readfs.c File Reference

#include <sys/types.h>
#include <sys/dir.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <limits.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <utime.h>
#include <dirent.h>
#include <minix/config.h>
#include <minix/const.h>
#include <minix/type.h>
#include "../../servers/fs/const.h"
#include "../../servers/fs/type.h"
#include "../../servers/fs/buf.h"
#include "../../servers/fs/super.h"
#include <stdio.h>

Include dependency graph for readfs.c:

Go to the source code of this file.

Data Structures
struct	cache_block
Defines
#define	BLOCK_SIZE   _STATIC_BLOCK_SIZE
#define	zone_shift   (sb.s_log_zone_size)
#define	B_INODE   0
#define	B_INDIRECT   1
#define	B_DATA   2
#define	NR_CACHES   2
#define	NR_CBLOCKS   5
#define	INDENT_SIZE   4
Functions
	_PROTOTYPE (int main,(int argc, char **argv))
	_PROTOTYPE (void get_flags,(char *flags))
	_PROTOTYPE (void readfs,(char *special_file, char *directory))
	_PROTOTYPE (int get_inode,(int fd, Ino_t inum, d1_inode *ip))
	_PROTOTYPE (void dump_dir,(int special, d1_inode *ip, char *directory))
	_PROTOTYPE (int dump_file,(int special, d1_inode *ip, char *filename))
	_PROTOTYPE (int get_fileblock,(int special, d1_inode *ip, block_t b, struct buf *bp))
	_PROTOTYPE (int get_block,(int fd, block_t block, struct buf *bp, int type))
	_PROTOTYPE (int get_rawblock,(int special, block_t blockno, char *bufp))
	_PROTOTYPE (void restore,(char *name, d1_inode *ip))
	_PROTOTYPE (void show_info,(char *name, d1_inode *ip, char *path))
	_PROTOTYPE (void do_indent,(int i))
	_PROTOTYPE (int Mkdir,(char *directory))
int	main (int argc, char **argv)
void	get_flags (char *flags)
void	readfs (char *special_file, char *directory)
int	get_inode (int fd, ino_t inum, d1_inode *ip)
void	dump_dir (int special, d1_inode *ip, char *directory)
int	dump_file (int special, d1_inode *ip, char *filename)
int	get_fileblock (int special, d1_inode *ip, block_t b, struct buf *bp)
int	get_block (int fd, block_t block, struct buf *bp, int type)
int	get_rawblock (int special, block_t blockno, char *bufp)
void	restore (char *name, d1_inode *ip)
void	show_info (char *name, d1_inode *ip, char *path)
void	do_indent (int i)
int	Mkdir (char *directory)
Variables
char	verbose = 0
char	noaction = 0
char	nofiles = 0
super_block	sb
char	pathname [1024]
int	inodes_per_block
static int	indent = 0
static struct cache_block	cache [NR_CACHES][NR_CBLOCKS]
static long	counter = 0L
static char	special_chars []

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Define Documentation

#define B_DATA   2

Definition at line 201 of file readfs.c. Referenced by get_fileblock().

#define B_INDIRECT   1

Definition at line 200 of file readfs.c. Referenced by get_fileblock().

#define B_INODE   0

Definition at line 199 of file readfs.c. Referenced by get_inode().

#define BLOCK_SIZE   _STATIC_BLOCK_SIZE

Definition at line 39 of file readfs.c.

#define INDENT_SIZE   4

Definition at line 575 of file readfs.c. Referenced by do_indent().

#define NR_CACHES   2

Definition at line 434 of file readfs.c. Referenced by get_block().

#define NR_CBLOCKS   5

Definition at line 435 of file readfs.c. Referenced by get_block().

#define zone_shift   (sb.s_log_zone_size)

Definition at line 137 of file readfs.c.

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Function Documentation

_PROTOTYPE (  int  Mkdir, (char *directory)  )

_PROTOTYPE (  void  do_indent, (int i)  )

_PROTOTYPE (  void  show_info, (char *name, d1_inode *ip, char *path)  )

_PROTOTYPE (  void  restore, (char *name, d1_inode *ip)  )

_PROTOTYPE (  int  get_rawblock, (int special, block_t blockno, char *bufp)  )

_PROTOTYPE (  int  get_block, (int fd, block_t block, struct buf *bp, int type)  )

_PROTOTYPE (  int  get_fileblock, (int special, d1_inode *ip, block_t b, struct buf *bp)  )

_PROTOTYPE (  int  dump_file, (int special, d1_inode *ip, char *filename)  )

_PROTOTYPE (  void  dump_dir, (int special, d1_inode *ip, char *directory)  )

_PROTOTYPE (  int  get_inode, (int fd, Ino_t inum, d1_inode *ip)  )

_PROTOTYPE (  void  readfs, (char *special_file, char *directory)  )

_PROTOTYPE (  void  get_flags, (char *flags)  )

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

void do_indent (  int  i  )

Definition at line 577 of file readfs.c. References INDENT_SIZE, and putchar. Referenced by show_info().

void dump_dir (  int  special, d1_inode *  ip, char *  directory )

Definition at line 236 of file readfs.c. References b, bp, chdir, directory(), fprintf(), get_fileblock(), int(), buf::ip, Mkdir, noaction, show_info(), stderr, and verbose. Referenced by readfs().

int dump_file (  int  special, d1_inode *  ip, char *  filename )

Definition at line 310 of file readfs.c. References access, ALL_MODES, b, BLOCK_SIZE, bp, close, creat, fprintf(), get_fileblock(), I_REGULAR, I_TYPE, buf::ip, noaction, nofiles, restore(), show_info(), size, stderr, verbose, and write.

int get_block (  int  fd, block_t  block, struct buf *  bp, int  type )

Definition at line 441 of file readfs.c. References cache_block::b_block, bp, cache, cp, fprintf(), get_rawblock(), i, NO_ZONE, NR_CACHES, NR_CBLOCKS, and stderr.

int get_fileblock (  int  special, d1_inode *  ip, block_t  b, struct buf *  bp )

Definition at line 363 of file readfs.c. References B_DATA, B_INDIRECT, bp, get_block(), int(), buf::ip, r, V1_INDIRECTS, V1_NR_DZONES, z, and zone_shift. Referenced by dump_dir(), and dump_file().

void get_flags (  char *  flags  )

Definition at line 115 of file readfs.c. References fprintf(), noaction, nofiles, stderr, and verbose. Referenced by main().

int get_inode (  int  fd, ino_t  inum, d1_inode *  ip )

Definition at line 203 of file readfs.c. References B_INODE, bp, get_block(), inodes_per_block, buf::ip, memcpy(), super_block::s_imap_blocks, super_block::s_zmap_blocks, and sb.

int get_rawblock (  int  special, block_t  blockno, char *  bufp )

Definition at line 490 of file readfs.c. References BLOCK_SIZE, fprintf(), lseek, pos, read, SEEK_SET, and stderr. Referenced by get_block().

int main (  int  argc, char **  argv )

Definition at line 82 of file readfs.c. References exit(), fprintf(), get_flags(), readfs(), stderr, and strcpy().

int Mkdir (  char *  directory  )

Definition at line 584 of file readfs.c. References execl, exit(), fork, pid, status, and wait.

void readfs (  char *  special_file, char *  directory )

Definition at line 139 of file readfs.c. References BLOCK_SIZE, dump_dir(), fprintf(), get_inode(), inodes_per_block, lseek, magic, O_RDONLY, open, printf, read, ROOT_INODE, sb, SEEK_SET, special(), stderr, SUPER_MAGIC, SUPER_REV, SUPER_V2, umask, V1_INODES_PER_BLOCK, V2_INODES_PER_BLOCK, verbose, and zone_shift. Referenced by main().

void restore (  char *  name, d1_inode *  ip )

Definition at line 511 of file readfs.c. References ALL_MODES, chmod, chown, d1_inode::d1_gid, d1_inode::d1_mode, d1_inode::d1_mtime, d1_inode::d1_uid, and utime.

void show_info (  char *  name, d1_inode *  ip, char *  path )

Definition at line 536 of file readfs.c. References ALL_MODES, BLOCK_SIZE, d1_inode::d1_gid, d1_inode::d1_mode, d1_inode::d1_size, d1_inode::d1_uid, d1_inode::d1_zone, do_indent(), I_BLOCK_SPECIAL, I_CHAR_SPECIAL, I_DIRECTORY, I_SET_GID_BIT, I_SET_UID_BIT, I_TYPE, MAJOR, MINOR, printf, putchar, and RWX_MODES. Referenced by dump_dir(), and dump_file().

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Variable Documentation

struct cache_block cache[NR_CACHES][NR_CBLOCKS] [static]

Definition at line 437 of file readfs.c.

long counter = 0L [static]

Definition at line 438 of file readfs.c. Referenced by rl_check_ints().

int indent = 0 [static]

Definition at line 234 of file readfs.c.

int inodes_per_block

Definition at line 66 of file readfs.c.

char noaction = 0

Definition at line 60 of file readfs.c. Referenced by dump_dir(), dump_file(), and get_flags().

char nofiles = 0

Definition at line 62 of file readfs.c. Referenced by dump_file(), and get_flags().

char pathname[1024]

Definition at line 65 of file readfs.c.

struct super_block sb

Definition at line 64 of file readfs.c.

char special_chars[] [static]

Initial value: { '-', 'c', 'd', 'b' } Definition at line 529 of file readfs.c.

char verbose = 0

Definition at line 58 of file readfs.c.

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