Re: Of Yarn and Source Code

From: Ciaran Dunn (ciaran@dynamite.com.au)
Date: Sun, 22 Mar 1998 10:36:08 +1000

For those who are interested here s what I know of the overview
file format

The Overview Files

The overview file holds information for articles for display in
the art
selection level.

The structures are as follows

Header of File(8 bytes)

First four bytes is start Entry ID

Second four bytes is end Entry ID

----------------------------------

Note : If the end entry is less than the start entry the file is
empty.

----------------------------------

Each entry in the file then has the following format

First 4 bytes - Entry ID

0x20 - Marks start of subject

Subject

0x0a - Marks end of subject

0x20 - Marks start of mail address

Mail address

0x0a - Marks end of mail address

4 bytes of C-style time_t timestamp(ie seconds since 01/01/1970)

Message ID

0x0a - Marks end of message ID

Reference List(delimited by 0x20)

ie A ref list with three references

Ref1
0x20
Ref2
0x20
Ref3
0x0a - Marks end of ref list

7 bytes

xx - ??
xx - ??
xx - ??
xx - Length (MSB ???)
xx - Length (LSB)
xx - ??
xx - ?? - These last two bytes seem to commonly be 00 01 or 00 00

If anyone knows anything further about the last 7 bytes please get
in touch with me.

Cheers,
Ciaran

-- 
We should flee in terror... Yes that would be the wisest course
ciaran@dynamite.com.au