看不懂自定义 magic 文件的规则,求指点. - V2EX
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ruiyi1994
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看不懂自定义 magic 文件的规则,求指点.

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  •   ruiyi1994 2021-07-21 11:16:51 +08:00 1740 次点击
    这是一个创建于 1548 天前的主题,其中的信息可能已经有所发展或是发生改变。

    对 file 命令识别文件类型感兴趣,查了下资料, 发现是有系统内置了 magic 文件,相当于数据库,定义了一些通过文件头的内容来识别文件类型的规则, 不过苦于里面的一些规则看不懂, 还望指点. 就是图片上的 *0x18, >*0x3c , >+54

    0 short 0x5AD4 DOS executable *0x18 Short 0x40 >*0x3c Short 0x6584C OS/2 linear executable >*0x3C Short 0x454e >+54byte 1 OS/2 format >+54byte 2 Windows format 0 short 0xFDF0 DOS library 0 string AH Halo bitmapped font file 0 short 0x601A Atara ST contiguous executable 

    1 条回复    2021-07-21 16:23:47 +08:00
    bigfei
        1
    bigfei  
       2021-07-21 16:23:47 +08:00
    man 5 magic
    有详细的 manual:
    https://linux.die.net/man/5/magic
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