listen.c

socket服务端在LINUX下的一个网络编程

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <sys/types.h>
#include <netinet/in.h>
#include <sys/socket.h>

int main()
{
	char buf[256]="hello ni";
	int client_fd=0;
	int sockfd=0;
	struct sockaddr_in my_server;
	struct sockaddr_in client;

	my_server.sin_family=AF_INET;
	my_server.sin_port=htons(7890);
	my_server.sin_addr.s_addr=inet_addr("10.170.100.198");
	bzero(&(my_server.sin_zero),8);
	sockfd=socket(AF_INET,SOCK_STREAM,0);//INIT SOCKET FD;
	if(bind(sockfd,(struct sockaddr *)&my_server,sizeof(my_server))<0)
	{
		printf("bind error\n");
		exit(0);
	}	
	printf("bind suceed!\n");
	if(listen(sockfd,3)<0)
	{
		printf("listen error\n");
		exit(0);
	}	
	printf("listen succeed!\n");
	int addrlen = sizeof(struct sockaddr_in);
	client_fd=accept(sockfd,(struct sockaddr *)&client,(size_t *)&addrlen);
	send(client_fd,buf,sizeof(buf),0);
	return 0;
}