un.h revision 330897 
1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1982, 1986, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 4. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 *	@(#)un.h	8.3 (Berkeley) 2/19/95
32 * $FreeBSD: stable/11/sys/sys/un.h 330897 2018-03-14 03:19:51Z eadler $
33 */
34
35#ifndef _SYS_UN_H_
36#define _SYS_UN_H_
37
38#include <sys/cdefs.h>
39#include <sys/_types.h>
40
41#ifndef _SA_FAMILY_T_DECLARED
42typedef	__sa_family_t	sa_family_t;
43#define	_SA_FAMILY_T_DECLARED
44#endif
45
46/*
47 * Definitions for UNIX IPC domain.
48 */
49struct sockaddr_un {
50	unsigned char	sun_len;	/* sockaddr len including null */
51	sa_family_t	sun_family;	/* AF_UNIX */
52	char	sun_path[104];		/* path name (gag) */
53};
54
55#if __BSD_VISIBLE
56
57/* Socket options. */
58#define	LOCAL_PEERCRED		1	/* retrieve peer credentials */
59#define	LOCAL_CREDS		2	/* pass credentials to receiver */
60#define	LOCAL_CONNWAIT		4	/* connects block until accepted */
61
62/* Start of reserved space for third-party socket options. */
63#define	LOCAL_VENDOR		SO_VENDOR
64
65#ifndef _KERNEL
66
67/* actual length of an initialized sockaddr_un */
68#define SUN_LEN(su) \
69	(sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
70
71#endif /* !_KERNEL */
72
73#endif /* __BSD_VISIBLE */
74
75#endif /* !_SYS_UN_H_ */
76