模仿Rundll32.exe

/* * FileName: my_Rundll32.cpp * Creator: 冷却 * Date: 2009年10月7日 * Comment: 模仿Windows里的一个名为Rundll32.exe的小工具 */#include <windows.h>#pragma comment(linker, "/subsystem:windows")typedef void (*EntryPoint)( HWND hwnd, // handle to owner window HINSTANCE hinst, // instance handle for the DLL LPTSTR lpCmdLine, // string the DLL will parse int nCmdShow // show state );int WINAPI WinMain( HINSTANCE hInstance, // handle to current instance HINSTANCE hPrevInstance, // handle to previous instance LPSTR lpCmdLine, // command line int nCmdShow // show state ){if ( strlen(lpCmdLine)==0 ){return -1;}char* buf=lpCmdLine;char* tmp=NULL;bool haveArg=true;int n,n1;int len = strlen(buf);tmp = strchr(buf, ',');if ( tmp == NULL ){return -1;}int commaPos = (tmp-buf);int spacePos;tmp = strchr(buf, ' ');if ( tmp == NULL ){spacePos = len;haveArg = false;}else{spacePos = (tmp-buf);}char* dllName=NULL;char* funName=NULL;char* arguments=NULL;dllName = new char[commaPos+1];funName = new char[spacePos-commaPos];if ( haveArg ){arguments = new char[len-spacePos];}else{arguments = new char[1];strcpy(arguments, "");}for ( n=0; n<commaPos; n++ ){dllName[n] = buf[n];}dllName[commaPos]=0;for ( n1=0,n=(commaPos+1); n<spacePos; n1++,n++ ){funName[n1] = buf[n];}funName[spacePos-commaPos-1]=0;if ( haveArg ){for ( n1=0,n=spacePos+1; n<len; n1++,n++){arguments[n1] = buf[n];}arguments[len-spacePos-1]=0;}//这部分为核心部分，其余的均是为了解析参数HINSTANCE dll_handle = LoadLibrary(dllName);if ( dll_handle != NULL ){EntryPoint my_fun = (EntryPoint)GetProcAddress(dll_handle, funName);if ( my_fun != NULL ){my_fun((HWND)hInstance, dll_handle, arguments, nCmdShow);}else{MessageBox(0,"丢失条目！",0,0);}}else{MessageBox(0,"找不到指定的模块！",0,0);}FreeLibrary(dll_handle);//delete[] dllName;delete[] funName;if ( haveArg ){delete[] arguments;}return 0;}