freebsd-dev/sys/i386/ibcs2/ibcs2_stat.c
John Baldwin 0ba59a6f70 - Implement ibcs2_emul_find() using kern_alternate_path(). This changes
the semantics in that the returned filename to use is now a kernel
  pointer rather than a user space pointer.  This required changing the
  arguments to the CHECKALT*() macros some and changing the various system
  calls that used pathnames to use the kern_foo() functions that can accept
  kernel space filename pointers instead of calling the system call
  directly.
- Use kern_open(), kern_access(), kern_execve(), kern_mkfifo(), kern_mknod(),
  kern_setitimer(), kern_getrusage(), kern_utimes(), kern_unlink(),
  kern_chdir(), kern_chmod(), kern_chown(), kern_symlink(), kern_readlink(),
  kern_select(), kern_statfs(), kern_fstatfs(), kern_stat(), kern_lstat(),
  kern_fstat().
- Drop the unused 'uap' argument from spx_open().
- Replace a stale duplication of vn_access() in xenix_access() lacking
  recent additions such as MAC checks, etc. with a call to kern_access().
2005-02-07 22:02:18 +00:00

237 lines
6.0 KiB
C

/*-
* Copyright (c) 1995 Scott Bartram
* Copyright (c) 1995 Steven Wallace
* 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.
* 3. 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>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/filedesc.h>
#include <sys/jail.h>
#include <sys/kernel.h>
#include <sys/mount.h>
#include <sys/malloc.h>
#include <sys/vnode.h>
#include <sys/syscallsubr.h>
#include <sys/sysctl.h>
#include <sys/sysproto.h>
#include <i386/ibcs2/ibcs2_signal.h>
#include <i386/ibcs2/ibcs2_stat.h>
#include <i386/ibcs2/ibcs2_statfs.h>
#include <i386/ibcs2/ibcs2_proto.h>
#include <i386/ibcs2/ibcs2_util.h>
#include <i386/ibcs2/ibcs2_utsname.h>
static void bsd_stat2ibcs_stat(struct stat *, struct ibcs2_stat *);
static int cvt_statfs(struct statfs *, caddr_t, int);
static void
bsd_stat2ibcs_stat(st, st4)
struct stat *st;
struct ibcs2_stat *st4;
{
bzero(st4, sizeof(*st4));
st4->st_dev = (ibcs2_dev_t)st->st_dev;
st4->st_ino = (ibcs2_ino_t)st->st_ino;
st4->st_mode = (ibcs2_mode_t)st->st_mode;
st4->st_nlink= (ibcs2_nlink_t)st->st_nlink;
st4->st_uid = (ibcs2_uid_t)st->st_uid;
st4->st_gid = (ibcs2_gid_t)st->st_gid;
st4->st_rdev = (ibcs2_dev_t)st->st_rdev;
if (st->st_size < (quad_t)1 << 32)
st4->st_size = (ibcs2_off_t)st->st_size;
else
st4->st_size = -2;
st4->st_atim = (ibcs2_time_t)st->st_atime;
st4->st_mtim = (ibcs2_time_t)st->st_mtime;
st4->st_ctim = (ibcs2_time_t)st->st_ctime;
}
static int
cvt_statfs(sp, buf, len)
struct statfs *sp;
caddr_t buf;
int len;
{
struct ibcs2_statfs ssfs;
if (len < 0)
return (EINVAL);
else if (len > sizeof(ssfs))
len = sizeof(ssfs);
bzero(&ssfs, sizeof ssfs);
ssfs.f_fstyp = 0;
ssfs.f_bsize = sp->f_bsize;
ssfs.f_frsize = 0;
ssfs.f_blocks = sp->f_blocks;
ssfs.f_bfree = sp->f_bfree;
ssfs.f_files = sp->f_files;
ssfs.f_ffree = sp->f_ffree;
ssfs.f_fname[0] = 0;
ssfs.f_fpack[0] = 0;
return copyout((caddr_t)&ssfs, buf, len);
}
int
ibcs2_statfs(td, uap)
struct thread *td;
struct ibcs2_statfs_args *uap;
{
struct statfs sf;
char *path;
int error;
CHECKALTEXIST(td, uap->path, &path);
error = kern_statfs(td, path, UIO_SYSSPACE, &sf);
free(path, M_TEMP);
if (error)
return (error);
return cvt_statfs(&sf, (caddr_t)uap->buf, uap->len);
}
int
ibcs2_fstatfs(td, uap)
struct thread *td;
struct ibcs2_fstatfs_args *uap;
{
struct statfs sf;
int error;
error = kern_fstatfs(td, uap->fd, &sf);
if (error)
return (error);
return cvt_statfs(&sf, (caddr_t)uap->buf, uap->len);
}
int
ibcs2_stat(td, uap)
struct thread *td;
struct ibcs2_stat_args *uap;
{
struct ibcs2_stat ibcs2_st;
struct stat st;
char *path;
int error;
CHECKALTEXIST(td, uap->path, &path);
error = kern_stat(td, path, UIO_SYSSPACE, &st);
free(path, M_TEMP);
if (error)
return (error);
bsd_stat2ibcs_stat(&st, &ibcs2_st);
return copyout((caddr_t)&ibcs2_st, (caddr_t)uap->st,
ibcs2_stat_len);
}
int
ibcs2_lstat(td, uap)
struct thread *td;
struct ibcs2_lstat_args *uap;
{
struct ibcs2_stat ibcs2_st;
struct stat st;
char *path;
int error;
CHECKALTEXIST(td, uap->path, &path);
error = kern_lstat(td, path, UIO_SYSSPACE, &st);
free(path, M_TEMP);
if (error)
return (error);
bsd_stat2ibcs_stat(&st, &ibcs2_st);
return copyout((caddr_t)&ibcs2_st, (caddr_t)uap->st,
ibcs2_stat_len);
}
int
ibcs2_fstat(td, uap)
struct thread *td;
struct ibcs2_fstat_args *uap;
{
struct ibcs2_stat ibcs2_st;
struct stat st;
int error;
error = kern_fstat(td, uap->fd, &st);
if (error)
return (error);
bsd_stat2ibcs_stat(&st, &ibcs2_st);
return copyout((caddr_t)&ibcs2_st, (caddr_t)uap->st,
ibcs2_stat_len);
}
int
ibcs2_utssys(td, uap)
struct thread *td;
struct ibcs2_utssys_args *uap;
{
switch (uap->flag) {
case 0: /* uname(2) */
{
char machine_name[9], *p;
struct ibcs2_utsname sut;
bzero(&sut, ibcs2_utsname_len);
strncpy(sut.sysname,
IBCS2_UNAME_SYSNAME, sizeof(sut.sysname) - 1);
strncpy(sut.release,
IBCS2_UNAME_RELEASE, sizeof(sut.release) - 1);
strncpy(sut.version,
IBCS2_UNAME_VERSION, sizeof(sut.version) - 1);
getcredhostname(td->td_ucred, machine_name,
sizeof(machine_name) - 1);
p = index(machine_name, '.');
if ( p )
*p = '\0';
strncpy(sut.nodename, machine_name, sizeof(sut.nodename) - 1);
strncpy(sut.machine, machine, sizeof(sut.machine) - 1);
DPRINTF(("IBCS2 uname: sys=%s rel=%s ver=%s node=%s mach=%s\n",
sut.sysname, sut.release, sut.version, sut.nodename,
sut.machine));
return copyout((caddr_t)&sut, (caddr_t)uap->a1,
ibcs2_utsname_len);
}
case 2: /* ustat(2) */
{
return ENOSYS; /* XXX - TODO */
}
default:
return ENOSYS;
}
}