VC获得正在使用的网卡的MAC地址

PIP_ADAPTER_INFO pAdapterInfo;
PIP_ADAPTER_INFO pAdapter = NULL;
DWORD dwRetVal = 0;
UINT i;

/* variables used to print DHCP time info */
struct tm newtime;
char buffer[32];
errno_t error;

ULONG ulOutBufLen = sizeof (IP_ADAPTER_INFO);
pAdapterInfo = (IP_ADAPTER_INFO *) MALLOC(sizeof (IP_ADAPTER_INFO));
if (pAdapterInfo == NULL) {
printf("Error allocating memory needed to call GetAdaptersinfo\n");
return 1;
}
// Make an initial call to GetAdaptersInfo to get
// the necessary size into the ulOutBufLen variable
if (GetAdaptersInfo(pAdapterInfo, &ulOutBufLen) == ERROR_BUFFER_OVERFLOW) {
FREE(pAdapterInfo);
pAdapterInfo = (IP_ADAPTER_INFO *) MALLOC(ulOutBufLen);
if (pAdapterInfo == NULL) {
printf("Error allocating memory needed to call GetAdaptersinfo\n");
return 1;
}
}

if ((dwRetVal = GetAdaptersInfo(pAdapterInfo, &ulOutBufLen)) == NO_ERROR) {
pAdapter = pAdapterInfo;
while (pAdapter) {
if (pAdapter->DhcpEnabled) {
/*
printf("\t Lease Obtained: ");
/* Display local time

error = _localtime32_s(&newtime, (__time32_t*) &pAdapter->LeaseObtained);
if (error)
printf("Invalid Argument to _localtime32_s\n");
else {
// Convert to an ASCII representation
error = asctime_s(buffer, 32, &newtime);
if (error)
printf("Invalid Argument to asctime_s\n");
else
asctime_s returns the string terminated by \n\0
printf("%s", buffer);
}
*/
if( pAdapter->LeaseObtained > 10 ){
for (i = 0; i < pAdapter->AddressLength; i++) {
if (i == (pAdapter->AddressLength - 1))
printf("%.2X\n", (int) pAdapter->Address[i]);
else
printf("%.2X-", (int) pAdapter->Address[i]);
}
}

}

 

pAdapter = pAdapter->Next;
printf("\n");
}
} else {
printf("GetAdaptersInfo failed with error: %d\n", dwRetVal);

}
if (pAdapterInfo)
FREE(pAdapterInfo);