我如何逆向工程已经用perlcc编译的Perl程序？ [英] How can I reverse-engineer a Perl program that has been compiled with perlcc?

问题描述

我继承了一个在Unix上有一个编译的perl脚本的环境。是否可以反编译，反向工程（无论什么术语），并从编译的目标代码获取源代码？

I inherited an environment that has a "compiled" perl script on Unix. Is it possible to de-compile, reverse engineer (whatever the term is) it, and obtain the source code from the compiled object code ?

可能不可能，但是认为我会问，而不是假设。

Might not be possible, but thought I'd ask rather than assume.

谢谢，
-凯文。

Thanks, -Kevin.

推荐答案

哦我的！

如果且只有它通过 perlcc -B ，您可以 然后以与B :: Deparse相同的方式重新编译。你会得到所有的源没有优化的方式。它可能看起来有点有趣，但它将是一个等价的程序。

If and only if it was compiled into executable byte code via perlcc -B, you could then uncompile it the same way B::Deparse does. You'd get back all of the source that wasn't optimized away that way. It might look a bit funny, but it would be an equivalent program.

但是，如果它完全编译成C代码，然后汇编到汇编语言和机器语言，并运行 ld 一个合适的 a.out 文件，你不能做任何类似的事情。这就像试图反汇编 / bin / cat 。

However, if it was fully compiled into C code and thence to assembler and machine language and run through ld for a proper a.out file, you aren't going to be able to do anything like that. It'd be like trying to disassemble /bin/cat.

好吧，你可以拆开它，但是没有什么喜乐。即使您可以取出原始的生成的C代码 - 您不能 - 它几乎不可用。

So ok, you could disassemble it, but there's no joy to be had there. Even if you could get out the original, generated C code — which you cannot — it would be virtually unusable.

我想你可能会运行

对不起。

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