#include?
#include?
#include?
#include??
#include?
#include?
#include??
#include?
#include?
#include?
#include?

#define?FTP_DEFAULT_PORT?21

#define?SUCCESS?0

#define?MAX_STR_LEN?64

#define?MAX_BUF_LEN?4096

#define?MAX_FILE_NAME?255



/*?Global?Variables?*/
struct?sockaddr_in?Ftp_Server_ctrl_addr;???/*server‘s?address?for?ctrl?connection*/

struct?sockaddr_in?Ftp_Server_data_addr;???/*server‘s?address?for?data?connection*/

int?sockfd_ctrl;???????????/*?socket?for?control?connection?*/

int?sockfd_data;???????????/*?socket?for?data?connection?*/

char?ServerIP[MAX_STR_LEN];??????/*?Server‘s?ip?*/
?
int?ServerPort;??????/*?Server‘s?port?*/
??
char?User[MAX_STR_LEN];???????/*?user‘s??account?for?logining*/

char?Password[MAX_STR_LEN];???/*?user‘s?password?for?logining*/

char?MsgBuffer[MAX_BUF_LEN];

char?DataBuffer[MAX_BUF_LEN];

static?struct?termios?stored_settings;

/*?print?error?imformation?and?exit?program?*/
int?ErrorExit（const?char*?error）
{
??printf（“Error:?%s\n“error）;
??exit（-1）;
}
/*?
void?echo_off（void）
{
	struct?termios?new_settings;
??	tcgetattr（0&stored_settings）;
????new_settings?=?stored_settings;
	new_settings.c_lflag?&=?（~ECHO）;
	tcsetattr（0TCSANOW&new_settings）;
	return;
}
void?echo_on（void）
{
	tcsetattr（0TCSANOW&stored_settings）;
	return;
}
*/






/*********************************************send?and?receive?message************************************************/

/*?????send?control?command?to?server?with?specified?socket?descriptor?
?*?????COMMAND???or???COMMAND??
?*?????example:?“USER?anonymous\r\n“??or???“PWD\r\n“
?*/????
int?SendControlCommand（const?char*?cmd_code?const?char*?cmd_para）//?test?ok??by?myself
{
	char?SendBuffer[MAX_BUF_LEN];
	int?Length;
	int?SendRes;
	memset（SendBuffer?0?MAX_BUF_LEN）;
	if（cmd_code）
	{
		strcpy（SendBuffercmd_code）;
		if（cmd_para）
		{
??????strcat（SendBuffer“?“）;
			strcat（SendBuffercmd_para）;
			strcat（SendBuffer“\r\n“）;
		}
		else
			strcat（SendBuffer“\r\n“）;

			Length=strlen（SendBuffer）;
			SendRes?=?write（sockfd_ctrlSendBufferLength）;
	}
	return?SendRes;
}

/*?get?reply?message?from?server?*/?????????????????//test?ok
int?GetReplyMsg（void）
{
??int?count;
??int?reply;
??memset（MsgBuffer?0?MAX_BUF_LEN）;
??count?=?read（sockfd_ctrlMsgBufferMAX_BUF_LEN）;
??reply?=?atoi（MsgBuffer）;
??printf（“[Server?reply]????%s“?MsgBuffer）;
??return?reply;
}




/***************************************?login************************************/

/*?get?user‘s?account?from?stdin?*/
void?GetUserAccount（void）???????????????????????//test?ok
{
??char?buf[MAX_BUF_LEN];
??printf（“User:（Press?Enter?for?anonymous）:“）;
	fgets（bufsizeof（buf）stdin）;
	if（buf[0]==‘\n‘）
		strncpy（User“anonymous“9）;
	else
		strncpy（Userbufstrlen（buf）-1）;
//	printf（“User:%s\n“User）;

}

/*?get?user‘s?password?from?stdin*/
void?GetUserPasswd（void）???????????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????17499??2011-05-19?19:01??client
?????文件???????13655??2011-05-19?23:14??client.c