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main.cpp
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main.cpp
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//#include <iostream>
#include <winsock2.h>
#include <iphlpapi.h>
#include <ws2tcpip.h>
#include <stdio.h>
#include <stdlib.h>
//using namespace std;
int main()
{
WSADATA d;
if (WSAStartup(MAKEWORD(2, 2), &d)) {
printf("Failed to initialize.\n");
return -1;
}
DWORD asize = 20000;
PIP_ADAPTER_ADDRESSES adapters;
do {
adapters = new IP_ADAPTER_ADDRESSES[asize];
if (!adapters) {
printf("Couldn't allocate %ld bytes for adapters.\n", asize);
WSACleanup();
return -1;
}
int r = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 0,
adapters, &asize);
if (r == ERROR_BUFFER_OVERFLOW) {
printf("GetAdaptersAddresses wants %ld bytes.\n", asize);
free(adapters);
} else if (r == ERROR_SUCCESS) {
break;
} else {
printf("Error from GetAdaptersAddresses: %d\n", r);
delete []adapters;
WSACleanup();
return -1;
}
} while (!adapters);
PIP_ADAPTER_ADDRESSES adapter = adapters;
while (adapter) {
printf("\nAdapter name: %S\n", adapter->FriendlyName);
PIP_ADAPTER_UNICAST_ADDRESS address = adapter->FirstUnicastAddress;
while (address) {
printf("\t%s",
address->Address.lpSockaddr->sa_family == AF_INET ?
"IPv4" : "IPv6");
char ap[100];
getnameinfo(address->Address.lpSockaddr,
address->Address.iSockaddrLength,
ap, sizeof(ap), 0, 0, NI_NUMERICHOST);
printf("\t%s\n", ap);
address = address->Next;
}
adapter = adapter->Next;
}
delete []adapters;
WSACleanup();
return 0;
}