1 /* $NetBSD: sysv_msg_14.c,v 1.19 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_msg_14.c,v 1.19 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/msg.h> 41 42 #include <compat/sys/msg.h> 43 44 #ifndef SYSVMSG 45 #define SYSVMSG 46 #endif 47 48 #include <sys/syscallargs.h> 49 50 int 51 compat_14_sys_msgctl(struct lwp *l, const struct compat_14_sys_msgctl_args *uap, register_t *retval) 52 { 53 /* { 54 syscallarg(int) msqid; 55 syscallarg(int) cmd; 56 syscallarg(struct msqid_ds14 *) buf; 57 } */ 58 struct msqid_ds msqbuf; 59 struct msqid_ds14 omsqbuf; 60 int cmd, error; 61 62 cmd = SCARG(uap, cmd); 63 64 if (cmd == IPC_SET) { 65 error = copyin(SCARG(uap, buf), &omsqbuf, sizeof(omsqbuf)); 66 if (error) 67 return (error); 68 __msqid_ds14_to_native(&omsqbuf, &msqbuf); 69 } 70 71 error = msgctl1(l, SCARG(uap, msqid), cmd, 72 (cmd == IPC_SET || cmd == IPC_STAT) ? &msqbuf : NULL); 73 74 if (error == 0 && cmd == IPC_STAT) { 75 __native_to_msqid_ds14(&msqbuf, &omsqbuf); 76 error = copyout(&omsqbuf, SCARG(uap, buf), sizeof(omsqbuf)); 77 } 78 79 return (error); 80 } 81