include/sys/un.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright (c) 1996, 2010, Oracle and/or its affiliates. All rights reserved.
  23  */
  24
  25 /*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
  26 /*        All Rights Reserved   */
  27
  28 /*
  29  * University Copyright- Copyright (c) 1982, 1986, 1988
  30  * The Regents of the University of California
  31  * All Rights Reserved
  32  *
  33  * University Acknowledgment- Portions of this document are derived from
  34  * software developed by the University of California, Berkeley, and its
  35  * contributors.
  36  */
  37
  38 #ifndef _SYS_UN_H
  39 #define _SYS_UN_H
  40
  41 #ifdef  __cplusplus
  42 extern "C" {
  43 #endif
  44
  45 #ifndef _SA_FAMILY_T
  46 #define _SA_FAMILY_T
  47 typedef unsigned short sa_family_t;
  48 #endif
  49
  50 /*
  51  * Definitions for UNIX IPC domain.
  52  */
  53 struct  sockaddr_un {
  54         sa_family_t     sun_family;             /* AF_UNIX */
  55         char            sun_path[108];          /* path name (gag) */
  56 };
  57
  58 #if (!defined(_XOPEN_SOURCE) && !defined(_POSIX_C_SOURCE)) || \
  59     defined(__EXTENSIONS__)
  60 /*
  61  * NOTE: If we ever go to BSD-style sun_len + sun_family, this macro needs to
  62  * change.
  63  *
  64  * Also, include a strlen() prototype, and we have to protect it w.r.t.
  65  * UNIX{98,03}.  And because there's strlen, we need size_t as well.
  66  */
  67 #if !defined(_SIZE_T) || __cplusplus >= 199711L
  68 #define _SIZE_T
  69 #if defined(_LP64) || defined(_I32LPx)
  70 typedef unsigned long   size_t;         /* size of something in bytes */
  71 #else
  72 typedef unsigned int    size_t;         /* (historical version) */
  73 #endif
  74 #endif  /* _SIZE_T */
  75
  76 extern size_t strlen(const char *);
  77
  78 #define SUN_LEN(su)     (sizeof (sa_family_t) + strlen((su)->sun_path))
  79
  80 #endif  /* (!defined(_XOPEN_SOURCE) && !defined(_POSIX_C_SOURCE)) || ... */
  81
  82 #ifdef _KERNEL
  83 int     unp_discard();
  84 #endif
  85
  86 #ifdef  __cplusplus
  87 }
  88 #endif
  89
  90 #endif /* _SYS_UN_H */