sys/compat/common/kern_sig_16.c

   1 /*      $NetBSD: sys_sig.c,v 1.17 2008/10/15 06:51:20 wrstuden Exp $    */
   2
   3 /*-
   4  * Copyright (c) 2006, 2007, 2008 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Andrew Doran.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * Copyright (c) 1982, 1986, 1989, 1991, 1993
  34  *      The Regents of the University of California.  All rights reserved.
  35  * (c) UNIX System Laboratories, Inc.
  36  * All or some portions of this file are derived from material licensed
  37  * to the University of California by American Telephone and Telegraph
  38  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
  39  * the permission of UNIX System Laboratories, Inc.
  40  *
  41  * Redistribution and use in source and binary forms, with or without
  42  * modification, are permitted provided that the following conditions
  43  * are met:
  44  * 1. Redistributions of source code must retain the above copyright
  45  *    notice, this list of conditions and the following disclaimer.
  46  * 2. Redistributions in binary form must reproduce the above copyright
  47  *    notice, this list of conditions and the following disclaimer in the
  48  *    documentation and/or other materials provided with the distribution.
  49  * 3. Neither the name of the University nor the names of its contributors
  50  *    may be used to endorse or promote products derived from this software
  51  *    without specific prior written permission.
  52  *
  53  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  54  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  55  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  56  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  57  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  58  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  59  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  60  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  61  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  62  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  63  * SUCH DAMAGE.
  64  *
  65  *      @(#)kern_sig.c  8.14 (Berkeley) 5/14/95
  66  */
  67
  68 #include <sys/cdefs.h>
  69 __KERNEL_RCSID(0, "$NetBSD: sys_sig.c,v 1.17 2008/10/15 06:51:20 wrstuden Exp $");
  70
  71 #include <sys/param.h>
  72 #include <sys/kernel.h>
  73 #include <sys/signalvar.h>
  74 #include <sys/proc.h>
  75 #include <sys/pool.h>
  76 #include <sys/sa.h>
  77 #include <sys/savar.h>
  78 #include <sys/syscallargs.h>
  79 #include <sys/kauth.h>
  80 #include <sys/wait.h>
  81 #include <sys/kmem.h>
  82
  83 /* ARGSUSED */
  84 int
  85 compat_16_sys___sigaction14(struct lwp *l, const struct compat_16_sys___sigaction14_args *uap, register_t *retval)
  86 {
  87         /* {
  88                 syscallarg(int)                         signum;
  89                 syscallarg(const struct sigaction *)    nsa;
  90                 syscallarg(struct sigaction *)          osa;
  91         } */
  92         struct sigaction        nsa, osa;
  93         int                     error;
  94
  95         if (SCARG(uap, nsa)) {
  96                 error = copyin(SCARG(uap, nsa), &nsa, sizeof(nsa));
  97                 if (error)
  98                         return (error);
  99         }
 100         error = sigaction1(l, SCARG(uap, signum),
 101             SCARG(uap, nsa) ? &nsa : 0, SCARG(uap, osa) ? &osa : 0,
 102             NULL, 0);
 103         if (error)
 104                 return (error);
 105         if (SCARG(uap, osa)) {
 106                 error = copyout(&osa, SCARG(uap, osa), sizeof(osa));
 107                 if (error)
 108                         return (error);
 109         }
 110         return (0);
 111 }