qyrd.rar_vc 禁用网卡_启用网卡

#include <windows.h> #include <setupapi.h> #include <tchar.h> #include <stdio.h> #pragma comment(lib,"ws2_32.lib") #pragma comment(lib,"setupapi.lib") BOOL DisableNetInterface(bool bStatus) { IN LPTSTR HardwareId ; //硬件ComponentId，注册表地址：system\currentcontrolset\class\{4D36E972-E325-11CE-BFC1-08002BE10318}\0000 HardwareId="PCI\\VEN_10EC&DEV_8139&SUBSYS_813910EC" ; DWORD NewState ; if(bStatus) { NewState=DICS_DISABLE ; //禁用 } else { NewState=DICS_ENABLE ; //启用 } //调用ddk函数，来禁用网卡 DWORD i,err ; BOOL Found=false ; HDEVINFO hDevInfo ; SP_DEVINFO_DATA spDevInfoData ; //访问系统的硬件库 hDevInfo=SetupDiGetClassDevs(NULL,"PCI",NULL,DIGCF_ALLCLASSES|DIGCF_PRESENT); if(hDevInfo==INVALID_HANDLE_VALUE) { printf("访问系统硬件出错！"); return false ; } //枚举硬件，获得需要的接口 spDevInfoData.cbSize=sizeof(SP_DEVINFO_DATA); for(i=0;SetupDiEnumDeviceInfo(hDevInfo,i,&spDevInfoData);i++) { DWORD DataT ; LPTSTR p,buffer=NULL ; DWORD buffersize=0 ; //获得硬件的属性值 while(!SetupDiGetDeviceRegistryProperty( hDevInfo, &spDevInfoData, SPDRP_HARDWAREID, &DataT, (PBYTE)buffer, buffersize, &buffersize)) { if(GetLastError()==ERROR_INVALID_DATA) { //不存在HardwareID. Continue. break ; } else if(GetLastError()==ERROR_INSUFFICIENT_BUFFER) { //buffer size不对. if(buffer) LocalFree(buffer); buffer=(char*)LocalAlloc(LPTR,buffersize); } else { //未知错误 goto cleanup_DeviceInfo ; } } if(GetLastError()==ERROR_INVALID_DATA) continue ; //比较，找到和网卡ID相同的项 for(p=buffer;*p&&(p<&buffer[buffersize]);p+=lstrlen(p)+sizeof(TCHAR)) { if(!_tcscmp(HardwareId,p)) { //找到网卡 Found=TRUE ; break ; } } if(buffer) LocalFree(buffer); //如果相等 if(Found) { //禁用该设备 SP_PROPCHANGE_PARAMS spPropChangeParams ; spPropChangeParams.ClassInstallHeader.cbSize=sizeof(SP_CLASSINSTALL_HEADER); spPropChangeParams.ClassInstallHeader.InstallFunction=DIF_PROPERTYCHANGE ; spPropChangeParams.Scope=DICS_FLAG_GLOBAL ; spPropChangeParams.StateChange=NewState ; //禁用：DICS_DISABLE，DICS_ENABLE启用 // if(!SetupDiSetClassInstallParams(hDevInfo,&spDevInfoData,(SP_CLASSINSTALL_HEADER*)&spPropChangeParams,sizeof(spPropChangeParams))) { DWORD errorcode=GetLastError(); } if(!SetupDiCallClassInstaller(DIF_PROPERTYCHANGE,hDevInfo,&spDevInfoData)) { DWORD errorcode=GetLastError(); } switch(NewState) { case DICS_DISABLE : printf("成功禁用网络！"); break ; case DICS_ENABLE : printf("成功启用网络！"); break ; } break ; } } //退出时，清理工作环境 cleanup_DeviceInfo : err=GetLastError(); SetupDiDestroyDeviceInfoList(hDevInfo); SetLastError(err); return true ; } void usage(char *exefile) { printf("Usage:%s [-e|-d]\r\n", exefile); printf("\t-e: Enable the network card.\r\n"); printf("\t-d: Disable the network card.\r\n"); exit(0); } int main(int argc,char**argv) { if(argc<2) usage(argv[0]); if(!DisableNetInterface((strstr(argv[1],"-d")>0?TRUE:FALSE))) printf("对网卡操作失败!"); return 0; }