diff --git a/src/network/core/host.cpp b/src/network/core/host.cpp
index 7504f6986f..cf999c24f9 100644
--- a/src/network/core/host.cpp
+++ b/src/network/core/host.cpp
@@ -27,35 +27,34 @@ static void NetworkFindBroadcastIPsInternal(NetworkAddressList *broadcast) // Wi
 	SOCKET sock = socket(AF_INET, SOCK_DGRAM, 0);
 	if (sock == INVALID_SOCKET) return;
 
-	DWORD len = 0;
-	int num = 2;
-	INTERFACE_INFO *ifo = CallocT<INTERFACE_INFO>(num);
+	std::vector<INTERFACE_INFO> ifos;
+	ifos.resize(2);
 
 	for (;;) {
-		if (WSAIoctl(sock, SIO_GET_INTERFACE_LIST, nullptr, 0, ifo, num * sizeof(*ifo), &len, nullptr, nullptr) == 0) break;
-		free(ifo);
+		DWORD len = 0;
+		if (WSAIoctl(sock, SIO_GET_INTERFACE_LIST, nullptr, 0, ifos.data(), static_cast<DWORD>(ifos.size() * sizeof(INTERFACE_INFO)), &len, nullptr, nullptr) == 0) {
+			ifos.resize(len / sizeof(INTERFACE_INFO));
+			break;
+		}
 		if (WSAGetLastError() != WSAEFAULT) {
 			closesocket(sock);
 			return;
 		}
-		num *= 2;
-		ifo = CallocT<INTERFACE_INFO>(num);
+		ifos.resize(ifos.size() * 2);
 	}
 
-	for (uint j = 0; j < len / sizeof(*ifo); j++) {
-		if (ifo[j].iiFlags & IFF_LOOPBACK) continue;
-		if (!(ifo[j].iiFlags & IFF_BROADCAST)) continue;
+	for (auto &ifo : ifos) {
+		if (ifo.iiFlags & IFF_LOOPBACK) continue;
+		if (!(ifo.iiFlags & IFF_BROADCAST)) continue;
 
-		sockaddr_storage address;
-		memset(&address, 0, sizeof(address));
+		sockaddr_storage address{};
 		/* iiBroadcast is unusable, because it always seems to be set to 255.255.255.255. */
-		memcpy(&address, &ifo[j].iiAddress.Address, sizeof(sockaddr));
-		((sockaddr_in*)&address)->sin_addr.s_addr = ifo[j].iiAddress.AddressIn.sin_addr.s_addr | ~ifo[j].iiNetmask.AddressIn.sin_addr.s_addr;
+		memcpy(&address, &ifo.iiAddress.Address, sizeof(sockaddr));
+		reinterpret_cast<sockaddr_in*>(&address)->sin_addr.s_addr = ifo.iiAddress.AddressIn.sin_addr.s_addr | ~ifo.iiNetmask.AddressIn.sin_addr.s_addr;
 		NetworkAddress addr(address, sizeof(sockaddr));
 		if (std::none_of(broadcast->begin(), broadcast->end(), [&addr](NetworkAddress const &elem) -> bool { return elem == addr; })) broadcast->push_back(addr);
 	}
 
-	free(ifo);
 	closesocket(sock);
 }