1 2#------------------------------------------------------------------------------ 3# $File: aria,v 1.2 2024/06/10 23:09:52 christos Exp $ 4# aria: file(1) magic for download manager aria 5# URL: https://de.wikipedia.org/wiki/Aria_(Software) 6# Reference: https://github.com/aria2/aria2/blob/master/doc/manual-src/en/technical-notes.rst 7# From: Joerg Jenderek 8# Note: only version 1 suited 9# check for valid version one 100 beshort 0x0001 11# skip most uncompressed DEGAS med-res bitmap *.PI2 and GEM bitmap (v1) *.IMG 12# by test for valid infoHashCheck extension 13>2 ubelong&0xffFFffFE 0x00000000 14# skip DEGAS med-res bitmap DIAGRAM1.PI2 by test for valid length of download 15>>(6.L+14) ubequad >0 16>>>0 use aria 170 name aria 18# version; (0x0000) or (0x0001); for 0 all multi-byte are in host byte order. For 1 big endian 19>0 beshort x aria2 control file, version %u 20#!:mime application/octet-stream 21!:mime application/x-aria 22!:ext aria2 23# EXTension; if EXT[3]&1 == 1 checks whether saved InfoHash and current downloading the same; infoHashCheck extension 24>2 ubelong !0 \b, infoHashCheck %#x 25# info hash length like: 0 14h 26>6 ubelong !0 \b, %#x bytes info hash 27# info hash; BitTorrent InfoHash 28>>10 ubequad x %#16.16llx... 29# piece length; the length of the piece like: 400h 100000h 30>(6.L+10) ubelong x \b, piece length 0x%x 31# total length; the total length of the download 32>(6.L+14) ubequad x \b, total length %llu 33#>(6.L+14) ubequad x \b, total length %#llx 34# upload length; the uploaded length of download like: 0 400h 35>(6.L+22) ubequad !0 \b, upload length %#llx 36# bitfield length; the length of bitfield like: 4 6 Ah 10h 13h 167h 37>(6.L+30) ubelong x \b, %#x bytes bitfield 38# bitfield; bitfield which represents current download progress 39>(6.L+34) ubequad !0 %#llx... 40 41