This commit was generated by cvs2svn to compensate for changes in r12102,
which included commits to RCS files with non-trunk default branches.
This commit is contained in:
joerg
commit
59c8500422
59
usr.sbin/mkdosfs/Makefile
Normal file
59
usr.sbin/mkdosfs/Makefile
Normal file
@ -0,0 +1,59 @@
|
||||
# $Id$
|
||||
#
|
||||
PROG= mkdosfs
|
||||
|
||||
CFLAGS+= -Wall
|
||||
|
||||
###################################################################
|
||||
#
|
||||
# Everything below is solely intented for maintenance.
|
||||
# As you can see, it requires as86/ld86 from the ``bcc'' package.
|
||||
#
|
||||
# For this reason, the bootcode.h target puts the result into
|
||||
# ${.CURDIR}
|
||||
|
||||
AS86= as86
|
||||
LD86= ld86
|
||||
AS86FLAGS= -0
|
||||
LD86FLAGS= -0 -s
|
||||
|
||||
CLEANFILES+= *.obj *.bin *.com
|
||||
.SUFFIXES: .asm .obj .bin .com
|
||||
|
||||
.asm.obj:
|
||||
${AS86} ${AS86FLAGS} -o ${.TARGET} ${.IMPSRC}
|
||||
|
||||
.obj.bin:
|
||||
${LD86} ${LD86FLAGS} -T 0x7c00 -o ${.PREFIX}.tmp ${.IMPSRC}
|
||||
dd bs=32 skip=1 of=${.TARGET} if=${.PREFIX}.tmp
|
||||
rm -f ${.PREFIX}.tmp
|
||||
|
||||
# .com file is just for testing
|
||||
.obj.com:
|
||||
${LD86} ${LD86FLAGS} -T 0x100 -o ${.PREFIX}.tmp ${.IMPSRC}
|
||||
dd bs=32 skip=1 of=${.TARGET} if=${.PREFIX}.tmp
|
||||
rm -f ${.PREFIX}.tmp
|
||||
|
||||
## Do NOT depend this on bootcode.bin unless you've installed the
|
||||
## bcc package!
|
||||
bootcode.h: ## bootcode.bin
|
||||
@echo converting bootcode.bin into bootcode.h...
|
||||
@perl -e 'if(read(STDIN,$$buf,512)<512) { \
|
||||
die "Read error on .bin file\n"; \
|
||||
} \
|
||||
@arr = unpack("C*",$$buf); \
|
||||
print "#ifndef BOOTCODE_H\n"; \
|
||||
print "#define BOOTCODE_H 1\n\n"; \
|
||||
print "/*\n * This file has been generated\n"; \
|
||||
print " * automatically. Do not edit.\n */\n\n"; \
|
||||
print "static unsigned char bootcode[512] = {\n"; \
|
||||
for($$i=0; $$i<512; $$i++) { \
|
||||
printf "0x%02x, ",$$arr[$$i]; \
|
||||
if($$i % 12 == 11) {print "\n";} \
|
||||
} \
|
||||
print "};\n\n"; \
|
||||
print "#endif /* BOOTCODE_H */\n";' \
|
||||
< bootcode.bin > ${.CURDIR}/bootcode.h
|
||||
|
||||
.include <bsd.prog.mk>
|
||||
|
||||
102
usr.sbin/mkdosfs/bootcode.asm
Normal file
102
usr.sbin/mkdosfs/bootcode.asm
Normal file
@ -0,0 +1,102 @@
|
||||
;;; Hello emacs, this looks like -*- asm -*- code, doesn't it?
|
||||
;;;
|
||||
;;; This forms a simple dummy boot program for use with a tool to
|
||||
;;; format DOS floppies. All it does is displaying a message, and
|
||||
;;; recover gracefully by re-initializing the CPU.
|
||||
;;;
|
||||
;;; Written by Joerg Wunsch, Dresden. Placed in the public domain.
|
||||
;;; This software is provided as is, neither kind of warranty applies.
|
||||
;;; Use at your own risk.
|
||||
;;;
|
||||
;;; (This is written in as86 syntax. as86 is part of Bruce Evans'
|
||||
;;; bcc package.)
|
||||
;;;
|
||||
;;; $Id$
|
||||
;;;
|
||||
;;; This code must be linked to address 0x7c00 in order to function
|
||||
;;; correctly (the BIOS boot address).
|
||||
;;;
|
||||
;;; It's 16-bit code, and we don't care for a data segment.
|
||||
use16
|
||||
.text
|
||||
|
||||
entry _begin
|
||||
_begin: jmp init ; jump to boot prog
|
||||
nop ; historical baggage ;-)
|
||||
;;;
|
||||
;;; Reserve space for the "BIOS parameter block".
|
||||
;;; This will be overwritten by the actual formatting routine.
|
||||
;;;
|
||||
bpb: .ascii "BSD 4.4" ; "OEM" name
|
||||
.word 512 ; sector size
|
||||
.byte 2 ; cluster size
|
||||
.word 1 ; reserved sectors (just the boot sector)
|
||||
.byte 2 ; FAT count
|
||||
.word 112 ; # of entries in root dir
|
||||
.word 1440 ; total number of sectors, MSDOS 3.3 or below
|
||||
.byte 0xf9 ; "media descriptor"
|
||||
.word 3 ; FAT size (sectors)
|
||||
.word 9 ; sectors per track
|
||||
.word 2 ; heads per cylinder
|
||||
.word 0 ; hidden sectors
|
||||
;; MSDOS 4.0++ -- only valid iff total number of sectors == 0
|
||||
.word 0 ; unused
|
||||
.long 0 ; total number of sectors
|
||||
.short 0 ; physical drive (0, 1, ..., 0x80) %-)
|
||||
.byte 0 ; "extented boot signature"
|
||||
.long 0 ; volume serial number (i.e., garbage :)
|
||||
.ascii " " ; label -- same as vol label in root dir
|
||||
.ascii "FAT12 " ; file system ID
|
||||
;;;
|
||||
;;; Executable code starts here.
|
||||
;;;
|
||||
init:
|
||||
;; First, display our message.
|
||||
mov si, *message
|
||||
lp1: seg cs
|
||||
movb al, [si]
|
||||
inc si
|
||||
testb al, al
|
||||
jz lp2 ; null-terminated string
|
||||
movb bl, *7 ; display with regular attribute
|
||||
movb ah, *0x0e ; int 0x10, fnc 0x0e -- emulate tty
|
||||
int 0x10
|
||||
jmp lp1
|
||||
lp2: xorb ah, ah ; int 0x16, fnc 0x00 -- wait for keystroke
|
||||
int 0x16
|
||||
mov ax, *0x40 ; write 0x1234 to address 0x472 --
|
||||
push ax ; tell the BIOS that this is a warm boot
|
||||
pop dx
|
||||
mov 0x72, *0x1234
|
||||
jmpf 0xfff0,0xf000 ; jump to CPU initialization code
|
||||
|
||||
message:
|
||||
.byte 7
|
||||
.byte 0xc9
|
||||
.byte 0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd
|
||||
.byte 0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd
|
||||
.byte 0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd
|
||||
.byte 0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd
|
||||
.byte 0xcd,0xcd,0xcd,0xcd,0xcd,0xcd
|
||||
.byte 0xbb, 13, 10, 0xba
|
||||
.ascii " Sorry, this disc does actually not contain "
|
||||
.byte 0xba, 13, 10, 0xba
|
||||
.ascii " a bootable system. "
|
||||
.byte 0xba, 13, 10, 0xba
|
||||
.ascii " Press any key to reboot. "
|
||||
.byte 0xba, 13, 10, 0xc8
|
||||
.byte 0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd
|
||||
.byte 0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd
|
||||
.byte 0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd
|
||||
.byte 0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd,0xcd
|
||||
.byte 0xcd,0xcd,0xcd,0xcd,0xcd,0xcd
|
||||
.byte 0xbc, 13,10
|
||||
.byte 0
|
||||
|
||||
;; Adjust the value below after changing the length of
|
||||
;; the code above!
|
||||
.space 0x1fe-0x161 ; pad to 512 bytes
|
||||
|
||||
.byte 0x55, 0xaa ; yes, we are bootable (cheating :)
|
||||
end
|
||||
|
||||
54
usr.sbin/mkdosfs/bootcode.h
Normal file
54
usr.sbin/mkdosfs/bootcode.h
Normal file
@ -0,0 +1,54 @@
|
||||
#ifndef BOOTCODE_H
|
||||
#define BOOTCODE_H 1
|
||||
|
||||
/*
|
||||
* This file has been generated
|
||||
* automatically. Do not edit.
|
||||
*/
|
||||
|
||||
static unsigned char bootcode[512] = {
|
||||
0xeb, 0x3c, 0x90, 0x42, 0x53, 0x44, 0x20, 0x20, 0x34, 0x2e, 0x34, 0x00,
|
||||
0x02, 0x02, 0x01, 0x00, 0x02, 0x70, 0x00, 0xa0, 0x05, 0xf9, 0x03, 0x00,
|
||||
0x09, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x20, 0x20, 0x20, 0x20,
|
||||
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x46, 0x41, 0x54, 0x31, 0x32, 0x20,
|
||||
0x20, 0x20, 0xbe, 0x65, 0x7c, 0x2e, 0x8a, 0x04, 0x46, 0x84, 0xc0, 0x74,
|
||||
0x08, 0xb3, 0x07, 0xb4, 0x0e, 0xcd, 0x10, 0xeb, 0xf0, 0x30, 0xe4, 0xcd,
|
||||
0x16, 0xb8, 0x40, 0x00, 0x50, 0x5a, 0xc7, 0x06, 0x72, 0x00, 0x34, 0x12,
|
||||
0xea, 0xf0, 0xff, 0x00, 0xf0, 0x07, 0xc9, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
|
||||
0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
|
||||
0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
|
||||
0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
|
||||
0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xbb, 0x0d, 0x0a, 0xba, 0x20, 0x20, 0x53,
|
||||
0x6f, 0x72, 0x72, 0x79, 0x2c, 0x20, 0x74, 0x68, 0x69, 0x73, 0x20, 0x64,
|
||||
0x69, 0x73, 0x63, 0x20, 0x64, 0x6f, 0x65, 0x73, 0x20, 0x61, 0x63, 0x74,
|
||||
0x75, 0x61, 0x6c, 0x6c, 0x79, 0x20, 0x6e, 0x6f, 0x74, 0x20, 0x63, 0x6f,
|
||||
0x6e, 0x74, 0x61, 0x69, 0x6e, 0x20, 0x20, 0xba, 0x0d, 0x0a, 0xba, 0x20,
|
||||
0x20, 0x61, 0x20, 0x62, 0x6f, 0x6f, 0x74, 0x61, 0x62, 0x6c, 0x65, 0x20,
|
||||
0x73, 0x79, 0x73, 0x74, 0x65, 0x6d, 0x2e, 0x20, 0x20, 0x20, 0x20, 0x20,
|
||||
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
|
||||
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0xba, 0x0d, 0x0a,
|
||||
0xba, 0x20, 0x20, 0x50, 0x72, 0x65, 0x73, 0x73, 0x20, 0x61, 0x6e, 0x79,
|
||||
0x20, 0x6b, 0x65, 0x79, 0x20, 0x74, 0x6f, 0x20, 0x72, 0x65, 0x62, 0x6f,
|
||||
0x6f, 0x74, 0x2e, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
|
||||
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0xba,
|
||||
0x0d, 0x0a, 0xc8, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
|
||||
0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
|
||||
0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
|
||||
0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
|
||||
0xcd, 0xbc, 0x0d, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xaa, };
|
||||
|
||||
#endif /* BOOTCODE_H */
|
||||
135
usr.sbin/mkdosfs/dosfs.h
Normal file
135
usr.sbin/mkdosfs/dosfs.h
Normal file
@ -0,0 +1,135 @@
|
||||
/*
|
||||
* Copyright (c) 1995 Joerg Wunsch
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* This program is free software.
|
||||
*
|
||||
* 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 DEVELOPERS ``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 DEVELOPERS 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.
|
||||
*/
|
||||
|
||||
/*
|
||||
* MS-DOS (FAT) file system structure definitions.
|
||||
*
|
||||
* $Id$
|
||||
*/
|
||||
|
||||
#ifndef DOSFS_H
|
||||
#define DOSFS_H 1
|
||||
|
||||
typedef u_char Long[4];
|
||||
typedef u_char Short[2];
|
||||
|
||||
union bootsector
|
||||
{
|
||||
unsigned char raw[512];
|
||||
struct bsec
|
||||
{
|
||||
u_char jump_boot[3]; /* jump code to boot-up partition */
|
||||
char oem_name[8]; /* OEM company name & version */
|
||||
Short sectsiz; /* bytes per sector */
|
||||
u_char clustsiz; /* sectors per cluster */
|
||||
Short ressecs; /* reserved sectors [before 1st FAT] */
|
||||
u_char fatcnt; /* # of FAT's */
|
||||
Short rootsiz; /* number of root dir entries */
|
||||
Short totsecs; /* total # of sectors */
|
||||
u_char media; /* media descriptor */
|
||||
Short fatsize; /* # of sectors per FAT */
|
||||
Short trksecs; /* sectors per track (cylinder) */
|
||||
Short headcnt; /* # of r/w heads */
|
||||
Short hidnsec; /* hidden sectors */
|
||||
union
|
||||
{
|
||||
/* case totsecs != 0: */
|
||||
/* This is a partition of MS-DOS 3.3 format (< 32 MB) */
|
||||
u_char bootprogram[480];
|
||||
|
||||
/* case totsecs == 0: */
|
||||
/* partition of MS-DOS 4.0+ format, or > 32 MB */
|
||||
struct
|
||||
{
|
||||
Short unused;
|
||||
Long totsecs; /* total # of sectors, as a 32-bit */
|
||||
Short physdrv; /* physical drive # [0x80...] */
|
||||
u_char extboot; /* extended boot signature??? */
|
||||
Long serial; /* volume serial number */
|
||||
char label[11]; /* same as volume label in root dir */
|
||||
char fsysid[8]; /* some like `FAT16' */
|
||||
u_char bootprogram[448];
|
||||
} extended;
|
||||
} variable_part;
|
||||
u_char signature[2]; /* always {0x55, 0xaa} */
|
||||
} bsec;
|
||||
};
|
||||
|
||||
struct fat
|
||||
{
|
||||
u_char media; /* the media descriptor again */
|
||||
u_char padded; /* alway 0xff */
|
||||
u_char contents[1]; /* the `1' is a placeholder only */
|
||||
};
|
||||
|
||||
/* DOS file attributes */
|
||||
#define FA_RONLY 1 /* read/only */
|
||||
#define FA_HIDDEN 2 /* hidden */
|
||||
#define FA_SYSTEM 4 /* system */
|
||||
#define FA_VOLLABEL 8 /* this is the volume label */
|
||||
#define FA_SUBDIR 0x10 /* sub-directory */
|
||||
#define FA_ARCH 0x20 /* archive - file hasn't been backed up */
|
||||
|
||||
struct dosftime
|
||||
{
|
||||
u_char time[2]; /* [0] & 0x1f - seconds div 2
|
||||
* ([1] & 7) * 8 + ([0] >> 5) - minutes
|
||||
* [1] >> 3 - hours
|
||||
*/
|
||||
u_char date[2]; /* [0] & 0x1f - day
|
||||
* ([1] & 1) * 8 + ([0] >> 5) - month
|
||||
* [1] >> 1 - year - 1980
|
||||
*/
|
||||
};
|
||||
|
||||
#define dosft_hour(dft) ((dft).time[1] >> 3)
|
||||
#define dosft_minute(dft) (((dft).time[1] & 7) * 8 + ((dft).time[0] >> 5))
|
||||
#define dosft_second(dft) (((dft).time[0] & 0x1f) * 2)
|
||||
#define dosft_year(dft) (((dft).date[1] >> 1) + 1980)
|
||||
#define dosft_month(dft) (((dft).date[1] & 1) * 8 + ((dft).date[0] >> 5))
|
||||
#define dosft_day(dft) ((dft).date[0] & 0x1f)
|
||||
|
||||
|
||||
struct direntry
|
||||
{
|
||||
char name[8]; /* file name portion */
|
||||
char ext[3]; /* file extension */
|
||||
u_char attr; /* file attribute as above */
|
||||
char reserved[10];
|
||||
struct dosftime fdate; /* time created/last modified */
|
||||
Short startclstr; /* starting cluster number */
|
||||
Long filesiz; /* file size in bytes */
|
||||
};
|
||||
|
||||
/* handle endiannes: */
|
||||
#define s_to_little_s(dst, src) dst[0]=(src)&0xff; dst[1]=((src)&0xff00)>>8
|
||||
#define l_to_little_l(dst, src) \
|
||||
dst[0]=(src)&0xff; dst[1]=((src)&0xff00)>>8; \
|
||||
dst[2]=((src)&0xff0000)>>16; dst[3]=((src)&0xff000000)>>24
|
||||
|
||||
#endif /* DOSFS_H */
|
||||
128
usr.sbin/mkdosfs/mkdosfs.1
Normal file
128
usr.sbin/mkdosfs/mkdosfs.1
Normal file
@ -0,0 +1,128 @@
|
||||
.\"
|
||||
.\" Copyright (c) 1995 Joerg Wunsch
|
||||
.\"
|
||||
.\" All rights reserved.
|
||||
.\"
|
||||
.\" This program is free software.
|
||||
.\"
|
||||
.\" 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 DEVELOPERS ``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 DEVELOPERS 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.
|
||||
.\"
|
||||
.\" $Id$
|
||||
.\"
|
||||
.Dd November 5, 1995
|
||||
.Os
|
||||
.Dt MKDOSFS 1
|
||||
.Sh NAME
|
||||
.Nm mkdosfs
|
||||
.Nd create an MS-DOS (FAT) file system
|
||||
.Sh SYNOPSIS
|
||||
.Nm mkdosfs
|
||||
.Bq Fl f Ar capacity
|
||||
.Bq Fl L Ar vollabel
|
||||
.Ar device
|
||||
.Sh DESCRIPTION
|
||||
.Nm Mkdosfs
|
||||
establishes a file system structure on
|
||||
.Ar device
|
||||
that is understood by
|
||||
.Xr mount_msdos
|
||||
and some ancient program loader.
|
||||
.Ar Device
|
||||
will typically be the character device node for a floppy disk drive,
|
||||
.Pq e.\ g. Pa /dev/rfd0 ,
|
||||
although any existing writable file or device is acceptable. In case
|
||||
of a regular file it is treated as a dumped image of an MS-DOS file
|
||||
system; only the file system structure will be written to it, and it
|
||||
won't be truncated.
|
||||
.Pp
|
||||
The options are as follows:
|
||||
.Bl -tag -width 10n -offset indent
|
||||
.It Fl f Ar capacity
|
||||
Use defaults for a typical file system with
|
||||
.Ar capacity
|
||||
kilobytes. Currently, the values 360, 720, 1200, and 1440 are
|
||||
recognized.
|
||||
.It Fl L Ar vollabel
|
||||
Use
|
||||
.Ar vollabel
|
||||
to describe the file system, instead of the default
|
||||
.Ql 4.4BSD .
|
||||
.El
|
||||
.Pp
|
||||
The file system structure consists of three major areas:
|
||||
.Bl -tag -width 10n -offset indent
|
||||
.It Em The bootsector
|
||||
This is the very first (512-byte) sector. It contains executable
|
||||
code that normally would bootstrap an operating system when loaded.
|
||||
Since it's beyond the scope of
|
||||
.Nm
|
||||
to install an operating system on the medium, this boot code will only
|
||||
print a message that the disk does not contain a bootable system.
|
||||
Inside the
|
||||
.Em bootsector
|
||||
is the
|
||||
.Em BIOS parameter block (BPB) ,
|
||||
where several statistical parameters of the file system are being
|
||||
held.
|
||||
.It Em The file allocation table(s) (FAT)
|
||||
Sectors next to the
|
||||
.Em bootsector
|
||||
hold the FAT, which is used to register file system allocation,
|
||||
as well as keeping pointer chains for the chunks constituting
|
||||
one file. There are usually two identical copies of the FAT.
|
||||
.It Em The root directory
|
||||
The final structure is the root directory for this medium. It is
|
||||
merely a space reservation, padded with 0's, and unfortunately fixed
|
||||
in its size.
|
||||
.Nm mkdosfs
|
||||
initializes it to empty, and enters a volume label record into the
|
||||
very first directory slot.
|
||||
.Sh DIAGNOSTICS
|
||||
An exit status of 0 is returned upon successful operation. Exit status
|
||||
1 is returned on any errors during file system creation, and an exit status
|
||||
of 2 reflects invalid arguments given to the program (along with an
|
||||
appropriate information written to diagnostic output).
|
||||
.Sh SEE ALSO
|
||||
.Xr fdformat 1 ,
|
||||
.Xr mount_msdos 8 ,
|
||||
.Xr newfs 8 .
|
||||
.Sh BUGS
|
||||
There is currently no way to specify obscure file system parameters.
|
||||
Thus, only media with one of the supported capacity values can be
|
||||
formatted. For the same reason, it's not possible to handle hard disk
|
||||
partitions. More options should be added to allow this. More entries
|
||||
should be added to the table of known formats, too.
|
||||
.Pp
|
||||
No attempt is made to handle media defects. However, this is beyond
|
||||
the scope of
|
||||
.Nm mkdosfs
|
||||
and should better be handled by the (nonexistent)
|
||||
.Xr dosfsck 1
|
||||
utility.
|
||||
.Sh HISTORY
|
||||
.Nm Mkdosfs
|
||||
appeared in
|
||||
.Em FreeBSD 2.2 .
|
||||
.Sh AUTHOR
|
||||
The program has been contributed by
|
||||
.if n Joerg Wunsch,
|
||||
.if t J\(:org Wunsch,
|
||||
Dresden.
|
||||
239
usr.sbin/mkdosfs/mkdosfs.c
Normal file
239
usr.sbin/mkdosfs/mkdosfs.c
Normal file
@ -0,0 +1,239 @@
|
||||
/*
|
||||
* Copyright (c) 1995 Joerg Wunsch
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* This program is free software.
|
||||
*
|
||||
* 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 DEVELOPERS ``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 DEVELOPERS 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.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Create an MS-DOS (FAT) file system.
|
||||
*
|
||||
* $Id$
|
||||
*/
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <time.h>
|
||||
#include <unistd.h>
|
||||
#include <memory.h>
|
||||
#include <err.h>
|
||||
#include <fcntl.h>
|
||||
|
||||
#include "bootcode.h"
|
||||
#include "dosfs.h"
|
||||
|
||||
struct descrip
|
||||
{
|
||||
/* our database key */
|
||||
unsigned kilobytes;
|
||||
/* MSDOS 3.3 BPB fields */
|
||||
u_short sectsiz;
|
||||
u_char clustsiz;
|
||||
u_short ressecs;
|
||||
u_char fatcnt;
|
||||
u_short rootsiz;
|
||||
u_short totsecs;
|
||||
u_char media;
|
||||
u_short fatsize;
|
||||
u_short trksecs;
|
||||
u_short headcnt;
|
||||
u_short hidnsec;
|
||||
/* MSDOS 4 BPB extensions */
|
||||
u_long ext_totsecs;
|
||||
u_short ext_physdrv;
|
||||
u_char ext_extboot;
|
||||
char ext_label[11];
|
||||
char ext_fsysid[8];
|
||||
};
|
||||
|
||||
static struct descrip
|
||||
table[] =
|
||||
{
|
||||
/*
|
||||
* kilobytes
|
||||
* sec cls res fat rot tot med fsz spt hds hid
|
||||
* tot phs ebt label fsysid
|
||||
*/
|
||||
{ 720,
|
||||
512, 2, 1, 2, 112, 1440, 0xf9, 3, 9, 2, 0,
|
||||
0, 0, 0, "4.4BSD ", "FAT12 "},
|
||||
{1440,
|
||||
512, 1, 1, 2, 224, 2880, 0xf0, 9, 18, 2, 0,
|
||||
0, 0, 0, "4.4BSD ", "FAT12 "},
|
||||
{ 360,
|
||||
512, 2, 1, 2, 112, 720, 0xfd, 2, 9, 2, 0,
|
||||
0, 0, 0, "4.4BSD ", "FAT12 "},
|
||||
{1200,
|
||||
512, 1, 1, 2, 224, 2400, 0xf9, 7, 15, 2, 0,
|
||||
0, 0, 0, "4.4BSD ", "FAT12 "},
|
||||
};
|
||||
|
||||
void
|
||||
usage(void)
|
||||
{
|
||||
fprintf(stderr, "usage: ");
|
||||
errx(2, "[-f kbytes] [-L label] device");
|
||||
}
|
||||
|
||||
void
|
||||
setup_boot_sector_from_template(union bootsector *bs, struct descrip *dp)
|
||||
{
|
||||
memcpy((void *)bs->raw, (void *)bootcode, 512);
|
||||
|
||||
/* historical part of BPB */
|
||||
s_to_little_s(bs->bsec.sectsiz, dp->sectsiz);
|
||||
bs->bsec.clustsiz = dp->clustsiz;
|
||||
s_to_little_s(bs->bsec.ressecs, dp->ressecs);
|
||||
bs->bsec.fatcnt = dp->fatcnt;
|
||||
s_to_little_s(bs->bsec.rootsiz, dp->rootsiz);
|
||||
s_to_little_s(bs->bsec.totsecs, dp->totsecs);
|
||||
bs->bsec.media = dp->media;
|
||||
s_to_little_s(bs->bsec.fatsize, dp->fatsize);
|
||||
s_to_little_s(bs->bsec.trksecs, dp->trksecs);
|
||||
s_to_little_s(bs->bsec.headcnt, dp->headcnt);
|
||||
s_to_little_s(bs->bsec.hidnsec, dp->hidnsec);
|
||||
|
||||
/* MSDOS 4 extensions */
|
||||
l_to_little_l(bs->bsec.variable_part.extended.totsecs, dp->ext_totsecs);
|
||||
s_to_little_s(bs->bsec.variable_part.extended.physdrv, dp->ext_physdrv);
|
||||
bs->bsec.variable_part.extended.extboot = dp->ext_extboot;
|
||||
|
||||
/* assign a "serial number" :) */
|
||||
srandom((unsigned)time((time_t)0));
|
||||
l_to_little_l(bs->bsec.variable_part.extended.serial, random());
|
||||
|
||||
memcpy((void *)bs->bsec.variable_part.extended.label,
|
||||
(void *)dp->ext_label, 11);
|
||||
memcpy((void *)bs->bsec.variable_part.extended.fsysid,
|
||||
(void *)dp->ext_fsysid, 8);
|
||||
}
|
||||
|
||||
#define roundup(dst, limit) dst = (((dst) | ((limit) - 1)) & ~(limit)) + 1
|
||||
|
||||
int
|
||||
main(int argc, char **argv)
|
||||
{
|
||||
union bootsector bs;
|
||||
struct descrip *dp;
|
||||
struct fat *fat;
|
||||
struct direntry *rootdir;
|
||||
struct tm *tp;
|
||||
time_t now;
|
||||
|
||||
int c, i, fd, format = 0, rootdirsize;
|
||||
const char *label = 0;
|
||||
|
||||
while((c = getopt(argc, argv, "f:L:")) != EOF)
|
||||
switch(c)
|
||||
{
|
||||
case 'f':
|
||||
format = atoi(optarg);
|
||||
break;
|
||||
|
||||
case 'L':
|
||||
label = optarg;
|
||||
break;
|
||||
|
||||
case '?':
|
||||
default:
|
||||
usage();
|
||||
}
|
||||
argc -= optind;
|
||||
argv += optind;
|
||||
|
||||
if(argc != 1)
|
||||
usage();
|
||||
|
||||
for(i = 0, dp = table; i < sizeof table / sizeof(struct descrip); i++, dp++)
|
||||
if(dp->kilobytes == format)
|
||||
break;
|
||||
if(i == sizeof table / sizeof(struct descrip))
|
||||
errx(1, "cannot find format description for %d KB", format);
|
||||
|
||||
if((fd = open(argv[0], O_RDWR|O_EXCL, 0)) == -1)
|
||||
err(1, "open(%s)", argv[0]);
|
||||
|
||||
/* prepare and write the boot sector */
|
||||
setup_boot_sector_from_template(&bs, dp);
|
||||
|
||||
/* if we've got an explicit label, use it */
|
||||
if(label)
|
||||
strncpy(bs.bsec.variable_part.extended.label, label, 11);
|
||||
|
||||
if(write(fd, (char *)bs.raw, sizeof bs) != sizeof bs)
|
||||
err(1, "boot sector write()");
|
||||
|
||||
/* now, go on with the FATs */
|
||||
if((fat = (struct fat *)malloc(dp->sectsiz * dp->fatsize)) == 0)
|
||||
abort();
|
||||
memset((void *)fat, 0, dp->sectsiz * dp->fatsize);
|
||||
|
||||
fat->media = dp->media;
|
||||
fat->padded = 0xff;
|
||||
fat->contents[0] = 0xff;
|
||||
if(dp->totsecs > 20740 || (dp->totsecs == 0 && dp->ext_totsecs > 20740))
|
||||
/* 16-bit FAT */
|
||||
fat->contents[1] = 0xff;
|
||||
|
||||
for(i = 0; i < dp->fatcnt; i++)
|
||||
if(write(fd, (char *)fat, dp->sectsiz * dp->fatsize)
|
||||
!= dp->sectsiz * dp->fatsize)
|
||||
err(1, "FAT write()");
|
||||
|
||||
free((void *)fat);
|
||||
|
||||
/* finally, build the root dir */
|
||||
rootdirsize = dp->rootsiz * sizeof(struct direntry);
|
||||
roundup(rootdirsize, dp->clustsiz * dp->sectsiz);
|
||||
|
||||
if((rootdir = (struct direntry *)malloc(rootdirsize)) == 0)
|
||||
abort();
|
||||
memset((void *)fat, 0, rootdirsize);
|
||||
|
||||
/* set up a volume label inside the root dir :) */
|
||||
if(label)
|
||||
strncpy(rootdir[0].name, label, 11);
|
||||
else
|
||||
memcpy(rootdir[0].name, dp->ext_label, 11);
|
||||
rootdir[0].attr = FA_VOLLABEL;
|
||||
now = time((time_t)0);
|
||||
tp = localtime(&now);
|
||||
rootdir[0].fdate.time[0] = tp->tm_sec / 2;
|
||||
rootdir[0].fdate.time[0] |= (tp->tm_min & 7) << 5;
|
||||
rootdir[0].fdate.time[1] = ((tp->tm_min >> 3) & 7);
|
||||
rootdir[0].fdate.time[1] |= tp->tm_hour << 3;
|
||||
rootdir[0].fdate.date[0] = tp->tm_mday;
|
||||
rootdir[0].fdate.date[0] |= ((tp->tm_mon + 1) & 7) << 5;
|
||||
rootdir[0].fdate.date[1] = ((tp->tm_mon + 1) >> 3) & 1;
|
||||
rootdir[0].fdate.date[1] |= (tp->tm_year - 80) << 1;
|
||||
|
||||
if(write(fd, (char *)rootdir, rootdirsize) != rootdirsize)
|
||||
err(1, "root dir write()");
|
||||
|
||||
(void)close(fd);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user