Checking socket connection is a crucial step in network programming. It involves verifying if a socket is successfully connected to a remote endpoint. This process ensures that data can be reliably transmitted and received between the two endpoints.
There are several ways to check socket connection. One common method is to use the `getsockopt()` function. This function retrieves the current socket options, including the connection status. If the socket is connected, the `getsockopt()` function will return 0. Otherwise, it will return an error code indicating the reason for the failure.