1 /* $NetBSD: sysv_sem_50.c,v 1.4 2019/01/27 02:08:39 pgoyette 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 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #include <sys/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: sysv_sem_50.c,v 1.4 2019/01/27 02:08:39 pgoyette Exp $"); 42 43 #if defined(_KERNEL_OPT) 44 #include "opt_compat_netbsd.h" 45 #endif 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/signal.h> 50 #include <sys/proc.h> 51 #include <sys/sem.h> 52 53 #ifndef SYSVSEM 54 #define SYSVSEM 55 #endif 56 57 #include <sys/syscallargs.h> 58 59 #include <compat/sys/sem.h> 60 61 int 62 compat_50_sys_____semctl13(struct lwp *l, const struct compat_50_sys_____semctl13_args *uap, register_t *retval) 63 { 64 /* { 65 syscallarg(int) semid; 66 syscallarg(int) semnum; 67 syscallarg(int) cmd; 68 syscallarg(union __semun *) arg; 69 } */ 70 union __semun arg; 71 struct semid_ds sembuf; 72 struct semid_ds13 osembuf; 73 int cmd, error; 74 void *pass_arg; 75 76 cmd = SCARG(uap, cmd); 77 78 pass_arg = get_semctl_arg(cmd, &sembuf, &arg); 79 80 if (pass_arg != NULL) { 81 error = copyin(SCARG(uap, arg), &arg, sizeof(arg)); 82 if (error) 83 return (error); 84 if (cmd == IPC_SET) { 85 error = copyin(arg.buf, &osembuf, sizeof(osembuf)); 86 if (error) 87 return (error); 88 __semid_ds13_to_native(&osembuf, &sembuf); 89 } 90 } 91 92 error = semctl1(l, SCARG(uap, semid), SCARG(uap, semnum), cmd, 93 pass_arg, retval); 94 95 if (error == 0 && cmd == IPC_STAT) { 96 __native_to_semid_ds13(&sembuf, &osembuf); 97 error = copyout(&osembuf, arg.buf, sizeof(osembuf)); 98 } 99 100 return (error); 101 } 102