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在C语言中直接执行机器码

2013-02-15 16:57:46| 分类：程序 | 标签： |举报 |字号大中小订阅

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// 机器码：对传入的整型参数进行加一操作，然后返回结果。

unsigned char machineCode[] =

"/xe9/x07/x00/x00/x00/xcc/xcc/xcc/xcc/xcc/xcc/xcc/x55/x8b/xec/x83/xec/x40/x53/x56"

"/x57/x8d/x7d/xc0/xb9/x10/x00/x00/x00/xb8/xcc/xcc/xcc/xcc/xf3/xab/x8b/x45/x08/x83"

"/xc0/x01/x5f/x5e/x5b/x8b/xe5/x5d/xc3";

// 第一种执行方式

void mac_one()

{

int result;

int (*Fun)(int);

Fun = (void*)machineCode;

result = Fun(7);

printf("%d/r/n",result);

}

// 第二种执行方式

void mac_two()

{

int result;

typedef int(*Fun)(int);

Fun p=NULL;

p = (Fun)machineCode;

result = p(7);

printf("%d/r/n",result);

}

// 第三种执行方式

void mac_three()

{

int result;

result = ( ( int (*)(int) ) machineCode )(7);

printf("%d/r/n",result);

}

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