Как узнать имя интернет сети к которой подключен комп. Подключен ли интернет проверяю так:
#include
typedef BOOL(WINAPI* INETCHECKPROC) (LPDWORD lpdwFlags, DWORD dwReserved);
bool GetStatusConnect()
{
bool bRetVal;
HINSTANCE hLib = NULL;
INETCHECKPROC pfnInternetGetConnectedState;
hLib = LoadLibrary("wininet.dll");
if (!hLib)
return 0;
pfnInternetGetConnectedState = (INETCHECKPROC)GetProcAddress(hLib, "InternetGetConnectedState");
if (!pfnInternetGetConnectedState)
return false;
DWORD lpdwFlags;
bRetVal = pfnInternetGetConnectedState(&lpdwFlags, 0) != 0;
FreeLibrary(hLib);
return bRetVal;
}
Вот только как узнать имя сети?
Ответ
Так можно получить названия адаптера и соответствующего сетевого подключения:
#include
#include
#include
#include
#include
#include
#include
#pragma comment(lib, "ole32.lib")
// Link with Iphlpapi.lib
#pragma comment(lib, "IPHLPAPI.lib")
#define WORKING_BUFFER_SIZE 15000
#define MAX_TRIES 3
#define MALLOC(x) HeapAlloc(GetProcessHeap(), 0, (x))
#define FREE(x) HeapFree(GetProcessHeap(), 0, (x))
/********************************************************************************/
//Получает информацию о соединении по GUID адаптера
NLM_CONNECTIVITY GetAdapterConnectivity(LPCWSTR adapter){
INetworkListManager *pNetworkListManager = NULL;
HRESULT hr = CoCreateInstance(CLSID_NetworkListManager, NULL,
CLSCTX_ALL, IID_INetworkListManager,
(LPVOID *)&pNetworkListManager);
if(FAILED(hr)){
printf("CoCreateInstance failed: 0x%x
",(UINT)hr);
return (NLM_CONNECTIVITY)0;
}
IEnumNetworkConnections* pEnum = NULL;
hr = pNetworkListManager->GetNetworkConnections(&pEnum);
if(FAILED(hr)){
pNetworkListManager->Release();
printf("GetNetworkConnections failed: 0x%x
",(UINT)hr);
return (NLM_CONNECTIVITY)0;
}
const int NUM_CONNECTION = 10;
INetworkConnection* pNetworkConnections[NUM_CONNECTION];
ULONG cFetched = 0;
BOOL bDone = FALSE;
GUID guid;
NLM_CONNECTIVITY nlmc=(NLM_CONNECTIVITY)0;
while (!bDone)
{
hr = pEnum->Next(NUM_CONNECTION, pNetworkConnections, &cFetched);
if (SUCCEEDED(hr) && (cFetched > 0))
{
for (ULONG i = 0; i < cFetched; i++)
{
pNetworkConnections[i]->GetAdapterId(&guid);
OLECHAR* guidString;
StringFromCLSID(guid, &guidString);
if(wcscmp(adapter,guidString) == 0){
pNetworkConnections[i]->GetConnectivity(&nlmc);
}
// ensure memory is freed
::CoTaskMemFree(guidString);
pNetworkConnections[i]->Release();
}
}
else
{
bDone = TRUE;
}
}
pEnum->Release();
pNetworkListManager->Release();
return nlmc;
}
int _tmain(int argc, _TCHAR* argv[])
{
setlocale(LC_ALL,"Russian");
CoInitialize(NULL);
/* Declare and initialize variables */
DWORD dwSize = 0;
DWORD dwRetVal = 0;
unsigned int i = 0;
// Set the flags to pass to GetAdaptersAddresses
ULONG flags = GAA_FLAG_INCLUDE_PREFIX;
// default to unspecified address family (both)
ULONG family = AF_UNSPEC;
LPVOID lpMsgBuf = NULL;
PIP_ADAPTER_ADDRESSES pAddresses = NULL;
ULONG outBufLen = 0;
ULONG Iterations = 0;
PIP_ADAPTER_ADDRESSES pCurrAddresses = NULL;
PIP_ADAPTER_UNICAST_ADDRESS pUnicast = NULL;
PIP_ADAPTER_ANYCAST_ADDRESS pAnycast = NULL;
PIP_ADAPTER_MULTICAST_ADDRESS pMulticast = NULL;
IP_ADAPTER_DNS_SERVER_ADDRESS *pDnServer = NULL;
IP_ADAPTER_PREFIX *pPrefix = NULL;
// Allocate a 15 KB buffer to start with.
outBufLen = WORKING_BUFFER_SIZE;
do {
pAddresses = (IP_ADAPTER_ADDRESSES *) MALLOC(outBufLen);
if (pAddresses == NULL) {
printf ("Memory allocation failed for IP_ADAPTER_ADDRESSES struct
");
goto End;
}
dwRetVal =
GetAdaptersAddresses(family, flags, NULL, pAddresses, &outBufLen);
if (dwRetVal == ERROR_BUFFER_OVERFLOW) {
FREE(pAddresses);
pAddresses = NULL;
} else {
break;
}
Iterations++;
} while ((dwRetVal == ERROR_BUFFER_OVERFLOW) && (Iterations < MAX_TRIES));
if (dwRetVal == NO_ERROR) {
// If successful, output some information from the data we received
wprintf(L"*** Network connections ***
");
pCurrAddresses = pAddresses;
while (pCurrAddresses) {
WCHAR* adapter = NULL;
int c = strlen(pCurrAddresses->AdapterName);
adapter = (WCHAR*)MALLOC((c+1) * 2);
ZeroMemory(adapter,(c+1) * 2);
MultiByteToWideChar(CP_ACP,0,pCurrAddresses->AdapterName,c,adapter,c);
//wprintf(L"\tGUID: %s
", adapter);
NLM_CONNECTIVITY nlmc = GetAdapterConnectivity(adapter);
if(nlmc != NLM_CONNECTIVITY_DISCONNECTED){
wprintf(L"Adapter: %s
", pCurrAddresses->Description);
wprintf(L"Network: %s
", pCurrAddresses->FriendlyName);
wprintf(L"Connected to:", (UINT)nlmc);
if (nlmc & NLM_CONNECTIVITY_IPV4_LOCALNETWORK) wprintf(L" IPv4 LAN;");
if (nlmc & NLM_CONNECTIVITY_IPV4_INTERNET) wprintf(L" IPv4 Internet;");
if (nlmc & NLM_CONNECTIVITY_IPV6_LOCALNETWORK) wprintf(L" IPv6 LAN;");
if (nlmc & NLM_CONNECTIVITY_IPV6_INTERNET) wprintf(L" IPv6 Internet");
wprintf(L"
");
}
FREE(adapter);
pCurrAddresses = pCurrAddresses->Next;
}
} else {
printf("Call to GetAdaptersAddresses failed with error: %d
",
dwRetVal);
if (dwRetVal == ERROR_NO_DATA)
printf("\tNo addresses were found for the requested parameters
");
else {
if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, dwRetVal, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
// Default language
(LPTSTR) & lpMsgBuf, 0, NULL)) {
printf("\tError: %s", lpMsgBuf);
LocalFree(lpMsgBuf);
if (pAddresses)
FREE(pAddresses);
goto End;
}
}
}
if (pAddresses) {
FREE(pAddresses);
}
End:
system("PAUSE");
return 0;
}
А так - имя сети:
#include
#include
#include
#include
#include
#pragma comment(lib, "ole32.lib")
/********************************************************************************/
int _tmain(int argc, _TCHAR* argv[])
{
setlocale(LC_ALL,"Russian");
CoInitialize(NULL);
INetworkListManager *pNetworkListManager = NULL;
IEnumNetworkConnections* pEnum = NULL;
//инициализация Network List Manager API
HRESULT hr = CoCreateInstance(CLSID_NetworkListManager, NULL,
CLSCTX_ALL, IID_INetworkListManager,
(LPVOID *)&pNetworkListManager);
if(FAILED(hr)){
printf("CoCreateInstance failed: 0x%x
",(UINT)hr);
goto End;
}
hr = pNetworkListManager->GetNetworkConnections(&pEnum); //получаем сетевые подключения
if(FAILED(hr)){
printf("GetNetworkConnections failed: 0x%x
",(UINT)hr);
goto End;
}
wprintf(L"*** Networks ***
");
const int NUM_CONNECTION = 10;
INetworkConnection* pNetworkConnections[NUM_CONNECTION];
ULONG cFetched = 0;
BOOL bDone = FALSE;
NLM_CONNECTIVITY nlmc;
INetwork* pNetwork = NULL;
BSTR name;
while (!bDone)
{
hr = pEnum->Next(NUM_CONNECTION, pNetworkConnections, &cFetched);
if (SUCCEEDED(hr) && (cFetched > 0))
{
for (ULONG i = 0; i < cFetched; i++)
{
nlmc=(NLM_CONNECTIVITY)0;
name = NULL;
hr = pNetworkConnections[i]->GetNetwork(&pNetwork); //получаем сеть, соответствующую подключению
if(SUCCEEDED(hr)){
hr = pNetwork->GetName(&name); //получаем имя сети
if(SUCCEEDED(hr) && name != NULL){
wprintf(L"%s ",name);
pNetworkConnections[i]->GetConnectivity(&nlmc);
if(nlmc != 0) wprintf(L"- connected to:");
if (nlmc & NLM_CONNECTIVITY_IPV4_LOCALNETWORK) wprintf(L" IPv4 LAN;");
if (nlmc & NLM_CONNECTIVITY_IPV4_INTERNET) wprintf(L" IPv4 Internet;");
if (nlmc & NLM_CONNECTIVITY_IPV6_LOCALNETWORK) wprintf(L" IPv6 LAN;");
if (nlmc & NLM_CONNECTIVITY_IPV6_INTERNET) wprintf(L" IPv6 Internet");
wprintf(L"
");
}
pNetwork->Release();
}
// ensure memory is freed
pNetworkConnections[i]->Release();
}
}
else
{
bDone = TRUE;
}
}
End:
if(pEnum!=NULL)pEnum->Release();
if(pNetworkListManager!=NULL)pNetworkListManager->Release();
system("PAUSE");
return 0;
}
Ссылки:
Network Awareness in Windows Vista and Windows 7
GetAdaptersAddresses function
