#include "../version.h"
#include <linux/hdreg.h>
#include <linux/fs.h>
#include <linux/fd.h>
#include <endian.h>
#include <mntent.h>
#include <signal.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <time.h>
#include <asm/byteorder.h>
#include <linux/unistd.h>

Include dependency graph for mkdosfs.c:

Classes
struct	msdos_volume_info

struct	msdos_boot_sector

struct	fat32_fsinfo

struct	msdos_dir_entry

Macros
#define	CF_LE_W(v) ((((v) & 0xff) << 8) \| (((v) >> 8) & 0xff))

#define	CF_LE_L(v)

#define	CT_LE_W(v) CF_LE_W(v)

#define	CT_LE_L(v) CF_LE_L(v)

#define	O_NOINHERIT 0

#define	O_TEMPORARY 0

#define	O_SHORT_LIVED 0

#define	O_SEQUENTIAL 0

#define	O_RANDOM 0

#define	O_BACKUP 0

#define	O_SHARED 0

#define	O_NONE 0

#define	TRUE 1 /* Boolean constants */

#define	FALSE 0

#define	TEST_BUFFER_BLOCKS 16

#define	HARD_SECTOR_SIZE 512

#define	SECTORS_PER_BLOCK ( BLOCK_SIZE / HARD_SECTOR_SIZE )

#define	die(str) fatal_error( "%s: " str "\n" )

#define	mark_sector_bad(sector) mark_FAT_sector( sector, FAT_BAD )

#define	ATTR_RO 1 /* read-only */

#define	ATTR_HIDDEN 2 /* hidden */

#define	ATTR_SYS 4 /* system */

#define	ATTR_VOLUME 8 /* volume label */

#define	ATTR_DIR 16 /* directory */

#define	ATTR_ARCH 32 /* archived */

#define	ATTR_NONE 0 /* no attribute bits */

#define	ATTR_UNUSED (ATTR_VOLUME \| ATTR_ARCH \| ATTR_SYS \| ATTR_HIDDEN)

#define	FAT_EOF (atari_format ? 0x0fffffff : 0x0ffffff8)

#define	FAT_BAD 0x0ffffff7

#define	MSDOS_EXT_SIGN 0x29 /* extended boot sector signature */

#define	MSDOS_FAT12_SIGN "FAT12 " /* FAT12 filesystem signature */

#define	MSDOS_FAT16_SIGN "FAT16 " /* FAT16 filesystem signature */

#define	MSDOS_FAT32_SIGN "FAT32 " /* FAT32 filesystem signature */

#define	BOOT_SIGN 0xAA55 /* Boot sector magic number */

#define	MAX_CLUST_12 ((1 << 12) - 16)

#define	MAX_CLUST_16 ((1 << 16) - 16)

#define	MAX_CLUST_32 ((1 << 28) - 16)

#define	FAT12_THRESHOLD 4078

#define	OLDGEMDOS_MAX_SECTORS 32765

#define	GEMDOS_MAX_SECTORS 65531

#define	GEMDOS_MAX_SECTOR_SIZE (16*1024)

#define	BOOTCODE_SIZE 448

#define	BOOTCODE_FAT32_SIZE 420

#define	fat32 fstype._fat32

#define	oldfat fstype._oldfat

#define	MESSAGE_OFFSET 29 /* Offset of message in above code */

#define	error(str)

#define	seekto(pos, errstr)

#define	writebuf(buf, size, errstr)

Typedefs
typedef long long	ll_t

Functions
static	_syscall5 (int, _llseek, uint, fd, ulong, hi, ulong, lo, loff_t *, res, uint, wh)

static loff_t	llseek (int fd, loff_t offset, int whence)

int	cdiv (int a, int b)

struct msdos_volume_info	__attribute__ ((packed))

static void	fatal_error (const char *fmt_string) __attribute__((noreturn))

static void	mark_FAT_cluster (int cluster, unsigned int value)

static void	mark_FAT_sector (int sector, unsigned int value)

static long	do_check (char *buffer, int try, unsigned int current_block)

static void	alarm_intr (int alnum)

static void	check_blocks (void)

static void	get_list_blocks (char *filename)

static int	valid_offset (int fd, loff_t offset)

static int	count_blocks (char *filename)

static void	check_mount (char *device_name)

static void	establish_params (int device_num, int size)

static void	setup_tables (void)

static void	write_tables (void)

void	usage (void)

static void	check_atari (void)

int	main (int argc, char **argv)

Variables
__u8	drive_number

__u8	RESERVED

__u8	ext_boot_sign

__u8	volume_id [4]

__u8	volume_label [11]

__u8	fs_type [8]

struct msdos_volume_info	vi

__u8	boot_code [BOOTCODE_SIZE]

__u8	boot_jump [3]

__u8	system_id [8]

__u8	sector_size [2] = 512

__u8	cluster_size

__u16	reserved

__u8	fats

__u8	dir_entries [2]

__u8	sectors [2]

__u8	media

__u16	fat_length

__u16	secs_track

__u16	heads

__u32	hidden

__u32	total_sect

struct fat32_fsinfo	__attribute__

char	name [8]

char	ext [3]

__u8	attr

__u8	lcase

__u8	ctime_ms

__u16	ctime

__u16	cdate

__u16	adate

__u16	starthi

__u16	time

__u16	date

__u16	start

__u32	size

char	dummy_boot_jump [3] = { 0xeb, 0x3c, 0x90 }

char	dummy_boot_jump_m68k [2] = { 0x60, 0x1c }

char	dummy_boot_code [BOOTCODE_SIZE]

static char *	program_name = "mkdosfs"

static char *	device_name = NULL

static int	atari_format = 0

static int	check = FALSE

static int	verbose = 0

static time_t	create_time

static char	volume_name [] = " "

static int	blocks

static int	sector_size_set = 0

static int	backup_boot = 0

static int	reserved_sectors = 0

static int	badblocks = 0

static int	nr_fats = 2

static int	size_fat = 0

static int	size_fat_by_user = 0

static int	dev = -1

static int	ignore_full_disk = 0

static unsigned int	currently_testing = 0

static struct msdos_boot_sector	bs

static int	start_data_sector

static int	start_data_block

static unsigned char *	fat

static unsigned char *	info_sector

static struct msdos_dir_entry *	root_dir

static int	size_root_dir

static int	sectors_per_cluster = 0

static int	root_dir_entries = 0

static char *	blank_sector

Macro Definition Documentation

◆ ATTR_ARCH

#define ATTR_ARCH 32 /* archived */

Definition at line 371 of file mkdosfs.c.

◆ ATTR_DIR

#define ATTR_DIR 16 /* directory */

Definition at line 370 of file mkdosfs.c.

◆ ATTR_HIDDEN

#define ATTR_HIDDEN 2 /* hidden */

Definition at line 367 of file mkdosfs.c.

◆ ATTR_NONE

#define ATTR_NONE 0 /* no attribute bits */

Definition at line 373 of file mkdosfs.c.

◆ ATTR_RO

#define ATTR_RO 1 /* read-only */

Definition at line 366 of file mkdosfs.c.

◆ ATTR_SYS

#define ATTR_SYS 4 /* system */

Definition at line 368 of file mkdosfs.c.

◆ ATTR_UNUSED

#define ATTR_UNUSED (ATTR_VOLUME | ATTR_ARCH | ATTR_SYS | ATTR_HIDDEN)

Definition at line 374 of file mkdosfs.c.

◆ ATTR_VOLUME

#define ATTR_VOLUME 8 /* volume label */

Definition at line 369 of file mkdosfs.c.

◆ BOOT_SIGN

#define BOOT_SIGN 0xAA55 /* Boot sector magic number */

Definition at line 386 of file mkdosfs.c.

◆ BOOTCODE_FAT32_SIZE

#define BOOTCODE_FAT32_SIZE 420

Definition at line 401 of file mkdosfs.c.

◆ BOOTCODE_SIZE

#define BOOTCODE_SIZE 448

Definition at line 400 of file mkdosfs.c.

◆ CF_LE_L

#define CF_LE_L ( v )

Value:

(((unsigned)(v)>>24) | (((unsigned)(v)>>8)&0xff00) | \

(((unsigned)(v)<<8)&0xff0000) | ((unsigned)(v)<<24))

v

const GLdouble * v

Definition: gl.h:2040

unsigned

static unsigned(__cdecl *hash_bstr)(bstr_t s)

Definition at line 95 of file mkdosfs.c.

◆ CF_LE_W

#define CF_LE_W ( v ) ((((v) & 0xff) << 8) | (((v) >> 8) & 0xff))

Definition at line 94 of file mkdosfs.c.

◆ CT_LE_L

#define CT_LE_L ( v ) CF_LE_L(v)

Definition at line 98 of file mkdosfs.c.

◆ CT_LE_W

#define CT_LE_W ( v ) CF_LE_W(v)

Definition at line 97 of file mkdosfs.c.

◆ die

#define die ( str ) fatal_error( "%s: " str "\n" )

Definition at line 347 of file mkdosfs.c.

◆ error

#define error ( str )

Value:

  do {                      \
    free (fat);                 \
    if (info_sector) free (info_sector);    \
    free (root_dir);                \
    die (str);                  \
  } while(0)

Definition at line 1605 of file mkdosfs.c.

◆ FALSE

#define FALSE 0

Definition at line 336 of file mkdosfs.c.

◆ FAT12_THRESHOLD

#define FAT12_THRESHOLD 4078

Definition at line 394 of file mkdosfs.c.

◆ fat32

#define fat32 fstype._fat32

Definition at line 454 of file mkdosfs.c.

◆ FAT_BAD

#define FAT_BAD 0x0ffffff7

Definition at line 379 of file mkdosfs.c.

◆ FAT_EOF

#define FAT_EOF (atari_format ? 0x0fffffff : 0x0ffffff8)

Definition at line 378 of file mkdosfs.c.

◆ GEMDOS_MAX_SECTOR_SIZE

#define GEMDOS_MAX_SECTOR_SIZE (16*1024)

Definition at line 398 of file mkdosfs.c.

◆ GEMDOS_MAX_SECTORS

#define GEMDOS_MAX_SECTORS 65531

Definition at line 397 of file mkdosfs.c.

◆ HARD_SECTOR_SIZE

#define HARD_SECTOR_SIZE 512

Definition at line 339 of file mkdosfs.c.

◆ mark_sector_bad

#define mark_sector_bad ( sector ) mark_FAT_sector( sector, FAT_BAD )

Definition at line 352 of file mkdosfs.c.

◆ MAX_CLUST_12

#define MAX_CLUST_12 ((1 << 12) - 16)

Definition at line 388 of file mkdosfs.c.

◆ MAX_CLUST_16

#define MAX_CLUST_16 ((1 << 16) - 16)

Definition at line 389 of file mkdosfs.c.

◆ MAX_CLUST_32

#define MAX_CLUST_32 ((1 << 28) - 16)

Definition at line 392 of file mkdosfs.c.

◆ MESSAGE_OFFSET

#define MESSAGE_OFFSET 29 /* Offset of message in above code */

Definition at line 515 of file mkdosfs.c.

◆ MSDOS_EXT_SIGN

#define MSDOS_EXT_SIGN 0x29 /* extended boot sector signature */

Definition at line 381 of file mkdosfs.c.

◆ MSDOS_FAT12_SIGN

#define MSDOS_FAT12_SIGN "FAT12 " /* FAT12 filesystem signature */

Definition at line 382 of file mkdosfs.c.

◆ MSDOS_FAT16_SIGN

#define MSDOS_FAT16_SIGN "FAT16 " /* FAT16 filesystem signature */

Definition at line 383 of file mkdosfs.c.

◆ MSDOS_FAT32_SIGN

#define MSDOS_FAT32_SIGN "FAT32 " /* FAT32 filesystem signature */

Definition at line 384 of file mkdosfs.c.

◆ O_BACKUP

#define O_BACKUP 0

Definition at line 299 of file mkdosfs.c.

◆ O_NOINHERIT

#define O_NOINHERIT 0

Definition at line 294 of file mkdosfs.c.

◆ O_NONE

#define O_NONE 0

Definition at line 302 of file mkdosfs.c.

◆ O_RANDOM

#define O_RANDOM 0

Definition at line 298 of file mkdosfs.c.

◆ O_SEQUENTIAL

#define O_SEQUENTIAL 0

Definition at line 297 of file mkdosfs.c.

◆ O_SHARED

#define O_SHARED 0

Definition at line 300 of file mkdosfs.c.

◆ O_SHORT_LIVED

#define O_SHORT_LIVED 0

Definition at line 296 of file mkdosfs.c.

◆ O_TEMPORARY

#define O_TEMPORARY 0

Definition at line 295 of file mkdosfs.c.

◆ oldfat

#define oldfat fstype._oldfat

Definition at line 455 of file mkdosfs.c.

◆ OLDGEMDOS_MAX_SECTORS

#define OLDGEMDOS_MAX_SECTORS 32765

Definition at line 396 of file mkdosfs.c.

◆ SECTORS_PER_BLOCK

#define SECTORS_PER_BLOCK ( BLOCK_SIZE / HARD_SECTOR_SIZE )

Definition at line 340 of file mkdosfs.c.

◆ seekto

#define seekto	(	pos,
		errstr
	)

Value:

  do {                                  \
    loff_t __pos = (pos);                       \
    if (llseek (dev, __pos, SEEK_SET) != __pos)             \
    error ("seek to " errstr " failed whilst writing tables");  \
  } while(0)

Definition at line 1613 of file mkdosfs.c.

◆ TEST_BUFFER_BLOCKS

#define TEST_BUFFER_BLOCKS 16

Definition at line 338 of file mkdosfs.c.

◆ TRUE

#define TRUE 1 /* Boolean constants */

Definition at line 335 of file mkdosfs.c.

◆ writebuf

#define writebuf	(	buf,
		size,
		errstr
	)

Value:

  do {                          \
    int __size = (size);                \
    if (write (dev, buf, __size) != __size)     \
    error ("failed whilst writing " errstr);    \
  } while(0)

Definition at line 1620 of file mkdosfs.c.

Typedef Documentation

◆ ll_t

typedef long long ll_t

Definition at line 305 of file mkdosfs.c.

Function Documentation

◆ attribute()

struct msdos_volume_info __attribute__ ( (packed) )

Definition at line 43 of file framebased-gcchack.c.

{
    return trampoline_->STR_MovEcx == 0xb9 && trampoline_->STR_Jmp == 0xe9;
}

◆ _syscall5()

static _syscall5	(	int	,
		_llseek	,
		uint	,
		fd	,
		ulong	,
		hi	,
		ulong	,
		lo	,
		loff_t *	,
		res	,
		uint	,
		wh
	)

static

◆ alarm_intr()

static void alarm_intr ( int alnum )

static

Definition at line 668 of file mkdosfs.c.

{
  if (currently_testing >= blocks)
    return;
 
  signal (SIGALRM, alarm_intr);
  alarm (5);
  if (!currently_testing)
    return;
 
  printf ("%d... ", currently_testing);
  fflush (stdout);
}

Referenced by alarm_intr(), and check_blocks().

◆ cdiv()

int cdiv	(	int	a,
		int	b
	)

inline

Definition at line 357 of file mkdosfs.c.

{
  return (a + b - 1) / b;
}

Referenced by setup_tables().

◆ check_atari()

static void check_atari ( void )

static

Definition at line 1700 of file mkdosfs.c.

{
#ifdef __mc68000__
    FILE *f;
    char line[128], *p;
 
    if (!(f = fopen( "/proc/hardware", "r" ))) {
    perror( "/proc/hardware" );
    return;
    }
 
    while( fgets( line, sizeof(line), f ) ) {
    if (strncmp( line, "Model:", 6 ) == 0) {
        p = line + 6;
        p += strspn( p, " \t" );
        if (strncmp( p, "Atari ", 6 ) == 0)
        atari_format = 1;
        break;
    }
    }
    fclose( f );
#endif
}

Referenced by main().

◆ check_blocks()

static void check_blocks ( void )

static

Definition at line 684 of file mkdosfs.c.

{
  int try, got;
  int i;
  static char blkbuf[BLOCK_SIZE * TEST_BUFFER_BLOCKS];
 
  if (verbose)
    {
      printf ("Searching for bad blocks ");
      fflush (stdout);
    }
  currently_testing = 0;
#ifndef _WIN32
  if (verbose)
    {
      signal (SIGALRM, alarm_intr);
      alarm (5);
    }
#endif
  try = TEST_BUFFER_BLOCKS;
  while (currently_testing < blocks)
    {
      if (currently_testing + try > blocks)
    try = blocks - currently_testing;
      got = do_check (blkbuf, try, currently_testing);
      currently_testing += got;
      if (got == try)
    {
      try = TEST_BUFFER_BLOCKS;
      continue;
    }
      else
    try = 1;
      if (currently_testing < start_data_block)
    die ("bad blocks before data-area: cannot make fs");
 
      for (i = 0; i < SECTORS_PER_BLOCK; i++)   /* Mark all of the sectors in the block as bad */
    mark_sector_bad (currently_testing * SECTORS_PER_BLOCK + i);
      badblocks++;
      currently_testing++;
    }
 
  if (verbose)
    printf ("\n");
 
  if (badblocks)
    printf ("%d bad block%s\n", badblocks,
        (badblocks > 1) ? "s" : "");
}

Referenced by main().

◆ check_mount()

static void check_mount ( char * device_name )

static

Definition at line 847 of file mkdosfs.c.

{
#ifndef _WIN32
  FILE *f;
  struct mntent *mnt;
 
  if ((f = setmntent (MOUNTED, "r")) == NULL)
    return;
  while ((mnt = getmntent (f)) != NULL)
    if (strcmp (device_name, mnt->mnt_fsname) == 0)
      die ("%s contains a mounted file system.");
  endmntent (f);
#endif
}

Referenced by main().

◆ count_blocks()

static int count_blocks ( char * filename )

static

Definition at line 782 of file mkdosfs.c.

{
#ifdef _WIN32
    int fd;
    DISK_GEOMETRY geom;
    BY_HANDLE_FILE_INFORMATION hinfo;
    DWORD ret;
    loff_t len = 0;
 
    if ((fd = open(filename, O_RDONLY)) < 0) {
        perror(filename);
        exit(1);
    }
    /*
     * This should probably use IOCTL_DISK_GET_LENGTH_INFO here, but
     * this ioctl is only available in XP and up.
     */
    if (is_device) {
        if (!DeviceIoControl((HANDLE)fd, IOCTL_DISK_GET_DRIVE_GEOMETRY, NULL, 0, &geom, sizeof(geom), &ret, NULL)) {
            errno = GetLastError();
            die("unable to get length for '%s'");
        }
        len = geom.Cylinders.QuadPart*geom.TracksPerCylinder*geom.SectorsPerTrack*BLOCK_SIZE;
    } else {
        if (!GetFileInformationByHandle((HANDLE)fd, &hinfo)) {
                errno = GetLastError();
                die("unable to get length for '%s'");
        }
        len = ((loff_t)hinfo.nFileSizeHigh << 32) | (loff_t)hinfo.nFileSizeLow;
    }
    close(fd);
    return len/BLOCK_SIZE;
#else
  loff_t high, low;
  int fd;
 
  if ((fd = open (filename, O_RDONLY)) < 0)
    {
      perror (filename);
      exit (1);
    }
  low = 0;
 
  for (high = 1; valid_offset (fd, high); high *= 2)
    low = high;
  while (low < high - 1)
    {
      const loff_t mid = (low + high) / 2;
 
      if (valid_offset (fd, mid))
    low = mid;
      else
    high = mid;
    }
  valid_offset (fd, 0);
  close (fd);
 
  return (low + 1) / BLOCK_SIZE;
#endif
}

Referenced by main().

◆ do_check()

static long do_check	(	char *	buffer,
		int	try,
		unsigned int	current_block
	)

static

Definition at line 644 of file mkdosfs.c.

{
  long got;
 
  if (llseek (dev, (loff_t)current_block * BLOCK_SIZE, SEEK_SET) /* Seek to the correct location */
      != (loff_t)current_block * BLOCK_SIZE)
    die ("seek failed during testing for blocks");
 
  got = read (dev, buffer, try * BLOCK_SIZE);   /* Try reading! */
  if (got < 0)
    got = 0;
 
  if (got & (BLOCK_SIZE - 1))
    printf ("Unexpected values in do_check: probably bugs\n");
  got /= BLOCK_SIZE;
 
  return got;
}

Referenced by check_blocks().

◆ establish_params()

static void establish_params	(	int	device_num,
		int	size
	)

static

Definition at line 924 of file mkdosfs.c.

{
  long loop_size;
  struct hd_geometry geometry;
  struct floppy_struct param;
 
  if ((0 == device_num) || ((device_num & 0xff00) == 0x0200))
    /* file image or floppy disk */
    {
      if (0 == device_num)
    {
      param.size = size/512;
      switch(param.size)
        {
        case 720:
          param.sect = 9 ;
          param.head = 2;
          break;
        case 1440:
          param.sect = 9;
          param.head = 2;
          break;
        case 2400:
          param.sect = 15;
          param.head = 2;
          break;
        case 2880:
          param.sect = 18;
          param.head = 2;
          break;
        case 5760:
          param.sect = 36;
          param.head = 2;
          break;
        default:
          /* fake values */
          param.sect = 32;
          param.head = 64;
          break;
        }
 
    }
      else  /* is a floppy diskette */
    {
      if (ioctl (dev, FDGETPRM, &param))    /*  Can we get the diskette geometry? */
        die ("unable to get diskette geometry for '%s'");
    }
      bs.secs_track = CT_LE_W(param.sect);  /*  Set up the geometry information */
      bs.heads = CT_LE_W(param.head);
      switch (param.size)   /*  Set up the media descriptor byte */
    {
    case 720:       /* 5.25", 2, 9, 40 - 360K */
      bs.media = (char) 0xfd;
      bs.cluster_size = (char) 2;
      bs.dir_entries[0] = (char) 112;
      bs.dir_entries[1] = (char) 0;
      break;
 
    case 1440:      /* 3.5", 2, 9, 80 - 720K */
      bs.media = (char) 0xf9;
      bs.cluster_size = (char) 2;
      bs.dir_entries[0] = (char) 112;
      bs.dir_entries[1] = (char) 0;
      break;
 
    case 2400:      /* 5.25", 2, 15, 80 - 1200K */
      bs.media = (char) 0xf9;
      bs.cluster_size = (char)(atari_format ? 2 : 1);
      bs.dir_entries[0] = (char) 224;
      bs.dir_entries[1] = (char) 0;
      break;
 
    case 5760:      /* 3.5", 2, 36, 80 - 2880K */
      bs.media = (char) 0xf0;
      bs.cluster_size = (char) 2;
      bs.dir_entries[0] = (char) 224;
      bs.dir_entries[1] = (char) 0;
      break;
 
    case 2880:      /* 3.5", 2, 18, 80 - 1440K */
    floppy_default:
      bs.media = (char) 0xf0;
      bs.cluster_size = (char)(atari_format ? 2 : 1);
      bs.dir_entries[0] = (char) 224;
      bs.dir_entries[1] = (char) 0;
      break;
 
    default:        /* Anything else */
      if (0 == device_num)
          goto def_hd_params;
      else
          goto floppy_default;
    }
    }
  else if ((device_num & 0xff00) == 0x0700) /* This is a loop device */
    {
      /* Can we get the loop geometry? This is in 512 byte blocks, always? */
      if (ioctl (dev, BLKGETSIZE, &loop_size))
    die ("unable to get loop geometry for '%s'");
      loop_size = loop_size >> 1;
 
      switch (loop_size)  /* Assuming the loop device -> floppy later */
    {
    case 720:       /* 5.25", 2, 9, 40 - 360K */
      bs.secs_track = CF_LE_W(9);
      bs.heads = CF_LE_W(2);
      bs.media = (char) 0xfd;
      bs.cluster_size = (char) 2;
      bs.dir_entries[0] = (char) 112;
      bs.dir_entries[1] = (char) 0;
      break;
 
    case 1440:      /* 3.5", 2, 9, 80 - 720K */
      bs.secs_track = CF_LE_W(9);
      bs.heads = CF_LE_W(2);
      bs.media = (char) 0xf9;
      bs.cluster_size = (char) 2;
      bs.dir_entries[0] = (char) 112;
      bs.dir_entries[1] = (char) 0;
      break;
 
    case 2400:      /* 5.25", 2, 15, 80 - 1200K */
      bs.secs_track = CF_LE_W(15);
      bs.heads = CF_LE_W(2);
      bs.media = (char) 0xf9;
      bs.cluster_size = (char)(atari_format ? 2 : 1);
      bs.dir_entries[0] = (char) 224;
      bs.dir_entries[1] = (char) 0;
      break;
 
    case 5760:      /* 3.5", 2, 36, 80 - 2880K */
      bs.secs_track = CF_LE_W(36);
      bs.heads = CF_LE_W(2);
      bs.media = (char) 0xf0;
      bs.cluster_size = (char) 2;
      bs.dir_entries[0] = (char) 224;
      bs.dir_entries[1] = (char) 0;
      break;
 
    case 2880:      /* 3.5", 2, 18, 80 - 1440K */
      bs.secs_track = CF_LE_W(18);
      bs.heads = CF_LE_W(2);
      bs.media = (char) 0xf0;
      bs.cluster_size = (char)(atari_format ? 2 : 1);
      bs.dir_entries[0] = (char) 224;
      bs.dir_entries[1] = (char) 0;
      break;
 
    default:        /* Anything else: default hd setup */
      printf("Loop device does not match a floppy size, using "
         "default hd params\n");
      bs.secs_track = CT_LE_W(32); /* these are fake values... */
      bs.heads = CT_LE_W(64);
      goto def_hd_params;
    }
    }
  else
    /* Must be a hard disk then! */
    {
      /* Can we get the drive geometry? (Note I'm not too sure about */
      /* whether to use HDIO_GETGEO or HDIO_REQ) */
      if (ioctl (dev, HDIO_GETGEO, &geometry))
    die ("unable to get drive geometry for '%s'");
      bs.secs_track = CT_LE_W(geometry.sectors);    /* Set up the geometry information */
      bs.heads = CT_LE_W(geometry.heads);
    def_hd_params:
      bs.media = (char) 0xf8; /* Set up the media descriptor for a hard drive */
      bs.dir_entries[0] = (char) 0; /* Default to 512 entries */
      bs.dir_entries[1] = (char) 2;
      /* For FAT32, use 4k clusters on sufficiently large file systems,
       * otherwise 1 sector per cluster. This is also what M$'s format
       * command does for FAT32. */
      bs.cluster_size = (char)
        (size_fat == 32 ?
         ((ll_t)blocks*SECTORS_PER_BLOCK >= 512*1024 ? 8 : 1) :
         4); /* FAT12 and FAT16: start at 4 sectors per cluster */
    }
}

Referenced by main().

◆ fatal_error()

static void fatal_error ( const char * fmt_string )

static

Definition at line 577 of file mkdosfs.c.

{
  fprintf (stderr, fmt_string, program_name, device_name);
  exit (1);         /* The error exit code is 1! */
}

Referenced by usage().

◆ get_list_blocks()

static void get_list_blocks ( char * filename )

static

Definition at line 736 of file mkdosfs.c.

{
  int i;
  FILE *listfile;
  unsigned long blockno;
 
  listfile = fopen (filename, "r");
  if (listfile == (FILE *) NULL)
    die ("Can't open file of bad blocks");
 
  while (!feof (listfile))
    {
      fscanf (listfile, "%ld\n", &blockno);
      for (i = 0; i < SECTORS_PER_BLOCK; i++)   /* Mark all of the sectors in the block as bad */
    mark_sector_bad (blockno * SECTORS_PER_BLOCK + i);
      badblocks++;
    }
  fclose (listfile);
 
  if (badblocks)
    printf ("%d bad block%s\n", badblocks,
        (badblocks > 1) ? "s" : "");
}

Referenced by main().

◆ llseek()

static loff_t llseek	(	int	fd,
		loff_t	offset,
		int	whence
	)

static

Definition at line 321 of file mkdosfs.c.

{
    loff_t actual;
 
    if (_llseek(fd, offset>>32, offset&0xffffffff, &actual, whence) != 0)
    return (loff_t)-1;
    return actual;
}

Referenced by do_check(), main(), and valid_offset().

◆ main()

int main	(	int argc	,
		char **	argv
	)

Definition at line 1728 of file mkdosfs.c.

{
  int c;
  char *tmp;
  char *listfile = NULL;
  FILE *msgfile;
#ifdef _WIN32
  static char dev_buf[] = "\\\\.\\X:";
#else
  struct stat statbuf;
#endif
  int i = 0, pos, ch;
  int create = 0;
 
  if (argc && *argv) {      /* What's the program name? */
    char *p;
    program_name = *argv;
#ifdef _WIN32
    if ((p = strrchr( program_name, '\\' )))
#else
    if ((p = strrchr( program_name, '/' )))
#endif
    program_name = p+1;
  }
 
  time(&create_time);
  volume_id = (long)create_time;    /* Default volume ID = creation time */
  check_atari();
 
  printf ("%s " VERSION " (" VERSION_DATE ")\n"
#ifdef _WIN32
      "Win32 port by Jens-Uwe Mager <jum@anubis.han.de>\n"
#endif
       , program_name);
 
  while ((c = getopt (argc, argv, "AcCf:F:Ii:l:m:n:r:R:s:S:v")) != EOF)
    /* Scan the command line for options */
    switch (c)
      {
      case 'A':     /* toggle Atari format */
    atari_format = !atari_format;
    break;
 
      case 'b':     /* b : location of backup boot sector */
    backup_boot = (int) strtol (optarg, &tmp, 0);
    if (*tmp || backup_boot < 2 || backup_boot > 0xffff)
      {
        printf ("Bad location for backup boot sector : %s\n", optarg);
        usage ();
      }
    break;
 
      case 'c':     /* c : Check FS as we build it */
    check = TRUE;
    break;
 
      case 'C':     /* C : Create a new file */
    create = TRUE;
    break;
 
      case 'f':     /* f : Choose number of FATs */
    nr_fats = (int) strtol (optarg, &tmp, 0);
    if (*tmp || nr_fats < 1 || nr_fats > 4)
      {
        printf ("Bad number of FATs : %s\n", optarg);
        usage ();
      }
    break;
 
      case 'F':     /* F : Choose FAT size */
    size_fat = (int) strtol (optarg, &tmp, 0);
    if (*tmp || (size_fat != 12 && size_fat != 16 && size_fat != 32))
      {
        printf ("Bad FAT type : %s\n", optarg);
        usage ();
      }
    size_fat_by_user = 1;
    break;
 
      case 'I':
    ignore_full_disk = 1;
    break;
 
      case 'i':     /* i : specify volume ID */
    volume_id = strtol(optarg, &tmp, 16);
    if ( *tmp )
      {
        printf("Volume ID must be a hexadecimal number\n");
        usage();
      }
    break;
 
      case 'l':     /* l : Bad block filename */
    listfile = optarg;
    break;
 
      case 'm':     /* m : Set boot message */
    if ( strcmp(optarg, "-") )
      {
        msgfile = fopen(optarg, "r");
        if ( !msgfile )
          perror(optarg);
      }
    else
      msgfile = stdin;
 
    if ( msgfile )
      {
        /* The boot code ends at offset 448 and needs a null terminator */
        i = MESSAGE_OFFSET;
        pos = 0;        /* We are at beginning of line */
        do
          {
        ch = getc(msgfile);
        switch (ch)
          {
          case '\r':    /* Ignore CRs */
          case '\0':    /* and nulls */
            break;
 
          case '\n':    /* LF -> CR+LF if necessary */
            if ( pos )  /* If not at beginning of line */
              {
            dummy_boot_code[i++] = '\r';
            pos = 0;
              }
            dummy_boot_code[i++] = '\n';
            break;
 
          case '\t':    /* Expand tabs */
            do
              {
            dummy_boot_code[i++] = ' ';
            pos++;
              }
            while ( pos % 8 && i < BOOTCODE_SIZE-1 );
            break;
 
          case EOF:
            dummy_boot_code[i++] = '\0'; /* Null terminator */
            break;
 
          default:
            dummy_boot_code[i++] = ch; /* Store character */
            pos++;  /* Advance position */
            break;
          }
          }
        while ( ch != EOF && i < BOOTCODE_SIZE-1 );
 
        /* Fill up with zeros */
        while( i < BOOTCODE_SIZE-1 )
        dummy_boot_code[i++] = '\0';
        dummy_boot_code[BOOTCODE_SIZE-1] = '\0'; /* Just in case */
 
        if ( ch != EOF )
          printf ("Warning: message too long; truncated\n");
 
        if ( msgfile != stdin )
          fclose(msgfile);
      }
    break;
 
      case 'n':     /* n : Volume name */
    sprintf(volume_name, "%-11.11s", optarg);
    break;
 
      case 'r':     /* r : Root directory entries */
    root_dir_entries = (int) strtol (optarg, &tmp, 0);
    if (*tmp || root_dir_entries < 16 || root_dir_entries > 32768)
      {
        printf ("Bad number of root directory entries : %s\n", optarg);
        usage ();
      }
    break;
 
      case 'R':     /* R : number of reserved sectors */
    reserved_sectors = (int) strtol (optarg, &tmp, 0);
    if (*tmp || reserved_sectors < 1 || reserved_sectors > 0xffff)
      {
        printf ("Bad number of reserved sectors : %s\n", optarg);
        usage ();
      }
    break;
 
      case 's':     /* s : Sectors per cluster */
    sectors_per_cluster = (int) strtol (optarg, &tmp, 0);
    if (*tmp || (sectors_per_cluster != 1 && sectors_per_cluster != 2
             && sectors_per_cluster != 4 && sectors_per_cluster != 8
           && sectors_per_cluster != 16 && sectors_per_cluster != 32
        && sectors_per_cluster != 64 && sectors_per_cluster != 128))
      {
        printf ("Bad number of sectors per cluster : %s\n", optarg);
        usage ();
      }
    break;
 
      case 'S':     /* S : Sector size */
    sector_size = (int) strtol (optarg, &tmp, 0);
    if (*tmp || (sector_size != 512 && sector_size != 1024 &&
             sector_size != 2048 && sector_size != 4096 &&
             sector_size != 8192 && sector_size != 16384 &&
             sector_size != 32768))
      {
        printf ("Bad logical sector size : %s\n", optarg);
        usage ();
      }
    sector_size_set = 1;
    break;
 
      case 'v':     /* v : Verbose execution */
    ++verbose;
    break;
 
      default:
    printf( "Unknown option: %c\n", c );
    usage ();
      }
 
  if (optind >= argc)
      usage();
  device_name = argv[optind];   /* Determine the number of blocks in the FS */
#ifdef _WIN32
  if (device_name[1] == ':' && device_name[2] == '\0') {
      dev_buf[4] = device_name[0];
      device_name = dev_buf;
      is_device = 1;
  }
#endif
  if (!create)
    i = count_blocks (device_name); /*  Have a look and see! */
  if (optind == argc - 2)   /*  Either check the user specified number */
    {
      blocks = (int) strtol (argv[optind + 1], &tmp, 0);
      if (!create && blocks != i)
    {
      fprintf (stderr, "Warning: block count mismatch: ");
      fprintf (stderr, "found %d but assuming %d.\n",i,blocks);
    }
    }
  else if (optind == argc - 1)  /*  Or use value found */
    {
      if (create)
    die( "Need intended size with -C." );
      blocks = i;
      tmp = "";
    }
  else
    usage ();
  if (*tmp)
    {
      printf ("Bad block count : %s\n", argv[optind + 1]);
      usage ();
    }
 
  if (check && listfile)    /* Auto and specified bad block handling are mutually */
    die ("-c and -l are incompatible");     /* exclusive of each other! */
 
  if (!create) {
    check_mount (device_name);  /* Is the device already mounted? */
    dev = open (device_name, O_RDWR|O_SHARED);  /* Is it a suitable device to build the FS on? */
    if (dev < 0)
      die ("unable to open %s");
#ifdef _WIN32
    if (is_device) {
        if (fsctl(dev, FSCTL_LOCK_VOLUME) == -1)
            die("unable to lock %s");
    }
#endif
  }
  else {
      loff_t offset = blocks*BLOCK_SIZE - 1;
      char null = 0;
      /* create the file */
      dev = open( device_name, O_RDWR|O_CREAT|O_TRUNC, 0775 );
      if (dev < 0)
    die("unable to create %s");
      /* seek to the intended end-1, and write one byte. this creates a
       * sparse-as-possible file of appropriate size. */
      if (llseek( dev, offset, SEEK_SET ) != offset)
    die( "seek failed" );
      if (write( dev, &null, 1 ) < 0)
    die( "write failed" );
      if (llseek( dev, 0, SEEK_SET ) != 0)
    die( "seek failed" );
  }
 
#ifdef _WIN32
  if (!is_device)
      check = 0;
  establish_params();
#else
  if (fstat (dev, &statbuf) < 0)
    die ("unable to stat %s");
  if (!S_ISBLK (statbuf.st_mode)) {
    statbuf.st_rdev = 0;
    check = 0;
  }
  else
    /*
     * Ignore any 'full' fixed disk devices, if -I is not given.
     * On a MO-disk one doesn't need partitions.  The filesytem can go
     * directly to the whole disk.  Under other OSes this is known as
     * the 'superfloppy' format.  As I don't know how to find out if
     * this is a MO disk I introduce a -I (ignore) switch.  -Joey
     */
    if (!ignore_full_disk && (
    (statbuf.st_rdev & 0xff3f) == 0x0300 || /* hda, hdb */
    (statbuf.st_rdev & 0xff0f) == 0x0800 || /* sd */
    (statbuf.st_rdev & 0xff3f) == 0x0d00 || /* xd */
    (statbuf.st_rdev & 0xff3f) == 0x1600 )  /* hdc, hdd */
    )
      die ("Will not try to make filesystem on '%s'");
 
  establish_params (statbuf.st_rdev,statbuf.st_size);
                                /* Establish the media parameters */
#endif
 
  setup_tables ();      /* Establish the file system tables */
 
  if (check)            /* Determine any bad block locations and mark them */
    check_blocks ();
  else if (listfile)
    get_list_blocks (listfile);
 
  write_tables ();      /* Write the file system tables away! */
 
#ifdef _WIN32
    if (is_device) {
        if (fsctl(dev, FSCTL_DISMOUNT_VOLUME) == -1)
            die("unable to dismount %s");
        if (fsctl(dev, FSCTL_UNLOCK_VOLUME) == -1)
            die("unable to unlock %s");
    }
#endif
  exit (0);         /* Terminate with no errors! */
}

◆ mark_FAT_cluster()

static void mark_FAT_cluster	(	int	cluster,
		unsigned int	value
	)

static

Definition at line 587 of file mkdosfs.c.

{
  switch( size_fat ) {
    case 12:
      value &= 0x0fff;
      if (((cluster * 3) & 0x1) == 0)
    {
      fat[3 * cluster / 2] = (unsigned char) (value & 0x00ff);
      fat[(3 * cluster / 2) + 1] = (unsigned char) ((fat[(3 * cluster / 2) + 1] & 0x00f0)
                         | ((value & 0x0f00) >> 8));
    }
      else
    {
      fat[3 * cluster / 2] = (unsigned char) ((fat[3 * cluster / 2] & 0x000f) | ((value & 0x000f) << 4));
      fat[(3 * cluster / 2) + 1] = (unsigned char) ((value & 0x0ff0) >> 4);
    }
      break;
 
    case 16:
      value &= 0xffff;
      fat[2 * cluster] = (unsigned char) (value & 0x00ff);
      fat[(2 * cluster) + 1] = (unsigned char) (value >> 8);
      break;
 
    case 32:
      value &= 0xfffffff;
      fat[4 * cluster] =       (unsigned char)  (value & 0x000000ff);
      fat[(4 * cluster) + 1] = (unsigned char) ((value & 0x0000ff00) >> 8);
      fat[(4 * cluster) + 2] = (unsigned char) ((value & 0x00ff0000) >> 16);
      fat[(4 * cluster) + 3] = (unsigned char) ((value & 0xff000000) >> 24);
      break;
 
    default:
      die("Bad FAT size (not 12, 16, or 32)");
  }
}

Referenced by mark_FAT_sector(), and setup_tables().

◆ mark_FAT_sector()

static void mark_FAT_sector	(	int	sector,
		unsigned int	value
	)

static

Definition at line 628 of file mkdosfs.c.

{
  int cluster;
 
  cluster = (sector - start_data_sector) / (int) (bs.cluster_size) /
        (sector_size/HARD_SECTOR_SIZE);
  if (cluster < 0)
    die ("Invalid cluster number in mark_FAT_sector: probably bug!");
 
  mark_FAT_cluster (cluster, value);
}

◆ setup_tables()

static void setup_tables ( void )

static

Definition at line 1108 of file mkdosfs.c.

{
  unsigned num_sectors;
  unsigned cluster_count = 0, fat_length;
  unsigned fatdata;         /* Sectors for FATs + data area */
  struct tm *ctime;
  struct msdos_volume_info *vi = (size_fat == 32 ? &bs.fat32.vi : &bs.oldfat.vi);
 
  if (atari_format)
      /* On Atari, the first few bytes of the boot sector are assigned
       * differently: The jump code is only 2 bytes (and m68k machine code
       * :-), then 6 bytes filler (ignored), then 3 byte serial number. */
    strncpy( bs.system_id-1, "mkdosf", 6 );
  else
    strcpy (bs.system_id, "mkdosfs");
  if (sectors_per_cluster)
    bs.cluster_size = (char) sectors_per_cluster;
  if (size_fat == 32)
    {
      /* Under FAT32, the root dir is in a cluster chain, and this is
       * signalled by bs.dir_entries being 0. */
      bs.dir_entries[0] = bs.dir_entries[1] = (char) 0;
      root_dir_entries = 0;
    }
  else if (root_dir_entries)
    {
      /* Override default from establish_params() */
      bs.dir_entries[0] = (char) (root_dir_entries & 0x00ff);
      bs.dir_entries[1] = (char) ((root_dir_entries & 0xff00) >> 8);
    }
  else
    root_dir_entries = bs.dir_entries[0] + (bs.dir_entries[1] << 8);
 
  if (atari_format) {
    bs.system_id[5] = (unsigned char) (volume_id & 0x000000ff);
    bs.system_id[6] = (unsigned char) ((volume_id & 0x0000ff00) >> 8);
    bs.system_id[7] = (unsigned char) ((volume_id & 0x00ff0000) >> 16);
  }
  else {
    vi->volume_id[0] = (unsigned char) (volume_id & 0x000000ff);
    vi->volume_id[1] = (unsigned char) ((volume_id & 0x0000ff00) >> 8);
    vi->volume_id[2] = (unsigned char) ((volume_id & 0x00ff0000) >> 16);
    vi->volume_id[3] = (unsigned char) (volume_id >> 24);
  }
 
  if (!atari_format) {
    memcpy(vi->volume_label, volume_name, 11);
 
    memcpy(bs.boot_jump, dummy_boot_jump, 3);
    /* Patch in the correct offset to the boot code */
    bs.boot_jump[1] = ((size_fat == 32 ?
            (char *)&bs.fat32.boot_code :
            (char *)&bs.oldfat.boot_code) -
               (char *)&bs) - 2;
 
    if (size_fat == 32) {
    if (dummy_boot_code[BOOTCODE_FAT32_SIZE-1])
      printf ("Warning: message too long; truncated\n");
    dummy_boot_code[BOOTCODE_FAT32_SIZE-1] = 0;
    memcpy(bs.fat32.boot_code, dummy_boot_code, BOOTCODE_FAT32_SIZE);
    }
    else {
    memcpy(bs.oldfat.boot_code, dummy_boot_code, BOOTCODE_SIZE);
    }
    bs.boot_sign = CT_LE_W(BOOT_SIGN);
  }
  else {
    memcpy(bs.boot_jump, dummy_boot_jump_m68k, 2);
  }
  if (verbose >= 2)
    printf( "Boot jump code is %02x %02x\n",
        bs.boot_jump[0], bs.boot_jump[1] );
 
  if (!reserved_sectors)
      reserved_sectors = (size_fat == 32) ? 32 : 1;
  else {
      if (size_fat == 32 && reserved_sectors < 2)
      die("On FAT32 at least 2 reserved sectors are needed.");
  }
  bs.reserved = CT_LE_W(reserved_sectors);
  if (verbose >= 2)
    printf( "Using %d reserved sectors\n", reserved_sectors );
  bs.fats = (char) nr_fats;
  if (!atari_format || size_fat == 32)
    bs.hidden = CT_LE_L(0);
  else
    /* In Atari format, hidden is a 16 bit field */
    memset( &bs.hidden, 0, 2 );
 
  num_sectors = (ll_t)blocks*BLOCK_SIZE/sector_size;
  if (!atari_format) {
    unsigned fatlength12, fatlength16, fatlength32;
    unsigned maxclust12, maxclust16, maxclust32;
    unsigned clust12, clust16, clust32;
    int maxclustsize;
 
    fatdata = num_sectors - cdiv (root_dir_entries * 32, sector_size) -
          reserved_sectors;
 
    if (sectors_per_cluster)
      bs.cluster_size = maxclustsize = sectors_per_cluster;
    else
      /* An initial guess for bs.cluster_size should already be set */
      maxclustsize = 128;
 
    if (verbose >= 2)
      printf( "%d sectors for FAT+data, starting with %d sectors/cluster\n",
          fatdata, bs.cluster_size );
    do {
      if (verbose >= 2)
    printf( "Trying with %d sectors/cluster:\n", bs.cluster_size );
 
      /* The factor 2 below avoids cut-off errors for nr_fats == 1.
       * The "nr_fats*3" is for the reserved first two FAT entries */
      clust12 = 2*((ll_t) fatdata *sector_size + nr_fats*3) /
    (2*(int) bs.cluster_size * sector_size + nr_fats*3);
      fatlength12 = cdiv (((clust12+2) * 3 + 1) >> 1, sector_size);
      /* Need to recalculate number of clusters, since the unused parts of the
       * FATS and data area together could make up space for an additional,
       * not really present cluster. */
      clust12 = (fatdata - nr_fats*fatlength12)/bs.cluster_size;
      maxclust12 = (fatlength12 * 2 * sector_size) / 3;
      if (maxclust12 > MAX_CLUST_12)
    maxclust12 = MAX_CLUST_12;
      if (verbose >= 2)
    printf( "FAT12: #clu=%u, fatlen=%u, maxclu=%u, limit=%u\n",
        clust12, fatlength12, maxclust12, MAX_CLUST_12 );
      if (clust12 > maxclust12-2) {
    clust12 = 0;
    if (verbose >= 2)
      printf( "FAT12: too much clusters\n" );
      }
 
      clust16 = ((ll_t) fatdata *sector_size + nr_fats*4) /
    ((int) bs.cluster_size * sector_size + nr_fats*2);
      fatlength16 = cdiv ((clust16+2) * 2, sector_size);
      /* Need to recalculate number of clusters, since the unused parts of the
       * FATS and data area together could make up space for an additional,
       * not really present cluster. */
      clust16 = (fatdata - nr_fats*fatlength16)/bs.cluster_size;
      maxclust16 = (fatlength16 * sector_size) / 2;
      if (maxclust16 > MAX_CLUST_16)
    maxclust16 = MAX_CLUST_16;
      if (verbose >= 2)
    printf( "FAT16: #clu=%u, fatlen=%u, maxclu=%u, limit=%u\n",
        clust16, fatlength16, maxclust16, MAX_CLUST_16 );
      if (clust16 > maxclust16-2) {
    if (verbose >= 2)
      printf( "FAT16: too much clusters\n" );
    clust16 = 0;
      }
      /* The < 4078 avoids that the filesystem will be misdetected as having a
       * 12 bit FAT. */
      if (clust16 < FAT12_THRESHOLD && !(size_fat_by_user && size_fat == 16)) {
    if (verbose >= 2)
      printf( clust16 < FAT12_THRESHOLD ?
          "FAT16: would be misdetected as FAT12\n" :
          "FAT16: too much clusters\n" );
    clust16 = 0;
      }
 
      clust32 = ((ll_t) fatdata *sector_size + nr_fats*8) /
    ((int) bs.cluster_size * sector_size + nr_fats*4);
      fatlength32 = cdiv ((clust32+2) * 4, sector_size);
      /* Need to recalculate number of clusters, since the unused parts of the
       * FATS and data area together could make up space for an additional,
       * not really present cluster. */
      clust32 = (fatdata - nr_fats*fatlength32)/bs.cluster_size;
      maxclust32 = (fatlength32 * sector_size) / 4;
      if (maxclust32 > MAX_CLUST_32)
    maxclust32 = MAX_CLUST_32;
      if (verbose >= 2)
    printf( "FAT32: #clu=%u, fatlen=%u, maxclu=%u, limit=%u\n",
        clust32, fatlength32, maxclust32, MAX_CLUST_32 );
      if (clust32 > maxclust32) {
    clust32 = 0;
    if (verbose >= 2)
      printf( "FAT32: too much clusters\n" );
      }
 
      if ((clust12 && (size_fat == 0 || size_fat == 12)) ||
      (clust16 && (size_fat == 0 || size_fat == 16)) ||
      (clust32 && size_fat == 32))
    break;
 
      bs.cluster_size <<= 1;
    } while (bs.cluster_size && bs.cluster_size <= maxclustsize);
 
    /* Use the optimal FAT size if not specified;
     * FAT32 is (not yet) choosen automatically */
    if (!size_fat) {
    size_fat = (clust16 > clust12) ? 16 : 12;
    if (verbose >= 2)
      printf( "Choosing %d bits for FAT\n", size_fat );
    }
 
    switch (size_fat) {
      case 12:
    cluster_count = clust12;
    fat_length = fatlength12;
    bs.fat_length = CT_LE_W(fatlength12);
    memcpy(vi->fs_type, MSDOS_FAT12_SIGN, 8);
    break;
 
      case 16:
    if (clust16 < FAT12_THRESHOLD) {
        if (size_fat_by_user) {
        fprintf( stderr, "WARNING: Not enough clusters for a "
             "16 bit FAT! The filesystem will be\n"
             "misinterpreted as having a 12 bit FAT without "
             "mount option \"fat=16\".\n" );
        }
        else {
        fprintf( stderr, "This filesystem has an unfortunate size. "
             "A 12 bit FAT cannot provide\n"
             "enough clusters, but a 16 bit FAT takes up a little "
             "bit more space so that\n"
             "the total number of clusters becomes less than the "
             "threshold value for\n"
             "distinction between 12 and 16 bit FATs.\n" );
        die( "Make the file system a bit smaller manually." );
        }
    }
    cluster_count = clust16;
    fat_length = fatlength16;
    bs.fat_length = CT_LE_W(fatlength16);
    memcpy(vi->fs_type, MSDOS_FAT16_SIGN, 8);
    break;
 
      case 32:
    cluster_count = clust32;
    fat_length = fatlength32;
    bs.fat_length = CT_LE_W(0);
    bs.fat32.fat32_length = CT_LE_L(fatlength32);
    memcpy(vi->fs_type, MSDOS_FAT32_SIGN, 8);
    break;
 
      default:
    die("FAT not 12, 16 or 32 bits");
    }
  }
  else {
    unsigned clusters, maxclust;
 
    /* GEMDOS always uses a 12 bit FAT on floppies, and always a 16 bit FAT on
     * hard disks. So use 12 bit if the size of the file system suggests that
     * this fs is for a floppy disk, if the user hasn't explicitly requested a
     * size.
     */
    if (!size_fat)
      size_fat = (num_sectors == 1440 || num_sectors == 2400 ||
          num_sectors == 2880 || num_sectors == 5760) ? 12 : 16;
    if (verbose >= 2)
      printf( "Choosing %d bits for FAT\n", size_fat );
 
    /* Atari format: cluster size should be 2, except explicitly requested by
     * the user, since GEMDOS doesn't like other cluster sizes very much.
     * Instead, tune the sector size for the FS to fit.
     */
    bs.cluster_size = sectors_per_cluster ? sectors_per_cluster : 2;
    if (!sector_size_set) {
      while( num_sectors > GEMDOS_MAX_SECTORS ) {
    num_sectors >>= 1;
    sector_size <<= 1;
      }
    }
    if (verbose >= 2)
      printf( "Sector size must be %d to have less than %d log. sectors\n",
          sector_size, GEMDOS_MAX_SECTORS );
 
    /* Check if there are enough FAT indices for how much clusters we have */
    do {
      fatdata = num_sectors - cdiv (root_dir_entries * 32, sector_size) -
        reserved_sectors;
      /* The factor 2 below avoids cut-off errors for nr_fats == 1 and
       * size_fat == 12
       * The "2*nr_fats*size_fat/8" is for the reserved first two FAT entries
       */
      clusters = (2*((ll_t)fatdata*sector_size - 2*nr_fats*size_fat/8)) /
         (2*((int)bs.cluster_size*sector_size + nr_fats*size_fat/8));
      fat_length = cdiv( (clusters+2)*size_fat/8, sector_size );
      /* Need to recalculate number of clusters, since the unused parts of the
       * FATS and data area together could make up space for an additional,
       * not really present cluster. */
      clusters = (fatdata - nr_fats*fat_length)/bs.cluster_size;
      maxclust = (fat_length*sector_size*8)/size_fat;
      if (verbose >= 2)
    printf( "ss=%d: #clu=%d, fat_len=%d, maxclu=%d\n",
        sector_size, clusters, fat_length, maxclust );
 
      /* last 10 cluster numbers are special (except FAT32: 4 high bits rsvd);
       * first two numbers are reserved */
      if (maxclust <= (size_fat == 32 ? MAX_CLUST_32 : (1<<size_fat)-0x10) &&
      clusters <= maxclust-2)
    break;
      if (verbose >= 2)
    printf( clusters > maxclust-2 ?
        "Too many clusters\n" : "FAT too big\n" );
 
      /* need to increment sector_size once more to  */
      if (sector_size_set)
      die( "With this sector size, the maximum number of FAT entries "
           "would be exceeded." );
      num_sectors >>= 1;
      sector_size <<= 1;
    } while( sector_size <= GEMDOS_MAX_SECTOR_SIZE );
 
    if (sector_size > GEMDOS_MAX_SECTOR_SIZE)
      die( "Would need a sector size > 16k, which GEMDOS can't work with");
 
    cluster_count = clusters;
    if (size_fat != 32)
    bs.fat_length = CT_LE_W(fat_length);
    else {
    bs.fat_length = 0;
    bs.fat32.fat32_length = CT_LE_L(fat_length);
    }
  }
 
  bs.sector_size[0] = (char) (sector_size & 0x00ff);
  bs.sector_size[1] = (char) ((sector_size & 0xff00) >> 8);
 
  if (size_fat == 32)
    {
      /* set up additional FAT32 fields */
      bs.fat32.flags = CT_LE_W(0);
      bs.fat32.version[0] = 0;
      bs.fat32.version[1] = 0;
      bs.fat32.root_cluster = CT_LE_L(2);
      bs.fat32.info_sector = CT_LE_W(1);
      if (!backup_boot)
    backup_boot = (reserved_sectors >= 7) ? 6 :
              (reserved_sectors >= 2) ? reserved_sectors-1 : 0;
      else
    {
      if (backup_boot == 1)
        die("Backup boot sector must be after sector 1");
      else if (backup_boot >= reserved_sectors)
        die("Backup boot sector must be a reserved sector");
    }
      if (verbose >= 2)
    printf( "Using sector %d as backup boot sector (0 = none)\n",
        backup_boot );
      bs.fat32.backup_boot = CT_LE_W(backup_boot);
      memset( &bs.fat32.reserved2, 0, sizeof(bs.fat32.reserved2) );
    }
 
  if (atari_format) {
      /* Just some consistency checks */
      if (num_sectors >= GEMDOS_MAX_SECTORS)
      die( "GEMDOS can't handle more than 65531 sectors" );
      else if (num_sectors >= OLDGEMDOS_MAX_SECTORS)
      printf( "Warning: More than 32765 sector need TOS 1.04 "
          "or higher.\n" );
  }
  if (num_sectors >= 65536)
    {
      bs.sectors[0] = (char) 0;
      bs.sectors[1] = (char) 0;
      bs.total_sect = CT_LE_L(num_sectors);
    }
  else
    {
      bs.sectors[0] = (char) (num_sectors & 0x00ff);
      bs.sectors[1] = (char) ((num_sectors & 0xff00) >> 8);
      if (!atari_format)
      bs.total_sect = CT_LE_L(0);
    }
 
  if (!atari_format)
    vi->ext_boot_sign = MSDOS_EXT_SIGN;
 
  if (!cluster_count)
    {
      if (sectors_per_cluster)  /* If yes, die if we'd spec'd sectors per cluster */
    die ("Too many clusters for file system - try more sectors per cluster");
      else
    die ("Attempting to create a too large file system");
    }
 
 
  /* The two following vars are in hard sectors, i.e. 512 byte sectors! */
  start_data_sector = (reserved_sectors + nr_fats * fat_length) *
              (sector_size/HARD_SECTOR_SIZE);
  start_data_block = (start_data_sector + SECTORS_PER_BLOCK - 1) /
             SECTORS_PER_BLOCK;
 
  if (blocks < start_data_block + 32)   /* Arbitrary undersize file system! */
    die ("Too few blocks for viable file system");
 
  if (verbose)
    {
      printf("%s has %d head%s and %d sector%s per track,\n",
         device_name, CF_LE_W(bs.heads), (CF_LE_W(bs.heads) != 1) ? "s" : "",
         CF_LE_W(bs.secs_track), (CF_LE_W(bs.secs_track) != 1) ? "s" : "");
      printf("logical sector size is %d,\n",sector_size);
      printf("using 0x%02x media descriptor, with %d sectors;\n",
         (int) (bs.media), num_sectors);
      printf("file system has %d %d-bit FAT%s and %d sector%s per cluster.\n",
         (int) (bs.fats), size_fat, (bs.fats != 1) ? "s" : "",
         (int) (bs.cluster_size), (bs.cluster_size != 1) ? "s" : "");
      printf ("FAT size is %d sector%s, and provides %d cluster%s.\n",
          fat_length, (fat_length != 1) ? "s" : "",
          cluster_count, (cluster_count != 1) ? "s" : "");
      if (size_fat != 32)
    printf ("Root directory contains %d slots.\n",
        (int) (bs.dir_entries[0]) + (int) (bs.dir_entries[1]) * 256);
      printf ("Volume ID is %08lx, ", volume_id &
          (atari_format ? 0x00ffffff : 0xffffffff));
      if ( strcmp(volume_name, "           ") )
    printf("volume label %s.\n", volume_name);
      else
    printf("no volume label.\n");
    }
 
  /* Make the file allocation tables! */
 
  if ((fat = (unsigned char *) malloc (fat_length * sector_size)) == NULL)
    die ("unable to allocate space for FAT image in memory");
 
  memset( fat, 0, fat_length * sector_size );
 
  mark_FAT_cluster (0, 0xffffffff); /* Initial fat entries */
  mark_FAT_cluster (1, 0xffffffff);
  fat[0] = (unsigned char) bs.media;    /* Put media type in first byte! */
  if (size_fat == 32) {
    /* Mark cluster 2 as EOF (used for root dir) */
    mark_FAT_cluster (2, FAT_EOF);
  }
 
  /* Make the root directory entries */
 
  size_root_dir = (size_fat == 32) ?
          bs.cluster_size*sector_size :
          (((int)bs.dir_entries[1]*256+(int)bs.dir_entries[0]) *
           sizeof (struct msdos_dir_entry));
  if ((root_dir = (struct msdos_dir_entry *) malloc (size_root_dir)) == NULL)
    {
      free (fat);       /* Tidy up before we die! */
      die ("unable to allocate space for root directory in memory");
    }
 
  memset(root_dir, 0, size_root_dir);
  if ( memcmp(volume_name, "           ", 11) )
    {
      struct msdos_dir_entry *de = &root_dir[0];
      memcpy(de->name, volume_name, 11);
      de->attr = ATTR_VOLUME;
      ctime = localtime(&create_time);
      de->time = CT_LE_W((unsigned short)((ctime->tm_sec >> 1) +
              (ctime->tm_min << 5) + (ctime->tm_hour << 11)));
      de->date = CT_LE_W((unsigned short)(ctime->tm_mday +
                      ((ctime->tm_mon+1) << 5) +
                      ((ctime->tm_year-80) << 9)));
      de->ctime_ms = 0;
      de->ctime = de->time;
      de->cdate = de->date;
      de->adate = de->date;
      de->starthi = CT_LE_W(0);
      de->start = CT_LE_W(0);
      de->size = CT_LE_L(0);
    }
 
  if (size_fat == 32) {
    /* For FAT32, create an info sector */
    struct fat32_fsinfo *info;
 
    if (!(info_sector = malloc( sector_size )))
      die("Out of memory");
    memset(info_sector, 0, sector_size);
    /* fsinfo structure is at offset 0x1e0 in info sector by observation */
    info = (struct fat32_fsinfo *)(info_sector + 0x1e0);
 
    /* Info sector magic */
    info_sector[0] = 'R';
    info_sector[1] = 'R';
    info_sector[2] = 'a';
    info_sector[3] = 'A';
 
    /* Magic for fsinfo structure */
    info->signature = CT_LE_L(0x61417272);
    /* We've allocated cluster 2 for the root dir. */
    info->free_clusters = CT_LE_L(cluster_count - 1);
    info->next_cluster = CT_LE_L(2);
 
    /* Info sector also must have boot sign */
    *(__u16 *)(info_sector + 0x1fe) = CT_LE_W(BOOT_SIGN);
  }
 
  if (!(blank_sector = malloc( sector_size )))
      die( "Out of memory" );
  memset(blank_sector, 0, sector_size);
}

Referenced by main().

◆ usage()

void usage ( void )

Definition at line 1686 of file mkdosfs.c.

{
  fatal_error("\
Usage: mkdosfs [-A] [-c] [-C] [-v] [-I] [-l bad-block-file] [-b backup-boot-sector]\n\
       [-m boot-msg-file] [-n volume-name] [-i volume-id]\n\
       [-s sectors-per-cluster] [-S logical-sector-size] [-f number-of-FATs]\n\
       [-F fat-size] [-r root-dir-entries] [-R reserved-sectors]\n\
       /dev/name [blocks]\n");
}

Referenced by main().

◆ valid_offset()

static int valid_offset	(	int	fd,
		loff_t	offset
	)

static

Definition at line 766 of file mkdosfs.c.

{
  char ch;
 
  if (llseek (fd, offset, SEEK_SET) < 0)
    return FALSE;
  if (read (fd, &ch, 1) < 1)
    return FALSE;
  return TRUE;
}

Referenced by count_blocks().

◆ write_tables()

static void write_tables ( void )

static

Definition at line 1629 of file mkdosfs.c.

{
  int x;
  int fat_length;
#ifdef _WIN32
  int blk;
#endif
 
  fat_length = (size_fat == 32) ?
           CF_LE_L(bs.fat32.fat32_length) : CF_LE_W(bs.fat_length);
 
  seekto( 0, "start of device" );
  /* clear all reserved sectors */
  for( x = 0; x < reserved_sectors; ++x )
    writebuf( blank_sector, sector_size, "reserved sector" );
  /* seek back to sector 0 and write the boot sector */
  seekto( 0, "boot sector" );
  writebuf( (char *) &bs, sizeof (struct msdos_boot_sector), "boot sector" );
  /* on FAT32, write the info sector and backup boot sector */
  if (size_fat == 32)
    {
      seekto( CF_LE_W(bs.fat32.info_sector)*sector_size, "info sector" );
      writebuf( info_sector, 512, "info sector" );
      if (backup_boot != 0)
    {
      seekto( backup_boot*sector_size, "backup boot sector" );
      writebuf( (char *) &bs, sizeof (struct msdos_boot_sector),
            "backup boot sector" );
    }
    }
  /* seek to start of FATS and write them all */
  seekto( reserved_sectors*sector_size, "first FAT" );
  for (x = 1; x <= nr_fats; x++)
#ifdef _WIN32
      /*
       * WIN32 appearently has problems writing very large chunks directly
       * to disk devices. To not produce errors because of resource shortages
       * split up the write in sector size chunks.
       */
      for (blk = 0; blk < fat_length; blk++)
          writebuf(fat+blk*sector_size, sector_size, "FAT");
#else
    writebuf( fat, fat_length * sector_size, "FAT" );
#endif
  /* Write the root directory directly after the last FAT. This is the root
   * dir area on FAT12/16, and the first cluster on FAT32. */
  writebuf( (char *) root_dir, size_root_dir, "root directory" );
 
  if (info_sector) free( info_sector );
  free (root_dir);   /* Free up the root directory space from setup_tables */
  free (fat);  /* Free up the fat table space reserved during setup_tables */
}

Referenced by create_patch(), and main().

Variable Documentation

◆ attribute

struct fat32_fsinfo __attribute__

◆ adate

__u16 adate

Definition at line 6 of file mkdosfs.c.

◆ atari_format

int atari_format = 0

static

Definition at line 521 of file mkdosfs.c.

Referenced by check_atari(), establish_params(), main(), and setup_tables().

◆ attr

__u8 attr

Definition at line 1 of file mkdosfs.c.

◆ backup_boot

int backup_boot = 0

static

Definition at line 530 of file mkdosfs.c.

Referenced by check_backup_boot(), main(), setup_tables(), and write_tables().

◆ badblocks

int badblocks = 0

static

Definition at line 532 of file mkdosfs.c.

Referenced by check_blocks(), and get_list_blocks().

◆ blank_sector

char* blank_sector

static

Definition at line 548 of file mkdosfs.c.

Referenced by setup_tables(), and write_tables().

◆ blocks

int blocks

static

Definition at line 527 of file mkdosfs.c.

Referenced by __ext4_journal_start(), add_block_index(), alarm_intr(), check_blocks(), chop_fourth_byte(), decode_modified_limit4(), establish_params(), ext2_read_inode(), ext2_write_inode(), Ext2Format(), ext3_add_entry(), ext4_ext_convert_to_initialized(), main(), setup_tables(), test__hwrite(), test__lwrite(), and test_wintrust_digest().

◆ boot_code

__u8 boot_code

Definition at line 441 of file mkdosfs.c.

◆ boot_jump

__u8 boot_jump[3]

Definition at line 0 of file mkdosfs.c.

◆ bs

◆ cdate

__u16 cdate

Definition at line 5 of file mkdosfs.c.

◆ check

int check = FALSE

static

Definition at line 522 of file mkdosfs.c.

Referenced by main().

◆ cluster_size

uint8_t cluster_size

Definition at line 4 of file mkdosfs.c.

Referenced by get_cluster_data(), GetDiskInfoA(), read_boot(), ScriptXtoCP(), and test_GetDiskInfoA().

◆ create_time

time_t create_time

static

Definition at line 525 of file mkdosfs.c.

Referenced by alloc_cookie(), main(), and setup_tables().

◆ ctime

__CRT_INLINE char *__cdecl ctime

Definition at line 4 of file mkdosfs.c.

Referenced by CloseTrace(), create_msft_typelib(), disk_set_information(), LogErrorConsole(), LogInfoConsole(), LogOpen(), LogWarningConsole(), OpenTrace(), send_utimes_command(), send_utimes_command_dir(), setup_tables(), test_CallNtPowerInformation(), Test_ctime(), test_ctime(), vers_write(), write_one_file(), and WriteDefaultFirewallPrefs().

◆ ctime_ms

__u8 ctime_ms

Definition at line 3 of file mkdosfs.c.

◆ currently_testing

unsigned int currently_testing = 0

static

Definition at line 538 of file mkdosfs.c.

Referenced by alarm_intr(), and check_blocks().

◆ date

__u16 date

Definition at line 8 of file mkdosfs.c.

Referenced by _strdate(), _strdate_s(), _wstrdate(), _wstrdate_s(), add_cert_to_view(), add_date_string_to_control(), create_date(), create_date_constr(), create_utc_string(), date_dos2unix(), Date_getDate(), Date_getDay(), Date_getFullYear(), Date_getHours(), Date_getMilliseconds(), Date_getMinutes(), Date_getMonth(), Date_getSeconds(), Date_getTime(), Date_getTimezoneOffset(), Date_getUTCDate(), Date_getUTCDay(), Date_getUTCFullYear(), Date_getUTCHours(), Date_getUTCMilliseconds(), Date_getUTCMinutes(), Date_getUTCMonth(), Date_getUTCSeconds(), Date_getYear(), Date_setDate(), Date_setFullYear(), Date_setHours(), Date_setMilliseconds(), Date_setMinutes(), Date_setMonth(), Date_setSeconds(), Date_setTime(), Date_setUTCDate(), Date_setUTCFullYear(), Date_setUTCHours(), Date_setUTCMilliseconds(), Date_setUTCMinutes(), Date_setUTCMonth(), Date_setUTCSeconds(), Date_setYear(), Date_toDateString(), Date_toISOString(), Date_toLocaleDateString(), Date_toLocaleString(), Date_toLocaleTimeString(), Date_toString(), Date_toTimeString(), Date_valueOf(), DateConstr_value(), dateobj_to_date_string(), dateobj_to_string(), DATETIME_ApplySelectedField(), DATETIME_IncreaseField(), DATETIME_IsDateInValidRange(), DATETIME_ReturnTxt(), daylight_saving_ta(), ExtCabCallback(), file_get_DateLastModified(), file_stat(), filetime_to_str(), folder_get_DateCreated(), folder_get_DateLastAccessed(), folder_get_DateLastModified(), get_bios_releasedate(), get_date_format(), get_date_from_filetime(), get_date_str(), Global_Date(), Global_Now(), local_time(), MONTHCAL_CalculateDayOfWeek(), MONTHCAL_CircleDay(), MONTHCAL_GetDayPos(), MONTHCAL_GetDayRect(), MONTHCAL_GetMaxDate(), MONTHCAL_GetMinDate(), MONTHCAL_GetMonth(), MONTHCAL_GetNextMonth(), MONTHCAL_GetPrevMonth(), MONTHCAL_IsDateInValidRange(), MONTHCAL_PaintCalendar(), msi_publish_install_properties(), CAttributesDialog::OnInitDialog(), output_int_len(), return_date(), SHFormatDateTimeW(), summaryinfo_invoke(), test_GetFile(), test_hash_value(), test_IWinHttpRequest(), test_publish(), test_register_product(), test_strdate(), test_VarFormatFromTokens(), test_wstrdate(), TIME_DayLightCompareDate(), to_system_time(), urlcache_delete_file(), utc(), VarBstrFromDate(), and VARIANT_FormatDate().

◆ dev

int dev = -1

static

Definition at line 536 of file mkdosfs.c.

◆ device_name

char* device_name = NULL

static

Definition at line 520 of file mkdosfs.c.

Referenced by check_mount(), fatal_error(), main(), and setup_tables().

◆ dir_entries

uint8_t dir_entries

Definition at line 7 of file mkdosfs.c.

◆ drive_number

uint8_t drive_number

Definition at line 0 of file mkdosfs.c.

◆ dummy_boot_code

char dummy_boot_code[BOOTCODE_SIZE]

Initial value:

=
  "\x0e"            
  "\x1f"            
  "\xbe\x5b\x7c"        
                
  "\xac"            
  "\x22\xc0"            
  "\x74\x0b"            
  "\x56"            
  "\xb4\x0e"            
  "\xbb\x07\x00"        
  "\xcd\x10"            
  "\x5e"            
  "\xeb\xf0"            
                
  "\x32\xe4"            
  "\xcd\x16"            
  "\xcd\x19"            
  "\xeb\xfe"            
                
 
  "This is not a bootable disk.  Please insert a bootable floppy and\r\n"
  "press any key to try again ... \r\n"

Definition at line 491 of file mkdosfs.c.

Referenced by main(), and setup_tables().

◆ dummy_boot_jump

char dummy_boot_jump[3] = { 0xeb, 0x3c, 0x90 }

Definition at line 487 of file mkdosfs.c.

Referenced by setup_tables().

◆ dummy_boot_jump_m68k

char dummy_boot_jump_m68k[2] = { 0x60, 0x1c }

Definition at line 489 of file mkdosfs.c.

Referenced by setup_tables().

◆ ext

char ext[3]

Definition at line 0 of file mkdosfs.c.

◆ ext_boot_sign

__u8 ext_boot_sign

Definition at line 2 of file mkdosfs.c.

◆ fat

unsigned char* fat

static

Definition at line 542 of file mkdosfs.c.

Referenced by EndLog(), f_getfree(), FatGetFatEntry(), FormatBufferFat(), get_fat(), mark_FAT_cluster(), setup_tables(), and write_tables().

◆ fat_length

uint16_t fat_length

Definition at line 10 of file mkdosfs.c.

Referenced by read_boot(), setup_tables(), and write_tables().

◆ fats

uint8_t fats

Definition at line 6 of file mkdosfs.c.

◆ fs_type

uint8_t fs_type

Definition at line 5 of file mkdosfs.c.

Referenced by set_fs_defaults().

◆ heads

uint16_t heads

Definition at line 12 of file mkdosfs.c.

◆ hidden

uint32_t hidden

Definition at line 13 of file mkdosfs.c.

Referenced by ewmh_get_window_state(), fsctl_set_xattr(), TOOLBAR_SetRows(), ui_seamless_begin(), and warning().

◆ ignore_full_disk

int ignore_full_disk = 0

static

Definition at line 537 of file mkdosfs.c.

Referenced by main().

◆ info_sector

unsigned char* info_sector

static

Definition at line 543 of file mkdosfs.c.

◆ lcase

__u8 lcase

Definition at line 2 of file mkdosfs.c.

◆ media

uint8_t media

Definition at line 9 of file mkdosfs.c.

Referenced by _test_style_media(), _test_style_put_media(), MsiSourceListEnumMediaDisksW(), MsiSourceListGetInfoW(), MsiSourceListSetInfoW(), patch_add_media(), test_MsiSourceListAddMediaDisk(), test_MsiSourceListEnumMediaDisks(), test_MsiSourceListGetInfo(), test_MsiSourceListSetInfo(), test_publish_product(), and wmain().

◆ name

char name[8]

Definition at line 0 of file mkdosfs.c.

◆ nr_fats

int nr_fats = 2

static

Definition at line 533 of file mkdosfs.c.

Referenced by main(), setup_tables(), and write_tables().

◆ program_name

char* program_name = "mkdosfs"

static

Definition at line 519 of file mkdosfs.c.

Referenced by fatal_error(), main(), susage(), and usage().

◆ RESERVED

__u8 RESERVED

Definition at line 1 of file mkdosfs.c.

◆ reserved

__u16 reserved

Definition at line 5 of file mkdosfs.c.

◆ reserved_sectors

int reserved_sectors = 0

static

Definition at line 531 of file mkdosfs.c.

Referenced by main(), setup_tables(), and write_tables().

◆ root_dir

struct msdos_dir_entry* root_dir

static

Definition at line 544 of file mkdosfs.c.

Referenced by setup_tables(), and write_tables().

◆ root_dir_entries

int root_dir_entries = 0

static

Definition at line 547 of file mkdosfs.c.

Referenced by main(), and setup_tables().

◆ secs_track

uint16_t secs_track

Definition at line 11 of file mkdosfs.c.

◆ sector_size

uint8_t sector_size = 512

Definition at line 3 of file mkdosfs.c.

Referenced by add_chunk(), FormatEx2(), init_device(), is_mounted_multi_device(), main(), mark_FAT_sector(), raid6_recover2(), setup_tables(), Storage_Construct(), StorageImpl_Construct(), test_vol(), write_btrfs(), write_superblocks(), and write_tables().

◆ sector_size_set

int sector_size_set = 0

static

Definition at line 529 of file mkdosfs.c.

Referenced by main(), and setup_tables().

◆ sectors

uint8_t sectors

Definition at line 8 of file mkdosfs.c.

Referenced by check_csum(), do_calc_job(), dump_boot(), IdeVerify(), main(), raid6_recover2(), read_boot(), read_data_dup(), read_data_raid10(), read_data_raid5(), read_data_raid6(), SetupCreateDiskSpaceListW(), and VfdOpenImage().

◆ sectors_per_cluster

int sectors_per_cluster = 0

static

Definition at line 546 of file mkdosfs.c.

Referenced by main(), setup_tables(), test_GetDiskFreeSpaceA(), and test_GetDiskFreeSpaceW().

◆ size

__u32 size

Definition at line 9 of file mkdosfs.c.

◆ size_fat

int size_fat = 0

static

Definition at line 534 of file mkdosfs.c.

Referenced by establish_params(), main(), mark_FAT_cluster(), setup_tables(), and write_tables().

◆ size_fat_by_user

int size_fat_by_user = 0

static

Definition at line 535 of file mkdosfs.c.

Referenced by main(), and setup_tables().

◆ size_root_dir

int size_root_dir

static

Definition at line 545 of file mkdosfs.c.

Referenced by setup_tables(), and write_tables().

◆ start

__u16 start

Definition at line 8 of file mkdosfs.c.

◆ start_data_block

int start_data_block

static

Definition at line 541 of file mkdosfs.c.

Referenced by check_blocks(), and setup_tables().

◆ start_data_sector

int start_data_sector

static

Definition at line 540 of file mkdosfs.c.

Referenced by mark_FAT_sector(), and setup_tables().

◆ starthi

__u16 starthi

Definition at line 7 of file mkdosfs.c.

◆ system_id

uint8_t system_id

Definition at line 1 of file mkdosfs.c.

Referenced by dump_boot(), pvd_write(), XMLStorage::XMLDoc::read_buffer(), XMLStorage::XMLDoc::read_stream(), XMLStorage::XMLMessageFromString::XMLMessageFromString(), and XMLStorage::XMLMessageReader::XMLMessageReader().

◆ time

__CRT_INLINE time_t __cdecl time

Definition at line 8 of file mkdosfs.c.

Referenced by __attribute__(), __get_date_order(), __xmlInitializeDict(), ATL::_ATL_MSG::_ATL_MSG(), _Dispatch_type_(), _Function_class_(), _gmtime32_s(), _gmtime64_s(), _gmtime_worker(), _ILGetFileDate(), _Init_timeinfo(), _Init_timeinfo_base(), _mkgmtime(), _mkgmtime32(), _mktime32(), _strtime(), _strtime_s(), _tctime_s(), _time(), _wstrtime(), add_special_defines(), AtapiQueueTimerDpc(), AtapiTimerDpc(), attr_cache_entry_expired(), attr_cache_update(), AVIStreamSampleToTime(), bind_lease(), CloseTrace(), BtrfsRecv::cmd_utimes(), collect_query_data(), CommandShell(), convert_time(), ConvertTickToDateTime(), create_date(), create_directory_fcb(), create_msft_typelib(), create_snapshot(), create_stream(), create_subvol(), create_systemtime(), CRYPT_CheckSimpleChain(), ATL::CTime::CTime(), ATL::CTimeSpan::CTimeSpan(), d3drm_animation1_AddPositionKey(), d3drm_animation1_AddRotateKey(), d3drm_animation1_AddScaleKey(), d3drm_animation1_DeleteKey(), d3drm_animation1_SetTime(), d3drm_animation2_AddPositionKey(), d3drm_animation2_AddRotateKey(), d3drm_animation2_AddScaleKey(), d3drm_animation2_DeleteKey(), d3drm_animation2_SetTime(), d3drm_animation_get_index_max(), d3drm_animation_get_index_min(), d3drm_animation_get_insert_position(), d3drm_animation_lookup_key(), date_dos2unix(), date_from_time(), Date_getFullYear(), date_now(), date_to_string(), Date_toTimeString(), dateobj_to_date_string(), dateobj_to_string(), day(), day_within_year(), daylight_saving_ta(), DaytimeHandler(), DECLARE_INTERFACE_(), delete_fileref(), delete_reparse_point(), dhcpack(), dhcpoffer(), DirectSoundDevice_Initialize(), dispatch(), do_create_snapshot(), DoOpen(), DoOutput(), duplicate_extents(), empty_message_queue(), entry_invis(), EnumEventsThread(), ExtCabCallback(), Fbt_CreateFiber(), file_create2(), filetime_to_str(), FileTimeToUnixTime(), fill_in_file_basic_information(), fill_in_file_network_open_information(), fill_in_file_stat_information(), fill_in_file_stat_lx_information(), FillBookmarkInfo(), FillBuffer(), flush_events(), ATL::CTimeSpan::Format(), ATL::CTime::Format(), FormatDateTime(), ATL::CTime::FormatGmt(), FTP_SendData(), FTPGetOneF(), FTPOpenHost(), FTPOpenHostNoLogin(), FTPUpdateIOTimer(), FTPUtime(), generate_reloc_directory(), get_fattime(), get_longlong_time(), get_signature(), get_test_year(), get_volume_size_info(), ATL::CTime::GetAsDBTIMESTAMP(), ATL::CTime::GetAsSystemTime(), ATL::CTime::GetCurrentTime(), ATL::CTime::GetDay(), ATL::CTime::GetDayOfWeek(), CFontExt::GetDetailsOf(), ATL::CTime::GetHour(), ATL::CTime::GetMinute(), ATL::CTime::GetMonth(), ATL::CTime::GetSecond(), GetStartSpoolDate(), ATL::CTime::GetYear(), Global_Time(), handle_button_event(), hour_from_time(), idmap_lookup_group(), idmap_lookup_user(), in_leap_year(), init(), init_fs_tree(), InitGL(), InitLsMonths(), initrand(), InternetTimeFromSystemTimeA(), InternetTimeFromSystemTimeA_test(), InternetTimeFromSystemTimeW(), InternetTimeFromSystemTimeW_test(), InternetTimeToSystemTimeA(), InternetTimeToSystemTimeA_test(), InternetTimeToSystemTimeW(), InternetTimeToSystemTimeW_test(), IrotGetTimeOfLastChange(), IrotRegister(), keep_responsive(), load_persistent_cookie(), local_time(), locale::locale(), localtime(), LogErrorConsole(), LogInfoConsole(), logMess(), LogMessage(), LogOpen(), LogWarningConsole(), look_for_roots(), LsCacheAdd(), LsCacheLookup(), LsL(), main(), make_date(), make_day(), master_IReferenceClock_GetTime(), Tokenizer::match(), MediaSeeking_GetCurrentPosition(), MediaSeeking_GetPositions(), MediaSeeking_GetStopPosition(), min_from_time(), MiniDumpWriteDump(), mknod(), mktime(), mktime_worker(), month_from_time(), MONTHCAL_ValidateDate(), MONTHCAL_ValidateTime(), move_across_subvols(), ms_from_time(), msi_create_empty_local_file(), MSVCRT__create_locale(), name_cache_entry_updated(), nfs41_create_session(), nfs41_open(), OnCreate(), open_file3(), OpenTrace(), ATL::CTime::operator!=(), ATL::CTime::operator-(), ATL::CTime::operator<(), ATL::CTime::operator<=(), ATL::CTime::operator=(), ATL::CTime::operator==(), ATL::CTime::operator>(), ATL::CTime::operator>=(), pause_scrub(), PerfDataGetText(), PlaceMines(), pos_from_time(), print_ttl(), PrintElapsedTime(), process_pdu_logon(), ProcessExe(), ProcessLayers(), processPendingMessages(), processRequest(), PROPVAR_ConvertFILETIME(), query_dir_item(), query_scrub(), queue_add_timer(), queue_event(), queue_get_timeout(), queue_move_timer(), rdp_send_input(), rdp_send_logon_info(), rdp_send_scancode(), recover_delegation_open(), recvd_subvol(), refclock_GetTime(), ATL::CRegObject::RegDeleteTreeX(), RegisterSdbEntry(), RendererPosPassThru_EOS(), reset_modifier_keys(), RPC_UuidGetSystemTime(), rpcb_gettime(), SampleGrabber_callback(), save_persistent_cookie(), SClose(), ScmAcquireServiceStartLock(), ScmQueryServiceLockStatusA(), ScmQueryServiceLockStatusW(), sec_from_time(), send_discover(), send_request(), SendRun(), SendTime(), set_basic_information(), set_default_subvol(), set_end_of_file_information(), set_file_security(), set_link_information(), set_rename_information(), set_reparse_point2(), set_symlink(), set_valid_data_length_information(), set_zero_data(), CTooltips::SetDelayTime(), SetInstallationCompleted(), SHFormatDateTimeW(), sleep(), SpoolName(), SRead(), SRecv(), SRecvfrom(), SSend(), SSendto(), SSendtoByName(), START_TEST(), FxWatchdog::StartTimer(), state_bound(), state_init(), state_reboot(), state_selecting(), stream_set_end_of_file_information(), SWaitUntilReadyForReading(), SWaitUntilReadyForWriting(), swapchain_gdi_present(), swapchain_gl_present(), SWrite(), SynthPortImpl_IDirectMusicPort_PlayBuffer(), SystemFunction036(), TaskTriggerConstructor(), test__hwrite(), test__lwrite(), Test_asctime(), Test_ctime(), test_dbcs_wm_char(), test_FileTimeToLocalFileTime(), test_FileTimeToSystemTime(), test_localtime32_s(), test_localtime64_s(), test_pack_EVENTMSG(), test_pack_KBDLLHOOKSTRUCT(), test_pack_KEYBDINPUT(), test_pack_MOUSEINPUT(), test_pack_MSG(), test_pack_MSLLHOOKSTRUCT(), test_PdhCollectQueryDataWithTime(), test_RealizationInfo(), test_SetTrigger_GetTrigger(), test_strtime(), test_verifyRevocation(), test_WinHttpTimeFromSystemTime(), test_WinHttpTimeToSystemTime(), test_wm_set_get_text(), test_wstrtime(), TestThreadProc(), testTimeDecoding(), testTimeEncoding(), time_clip(), time_within_day(), Database::toSdb(), Trace(), TruncBatchLog(), UDFEjectReqWaiter(), UefiGetTime(), UnDate(), uninit(), UnLslR(), UnMDTMDate(), UNUSED(), upcall_parse(), update_chunk_caches(), urlcache_delete_file(), urlcache_hash_entry_is_locked(), urlcache_rate_entry(), utc(), UuidCreateSequential(), VarBstrFromDate(), verify_cert_revocation_from_dist_points_ext(), vncKey(), vncMouse(), wait_move_event(), week_day(), WinHttpTimeFromSystemTime(), WinHttpTimeToSystemTime(), WINTRUST_GetTimeFromCounterSigner(), WINTRUST_GetTimeFromSigner(), WMReaderAdvanced_DeliverTime(), WMWriterAdvanced2_GetInputSetting(), write_btrfs(), write_one_file(), write_volume_label(), WriteDefaultFirewallPrefs(), xmlMemDisplay(), xwin_process_events(), and year_from_time().

◆ total_sect

uint32_t total_sect

Definition at line 14 of file mkdosfs.c.

◆ verbose

int verbose = 0

static

Definition at line 523 of file mkdosfs.c.

Referenced by check_blocks(), main(), and setup_tables().

◆ vi

struct msdos_volume_info vi

Definition at line 440 of file mkdosfs.c.

Referenced by getline(), setup_tables(), and START_TEST().

◆ volume_id

static long volume_id

Definition at line 3 of file mkdosfs.c.

Referenced by main(), pvd_write(), and setup_tables().

◆ volume_label

__u8 volume_label[11]

Definition at line 4 of file mkdosfs.c.

Referenced by msi_package_add_media_disk().

◆ volume_name

char volume_name[] = " "

static

Definition at line 526 of file mkdosfs.c.

Referenced by main(), setup_tables(), and source_matches_volume().

Classes

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

◆ ATTR_ARCH

◆ ATTR_DIR

◆ ATTR_HIDDEN

◆ ATTR_NONE

◆ ATTR_RO

◆ ATTR_SYS

◆ ATTR_UNUSED

◆ ATTR_VOLUME

◆ BOOT_SIGN

◆ BOOTCODE_FAT32_SIZE

◆ BOOTCODE_SIZE

◆ CF_LE_L

◆ CF_LE_W

◆ CT_LE_L

◆ CT_LE_W

◆ die

◆ error

◆ FALSE

◆ FAT12_THRESHOLD

◆ fat32

◆ FAT_BAD

◆ FAT_EOF

◆ GEMDOS_MAX_SECTOR_SIZE

◆ GEMDOS_MAX_SECTORS

◆ HARD_SECTOR_SIZE

◆ mark_sector_bad

◆ MAX_CLUST_12

◆ MAX_CLUST_16

◆ MAX_CLUST_32

◆ MESSAGE_OFFSET

◆ MSDOS_EXT_SIGN

◆ MSDOS_FAT12_SIGN

◆ MSDOS_FAT16_SIGN

◆ MSDOS_FAT32_SIGN

◆ O_BACKUP

◆ O_NOINHERIT

◆ O_NONE

◆ O_RANDOM

◆ O_SEQUENTIAL

◆ O_SHARED

◆ O_SHORT_LIVED

◆ O_TEMPORARY

◆ oldfat

◆ OLDGEMDOS_MAX_SECTORS

◆ SECTORS_PER_BLOCK

◆ seekto

◆ TEST_BUFFER_BLOCKS

◆ TRUE

◆ writebuf

Typedef Documentation

◆ ll_t

Function Documentation

◆ __attribute__()

◆ _syscall5()

◆ alarm_intr()

◆ cdiv()

◆ check_atari()

◆ check_blocks()

◆ check_mount()

◆ count_blocks()

◆ do_check()

◆ establish_params()

◆ fatal_error()

◆ get_list_blocks()

◆ llseek()

◆ main()

◆ mark_FAT_cluster()

◆ mark_FAT_sector()

◆ setup_tables()

◆ usage()

◆ valid_offset()

◆ write_tables()

Variable Documentation

◆ __attribute__

◆ attribute()

◆ attribute