| /**************************************************************************** |
| * 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 */ |
