]>
git.ipfire.org Git - thirdparty/glibc.git/blob - sysdeps/unix/sysv/linux/shmat.c
1 /* Copyright (C) 1995-2016 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
25 #include <sys/syscall.h>
27 /* Attach the shared memory segment associated with SHMID to the data
28 segment of the calling process. SHMADDR and SHMFLG determine how
29 and where the segment is attached. */
32 shmat (int shmid
, const void *shmaddr
, int shmflg
)
34 INTERNAL_SYSCALL_DECL(err
);
35 unsigned long resultvar
;
38 resultvar
= INTERNAL_SYSCALL (ipc
, err
, 5, IPCOP_shmat
,
42 if (INTERNAL_SYSCALL_ERROR_P (resultvar
, err
))
43 return (void *) INLINE_SYSCALL_ERROR_RETURN_VALUE (INTERNAL_SYSCALL_ERRNO (resultvar
,