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- /****************************************************************************
- * include/sys/un.h
- *
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership. The
- * ASF licenses this file to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance with the
- * License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- * License for the specific language governing permissions and limitations
- * under the License.
- *
- ****************************************************************************/
- #ifndef __INCLUDE_SYS_UN_H
- #define __INCLUDE_SYS_UN_H
- /****************************************************************************
- * Included Files
- ****************************************************************************/
- #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 */
- };
- /* There are three types of addresses:
- *
- * 1. pathname: sun_path holds a null terminated string. The allocated
- * size may be variable: sizeof(sa_family_t) + strlen(pathname) + 1
- * 2. unnamed: A unix socket that is not bound to any name. This case
- * there is no path. The allocated size may be sizeof(sa_family_t)
- * 3. abstract. The abstract path is distinguished because the pathname
- * consists of only the NUL terminator. The allocated size is then
- * sizeof(s_family_t) + 1.
- */
- /****************************************************************************
- * Public Function Prototypes
- ****************************************************************************/
- #endif /* __INCLUDE_SYS_UN_H */
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