mirror of
https://github.com/freebsd/freebsd-src
synced 2024-09-06 09:10:28 +00:00
fstyp(8): Detect exFAT filesystems
Simply detect the exFAT filesystem name in the Volume Boot Record (superblock). PR: 214908 Reported by: <vermaden at interia.pl>
This commit is contained in:
parent
68c3c0258d
commit
e266075649
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=312003
|
@ -3,7 +3,7 @@
|
|||
.include <src.opts.mk>
|
||||
|
||||
PROG= fstyp
|
||||
SRCS= cd9660.c ext2fs.c fstyp.c geli.c msdosfs.c ntfs.c ufs.c
|
||||
SRCS= cd9660.c exfat.c ext2fs.c fstyp.c geli.c msdosfs.c ntfs.c ufs.c
|
||||
|
||||
.if ${MK_ZFS} != "no"
|
||||
SRCS += zfs.c
|
||||
|
|
77
usr.sbin/fstyp/exfat.c
Normal file
77
usr.sbin/fstyp/exfat.c
Normal file
|
@ -0,0 +1,77 @@
|
|||
/*
|
||||
* Copyright (c) 2017 Conrad Meyer <cem@FreeBSD.org>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "fstyp.h"
|
||||
|
||||
struct exfat_vbr {
|
||||
char ev_jmp[3];
|
||||
char ev_fsname[8];
|
||||
char ev_zeros[53];
|
||||
uint64_t ev_part_offset;
|
||||
uint64_t ev_vol_length;
|
||||
uint32_t ev_fat_offset;
|
||||
uint32_t ev_fat_length;
|
||||
uint32_t ev_cluster_offset;
|
||||
uint32_t ev_cluster_count;
|
||||
uint32_t ev_rootdir_cluster;
|
||||
uint32_t ev_vol_serial;
|
||||
uint16_t ev_fs_revision;
|
||||
uint16_t ev_vol_flags;
|
||||
uint8_t ev_log_bytes_per_sect;
|
||||
uint8_t ev_log_sect_per_clust;
|
||||
uint8_t ev_num_fats;
|
||||
uint8_t ev_drive_sel;
|
||||
uint8_t ev_percent_used;
|
||||
} __packed;
|
||||
|
||||
int
|
||||
fstyp_exfat(FILE *fp, char *label, size_t size)
|
||||
{
|
||||
struct exfat_vbr *ev;
|
||||
|
||||
ev = (struct exfat_vbr *)read_buf(fp, 0, 512);
|
||||
if (ev == NULL || strncmp(ev->ev_fsname, "EXFAT ", 8) != 0)
|
||||
goto fail;
|
||||
|
||||
/*
|
||||
* Reading the volume label requires walking the root directory to look
|
||||
* for a special label file. Left as an exercise for the reader.
|
||||
*/
|
||||
free(ev);
|
||||
return (0);
|
||||
|
||||
fail:
|
||||
free(ev);
|
||||
return (1);
|
||||
}
|
|
@ -27,7 +27,7 @@
|
|||
.\"
|
||||
.\" $FreeBSD$
|
||||
.\"
|
||||
.Dd February 28, 2016
|
||||
.Dd January 12, 2017
|
||||
.Dt FSTYP 8
|
||||
.Os
|
||||
.Sh NAME
|
||||
|
@ -43,7 +43,7 @@
|
|||
The
|
||||
.Nm
|
||||
utility is used to determine the filesystem type on a given device.
|
||||
It can recognize ISO-9660, Ext2, FAT, NTFS, and UFS filesystems.
|
||||
It can recognize ISO-9660, exFAT, Ext2, FAT, NTFS, and UFS filesystems.
|
||||
When the
|
||||
.Fl u
|
||||
flag is specified,
|
||||
|
@ -61,6 +61,8 @@ as, respectively:
|
|||
.It
|
||||
cd9660
|
||||
.It
|
||||
exfat
|
||||
.It
|
||||
ext2fs
|
||||
.It
|
||||
geli
|
||||
|
|
|
@ -57,6 +57,7 @@ static struct {
|
|||
bool unmountable;
|
||||
} fstypes[] = {
|
||||
{ "cd9660", &fstyp_cd9660, false },
|
||||
{ "exfat", &fstyp_exfat, true },
|
||||
{ "ext2fs", &fstyp_ext2fs, false },
|
||||
{ "geli", &fstyp_geli, true },
|
||||
{ "msdosfs", &fstyp_msdosfs, false },
|
||||
|
|
|
@ -39,6 +39,7 @@ char *checked_strdup(const char *s);
|
|||
void rtrim(char *label, size_t size);
|
||||
|
||||
int fstyp_cd9660(FILE *fp, char *label, size_t size);
|
||||
int fstyp_exfat(FILE *fp, char *label, size_t size);
|
||||
int fstyp_ext2fs(FILE *fp, char *label, size_t size);
|
||||
int fstyp_geli(FILE *fp, char *label, size_t size);
|
||||
int fstyp_msdosfs(FILE *fp, char *label, size_t size);
|
||||
|
|
Loading…
Reference in a new issue