本文介绍了我按照“代码注入运行Linux应用程序”中的步骤进行操作。但它失败了,我无法解决它!的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我做了同样的事情,我有1个应用程序A,每7秒打印一个衬垫,另一个代码具有另一个打印,injection.o的功能。当我到达打开我的目标文件injection.o的步骤并尝试将其映射到内存中时,我得到了几个错误。



当我第一次打开时(injection.o,2)它总是返回-1。然后我做了调用open(injection.o,O_RDWR)。然后它返回一个fd = 3.



然后当我做mmap(1,2504,1 | 2 | 4,1,3,0)时,2504是我的对象文件大小,它再次只返回-1。



我不知道该怎么做。任何人都可以帮助我吗?



Br



Hung

I have done the same thing I have 1 application A that just prints a one liner each 7 seconds and another code that has a function with another print, injection.o. When I get to the step to open my object file injection.o and trying to map it in the memory I get several errors.

When I first do "call open("injection.o", 2)" it always return -1. I then did "call open("injection.o", "O_RDWR")". Then it returned a fd = 3.

When I then do mmap(1, 2504, 1|2|4, 1, 3, 0), 2504 is my objects file size, it again only returned -1.

I have no clue on what to do. Can anyone help me?

Br

Hung

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10-30 07:16