Subject: PR/410: pandrew: Add bitcoin and leveldb support
Origin: FILE5_44-5-g813b3304 <https://github.com/file/file/commit/FILE5_44-5-g813b3304>
Upstream-Author: Christos Zoulas <christos@zoulas.com>
Date: Mon Dec 26 19:20:56 2022 +0000

--- a/magic/Magdir/crypto
+++ b/magic/Magdir/crypto
@@ -3,3 +3,29 @@
 # $File: crypto,v 1.2 2021/03/27 20:15:53 christos Exp $
 # crypto:  file(1) magic for crypto formats
 #
+# Bitcoin block files
+0		lelong			0xD9B4BEF9	Bitcoin
+>(4.l+40)	lelong			0xD9B4BEF9	reverse block
+>>4		lelong			x		\b, size %u
+# normal block below
+>0		default			x		block
+>>4		lelong			x		\b, size %u
+>>8		lelong&0xE0000000	0x20000000
+>>>8		lelong			x		\b, BIP9 0x%x
+>>8		lelong&0xE0000000	!0x20000000
+>>>8		lelong			x		\b, version 0x%x
+>>76		ledate			x		\b, %s UTC
+# VarInt counter
+>>88		ubyte			<0xfd		\b, txcount %u
+>>88		ubyte			0xfd
+>>>89		leshort			x		\b, txcount %u
+>>88		ubyte			0xfe
+>>>89		lelong			x		\b, txcount %u
+>>88		ubyte			0xff
+>>>89		lequad			x		\b, txcount %llu
+!:ext	dat
+# option to find more blocks in the file
+#>>(4.l+8)	indirect	x			;
+
+# LevelDB
+-8		lequad		0xdb4775248b80fb57	LevelDB table data