database

来自「UNIX下FILE命令的实现源码」· 代码 · 共 71 行

#------------------------------------------------------------------------------
# database:  file(1) magic for various databases
#
# extracted from header/code files by Graeme Wilford ([e-mail])
#
#
# GDBM magic numbers
#  Will be maintained as part of the GDBM distribution in the future.
#  <[e-mail]>
0	belong	0x13579ace	GNU dbm 1.x or ndbm database, big endian
0	lelong	0x13579ace	GNU dbm 1.x or ndbm database, little endian
0	string	GDBM		GNU dbm 2.x database
#
# 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
>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)