CODEWITHSUNDEEP
c++network-programmingtcpwinsock
Joseph Pla
Joseph Pla

Reputation: 1598

Additional data along with TCP connect request

I have a client implementation and a server implementation. I want the client to send data about itself along with its connection request to the server. So for example, I could send an additional packet with the username. I was wondering if this is at all possible using connect() before a stream has actually been established. I would then accept only based on that information.

Thanks

Upvotes: 1

Views: 222

Answers (1)

Anders Abel
Anders Abel

Reputation: 69260

Don't mix layers. The TCP connect is on the network layer, establishing a communication channel between the machines.

Instead, define your protocol (the rules for how data is transmitted in your TCP stream) to contain a handshake first. E.g. SMTP uses a header and handshake to first set up the connection before any actual emails are sent.

Upvotes: 3

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