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netbsd32_compat_13.c revision 1.16 
      1 /*	$NetBSD: netbsd32_compat_13.c,v 1.16 2007/02/09 21:55:22 ad 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/cdefs.h>
     32 __KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_13.c,v 1.16 2007/02/09 21:55:22 ad Exp $");
     33 
     34 #include <sys/param.h>
     35 #include <sys/systm.h>
     36 #include <sys/mount.h>
     37 #include <sys/proc.h>
     38 #include <sys/signal.h>
     39 #include <sys/signalvar.h>
     40 #include <sys/syscallargs.h>
     41 
     42 #include <compat/netbsd32/netbsd32.h>
     43 #include <compat/netbsd32/netbsd32_syscallargs.h>
     44 
     45 #include <compat/sys/stat.h>
     46 #include <compat/sys/signal.h>
     47 #include <compat/sys/signalvar.h>
     48 
     49 int
     50 compat_13_netbsd32_sigaltstack13(l, v, retval)
     51 	struct lwp *l;
     52 	void *v;
     53 	register_t *retval;
     54 {
     55 	struct proc *p = l->l_proc;
     56 	struct compat_13_netbsd32_sigaltstack13_args /* {
     57 		syscallarg(const netbsd32_sigaltstack13p_t) nss;
     58 		syscallarg(netbsd32_sigaltstack13p_t) oss;
     59 	} */ *uap = v;
     60 	struct compat_13_sys_sigaltstack_args ua;
     61 	struct sigaltstack13 ss13, *nss13up, *oss13up;
     62 	struct netbsd32_sigaltstack13 s32ss;
     63 	caddr_t sg;
     64 	int error;
     65 
     66 	if (!SCARG(uap, nss))
     67 		return (EINVAL);
     68 
     69 	sg = stackgap_init(p, 0);
     70 
     71 	SCARG(&ua, nss) = nss13up = stackgap_alloc(p, &sg, sizeof(*nss13up));
     72 	if (SCARG(uap, oss))
     73 		SCARG(&ua, oss) = oss13up = stackgap_alloc(p, &sg, sizeof(*oss13up));
     74 	else
     75 		SCARG(&ua, oss) = NULL;
     76 
     77 	error = copyin((caddr_t)NETBSD32PTR64(SCARG(uap, nss)),
     78 	    &s32ss, sizeof s32ss);
     79 	if (error)
     80 		return (error);
     81 	ss13.ss_sp = (char *)NETBSD32PTR64(s32ss.ss_sp);
     82 	ss13.ss_size = s32ss.ss_size;
     83 	ss13.ss_flags = s32ss.ss_flags;
     84 	error = copyout(&ss13, nss13up, sizeof *nss13up);
     85 	if (error)
     86 		return (error);
     87 
     88 	error = compat_13_sys_sigaltstack(l, &ua, retval);
     89 	if (error)
     90 		return (error);
     91 
     92 	if (SCARG(uap, oss)) {
     93 		error = copyin(nss13up, &ss13, sizeof *nss13up);
     94 		if (error)
     95 			return (error);
     96 		s32ss.ss_sp = (netbsd32_charp)(u_long)ss13.ss_sp;
     97 		s32ss.ss_size = ss13.ss_size;
     98 		s32ss.ss_flags = ss13.ss_flags;
     99 		error = copyout(&s32ss, (caddr_t)NETBSD32PTR64(SCARG(uap, nss)),
    100 		    sizeof s32ss);
    101 		if (error)
    102 			return (error);
    103 	}
    104 
    105 	return (0);
    106 }
    107 
    108 
    109 int
    110 compat_13_netbsd32_sigprocmask(l, v, retval)
    111 	struct lwp *l;
    112 	void *v;
    113 	register_t *retval;
    114 {
    115 	struct compat_13_netbsd32_sigprocmask_args /* {
    116 		syscallarg(int) how;
    117 		syscallarg(int) mask;
    118 	} */ *uap = v;
    119 	sigset13_t ness, oess;
    120 	sigset_t nbss, obss;
    121 	int error;
    122 
    123 	ness = SCARG(uap, mask);
    124 	native_sigset13_to_sigset(&ness, &nbss);
    125 	error = sigprocmask1(l, SCARG(uap, how), &nbss, &obss);
    126 	if (error)
    127 		return (error);
    128 	native_sigset_to_sigset13(&obss, &oess);
    129 	*retval = oess;
    130 	return (0);
    131 }
    132 
    133 int
    134 compat_13_netbsd32_sigsuspend(l, v, retval)
    135 	struct lwp *l;
    136 	void *v;
    137 	register_t *retval;
    138 {
    139 	struct compat_13_netbsd32_sigsuspend_args /* {
    140 		syscallarg(sigset13_t) mask;
    141 	} */ *uap = v;
    142 	sigset13_t ess;
    143 	sigset_t bss;
    144 
    145 	ess = SCARG(uap, mask);
    146 	native_sigset13_to_sigset(&ess, &bss);
    147 	return (sigsuspend1(l, &bss));
    148 }
    149