glibc (2.38)
1 /* Copyright (C) 1991-2023 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #ifndef _SYS_UN_H
19 #define _SYS_UN_H 1
20
21 #include <sys/cdefs.h>
22
23 /* Get the definition of the macro to define the common sockaddr members. */
24 #include <bits/sockaddr.h>
25
26 __BEGIN_DECLS
27
28 /* Structure describing the address of an AF_LOCAL (aka AF_UNIX) socket. */
29 struct sockaddr_un
30 {
31 __SOCKADDR_COMMON (sun_);
32 char sun_path[108]; /* Path name. */
33 };
34
35
36 #ifdef __USE_MISC
37 # include <stddef.h>
38 # include <string.h> /* For prototype of `strlen'. */
39
40 /* Evaluate to actual length of the `sockaddr_un' structure. */
41 # define SUN_LEN(ptr) (offsetof (struct sockaddr_un, sun_path) \
42 + strlen ((ptr)->sun_path))
43 #endif
44
45 __END_DECLS
46
47 #endif /* sys/un.h */
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