9313936769
(unless someone tries to use libufs support functions without using _fillout or _ctor to construct a uufsd.) Obtained from: jmallett_libufs Perforce branch.
120 lines
2.7 KiB
C
120 lines
2.7 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>
|
|
|
|
struct uufsd *
|
|
ufs_disk_ctor(const char *name)
|
|
{
|
|
struct uufsd *new;
|
|
|
|
DEBUG(NULL);
|
|
|
|
new = malloc(sizeof(*new));
|
|
if (new == NULL) {
|
|
DEBUG(NULL);
|
|
return NULL;
|
|
}
|
|
|
|
if (ufs_disk_fillout(new, name) == -1) {
|
|
DEBUG(NULL);
|
|
free(new);
|
|
return NULL;
|
|
}
|
|
|
|
return new;
|
|
}
|
|
|
|
void
|
|
ufs_disk_dtor(struct uufsd **disk)
|
|
{
|
|
DEBUG(NULL);
|
|
ufs_disk_close(*disk);
|
|
free(*disk);
|
|
*disk = NULL;
|
|
}
|
|
|
|
int
|
|
ufs_disk_close(struct uufsd *disk)
|
|
{
|
|
DEBUG(NULL);
|
|
close(disk->d_fd);
|
|
if (disk->d_inoblock != NULL) {
|
|
free(disk->d_inoblock);
|
|
disk->d_inoblock = NULL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ufs_disk_fillout(struct uufsd *disk, const char *name)
|
|
{
|
|
int fd;
|
|
|
|
DEBUG(NULL);
|
|
|
|
fd = open(name, O_RDONLY);
|
|
if (fd == -1) {
|
|
DEBUG("open");
|
|
return -1;
|
|
}
|
|
|
|
disk->d_bsize = 1;
|
|
disk->d_fd = fd;
|
|
disk->d_inoblock = NULL;
|
|
disk->d_inomin = 0;
|
|
disk->d_inomax = 0;
|
|
disk->d_name = name;
|
|
disk->d_ufs = 0;
|
|
|
|
if (sbread(disk) == -1) {
|
|
DEBUG(NULL);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|