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Add sys/un.h header file

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Gregory Nutt 2015-01-24 11:44:06 -06:00
parent d84abfafc4
commit bf61008448
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/****************************************************************************
* include/sys/un.h
*
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __INCLUDE_SYS_UN_H
#define __INCLUDE_SYS_UN_H
/****************************************************************************
* Included Files
****************************************************************************/
/* The sys/un.> header defines the type sa_family_t as described in
* sys/socket.h.
*/
#include <sys/socket.h>
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* The size of sun_path is not specified. Different implementations us
* different sizes. BSD4.3 uses a size of 108; BSD4.4 uses a size of 104.
* Most implementation use a size that ranges from 92 to 108. Applications
* should not assume a particular length for sun_path.
*
* _POSIX_PATH_MAX would be a good choice too.
*/
#define UNIX_PATH_MAX 108
/****************************************************************************
* Public Type Definitions
****************************************************************************/
/* A UNIX domain socket address is represented in the following structure.
* This structure must be cast compatible with struct sockaddr.
*/
struct sockaddr_un
{
sa_family_t sun_family; /* AF_UNIX */
char sun_path[UNIX_PATH_MAX]; /* pathname */
};
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#endif /* __INCLUDE_SYS_UN_H */