NetBSD/sys/compat/common/compat_file.c

/*	$NetBSD: compat_file.c,v 1.20 2007/02/09 21:55:16 ad Exp $ */

/*-
 * Copyright (c) 2002 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Emmanuel Dreyfus.
 *
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *        This product includes software developed by the NetBSD
 *        Foundation, Inc. and its contributors.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission
 *
 * 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: compat_file.c,v 1.20 2007/02/09 21:55:16 ad Exp $");

#include "opt_compat_darwin.h"
#include "opt_nfsserver.h"
#include "opt_nfs.h"

/* Build this file only if we have an emulation that needs it */
#if (defined(COMPAT_DARWIN)) /* Add COMPAT_FREEBSD and others here */

#if defined(_KERNEL_OPT)
#include "fs_nfs.h"
#endif

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/stat.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/ioctl.h>
#include <sys/kernel.h>
#include <sys/mount.h>
#include <sys/namei.h>
#include <sys/domain.h>
#include <sys/protosw.h>
#include <sys/socketvar.h>
#include <sys/un.h>

#include <uvm/uvm_extern.h>

#include <sys/syscallargs.h>

#include <compat/common/compat_file.h>
#include <compat/common/compat_util.h>

int
bsd_sys_open(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_open_args /* {
		syscallarg(char *) path;
		syscallarg(int) flags;
		syscallarg(int) mode;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	if (SCARG(uap, flags) & O_CREAT)
		CHECK_ALT_CREAT(l, &sg, SCARG(uap, path));
	else
		CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_open(l, uap, retval);
}

int
bsd_compat_43_sys_creat(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct compat_43_sys_creat_args /* {
		syscallarg(char *) path;
		syscallarg(int) mode;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg  = stackgap_init(p, 0);

	CHECK_ALT_CREAT(l, &sg, SCARG(uap, path));
	return compat_43_sys_creat(l, uap, retval);
}

int
bsd_sys_link(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_link_args /* {
		syscallarg(char *) path;
		syscallarg(char *) link;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	CHECK_ALT_CREAT(l, &sg, SCARG(uap, link));
	return sys_link(l, uap, retval);
}

int
bsd_sys_unlink(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_unlink_args /* {
		syscallarg(char *) path;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_unlink(l, uap, retval);
}

int
bsd_sys_chdir(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_chdir_args /* {
		syscallarg(char *) path;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_chdir(l, uap, retval);
}

int
bsd_sys_mknod(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_mknod_args /* {
		syscallarg(char *) path;
		syscallarg(int) mode;
		syscallarg(int) dev;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_CREAT(l, &sg, SCARG(uap, path));
	return sys_mknod(l, uap, retval);
}

int
bsd_sys_chmod(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_chmod_args /* {
		syscallarg(char *) path;
		syscallarg(int) mode;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_chmod(l, uap, retval);
}

int
bsd_sys_chown(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_chown_args /* {
		syscallarg(char *) path;
		syscallarg(int) uid;
		syscallarg(int) gid;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_chown(l, uap, retval);
}

int
bsd_sys_mount(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_mount_args /* {
		syscallarg(char *) type;
		syscallarg(char *) path;
		syscallarg(int) flags;
		syscallarg(void *) data;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_mount(l, uap, retval);
}

int
bsd_sys_unmount(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_unmount_args /* {
		syscallarg(char *) path;
		syscallarg(int) flags;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_unmount(l, uap, retval);
}

int
bsd_sys_access(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_access_args /* {
		syscallarg(char *) path;
		syscallarg(int) flags;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_access(l, uap, retval);
}

int
bsd_sys_chflags(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_chflags_args /* {
		syscallarg(char *) path;
		syscallarg(int) flags;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_chflags(l, uap, retval);
}

int
bsd_compat_43_sys_stat(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct compat_43_sys_stat_args /* {
		syscallarg(char *) path;
		syscallarg(struct stat43 *) ub;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return compat_43_sys_stat(l, uap, retval);
}

int
bsd_compat_43_sys_lstat(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct compat_43_sys_lstat_args /* {
		syscallarg(char *) path;
		syscallarg(struct stat43 *) ub;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return compat_43_sys_lstat(l, uap, retval);
}

int
bsd_sys_acct(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_acct_args /* {
		syscallarg(char *) path;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_acct(l, uap, retval);
}

int
bsd_sys_revoke(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_revoke_args /* {
		syscallarg(char *) path;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_revoke(l, uap, retval);
}

int
bsd_sys_symlink(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_symlink_args /* {
		syscallarg(char *) path;
		syscallarg(char *) link;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	CHECK_ALT_CREAT(l, &sg, SCARG(uap, link));
	return sys_symlink(l, uap, retval);
}

int
bsd_sys_readlink(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_readlink_args /* {
		syscallarg(char *) path;
		syscallarg(char *) buf;
		syscallarg(int) count;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_SYMLINK(l, &sg, SCARG(uap, path));
	return sys_readlink(l, uap, retval);
}

int
bsd_sys_execve(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_execve_args /* {
		syscallarg(char *) path;
		syscallarg(char **) argp;
		syscallarg(char **) envp;
	} */ *uap = v;
	struct sys_execve_args ap;
	struct proc *p = l->l_proc;
	caddr_t sg;

	sg = stackgap_init(p, 0);
	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));

	SCARG(&ap, path) = SCARG(uap, path);
	SCARG(&ap, argp) = SCARG(uap, argp);
	SCARG(&ap, envp) = SCARG(uap, envp);

	return sys_execve(l, &ap, retval);
}

int
bsd_sys_chroot(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_chroot_args /* {
		syscallarg(char *) path;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_chroot(l, uap, retval);
}

int
bsd_compat_12_sys_swapon(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct compat_12_sys_swapon_args /* {
		syscallarg(char *) name;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, name));
	return compat_12_sys_swapon(l, uap, retval);
}

int
bsd_sys_bind(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_bind_args /* {
		syscallarg(int) s;
		syscallarg(struct sockaddr *) name;
		syscallarg(unsigned int) namelen;
	} */ *uap = v;
	struct sys_bind_args cup;
	struct proc *p = l->l_proc;
	struct file *fp;
	struct socket *so;
	struct sockaddr_un sun;
	struct sockaddr_un *usun;
	const char *name;
	caddr_t sg;
	int error;
	extern struct domain unixdomain;
	char namebuf[sizeof(sun.sun_path) + 1];

	if (SCARG(uap, namelen) > UCHAR_MAX)
		return EINVAL;

	if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0)
		return error;

	so = (struct socket *)fp->f_data;
	error = so->so_proto->pr_domain != &unixdomain;
	FILE_UNUSE(fp, l);
	if (error)
		return sys_bind(l, uap, retval);

	/*
	 * Check for an alternate path.
	 */
	if ((error = copyin(SCARG(uap, name), &sun, sizeof(sun))) != 0)
		return error;

	(void)strncpy(namebuf, sun.sun_path, sizeof(namebuf));
	namebuf[sizeof(namebuf) - 1] = '\0';
	if ((error = emul_find(l, NULL, p->p_emul->e_path,
	    namebuf, &name, CHECK_ALT_FL_CREAT)) != 0)
		return error;

	if (strlen(name) >= sizeof(sun.sun_path))
		error = ENAMETOOLONG;
	(void)strncpy(sun.sun_path, name, sizeof(sun.sun_path));
	/*XXXUNCONST*/
	free(__UNCONST(name), M_TEMP);
	if (error)
		return error;

	/*
	 * Rebuild a new struct sockaddr_un and store it in userspace.
	 */
	sg = stackgap_init(p, 0);
	usun = stackgap_alloc(p, &sg, sizeof(*usun));
	if ((error = copyout(&sun, usun, sizeof(*usun))) != 0)
		return error;

	SCARG(&cup, s) = SCARG(uap, s);
	SCARG(&cup, name) = (struct sockaddr *)usun;
	SCARG(&cup, namelen) = sizeof(*usun);

	return sys_bind(l, &cup, retval);
}

int
bsd_sys_connect(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_connect_args /* {
		syscallarg(int) s;
		syscallarg(struct sockaddr *) name;
		syscallarg(unsigned int) namelen;
	} */ *uap = v;
	struct sys_connect_args cup;
	struct proc *p = l->l_proc;
	struct file *fp;
	struct socket *so;
	struct sockaddr_un sun;
	struct sockaddr_un *usun;
	const char *name;
	caddr_t sg;
	int error;
	extern struct domain unixdomain;
	char namebuf[sizeof(sun.sun_path) + 1];

	if (SCARG(uap, namelen) > UCHAR_MAX)
		return EINVAL;

	if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0)
		return error;

	so = (struct socket *)fp->f_data;
	error = so->so_proto->pr_domain != &unixdomain;
	FILE_UNUSE(fp, l);
	if (error)
		return sys_connect(l, uap, retval);

	/*
	 * Check for an alternate path.
	 */
	if ((error = copyin(SCARG(uap, name), &sun, sizeof(sun))) != 0)
		return error;

	(void)strncpy(namebuf, sun.sun_path, sizeof(namebuf));
	namebuf[sizeof(namebuf) - 1] = '\0';
	name = namebuf;
	CHECK_ALT_EXIST(l, NULL, name);

	if (strlen(name) >= sizeof(sun.sun_path))
		error = ENAMETOOLONG;
	(void)strncpy(sun.sun_path, name, sizeof(sun.sun_path));
	if (name != namebuf)
		/*XXXUNCONST*/
		free(__UNCONST(name), M_TEMP);
	if (error)
		return sys_connect(l, uap, retval);

	/*
	 * Rebuild a new struct sockaddr_un and store it in userspace.
	 */
	sg = stackgap_init(p, 0);
	usun = stackgap_alloc(p, &sg, sizeof(*usun));
	if ((error = copyout(&sun, usun, sizeof(*usun))) != 0)
		return error;

	SCARG(&cup, s) = SCARG(uap, s);
	SCARG(&cup, name) = (struct sockaddr *)usun;
	SCARG(&cup, namelen) = sizeof(*usun);

	return sys_connect(l, &cup, retval);
}

int
bsd_sys_rename(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_rename_args /* {
		syscallarg(char *) from;
		syscallarg(char *) to;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, from));
	CHECK_ALT_CREAT(l, &sg, SCARG(uap, to));
	return sys_rename(l, uap, retval);
}

int
bsd_compat_43_sys_truncate(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct compat_43_sys_truncate_args /* {
		syscallarg(char *) path;
		syscallarg(long) length;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return compat_43_sys_truncate(l, uap, retval);
}

int
bsd_sys_mkfifo(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_mkfifo_args /* {
		syscallarg(char *) path;
		syscallarg(int) mode;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_CREAT(l, &sg, SCARG(uap, path));
	return sys_mkfifo(l, uap, retval);
}

int
bsd_sys_mkdir(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_mkdir_args /* {
		syscallarg(char *) path;
		syscallarg(int) mode;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_CREAT(l, &sg, SCARG(uap, path));
	return sys_mkdir(l, uap, retval);
}

int
bsd_sys_rmdir(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_rmdir_args /* {
		syscallarg(char *) path;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_rmdir(l, uap, retval);
}

int
bsd_sys_utimes(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_utimes_args /* {
		syscallarg(char *) path;
		syscallarg(struct timeval *) tptr;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_utimes(l, uap, retval);
}

int
bsd_sys_quotactl(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_quotactl_args /* {
		syscallarg(char *) path;
		syscallarg(int) cmd;
		syscallarg(int) uid;
		syscallarg(caddr_t) arg;
		struct proc *p = l->l_proc;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_quotactl(l, uap, retval);
}

int
bsd_sys_statfs(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct compat_20_sys_statfs_args /* {
		syscallarg(char *) path;
		syscallarg(struct statfs12 *) buf;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return compat_20_sys_statfs(l, uap, retval);
}

#if defined(NFS) || defined(NFSSERVER)
int
bsd_sys_getfh(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct compat_30_sys_getfh_args /* {
		syscallarg(char *) fname;
		syscallarg(fhandle_t *) fhp;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, fname));
	return compat_30_sys_getfh(l, uap, retval);
}
#endif /* NFS || NFSSERVER */

int
bsd_compat_12_sys_stat(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct compat_12_sys_stat_args /* {
		syscallarg(char *) path;
		syscallarg(struct stat12 *) ub;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return compat_12_sys_stat(l, uap, retval);
}

int
bsd_compat_12_sys_lstat(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct compat_12_sys_lstat_args /* {
		syscallarg(char *) path;
		syscallarg(struct stat12 *) ub;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return compat_12_sys_lstat(l, uap, retval);
}

int
bsd_sys_pathconf(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_pathconf_args /* {
		syscallarg(char *) path;
		syscallarg(int) name;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_pathconf(l, uap, retval);
}

int
bsd_sys_truncate(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_truncate_args /* {
		syscallarg(char *) path;
		syscallarg(int) pad;
		syscallarg(off_t) length;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_truncate(l, uap, retval);
}

int
bsd_sys_undelete(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_undelete_args /* {
		syscallarg(char *) path;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_undelete(l, uap, retval);
}

int
bsd_sys_lchmod(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_lchmod_args /* {
		syscallarg(char *) path;
		syscallarg(mode_t) mode;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_SYMLINK(l, &sg, SCARG(uap, path));
	return sys_lchmod(l, uap, retval);
}

int
bsd_sys_lchown(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_lchown_args /* {
		syscallarg(char *) path;
		syscallarg(int) uid;
		syscallarg(int) gid;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_SYMLINK(l, &sg, SCARG(uap, path));
	return sys_lchown(l, uap, retval);
}

int
bsd_sys_lutimes(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_lutimes_args /* {
		syscallarg(char *) path;
		syscallarg(struct timeval *) tptr;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_lutimes(l, uap, retval);
}

int
bsd_sys___stat30(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys___stat30_args /* {
		syscallarg(char *) path;
		syscallarg(struct stat *) ub;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys___stat30(l, uap, retval);
}

int
bsd_sys___lstat30(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys___lstat30_args /* {
		syscallarg(char *) path;
		syscallarg(struct stat *) ub;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys___lstat30(l, uap, retval);
}

int
bsd_sys___posix_chown(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys___posix_chown_args /* {
		syscallarg(char *) path;
		syscallarg(int) uid;
		syscallarg(int) gid;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys___posix_chown(l, uap, retval);
}

int
bsd_sys___posix_lchown(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys___posix_lchown_args /* {
		syscallarg(char *) path;
		syscallarg(int) uid;
		syscallarg(int) gid;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys___posix_lchown(l, uap, retval);
}

int
bsd_sys_lchflags(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct sys_lchflags_args /* {
		syscallarg(char *) path;
		syscallarg(int) flags;
	} */ *uap = v;
	struct proc *p = l->l_proc;
	caddr_t sg = stackgap_init(p, 0);

	CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
	return sys_lchflags(l, uap, retval);
}

#endif /* defined(COMPAT_DARWIN) */