1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1988 AT&T */
28 /* All Rights Reserved */
29
30 #pragma weak _shmat = shmat
31 #pragma weak _shmctl = shmctl
32 #pragma weak _shmctl64 = shmctl64
33 #pragma weak _shmdt = shmdt
34 #pragma weak _shmget = shmget
35 #pragma weak _shmids = shmids
36
37 #include "lint.h"
38 #include <sys/types.h>
39 #include <sys/ipc.h>
40 #include <sys/ipc_impl.h>
41 #include <sys/shm.h>
42 #include <sys/shm_impl.h>
43 #include <sys/syscall.h>
44 #include <errno.h>
45
46 void *
shmat(int shmid,const void * shmaddr,int shmflg)47 shmat(int shmid, const void *shmaddr, int shmflg)
48 {
49 sysret_t rval;
50 int error;
51
52 error = __systemcall(&rval, SYS_shmsys, SHMAT, shmid, shmaddr, shmflg);
53 if (error)
54 (void) __set_errno(error);
55 return ((void *)rval.sys_rval1);
56 }
57
58 int
shmctl(int shmid,int cmd,struct shmid_ds * buf)59 shmctl(int shmid, int cmd, struct shmid_ds *buf)
60 {
61 if (cmd == IPC_SET64 || cmd == IPC_STAT64) {
62 (void) __set_errno(EINVAL);
63 return (-1);
64 }
65 return (syscall(SYS_shmsys, SHMCTL, shmid, cmd, buf));
66 }
67
68 int
shmctl64(int shmid,int cmd,struct shmid_ds64 * buf)69 shmctl64(int shmid, int cmd, struct shmid_ds64 *buf)
70 {
71 if (cmd != IPC_SET64 && cmd != IPC_STAT64) {
72 (void) __set_errno(EINVAL);
73 return (-1);
74 }
75 return (syscall(SYS_shmsys, SHMCTL, shmid, cmd, buf));
76 }
77
78 int
shmdt(char * shmaddr)79 shmdt(char *shmaddr)
80 {
81 return (syscall(SYS_shmsys, SHMDT, shmaddr));
82 }
83
84 int
shmget(key_t key,size_t size,int shmflg)85 shmget(key_t key, size_t size, int shmflg)
86 {
87 return (syscall(SYS_shmsys, SHMGET, key, size, shmflg));
88 }
89
90 int
shmids(int * buf,uint_t nids,uint_t * pnids)91 shmids(int *buf, uint_t nids, uint_t *pnids)
92 {
93 return (syscall(SYS_shmsys, SHMIDS, buf, nids, pnids));
94 }
95