str_echo.c

linux下的聊天程序

//#include	"unp.h"
#include <stdio.h> 
#include <stdlib.h> 
#include <errno.h> 
#include <string.h> 
#include <sys/types.h> 
#include <netinet/in.h> 
#include <sys/socket.h> 
#include <sys/wait.h> 

#define SERV_PORT 9877 
#define LISTENQ 1024 
#define MAXLINE 4096 
#define SA struct sockaddr

void str_echo(int sockfd)
{
	ssize_t		n;
	char		line[MAXLINE];

	for ( ; ; ) {
		if ( (n = Readline(sockfd, line, MAXLINE)) == 0)
			return;		/* connection closed by other end */

		Writen(sockfd, line, n);
	}
}