Socket程序--编译后提示未定义标识？

[Xeric2003]

代码：
/一个SOCKET程序的客户端
#include<string.h>
#include<stdio.h>
#include<unistd.h>
#include<sys/socket.h>
#include<sys/types.h>
#include<netinet/in.h>
#include<netdb.h>
#define PORT 9311
#define SRV_ADDR "172.20.11.10"
main()
{
int sock_fd,len;
char * msg;
struct sockaddr_in srvaddr;
srvaddr.sin_family=AF_INET;
srvaddr.sin_port=htons(PORT);
srvaddr.sin_addr.s_addr=inet_addr(SRV_ADDR);
bzero(&(srvaddr.sin_zero));
socket(AF_INET,SOCK_STREAM,0);
if(sock_fd==-1)
{
printf("Create socket error !");
exit(1);
}
connect(sock_fd,(struct sockaddr *)&srvaddr,sizeof(struct sockaddr));
msg="你好，我在客户端向服务器问好！";
len=strlen(msg);
send(sock_fd,msg,len,0);
close(sock_fd);
}

我用cc client.c命令编译后出现如下错误，
错误：
undefined first referenced
symbol in file
htons client.o
inet_addr client.o
socket client.o
connect client.o
send client.o
i386ld fatal: Symbol referencing errors. No output written to a.out

恳请高人指点！小弟感激不尽！

[tukey]

up

[NC]

cc client.c -lsocket

[hualiu6688]

5G的清华大学教授讲课录像！ www.8cd.cn

[Xeric2003]

谢谢NC(NIECHUAN)、 hualiu6688（）