src/commands/ibm/dosread.c File Reference

#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <sys/times.h>
#include <unistd.h>

Go to the source code of this file.

Classes

struct dir_entry

Defines

#define MAX_CLUSTER_SIZE   4096

#define MAX_ROOT_ENTRIES   512

#define FAT_START   512L

#define ROOTADDR   (FAT_START + 2L * fat_size)

#define clus_add(cl_no)

#define NOT_USED   0x00

#define ERASED   0xE5

#define DIR   0x2E

#define DIR_SIZE   (sizeof (struct dir_entry))

#define SUB_DIR   0x10

#define NIL_DIR   ((DIRECTORY *) 0)

#define LAST_CLUSTER12   0xFFF

#define LAST_CLUSTER   0xFFFF

#define FREE   0x000

#define BAD   0xFF0

#define BAD16   0xFFF0

#define TRUE   1

#define FALSE   0

#define NIL_PTR   ((char *) 0)

#define DOS_TIME   315532800L

#define READ   0

#define WRITE   1

#define FIND   3

#define LABEL   4

#define ENTRY   5

#define find_entry(d, e, p)   directory(d, e, FIND, p)

#define list_dir(d, e, f)   (void) directory(d, e, f, NIL_PTR)

#define label()   directory(root, root_entries, LABEL, NIL_PTR)

#define new_entry(d, e)   directory(d, e, ENTRY, NIL_PTR)

#define is_dir(d)   ((d)->d_attribute & SUB_DIR)

#define STD_OUT   1

#define DRIVE_NR   (sizeof (drive) - 2)

#define COOKED_SIZE   8192

#define SEC_MIN   60L

#define SEC_HOUR   (60L * SEC_MIN)

#define SEC_DAY   (24L * SEC_HOUR)

#define SEC_YEAR   (365L * SEC_DAY)

#define SEC_LYEAR   (366L * SEC_DAY)

#define HOUR   0xF800

#define MIN   0x07E0

#define YEAR   0xFE00

#define MONTH   0x01E0

#define DAY   0x01F

Typedefs

typedef struct dir_entry DIRECTORY

typedef int BOOL

Functions

_PROTOTYPE (void usage,(char *prog_name))

_PROTOTYPE (unsigned c2u2,(unsigned char *ucarray))

_PROTOTYPE (unsigned long c4u4,(unsigned char *ucarray))

_PROTOTYPE (void determine,(void))

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

_PROTOTYPE (DIRECTORY *directory,(DIRECTORY *dir, int entries, BOOL function, char *pathname))

_PROTOTYPE (void extract,(DIRECTORY *entry))

_PROTOTYPE (void make_file,(DIRECTORY *dir_ptr, int entries, char *name))

_PROTOTYPE (char *make_name,(DIRECTORY *dir_ptr, int dir_fl))

_PROTOTYPE (int fill,(char *buffer, size_t size))

_PROTOTYPE (void xmodes,(int mode))

_PROTOTYPE (void show,(DIRECTORY *dir_ptr, char *name))

_PROTOTYPE (DIRECTORY *read_cluster,(unsigned int cluster))

_PROTOTYPE (unsigned short free_cluster,(BOOL leave_fl))

_PROTOTYPE (void link_fat,(unsigned int cl_1, unsigned int cl_2))

_PROTOTYPE (unsigned short next_cluster,(unsigned int cl_no))

_PROTOTYPE (char *slash,(char *str))

_PROTOTYPE (void add_path,(char *file, BOOL slash_fl))

_PROTOTYPE (void disk_io,(BOOL op, unsigned long seek, void *address, unsigned bytes))

_PROTOTYPE (void read_fat,(unsigned int cl_no))

_PROTOTYPE (BOOL free_range,(unsigned short *first, unsigned short *last))

_PROTOTYPE (long lmin,(long a, long b))

void usage (char *prog_name)

unsigned c2u2 (unsigned char *ucarray)

unsigned long c4u4 (unsigned char *ucarray)

void determine ()

int main (int argc, argv)

DIRECTORY * directory (DIRECTORY *dir, int entries, int function, char *pathname)

void extract (DIRECTORY *entry)

long lmin (long a, long b)

void make_file (DIRECTORY *dir_ptr, int entries, char *name)

void fill_date (DIRECTORY *entry)

char * make_name (DIRECTORY *dir_ptr, short dir_fl)

int fill (char *buffer, size_t size)

void xmodes (int mode)

void show (DIRECTORY *dir_ptr, char *name)

void free_blocks ()

DIRECTORY * read_cluster (unsigned int cluster)

BOOL free_range (unsigned short *first, unsigned short *last)

unsigned short free_cluster (BOOL leave_fl)

void read_fat (unsigned int cl_no)

void flush_fat ()

void link_fat (unsigned int cl_1, unsigned int cl_2)

unsigned short next_cluster (unsigned int cl_no)

char * slash (char *str)

void add_path (char *file, BOOL slash_fl)

void disk_io (BOOL op, unsigned long seek, void *address, unsigned bytes)

Variables

char * cmnd

unsigned short mon_len [] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}

char * month []

char dosread_c_rcs_id []

Define Documentation

#define BAD 0xFF0

Definition at line 60 of file dosread.c.

#define BAD16 0xFFF0

Definition at line 61 of file dosread.c.

#define clus_add ( cl_no )

Value:

((long) (((long) cl_no - 2L) \
                                 * (long) cluster_size \
                                 + data_start \
                                ))

Definition at line 33 of file dosread.c.

#define COOKED_SIZE 8192

Definition at line 106 of file dosread.c.

#define DAY 0x01F

Definition at line 795 of file dosread.c.

#define DIR 0x2E

Definition at line 52 of file dosread.c.

#define DIR_SIZE (sizeof (struct dir_entry))

Definition at line 53 of file dosread.c.

#define DOS_TIME 315532800L

Definition at line 69 of file dosread.c.

#define DRIVE_NR (sizeof (drive) - 2)

Definition at line 93 of file dosread.c.

#define ENTRY 5

Definition at line 76 of file dosread.c.

#define ERASED 0xE5

Definition at line 51 of file dosread.c.

#define FALSE 0

Definition at line 66 of file dosread.c.

#define FAT_START 512L

Definition at line 31 of file dosread.c.

#define FIND 3

Definition at line 74 of file dosread.c.

#define find_entry	(	d,
		e,
		p	)	directory(d, e, FIND, p)

Definition at line 77 of file dosread.c.

#define FREE 0x000

Definition at line 59 of file dosread.c.

#define HOUR 0xF800

Definition at line 791 of file dosread.c.

#define is_dir ( d ) ((d)->d_attribute & SUB_DIR)

Definition at line 82 of file dosread.c.

#define label ( ) directory(root, root_entries, LABEL, NIL_PTR)

Definition at line 79 of file dosread.c.

#define LABEL 4

Definition at line 75 of file dosread.c.

#define LAST_CLUSTER 0xFFFF

Definition at line 58 of file dosread.c.

#define LAST_CLUSTER12 0xFFF

Definition at line 57 of file dosread.c.

#define list_dir	(	d,
		e,
		f	)	(void) directory(d, e, f, NIL_PTR)

Definition at line 78 of file dosread.c.

#define MAX_CLUSTER_SIZE 4096

Definition at line 29 of file dosread.c.

#define MAX_ROOT_ENTRIES 512

Definition at line 30 of file dosread.c.

#define MIN 0x07E0

Definition at line 792 of file dosread.c.

#define MONTH 0x01E0

Definition at line 794 of file dosread.c.

#define new_entry	(	d,
		e		)	directory(d, e, ENTRY, NIL_PTR)

Definition at line 80 of file dosread.c.

#define NIL_DIR ((DIRECTORY *) 0)

Definition at line 55 of file dosread.c.

#define NIL_PTR ((char *) 0)

Definition at line 67 of file dosread.c.

#define NOT_USED 0x00

Definition at line 50 of file dosread.c.

#define READ 0

Definition at line 71 of file dosread.c.

#define ROOTADDR (FAT_START + 2L * fat_size)

Definition at line 32 of file dosread.c.

#define SEC_DAY (24L * SEC_HOUR)

Definition at line 690 of file dosread.c.

#define SEC_HOUR (60L * SEC_MIN)

Definition at line 689 of file dosread.c.

#define SEC_LYEAR (366L * SEC_DAY)

Definition at line 692 of file dosread.c.

#define SEC_MIN 60L

Definition at line 688 of file dosread.c.

#define SEC_YEAR (365L * SEC_DAY)

Definition at line 691 of file dosread.c.

#define STD_OUT 1

Definition at line 84 of file dosread.c.

#define SUB_DIR 0x10

Definition at line 54 of file dosread.c.

#define TRUE 1

Definition at line 65 of file dosread.c.

#define WRITE 1

Definition at line 72 of file dosread.c.

#define YEAR 0xFE00

Definition at line 793 of file dosread.c.

Typedef Documentation

typedef int BOOL

Definition at line 63 of file dosread.c.

typedef struct dir_entry DIRECTORY

Definition at line 48 of file dosread.c.

Function Documentation

_PROTOTYPE	(	long	lmin,
		(long a, long b)
	)

_PROTOTYPE	(	BOOL	free_range,
		(unsigned short first, unsigned short last)
	)

_PROTOTYPE	(	void	read_fat,
		(unsigned int cl_no)
	)

_PROTOTYPE	(	void	disk_io,
		(BOOL op, unsigned long seek, void *address, unsigned bytes)
	)

_PROTOTYPE	(	void	add_path,
		(char *file, BOOL slash_fl)
	)

_PROTOTYPE	(	char *	slash,
		(char *str)
	)

_PROTOTYPE	(	unsigned short	next_cluster,
		(unsigned int cl_no)
	)

_PROTOTYPE	(	void	link_fat,
		(unsigned int cl_1, unsigned int cl_2)
	)

_PROTOTYPE	(	unsigned short	free_cluster,
		(BOOL leave_fl)
	)

_PROTOTYPE	(	DIRECTORY *	read_cluster,
		(unsigned int cluster)
	)

_PROTOTYPE	(	void	show,
		(DIRECTORY dir_ptr, char name)
	)

_PROTOTYPE	(	void	xmodes,
		(int mode)
	)

_PROTOTYPE	(	int	fill,
		(char *buffer, size_t size)
	)

_PROTOTYPE	(	char *	make_name,
		(DIRECTORY *dir_ptr, int dir_fl)
	)

_PROTOTYPE	(	void	make_file,
		(DIRECTORY dir_ptr, int entries, char name)
	)

_PROTOTYPE	(	void	extract,
		(DIRECTORY *entry)
	)

_PROTOTYPE	(	DIRECTORY *	directory,
		(DIRECTORY dir, int entries, BOOL function, char pathname)
	)

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

_PROTOTYPE	(	void	determine,
		(void)
	)

_PROTOTYPE	(	unsigned long	c4u4,
		(unsigned char *ucarray)
	)

_PROTOTYPE	(	unsigned	c2u2,
		(unsigned char *ucarray)
	)

_PROTOTYPE	(	void	usage,
		(char *prog_name)
	)

void add_path	(	char *	file,
		BOOL	slash_fl
	)

Definition at line 1074 of file dosread.c.

unsigned c2u2 ( unsigned char * ucarray )

Definition at line 157 of file dosread.c.

unsigned long c4u4 ( unsigned char * ucarray )

Definition at line 163 of file dosread.c.

void determine ( )

Definition at line 171 of file dosread.c.

DIRECTORY* directory	(	DIRECTORY *	dir,
		int	entries,
		int	function,
		char *	pathname
	)

Definition at line 441 of file dosread.c.

void disk_io	(	BOOL	op,
		unsigned long	seek,
		void *	address,
		unsigned	bytes
	)

Definition at line 1094 of file dosread.c.

void extract ( DIRECTORY * entry )

Definition at line 567 of file dosread.c.

int fill	(	char *	buffer,
		size_t	size
	)

Definition at line 763 of file dosread.c.

void fill_date ( DIRECTORY * entry )

Definition at line 696 of file dosread.c.

void flush_fat ( )

Definition at line 1002 of file dosread.c.

void free_blocks ( )

Definition at line 840 of file dosread.c.

unsigned short free_cluster ( BOOL leave_fl )

Definition at line 905 of file dosread.c.

BOOL free_range	(	unsigned short *	first,
		unsigned short *	last
	)

Definition at line 882 of file dosread.c.

void link_fat	(	unsigned int	cl_1,
		unsigned int	cl_2
	)

Definition at line 1040 of file dosread.c.

long lmin	(	long	a,
		long	b
	)

Definition at line 617 of file dosread.c.

int main	(	int argc	,
		argv
	)

Definition at line 295 of file dosread.c.

void make_file	(	DIRECTORY *	dir_ptr,
		int	entries,
		char *	name
	)

Definition at line 625 of file dosread.c.

char* make_name	(	DIRECTORY *	dir_ptr,
		short	dir_fl
	)

Definition at line 736 of file dosread.c.

unsigned short next_cluster ( unsigned int cl_no )

Definition at line 1053 of file dosread.c.

DIRECTORY* read_cluster ( unsigned int cluster )

Definition at line 859 of file dosread.c.

void read_fat ( unsigned int cl_no )

Definition at line 921 of file dosread.c.

void show	(	DIRECTORY *	dir_ptr,
		char *	name
	)

Definition at line 810 of file dosread.c.

char* slash ( char * str )

Definition at line 1063 of file dosread.c.

void usage ( char * prog_name )

Definition at line 149 of file dosread.c.

void xmodes ( int mode )

Definition at line 802 of file dosread.c.

Variable Documentation

char* cmnd

Definition at line 86 of file dosread.c.

char dosread_c_rcs_id[]

Initial value:

 
        "$Id: dosread.c 5628 2009-11-09 10:26:00Z thruby $"

Definition at line 1119 of file dosread.c.

unsigned short mon_len[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}

Definition at line 694 of file dosread.c.

char* month[]

Initial value:

 {
         "Jan", "Feb", "Mar", "Apr", "May", "Jun",
         "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
}

Definition at line 797 of file dosread.c.


Classes
struct	dir_entry
Defines
#define	MAX_CLUSTER_SIZE 4096
#define	MAX_ROOT_ENTRIES 512
#define	FAT_START 512L
#define	ROOTADDR (FAT_START + 2L * fat_size)
#define	clus_add(cl_no)
#define	NOT_USED 0x00
#define	ERASED 0xE5
#define	DIR 0x2E
#define	DIR_SIZE (sizeof (struct dir_entry))
#define	SUB_DIR 0x10
#define	NIL_DIR ((DIRECTORY *) 0)
#define	LAST_CLUSTER12 0xFFF
#define	LAST_CLUSTER 0xFFFF
#define	FREE 0x000
#define	BAD 0xFF0
#define	BAD16 0xFFF0
#define	TRUE 1
#define	FALSE 0
#define	NIL_PTR ((char *) 0)
#define	DOS_TIME 315532800L
#define	READ 0
#define	WRITE 1
#define	FIND 3
#define	LABEL 4
#define	ENTRY 5
#define	find_entry(d, e, p) directory(d, e, FIND, p)
#define	list_dir(d, e, f) (void) directory(d, e, f, NIL_PTR)
#define	label() directory(root, root_entries, LABEL, NIL_PTR)
#define	new_entry(d, e) directory(d, e, ENTRY, NIL_PTR)
#define	is_dir(d) ((d)->d_attribute & SUB_DIR)
#define	STD_OUT 1
#define	DRIVE_NR (sizeof (drive) - 2)
#define	COOKED_SIZE 8192
#define	SEC_MIN 60L
#define	SEC_HOUR (60L * SEC_MIN)
#define	SEC_DAY (24L * SEC_HOUR)
#define	SEC_YEAR (365L * SEC_DAY)
#define	SEC_LYEAR (366L * SEC_DAY)
#define	HOUR 0xF800
#define	MIN 0x07E0
#define	YEAR 0xFE00
#define	MONTH 0x01E0
#define	DAY 0x01F
Typedefs
typedef struct dir_entry	DIRECTORY
typedef int	BOOL
Functions
	_PROTOTYPE (void usage,(char *prog_name))
	_PROTOTYPE (unsigned c2u2,(unsigned char *ucarray))
	_PROTOTYPE (unsigned long c4u4,(unsigned char *ucarray))
	_PROTOTYPE (void determine,(void))
	_PROTOTYPE (int main,(int argc, char *argv[]))
	_PROTOTYPE (DIRECTORY directory,(DIRECTORY dir, int entries, BOOL function, char *pathname))
	_PROTOTYPE (void extract,(DIRECTORY *entry))
	_PROTOTYPE (void make_file,(DIRECTORY dir_ptr, int entries, char name))
	_PROTOTYPE (char make_name,(DIRECTORY dir_ptr, int dir_fl))
	_PROTOTYPE (int fill,(char *buffer, size_t size))
	_PROTOTYPE (void xmodes,(int mode))
	_PROTOTYPE (void show,(DIRECTORY dir_ptr, char name))
	_PROTOTYPE (DIRECTORY *read_cluster,(unsigned int cluster))
	_PROTOTYPE (unsigned short free_cluster,(BOOL leave_fl))
	_PROTOTYPE (void link_fat,(unsigned int cl_1, unsigned int cl_2))
	_PROTOTYPE (unsigned short next_cluster,(unsigned int cl_no))
	_PROTOTYPE (char slash,(char str))
	_PROTOTYPE (void add_path,(char *file, BOOL slash_fl))
	_PROTOTYPE (void disk_io,(BOOL op, unsigned long seek, void *address, unsigned bytes))
	_PROTOTYPE (void read_fat,(unsigned int cl_no))
	_PROTOTYPE (BOOL free_range,(unsigned short first, unsigned short last))
	_PROTOTYPE (long lmin,(long a, long b))
void	usage (char *prog_name)
unsigned	c2u2 (unsigned char *ucarray)
unsigned long	c4u4 (unsigned char *ucarray)
void	determine ()
int	main (int argc, argv)
DIRECTORY *	directory (DIRECTORY dir, int entries, int function, char pathname)
void	extract (DIRECTORY *entry)
long	lmin (long a, long b)
void	make_file (DIRECTORY dir_ptr, int entries, char name)
void	fill_date (DIRECTORY *entry)
char *	make_name (DIRECTORY *dir_ptr, short dir_fl)
int	fill (char *buffer, size_t size)
void	xmodes (int mode)
void	show (DIRECTORY dir_ptr, char name)
void	free_blocks ()
DIRECTORY *	read_cluster (unsigned int cluster)
BOOL	free_range (unsigned short first, unsigned short last)
unsigned short	free_cluster (BOOL leave_fl)
void	read_fat (unsigned int cl_no)
void	flush_fat ()
void	link_fat (unsigned int cl_1, unsigned int cl_2)
unsigned short	next_cluster (unsigned int cl_no)
char *	slash (char *str)
void	add_path (char *file, BOOL slash_fl)
void	disk_io (BOOL op, unsigned long seek, void *address, unsigned bytes)
Variables
char *	cmnd
unsigned short	mon_len [] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
char *	month []
char	dosread_c_rcs_id []