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#include "interface.h"
#if defined(_unix_)
#include <ifaddrs.h>
#endif
#ifdef _win_
#include <iphlpapi.h>
#pragma comment(lib, "Iphlpapi.lib")
#endif
namespace NAddr {
static bool IsInetAddress(sockaddr* addr) {
return (addr != nullptr) && ((addr->sa_family == AF_INET) || (addr->sa_family == AF_INET6));
}
TNetworkInterfaceList GetNetworkInterfaces() {
TNetworkInterfaceList result;
#ifdef _win_
TVector<char> buf;
buf.resize(1000000);
PIP_ADAPTER_ADDRESSES adapterBuf = (PIP_ADAPTER_ADDRESSES)&buf[0];
ULONG bufSize = buf.ysize();
if (GetAdaptersAddresses(AF_UNSPEC, 0, nullptr, adapterBuf, &bufSize) == ERROR_SUCCESS) {
for (PIP_ADAPTER_ADDRESSES ptr = adapterBuf; ptr != 0; ptr = ptr->Next) {
// The check below makes code working on Vista+
if ((ptr->Flags & (IP_ADAPTER_IPV4_ENABLED | IP_ADAPTER_IPV6_ENABLED)) == 0) {
continue;
}
if (ptr->IfType == IF_TYPE_TUNNEL) {
// ignore tunnels
continue;
}
if (ptr->OperStatus != IfOperStatusUp) {
// ignore disable adapters
continue;
}
for (IP_ADAPTER_UNICAST_ADDRESS* addr = ptr->FirstUnicastAddress; addr != 0; addr = addr->Next) {
sockaddr* a = (sockaddr*)addr->Address.lpSockaddr;
if (IsInetAddress(a)) {
TNetworkInterface networkInterface;
// Not very efficient but straightforward
for (size_t i = 0; ptr->FriendlyName[i] != 0; i++) {
CHAR w = ptr->FriendlyName[i];
char c = (w < 0x80) ? char(w) : '?';
networkInterface.Name.append(1, c);
}
networkInterface.Address = new TOpaqueAddr(a);
result.push_back(networkInterface);
}
}
}
}
#else
ifaddrs* ifap;
if (getifaddrs(&ifap) != -1) {
for (ifaddrs* ifa = ifap; ifa != nullptr; ifa = ifa->ifa_next) {
if (IsInetAddress(ifa->ifa_addr)) {
TNetworkInterface interface;
interface.Name = ifa->ifa_name;
interface.Address = new TOpaqueAddr(ifa->ifa_addr);
if (IsInetAddress(ifa->ifa_netmask)) {
interface.Mask = new TOpaqueAddr(ifa->ifa_netmask);
}
result.push_back(interface);
}
}
freeifaddrs(ifap);
}
#endif
return result;
}
}
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