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-rw-r--r--contrib/file/magic/Magdir/database64
1 files changed, 57 insertions, 7 deletions
diff --git a/contrib/file/magic/Magdir/database b/contrib/file/magic/Magdir/database
index ee4b1cb98f9d..03ac4235f735 100644
--- a/contrib/file/magic/Magdir/database
+++ b/contrib/file/magic/Magdir/database
@@ -1,6 +1,6 @@
#------------------------------------------------------------------------------
-# $File: database,v 1.66 2022/02/26 17:42:21 christos Exp $
+# $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)
@@ -387,8 +387,22 @@
>>>>>20 ubelong&0xFF01209B 0x00000000
# dBASE III
>>>>>>16 ubyte 3
-# dBASE III DBT
->>>>>>>0 use dbase3-memo-print
+# 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
@@ -408,8 +422,27 @@
>>>>>>>>>0 ulelong <0x400000
# skip WinStore.App.exe by looking for printable 2nd character of 1st memo item
>>>>>>>>>>513 ubyte >037
-# unusual dBASE III DBT like adressen.dbt
->>>>>>>>>>>0 use dbase3-memo-print
+# 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
@@ -422,7 +455,19 @@
>>>>>>>>>>>>512 ubyte <0200
# skip gluon-ffhat-1.0-tp-link-tl-wr1043n-nd-v2-sysupgrade.bin by printable 2nd character
>>>>>>>>>>>>>513 ubyte >037
->>>>>>>>>>>>>>0 use dbase3-memo-print
+# 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
@@ -444,11 +489,16 @@
# no positive block length
#>20 uleshort =0 \b, block length %u
>20 uleshort !0 \b, block length %u
-# dBase III memo field terminated by \032\032
+# 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