View Issue Details
ID | Project | Category | View Status | Date Submitted | Last Update |
---|---|---|---|---|---|
0000308 | file | General | public | 2022-01-18 10:39 | 2022-02-14 16:47 |
Reporter | adepasquale | Assigned To | christos | ||
Priority | normal | Severity | minor | Reproducibility | always |
Status | resolved | Resolution | fixed | ||
Product Version | 5.41 | ||||
Fixed in Version | 5.42 | ||||
Summary | 0000308: Fix and improve ARJ file information | ||||
Description | Current file 5.41 has an issue parsing the "original filename" from ARJ archive headers (wrong offset). I updated the offset, as well as added more information based on open source documentation: https://fossies.org/linux/unarj/unarj.c https://www.fileformat.info/format/arj/corion.htm http://hmelnov.icc.ru/geos/scripts/WWWBinV.dll/ShowR?ARJ.rfh See the attached patch and hexdump of a sample file header (use xxd -r to restore). Output before/after applying the patch: test.arj: ARJ archive data, v11, slash-switched, original name: , os: Unix test.arj: ARJ archive data, v11, slash-switched, original name: example_m0.arj, OS: Unix | ||||
Tags | magic | ||||
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arj.patch (1,335 bytes)
diff --git a/magic/Magdir/archive b/magic/Magdir/archive index d4fd3c92..80f6e8e7 100644 --- a/magic/Magdir/archive +++ b/magic/Magdir/archive @@ -931,22 +931,25 @@ # ARJ archiver (jason@jarthur.Claremont.EDU) 0 leshort 0xea60 ARJ archive data !:mime application/x-arj ->5 byte x \b, v%d, ->8 byte &0x04 multi-volume, ->8 byte &0x10 slash-switched, ->8 byte &0x20 backup, ->34 string x original name: %s, ->7 byte 0 os: MS-DOS ->7 byte 1 os: PRIMOS ->7 byte 2 os: Unix ->7 byte 3 os: Amiga ->7 byte 4 os: Macintosh ->7 byte 5 os: OS/2 ->7 byte 6 os: Apple ][ GS ->7 byte 7 os: Atari ST ->7 byte 8 os: NeXT ->7 byte 9 os: VAX/VMS ->3 byte >0 %d] +>5 byte x \b, v%d +>8 byte &0x01 \b, password-protected +#>8 byte &0x02 \b, secured +>8 byte &0x04 \b, multi-volume +>8 byte &0x08 \b, file-offset +>8 byte &0x10 \b, slash-switched +>8 byte &0x20 \b, backup +>8 byte &0x40 \b, secured +>38 string x \b, original name: %s +>7 byte 0 \b, OS: MS-DOS +>7 byte 1 \b, OS: PRIMOS +>7 byte 2 \b, OS: Unix +>7 byte 3 \b, OS: Amiga +>7 byte 4 \b, OS: Macintosh +>7 byte 5 \b, OS: OS/2 +>7 byte 6 \b, OS: Apple ][ GS +>7 byte 7 \b, OS: Atari ST +>7 byte 8 \b, OS: NeXT +>7 byte 9 \b, OS: VAX/VMS # [JW] idarc says this is also possible 2 leshort 0xea60 ARJ archive data |
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Committed, thanks! |
Date Modified | Username | Field | Change |
---|---|---|---|
2022-01-18 10:39 | adepasquale | New Issue | |
2022-01-18 10:39 | adepasquale | File Added: arj.patch | |
2022-01-18 10:39 | adepasquale | File Added: test_arj.hex | |
2022-01-18 10:39 | adepasquale | Tag Attached: magic | |
2022-02-14 16:47 | christos | Assigned To | => christos |
2022-02-14 16:47 | christos | Status | new => assigned |
2022-02-14 16:47 | christos | Status | assigned => resolved |
2022-02-14 16:47 | christos | Resolution | open => fixed |
2022-02-14 16:47 | christos | Fixed in Version | => 5.42 |
2022-02-14 16:47 | christos | Note Added: 0003694 |