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Only reply to broadcasts with correct message

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Ted John 2019-05-05 16:31:50 +00:00
parent 59ddd7e1ea
commit 6a4791e39e
3 changed files with 6 additions and 5 deletions
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8
src/openrct2/network/NetworkServerAdvertiser.cpp
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@ -102,11 +102,11 @@ private:
}
else
{
char buffer[256];
size_t recievedBytes;
char buffer[256]{};
size_t recievedBytes{};
std::unique_ptr<INetworkEndpoint> endpoint;
auto p = _lanListener->ReceiveData(buffer, sizeof(buffer), &recievedBytes, &endpoint);
if (p == NETWORK_READPACKET_SUCCESS)
auto p = _lanListener->ReceiveData(buffer, sizeof(buffer) - 1, &recievedBytes, &endpoint);
if (p == NETWORK_READPACKET_SUCCESS && String::Equals(buffer, NETWORK_LAN_BROADCAST_MSG))
{
std::string sender = endpoint->GetHostname();
log_verbose("Received %zu bytes from %s on LAN broadcast port", recievedBytes, sender.c_str());

2
src/openrct2/network/ServerList.cpp
View file

@ -240,7 +240,7 @@ std::future<std::vector<ServerListEntry>> ServerList::FetchLocalServerListAsync(
constexpr auto RECV_DELAY_MS = 10;
constexpr auto RECV_WAIT_MS = 2000;
std::string msg = "Are you an OpenRCT2 server?";
std::string_view msg = NETWORK_LAN_BROADCAST_MSG;
auto udpSocket = CreateUdpSocket();
log_verbose("Broadcasting %zu bytes to the LAN (%s)", msg.size(), broadcastAddress);

1
src/openrct2/network/network.h
View file

@ -11,6 +11,7 @@
#define NETWORK_DEFAULT_PORT 11753
#define NETWORK_LAN_BROADCAST_PORT 11754
#define NETWORK_LAN_BROADCAST_MSG "openrct2.server.query"
#define MAX_SERVER_DESCRIPTION_LENGTH 256
#include "../common.h"