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 2008 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 ident "%Z%%M% %I% %E% SMI" 31 32 #pragma weak _shmat = shmat 33 #pragma weak _shmctl = shmctl 34 #pragma weak _shmctl64 = shmctl64 35 #pragma weak _shmdt = shmdt 36 #pragma weak _shmget = shmget 37 #pragma weak _shmids = shmids 38 39 #include "lint.h" 40 #include <sys/types.h> 41 #include <sys/ipc.h> 42 #include <sys/ipc_impl.h> 43 #include <sys/shm.h> 44 #include <sys/shm_impl.h> 45 #include <sys/syscall.h> 46 #include <errno.h> 47 48 void * 49 shmat(int shmid, const void *shmaddr, int shmflg) 50 { 51 sysret_t rval; 52 int error; 53 54 error = __systemcall(&rval, SYS_shmsys, SHMAT, shmid, shmaddr, shmflg); 55 if (error) 56 (void) __set_errno(error); 57 return ((void *)rval.sys_rval1); 58 } 59 60 int 61 shmctl(int shmid, int cmd, struct shmid_ds *buf) 62 { 63 if (cmd == IPC_SET64 || cmd == IPC_STAT64) { 64 (void) __set_errno(EINVAL); 65 return (-1); 66 } 67 return (syscall(SYS_shmsys, SHMCTL, shmid, cmd, buf)); 68 } 69 70 int 71 shmctl64(int shmid, int cmd, struct shmid_ds64 *buf) 72 { 73 if (cmd != IPC_SET64 && cmd != IPC_STAT64) { 74 (void) __set_errno(EINVAL); 75 return (-1); 76 } 77 return (syscall(SYS_shmsys, SHMCTL, shmid, cmd, buf)); 78 } 79 80 int 81 shmdt(char *shmaddr) 82 { 83 return (syscall(SYS_shmsys, SHMDT, shmaddr)); 84 } 85 86 int 87 shmget(key_t key, size_t size, int shmflg) 88 { 89 return (syscall(SYS_shmsys, SHMGET, key, size, shmflg)); 90 } 91 92 int 93 shmids(int *buf, uint_t nids, uint_t *pnids) 94 { 95 return (syscall(SYS_shmsys, SHMIDS, buf, nids, pnids)); 96 } 97