简单的socket出错！！！

[fzyz_sb]

服务器程序：

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

#define SA struct sockaddr
#define MAXLINE 1024

int main( void )
{
	int	listenfd, connfd;
	struct 	sockaddr_in	servaddr;
	char	buff[ MAXLINE ];
	time_t	ticks;
	pid_t	pid;

	listenfd = socket( AF_INET, SOCK_STREAM, 0 );

	bzero( &servaddr, sizeof( servaddr ) );
	servaddr.sin_family = AF_INET;
	servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
	servaddr.sin_port = htonl(13);

	bind(listenfd, ( SA * )&servaddr, sizeof(servaddr));
	listen( listenfd, 5 );

	for( ; ; ){
		connfd = accept( listenfd, ( SA * )NULL, NULL);
		pid = fork();
		if ( 0 == pid ){
			ticks = time( NULL );
			snprintf(buff, sizeof(buff), "%.24s\r\n", ctime(&ticks));
			write( connfd, buff, strlen(buff));
		}
		if ( waitpid(pid, NULL,0 ) != pid ){
			printf("waitpid error");
			exit(1);
		}
		close( connfd );
	}

	return 0;
}

客户端：

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

#define SA struct sockaddr
#define MAXLINE 1024
int main( int argc, char **argv )
{
	int	sockfd, n;
	char	recvline[ MAXLINE + 1 ];
	struct	sockaddr_in	servaddr;

	if ( argc != 2 ){
		printf("usage:a.out <IPaddress>");
		exit(1);
	}
	if ( ( sockfd = socket( AF_INET, SOCK_STREAM, 0 ) ) < 0 ){
		printf("socket error\n");
		exit(1);
	}
	bzero( &servaddr, sizeof( servaddr ) );
	servaddr.sin_family = AF_INET;
	servaddr.sin_port = htons( 13 );
//	servaddr.sin_addr.s_addr = inet_addr("127.0.0.1");

	if ( inet_pton( AF_INET, argv[ 1 ], &servaddr.sin_addr ) <= 0 ){
		printf("inet_pton error for %s", argv[1]);
		exit(1);
	}

	if ( connect( sockfd, ( SA * )&servaddr, sizeof( servaddr ) ) < 0 ){
		printf("connect error\n");
		exit(1);
	}

	while ( ( n = read( sockfd, recvline, MAXLINE )) > 0){
		recvline[n] = 0;
		if (fputs(recvline, stdout) == EOF){
			printf("fputs error\n");
			exit(1);
		}
	}
	if (n < 0){
		printf("read error\n");
		exit(1);
	}

	exit(0);
}

但是我用gdb调试的时候，发现在connect出报错。错误errno为111，errno.111 is: Connection refused。
请大神看看，这到底哪里出错啊。我是照搬UNP这本书上的例子的啊。
PS：昨晚发表，结果没人回答....也不知道问题出在哪里。。。。所以再次发表，希望能有人帮忙。我已经调试这个程序一个小时了，还是没有任何的眉目。

[小笨和漂向北方]

u probably need root access if u want to bind to a port with the number less than 1024...

[fzyz_sb]

引用 1 楼 micropentium6 的回复:

u probably need root access if u want to bind to a port with the number less than 1024...

但是我试过用高于1024的端口，比如6666，也是出错的。

[小笨和漂向北方]

引用 2 楼 fzyz_sb 的回复:

[quote=引用 1 楼 micropentium6 的回复:] u probably need root access if u want to bind to a port with the number less than 1024...

但是我试过用高于1024的端口，比如6666，也是出错的。[/quote] same error?

[fzyz_sb]

引用 1 楼 micropentium6 的回复:

u probably need root access if u want to bind to a port with the number less than 1024...

问题发现了，是我粗心，把htos(13)写成htol(13)。刚刚学习，也不知道这两个函数的作用。分数还是都给你哦^_^