remove unused source file.

bsp/dm365/applications/ftpd.c

@@ -1,985 +0,0 @@
-#include <string.h>
-#include <stdlib.h>
-
-#include <rtthread.h>
-#include <dfs_posix.h>
-#include <lwip/sockets.h>
-#include <time.h>
-
-#define FTP_PORT			21
-#define FTP_SRV_ROOT		"/"
-#define FTP_MAX_CONNECTION	2
-#define FTP_USER			"rtt"
-#define FTP_PASSWORD		"demo"
-#define FTP_WELCOME_MSG		"220 welcome on RT-Thread FTP server.\r\n"
-#define FTP_BUFFER_SIZE		8192
-
-#define INET_ADDRSTRLEN 16
-
-
-struct ftp_session
-{
-	rt_bool_t is_anonymous;
-
-	int sockfd;
-	struct sockaddr_in remote;
-	struct sockaddr_in server;
-
-	char serveraddr[INET_ADDRSTRLEN];
-
-	/* pasv data */
-	int  pasv_listen_sockfd;
-	char pasv_active;
-	int  pasv_sockfd;
-
-	unsigned short pasv_port;
-	size_t offset;
-
-	/* current directory */
-	char currentdir[256];
-
-	struct ftp_session* next;
-};
-static struct ftp_session* session_list = NULL;
-
-int ftp_process_request(struct ftp_session* session, char * buf);
-int ftp_get_filesize(char *filename);
-
-struct ftp_session* ftp_new_session()
-{
-	struct ftp_session* session;
-
-	session = (struct ftp_session*)rt_malloc(sizeof(struct ftp_session));
-	rt_memset((void *)session, 0, sizeof(struct ftp_session));
-
-	session->next = session_list;
-	session_list = session;
-
-	return session;
-}
-
-void ftp_close_session(struct ftp_session* session)
-{
-	struct ftp_session* list;
-
-	if (session_list == session)
-	{
-		session_list = session_list->next;
-		session->next = NULL;
-	}
-	else
-	{
-		list = session_list;
-		while (list->next != session) list = list->next;
-
-		list->next = session->next;
-		session->next = NULL;
-	}
-
-	rt_free(session);
-}
-
-static int open_data_connection(struct ftp_session* session)
-{
-	socklen_t len = sizeof(struct sockaddr);
-	struct sockaddr_in sin;
-#if 0
-	/* Previous PORT command from client */
-	if (ctrl->data_address[0]) {
-		ctrl->data_sd = socket(AF_INET, SOCK_STREAM, 0);
-		if (-1 == ctrl->data_sd) {
-			printf("Failed creating data socket");
-			return -1;
-		}
-
-		memset(&sin, 0, sizeof(sin));
-		sin.sin_family = AF_INET;
-		sin.sin_port = htons(ctrl->data_port);
-		inet_aton(ctrl->data_address, &(sin.sin_addr));
-
-		if (connect(ctrl->data_sd, (struct sockaddr *)&sin, len) == -1) {
-			printf("Failed connecting data socket to client");
-			close(ctrl->data_sd);
-			ctrl->data_sd = -1;
-
-			return -1;
-		}
-
-		DBG("Connected successfully to client's previously requested address:PORT %s:%d", ctrl->data_address, ctrl->data_port);
-		return 0;
-	}
-#endif
-	/* Previous PASV command, accept connect from client */
-	if (session->pasv_listen_sockfd > 0) {
-		char client_ip[100];
-
-		session->pasv_sockfd = accept(session->pasv_listen_sockfd, (struct sockaddr *)&sin, &len);
-		if (-1 == session->pasv_sockfd) {
-			printf("Failed accepting connection from client");
-			return -1;
-		}
-
-		len = sizeof(struct sockaddr);
-		if (-1 == getpeername(session->pasv_sockfd, (struct sockaddr *)&sin, &len)) {
-			printf("Cannot determine client address");
-			closesocket(session->pasv_sockfd);
-			session->pasv_sockfd = -1;
-			return -1;
-		}
-
-		printf("Client PASV data connection from %s\n", inet_ntoa(sin.sin_addr));
-	}
-
-	return 0;
-}
-
-static void close_data_connection(struct ftp_session* session)
-{
-	/* PASV server listening socket */
-	if (session->pasv_listen_sockfd > 0) {
-		closesocket(session->pasv_listen_sockfd);
-		session->pasv_listen_sockfd = -1;
-	}
-
-	/* PASV client socket */
-	if (session->pasv_sockfd > 0) {
-		closesocket(session->pasv_sockfd);
-		session->pasv_sockfd = -1;
-	}
-#if 0
-	/* PORT */
-	if (ctrl->data_address[0]) {
-		ctrl->data_address[0] = 0;
-		ctrl->data_port = 0;
-	}
-#endif
-}
-
-
-int ftp_get_filesize(char * filename)
-{
-	int pos;
-	int end;
-	int fd;
-
-	fd = open(filename, O_RDONLY, 0);
-	if (fd < 0) return -1;
-
-	pos = lseek(fd, 0, SEEK_CUR);
-	end = lseek(fd, 0, SEEK_END);
-	lseek (fd, pos, SEEK_SET);
-	close(fd);
-
-	return end;
-}
-
-rt_bool_t is_absolute_path(char* path)
-{
-#ifdef _WIN32
-	if (path[0] == '\\' ||
-		(path[1] == ':' && path[2] == '\\'))
-		return RT_TRUE;
-#else
-	if (path[0] == '/') return RT_TRUE;
-#endif
-
-	return RT_FALSE;
-}
-
-int build_full_path(struct ftp_session* session, char* path, char* new_path, size_t size)
-{
-	if (is_absolute_path(path) == RT_TRUE)
-		strcpy(new_path, path);
-	else
-	{
-		rt_sprintf(new_path, "%s/%s", session->currentdir, path);
-	}
-
-	return 0;
-}
-
-void ftpd_thread_entry(void* parameter)
-{
-	int numbytes;
-	int sockfd, maxfdp1;
-	struct sockaddr_in local;
-	fd_set readfds, tmpfds;
-	struct ftp_session* session;
-	rt_uint32_t addr_len = sizeof(struct sockaddr);
-	char * buffer = (char *) rt_malloc(FTP_BUFFER_SIZE);
-
-	local.sin_port=htons(FTP_PORT);
-	local.sin_family=PF_INET;
-	local.sin_addr.s_addr=INADDR_ANY;
-
-	FD_ZERO(&readfds);
-	FD_ZERO(&tmpfds);
-
-	sockfd=socket(AF_INET, SOCK_STREAM, 0);
-	if(sockfd < 0)
-	{
-		rt_kprintf("create socket failed\n");
-		return ;
-	}
-
-	bind(sockfd, (struct sockaddr *)&local, addr_len);
-	listen(sockfd, FTP_MAX_CONNECTION);
-
-	FD_SET(sockfd, &readfds);
-	for(;;)
-	{
-	    /* get maximum fd */
-	    maxfdp1 = sockfd + 1;
-        session = session_list;
-	    while (session != RT_NULL)
-	    {
-	        if (maxfdp1 < session->sockfd + 1)
-                maxfdp1 = session->sockfd + 1;
-
-            FD_SET(session->sockfd, &readfds);
-            session = session->next;
-	    }
-
-		tmpfds=readfds;
-		if (select(maxfdp1, &tmpfds, 0, 0, 0) == 0) continue;
-
-		if(FD_ISSET(sockfd, &tmpfds))
-		{
-			int com_socket;
-			struct sockaddr_in remote;
-
-			com_socket = accept(sockfd, (struct sockaddr*)&remote, &addr_len);
-			if(com_socket == -1)
-			{
-				rt_kprintf("Error on accept()\nContinuing...\n");
-				continue;
-			}
-			else
-			{
-				rt_kprintf("Got connection from %s\n", inet_ntoa(remote.sin_addr));
-				send(com_socket, FTP_WELCOME_MSG, strlen(FTP_WELCOME_MSG), 0);
-				FD_SET(com_socket, &readfds);
-
-				/* new session */
-				session = ftp_new_session();
-				if (session != NULL)
-				{
-					if (-1 == getsockname(com_socket, (struct sockaddr *)&session->server, &addr_len)) {
-						printf("Cannot determine our address, need it if client should connect to us\n");
-					}
-					ipaddr_ntoa_r(&(session->server.sin_addr), session->serveraddr, sizeof(session->serveraddr));
-					strcpy(session->currentdir, FTP_SRV_ROOT);
-					session->sockfd = com_socket;
-					session->remote = remote;
-				}
-			}
-		}
-
-		{
-			struct ftp_session* next;
-
-			session = session_list;
-			while (session != NULL)
-			{
-				next = session->next;
-				if (FD_ISSET(session->sockfd, &tmpfds))
-				{
-					numbytes=recv(session->sockfd, buffer, FTP_BUFFER_SIZE, 0);
-					if(numbytes==0 || numbytes==-1)
-					{
-						rt_kprintf("Client %s disconnected\n", inet_ntoa(session->remote.sin_addr));
-						FD_CLR(session->sockfd, &readfds);
-						closesocket(session->sockfd);
-						session->sockfd = -1;
-						ftp_close_session(session);
-					}
-					else
-					{
-						buffer[numbytes]=0;
-						if(ftp_process_request(session, buffer)==-1)
-						{
-							rt_kprintf("Client %s disconnected\r\n", inet_ntoa(session->remote.sin_addr));
-							closesocket(session->sockfd);
-							session->sockfd = -1;
-							ftp_close_session(session);
-						}
-					}
-				}
-
-				session = next;
-			}
-		}
-	}
-
-	// rt_free(buffer);
-}
-
-int do_list(char* directory, int sockfd)
-{
-	DIR* dirp;
-	struct dirent* entry;
-	char line_buffer[256], line_length;
-#ifdef _WIN32
-	struct _stat s;
-#else
-	struct stat s;
-#endif
-
-	dirp = opendir(directory);
-	if (dirp == NULL)
-	{
-		line_length = rt_sprintf(line_buffer, "500 Internal Error\r\n");
-		send(sockfd, line_buffer, line_length, 0);
-		return -1;
-	}
-
-	while (1)
-	{
-		entry = readdir(dirp);
-		if (entry == NULL) break;
-
-		rt_sprintf(line_buffer, "%s/%s", directory, entry->d_name);
-#ifdef _WIN32
-		if (_stat(line_buffer, &s) ==0)
-#else
-		if (stat(line_buffer, &s) == 0)
-#endif
-		{
-			if (s.st_mode & S_IFDIR)
-				line_length = rt_sprintf(line_buffer, "drw-r--r-- 1 admin admin %d Jan 1 2000 %s\r\n", 0, entry->d_name);
-			else
-				line_length = rt_sprintf(line_buffer, "-rw-r--r-- 1 admin admin %d Jan 1 2000 %s\r\n", s.st_size, entry->d_name);
-
-			send(sockfd, line_buffer, line_length, 0);
-		}
-		else
-		{
-			rt_kprintf("Get directory entry error\n");
-			break;
-		}
-	}
-
-	closedir(dirp);
-	return 0;
-}
-
-int do_simple_list(char* directory, int sockfd)
-{
-	DIR* dirp;
-	struct dirent* entry;
-	char line_buffer[256], line_length;
-
-	dirp = opendir(directory);
-	if (dirp == NULL)
-	{
-		line_length = rt_sprintf(line_buffer, "500 Internal Error\r\n");
-		send(sockfd, line_buffer, line_length, 0);
-		return -1;
-	}
-
-	while (1)
-	{
-		entry = readdir(dirp);
-		if (entry == NULL) break;
-
-		line_length = rt_sprintf(line_buffer, "%s\r\n", entry->d_name);
-		send(sockfd, line_buffer, line_length, 0);
-	}
-
-	closedir(dirp);
-	return 0;
-}
-
-int str_begin_with(char* src, char* match)
-{
-	while (*match)
-	{
-		/* check source */
-		if (*src == 0) return -1;
-
-		if (*match != *src) return -1;
-		match ++; src ++;
-	}
-
-	return 0;
-}
-
-int ftp_process_request(struct ftp_session* session, char *buf)
-{
-	int  fd;
-	struct timeval tv;
-	fd_set readfds;
-	char filename[256];
-	int  numbytes;
-	char *sbuf;
-	char *parameter_ptr, *ptr;
-	rt_uint32_t addr_len = sizeof(struct sockaddr_in);
-	struct sockaddr_in local, pasvremote;
-
-	sbuf =(char *)rt_malloc(FTP_BUFFER_SIZE);
-
-	tv.tv_sec=3, tv.tv_usec=0;
-	local.sin_family=PF_INET;
-	local.sin_addr.s_addr=INADDR_ANY;
-
-	/* remove \r\n */
-	ptr = buf;
-	while (*ptr)
-	{
-		if (*ptr == '\r' || *ptr == '\n') *ptr = 0;
-		ptr ++;
-	}
-
-	/* get request parameter */
-	parameter_ptr = strchr(buf, ' '); if (parameter_ptr != NULL) parameter_ptr ++;
-
-	// debug:
-	rt_kprintf("%s requested: \"%s\"\n", inet_ntoa(session->remote.sin_addr), buf);
-
-	//
-	//-----------------------
-	if(str_begin_with(buf, "USER")==0)
-	{
-		rt_kprintf("%s sent login \"%s\"\n", inet_ntoa(session->remote.sin_addr), parameter_ptr);
-		// login correct
-		if(strcmp(parameter_ptr, "anonymous") == 0)
-		{
-			session->is_anonymous = RT_TRUE;
-			rt_sprintf(sbuf, "331 Anonymous login OK send e-mail address for password.\r\n", parameter_ptr);
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-		}
-		else if (strcmp(parameter_ptr, FTP_USER) == 0)
-		{
-			session->is_anonymous = RT_FALSE;
-			rt_sprintf(sbuf, "331 Password required for %s\r\n", parameter_ptr);
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-		}
-		else
-		{
-			// incorrect login
-			rt_sprintf(sbuf, "530 Login incorrect. Bye.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-			rt_free(sbuf);
-			return -1;
-		}
-		return 0;
-	}
-	else if(str_begin_with(buf, "PASS")==0)
-	{
-		rt_kprintf("%s sent password \"%s\"\n", inet_ntoa(session->remote.sin_addr), parameter_ptr);
-		if (strcmp(parameter_ptr, FTP_PASSWORD)==0 ||
-			session->is_anonymous == RT_TRUE)
-		{
-			// password correct
-			rt_sprintf(sbuf, "230 User logged in.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-			rt_free(sbuf);
-			return 0;
-		}
-
-		// incorrect password
-		rt_sprintf(sbuf, "530 Login or Password incorrect. Bye!\r\n");
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-		rt_free(sbuf);
-		return -1;
-	}
-	else if(str_begin_with(buf, "LIST")==0  )
-	{
-		memset(sbuf,0,FTP_BUFFER_SIZE);
-		open_data_connection(session);
-		rt_sprintf(sbuf, "150 Opening Binary mode connection for file list.\r\n");
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-		do_list(session->currentdir, session->pasv_sockfd);
-		close_data_connection(session);
-		session->pasv_active = 0;
-		rt_sprintf(sbuf, "226 Transfert Complete.\r\n");
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-	}
-	else if(str_begin_with(buf, "NLST")==0 )
-	{
-		memset(sbuf, 0, FTP_BUFFER_SIZE);
-		rt_sprintf(sbuf, "150 Opening Binary mode connection for file list.\r\n");
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-		open_data_connection(session);
-		do_simple_list(session->currentdir, session->pasv_sockfd);
-		close_data_connection(session);
-		session->pasv_active = 0;
-		rt_sprintf(sbuf, "226 Transfert Complete.\r\n");
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-	}
-	else if(str_begin_with(buf, "PWD")==0 || str_begin_with(buf, "XPWD")==0)
-	{
-		rt_sprintf(sbuf, "257 \"%s\" is current directory.\r\n", session->currentdir);
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-	}
-	else if(str_begin_with(buf, "TYPE")==0)
-	{
-		// Ignore it
-		if(strcmp(parameter_ptr, "I")==0)
-		{
-			rt_sprintf(sbuf, "200 Type set to binary.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-		}
-		else
-		{
-			rt_sprintf(sbuf, "200 Type set to ascii.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-		}
-	}
-	else if(str_begin_with(buf, "PASV")==0)
-	{
-		int dig1, dig2;
-		//int sockfd;
-		int optval=1;
-		int port;
-		struct sockaddr_in data;
-		socklen_t len = sizeof(struct sockaddr);
-		char *msg, *p;
-
-		if (session->pasv_sockfd > 0) {
-			closesocket(session->pasv_sockfd);
-			session->pasv_sockfd = -1;
-		}
-
-		if (session->pasv_listen_sockfd > 0)
-			closesocket(session->pasv_listen_sockfd);
-
-		session->pasv_port = 10000;
-		session->pasv_active = 1;
-		local.sin_port=htons(session->pasv_port);
-		local.sin_addr.s_addr=INADDR_ANY;
-
-		dig1 = (int)(session->pasv_port/256);
-		dig2 = session->pasv_port % 256;
-
-		FD_ZERO(&readfds);
-		if((session->pasv_listen_sockfd=socket(PF_INET, SOCK_STREAM, 0))==-1)
-		{
-			rt_sprintf(sbuf, "425 Can't open data connection0.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-			goto err1;
-		}
-		if(setsockopt(session->pasv_listen_sockfd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval))==-1)
-		{
-			rt_sprintf(sbuf, "425 Can't open data connection1.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-			goto err1;
-		}
-		if(bind(session->pasv_listen_sockfd, (struct sockaddr *)&local, addr_len)==-1)
-		{
-			rt_sprintf(sbuf, "425 Can't open data connection2.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-			goto err1;
-		}
-		if(listen(session->pasv_listen_sockfd, 1)==-1)
-		{
-			rt_sprintf(sbuf, "425 Can't open data connection3.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-			goto err1;
-		}
-		if (-1 == getsockname(session->pasv_listen_sockfd, (struct sockaddr *)&data, &len)) {
-			rt_kprintf("Cannot determine our address, need it if client should connect to us\n");
-			goto err1;
-		}
-
-		port = ntohs(data.sin_port);
-		rt_kprintf("Port %d\n", port);
-
-		/* Convert server IP address and port to comma separated list */
-		msg = strdup(session->serveraddr);
-		if (!msg) {
-			rt_sprintf(sbuf, "426 Internal server error.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-			goto err1;
-		}
-		p = msg;
-		while ((p = strchr(p, '.')))
-			*p++ = ',';
-	
-		rt_kprintf("Listening %d seconds @ port %d\n", tv.tv_sec, session->pasv_port);
-		rt_sprintf(sbuf, "227 Entering passive mode (%s,%d,%d)\r\n", msg, port / 256, port % 256);
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-		rt_free(sbuf);
-		rt_free(msg);
-		return 0;
-	#if 0
-		FD_SET(sockfd, &readfds);
-		select(0, &readfds, 0, 0, &tv);
-		if(FD_ISSET(sockfd, &readfds))
-		{
-			if((session->pasv_sockfd = accept(sockfd, (struct sockaddr*)&pasvremote, &addr_len))==-1)
-			{
-				rt_sprintf(sbuf, "425 Can't open data connection4.\r\n");
-				send(session->sockfd, sbuf, strlen(sbuf), 0);
-				goto err1;
-			}
-			else
-			{
-				rt_kprintf("Got Data(PASV) connection from %s\n", inet_ntoa(pasvremote.sin_addr));
-				session->pasv_active = 1;
-				closesocket(sockfd);
-			}
-		}
-		else
-		{
-err1:
-			closesocket(session->pasv_sockfd);
-			session->pasv_active = 0;
-			rt_free(sbuf);
-			return 0;
-		}
-	#endif
-err1:
-		close_data_connection(session);
-		session->pasv_active = 0;
-		rt_free(sbuf);
-		rt_free(msg);
-		return 0;
-
-	}
-	else if (str_begin_with(buf, "RETR")==0)
-	{
-		int file_size;
-
-		open_data_connection(session);
-
-		strcpy(filename, buf + 5);
-
-		build_full_path(session, parameter_ptr, filename, 256);
-		file_size = ftp_get_filesize(filename);
-		if (file_size == -1)
-		{
-			rt_sprintf(sbuf, "550 \"%s\" : not a regular file\r\n", filename);
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-			session->offset=0;
-			close_data_connection(session);
-			rt_free(sbuf);
-			return 0;
-		}
-
-		fd = open(filename, O_RDONLY, 0);
-		if (fd < 0)
-		{
-			close_data_connection(session);
-			rt_free(sbuf);
-			return 0;
-		}
-
-		if(session->offset>0 && session->offset < file_size)
-		{
-			lseek(fd, session->offset, SEEK_SET);
-			rt_sprintf(sbuf, "150 Opening binary mode data connection for partial \"%s\" (%d/%d bytes).\r\n",
-				filename, file_size - session->offset, file_size);
-		}
-		else
-		{
-			rt_sprintf(sbuf, "150 Opening binary mode data connection for \"%s\" (%d bytes).\r\n", filename, file_size);
-		}
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-		while((numbytes = read(fd, sbuf, FTP_BUFFER_SIZE))>0)
-		{
-			send(session->pasv_sockfd, sbuf, numbytes, 0);
-		}
-		rt_sprintf(sbuf, "226 Finished.\r\n");
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-		close(fd);
-		close_data_connection(session);
-	}
-	else if (str_begin_with(buf, "STOR")==0)
-	{
-		open_data_connection(session);
-		if(session->is_anonymous == RT_TRUE)
-		{
-			rt_sprintf(sbuf, "550 Permission denied.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-			close_data_connection(session);
-			rt_free(sbuf);
-			return 0;
-		}
-
-		build_full_path(session, parameter_ptr, filename, 256);
-
-		fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0);
-		if(fd < 0)
-		{
-			rt_sprintf(sbuf, "550 Cannot open \"%s\" for writing.\r\n", filename);
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-			close_data_connection(session);
-			rt_free(sbuf);
-			return 0;
-		}
-		rt_sprintf(sbuf, "150 Opening binary mode data connection for \"%s\".\r\n", filename);
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-		FD_ZERO(&readfds);
-		FD_SET(session->pasv_sockfd, &readfds);
-		rt_kprintf("Waiting %d seconds for data...\n", tv.tv_sec);
-		while(select(session->pasv_sockfd+1, &readfds, 0, 0, &tv)>0 )
-		{
-			if((numbytes=recv(session->pasv_sockfd, sbuf, FTP_BUFFER_SIZE, 0))>0)
-			{
-				write(fd, sbuf, numbytes);
-			}
-			else if(numbytes==0)
-			{
-				close(fd);
-				close_data_connection(session);
-				rt_sprintf(sbuf, "226 Finished.\r\n");
-				send(session->sockfd, sbuf, strlen(sbuf), 0);
-				break;
-			}
-			else if(numbytes==-1)
-			{
-				close(fd);
-				close_data_connection(session);
-				rt_free(sbuf);
-				return -1;
-			}
-		}
-		close_data_connection(session);
-	}
-	else if(str_begin_with(buf, "SIZE")==0)
-	{
-		int file_size;
-
-		build_full_path(session, parameter_ptr, filename, 256);
-
-		file_size = ftp_get_filesize(filename);
-		if( file_size == -1)
-		{
-			rt_sprintf(sbuf, "550 \"%s\" : not a regular file\r\n", filename);
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-		}
-		else
-		{
-			rt_sprintf(sbuf, "213 %d\r\n", file_size);
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-		}
-	}
-	else if(str_begin_with(buf, "MDTM")==0)
-	{
-		rt_sprintf(sbuf, "550 \"/\" : not a regular file\r\n");
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-	}
-	else if(str_begin_with(buf, "SYST")==0)
-	{
-		rt_sprintf(sbuf, "215 %s\r\n", "RT-Thread RTOS");
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-	}
-	else if(str_begin_with(buf, "CWD")==0)
-	{
-		build_full_path(session, parameter_ptr, filename, 256);
-
-		rt_sprintf(sbuf, "250 Changed to directory \"%s\"\r\n", filename);
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-		strcpy(session->currentdir, filename);
-		rt_kprintf("Changed to directory %s", filename);
-	}
-	else if(str_begin_with(buf, "CDUP")==0)
-	{
-		rt_sprintf(filename, "%s/%s", session->currentdir, "..");
-
-		rt_sprintf(sbuf, "250 Changed to directory \"%s\"\r\n", filename);
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-		strcpy(session->currentdir, filename);
-		rt_kprintf("Changed to directory %s", filename);
-	}
-	else if(str_begin_with(buf, "PORT")==0)
-	{
-		int i;
-		int portcom[6];
-		char tmpip[100];
-
-		i=0;
-		portcom[i++]=atoi(strtok(parameter_ptr, ".,;()"));
-		for(;i<6;i++)
-			portcom[i]=atoi(strtok(0, ".,;()"));
-		rt_sprintf(tmpip, "%d.%d.%d.%d", portcom[0], portcom[1], portcom[2], portcom[3]);
-
-		FD_ZERO(&readfds);
-		if((session->pasv_sockfd=socket(AF_INET, SOCK_STREAM, 0))==-1)
-		{
-			rt_sprintf(sbuf, "425 Can't open data connection.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-			closesocket(session->pasv_sockfd);
-			session->pasv_active = 0;
-			rt_free(sbuf);
-			return 0;
-		}
-		pasvremote.sin_addr.s_addr=inet_addr(tmpip);
-		pasvremote.sin_port=htons(portcom[4] * 256 + portcom[5]);
-		pasvremote.sin_family=PF_INET;
-		if(connect(session->pasv_sockfd, (struct sockaddr *)&pasvremote, addr_len)==-1)
-		{
-			// is it only local address?try using gloal ip addr
-			pasvremote.sin_addr=session->remote.sin_addr;
-			if(connect(session->pasv_sockfd, (struct sockaddr *)&pasvremote, addr_len)==-1)
-			{
-				rt_sprintf(sbuf, "425 Can't open data connection.\r\n");
-				send(session->sockfd, sbuf, strlen(sbuf), 0);
-				closesocket(session->pasv_sockfd);
-				rt_free(sbuf);
-				return 0;
-			}
-		}
-		session->pasv_active=1;
-		session->pasv_port = portcom[4] * 256 + portcom[5];
-		rt_kprintf("Connected to Data(PORT) %s @ %d\n", tmpip, portcom[4] * 256 + portcom[5]);
-		rt_sprintf(sbuf, "200 Port Command Successful.\r\n");
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-	}
-	else if(str_begin_with(buf, "REST")==0)
-	{
-		if(atoi(parameter_ptr)>=0)
-		{
-			session->offset=atoi(parameter_ptr);
-			rt_sprintf(sbuf, "350 Send RETR or STOR to start transfert.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-		}
-	}
-	else if(str_begin_with(buf, "MKD")==0)
-	{
-		if (session->is_anonymous == RT_TRUE)
-		{
-			rt_sprintf(sbuf, "530 Permission denied.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-			rt_free(sbuf);
-			return 0;
-		}
-
-		build_full_path(session, parameter_ptr, filename, 256);
-
-		if(mkdir(filename, 0) == -1)
-		{
-			rt_sprintf(sbuf, "550 File \"%s\" exists.\r\n", filename);
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-		}
-		else
-		{
-			rt_sprintf(sbuf, "257 directory \"%s\" successfully created.\r\n", filename);
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-		}
-	}
-	else if(str_begin_with(buf, "DELE")==0)
-	{
-		if (session->is_anonymous == RT_TRUE)
-		{
-			rt_sprintf(sbuf, "530 Permission denied.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-			rt_free(sbuf);
-			return 0;
-		}
-
-		build_full_path(session, parameter_ptr, filename, 256);
-
-		if(unlink(filename)==0)
-			rt_sprintf(sbuf, "250 Successfully deleted file \"%s\".\r\n", filename);
-		else
-		{
-			rt_sprintf(sbuf, "550 Not such file or directory: %s.\r\n", filename);
-		}
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-	}
-	else if(str_begin_with(buf, "RMD")==0)
-	{
-		if (session->is_anonymous == RT_TRUE)
-		{
-			rt_sprintf(sbuf, "530 Permission denied.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-			rt_free(sbuf);
-			return 0;
-		}
-		build_full_path(session, parameter_ptr, filename, 256);
-
-		if(unlink(filename) == -1)
-		{
-			rt_sprintf(sbuf, "550 Directory \"%s\" doesn't exist.\r\n", filename);
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-		}
-		else
-		{
-			rt_sprintf(sbuf, "257 directory \"%s\" successfully deleted.\r\n", filename);
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-		}
-	}
-	else if(str_begin_with(buf, "RNFR")==0)
-	{
-		if (session->is_anonymous == RT_TRUE)
-		{
-			rt_sprintf(sbuf, "530 Permission denied.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-			rt_free(sbuf);
-			return 0;
-		}
-		build_full_path(session, parameter_ptr, filename, 256);
-
-		rt_sprintf(sbuf, "350 Successfully rececive old file \"%s\".\r\n", filename);
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-	}
-	else if(str_begin_with(buf, "RNTO")==0)
-	{
-		char new_filename[256];
-		if (session->is_anonymous == RT_TRUE)
-		{
-			rt_sprintf(sbuf, "530 Permission denied.\r\n");
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-			rt_free(sbuf);
-			return 0;
-		}
-		build_full_path(session, parameter_ptr, new_filename, 256);
-
-		if(rename(filename, new_filename) == -1)
-		{
-			rt_sprintf(sbuf, "553 rename file \"%s\" error.\r\n", filename);
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-		}
-		else
-		{
-			rt_sprintf(sbuf, "250 Successfully rename to new file \"%s\".\r\n", filename);
-			send(session->sockfd, sbuf, strlen(sbuf), 0);
-		}
-	}
-	else if((str_begin_with(buf, "NOOP")==0) || str_begin_with(buf, "noop")==0)
-	{
-		rt_sprintf(sbuf, "200 noop!\r\n");
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-	}
-	else if(str_begin_with(buf, "QUIT")==0)
-	{
-		rt_sprintf(sbuf, "221 Bye!\r\n");
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-		rt_free(sbuf);
-		return -1;
-	}
-	else
-	{
-		rt_sprintf(sbuf, "502 Not Implemented.\r\n");
-		send(session->sockfd, sbuf, strlen(sbuf), 0);
-	}
-	rt_free(sbuf);
-	return 0;
-}
-
-void ftpd_start()
-{
-	rt_thread_t tid;
-
-	tid = rt_thread_create("ftpd",
-		ftpd_thread_entry, RT_NULL,
-		4096, 30, 5);
-	if (tid != RT_NULL) rt_thread_startup(tid);
-}
-
-#ifdef RT_USING_FINSH
-#include <finsh.h>
-FINSH_FUNCTION_EXPORT(ftpd_start, start ftp server);
-
-#ifdef FINSH_USING_MSH
-int cmd_ftpd_start(int argc, char** argv)
-{
-	ftpd_start();
-	return 0;
-}
-FINSH_FUNCTION_EXPORT_ALIAS(cmd_ftpd_start, __cmd_ftpd_start, start ftp server.);
-#endif
-
-#endif