mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
913111f124
PR: bin/53515 Submitted by: Lukas Ertl <l.ertl@univie.ac.at> Approved by: jmallett
96 lines
2.8 KiB
C
96 lines
2.8 KiB
C
/*
|
|
* Copyright (c) 2002 Juli Mallett. All rights reserved.
|
|
*
|
|
* This software was written by Juli Mallett <jmallett@FreeBSD.org> for the
|
|
* FreeBSD project. Redistribution and use in source and binary forms, with
|
|
* or without modification, are permitted provided that the following
|
|
* conditions are met:
|
|
*
|
|
* 1. Redistribution of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
* 2. Redistribution 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.
|
|
*
|
|
* 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/mount.h>
|
|
#include <sys/disklabel.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <ufs/ufs/ufsmount.h>
|
|
#include <ufs/ufs/dinode.h>
|
|
#include <ufs/ffs/fs.h>
|
|
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include <libufs.h>
|
|
|
|
int
|
|
getino(struct uufsd *disk, void **dino, ino_t inode, int *mode)
|
|
{
|
|
ino_t min, max;
|
|
caddr_t inoblock;
|
|
struct ufs1_dinode *dp1;
|
|
struct ufs2_dinode *dp2;
|
|
struct fs *fs;
|
|
|
|
ERROR(disk, NULL);
|
|
|
|
fs = &disk->d_fs;
|
|
inoblock = disk->d_inoblock;
|
|
min = disk->d_inomin;
|
|
max = disk->d_inomax;
|
|
|
|
if (inoblock == NULL) {
|
|
inoblock = malloc(fs->fs_bsize);
|
|
if (inoblock == NULL) {
|
|
ERROR(disk, "unable to allocate inode block");
|
|
return (-1);
|
|
}
|
|
disk->d_inoblock = inoblock;
|
|
}
|
|
if (inode >= min && inode < max)
|
|
goto gotit;
|
|
bread(disk, fsbtodb(fs, ino_to_fsba(fs, inode)), inoblock,
|
|
fs->fs_bsize);
|
|
disk->d_inomin = min = inode - (inode % INOPB(fs));
|
|
disk->d_inomax = max = min + INOPB(fs);
|
|
gotit: switch (disk->d_ufs) {
|
|
case 1:
|
|
dp1 = &((struct ufs1_dinode *)inoblock)[inode - min];
|
|
*mode = dp1->di_mode & IFMT;
|
|
*dino = dp1;
|
|
return (0);
|
|
case 2:
|
|
dp2 = &((struct ufs2_dinode *)inoblock)[inode - min];
|
|
*mode = dp2->di_mode & IFMT;
|
|
*dino = dp2;
|
|
return (0);
|
|
default:
|
|
break;
|
|
}
|
|
ERROR(disk, "unknown UFS filesystem type");
|
|
return (-1);
|
|
}
|