102 lines
3.3 KiB
C
102 lines
3.3 KiB
C
/* $NetBSD: ptyfs.c,v 1.2 2004/12/14 03:10:23 atatat Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2004 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Christos Zoulas.
|
|
*
|
|
* 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. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__RCSID("$NetBSD: ptyfs.c,v 1.2 2004/12/14 03:10:23 atatat Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <sys/time.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/user.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/vnode.h>
|
|
#include <sys/mount.h>
|
|
|
|
#define _KERNEL
|
|
#include <miscfs/specfs/specdev.h>
|
|
#include <fs/ptyfs/ptyfs.h>
|
|
#undef _KERNEL
|
|
|
|
#include <paths.h>
|
|
#include <err.h>
|
|
#include <kvm.h>
|
|
#include <dirent.h>
|
|
#include "fstat.h"
|
|
|
|
int
|
|
ptyfs_filestat(struct vnode *vp, struct filestat *fsp)
|
|
{
|
|
struct ptyfsnode pn;
|
|
struct specinfo si;
|
|
struct mount mt;
|
|
|
|
if (!KVM_READ(VTOPTYFS(vp), &pn, sizeof(pn))) {
|
|
dprintf("can't read ptyfs_node at %p for pid %d",
|
|
VTOPTYFS(vp), Pid);
|
|
return 0;
|
|
}
|
|
if (!KVM_READ(vp->v_mount, &mt, sizeof(mt))) {
|
|
dprintf("can't read mount at %p for pid %d",
|
|
VTOPTYFS(vp), Pid);
|
|
return 0;
|
|
}
|
|
fsp->fsid = mt.mnt_stat.f_fsidx.__fsid_val[0];
|
|
fsp->fileid = (long)pn.ptyfs_fileno;
|
|
fsp->mode = pn.ptyfs_mode;
|
|
fsp->size = 0;
|
|
switch (pn.ptyfs_type) {
|
|
case PTYFSpts:
|
|
case PTYFSptc:
|
|
if (!KVM_READ(vp->v_specinfo, &si, sizeof(si))) {
|
|
dprintf("can't read specinfo at %p for pid %d",
|
|
VTOPTYFS(vp), Pid);
|
|
return 0;
|
|
}
|
|
fsp->rdev = si.si_rdev;
|
|
fsp->mode |= S_IFCHR;
|
|
break;
|
|
case PTYFSroot:
|
|
fsp->rdev = 0;
|
|
fsp->mode |= S_IFDIR;
|
|
break;
|
|
}
|
|
|
|
return 1;
|
|
}
|