Advanced socket programming (options and control information)

• Brief experimental steps ：

1)    Carry out orders gcc –o advanced_socket advanced_socket.c Generate executable files advanced_socket

2)    Execute executable advanced_socket The configuration information in the current options will be output .

advanced_socket.c The code is as follows ：

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <sys/types.h>

#include <sys/socket.h>

#include <linux/in.h>

#include <unistd.h>

#includ