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/* $OpenBSD: netbsd_stat.c,v 1.17 2004/07/09 23:52:02 millert Exp $ */
/*
* Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
* (c) UNIX System Laboratories, Inc.
* All or some portions of this file are derived from material licensed
* to the University of California by American Telephone and Telegraph
* Co. or Unix System Laboratories, Inc. and are reproduced herein with
* the permission of UNIX System Laboratories, Inc.
*
* 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. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* @(#)vfs_syscalls.c 8.42 (Berkeley) 7/31/95
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/proc.h>
#include <sys/socketvar.h>
#include <sys/stat.h>
#include <sys/pipe.h>
#include <sys/mount.h>
#include <sys/namei.h>
#include <sys/vnode.h>
#include <sys/syscallargs.h>
#include <compat/netbsd/netbsd_types.h>
#include <compat/netbsd/netbsd_stat.h>
#include <compat/netbsd/netbsd_signal.h>
#include <compat/netbsd/netbsd_syscallargs.h>
#include <compat/netbsd/netbsd_util.h>
static void openbsd_to_netbsd_stat(struct stat *, struct netbsd_stat *);
static void
openbsd_to_netbsd_stat(obst, nbst)
struct stat *obst;
struct netbsd_stat *nbst;
{
bzero(nbst, sizeof(*nbst));
nbst->st_dev = obst->st_dev;
nbst->st_ino = obst->st_ino;
nbst->st_mode = obst->st_mode;
nbst->st_nlink = obst->st_nlink;
nbst->st_uid = obst->st_uid;
nbst->st_gid = obst->st_gid;
nbst->st_rdev = obst->st_rdev;
#if !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)
nbst->st_atimespec.tv_sec = obst->st_atimespec.tv_sec;
nbst->st_atimespec.tv_nsec = obst->st_atimespec.tv_nsec;
nbst->st_mtimespec.tv_sec = obst->st_mtimespec.tv_sec;
nbst->st_mtimespec.tv_nsec = obst->st_mtimespec.tv_nsec;
nbst->st_ctimespec.tv_sec = obst->st_ctimespec.tv_sec;
nbst->st_ctimespec.tv_nsec = obst->st_ctimespec.tv_nsec;
#else
nbst->st_atime = obst->st_atime;
nbst->st_atimensec = obst->st_atimensec;
nbst->st_mtime = obst->st_mtime;
nbst->st_mtimensec = obst->st_mtimensec;
nbst->st_ctime = obst->st_ctime;
nbst->st_ctimensec = obst->st_ctimensec;
#endif
nbst->st_size = obst->st_size;
nbst->st_blocks = obst->st_blocks;
nbst->st_blksize = obst->st_blksize;
nbst->st_flags = obst->st_flags;
nbst->st_gen = obst->st_gen;
bcopy(obst->st_qspare, nbst->st_qspare, sizeof(obst->st_qspare));
}
/*
* Get file status; this version follows links.
*/
/* ARGSUSED */
int
netbsd_sys___stat13(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
register struct netbsd_sys___stat13_args /* {
syscallarg(char *) path;
syscallarg(struct netbsd_stat *) nsb;
} */ *uap = v;
struct netbsd_stat nsb;
struct stat sb;
int error;
struct nameidata nd;
caddr_t sg = stackgap_init(p->p_emul);
NETBSD_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
NDINIT(&nd, LOOKUP, FOLLOW | LOCKLEAF, UIO_USERSPACE,
SCARG(uap, path), p);
if ((error = namei(&nd)) != 0)
return (error);
error = vn_stat(nd.ni_vp, &sb, p);
vput(nd.ni_vp);
if (error)
return (error);
/* Don't let non-root see generation numbers (for NFS security) */
if (suser(p, 0))
sb.st_gen = 0;
openbsd_to_netbsd_stat(&sb, &nsb);
error = copyout(&nsb, SCARG(uap, ub), sizeof(nsb));
return (error);
}
/*
* Get file status; this version does not follow links.
*/
/* ARGSUSED */
int
netbsd_sys___lstat13(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
register struct netbsd_sys___lstat13_args /* {
syscallarg(char *) path;
syscallarg(struct netbsd_stat *) ub;
} */ *uap = v;
struct netbsd_stat nsb;
struct stat sb;
int error;
struct nameidata nd;
caddr_t sg = stackgap_init(p->p_emul);
NETBSD_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
NDINIT(&nd, LOOKUP, NOFOLLOW | LOCKLEAF, UIO_USERSPACE,
SCARG(uap, path), p);
if ((error = namei(&nd)) != 0)
return (error);
error = vn_stat(nd.ni_vp, &sb, p);
vput(nd.ni_vp);
if (error)
return (error);
/* Don't let non-root see generation numbers (for NFS security) */
if (suser(p, 0))
sb.st_gen = 0;
openbsd_to_netbsd_stat(&sb, &nsb);
error = copyout(&nsb, SCARG(uap, ub), sizeof(nsb));
return (error);
}
/*
* Return status information about a file descriptor.
*/
/* ARGSUSED */
int
netbsd_sys___fstat13(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
register struct netbsd_sys___fstat13_args /* {
syscallarg(int) fd;
syscallarg(struct netbsd_stat *) ub;
} */ *uap = v;
int fd = SCARG(uap, fd);
register struct filedesc *fdp = p->p_fd;
register struct file *fp;
struct netbsd_stat nsb;
struct stat sb;
int error;
if ((fp = fd_getfile(fdp, fd)) == NULL)
return (EBADF);
FREF(fp);
error = (*fp->f_ops->fo_stat)(fp, &sb, p);
FRELE(fp);
if (error)
return (error);
openbsd_to_netbsd_stat(&sb, &nsb);
error = copyout(&nsb, SCARG(uap, ub), sizeof(nsb));
return (error);
}
int
compat_43_netbsd_sys_stat(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct compat_43_netbsd_sys_stat_args /* {
syscallarg(char *) path;
syscallarg(struct stat43 *) ub;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
NETBSD_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
return compat_43_sys_stat(p, uap, retval);
}
int
compat_43_netbsd_sys_lstat(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct compat_43_netbsd_sys_lstat_args /* {
syscallarg(char *) path;
syscallarg(struct stat43 *) ub;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
NETBSD_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
return compat_43_sys_lstat(p, uap, retval);
}
int
netbsd_sys_stat(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct netbsd_sys_stat_args /* {
syscallarg(char *) path;
syscallarg(struct stat *) ub;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
NETBSD_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
return sys_stat(p, uap, retval);
}
int
netbsd_sys_lstat(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct netbsd_sys_lstat_args /* {
syscallarg(char *) path;
syscallarg(struct stat *) ub;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
NETBSD_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
return sys_lstat(p, uap, retval);
}
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