InpOut32 InputTest.cpp hacking

/************************************************************************************
* InpOut32 InputTest.cpp hacking
* 说明：
* 跟一下InputTest.cpp中InpOut32怎么使用。
*
* 2017-6-5 深圳 龙华樟坑村 曾剑锋
***********************************************************************************/// InpoutTest.cpp : Defines the entry point for the console application.
//#include "stdafx.h"
#include "windows.h"
#include "stdio.h"// 函数类型指针定义
typedef void (__stdcall *lpOut32)(short, short);
typedef short (__stdcall *lpInp32)(short);
typedef BOOL (__stdcall *lpIsInpOutDriverOpen)(void);
typedef BOOL (__stdcall *lpIsXP64Bit)(void);//Some global function pointers (messy but fine for an example)
// 函数指针声明，gfpOut32 = global function pointer Inpout32
lpOut32 gfpOut32;
lpInp32 gfpInp32;
lpIsInpOutDriverOpen gfpIsInpOutDriverOpen;
lpIsXP64Bit gfpIsXP64Bit;/**
* 下面链接中有解释以下Beep、StopBeep代码中的含义:
* How does the following code make PC beeps?
* https://stackoverflow.com/questions/5987683/how-does-the-following-code-make-pc-beeps
*/
void Beep(unsigned int freq)
{
gfpOut32(0x43, 0xB6);
gfpOut32(0x42, (freq & 0xFF));
gfpOut32(0x42, (freq >> ));
Sleep();
gfpOut32(0x61, gfpInp32(0x61) | 0x03);
}void StopBeep()
{
gfpOut32(0x61, (gfpInp32(0x61) & 0xFC));
}int main(int argc, char* argv[])
{
if(argc<)
{
//too few command line arguments, show usage
printf("Error : too few arguments\n\n***** Usage *****\n\nInpoutTest read <ADDRESS> \nor \nInpoutTest write <ADDRESS> <DATA>\n\n\n\n\n");
}
else
{
//Dynamically load the DLL at runtime (not linked at compile time)
// 在运行的时候动态加载DLL
HINSTANCE hInpOutDll ;
hInpOutDll = LoadLibrary ( "InpOut32.DLL" ) ; //The 32bit DLL. If we are building x64 C++
//applicaiton then use InpOutx64.dll
if ( hInpOutDll != NULL )
{
// 获取函数操作指针
gfpOut32 = (lpOut32)GetProcAddress(hInpOutDll, "Out32");
gfpInp32 = (lpInp32)GetProcAddress(hInpOutDll, "Inp32");
gfpIsInpOutDriverOpen = (lpIsInpOutDriverOpen)GetProcAddress(hInpOutDll, "IsInpOutDriverOpen");
gfpIsXP64Bit = (lpIsXP64Bit)GetProcAddress(hInpOutDll, "IsXP64Bit"); if (gfpIsInpOutDriverOpen())
{
//Make some noise through the PC Speaker - hey it can do more that a single beep using InpOut32
// 制造一些不同频率的噪声
Beep();
Sleep();
Beep();
Sleep();
Beep();
Sleep();
StopBeep(); if(!strcmp(argv[],"read"))
{
// 字符串转数字，并读取相关地址上的数据
short iPort = atoi(argv[]);
WORD wData = gfpInp32(iPort); //Read the port
printf("Data read from address %s is %d \n\n\n\n", argv[], wData);
}
else if(!strcmp(argv[],"write"))
{
if(argc<)
{
printf("Error in arguments supplied");
printf("\n***** Usage *****\n\nInpoutTest read <ADDRESS> \nor \nInpoutTest write <ADDRESS> <DATA>\n\n\n\n\n");
}
else
{
// 字符串转数字，并写入数据到相关地址上
short iPort = atoi(argv[]);
WORD wData = atoi(argv[]);
gfpOut32(iPort, wData);
printf("data written to %s\n\n\n", argv[]);
}
}
}
else
{
printf("Unable to open InpOut32 Driver!\n");
} //All done
FreeLibrary ( hInpOutDll ) ;
return ;
}
else
{
printf("Unable to load InpOut32 DLL!\n");
return -;
}
}
return -;
}