endif
43
44/*
45 * Definitions for UNIX IPC domain.
46 */
47struct sockaddr_un {
48	unsigned char	sun_len;	/* sockaddr len including null */
49	sa_family_t	sun_family;	/* AF_UNIX */
50	char	sun_path[104];		/* path name (gag) */
51};
52
53#if __BSD_VISIBLE
54
55/* Socket options. */
56#define	LOCAL_PEERCRED		1	/* retrieve peer credentials */
57#define	LOCAL_CREDS		2	/* pass credentials to receiver */
58#define	LOCAL_CONNWAIT		4	/* connects block until accepted */
59
60/* Start of reserved space for third-party socket options. */
61#define	LOCAL_VENDOR		SO_VENDOR
62
63#ifndef _KERNEL
64
65/* actual length of an initialized sockaddr_un */
66#define SUN_LEN(su) \
67	(sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
68
69#endif /* !_KERNEL */
70
71#endif /* __BSD_VISIBLE */
72
73#endif /* !_SYS_UN_H_ */
74