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      1 /*	$NetBSD: sys_descrip_100.c,v 1.2 2024/05/20 09:37:34 martin Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2024 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 #include <sys/cdefs.h>
     29 __KERNEL_RCSID(0, "$NetBSD: sys_descrip_100.c,v 1.2 2024/05/20 09:37:34 martin Exp $");
     30 
     31 #if defined(_KERNEL_OPT)
     32 #include "opt_compat_netbsd.h"
     33 #endif
     34 
     35 #include <sys/param.h>
     36 #include <sys/filedesc.h>
     37 #include <sys/syscall.h>
     38 #include <sys/syscallvar.h>
     39 #include <sys/syscallargs.h>
     40 
     41 #include <compat/common/compat_mod.h>
     42 
     43 static const struct syscall_package sys_descrip_100_syscalls[] = {
     44 	{ SYS_compat_100_dup3, 0,
     45 	    (sy_call_t *)compat_100_sys_dup3 },
     46 	{ 0, 0, NULL },
     47 };
     48 
     49 int
     50 sys_descrip_100_init(void)
     51 {
     52 
     53 	return syscall_establish(NULL, sys_descrip_100_syscalls);
     54 }
     55 
     56 int
     57 sys_descrip_100_fini(void)
     58 {
     59 
     60 	return syscall_disestablish(NULL, sys_descrip_100_syscalls);
     61 }
     62 
     63 int
     64 compat_100_sys_dup3(struct lwp *l, const struct compat_100_sys_dup3_args *uap,
     65     register_t *retval)
     66 {
     67 	/* {
     68 		syscallarg(int)	from;
     69 		syscallarg(int)	to;
     70 		syscallarg(int)	flags;
     71 	} */
     72 	return dodup(l, SCARG(uap, from), SCARG(uap, to), SCARG(uap, flags),
     73 	    retval);
     74 }
     75