/usr/x86_64-linux-gnu/include/sys/ipc.h is in libc6-dev-amd64-cross 2.27-3ubuntu1cross1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | /* Copyright (C) 1995-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifndef _SYS_IPC_H
#define _SYS_IPC_H 1
#include <features.h>
/* Get system dependent definition of `struct ipc_perm' and more. */
#include <bits/ipctypes.h>
#include <bits/ipc.h>
#ifndef __uid_t_defined
typedef __uid_t uid_t;
# define __uid_t_defined
#endif
#ifndef __gid_t_defined
typedef __gid_t gid_t;
# define __gid_t_defined
#endif
#ifndef __mode_t_defined
typedef __mode_t mode_t;
# define __mode_t_defined
#endif
#ifndef __key_t_defined
typedef __key_t key_t;
# define __key_t_defined
#endif
__BEGIN_DECLS
/* Generates key for System V style IPC. */
extern key_t ftok (const char *__pathname, int __proj_id) __THROW;
__END_DECLS
#endif /* sys/ipc.h */
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