Network client/server (2), networkclient

Network client/server (2), networkclient

Next part: Network client/server (1)

 

Server. c

1 header files

# Include <sys/types. h> # include <sys/socket. h> # include <stdio. h> # include <stdlib. h> # include <netinet/in. h> # include <arpa/inet. h> # include <unistd. h>Header

 

2 socket

Int main () {int server_sockfd, client_sockfd; int server_len, client_len; struct implements server_address; struct implements client_address; unlink ("server_socket"); server_sockfd = socket (AF_INET, SOCK_STREAM, 0); server_address.sin_family = AF_INET; server_address.sin_addr.s_addr = htonl (INADDR_ANY); server_address.sin_port = htons (9734); server_len = sizeof (server_address );Socket

 

3 bind, listen

Bind (server_sockfd, (struct sockaddr *) & server_address, server_len); listen (server_sockfd, 5 );Bind, listen

 

4 while loop: accept-read/write-close

While (1) {char ch; printf ("server waiting \ n"); client_len = sizeof (client_address); client_sockfd = accept (server_sockfd, (struct sockaddr *) & client_address, & client_len); read (client_sockfd, & ch, 1); ch ++; write (client_sockfd, & ch, 1); close (client_sockfd );}}While loop

 

Summary:

Client: socket -- connect -- r/w -- close

Server: socket -- bind -- listen -- accept -- r/w -- close

While (1)