Network client/server (二)，networkclient
接上篇 Network client/server (一)
server.c
1 header files
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#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
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int main()
{
int server_sockfd, client_sockfd;
int server_len, client_len;
struct sockaddr_in server_address;
struct sockaddr_in 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
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bind(server_sockfd, (struct sockaddr*)&server_address, server_len);
listen(server_sockfd, 5);
bind, listen
4 while loop: accept - read/write - close
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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
小結:
client: socket -- connect --r/w -- close
server: socket -- bind -- listen -- accept -- r/w -- close
while(1)
