234 lines
6.1 KiB
C
234 lines
6.1 KiB
C
/* $NetBSD: kern_sig_13.c,v 1.9 2003/01/18 07:28:34 thorpej 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 <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: kern_sig_13.c,v 1.9 2003/01/18 07:28:34 thorpej Exp $");
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#include <sys/param.h>
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#include <sys/proc.h>
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#include <sys/signal.h>
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#include <sys/signalvar.h>
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#include <sys/systm.h>
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#include <sys/mount.h>
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#include <sys/sa.h>
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#include <sys/syscallargs.h>
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#include <machine/limits.h>
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#include <compat/common/compat_util.h>
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void
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native_sigset13_to_sigset(oss, ss)
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const sigset13_t *oss;
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sigset_t *ss;
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{
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ss->__bits[0] = *oss;
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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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native_sigset_to_sigset13(ss, oss)
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const sigset_t *ss;
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sigset13_t *oss;
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{
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*oss = ss->__bits[0];
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}
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void
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native_sigaction13_to_sigaction(osa, sa)
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const struct sigaction13 *osa;
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struct sigaction *sa;
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{
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sa->sa_handler = osa->osa_handler;
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native_sigset13_to_sigset(&osa->osa_mask, &sa->sa_mask);
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sa->sa_flags = osa->osa_flags;
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}
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void
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native_sigaction_to_sigaction13(sa, osa)
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const struct sigaction *sa;
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struct sigaction13 *osa;
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{
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osa->osa_handler = sa->sa_handler;
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native_sigset_to_sigset13(&sa->sa_mask, &osa->osa_mask);
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osa->osa_flags = sa->sa_flags;
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}
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void
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native_sigaltstack13_to_sigaltstack(osa, sa)
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const struct sigaltstack13 *osa;
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struct sigaltstack *sa;
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{
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sa->ss_sp = osa->ss_sp;
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sa->ss_size = osa->ss_size;
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sa->ss_flags = osa->ss_flags;
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}
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void
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native_sigaltstack_to_sigaltstack13(sa, osa)
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const struct sigaltstack *sa;
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struct sigaltstack13 *osa;
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{
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osa->ss_sp = sa->ss_sp;
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osa->ss_size = sa->ss_size;
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osa->ss_flags = sa->ss_flags;
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}
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int
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compat_13_sys_sigaltstack(struct lwp *l, void *v, register_t *retval)
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{
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struct compat_13_sys_sigaltstack_args /* {
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syscallarg(const struct sigaltstack13 *) nss;
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syscallarg(struct sigaltstack13 *) oss;
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} */ *uap = v;
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struct proc *p = l->l_proc;
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struct sigaltstack13 ness, oess;
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struct sigaltstack nbss, obss;
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int error;
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if (SCARG(uap, nss)) {
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error = copyin(SCARG(uap, nss), &ness, sizeof(ness));
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if (error)
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return (error);
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native_sigaltstack13_to_sigaltstack(&ness, &nbss);
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}
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error = sigaltstack1(p,
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SCARG(uap, nss) ? &nbss : 0, SCARG(uap, oss) ? &obss : 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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native_sigaltstack_to_sigaltstack13(&obss, &oess);
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error = copyout(&oess, SCARG(uap, oss), sizeof(oess));
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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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int
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compat_13_sys_sigaction(struct lwp *l, void *v, register_t *retval)
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{
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struct compat_13_sys_sigaction_args /* {
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syscallarg(int) signum;
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syscallarg(const struct sigaction13 *) nsa;
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syscallarg(struct sigaction13 *) osa;
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} */ *uap = v;
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struct proc *p = l->l_proc;
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struct sigaction13 nesa, oesa;
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struct sigaction nbsa, obsa;
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int error;
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if (SCARG(uap, nsa)) {
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error = copyin(SCARG(uap, nsa), &nesa, sizeof(nesa));
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if (error)
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return (error);
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native_sigaction13_to_sigaction(&nesa, &nbsa);
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}
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error = sigaction1(p, SCARG(uap, signum),
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SCARG(uap, nsa) ? &nbsa : 0, SCARG(uap, osa) ? &obsa : 0,
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NULL, 0);
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if (error)
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return (error);
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if (SCARG(uap, osa)) {
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native_sigaction_to_sigaction13(&obsa, &oesa);
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error = copyout(&oesa, SCARG(uap, osa), sizeof(oesa));
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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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int
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compat_13_sys_sigprocmask(struct lwp *l, void *v, register_t *retval)
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{
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struct compat_13_sys_sigprocmask_args /* {
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syscallarg(int) how;
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syscallarg(int) mask;
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} */ *uap = v;
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struct proc *p = l->l_proc;
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sigset13_t ness, oess;
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sigset_t nbss, obss;
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int error;
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ness = SCARG(uap, mask);
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native_sigset13_to_sigset(&ness, &nbss);
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error = sigprocmask1(p, SCARG(uap, how), &nbss, &obss);
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if (error)
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return (error);
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native_sigset_to_sigset13(&obss, &oess);
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*retval = oess;
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return (0);
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}
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int
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compat_13_sys_sigpending(struct lwp *l, void *v, register_t *retval)
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{
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struct proc *p = l->l_proc;
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sigset13_t ess;
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sigset_t bss;
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sigpending1(p, &bss);
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native_sigset_to_sigset13(&bss, &ess);
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*retval = ess;
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return (0);
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}
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int
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compat_13_sys_sigsuspend(struct lwp *l, void *v, register_t *retval)
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{
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struct compat_13_sys_sigsuspend_args /* {
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syscallarg(sigset13_t) mask;
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} */ *uap = v;
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struct proc *p = l->l_proc;
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sigset13_t ess;
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sigset_t bss;
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ess = SCARG(uap, mask);
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native_sigset13_to_sigset(&ess, &bss);
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return (sigsuspend1(p, &bss));
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}
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