xref: /netbsd-src/sys/compat/netbsd32/netbsd32_select.c (revision a13c9853a06b563a66bb24f50e23ccc2287615ee)

/*	$NetBSD: netbsd32_select.c,v 1.20 2019/09/20 15:16:41 kamil Exp $	*/

/*
 * Copyright (c) 1998, 2001 Matthew R. Green
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: netbsd32_select.c,v 1.20 2019/09/20 15:16:41 kamil Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mount.h>
#include <sys/time.h>
#include <sys/vnode.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/poll.h>
#include <sys/select.h>
#include <sys/dirent.h>

#include <sys/proc.h>

#include <net/if.h>

#include <compat/netbsd32/netbsd32.h>
#include <compat/netbsd32/netbsd32_syscall.h>
#include <compat/netbsd32/netbsd32_syscallargs.h>
#include <compat/netbsd32/netbsd32_conv.h>

int
netbsd32___select50(struct lwp *l,
    const struct netbsd32___select50_args *uap, register_t *retval)
{
	/* {
		syscallarg(int) nd;
		syscallarg(netbsd32_fd_setp_t) in;
		syscallarg(netbsd32_fd_setp_t) ou;
		syscallarg(netbsd32_fd_setp_t) ex;
		syscallarg(netbsd32_timevalp_t) tv;
	} */
	int error;
	struct netbsd32_timeval tv32;
	struct timespec ats, *ts = NULL;

	if (SCARG_P32(uap, tv)) {
		error = copyin(SCARG_P32(uap, tv), &tv32, sizeof(tv32));
		if (error != 0)
			return error;

		if (tv32.tv_usec < 0 || tv32.tv_usec >= 1000000)
			return EINVAL;

		ats.tv_sec = tv32.tv_sec;
		ats.tv_nsec = tv32.tv_usec * 1000;
		ts = &ats;
	}

	return selcommon(retval, SCARG(uap, nd), SCARG_P32(uap, in),
	    SCARG_P32(uap, ou), SCARG_P32(uap, ex), ts, NULL);
}

int
netbsd32___pselect50(struct lwp *l,
    const struct netbsd32___pselect50_args *uap, register_t *retval)
{
	/* {
		syscallarg(int) nd;
		syscallarg(netbsd32_fd_setp_t) in;
		syscallarg(netbsd32_fd_setp_t) ou;
		syscallarg(netbsd32_fd_setp_t) ex;
		syscallarg(const netbsd32_timespecp_t) ts;
		syscallarg(const netbsd32_sigsetp_t) mask;
	} */
	int error;
	struct netbsd32_timespec ts32;
	struct timespec ats, *ts = NULL;
	sigset_t amask, *mask = NULL;

	if (SCARG_P32(uap, ts)) {
		error = copyin(SCARG_P32(uap, ts), &ts32, sizeof(ts32));
		if (error != 0)
			return error;
		netbsd32_to_timespec(&ts32, &ats);
		ts = &ats;
	}
	if (SCARG_P32(uap, mask)) {
		error = copyin(SCARG_P32(uap, mask), &amask, sizeof(amask));
		if (error != 0)
			return error;
		mask = &amask;
	}

	return selcommon(retval, SCARG(uap, nd), SCARG_P32(uap, in),
	    SCARG_P32(uap, ou), SCARG_P32(uap, ex), ts, mask);
}

int
netbsd32___pollts50(struct lwp *l, const struct netbsd32___pollts50_args *uap,
    register_t *retval)
{
	/* {
		syscallarg(struct netbsd32_pollfdp_t) fds;
		syscallarg(u_int) nfds;
		syscallarg(const netbsd32_timespecp_t) ts;
		syscallarg(const netbsd32_sigsetp_t) mask;
	} */
	int error;
	struct netbsd32_timespec ts32;
	struct timespec ats, *ts = NULL;
	sigset_t amask, *mask = NULL;

	if (SCARG_P32(uap, ts)) {
		error = copyin(SCARG_P32(uap, ts), &ts32, sizeof(ts32));
		if (error != 0)
			return error;
		netbsd32_to_timespec(&ts32, &ats);
		ts = &ats;
	}
	if (NETBSD32PTR64( SCARG(uap, mask))) {
		error = copyin(SCARG_P32(uap, mask), &amask, sizeof(amask));
		if (error != 0)
			return error;
		mask = &amask;
	}

	return pollcommon(retval, SCARG_P32(uap, fds),
	    SCARG(uap, nfds), ts, mask);
}