1 /* $NetBSD: sysv_shm_14.c,v 1.17 2011/01/19 10:21:16 tsutsui Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: sysv_shm_14.c,v 1.17 2011/01/19 10:21:16 tsutsui Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/signal.h> 39 #include <sys/proc.h> 40 #include <sys/shm.h> 41 42 #ifndef SYSVSHM 43 #define SYSVSHM 44 #endif 45 46 #include <sys/syscallargs.h> 47 48 #include <compat/sys/shm.h> 49 50 51 int 52 compat_14_sys_shmctl(struct lwp *l, const struct compat_14_sys_shmctl_args *uap, register_t *retval) 53 { 54 /* { 55 syscallarg(int) shmid; 56 syscallarg(int) cmd; 57 syscallarg(struct shmid_ds14 *) buf; 58 } */ 59 struct shmid_ds shmbuf; 60 struct shmid_ds14 oshmbuf; 61 int cmd, error; 62 63 cmd = SCARG(uap, cmd); 64 65 if (cmd == IPC_SET) { 66 error = copyin(SCARG(uap, buf), &oshmbuf, sizeof(oshmbuf)); 67 if (error) 68 return (error); 69 __shmid_ds14_to_native(&oshmbuf, &shmbuf); 70 } 71 72 error = shmctl1(l, SCARG(uap, shmid), cmd, 73 (cmd == IPC_SET || cmd == IPC_STAT) ? &shmbuf : NULL); 74 75 if (error == 0 && cmd == IPC_STAT) { 76 __native_to_shmid_ds14(&shmbuf, &oshmbuf); 77 error = copyout(&oshmbuf, SCARG(uap, buf), sizeof(oshmbuf)); 78 } 79 80 return (error); 81 } 82