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- #------------------------------------------------------------------------------
- # $File: aria,v 1.2 2024/06/10 23:09:52 christos Exp $
- # aria: file(1) magic for download manager aria
- # URL: https://de.wikipedia.org/wiki/Aria_(Software)
- # Reference: https://github.com/aria2/aria2/blob/master/doc/manual-src/en/technical-notes.rst
- # From: Joerg Jenderek
- # Note: only version 1 suited
- # check for valid version one
- 0 beshort 0x0001
- # skip most uncompressed DEGAS med-res bitmap *.PI2 and GEM bitmap (v1) *.IMG
- # by test for valid infoHashCheck extension
- >2 ubelong&0xffFFffFE 0x00000000
- # skip DEGAS med-res bitmap DIAGRAM1.PI2 by test for valid length of download
- >>(6.L+14) ubequad >0
- >>>0 use aria
- 0 name aria
- # version; (0x0000) or (0x0001); for 0 all multi-byte are in host byte order. For 1 big endian
- >0 beshort x aria2 control file, version %u
- #!:mime application/octet-stream
- !:mime application/x-aria
- !:ext aria2
- # EXTension; if EXT[3]&1 == 1 checks whether saved InfoHash and current downloading the same; infoHashCheck extension
- >2 ubelong !0 \b, infoHashCheck %#x
- # info hash length like: 0 14h
- >6 ubelong !0 \b, %#x bytes info hash
- # info hash; BitTorrent InfoHash
- >>10 ubequad x %#16.16llx...
- # piece length; the length of the piece like: 400h 100000h
- >(6.L+10) ubelong x \b, piece length 0x%x
- # total length; the total length of the download
- >(6.L+14) ubequad x \b, total length %llu
- #>(6.L+14) ubequad x \b, total length %#llx
- # upload length; the uploaded length of download like: 0 400h
- >(6.L+22) ubequad !0 \b, upload length %#llx
- # bitfield length; the length of bitfield like: 4 6 Ah 10h 13h 167h
- >(6.L+30) ubelong x \b, %#x bytes bitfield
- # bitfield; bitfield which represents current download progress
- >(6.L+34) ubequad !0 %#llx...
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