FlashGet JCD file format structure

by on

Thanks to Nikola Bozovic, we can provide you with almost full file structure of JCD file format. This format of file is saved with FlashGet version 1.73 build 128.

JCD Format Structure

LEGEND

UBYTE - unsigned byte (8 bits)
UINT - unsigned int (32 bits)
ArrayOf(TYPE) - array of element TYPE
OleString - Packed string element 1 byte (8 bits) as N, and N bytes (characters) following
enum - bitfield (32 bits)
USHORT - unsigned short (16 bits)
CTime - Date Time packed as mfc CTime (1/1/1970)

File structure

byte size

data type

name

comment

1

UBYTE

Signature

 0x48

4

UINT

RecordsCount

total records in db

0+N

ArrayOf(RCATEGORY or RFILE)

Records

array of records

 

 

RCATEGORY structure

byte size

data type

name

comment

4

UINT

type

defines record type (1, 5)

4

UINT

ID

record unique identifier

4

UINT

_u01

* unknown

4

UINT

_u02

* unknown

4

UINT

_u03

* unknown

4

UINT

_u04

* unknown

4

UINT

_u05

* unknown

1+N

OleString

Name

Category name

1+N

OleString

Path

Category folder path

 

RFILE structure

byte size

data type

name

comment

4

UINT

type

defines record type (2)

4

UINT

ID

record unique identifier

4

UINT

_u03

* unknown (6)

4

UINT

_u04

* unknown (2)

4

UINT

IDDirCurrent

records current category

4

UINT

_u06

* unknown (0)

4

UINT

_u07

* unknown (79)

1+N

OleString

Url

file download url

4

enum

Flags

bit field flags [see *1]

1+N

OleString

ServerUsername

server login username

1+N

OleString

ServerPassword

server login password

4

UINT

IDDirTarget

target category for complete download

1+N

OleString

Filename

filename for download

4

UINT

NumOfCnn

Number of connections

1+N

OleString

Folder

folder for download

1+N

OleString

Comment

comment

4

UINT

_u11

* unknown (1 / 65537)

4

enum

State

1 - paused, 2 - started, 4 - complete, 8 - error

4

INT

FileSize

file size from server, -1 for unknown file size

1+N

OleString?

_s01

* unknown (0) maybe byte ?

4

CTime

FileDate

file date taken from server

4

CTime

CreateTime

file record create time

4

CTime

CompleteTime

file date complete time, last write date and time

1+N

OleString

Referer

Url referer

4

UINT

TotalTime

total seconds that download take

2

USHORT

_us18

* unknown (0)

4

UINT

AltUrlCount

alternate urls count

0+N

ArrayOf(ALTURL)

AltUrls

alternate urls array (can be zero size)

4

UINT

JetCount

download jets count

0+N

ArrayOf(JETITEM)

JetItems

jet items array (can be zero size)

4

UINT

_u21

* unknown (0)

 

ALTURL structure

byte size

data type

name

comment

1+N

OleString

Url

altername url

4

UINT

_u01

* unknown (0)

 

JETITEM structure

byte size

data type

name

comment

4

UINT

start

jet completed download file address starts

4

UINT

end

jet completed download file address ends

 

 

// Bit field [*1]
[Flags]
public enum JCDFileFlags : uint
{
bit1 = 1, /* incoplete download */
bit2 = 2, /* incoplete download */
LoginToServer = 4,
bit4 = 8,
bit5 = 0x10,
bit6 = 0x20,
bit7 = 0x40,
bit8 = 0x80,
bit9 = 0x100, /* incoplete download */
bit10 = 0x200, /* incoplete download */
bit11 = 0x400,
FtpDownloadSubDirs = 0x800,
CreateSubDirsLocally = 0x1000,
CreateCategory = 0x2000,
bit15 = 0x4000,
bit16 = 0x8000,
bit17 = 0x10000,
bit18 = 0x20000,
bit19 = 0x40000,
bit20 = 0x80000,
bit21 = 0x100000,
bit22 = 0x200000,
bit23 = 0x400000,
bit24 = 0x800000,
bit25 = 0x1000000,
bit26 = 0x2000000,
bit27 = 0x4000000,
bit28 = 0x8000000,
bit29 = 0x10000000,
bit30 = 0x20000000,
bit31 = 0x40000000,
bit32 = 0x80000000

 

Related software and links:

FlashGet icon

FlashGet    Microsoft Windows platform
A download manager for Windows

 

Did this entry help you?
If the information in this article helped you, please share it with your friends!

Subscribe to File-Extensions.org and get our news everywhere!

RSS

Add new comment about “JCD Format Structure

Related file extensions

jcd - FlashGet saved data

Go to:
Article related software
Add comments...

Follow us!

Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)

RSS feed