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+#------------------------------------------------------------------------------
+# $File: database,v 1.69 2023/01/12 00:14:04 christos Exp $
+# database: file(1) magic for various databases
+#
+# extracted from header/code files by Graeme Wilford (eep2gw@ee.surrey.ac.uk)
+#
+#
+# GDBM magic numbers
+# Will be maintained as part of the GDBM distribution in the future.
+# <downsj@teeny.org>
+0 belong 0x13579acd GNU dbm 1.x or ndbm database, big endian, 32-bit
+!:mime application/x-gdbm
+0 belong 0x13579ace GNU dbm 1.x or ndbm database, big endian, old
+!:mime application/x-gdbm
+0 belong 0x13579acf GNU dbm 1.x or ndbm database, big endian, 64-bit
+!:mime application/x-gdbm
+0 lelong 0x13579acd GNU dbm 1.x or ndbm database, little endian, 32-bit
+!:mime application/x-gdbm
+0 lelong 0x13579ace GNU dbm 1.x or ndbm database, little endian, old
+!:mime application/x-gdbm
+0 lelong 0x13579acf GNU dbm 1.x or ndbm database, little endian, 64-bit
+!:mime application/x-gdbm
+0 string GDBM GNU dbm 2.x database
+!:mime application/x-gdbm
+#
+# Berkeley DB
+#
+# Ian Darwin's file /etc/magic files: big/little-endian version.
+#
+# Hash 1.85/1.86 databases store metadata in network byte order.
+# Btree 1.85/1.86 databases store the metadata in host byte order.
+# Hash and Btree 2.X and later databases store the metadata in host byte order.
+
+0 long 0x00061561 Berkeley DB
+!:mime application/x-dbm
+>8 belong 4321
+>>4 belong >2 1.86
+>>4 belong <3 1.85
+>>4 belong >0 (Hash, version %d, native byte-order)
+>8 belong 1234
+>>4 belong >2 1.86
+>>4 belong <3 1.85
+>>4 belong >0 (Hash, version %d, little-endian)
+
+0 belong 0x00061561 Berkeley DB
+>8 belong 4321
+>>4 belong >2 1.86
+>>4 belong <3 1.85
+>>4 belong >0 (Hash, version %d, big-endian)
+>8 belong 1234
+>>4 belong >2 1.86
+>>4 belong <3 1.85
+>>4 belong >0 (Hash, version %d, native byte-order)
+
+0 long 0x00053162 Berkeley DB 1.85/1.86
+>4 long >0 (Btree, version %d, native byte-order)
+0 belong 0x00053162 Berkeley DB 1.85/1.86
+>4 belong >0 (Btree, version %d, big-endian)
+0 lelong 0x00053162 Berkeley DB 1.85/1.86
+>4 lelong >0 (Btree, version %d, little-endian)
+
+12 long 0x00061561 Berkeley DB
+>16 long >0 (Hash, version %d, native byte-order)
+12 belong 0x00061561 Berkeley DB
+>16 belong >0 (Hash, version %d, big-endian)
+12 lelong 0x00061561 Berkeley DB
+>16 lelong >0 (Hash, version %d, little-endian)
+
+12 long 0x00053162 Berkeley DB
+>16 long >0 (Btree, version %d, native byte-order)
+12 belong 0x00053162 Berkeley DB
+>16 belong >0 (Btree, version %d, big-endian)
+12 lelong 0x00053162 Berkeley DB
+>16 lelong >0 (Btree, version %d, little-endian)
+
+12 long 0x00042253 Berkeley DB
+>16 long >0 (Queue, version %d, native byte-order)
+12 belong 0x00042253 Berkeley DB
+>16 belong >0 (Queue, version %d, big-endian)
+12 lelong 0x00042253 Berkeley DB
+>16 lelong >0 (Queue, version %d, little-endian)
+
+# From Max Bowsher.
+12 long 0x00040988 Berkeley DB
+>16 long >0 (Log, version %d, native byte-order)
+12 belong 0x00040988 Berkeley DB
+>16 belong >0 (Log, version %d, big-endian)
+12 lelong 0x00040988 Berkeley DB
+>16 lelong >0 (Log, version %d, little-endian)
+
+#
+#
+# Round Robin Database Tool by Tobias Oetiker <oetiker@ee.ethz.ch>
+0 string/b RRD\0 RRDTool DB
+>4 string/b x version %s
+
+>>10 short !0 16bit aligned
+>>>10 bedouble 8.642135e+130 big-endian
+>>>>18 short x 32bit long (m68k)
+
+>>10 short 0
+>>>12 long !0 32bit aligned
+>>>>12 bedouble 8.642135e+130 big-endian
+>>>>>20 long 0 64bit long
+>>>>>20 long !0 32bit long
+>>>>12 ledouble 8.642135e+130 little-endian
+>>>>>24 long 0 64bit long
+>>>>>24 long !0 32bit long (i386)
+>>>>12 string \x43\x2b\x1f\x5b\x2f\x25\xc0\xc7 middle-endian
+>>>>>24 short !0 32bit long (arm)
+
+>>8 quad 0 64bit aligned
+>>>16 bedouble 8.642135e+130 big-endian
+>>>>24 long 0 64bit long (s390x)
+>>>>24 long !0 32bit long (hppa/mips/ppc/s390/SPARC)
+>>>16 ledouble 8.642135e+130 little-endian
+>>>>28 long 0 64bit long (alpha/amd64/ia64)
+>>>>28 long !0 32bit long (armel/mipsel)
+
+#----------------------------------------------------------------------
+# ROOT: file(1) magic for ROOT databases
+#
+0 string root\0 ROOT file
+>4 belong x Version %d
+>33 belong x (Compression: %d)
+
+# XXX: Weak magic.
+# Alex Ott <ott@jet.msk.su>
+## Paradox file formats
+#2 leshort 0x0800 Paradox
+#>0x39 byte 3 v. 3.0
+#>0x39 byte 4 v. 3.5
+#>0x39 byte 9 v. 4.x
+#>0x39 byte 10 v. 5.x
+#>0x39 byte 11 v. 5.x
+#>0x39 byte 12 v. 7.x
+#>>0x04 byte 0 indexed .DB data file
+#>>0x04 byte 1 primary index .PX file
+#>>0x04 byte 2 non-indexed .DB data file
+#>>0x04 byte 3 non-incrementing secondary index .Xnn file
+#>>0x04 byte 4 secondary index .Ynn file
+#>>0x04 byte 5 incrementing secondary index .Xnn file
+#>>0x04 byte 6 non-incrementing secondary index .XGn file
+#>>0x04 byte 7 secondary index .YGn file
+#>>>0x04 byte 8 incrementing secondary index .XGn file
+
+## XBase database files
+# updated by Joerg Jenderek at Feb 2013
+# https://www.dbase.com/Knowledgebase/INT/db7_file_fmt.htm
+# https://www.clicketyclick.dk/databases/xbase/format/dbf.html
+# inspect VVYYMMDD , where 1<= MM <= 12 and 1<= DD <= 31
+0 ubelong&0x0000FFFF <0x00000C20
+!:strength +10
+# skip Infocom game Z-machine
+>2 ubyte >0
+# skip Androids *.xml
+>>3 ubyte >0
+>>>3 ubyte <32
+# 1 < version VV
+>>>>0 ubyte >1
+# skip HELP.CA3 by test for reserved byte ( NULL )
+>>>>>27 ubyte 0
+# reserved bytes not always 0 ; also found 0x3901 (T4.DBF) ,0x7101 (T5.DBF,T6.DBF)
+#>>>>>30 ubeshort x 30NULL?%x
+# possible production flag,tag numbers(<=0x30),tag length(<=0x20), reserved (NULL)
+>>>>>>24 ubelong&0xffFFFFff >0x01302000
+# .DBF or .MDX
+>>>>>>24 ubelong&0xffFFFFff <0x01302001
+# for Xbase Database file (*.DBF) reserved (NULL) for multi-user
+>>>>>>>24 ubelong&0xffFFFFff =0
+# test for 2 reserved NULL bytes,transaction and encryption byte flag
+>>>>>>>>12 ubelong&0xFFFFfEfE 0
+# test for MDX flag
+>>>>>>>>>28 ubyte x
+>>>>>>>>>28 ubyte&0xf8 0
+# header size >= 32
+>>>>>>>>>>8 uleshort >31
+# skip PIC15736.PCX by test for language driver name or field name
+>>>>>>>>>>>32 ubyte >0
+#!:mime application/x-dbf; charset=unknown-8bit ??
+#!:mime application/x-dbase
+>>>>>>>>>>>>0 use xbase-type
+# database file
+>>>>>>>>>>>>28 ubyte&0x04 =0 \b DBF
+!:ext dbf
+>>>>>>>>>>>>28 ubyte&0x04 =4 \b DataBaseContainer
+!:ext dbc
+>>>>>>>>>>>>4 lelong 0 \b, no records
+>>>>>>>>>>>>4 lelong >0 \b, %d record
+# plural s appended
+>>>>>>>>>>>>>4 lelong >1 \bs
+# https://www.clicketyclick.dk/databases/xbase/format/dbf_check.html#CHECK_DBF
+# 1 <= record size <= 4000 (dBase 3,4) or 32 * KB (=0x8000)
+>>>>>>>>>>>>10 uleshort x * %d
+# file size = records * record size + header size
+>>>>>>>>>>>>1 ubyte x \b, update-date
+>>>>>>>>>>>>1 use xbase-date
+# https://msdn.microsoft.com/de-de/library/cc483186(v=vs.71).aspx
+#>>>>>>>>>>>>29 ubyte =0 \b, codepage ID=%#x
+# 2~cp850 , 3~cp1252 , 0x1b~?? ; what code page is 0x1b ?
+>>>>>>>>>>>>29 ubyte >0 \b, codepage ID=%#x
+#>>>>>>>>>>>>28 ubyte&0x01 0 \b, no index file
+# MDX or CDX index
+>>>>>>>>>>>>28 ubyte&0x01 1 \b, with index file .MDX
+>>>>>>>>>>>>28 ubyte&0x02 2 \b, with memo .FPT
+#>>>>>>>>>>>>28 ubyte&0x04 4 \b, DataBaseContainer
+# 1st record offset + 1 = header size
+>>>>>>>>>>>>8 uleshort >0
+>>>>>>>>>>>>(8.s+1) ubyte >0
+>>>>>>>>>>>>>8 uleshort >0 \b, at offset %d
+>>>>>>>>>>>>>(8.s+1) ubyte >0
+>>>>>>>>>>>>>>&-1 string >\0 1st record "%s"
+# for multiple index files (*.MDX) Production flag,tag numbers(<=0x30),tag length(<=0x20), reserved (NULL)
+>>>>>>>24 ubelong&0x0133f7ff >0
+# test for reserved NULL byte
+>>>>>>>>47 ubyte 0
+# test for valid TAG key format (0x10 or 0)
+>>>>>>>>>559 ubyte&0xeF 0
+# test MM <= 12
+>>>>>>>>>>45 ubeshort <0x0C20
+>>>>>>>>>>>45 ubyte >0
+>>>>>>>>>>>>46 ubyte <32
+>>>>>>>>>>>>>46 ubyte >0
+#!:mime application/x-mdx
+>>>>>>>>>>>>>>0 use xbase-type
+>>>>>>>>>>>>>>0 ubyte x \b MDX
+>>>>>>>>>>>>>>1 ubyte x \b, creation-date
+>>>>>>>>>>>>>>1 use xbase-date
+>>>>>>>>>>>>>>44 ubyte x \b, update-date
+>>>>>>>>>>>>>>44 use xbase-date
+# No.of tags in use (1,2,5,12)
+>>>>>>>>>>>>>>28 uleshort x \b, %d
+# No. of entries in tag (0x30)
+>>>>>>>>>>>>>>25 ubyte x \b/%d tags
+# Length of tag
+>>>>>>>>>>>>>>26 ubyte x * %d
+# 1st tag name_
+>>>>>>>>>>>>>548 string x \b, 1st tag "%.11s"
+# 2nd tag name
+#>>>>>>>>>>>>(26.b+548) string x \b, 2nd tag "%.11s"
+#
+# Print the xBase names of different version variants
+0 name xbase-type
+>0 ubyte <2
+# 1 < version
+>0 ubyte >1
+>>0 ubyte 0x02 FoxBase
+!:mime application/x-dbf
+# like: ACCESS.DBF USER.DBF dbase3date.dbf mitarbei.dbf produkte.dbf umlaut-test-v2.dbf
+# FoxBase+/dBaseIII+, no memo
+>>0 ubyte 0x03 FoxBase+/dBase III
+!:mime application/x-dbf
+# like: 92DATA.DBF MSCATLOG.DBF SYLLABI2.DBF SYLLABUS.DBF T4.DBF Teleadr.dbf us_city.dbf
+# dBASE IV no memo file
+>>0 ubyte 0x04 dBase IV
+!:mime application/x-dbf
+# like: Quattro-test11.dbf umlaut-test-v4.dbf
+# dBASE V no memo file
+>>0 ubyte 0x05 dBase V
+!:mime application/x-dbf
+# like: dbase4double.dbf Quattro-test2.dbf umlaut-test7.dbf
+!:ext dbf
+# probably Apollo Database Server 9.7? xBase (0x6)
+>>0 ubyte 0x06 Apollo
+!:mime application/x-dbf
+# like: ALIAS.DBF CRYPT.DBF PROCS.DBF USERS.DBF
+# https://docs.microsoft.com/en-us/previous-versions/visualstudio/foxpro/st4a0s68(v=vs.80)
+>>0 ubyte 0x2F FoxBase+/Dbase III plus, no memo
+!:mime application/x-dbf
+# no example
+>>0 ubyte 0x30 Visual FoxPro
+!:mime application/x-dbf
+# like: 26FRX.DBF 30DBC.DBF 30DBCPRO.DBF BEHINDSC.DBF USER_LEV.DBF
+# Microsoft Visual FoxPro Database Container File like: FOXPRO-DB-TEST.DBC TESTDATA.DBC TASTRADE.DBC
+>>0 ubyte 0x31 Visual FoxPro, autoincrement
+!:mime application/x-dbf
+# like: AI_Table.DBF dbase_31.dbf w_cityFoxpro.dbf
+# Visual FoxPro, with field type Varchar or Varbinary
+>>0 ubyte 0x32 Visual FoxPro, with field type Varchar
+!:mime application/x-dbf
+# like: dbase_32.dbf
+# dBASE IV SQL, no memo;dbv memo var size (Flagship)
+>>0 ubyte 0x43 dBase IV, with SQL table
+!:mime application/x-dbf
+# like: ASSEMBLY.DBF INVENTRY.DBF STAFF.DBF
+# https://docs.microsoft.com/en-us/previous-versions/visualstudio/foxpro/st4a0s68(v=vs.80)
+>>0 ubyte 0x62 dBase IV, with SQL table
+#!:mime application/x-dbf
+# no example
+# dBASE IV, with memo!!
+>>0 ubyte 0x7b dBase IV, with memo
+!:mime application/x-dbf
+# like: test3memo.DBF dbase5.DBF
+# https://docs.microsoft.com/en-us/previous-versions/visualstudio/foxpro/st4a0s68(v=vs.80)
+>>0 ubyte 0x82 dBase IV, with SQL system
+#!:mime application/x-dbf
+# no example
+# FoxBase+/dBaseIII+ with memo .DBT!
+>>0 ubyte 0x83 FoxBase+/dBase III, with memo .DBT
+!:mime application/x-dbf
+# like: T2.DBF t3.DBF biblio.dbf dbase_83.dbf dbase3dbt0_4.dbf fsadress.dbf stop.dbf
+# VISUAL OBJECTS (first 1.0 versions) for the Dbase III files (NTX clipper driver); memo file
+>>0 ubyte 0x87 VISUAL OBJECTS, with memo file
+!:mime application/x-dbf
+# like: ACCESS.DBF dbase3date.dbf dbase3float.dbf holdings.dbf mitarbei.dbf
+# https://docs.microsoft.com/en-us/previous-versions/visualstudio/foxpro/st4a0s68(v=vs.80)
+>>0 ubyte 0x8A FoxBase+/dBase III, with memo .DBT
+#!:mime application/x-dbf
+# no example
+# dBASE IV with memo!
+>>0 ubyte 0x8B dBase IV, with memo .DBT
+!:mime application/x-dbf
+# like: animals.dbf archive.dbf callin.dbf dbase_8b.dbf phnebook.dbf t6.dbf
+# dBase IV with SQL Table,no memo?
+>>0 ubyte 0x8E dBase IV, with SQL table
+!:mime application/x-dbf
+# like: dbase5.DBF test3memo.DBF test-memo.DBF
+# .dbv and .dbt memo (Flagship)?
+>>0 ubyte 0xB3 Flagship
+!:mime application/x-dbf
+# no example
+# https://docs.microsoft.com/en-us/previous-versions/visualstudio/foxpro/st4a0s68(v=vs.80)
+>>0 ubyte 0xCA dBase IV with memo .DBT
+#!:mime application/x-dbf
+# no example
+# dBASE IV with SQL table, with memo .DBT
+>>0 ubyte 0xCB dBase IV with SQL table, with memo .DBT
+!:mime application/x-dbf
+# like: dbase5.DBF test3memo.DBF test-memo.DBF
+# HiPer-Six format;Clipper SIX, with SMT memo file
+>>0 ubyte 0xE5 Clipper SIX with memo
+!:mime application/x-dbf
+# like: dbase5.DBF test3memo.DBF test-memo.DBF testClipper.dbf DATA.DBF
+# https://docs.microsoft.com/en-us/previous-versions/visualstudio/foxpro/st4a0s68(v=vs.80)
+>>0 ubyte 0xF4 dBase IV, with SQL table, with memo
+#!:mime application/x-dbf
+# no example
+>>0 ubyte 0xF5 FoxPro with memo
+!:mime application/x-dbf
+# like: CUSTOMER.DBF FOXUSER1.DBF Invoice.DBF NG.DBF OBJSAMP.DBF dbase_f5.dbf kunde.dbf
+# probably Apollo Database Server 9.7 with SQL and memo mask? xBase (0xF6)
+>>0 ubyte 0xF6 Apollo, with SQL table with memo
+!:mime application/x-dbf
+# like: SCRIPTS.DBF
+# https://docs.microsoft.com/en-us/previous-versions/visualstudio/foxpro/st4a0s68(v=vs.80)
+#>>0 ubyte 0xFA FoxPro 2.x, with memo
+#!:mime application/x-dbf
+# no example
+# unknown version (should not happen)
+>>0 default x xBase
+!:mime application/x-dbf
+>>>0 ubyte x (%#x)
+# flags in version byte
+# DBT flag (with dBASE III memo .DBT)!!
+# >>0 ubyte&0x80 >0 DBT_FLAG=%x
+# memo flag ??
+# >>0 ubyte&0x08 >0 MEMO_FLAG=%x
+# SQL flag ??
+# >>0 ubyte&0x70 >0 SQL_FLAG=%x
+# test and print the date of xBase .DBF .MDX
+0 name xbase-date
+# inspect YYMMDD , where 1<= MM <= 12 and 1<= DD <= 31
+>0 ubelong x
+>1 ubyte <13
+>>1 ubyte >0
+>>>2 ubyte >0
+>>>>2 ubyte <32
+>>>>>0 ubyte x
+# YY is interpreted as 20YY or 19YY
+>>>>>>0 ubyte <100 \b %.2d
+# YY is interpreted 1900+YY; TODO: display yy or 20yy instead 1YY
+>>>>>>0 ubyte >99 \b %d
+>>>>>1 ubyte x \b-%d
+>>>>>2 ubyte x \b-%d
+
+# dBase memo files .DBT or .FPT
+# https://msdn.microsoft.com/en-us/library/8599s21w(v=vs.80).aspx
+16 ubyte <4
+>16 ubyte !2
+>>16 ubyte !1
+# next free block index is positive
+>>>0 ulelong >0
+# skip many JPG. ZIP, BZ2 by test for reserved bytes NULL , 0|2 , 0|1 , low byte of block size
+>>>>17 ubelong&0xFFfdFEff 0x00000000
+# skip many RAR by test for low byte 0 ,high byte 0|2|even of block size, 0|a|e|d7 , 0|64h
+>>>>>20 ubelong&0xFF01209B 0x00000000
+# dBASE III
+>>>>>>16 ubyte 3
+# skip with invalid "low" 1st item "\0\0\0\0" StateRepository-Deployment.srd-shm "\001\010\0\0" gcry_cast5.mod
+>>>>>>>512 ubyte >040
+# skip with valid 1st item "rintf" keylayouts.mod
+# by looking for valid terminating character Ctrl-Z like in test.dbt
+>>>>>>>>513 search/3308 \032
+# skip GRUB plan9.mod with invalid second terminating character 007
+# by checking second terminating character Ctrl-Z like in test.dbt
+>>>>>>>>>&0 ubyte 032
+# dBASE III DBT with two Ctr-Z terminating characters
+>>>>>>>>>>0 use dbase3-memo-print
+# second terminating character \0 like in dbase-memo.dbt or GRUB nativedisk.mod
+>>>>>>>>>&0 ubyte 0
+# skip GRUB nativedisk.mod with grub_mod_init\0grub_mod_fini\0grub_fs_autoload_hook\0
+>>>>>>>>>>0x1ad string !grub_mod_init
+# like dbase-memo.dbt
+>>>>>>>>>>>0 use dbase3-memo-print
+# dBASE III DBT without version, dBASE IV DBT , FoxPro FPT , or many ZIP , DBF garbage
+>>>>>>16 ubyte 0
+# unusual dBASE III DBT like angest.dbt, dBASE IV DBT with block size 0 , FoxPro FPT , or garbage PCX DBF
+>>>>>>>20 uleshort 0
+# FoxPro FPT , unusual dBASE III DBT like biblio.dbt or garbage
+>>>>>>>>8 ulong =0
+>>>>>>>>>6 ubeshort >0
+# skip emacs.PIF
+>>>>>>>>>>4 ushort 0
+# check for valid FoxPro field type
+>>>>>>>>>>>512 ubelong <3
+# skip LXMDCLN4.OUT LXMDCLN6.OUT LXMDALG6.OUT with invalid blocksize 170=AAh
+>>>>>>>>>>>>6 ubeshort&0x002f 0
+>>>>>>>>>>>>>0 use foxpro-memo-print
+# dBASE III DBT , garbage
+# skip WORD1XW.DOC with improbably high free block index
+>>>>>>>>>0 ulelong <0x400000
+# skip WinStore.App.exe by looking for printable 2nd character of 1st memo item
+>>>>>>>>>>513 ubyte >037
+# skip DOS executables CPQ0TD.DRV E30ODI.COM IBM0MONO.DRV by looking for printable 1st character of 1st memo item
+>>>>>>>>>>>512 ubyte >037
+# skip few (14/758) Microsoft Event Trace Logs (boot_BASE+CSWITCH_1.etl DlTel-Merge.etl UpdateUx.006.etl) with invalid "high" 1st item \377\377
+>>>>>>>>>>>>512 ubyte <0377
+# skip some Commodore 64 Art Studio (Deep_Strike.aas dragon's_lair_ii.aas), some Atari DEGAS Elite bitmap (ELEPHANT.PC3 ST.PC2)
+# some probably old GRUB modules (part_sun.mod) and virtual-boy-wario-land.vb.
+# by looking for valid terminating character Ctrl-Z
+>>>>>>>>>>>>>513 search/523 \032
+# Atari DEGAS bitmap ST.PC2 with 0370 as second terminating character
+#>>>>>>>>>>>>>>&0 ubyte x 2ND_CHAR_IS=%o
+# dBASE III DBT with two Ctr-Z terminating characters like dbase3dbt0_1.dbt dbase_83.dbt
+>>>>>>>>>>>>>>&0 ubyte 032
+>>>>>>>>>>>>>>>0 use dbase3-memo-print
+# second terminating character \0 like in pcidump.mod or fsadress.dbt umlaut-dbf-cmd.dbt
+>>>>>>>>>>>>>>&0 ubyte 0
+# look for old GRUB module pcidump.mod with specific content "pcidump\0Show raw dump of the PCI configuration space"
+>>>>>>>>>>>>>>>514 search/0x11E pcidump\0Show
+# dBASE III DBT with Ctr-Z + \0 terminating characters like fsadress.dbt
+>>>>>>>>>>>>>>>514 default x
+# unusual dBASE III DBT like fsadress.dbt umlaut-dbf-cmd.dbt
+>>>>>>>>>>>>>>>>0 use dbase3-memo-print
+# dBASE III DBT like angest.dbt, or garbage PCX DBF
+>>>>>>>>8 ubelong !0
+# skip PCX and some DBF by test for for reserved NULL bytes
+>>>>>>>>>510 ubeshort 0
+# skip bad symples with improbably high free block index above 2 GiB file limit
+>>>>>>>>>>0 ulelong <0x400000
+# skip AI070GEP.EPS by printable 1st character of 1st memo item
+>>>>>>>>>>>512 ubyte >037
+# skip some Microsoft Visual C, OMF library like: BZ2.LIB WATTCPWL.LIB ZLIB.LIB
+>>>>>>>>>>>>512 ubyte <0200
+# skip gluon-ffhat-1.0-tp-link-tl-wr1043n-nd-v2-sysupgrade.bin by printable 2nd character
+>>>>>>>>>>>>>513 ubyte >037
+# skip few (8/758) Microsoft Event Trace Logs (WBEngine.3.etl Wifi.etl) with valid 1st item like
+# "9600.20369.amd64fre.winblue_ltsb_escrow.220427-1727"
+# "9600.19846.amd64fre.winblue_ltsb_escrow.200923-1735"
+# "10586.494.amd64fre.th2_release_sec.160630-1736"
+# by looking for valid terminating character Ctrl-Z
+>>>>>>>>>>>>>>513 search/0x11E \032
+# followed by second character Ctrl-Z implies typical DBT
+>>>>>>>>>>>>>>>&0 ubyte 032
+# examples like: angest.dbt
+>>>>>>>>>>>>>>>>0 use dbase3-memo-print
+>>>>>>>>>>>>>>>&0 ubyte 0
+# no example found here with terminating sequence CTRL-Z + \0
+>>>>>>>>>>>>>>>>0 use dbase3-memo-print
+# dBASE IV DBT with positive block size
+>>>>>>>20 uleshort >0
+# dBASE IV DBT with valid block length like 512, 1024
+# multiple of 2 in between 16 and 16 K ,implies upper and lower bits are zero
+# skip also 3600h 3E00h size
+>>>>>>>>20 uleshort&0xE00f 0
+>>>>>>>>>0 use dbase4-memo-print
+
+# Print the information of dBase III DBT memo file
+0 name dbase3-memo-print
+>0 ubyte x dBase III DBT
+!:mime application/x-dbt
+!:ext dbt
+# instead 3 as version number 0 for unusual examples like biblio.dbt
+>16 ubyte !3 \b, version number %u
+# Number of next available block for appending data
+#>0 lelong =0 \b, next free block index %u
+>0 lelong !0 \b, next free block index %u
+# no positive block length
+#>20 uleshort =0 \b, block length %u
+>20 uleshort !0 \b, block length %u
+# dBase III memo field terminated often by \032\032
+# like: "WHAT IS XBASE" test.dbt "Borges, Malte" biblio.dbt "First memo\032\032" T2.DBT
+>512 string >\0 \b, 1st item "%s"
+# For DEBUGGING
+#>512 ubelong x \b, 1ST item %#8.8x
+#>513 search/0x225 \032 FOUND_TERMINATOR
+#>>&0 ubyte 032 2xCTRL_Z
+# fsadress.dbt has 1 Ctrl-Z terminator followed by nil byte
+#>>&0 ubyte 0 1xCTRL_Z
+
+# https://www.clicketyclick.dk/databases/xbase/format/dbt.html
+# Print the information of dBase IV DBT memo file
+0 name dbase4-memo-print
+>0 lelong x dBase IV DBT
+!:mime application/x-dbt
+!:ext dbt
+# 8 character shorted main name of corresponding dBASE IV DBF file
+>8 ubelong >0x20000000
+# skip unusual like for angest.dbt
+>>20 uleshort >0
+>>>8 string >\0 \b of %-.8s.DBF
+# value 0 implies 512 as size
+#>4 ulelong =0 \b, blocks size %u
+# size of blocks not reliable like 0x2020204C in angest.dbt
+>4 ulelong !0
+>>4 ulelong&0x0000003f 0 \b, blocks size %u
+# dBase IV DBT with positive block length (found 512 , 1024)
+>20 uleshort >0 \b, block length %u
+# next available block
+#>0 lelong =0 \b, next free block index %u
+>0 lelong !0 \b, next free block index %u
+>20 uleshort >0
+>>(20.s) ubelong x
+>>>&-4 use dbase4-memofield-print
+# unusual dBase IV DBT without block length (implies 512 as length)
+>20 uleshort =0
+>>512 ubelong x
+>>>&-4 use dbase4-memofield-print
+# Print the information of dBase IV memo field
+0 name dbase4-memofield-print
+# free dBase IV memo field
+>0 ubelong !0xFFFF0800
+>>0 lelong x \b, next free block %u
+>>4 lelong x \b, next used block %u
+# used dBase IV memo field
+>0 ubelong =0xFFFF0800
+# length of memo field
+>>4 lelong x \b, field length %d
+>>>8 string >\0 \b, 1st used item "%s"
+# http://www.dbfree.org/webdocs/1-documentation/0018-developers_stuff_(advanced)/os_related_stuff/xbase_file_format.htm
+# Print the information of FoxPro FPT memo file
+0 name foxpro-memo-print
+>0 belong x FoxPro FPT
+!:mime application/x-fpt
+!:ext fpt
+# Size of blocks for FoxPro ( 64,256 ); probably a multiple of two
+>6 ubeshort x \b, blocks size %u
+# next available block
+#>0 belong =0 \b, next free block index %u
+>0 belong !0 \b, next free block index %u
+# field type ( 0~picture, 1~memo, 2~object )
+>512 ubelong <3 \b, field type %u
+# length of memo field
+>512 ubelong 1
+>>516 belong >0 \b, field length %d
+>>>520 string >\0 \b, 1st item "%s"
+
+# Summary: DBASE Compound Index file *.CDX and FoxPro index *.IDX
+# From: Joerg Jenderek
+# URL: https://www.clicketyclick.dk/databases/xbase/format/cdx.html
+# https://www.clicketyclick.dk/databases/xbase/format/idx.html
+# https://www.clicketyclick.dk/databases/xbase/format/idx_comp.html
+# Reference: https://mark0.net/download/triddefs_xml.7z/defs/s/sybase-ianywhere-cdx.trid.xml
+# https://mark0.net/download/triddefs_xml.7z/defs/c/cdx-vfp7.trid.xml
+# like: kunde.cdx
+0 ulelong 0x1C00
+>0 use xbase-index
+# like: SYLLABI2.CDX SYLLABUS.CDX
+0 ulelong 0x0800
+>0 use xbase-index
+# often in xBase index pointer to root node 400h
+0 ulelong 0x0400
+# skip most Maple help database *.hdb with version tag handled by ./maple
+>1028 string !version
+# skip Maple help database hsum.hdb checking for valid reserved area
+>>492 quad =0
+# skip remaining Maple help database *.hdb by checking key length
+#>>>12 uleshort !0x000F KEY_LENGTHVALID
+>>>0 use xbase-index
+# display information about dBase/FoxPro index
+0 name xbase-index
+>0 ulelong x xBase
+!:mime application/x-dbase-index
+>14 ubyte &0x40 compound index
+# DCX for FoxPro database index like: TESTDATA.DCX
+!:ext cdx/dcx
+>14 ubyte ^0x40 index
+# only 1 example like: TEST.IDX
+!:ext idx
+# pointer to root node like: 1C00h 800h often 400h
+>0 ulelong !0x400 \b, root pointer %#x
+# Pointer to free node list: often 0 but -1 if not present
+>4 ulelong !0 \b, free node pointer %#x
+# MAYBE number of pages in file (Foxbase, FoxPro 1.x) or
+# http://www.foxpert.com/foxpro/knowlbits/files/knowlbits_200708_1.HTM
+# Whenever Visual FoxPro updates the index file it increments this reserved field
+# Reserved for internal use like: 02000000h 03000000h 460c0000h 780f0000h 89000000h 9fdc0100h often 0
+>8 ulelong !0 \b, reserved counter %#x
+# length of key like: mostly 000Ah 0028h (TEST.IDX)
+>12 uleshort !0x000A \b, key length %#x
+# index options like: 24h E0h E8h
+# 1~a unique index 8~index has FOR clause 32~compact index format 64~compound index header
+# 16~Bit vector (SoftC) 128~Structure index (FoxPro)
+>14 ubyte x \b, index options (%#x
+>14 ubyte &0x01 \b, unique
+>14 ubyte &0x08 \b, has FOR clause
+>14 ubyte &0x10 \b, bit vector (SoftC)
+>14 ubyte &0x20 \b, compact format
+#>14 ubyte &0x40 \b, compound header
+>14 ubyte &0x80 \b, structure
+>14 ubyte x \b)
+# WHAT EXACTLY IS THAT? index signature like: 0 (sybase-ianywhere-cdx.trid.xml) 1 (cdx-vfp7.trid.xml)
+>15 ubyte !0 \b, index signature %u
+# reserved area (0-bytes) til about 500, but not for uncompressed Index files *.idx
+>16 quad !0 \b, at 16 reserved %#llx
+>492 quad !0 \b, at 492 reserved %#llx
+# for IDX variant
+#>14 ubyte ^0x40 IDX
+# for CDX variant
+>14 ubyte &0x40
+# Ascending or descending: 0~ascending 1~descending
+>>502 uleshort x \b, sort order %u
+# Total expression length (FoxPro 2) like: 0 1
+>>504 uleshort !0 \b, expression length %u
+# FOR expression pool length like: 1
+>>506 uleshort !1 \b, FOR expression pool length %#x
+# reserved for internal use like: 0
+>>508 uleshort !0 \b, at 0x508 reserved %#x
+# Key expression pool length like: 1
+>>510 uleshort !1 \b, key expression pool length %#x
+# 512 - 1023 Key & FOR expression pool (uncompiled)
+>>512 quad !0 \b, key expression pool %#llx
+#>>520 quad !0 \b, key expression pool %#llx
+
+# Summary: dBASE IV Printer Form *.PRF
+# From: Joerg Jenderek
+# URL: https://en.wikipedia.org/wiki/.dbf#Other_file_types_found_in_dBASE
+# Reference: https://mark0.net/download/triddefs_xml.7z/defs/p/prf-dbase.trid.xml
+0 ubeshort 0x0400
+# skip some Xbase Index files *.ndx and Infocom (Z-machine 4) *.z4 handled by ./adventure
+# by looking for valid printer driver name extension
+>0x58 search/8 .PR2
+>>0 use xbase-prf
+# display information of dbase print form like printer driver *.PR2
+0 name xbase-prf dBase Printer Form
+!:mime application/x-dbase-prf
+!:ext prf
+# MAYBE version? like: 4~DBASE IV
+#>0 ubyte x \b, version %u
+# MAYBE flag like: 1~with output file name 0~not
+#>2 ubyte !0 \b, flag %u
+# optional printer text output file name like E:\DBASE\IV\T6.txt
+>3 string >\0 \b, output file %s
+# probably padding with nils til 0x53
+#>0x48 uquad !0 \b, at 0x48 padding %#llx
+# dBASE IV printer driver name like: Generic.PR2 ASCII.PR2
+>0x56 string >\0 \b, using printer driver %s
+# 2 is probably last character of previous dBASE printer driver name
+#>0x60 ubyte !0x32 \b, at 0x60 %#x
+# probably padding with nils til 0xa8
+#>0x61 uquad !0 \b, at 0x61 padding %#llx
+# unknown 0x03020300 0x03020100 at 0xa8
+>0xa8 ubelong x \b, at 0xa8 unknown %#8.8x
+# probably padding with nils til 0x2aa
+#>0x2a0 uquad !0 \b, at 0x2a0 padding %#llx
+# unknown 0x100ff7f01000001 at 0x2AB
+>0x2ab ubequad !0x100ff7f01000001 \b, at 0x2ab unknown %#llx
+# unknown 0x0042 at 0x2b3
+>0x2b3 ubeshort !0x0042 \b, at 0x2b3 unknown %#4.4x
+# unknown last 4 bytes at 0x2b6 like: 0 0x23
+>0x2b6 ubelong !0 \b, at 0x2b6 unknown %#8.8x
+
+# TODO:
+# DBASE index file *.NDX
+# dBASE compiled Format *.FMO
+# FoxPro Database memo file *.DCT
+# FoxPro Forms Memo *.SCT
+# FoxPro Generated Menu Program *.MPR
+# FoxPro Report *.FRX
+# FoxPro Report Memo *.FRT
+# Foxpro Generated Screen Program *.SPR
+# Foxpro memo *.PJT
+## End of XBase database stuff
+
+# MS Access database
+4 string Standard\ Jet\ DB Microsoft Access Database
+!:mime application/x-msaccess
+4 string Standard\ ACE\ DB Microsoft Access Database
+!:mime application/x-msaccess
+
+# From: Joerg Jenderek
+# URL: http://fileformats.archiveteam.org/wiki/Extensible_Storage_Engine
+# Reference: https://github.com/libyal/libesedb/archive/master.zip
+# libesedb-master/documentation/
+# Extensible Storage Engine (ESE) Database File (EDB) format.asciidoc
+# Note: also known as "JET Blue". Used by numerous Windows components such as
+# Windows Search, Mail, Exchange and Active Directory.
+4 ubelong 0xefcdab89
+# unknown1
+>132 ubelong 0 Extensible storage engine
+!:mime application/x-ms-ese
+# file_type 0~database 1~stream
+>>12 ulelong 0 DataBase
+# Security DataBase (sdb)
+!:ext edb/sdb
+>>12 ulelong 1 STreaMing
+!:ext stm
+# format_version 620h
+>>8 uleshort x \b, version %#x
+>>10 uleshort >0 revision %#4.4x
+>>0 ubelong x \b, checksum %#8.8x
+# Page size 4096 8192 32768
+>>236 ulequad x \b, page size %lld
+# database_state
+>>52 ulelong 1 \b, JustCreated
+>>52 ulelong 2 \b, DirtyShutdown
+#>>52 ulelong 3 \b, CleanShutdown
+>>52 ulelong 4 \b, BeingConverted
+>>52 ulelong 5 \b, ForceDetach
+# Windows NT major version when the databases indexes were updated.
+>>216 ulelong x \b, Windows version %d
+# Windows NT minor version
+>>220 ulelong x \b.%d
+
+# From: Joerg Jenderek
+# URL: https://forensicswiki.org/wiki/Windows_Application_Compatibility
+# Note: files contain application compatibility fixes, application compatibility modes and application help messages.
+8 string sdbf
+>7 ubyte 0
+# TAG_TYPE_LIST+TAG_INDEXES
+>>12 uleshort 0x7802 Windows application compatibility Shim DataBase
+# version? 2 3
+#>>>0 ulelong x \b, version %d
+!:mime application/x-ms-sdb
+!:ext sdb
+
+# TDB database from Samba et al - Martin Pool <mbp@samba.org>
+0 string TDB\ file TDB database
+>32 lelong 0x2601196D version 6, little-endian
+>>36 lelong x hash size %d bytes
+
+# SE Linux policy database
+0 lelong 0xf97cff8c SE Linux policy
+>16 lelong x v%d
+>20 lelong 1 MLS
+>24 lelong x %d symbols
+>28 lelong x %d ocons
+
+# ICE authority file data (Wolfram Kleff)
+2 string ICE ICE authority data
+
+# X11 Xauthority file (Wolfram Kleff)
+10 string MIT-MAGIC-COOKIE-1 X11 Xauthority data
+11 string MIT-MAGIC-COOKIE-1 X11 Xauthority data
+12 string MIT-MAGIC-COOKIE-1 X11 Xauthority data
+13 string MIT-MAGIC-COOKIE-1 X11 Xauthority data
+14 string MIT-MAGIC-COOKIE-1 X11 Xauthority data
+15 string MIT-MAGIC-COOKIE-1 X11 Xauthority data
+16 string MIT-MAGIC-COOKIE-1 X11 Xauthority data
+17 string MIT-MAGIC-COOKIE-1 X11 Xauthority data
+18 string MIT-MAGIC-COOKIE-1 X11 Xauthority data
+
+# From: Maxime Henrion <mux@FreeBSD.org>
+# PostgreSQL's custom dump format, Maxime Henrion <mux@FreeBSD.org>
+0 string PGDMP PostgreSQL custom database dump
+>5 byte x - v%d
+>6 byte x \b.%d
+>5 beshort <0x101 \b-0
+>5 beshort >0x100
+>>7 byte x \b-%d
+
+# Type: Advanced Data Format (ADF) database
+# URL: https://www.grc.nasa.gov/WWW/cgns/adf/
+# From: Nicolas Chauvat <nicolas.chauvat@logilab.fr>
+0 string @(#)ADF\ Database CGNS Advanced Data Format
+
+# Tokyo Cabinet magic data
+# http://tokyocabinet.sourceforge.net/index.html
+0 string ToKyO\ CaBiNeT\n Tokyo Cabinet
+>14 string x \b (%s)
+>32 byte 0 \b, Hash
+!:mime application/x-tokyocabinet-hash
+>32 byte 1 \b, B+ tree
+!:mime application/x-tokyocabinet-btree
+>32 byte 2 \b, Fixed-length
+!:mime application/x-tokyocabinet-fixed
+>32 byte 3 \b, Table
+!:mime application/x-tokyocabinet-table
+>33 byte &1 \b, [open]
+>33 byte &2 \b, [fatal]
+>34 byte x \b, apow=%d
+>35 byte x \b, fpow=%d
+>36 byte &0x01 \b, [large]
+>36 byte &0x02 \b, [deflate]
+>36 byte &0x04 \b, [bzip]
+>36 byte &0x08 \b, [tcbs]
+>36 byte &0x10 \b, [excodec]
+>40 lequad x \b, bnum=%lld
+>48 lequad x \b, rnum=%lld
+>56 lequad x \b, fsiz=%lld
+
+# Type: QDBM Quick Database Manager
+# From: Benoit Sibaud <bsibaud@april.org>
+0 string \\[depot\\]\n\f Quick Database Manager, little endian
+0 string \\[DEPOT\\]\n\f Quick Database Manager, big endian
+
+# Type: TokyoCabinet database
+# URL: http://tokyocabinet.sourceforge.net/
+# From: Benoit Sibaud <bsibaud@april.org>
+0 string ToKyO\ CaBiNeT\n TokyoCabinet database
+>14 string x (version %s)
+
+# From: Stephane Blondon https://www.yaal.fr
+# Database file for Zope (done by FileStorage)
+0 string FS21 Zope Object Database File Storage v3 (data)
+0 string FS30 Zope Object Database File Storage v4 (data)
+
+# Cache file for the database of Zope (done by ClientStorage)
+0 string ZEC3 Zope Object Database Client Cache File (data)
+
+# IDA (Interactive Disassembler) database
+0 string IDA1 IDA (Interactive Disassembler) database
+
+# Hopper (reverse engineering tool) https://www.hopperapp.com/
+0 string hopperdb Hopper database
+
+# URL: https://en.wikipedia.org/wiki/Panorama_(database_engine)
+# Reference: http://www.provue.com/Panorama/
+# From: Joerg Jenderek
+# NOTE: test only versions 4 and 6.0 with Windows
+# length of Panorama database name
+5 ubyte >0
+# look after database name for "some" null bits
+>(5.B+7) ubelong&0xF3ffF000 0
+# look for first keyword
+>>&1 search/2 DESIGN Panorama database
+#!:mime application/x-panorama-database
+!:apple KASXZEPD
+!:ext pan
+# database name
+>>>5 pstring x \b, "%s"
+
+#
+#
+# askSam Database by Stefan A. Haubenthal <polluks@web.de>
+0 string askw40\0 askSam DB
+
+#
+#
+# MUIbase Database Tool by Stefan A. Haubenthal <polluks@web.de>
+0 string MBSTV\040 MUIbase DB
+>6 string x version %s
+
+#
+# CDB database
+0 string NBCDB\012 NetBSD Constant Database
+>7 byte x \b, version %d
+>8 string x \b, for '%s'
+>24 lelong x \b, datasize %d
+>28 lelong x \b, entries %d
+>32 lelong x \b, index %d
+>36 lelong x \b, seed %#x
+
+#
+# Redis RDB - https://redis.io/topics/persistence
+0 string REDIS Redis RDB file,
+>5 regex [0-9][0-9][0-9][0-9] version %s
+
+# Mork database.
+# Used by older versions of Mozilla Suite and Firefox,
+# and current versions of Thunderbird.
+# From: David Korth <gerbilsoft@gerbilsoft.com>
+0 string //\ <!--\ <mdb:mork:z\ v=" Mozilla Mork database
+>23 string x \b, version %.3s
+
+# URL: https://en.wikipedia.org/wiki/Management_Information_Format
+# Reference: https://www.dmtf.org/sites/default/files/standards/documents/DSP0005.pdf
+# From: Joerg Jenderek
+# Note: only tested with monitor asset reports of Dell Display Manager
+# skip start like Language=fr|CA|iso8859-1
+0 search/27/C Start\040Component DMI Management Information Format
+#!:mime text/plain
+!:mime text/x-dmtf-mif
+!:ext mif
+