/*?header?files?*/
//????μ?÷get?put?￡¨“?≤?√???∫√?à‘??“’?—??‘??∫?…′￡¨mayan≤a––?6.3?20:00
#include	
#include????
#include????
#include	
#include		/*?getservbyname（）?gethostbyname（）?*/
#include		/*?for?definition?of?errno?*/
#include??????/*?for??inet_aton（）*/??????//?...................
#include??????/*?for??inet_aton（）*/??????//?...................
#include??????/*?for??inet_aton（）*/??????//?...................
#include????
#include????????/*?for?write?open?read?*/
#include?????????/*?for?read?write?open?*/
#include????
#include????????/*for?mask?password*/

#define?BACKLOG?10?/*??ó￥??¨?±?¨Ω”???????*/
/*?define?macros*/
#define?MAXBUF	1024
#define?STDIN_FILENO	0
#define?STDOUT_FILENO	1

#define?ECHOFLAGS?（ECHO?|?ECHOE?|?ECHOK?|?ECHONL）??//?/*for?mask?password*/
/*?define?FTP?reply?code?*/
#define?USERNAME	220
#define?PASSWORD	331
#define?LOGIN		230
#define?PATHNAME	257
#define?CLOSEDATA	226
#define?ACTIONOK	250

/*?DefinE?global?variables?*/
char	*host;		/*?hostname?or?dotted-decimal?string?*/
char	*port;
char	*rbuf?*rbuf1;		/*?pointer?that?is?malloc‘ed?*/
char	*wbuf?*wbuf1;		/*?pointer?that?is?malloc‘ed?*/
struct?sockaddr_in	servaddr;
struct?hostent?*hptr;
struct?in_addr?temporary_IP;
int?totalfilesize;
int?upfilesize;
struct?timeval?startstartup;
struct?timeval?endendup;
long?timeusedtimeusedup;
int?retransmit=0;
char?*thesize;
char?*limitspeed;

int?fileno（FILE?*stream）;
int?fstat（int?filedesstruct?stat?*buf）;
struct?stat?thefilestruct;
struct?stat?upfilestruct;
int	cliopen（char?*host?char?*port）;???/*?function?list?*/
void	strtosrv（char?*str?char?*host?char?*port）;
void	cmd_tcp（int?sockfd）;
void	ftp_list（int?sockfd）;
int	ftp_get（int?sck?char?*pDownloadFileName_s）;
int	ftp_put?（int?sck?char?*pUploadFileName_s）;
int?????flag_150=0;?//?to?distinguish?“l(fā)s“?and?“?get?[filename]“??instuction
int
main（int?argc?char?*argv[]）
{
????int	fd;
????//code?here:?Allocate?the?read?and?write?buffers?before?open（）.
????char?write_buffer[MAXBUF];??//?send?to?server
????char?read_buffer[MAXBUF];???//?get?from?server
????
	if?（0?!=?argc-2）
	{
		printf（“%s\n““missing?“）;
		exit（0）;
	}???//?end?of?if
????
	host?=?argv[1];
	port?=?“21“;
????
????rbuf=（char?*）malloc（MAXBUF）;
????rbuf1=（char?*）malloc（MAXBUF）;
????wbuf=（char?*）malloc（MAXBUF）;
????wbuf1=（char?*）malloc（MAXBUF）;
	fd?=?cliopen（host?port）;
????printf（“sockfd（the?first）?is?%d?\n“fd）;
	cmd_tcp（fd）;
????
	exit（0）;
}??//?end?of?main?function


/*?Establish?a?TCP?connection?from?client?to?server?*/
int?cliopen（char?*host?char?*port）
{
????int?a;?//?host?is?IP?or?domain?name
????int?sockfd;//?returned?socket?number
????int?send_length;
????int?receive_length;
????char?str[32];
????unsigned?short?echoServPort;
????char?*servIP;
????
????//?host?is?IP?or?domain?name
????a=inet_aton（host&temporary_IP）;
????printf（“flag?is?:?%d?（1?means?IP0

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????1216362??2013-06-17?19:23??ftpclt_2010215102_10212784&10212772_梁揚&王可惟.pdf

?????文件??????30658??2013-06-12?12:56??ftpclt_2010215102_10212784&10212772_梁揚&王可惟.c

-----------?---------??----------?-----??----

??????????????1247020????????????????????2