#include <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <netinet/in.h>
#define SERVPORT 3333
#define BACKLOG 10
#define MAX_CONNECTED_NO 10
#define MAXDATASIZE 5
int main()
{
struct sockaddr_in server_sockaddr,client_sockaddr;
int sin_size,recvbytes;
int sockfd,client_fd;
char buf[MAXDATASIZE];
if((sockfd = socket(AF_INET,SOCK_STREAM,0))==-1){
perror("socket");
exit(1);
}
printf("socket success!,sockfd=%d\n",sockfd);
server_sockaddr.sin_family=AF_INET;
server_sockaddr.sin_port=htons(SERVPORT);
server_sockaddr.sin_addr.s_addr=INADDR_ANY;
bzero(&(server_sockaddr.sin_zero),8);
if(bind(sockfd,(struct sockaddr *)&server_sockaddr,sizeof(struct sockaddr))==-1){
perror("bind");
exit(1);
}
printf("bind success!\n");
if(listen(sockfd,BACKLOG)==-1){
perror("listen");
exit(1);
}
printf("listening....\n");
if((client_fd=accept(sockfd,(struct sockaddr *)&client_sockaddr,&sin_size))==-1){
perror("accept");
exit(1);
}
if((recvbytes=recv(client_fd,buf,MAXDATASIZE,0))==-1){
perror("recv");
exit(1);
}
printf("received a connection :%s\n",buf);
close(sockfd);
}
linux-tcp 网络通信
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2014-03-04
15:18:09
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