Messages

16

Network / Problem with receiving sf::Packet

« on: September 01, 2009, 09:12:58 pm »

Yes, because it's the server freeze, not the unoffical client problem. In this case, the other (normal) players can't play anymore. Server is dead, until the unoffical client disconnected.

17

Network / Problem with receiving sf::Packet

« on: September 01, 2009, 07:56:57 pm »

I'm writing the client also. But I don't have any guarantee if anyone doesn't use his own client (for example telnet.exe).
It looks like creating the web application without any protection Who rational will enter ' or 1=1 -- instead of his login?

18

Network / Problem with receiving sf::Packet

« on: September 01, 2009, 06:48:23 pm »

Yes, of course, but it's totally useless when every player can stop server by sending 'incomplete' packet. Is there any way to verify data before receiving as packet?

19

Network / Problem with receiving sf::Packet

« on: September 01, 2009, 05:35:07 pm »

Hello, I found a problem with the sf::SocketTCP::Receive(sf::Packet) function. When I send data, that is not sf::Packet, and try to recieve it with above mentioned function, the code freeze until the client disconnected.

My English is poor, so I'm not sure if anyone will understand my post. :oops: So, I'll try to explain how to reproduce the problem with simple steps:

1. Download and compile example from selectors tutorial:
http://www.sfml-dev.org/tutorials/1.5/network-selector.php

2. Start the program as server

3. (In windows) run "telnet.exe 127.0.0.1 2435"

4. Press any key

The server is no longer responding, until I close the telnet window.

It's a really easy way to "hack" the server. Using a Receive (char *Data, std::size_t MaxSize, std::size_t &SizeReceived) function works, but I'm getting only raw data, not a sf::Packet.

20

Network / sf::Packet and single char

« on: September 01, 2009, 12:06:21 pm »

Oops, that's because I used sf::Uint8 instead of sf::Int8. So, unsigned char works, signed doesn't

21

Network / sf::Packet and single char

« on: September 01, 2009, 11:29:59 am »

It works correctly, so my problem is solved, thanks.
Anyway, it's nice to know, why the char type didn't work...

22

Network / sf::Packet and single char

« on: August 31, 2009, 09:42:08 pm »

Sending other types of data works, but sending char with (for example) string, doesn't work...

23

Network / sf::Packet and single char

« on: August 31, 2009, 08:00:07 pm »

Hi

Is it possible, to send and receive single char via sf::packet? I'm trying to do this with simple code:

Code: [Select]


sf::Packet packet;
char test = 0x01;
packet << test;
//sending packet


Code: [Select]


sf::Packet packet;
//receiving packet
char test;
packet >> test;
if (test == 0x01) std::cout << "Correct";
else std::cout << "Wrong" << (int)test;


...but it's not work: test is alyways 0.

Is there any solution for this problem?
Thanks