NetBSD/sys/compat/common/compat_file.c

897 lines
19 KiB
C

/* $NetBSD: compat_file.c,v 1.12 2004/04/21 01:05:36 christos 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 1.12 2004/04/21 01:05:36 christos 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/sa.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(p, &sg, SCARG(uap, path));
else
CHECK_ALT_EXIST(p, &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(p, &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(p, &sg, SCARG(uap, path));
CHECK_ALT_CREAT(p, &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(p, &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(p, &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(p, &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(p, &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(p, &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(p, &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(p, &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(p, &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(p, &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(p, &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(p, &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(p, &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(p, &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(p, &sg, SCARG(uap, path));
CHECK_ALT_CREAT(p, &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(p, &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(p, &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(p, &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(p, &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, p);
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(p, 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));
free((void *)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_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(p, &sg, SCARG(uap, from));
CHECK_ALT_CREAT(p, &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(p, &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(p, &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(p, &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(p, &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(p, &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(p, &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(p, &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 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(p, &sg, SCARG(uap, fname));
return 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(p, &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(p, &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(p, &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(p, &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(p, &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(p, &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(p, &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(p, &sg, SCARG(uap, path));
return sys_lutimes(l, uap, retval);
}
int
bsd_sys___stat13(l, v, retval)
struct lwp *l;
void *v;
register_t *retval;
{
struct sys___stat13_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(p, &sg, SCARG(uap, path));
return sys___stat13(l, uap, retval);
}
int
bsd_sys___lstat13(l, v, retval)
struct lwp *l;
void *v;
register_t *retval;
{
struct sys___lstat13_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(p, &sg, SCARG(uap, path));
return sys___lstat13(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(p, &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(p, &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(p, &sg, SCARG(uap, path));
return sys_lchflags(l, uap, retval);
}
#endif /* defined(COMPAT_DARWIN) */