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netbsd32_compat_13.c revision 1.9 
      1 /*	$NetBSD: netbsd32_compat_13.c,v 1.9 2001/08/25 15:06:02 mrg Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998, 2001 Matthew R. Green
      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  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     23  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     26  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  */
     30 
     31 #include <sys/param.h>
     32 #include <sys/systm.h>
     33 #include <sys/mount.h>
     34 #include <sys/proc.h>
     35 #include <sys/signal.h>
     36 #include <sys/signalvar.h>
     37 #include <sys/syscallargs.h>
     38 
     39 #include <compat/netbsd32/netbsd32.h>
     40 #include <compat/netbsd32/netbsd32_syscallargs.h>
     41 
     42 int
     43 compat_13_netbsd32_sigaltstack13(p, v, retval)
     44 	struct proc *p;
     45 	void *v;
     46 	register_t *retval;
     47 {
     48 	struct compat_13_netbsd32_sigaltstack13_args /* {
     49 		syscallarg(const netbsd32_sigaltstack13p_t) nss;
     50 		syscallarg(netbsd32_sigaltstack13p_t) oss;
     51 	} */ *uap = v;
     52 	struct compat_13_sys_sigaltstack_args ua;
     53 	struct sigaltstack13 ss13, *nss13up, *oss13up;
     54 	struct netbsd32_sigaltstack13 s32ss;
     55 	caddr_t sg;
     56 	int error;
     57 
     58 	if (!SCARG(uap, nss))
     59 		return (EINVAL);
     60 
     61 	sg = stackgap_init(p->p_emul);
     62 
     63 	SCARG(&ua, nss) = nss13up = stackgap_alloc(&sg, sizeof(*nss13up));
     64 	if (SCARG(uap, oss))
     65 		SCARG(&ua, oss) = oss13up = stackgap_alloc(&sg, sizeof(*oss13up));
     66 	else
     67 		SCARG(&ua, oss) = NULL;
     68 
     69 	error = copyin((caddr_t)(u_long)SCARG(uap, nss), &s32ss, sizeof s32ss);
     70 	if (error)
     71 		return (error);
     72 	ss13.ss_sp = (char *)(u_long)s32ss.ss_sp;
     73 	ss13.ss_size = s32ss.ss_size;
     74 	ss13.ss_flags = s32ss.ss_flags;
     75 	error = copyout(&ss13, nss13up, sizeof *nss13up);
     76 	if (error)
     77 		return (error);
     78 
     79 	error = compat_13_sys_sigaltstack(p, &ua, retval);
     80 	if (error)
     81 		return (error);
     82 
     83 	if (SCARG(uap, oss)) {
     84 		error = copyin(nss13up, &ss13, sizeof *nss13up);
     85 		if (error)
     86 			return (error);
     87 		s32ss.ss_sp = (netbsd32_charp)(u_long)ss13.ss_sp;
     88 		s32ss.ss_size = ss13.ss_size;
     89 		s32ss.ss_flags = ss13.ss_flags;
     90 		error = copyout(&s32ss, (caddr_t)(u_long)SCARG(uap, nss), sizeof s32ss);
     91 		if (error)
     92 			return (error);
     93 	}
     94 
     95 	return (0);
     96 }
     97 
     98 
     99 int
    100 compat_13_netbsd32_sigprocmask(p, v, retval)
    101 	struct proc *p;
    102 	void *v;
    103 	register_t *retval;
    104 {
    105 	struct compat_13_netbsd32_sigprocmask_args /* {
    106 		syscallarg(int) how;
    107 		syscallarg(int) mask;
    108 	} */ *uap = v;
    109 	sigset13_t ness, oess;
    110 	sigset_t nbss, obss;
    111 	int error;
    112 
    113 	ness = SCARG(uap, mask);
    114 	native_sigset13_to_sigset(&ness, &nbss);
    115 	error = sigprocmask1(p, SCARG(uap, how), &nbss, &obss);
    116 	if (error)
    117 		return (error);
    118 	native_sigset_to_sigset13(&obss, &oess);
    119 	*retval = oess;
    120 	return (0);
    121 }
    122 
    123 int
    124 compat_13_netbsd32_sigsuspend(p, v, retval)
    125 	struct proc *p;
    126 	void *v;
    127 	register_t *retval;
    128 {
    129 	struct compat_13_netbsd32_sigsuspend_args /* {
    130 		syscallarg(sigset13_t) mask;
    131 	} */ *uap = v;
    132 	sigset13_t ess;
    133 	sigset_t bss;
    134 
    135 	ess = SCARG(uap, mask);
    136 	native_sigset13_to_sigset(&ess, &bss);
    137 	return (sigsuspend1(p, &bss));
    138 }
    139