[TIKA-4083] Add magic for ClamAV CDiff files

• Type: Sub-task
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Assignee: Unassigned
• Reporter: Gregory Lepore
• Created: 15/Jun/23 11:29
• Updated: 15/Jun/23 12:03

Description

The ClamAV CDIFF format appears 1,582 times in the latest Common Crawl dataset. No known mime type.

The magic is 436C616D41562D44696666 at offset 0 (ClamAV-Diff in ASCII).

File extension is .cdiff.

 

https://blog.clamav.net/2021/03/clamav-cvds-cdiffs-and-magic-behind.html