[TIKA-4068] Add magic for FAT Disk Image format

• Type: Sub-task
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Assignee: Unassigned
• Reporter: Gregory Lepore
• Created: 13/Jun/23 13:20
• Updated: 14/Jun/23 23:15

Description

The FAT Disk Image format occurs 614 times in the latest Common Crawl dataset. There is no known mime type for this format.

 

https://www.nationalarchives.gov.uk/PRONOM/fmt/1087

 

Signatures
External signatures	File extension: img File extension: ima File extension: dsk
Internal signatures
Name	FAT Disk Image
Description	BOF: Jump instruction bytes 1 and 3 - 0XEB{1}0x90, byte 14 = Sectors per cluster, any from 1, 2, 4, 8, 16, 32, 64, or 128
Byte sequences
Position type	Absolute from BOF
Offset	0
Maximum Offset	0
Byte order
Value	EB{1}90{10}(01|02|04|08|10|20|40|80)