swapfs.c File Reference

#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include <stdio.h>
#include <assert.h>

Include dependency graph for swapfs.c:

Go to the source code of this file.

Data Structures
struct	super_t
struct	inode_t
Defines
#define	_POSIX_SOURCE   1
#define	_PROTOTYPE(function, params)   function()
#define	BLOCK_SIZE   1024
#define	BOOT_BLOCK_OFF   (blockn_t) 0
#define	SUPER_BLOCK_OFF   (blockn_t) 1
#define	V1_MAGIC   0x137F
#define	V2_MAGIC   0x2468
#define	NINODES_OFFSET   0
#define	V1_ZONES_OFFSET   2
#define	IMAP_BLOCKS_OFFSET   4
#define	ZMAP_BLOCKS_OFFSET   6
#define	FIRSTDATAZONE_OFFSET   8
#define	LOG_ZONE_SIZE_OFFSET   10
#define	MAGIC_OFFSET   16
#define	V2_ZONES_OFFSET   20
#define	NR_DIRECT_ZONES   7
#define	V1_NR_TZONES   9
#define	V2_NR_TZONES   10
#define	V1_INODE_SIZE   32
#define	V2_INODE_SIZE   64
#define	INODE1_MODE_OFF   0
#define	INODE1_SIZE_OFF   4
#define	INODE1_DIRECT_OFF   14
#define	INODE1_IND1_OFF   28
#define	INODE1_IND2_OFF   30
#define	INODE2_MODE_OFF   0
#define	INODE2_SIZE_OFF   8
#define	INODE2_DIRECT_OFF   24
#define	INODE2_IND1_OFF   52
#define	INODE2_IND2_OFF   56
#define	INODE2_IND3_OFF   60
#define	INODE_MODE_MASK   0xf000
#define	INODE_DIR_MODE   0x4000
#define	INODE_BLK_SPECIAL_MODE   0x6000
#define	INODE_CHR_SPECIAL_MODE   0x2000
#define	T_MASK   0x1c
#define	T_UNKNOWN   0x00
#define	T_MAYBE_OLD_DIR   0x04
#define	T_OLD_NON_DIR   0x08
#define	T_DIR   0x0c
#define	T_NON_DIR   0x10
#define	INDIRECT_MASK   0x03
#define	IND_PROCESSED_BIT   0x20
#define	IND_CONFLICT_BIT   0x40
#define	TYPE_CONFLICT_BIT   0x80
#define	DIR_ENTRY_SIZE   16
Typedefs
typedef unsigned long	blockn_t
typedef unsigned int	inodesn_t
typedef unsigned char *	dzmap_t
Enumerations
enum	class_t { Unused_zone, Old_zone, In_use_zone }
Functions
int	_PROTOTYPE (main,(int argc, char *argv[]))
static void	_PROTOTYPE (parse_args_init_io,(int argc, char *argv[]))
static void	_PROTOTYPE (rw_boot,(void))
static void	_PROTOTYPE (rw_init_super,(super_t *sp))
static void	_PROTOTYPE (init_dzmap,(dzmap_t *dzmap_ptr, size_t dzmap_size))
static void	_PROTOTYPE (rw_ibmap,(super_t super))
static void	_PROTOTYPE (rw_zbmap,(super_t super))
static void	_PROTOTYPE (print_stat,(dzmap_t dzmap, super_t super))
static void	_PROTOTYPE (p1_rw_inodes,(dzmap_t dzmap, super_t super))
static void	_PROTOTYPE (rd_indirects,(dzmap_t dzmap, super_t super, int ind, class_t required_class))
static void	_PROTOTYPE (rw_data_zones,(dzmap_t dzmap, super_t super))
static int	_PROTOTYPE (read_block,(char *buf, blockn_t offset))
static void	_PROTOTYPE (write_block,(char *buf))
static int	_PROTOTYPE (convcpy,(char *dst, char *src, int *format))
static void	_PROTOTYPE (conv2_blkcpy,(char *dst, char *src))
static void	_PROTOTYPE (conv4_blkcpy,(char *dst, char *src))
static void	_PROTOTYPE (conv2cpy,(char *dst, char *src))
static int	_PROTOTYPE (inode_size,(int version))
static void	_PROTOTYPE (init_super,(super_t *sp, char *buf))
static void	_PROTOTYPE (get_inode,(inode_t *ip, char *buf, int version))
static int	_PROTOTYPE (check_inode,(inode_t inode, super_t super))
static int	_PROTOTYPE (was_blk_special,(inode_t inode))
static int	_PROTOTYPE (check_blk_number,(blockn_t num, super_t super))
static void	_PROTOTYPE (cw_inode_block,(char *buf, inodesn_t ninodes, int version))
static void	_PROTOTYPE (proc_ind,(dzmap_t dzmap, size_t curr_ind, char *buf, super_t super))
static void	_PROTOTYPE (cw_dir_block,(char *buf))
static void	_PROTOTYPE (dzmap_add_inode,(dzmap_t dzmap, inode_t inode, super_t super))
static void	_PROTOTYPE (dz_update,(dzmap_t dzmap, blockn_t blknum, int new_indnum, int new_ztype, super_t super))
static class_t	_PROTOTYPE (ztype_class,(int ztype))
static unsigned int	_PROTOTYPE (two_bytes,(char buf[2]))
static long	_PROTOTYPE (four_bytes,(char buf[4]))
static void	_PROTOTYPE (fail,(char *string))
static void	_PROTOTYPE (usage,(char *arg0))
int	main (int argc, argv)
static void	parse_args_init_io (int argc, argv)
static void	rw_boot ()
static void	rw_init_super (super_t *sp)
static void	init_dzmap (dzmap_t *dzmap_ptr, size_t dzmap_size)
static void	rw_ibmap (super_t super)
static void	rw_zbmap (super_t super)
static void	p1_rw_inodes (dzmap_t dzmap, super_t super)
static void	print_stat (dzmap_t dzmap, super_t super)
static void	rd_indirects (dzmap_t dzmap, super_t super, int ind, class_t required_class)
static void	rw_data_zones (dzmap_t dzmap, super_t super)
static int	read_block (char *buf, blockn_t offset)
static void	write_block (char *buf)
static int	convcpy (char *dst, char *src, int *format)
static void	conv2_blkcpy (char *dst, char *src)
static void	conv4_blkcpy (char *dst, char *src)
static void	conv2cpy (char *dst, char *src)
static int	inode_size (int version)
static void	init_super (super_t *sp, char *buf)
static void	get_inode (inode_t *ip, char *buf, int version)
static int	check_inode (inode_t inode, super_t super)
static int	check_blk_number (blockn_t num, super_t super)
static int	was_blk_special (inode_t inode)
static void	cw_inode_block (char *buf, inodesn_t ninodes, int version)
static void	proc_ind (dzmap_t dzmap, size_t curr_ind, char *buf, super_t super)
static void	cw_dir_block (char *buf)
static void	dzmap_add_inode (dzmap_t dzmap, inode_t inode, super_t super)
static void	dz_update (dzmap_t dzmap, blockn_t blknum, int new_indnum, int new_ztype, super_t super)
static class_t	ztype_class (int ztype)
static void	fail (char *str)
static unsigned int	two_bytes (buf)
static long	four_bytes (buf)
static void	usage (char *arg0)
Variables
static char	rcsid [] = "$Id: swapfs.c,v 1.1.1.1 2005/04/21 14:55:33 beng Exp $"
static int	super_format [] = {2, 2, 2, 2, 2, 2, 4, 2, 2, 4, 0}
static int	inode1_format [] = {2, 2, 4, 4, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0}
static int	inode2_format []
static char *	ind_str [4]
static int	big_endian_fs
static int	verbose_flag
static int	debug_flag
static int	test_flag

---

Define Documentation

#define _POSIX_SOURCE   1

Definition at line 38 of file swapfs.c.

#define _PROTOTYPE (  function, params   )     function()

Definition at line 53 of file swapfs.c.

#define BLOCK_SIZE   1024

Definition at line 56 of file swapfs.c.

#define BOOT_BLOCK_OFF   (blockn_t) 0

Definition at line 58 of file swapfs.c. Referenced by rw_boot().

#define DIR_ENTRY_SIZE   16

Definition at line 111 of file swapfs.c. Referenced by chkdirzone(), chkdots(), cw_dir_block(), get_inode(), r_readdir(), and search_dir().

#define FIRSTDATAZONE_OFFSET   8

Definition at line 67 of file swapfs.c. Referenced by init_super().

#define IMAP_BLOCKS_OFFSET   4

Definition at line 65 of file swapfs.c. Referenced by init_super().

#define IND_CONFLICT_BIT   0x40

Definition at line 108 of file swapfs.c. Referenced by dz_update(), and print_stat().

#define IND_PROCESSED_BIT   0x20

Definition at line 106 of file swapfs.c. Referenced by rd_indirects().

#define INDIRECT_MASK   0x03

Definition at line 104 of file swapfs.c. Referenced by dz_update(), proc_ind(), rd_indirects(), and rw_data_zones().

#define INODE1_DIRECT_OFF   14

Definition at line 81 of file swapfs.c. Referenced by get_inode().

#define INODE1_IND1_OFF   28

Definition at line 82 of file swapfs.c. Referenced by get_inode().

#define INODE1_IND2_OFF   30

Definition at line 83 of file swapfs.c. Referenced by get_inode().

#define INODE1_MODE_OFF   0

Definition at line 79 of file swapfs.c. Referenced by get_inode().

#define INODE1_SIZE_OFF   4

Definition at line 80 of file swapfs.c. Referenced by get_inode().

#define INODE2_DIRECT_OFF   24

Definition at line 87 of file swapfs.c. Referenced by get_inode().

#define INODE2_IND1_OFF   52

Definition at line 88 of file swapfs.c. Referenced by get_inode().

#define INODE2_IND2_OFF   56

Definition at line 89 of file swapfs.c. Referenced by get_inode().

#define INODE2_IND3_OFF   60

Definition at line 90 of file swapfs.c. Referenced by get_inode().

#define INODE2_MODE_OFF   0

Definition at line 85 of file swapfs.c. Referenced by get_inode().

#define INODE2_SIZE_OFF   8

Definition at line 86 of file swapfs.c. Referenced by get_inode().

#define INODE_BLK_SPECIAL_MODE   0x6000

Definition at line 94 of file swapfs.c.

#define INODE_CHR_SPECIAL_MODE   0x2000

Definition at line 95 of file swapfs.c.

#define INODE_DIR_MODE   0x4000

Definition at line 93 of file swapfs.c.

#define INODE_MODE_MASK   0xf000

Definition at line 92 of file swapfs.c.

#define LOG_ZONE_SIZE_OFFSET   10

Definition at line 68 of file swapfs.c. Referenced by init_super().

#define MAGIC_OFFSET   16

Definition at line 69 of file swapfs.c. Referenced by init_super().

#define NINODES_OFFSET   0

Definition at line 63 of file swapfs.c. Referenced by init_super().

#define NR_DIRECT_ZONES   7

Definition at line 73 of file swapfs.c. Referenced by check_inode(), dzmap_add_inode(), get_inode(), and was_blk_special().

#define SUPER_BLOCK_OFF   (blockn_t) 1

Definition at line 59 of file swapfs.c. Referenced by init_super(), and rw_init_super().

#define T_DIR   0x0c

Definition at line 101 of file swapfs.c. Referenced by rw_data_zones(), and ztype_class().

#define T_MASK   0x1c

Definition at line 97 of file swapfs.c. Referenced by print_stat(), proc_ind(), rd_indirects(), and rw_data_zones().

#define T_MAYBE_OLD_DIR   0x04

Definition at line 99 of file swapfs.c. Referenced by dz_update(), get_inode(), and ztype_class().

#define T_NON_DIR   0x10

Definition at line 102 of file swapfs.c. Referenced by ztype_class().

#define T_OLD_NON_DIR   0x08

Definition at line 100 of file swapfs.c. Referenced by get_inode(), and ztype_class().

#define T_UNKNOWN   0x00

Definition at line 98 of file swapfs.c.

#define TYPE_CONFLICT_BIT   0x80

Definition at line 109 of file swapfs.c. Referenced by dz_update(), and print_stat().

#define V1_INODE_SIZE   32

Definition at line 76 of file swapfs.c. Referenced by fs_init(), inode_size(), main(), read_super(), and Read_Super_Block().

#define V1_MAGIC   0x137F

Definition at line 61 of file swapfs.c. Referenced by init_super().

#define V1_NR_TZONES   9

Definition at line 74 of file swapfs.c. Referenced by get_inode(), old_icopy(), and r_stat().

#define V1_ZONES_OFFSET   2

Definition at line 64 of file swapfs.c. Referenced by init_super().

#define V2_INODE_SIZE   64

Definition at line 77 of file swapfs.c. Referenced by fs_init(), inode_size(), main(), read_super(), Read_Super_Block(), and Recover_Blocks().

#define V2_MAGIC   0x2468

Definition at line 62 of file swapfs.c. Referenced by init_super().

#define V2_NR_TZONES   10

Definition at line 75 of file swapfs.c. Referenced by get_inode(), new_icopy(), r_stat(), and wipe_inode().

#define V2_ZONES_OFFSET   20

Definition at line 70 of file swapfs.c. Referenced by init_super().

#define ZMAP_BLOCKS_OFFSET   6

Definition at line 66 of file swapfs.c. Referenced by init_super().

---

Typedef Documentation

typedef unsigned long blockn_t

Definition at line 117 of file swapfs.c.

typedef unsigned char* dzmap_t

Definition at line 163 of file swapfs.c.

typedef unsigned int inodesn_t

Definition at line 118 of file swapfs.c.

---

Enumeration Type Documentation

enum class_t

Enumerator: Unused_zone  Old_zone  In_use_zone  Definition at line 113 of file swapfs.c.

---

Function Documentation

static void _PROTOTYPE (  usage  , (char *arg0)  )  [static]

static void _PROTOTYPE (  fail  , (char *string)  )  [static]

static long _PROTOTYPE (  four_bytes  , (char buf[4])  )  [static]

static unsigned int _PROTOTYPE (  two_bytes  , (char buf[2])  )  [static]

static class_t _PROTOTYPE (  ztype_class  , (int ztype)  )  [static]

static void _PROTOTYPE (  dz_update  , (dzmap_t dzmap, blockn_t blknum, int new_indnum, int new_ztype, super_t super)  )  [static]

static void _PROTOTYPE (  dzmap_add_inode  , (dzmap_t dzmap, inode_t inode, super_t super)  )  [static]

static void _PROTOTYPE (  cw_dir_block  , (char *buf)  )  [static]

static void _PROTOTYPE (  proc_ind  , (dzmap_t dzmap, size_t curr_ind, char *buf, super_t super)  )  [static]

static void _PROTOTYPE (  cw_inode_block  , (char *buf, inodesn_t ninodes, int version)  )  [static]

static int _PROTOTYPE (  check_blk_number  , (blockn_t num, super_t super)  )  [static]

static int _PROTOTYPE (  was_blk_special  , (inode_t inode)  )  [static]

static int _PROTOTYPE (  check_inode  , (inode_t inode, super_t super)  )  [static]

static void _PROTOTYPE (  get_inode  , (inode_t *ip, char *buf, int version)  )  [static]

static void _PROTOTYPE (  init_super  , (super_t *sp, char *buf)  )  [static]

static int _PROTOTYPE (  inode_size  , (int version)  )  [static]

static void _PROTOTYPE (  conv2cpy  , (char *dst, char *src)  )  [static]

static void _PROTOTYPE (  conv4_blkcpy  , (char *dst, char *src)  )  [static]

static void _PROTOTYPE (  conv2_blkcpy  , (char *dst, char *src)  )  [static]

static int _PROTOTYPE (  convcpy  , (char *dst, char *src, int *format)  )  [static]

static void _PROTOTYPE (  write_block  , (char *buf)  )  [static]

static int _PROTOTYPE (  read_block  , (char *buf, blockn_t offset)  )  [static]

static void _PROTOTYPE (  rw_data_zones  , (dzmap_t dzmap, super_t super)  )  [static]

static void _PROTOTYPE (  rd_indirects  , (dzmap_t dzmap, super_t super, int ind, class_t required_class)  )  [static]

static void _PROTOTYPE (  p1_rw_inodes  , (dzmap_t dzmap, super_t super)  )  [static]

static void _PROTOTYPE (  print_stat  , (dzmap_t dzmap, super_t super)  )  [static]

static void _PROTOTYPE (  rw_zbmap  , (super_t super)  )  [static]

static void _PROTOTYPE (  rw_ibmap  , (super_t super)  )  [static]

static void _PROTOTYPE (  init_dzmap  , (dzmap_t *dzmap_ptr, size_t dzmap_size)  )  [static]

static void _PROTOTYPE (  rw_init_super  , (super_t *sp)  )  [static]

static void _PROTOTYPE (  rw_boot  , (void)  )  [static]

static void _PROTOTYPE (  parse_args_init_io  , (int argc, char *argv[])  )  [static]

int _PROTOTYPE (  main  , (int argc, char *argv[])  )

static int check_blk_number (  blockn_t  num, super_t  super )  [static]

Definition at line 736 of file swapfs.c. References fprintf(), stderr, and super. Referenced by check_inode().

static int check_inode (  inode_t  inode, super_t  super )  [static]

Definition at line 721 of file swapfs.c. References check_blk_number(), i, NR_DIRECT_ZONES, and super. Referenced by dzmap_add_inode().

static void conv2_blkcpy (  char *  dst, char *  src )  [static]

Definition at line 567 of file swapfs.c. References BLOCK_SIZE, i, and tmp. Referenced by rw_ibmap(), and rw_zbmap().

static void conv2cpy (  char *  dst, char *  src )  [static]

Definition at line 604 of file swapfs.c. References tmp. Referenced by cw_dir_block().

static void conv4_blkcpy (  char *  dst, char *  src )  [static]

Definition at line 582 of file swapfs.c. References BLOCK_SIZE, i, and tmp.

static int convcpy (  char *  dst, char *  src, int *  format )  [static]

Definition at line 532 of file swapfs.c. References fail, i, and tmp. Referenced by cw_inode_block(), and rw_init_super().

static void cw_dir_block (  char *  buf  )  [static]

Definition at line 892 of file swapfs.c. References conv2cpy(), DIR_ENTRY_SIZE, i, memcpy(), and two_bytes(). Referenced by rw_data_zones().

static void cw_inode_block (  char *  buf, inodesn_t  ninodes, int  version )  [static]

Definition at line 769 of file swapfs.c. References BLOCK_SIZE, cnt, convcpy(), format, i, inode1_format, and inode2_format. Referenced by p1_rw_inodes().

static void dz_update (  dzmap_t  dzmap, blockn_t  blknum, int  new_indnum, int  new_ztype, super_t  super )  [static]

Definition at line 930 of file swapfs.c. References assert, fail, fprintf(), In_use_zone, IND_CONFLICT_BIT, INDIRECT_MASK, Old_zone, stderr, super, T_MAYBE_OLD_DIR, TYPE_CONFLICT_BIT, and ztype_class(). Referenced by dzmap_add_inode().

static void dzmap_add_inode (  dzmap_t  dzmap, inode_t  inode, super_t  super )  [static]

Definition at line 912 of file swapfs.c. References check_inode(), inode_t::direct, dz_update(), i, inode_t::ind1, inode_t::ind2, inode_t::ind3, NR_DIRECT_ZONES, inode_t::size, super, and inode_t::ztype.

static void fail (  char *  str  )  [static]

Definition at line 1006 of file swapfs.c. References exit(), fprintf(), and stderr.

static long four_bytes (  buf   )  [static]

Definition at line 1026 of file swapfs.c. References big_endian_fs. Referenced by get_inode(), init_super(), and proc_ind().

static void get_inode (  inode_t *  ip, char *  buf, int  version )  [static]

Definition at line 680 of file swapfs.c. References DIR_ENTRY_SIZE, four_bytes(), i, if(), INODE1_DIRECT_OFF, INODE1_IND1_OFF, INODE1_IND2_OFF, INODE1_MODE_OFF, INODE1_SIZE_OFF, INODE2_DIRECT_OFF, INODE2_IND1_OFF, INODE2_IND2_OFF, INODE2_IND3_OFF, INODE2_MODE_OFF, INODE2_SIZE_OFF, NR_DIRECT_ZONES, T_MAYBE_OLD_DIR, T_OLD_NON_DIR, two_bytes(), and was_blk_special().

static void init_dzmap (  dzmap_t *  dzmap_ptr, size_t  dzmap_size )  [static]

Definition at line 321 of file swapfs.c. References fail, malloc(), memset(), and NULL. Referenced by main().

static void init_super (  super_t *  sp, char *  buf )  [static]

Definition at line 622 of file swapfs.c. References big_endian_fs, BLOCK_SIZE, fail, FIRSTDATAZONE_OFFSET, four_bytes(), fprintf(), IMAP_BLOCKS_OFFSET, inode_size, LOG_ZONE_SIZE_OFFSET, magic, MAGIC_OFFSET, NINODES_OFFSET, stderr, SUPER_BLOCK_OFF, two_bytes(), V1_MAGIC, V1_ZONES_OFFSET, V2_MAGIC, V2_ZONES_OFFSET, verbose_flag, and ZMAP_BLOCKS_OFFSET. Referenced by rw_init_super().

static int inode_size (  int  version  )  [static]

Definition at line 615 of file swapfs.c. References V1_INODE_SIZE, and V2_INODE_SIZE.

int main (  int  argc, argv  )

Definition at line 210 of file swapfs.c. References In_use_zone, init_dzmap(), p1_rw_inodes(), parse_args_init_io(), print_stat(), putc, rd_indirects(), rw_boot(), rw_data_zones(), rw_ibmap(), rw_init_super(), rw_zbmap(), stderr, super, and verbose_flag.

static void p1_rw_inodes (  dzmap_t  dzmap, super_t  super )  [static]

Definition at line 361 of file swapfs.c. References BLOCK_SIZE, buf_ptr, cw_inode_block(), fail, i, if(), read_block(), and super. Referenced by main().

static void parse_args_init_io (  int  argc, argv  )  [static]

Definition at line 236 of file swapfs.c. References buf, debug_flag, i, test_flag, usage, and verbose_flag. Referenced by main().

static void print_stat (  dzmap_t  dzmap, super_t  super )  [static]

Definition at line 391 of file swapfs.c. References i, In_use_zone, IND_CONFLICT_BIT, super, T_MASK, TYPE_CONFLICT_BIT, verbose_flag, and ztype_class(). Referenced by main().

static void proc_ind (  dzmap_t  dzmap, size_t  curr_ind, char *  buf, super_t  super )  [static]

Definition at line 806 of file swapfs.c. References assert, blk, BLOCK_SIZE, expired(), four_bytes(), i, In_use_zone, INDIRECT_MASK, super, T_MASK, two_bytes(), ztype, and ztype_class().

static void rd_indirects (  dzmap_t  dzmap, super_t  super, int  ind, class_t  required_class )  [static]

Definition at line 429 of file swapfs.c. References BLOCK_SIZE, fail, fprintf(), i, IND_PROCESSED_BIT, ind_str, INDIRECT_MASK, read_block(), stderr, super, T_MASK, and ztype_class(). Referenced by main().

static int read_block (  char *  buf, blockn_t  offset )  [static]

Definition at line 501 of file swapfs.c. References BLOCK_SIZE, bytes, fail, lseek, and read. Referenced by p1_rw_inodes(), rd_indirects(), rw_boot(), rw_data_zones(), rw_ibmap(), rw_init_super(), and rw_zbmap().

static void rw_boot (   )  [static]

Definition at line 294 of file swapfs.c. References BLOCK_SIZE, BOOT_BLOCK_OFF, fail, read_block(), and write_block(). Referenced by main().

static void rw_data_zones (  dzmap_t  dzmap, super_t  super )  [static]

Definition at line 460 of file swapfs.c. References BLOCK_SIZE, cw_dir_block(), i, ibuf, INDIRECT_MASK, obuf, read_block(), super, T_DIR, T_MASK, write_block(), and ztype. Referenced by main().

static void rw_ibmap (  super_t  super  )  [static]

Definition at line 331 of file swapfs.c. References BLOCK_SIZE, conv2_blkcpy(), fail, ibuf, obuf, read_block(), and write_block(). Referenced by main().

static void rw_init_super (  super_t *  sp  )  [static]

Definition at line 304 of file swapfs.c. References BLOCK_SIZE, convcpy(), fail, ibuf, init_super(), memcpy(), obuf, read_block(), SUPER_BLOCK_OFF, super_format, and write_block(). Referenced by main().

static void rw_zbmap (  super_t  super  )  [static]

Definition at line 346 of file swapfs.c. References BLOCK_SIZE, conv2_blkcpy(), fail, ibuf, obuf, read_block(), and write_block(). Referenced by main().

static unsigned int two_bytes (  buf   )  [static]

Definition at line 1014 of file swapfs.c. References big_endian_fs. Referenced by cw_dir_block(), dp_pio16_nic2user(), dp_pio16_user2nic(), get_inode(), init_super(), and proc_ind().

static void usage (  char *  arg0  )  [static]

Definition at line 1043 of file swapfs.c. References exit(), fprintf(), and stderr.

static int was_blk_special (  inode_t  inode  )  [static]

Definition at line 748 of file swapfs.c. References BLOCK_SIZE, block_size, debug_flag, fprintf(), i, if(), NR_DIRECT_ZONES, result, and stderr. Referenced by get_inode().

static void write_block (  char *  buf  )  [static]

Definition at line 522 of file swapfs.c. References BLOCK_SIZE, fail, test_flag, and write. Referenced by rw_boot(), rw_data_zones(), rw_ibmap(), rw_init_super(), and rw_zbmap().

static class_t ztype_class (  int  ztype  )  [static]

Definition at line 990 of file swapfs.c. References In_use_zone, Old_zone, T_DIR, T_MAYBE_OLD_DIR, T_NON_DIR, T_OLD_NON_DIR, and Unused_zone. Referenced by dz_update(), print_stat(), proc_ind(), and rd_indirects().

---

Variable Documentation

int big_endian_fs [static]

Definition at line 157 of file swapfs.c. Referenced by four_bytes(), init_super(), and two_bytes().

int debug_flag [static]

Definition at line 160 of file swapfs.c. Referenced by parse_args_init_io(), and was_blk_special().

char* ind_str[4] [static]

Initial value: {"direct", "single indirect", "double indirect", "triple indirect"} Definition at line 154 of file swapfs.c. Referenced by rd_indirects().

int inode1_format[] = {2, 2, 4, 4, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0} [static]

Definition at line 150 of file swapfs.c. Referenced by cw_inode_block().

int inode2_format[] [static]

Initial value: {2, 2, 2, 2, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0} Definition at line 151 of file swapfs.c. Referenced by cw_inode_block().

char rcsid[] = "$Id: swapfs.c,v 1.1.1.1 2005/04/21 14:55:33 beng Exp $" [static]

Definition at line 147 of file swapfs.c.

int super_format[] = {2, 2, 2, 2, 2, 2, 4, 2, 2, 4, 0} [static]

Definition at line 149 of file swapfs.c. Referenced by rw_init_super().

int test_flag [static]

Definition at line 161 of file swapfs.c. Referenced by parse_args_init_io(), and write_block().

int verbose_flag [static]

Definition at line 159 of file swapfs.c. Referenced by add_file(), copy(), extract(), init_super(), main(), parse_args_init_io(), print_stat(), tarfile(), and verb_print().

---