// List all useful IPv4/IPv6 addresses (excluding localhost).
/* static */ Strings Address::ListAll(void) {
Strings result;
#ifdef _POSIX
/*
POSIX doesn't provide a way to enumerate network interfaces,
so use Linux getifaddrs(3).
*/
ifaddrs* p_list;
int const error = ::getifaddrs(&p_list);
ASSERT(error == 0);
for (ifaddrs* p_current = p_list; p_current != NULL; p_current = p_current->ifa_next) {
unsigned flags = p_current->ifa_flags;
ADDRESS_FAMILY const family = p_current->ifa_addr->sa_family;
if ((flags & IFF_UP)
&& !(flags & IFF_LOOPBACK)
&& (family == AF_INET || family == AF_INET6))
{
Address const address(*(p_current->ifa_addr));
if (!address.IsLocalHost()) {
// not localhost
String const address_text = address;
result.Append(address_text);
}
}
}
::freeifaddrs(p_list);
#elif defined(_QT)
QList<QHostAddress> const list = QNetworkInterface::allAddresses();
QList<QHostAddress>::const_iterator i_address;
for (i_address = list.constBegin(); i_address != list.constEnd(); i_address++) {
QHostAddress const q_address = *i_address;
Address const address(q_address);
if (!address.IsLocalHost()) {
// not localhost
String const address_text = address;
result.Append(address_text);
}
}
#elif defined(_WINSOCK2)
ULONG const flags = (GAA_FLAG_SKIP_ANYCAST | GAA_FLAG_SKIP_MULTICAST);
PIP_ADAPTER_ADDRESSES p_list = NULL;
ULONG list_bytes = 16000; // initial size estimate
while (p_list == NULL) {
p_list = PIP_ADAPTER_ADDRESSES(new char[list_bytes]);
ASSERT(p_list != NULL);
ULONG const error_code = Win::GetAdaptersAddresses(
AF_UNSPEC, flags, NULL, p_list, &list_bytes);
if (error_code != NO_ERROR) {
if (error_code == ERROR_NO_DATA) {
return result;
}
ASSERT(error_code == ERROR_BUFFER_OVERFLOW);
delete p_list;
p_list = NULL;
}
}
// Go through the list and append useful IP addresses to the result.
PIP_ADAPTER_ADDRESSES p_current = p_list;
while (p_current != NULL) {
// Only interested in unicast addresses.
PIP_ADAPTER_UNICAST_ADDRESS p_unicast = p_current->FirstUnicastAddress;
while (p_unicast != NULL) {
if ((p_unicast->Flags & IP_ADAPTER_ADDRESS_TRANSIENT) == 0x0) {
// not transient
Win::PSOCKADDR const p_address = p_unicast->Address.lpSockaddr;
Address const address(*p_address);
if (!address.IsLocalHost()) {
// not localhost
String const address_text = address;
result.Append(address_text);
}
}
p_unicast = p_unicast->Next;
}
p_current = p_current->Next;
}
delete p_list;
#endif // defined(_WINSOCK2)
return result;
}
