279 lines
7.1 KiB
C
279 lines
7.1 KiB
C
/* $NetBSD: kern_sig_43.c,v 1.11 1999/04/29 16:09:12 christos Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Charles M. Hannum.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "opt_compat_netbsd.h"
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#include <sys/param.h>
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#include <sys/signalvar.h>
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#include <sys/resourcevar.h>
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#include <sys/namei.h>
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#include <sys/vnode.h>
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#include <sys/proc.h>
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#include <sys/systm.h>
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#include <sys/timeb.h>
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#include <sys/times.h>
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#include <sys/buf.h>
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#include <sys/acct.h>
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#include <sys/file.h>
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#include <sys/kernel.h>
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#include <sys/wait.h>
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#include <sys/ktrace.h>
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#include <sys/syslog.h>
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#include <sys/stat.h>
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#include <sys/core.h>
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#include <sys/mount.h>
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#include <sys/syscallargs.h>
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#include <machine/cpu.h>
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#include <vm/vm.h>
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#include <sys/user.h> /* for coredump */
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void compat_43_sigmask_to_sigset __P((const int *, sigset_t *));
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void compat_43_sigset_to_sigmask __P((const sigset_t *, int *));
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void compat_43_sigvec_to_sigaction __P((const struct sigvec *, struct sigaction *));
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void compat_43_sigaction_to_sigvec __P((const struct sigaction *, struct sigvec *));
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void compat_43_sigstack_to_sigaltstack __P((const struct sigstack *, struct sigaltstack *));
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void compat_43_sigaltstack_to_sigstack __P((const struct sigaltstack *, struct sigstack *));
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void
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compat_43_sigmask_to_sigset(sm, ss)
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const int *sm;
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sigset_t *ss;
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{
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ss->__bits[0] = *sm;
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ss->__bits[1] = 0;
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ss->__bits[2] = 0;
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ss->__bits[3] = 0;
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}
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void
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compat_43_sigset_to_sigmask(ss, sm)
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const sigset_t *ss;
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int *sm;
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{
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*sm = ss->__bits[0];
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}
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void
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compat_43_sigvec_to_sigaction(sv, sa)
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const struct sigvec *sv;
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struct sigaction *sa;
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{
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sa->sa_handler = sv->sv_handler;
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compat_43_sigmask_to_sigset(&sv->sv_mask, &sa->sa_mask);
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sa->sa_flags = sv->sv_flags ^ SA_RESTART;
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}
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void
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compat_43_sigaction_to_sigvec(sa, sv)
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const struct sigaction *sa;
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struct sigvec *sv;
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{
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sv->sv_handler = sa->sa_handler;
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compat_43_sigset_to_sigmask(&sa->sa_mask, &sv->sv_mask);
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sv->sv_flags = sa->sa_flags ^ SA_RESTART;
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}
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void
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compat_43_sigstack_to_sigaltstack(ss, sa)
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const struct sigstack *ss;
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struct sigaltstack *sa;
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{
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sa->ss_sp = ss->ss_sp;
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sa->ss_size = SIGSTKSZ; /* Use the recommended size */
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sa->ss_flags = 0;
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if (ss->ss_onstack)
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sa->ss_flags |= SS_ONSTACK;
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}
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void
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compat_43_sigaltstack_to_sigstack(sa, ss)
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const struct sigaltstack *sa;
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struct sigstack *ss;
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{
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ss->ss_sp = sa->ss_sp;
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if (sa->ss_flags & SS_ONSTACK)
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ss->ss_onstack = 1;
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else
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ss->ss_onstack = 0;
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}
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int
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compat_43_sys_sigblock(p, v, retval)
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register struct proc *p;
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void *v;
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register_t *retval;
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{
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struct compat_43_sys_sigblock_args /* {
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syscallarg(int) mask;
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} */ *uap = v;
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int nsm, osm;
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sigset_t nss, oss;
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int error;
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nsm = SCARG(uap, mask);
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compat_43_sigmask_to_sigset(&nsm, &nss);
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error = sigprocmask1(p, SIG_BLOCK, &nss, &oss);
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if (error)
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return (error);
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compat_43_sigset_to_sigmask(&oss, &osm);
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*retval = osm;
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return (0);
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}
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int
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compat_43_sys_sigsetmask(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct compat_43_sys_sigsetmask_args /* {
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syscallarg(int) mask;
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} */ *uap = v;
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int nsm, osm;
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sigset_t nss, oss;
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int error;
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nsm = SCARG(uap, mask);
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compat_43_sigmask_to_sigset(&nsm, &nss);
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error = sigprocmask1(p, SIG_SETMASK, &nss, &oss);
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if (error)
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return (error);
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compat_43_sigset_to_sigmask(&oss, &osm);
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*retval = osm;
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return (0);
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}
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/* ARGSUSED */
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int
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compat_43_sys_sigstack(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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register struct compat_43_sys_sigstack_args /* {
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syscallarg(struct sigstack *) nss;
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syscallarg(struct sigstack *) oss;
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} */ *uap = v;
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struct sigstack nss, oss;
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struct sigaltstack nsa, osa;
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int error;
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if (SCARG(uap, nss)) {
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error = copyin(SCARG(uap, nss), &nss, sizeof(nss));
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if (error)
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return (error);
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compat_43_sigstack_to_sigaltstack(&nss, &nsa);
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}
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error = sigaltstack1(p,
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SCARG(uap, nss) ? &nsa : 0, SCARG(uap, oss) ? &osa : 0);
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if (error)
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return (error);
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if (SCARG(uap, oss)) {
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compat_43_sigaltstack_to_sigstack(&osa, &oss);
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error = copyout(&oss, SCARG(uap, oss), sizeof(oss));
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if (error)
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return (error);
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}
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return (0);
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}
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/*
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* Generalized interface signal handler, 4.3-compatible.
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*/
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/* ARGSUSED */
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int
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compat_43_sys_sigvec(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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register struct compat_43_sys_sigvec_args /* {
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syscallarg(int) signum;
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syscallarg(const struct sigvec *) nsv;
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syscallarg(struct sigvec *) osv;
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} */ *uap = v;
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struct sigvec nsv, osv;
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struct sigaction nsa, osa;
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int error;
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if (SCARG(uap, nsv)) {
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error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv));
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if (error)
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return (error);
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compat_43_sigvec_to_sigaction(&nsv, &nsa);
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}
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error = sigaction1(p, SCARG(uap, signum),
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SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0);
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if (error)
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return (error);
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if (SCARG(uap, osv)) {
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compat_43_sigaction_to_sigvec(&osa, &osv);
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error = copyout(&osv, SCARG(uap, osv), sizeof(osv));
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if (error)
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return (error);
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}
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return (0);
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}
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/* ARGSUSED */
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int
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compat_43_sys_killpg(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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register struct compat_43_sys_killpg_args /* {
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syscallarg(int) pgid;
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syscallarg(int) signum;
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} */ *uap = v;
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#ifdef COMPAT_09
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SCARG(uap, pgid) = (short) SCARG(uap, pgid);
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#endif
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if ((u_int)SCARG(uap, signum) >= NSIG)
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return (EINVAL);
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return (killpg1(p, SCARG(uap, signum), SCARG(uap, pgid), 0));
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}
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