How do I handle errors in C++ socket programming?

How do I handle errors in C++ socket programming?

In C++ socket programming, you can handle errors by checking the return values of socket functions. For example, if a function like socket(), bind(), or connect() returns -1, you can use errno to determine the error type.

What are some common errors I should look out for?

Common errors include EADDRINUSE (address already in use), ECONNREFUSED (connection refused), and ETIMEDOUT (connection timed out). Always check errno after a failed socket operation.

Can you show me a code example for error handling?

Sure! Here's a simple example:

int sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd == -1) {
    perror("Socket creation failed");
    return -1;
}

What should I do if I encounter a timeout error?

If you encounter a timeout error, you can increase the timeout duration using setsockopt() with the SO_RCVTIMEO and SO_SNDTIMEO options to set receive and send timeouts.