#------------------------------------------------------------------------------ # $File: gnu,v 1.22 2020/04/09 19:11:58 christos Exp $ # gnu: file(1) magic for various GNU tools # # GNU nlsutils message catalog file format # # GNU message catalog (.mo and .gmo files) # Update: Joerg Jenderek # URL: https://www.gnu.org/software/gettext/manual/html_node/MO-Files.html # Reference: ftp://ftp.gnu.org/pub/gnu/gettext/gettext-0.19.8.tar.gz/ # gettext-0.19.8.1/gettext-runtime/intl/gmo.h # Note: maybe call it like "GNU translation gettext machine object" 0 string \336\22\4\225 GNU message catalog (little endian), #0 ulelong 0x950412DE GNU-format message catalog data # TODO: write lines in such a way that code can also be called for big endian variant #>0 use gettext-object #0 name gettext-object >4 ulelong x revision !:mime application/x-gettext-translation # mo extension is also used for Easeus Partition Master PE32 executable module # like ConvertFatToNTFS.mo !:ext gmo/mo # only found three revision combinations 0.0 0.1 1.1 as unsigned 32-bit # major revision >4 ulelong/0xFFff x %u. # minor revision >4 ulelong&0x0000FFff x \b%u >>8 ulelong x \b, %u message # plural s >>8 ulelong >1 \bs # size of hashing table #>20 ulelong x \b, %u hash #>20 ulelong >1 \bes #>24 ulelong x at 0x%x # for revsion x.0 offset of table with originals is 1Ch if directly after header >4 ulelong&0x0000FFff =0 >>12 ulelong !0x1C \b, at 0x%x string table # but for x.1 table offset i found is 30h. That means directly after bigger header >4 ulelong&0x0000FFff >0 >>12 ulelong !0x30 \b, at 0x%x string table # The following variables are only used in .mo files with minor revision >= 1 # number of system dependent segments #>>28 ulelong x \b, %u segment #>>28 ulelong >1 \bs # offset of table describing system dependent segments #>>32 ulelong x at 0x%x # number of system dependent strings pairs >>36 ulelong x \b, %u sysdep message >>36 ulelong >1 \bs # offset of table with start offsets of original sysdep strings #>>40 ulelong x \b, at 0x%x sysdep strings # offset of table with start offsets of translated sysdep strings #>>44 ulelong x \b, at 0x%x sysdep translations # >>(44.l) ulelong x 0x%x chars # >>>&0 ulelong x at 0x%x # >>>>(&-4) string x "%s" # string table after big header #>>48 ubequad x \b, string table 0x%llx # # 0th string length seems to be always 0 #>(12.l) ulelong x \b, %u chars #>>&0 ulelong x at 0x%x # if 1st string length positiv inspect offset and string #>(12.l+8) ulelong >0 \b, %u chars #>>&0 ulelong x at 0x%x # if 2nd string length positiv inspect offset and string # >(12.l+16) ulelong >0 \b, %u chars # >>&0 ulelong x at 0x%x # skip newline byte #>>>(&-4) ubyte =0x0A #>>>>&0 string x "%s" #>>>(&-4) ubyte !0x0A #>>>>&-1 string x '%s' # offset of table with translation strings #>16 ulelong x \b, at 0x%x translation table # check translation 0 length and offset >(16.l) ulelong >0 >>&0 ulelong x # translation 0 seems to be often Project-Id with name and version >>>(&-4) string x \b, %s # trans. 1 with bytes >= 1 unlike icoutils-0.31.0\po\en@boldquot.gmo with 1 NL >(16.l+8) ulelong >1 >>&0 ulelong x >>>(&-4) ubyte !0x0A >>>>&-1 string x '%s' # 1 New Line like in tar-1.29\po\de.gmo >>>(&-4) ubyte =0x0A >>>>&0 ubyte !0x0A >>>>>&-1 string x '%s' # 2nd New Line like in parted-3.1\po\de.gmo >>>>&0 ubyte =0x0A >>>>>&0 string x '%s' 0 string \225\4\22\336 GNU message catalog (big endian), #0 ubelong 0x950412DE GNU-format message catalog data !:mime application/x-gettext-translation !:ext gmo/mo # TODO: for big endian use same code as for little endian #>0 use \^gettext-object # DEBUG code #>16 ubelong x \b, at 0x%x translation table #>(16.L) ubelong x 0x%x chars #>>&0 ubelong x at 0x%x # unexpected value HERE! #>>>(&-4) ubequad x 0x%llx # >4 beshort x revision %d. >6 beshort >0 \b%d, >>8 belong x %d messages, >>36 belong x %d sysdep messages >6 beshort =0 \b%d, >>8 belong x %d messages # GnuPG # The format is very similar to pgp 0 string \001gpg GPG key trust database >4 byte x version %d # Note: magic.mime had 0x8501 for the next line instead of 0x8502 0 beshort 0x8502 GPG encrypted data !:mime text/PGP # encoding: data # Update: Joerg Jenderek # Note: PGP and GPG use same data structure. # So recognition is now done by ./pgp with start test for byte 0x99 # This magic is not particularly good, as the keyrings don't have true # magic. Nevertheless, it covers many keyrings. # 0 ubeshort-0x9901 <2 # >3 byte 4 # >>4 bedate x GPG key public ring, created %s # !:mime application/x-gnupg-keyring # Symmetric encryption 0 leshort 0x0d8c >4 leshort 0x0203 >>2 leshort 0x0204 GPG symmetrically encrypted data (3DES cipher) >>2 leshort 0x0304 GPG symmetrically encrypted data (CAST5 cipher) >>2 leshort 0x0404 GPG symmetrically encrypted data (BLOWFISH cipher) >>2 leshort 0x0704 GPG symmetrically encrypted data (AES cipher) >>2 leshort 0x0804 GPG symmetrically encrypted data (AES192 cipher) >>2 leshort 0x0904 GPG symmetrically encrypted data (AES256 cipher) >>2 leshort 0x0a04 GPG symmetrically encrypted data (TWOFISH cipher) >>2 leshort 0x0b04 GPG symmetrically encrypted data (CAMELLIA128 cipher) >>2 leshort 0x0c04 GPG symmetrically encrypted data (CAMELLIA192 cipher) >>2 leshort 0x0d04 GPG symmetrically encrypted data (CAMELLIA256 cipher) # GnuPG Keybox file # # From: Philipp Hahn 0 belong 32 >4 byte 1 >>8 string KBXf GPG keybox database >>>5 byte 1 version %d >>>16 bedate x \b, created-at %s >>>20 bedate x \b, last-maintained %s # From: James Youngman # gnu find magic 0 string \0LOCATE GNU findutils locate database data >7 string >\0 \b, format %s >7 string 02 \b (frcode) # Files produced by GNU gettext # gettext message catalogue 0 search/1024 \nmsgid >&0 search/1024 \nmsgstr GNU gettext message catalogue text !:strength +100 !:mime text/x-po