www.pudn.com > 11_code.rar > server.c

/*server.c*/ 
#include  
#include  
#include  
#include  
#include  
#include  
#include  
#include  
#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]; 
/*建立socket连接*/ 
	if((sockfd = socket(AF_INET,SOCK_STREAM,0))==-1){ 
		perror("socket"); 
		exit(1); 
	} 
	printf("socket success!,sockfd=%d\n",sockfd); 
/*设置sockaddr_in 结构体中相关参数*/ 
	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); 
/*绑定函数bind*/ 
	if(bind(sockfd,(struct sockaddr *)&server_sockaddr,sizeof(struct sockaddr))==-1){ 
		perror("bind"); 
		exit(1); 
	} 
	printf("bind success!\n"); 
/*调用listen函数*/ 
	if(listen(sockfd,BACKLOG)==-1){ 
		perror("listen"); 
		exit(1); 
	} 
	printf("listening....\n"); 
/*调用accept函数，等待客户端的连接*/ 
	if((client_fd=accept(sockfd,(struct sockaddr *)&client_sockaddr,&sin_size))==-1){ 
		perror("accept"); 
		exit(1); 
	} 
/*调用recv函数接收客户端的请求*/ 
	if((recvbytes=recv(client_fd,buf,MAXDATASIZE,0))==-1){ 
		perror("recv"); 
		exit(1); 
	} 
 	printf("received a connection :%s\n",buf); 
	close(sockfd); 
}