/* $NetBSD: sysv_sem_14.c,v 1.17 2019/01/27 02:08:39 pgoyette Exp $ */ /*- * Copyright (c) 1999 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: sysv_sem_14.c,v 1.17 2019/01/27 02:08:39 pgoyette Exp $"); #if defined(_KERNEL_OPT) #include "opt_compat_netbsd.h" #endif #include <sys/param.h> #include <sys/systm.h> #include <sys/signal.h> #include <sys/proc.h> #include <sys/sem.h> #ifndef SYSVSEM #define SYSVSEM #endif #include <sys/syscallargs.h> #include <compat/sys/sem.h> int compat_14_sys___semctl(struct lwp *l, const struct compat_14_sys___semctl_args *uap, register_t *retval) { /* { syscallarg(int) semid; syscallarg(int) semnum; syscallarg(int) cmd; syscallarg(union __semun *) arg; } */ union __semun arg; struct semid_ds sembuf; struct semid_ds14 osembuf; int cmd, error; void *pass_arg; cmd = SCARG(uap, cmd); pass_arg = get_semctl_arg(cmd, &sembuf, &arg); if (pass_arg != NULL) { error = copyin(SCARG(uap, arg), &arg, sizeof(arg)); if (error) return (error); if (cmd == IPC_SET) { error = copyin(arg.buf, &osembuf, sizeof(osembuf)); if (error) return (error); __semid_ds14_to_native(&osembuf, &sembuf); } } error = semctl1(l, SCARG(uap, semid), SCARG(uap, semnum), cmd, pass_arg, retval); if (error == 0 && cmd == IPC_STAT) { __native_to_semid_ds14(&sembuf, &osembuf); error = copyout(&osembuf, arg.buf, sizeof(osembuf)); } return (error); } |