In TCPsocket communication, how does one use ssl encryption technology to encrypt and decrypt data packets?

In TCPsocket communication, how does one use ssl encryption technology to encrypt and decrypt data packets? -- Linux general technology-Linux technology and application information. For details, refer to the following section. C language in linux. May I ask,
When the client wants the server to send data packets, it needs to use ssl to encrypt the data packets. The server needs to decrypt the packets received by the server.

Which of the following describes the principles of ssl encryption and decryption? The online query is a little general for me and I don't understand it ···

Let's give an example of how to encrypt and decrypt data packets using ssl. If you just say this, I really don't know how to write it,

Thank you !!