121 lines
3.6 KiB
C
121 lines
3.6 KiB
C
/* $NetBSD: kern_sig_13.c,v 1.2 1997/11/29 18:39:46 kleink Exp $ */
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/*-
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* Copyright (c) 1997 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 Klaus Klein.
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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/param.h>
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#include <sys/proc.h>
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#include <sys/signal.h>
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#include <sys/systm.h>
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#include <sys/mount.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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int
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compat_13_sys_sigaltstack(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 sys___sigaltstack14_args ua;
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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 sigaltstack13 tmp13;
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struct sigaltstack tmp, *nssp, *ossp;
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caddr_t sg;
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int error;
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sg = stackgap_init(p->p_emul);
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if (SCARG(uap, nss) != NULL) {
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error = copyin(SCARG(uap, nss), &tmp13,
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sizeof(struct sigaltstack13));
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if (error != 0)
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return (error);
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tmp.ss_sp = tmp13.ss_sp;
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tmp.ss_size = tmp13.ss_size;
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tmp.ss_flags = tmp13.ss_flags;
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nssp = stackgap_alloc(&sg, sizeof(struct sigaltstack));
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error = copyout(&tmp, nssp, sizeof(struct sigaltstack));
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if (error != 0)
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return (error);
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} else
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nssp = NULL;
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if (SCARG(uap, oss) != NULL)
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ossp = stackgap_alloc(&sg, sizeof(struct sigaltstack));
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else
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ossp = NULL;
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SCARG(&ua, nss) = nssp;
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SCARG(&ua, oss) = ossp;
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error = sys___sigaltstack14(p, &ua, retval);
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if (error != 0)
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return (error);
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if (SCARG(uap, oss) != NULL) {
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error = copyin(SCARG(&ua, oss), &tmp,
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sizeof(struct sigaltstack));
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if (error != 0)
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return (error);
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tmp13.ss_sp = tmp.ss_sp;
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if (tmp.ss_size > INT_MAX)
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tmp13.ss_size = INT_MAX;
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else
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tmp13.ss_size = tmp.ss_size;
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tmp13.ss_flags = tmp.ss_flags;
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error = copyout(&tmp13, SCARG(uap, oss),
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sizeof(struct sigaltstack13));
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if (error != 0)
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return (error);
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}
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return (0);
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}
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