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      1 /*	$NetBSD: sysv_msg_50.c,v 1.5 2019/12/15 16:48:26 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_50.c,v 1.5 2019/12/15 16:48:26 tsutsui Exp $");
     35 
     36 #if defined(_KERNEL_OPT)
     37 #include "opt_compat_netbsd.h"
     38 #endif
     39 
     40 #include <sys/param.h>
     41 #include <sys/systm.h>
     42 #include <sys/signal.h>
     43 #include <sys/proc.h>
     44 #include <sys/msg.h>
     45 
     46 #include <compat/sys/msg.h>
     47 
     48 #ifndef SYSVMSG
     49 #define	SYSVMSG
     50 #endif
     51 
     52 #include <sys/syscallargs.h>
     53 
     54 int
     55 compat_50_sys___msgctl13(struct lwp *l, const struct compat_50_sys___msgctl13_args *uap, register_t *retval)
     56 {
     57 	/* {
     58 		syscallarg(int) msqid;
     59 		syscallarg(int) cmd;
     60 		syscallarg(struct msqid_ds13 *) buf;
     61 	} */
     62 	struct msqid_ds msqbuf;
     63 	struct msqid_ds13 omsqbuf;
     64 	int cmd, error;
     65 
     66 	cmd = SCARG(uap, cmd);
     67 
     68 	if (cmd == IPC_SET) {
     69 		error = copyin(SCARG(uap, buf), &omsqbuf, sizeof(omsqbuf));
     70 		if (error)
     71 			return (error);
     72 		__msqid_ds13_to_native(&omsqbuf, &msqbuf);
     73 	}
     74 
     75 	error = msgctl1(l, SCARG(uap, msqid), cmd,
     76 	    (cmd == IPC_SET || cmd == IPC_STAT) ? &msqbuf : NULL);
     77 
     78 	if (error == 0 && cmd == IPC_STAT) {
     79 		__native_to_msqid_ds13(&msqbuf, &omsqbuf);
     80 		error = copyout(&omsqbuf, SCARG(uap, buf), sizeof(omsqbuf));
     81 	}
     82 
     83 	return (error);
     84 }
     85