;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2013. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; ftpc.asm - FTP client for KolibriOS ;;
;; ;;
;; Written by hidnplayr@kolibrios.org ;;
;; ;;
;; GNU GENERAL PUBLIC LICENSE ;;
;; Version 2, June 1991 ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
format binary as ""
BUFFERSIZE = 4096
STATUS_CONNECTING = 0
STATUS_CONNECTED = 1
STATUS_NEEDPASSWORD = 2
STATUS_LOGGED_IN = 3
OPERATION_NONE = 0
OPERATION_LIST = 1
OPERATION_RETR = 2
OPERATION_STOR = 3
use32
; standard header
db 'MENUET01' ; signature
dd 1 ; header version
dd start ; entry point
dd i_end ; initialized size
dd mem+0x1000 ; required memory
dd mem+0x1000 ; stack pointer
dd s ; parameters
dd 0 ; path
include '../../macros.inc'
purge mov,add,sub
include '../../proc32.inc'
include '../../dll.inc'
include '../../network.inc'
include 'usercommands.inc'
include 'servercommands.inc'
start:
; disable all events
mcall 40, 0
; load libraries
stdcall dll.Load, @IMPORT
test eax, eax
jnz exit
; initialize console
invoke con_start, 1
invoke con_init, 80, 25, 80, 250, str_title
; Check for parameters, if there are some, resolve the address right away
cmp byte [s], 0
jne resolve
main:
; Clear screen
invoke con_cls
; Welcome user
invoke con_write_asciiz, str_welcome
; write prompt (in green color)
invoke con_set_flags, 0x0a
invoke con_write_asciiz, str_prompt
; read string
invoke con_gets, s, 256
; check for exit
test eax, eax
jz done
cmp byte [s], 10
jz done
; reset color back to grey and print newline
invoke con_set_flags, 0x07
invoke con_write_asciiz, str_newline
resolve:
; delete terminating '\n'
mov esi, s
@@:
lodsb
cmp al, 0x20
ja @r
mov byte [esi-1], 0
; Say to the user that we're resolving
invoke con_write_asciiz, str_resolve
invoke con_write_asciiz, s
; resolve name
push esp ; reserve stack place
invoke getaddrinfo, s, 0, 0, esp
pop esi
; test for error
test eax, eax
jnz error_resolve
; write results
invoke con_write_asciiz, str8 ; ' (',0
mov eax, [esi+addrinfo.ai_addr] ; convert IP address to decimal notation
mov eax, [eax+sockaddr_in.sin_addr] ;
mov [sockaddr1.ip], eax ;
invoke inet_ntoa, eax ;
invoke con_write_asciiz, eax ; print ip
invoke freeaddrinfo, esi ; free allocated memory
invoke con_write_asciiz, str9 ; ')',10,0
; open the socket
mcall socket, AF_INET4, SOCK_STREAM, 0
cmp eax, -1
je error_socket
mov [socketnum], eax
; connect to the server
invoke con_write_asciiz, str_connect
mcall connect, [socketnum], sockaddr1, 18
mov [status], STATUS_CONNECTING
; Tell the user we're waiting for the server now.
invoke con_write_asciiz, str_waiting
; Reset 'offset' variable, it's used by the data receiver
mov [offset], 0
wait_for_servercommand:
; Any commands still in our buffer?
cmp [offset], 0
je .receive ; nope, receive some more
mov esi, [offset]
mov edi, s
mov ecx, [size]
add ecx, esi
jmp .byteloop
; receive socket data
.receive:
mcall recv, [socketnum], buffer_ptr, BUFFERSIZE, 0
inc eax
jz error_socket
dec eax
jz wait_for_servercommand
mov [offset], 0
; extract commands, copy them to "s" buffer
lea ecx, [eax + buffer_ptr] ; ecx = end pointer
mov esi, buffer_ptr ; esi = current pointer
mov edi, s
.byteloop:
cmp esi, ecx
jae wait_for_servercommand
lodsb
cmp al, 10 ; excellent, we might have a command
je .got_command
cmp al, 13 ; just ignore this byte
je .byteloop
stosb
jmp .byteloop
.got_command: ; we have a newline check if its a command
cmp esi, ecx
je .no_more_data
mov [offset], esi
sub ecx, esi
mov [size], ecx
jmp .go_cmd
.no_more_data:
mov [offset], 0
.go_cmd:
lea ecx, [edi - s] ; length of command
xor al, al
stosb
invoke con_set_flags, 0x03 ; change color
invoke con_write_asciiz, s ; print servercommand
invoke con_write_asciiz, str_newline
invoke con_set_flags, 0x07 ; reset color
jmp server_parser ; parse command
wait_for_usercommand:
; change color to green for user input
invoke con_set_flags, 0x0a
; If we are not yet connected, request username/password
cmp [status], STATUS_CONNECTED
je .connected
cmp [status], STATUS_NEEDPASSWORD
je .needpass
; write prompt
invoke con_write_asciiz, str_prompt
; read string
invoke con_gets, s, 256
; print a newline and reset the color back to grey
invoke con_write_asciiz, str_newline
invoke con_set_flags, 0x07
cmp dword[s], "cwd "
je cmd_cwd
cmp dword[s], "mkd "
je cmd_mkd
cmp dword[s], "rmd "
je cmd_rmd
cmp dword[s], "pwd" + 10 shl 24
je cmd_pwd
cmp dword[s], "bye" + 10 shl 24
je cmd_bye
cmp byte[s+4], " "
jne @f
cmp dword[s], "lcwd"
je cmd_lcwd
cmp dword[s], "retr"
je cmd_retr
cmp dword[s], "stor"
je cmd_stor
cmp dword[s], "dele"
je cmd_dele
@@:
cmp byte[s+4], 10
jne @f
cmp dword[s], "list"
je cmd_list
cmp dword[s], "help"
je cmd_help
cmp dword[s], "cdup"
je cmd_cdup
@@:
; Uh oh.. unknown command, tell the user and wait for new input
invoke con_write_asciiz, str_unknown
jmp wait_for_usercommand
.connected:
; request username
invoke con_write_asciiz, str_user
mov dword[s], "USER"
mov byte[s+4], " "
jmp .send
.needpass:
; request password
invoke con_write_asciiz, str_pass
mov dword[s], "PASS"
mov byte[s+4], " "
invoke con_set_flags, 0x00 ; black text on black background for password
.send:
; read string
mov esi, s+5
invoke con_gets, esi, 256
; find end of string
mov edi, s+5
mov ecx, 256
xor al, al
repne scasb
lea esi, [edi-s]
mov word[edi-2], 0x0a0d
; and send it to the server
mcall send, [socketnum], s, , 0
invoke con_write_asciiz, str_newline
invoke con_set_flags, 0x07 ; reset color
jmp wait_for_servercommand
open_dataconnection: ; only passive for now..
cmp [status], STATUS_LOGGED_IN
jne .fail
mcall send, [socketnum], str_PASV, str_PASV.length, 0
ret
.fail:
invoke con_get_flags
push eax
invoke con_set_flags, 0x0c ; print errors in red
invoke con_write_asciiz, str_err_socket
invoke con_set_flags ; reset color
ret
error_socket:
invoke con_set_flags, 0x0c ; print errors in red
invoke con_write_asciiz, str_err_socket
jmp wait_for_keypress
error_resolve:
invoke con_set_flags, 0x0c ; print errors in red
invoke con_write_asciiz, str_err_resolve
wait_for_keypress:
invoke con_set_flags, 0x07 ; reset color to grey
invoke con_write_asciiz, str_push
invoke con_getch2
mcall close, [socketnum]
jmp main
done:
invoke con_exit, 1
exit:
mcall close, [socketnum]
mcall -1
; data
str_title db 'FTP client',0
str_welcome db 'FTP client for KolibriOS v0.10',10
db 10
db 'Please enter ftp server address.',10,0
str_prompt db '> ',0
str_resolve db 'Resolving ',0
str_newline db 10,0
str_err_resolve db 10,'Name resolution failed.',10,0
str_err_socket db 10,'Socket error.',10,0
str8 db ' (',0
str9 db ')',10,0
str_push db 'Push any key to continue.',0
str_connect db 'Connecting...',10,0
str_waiting db 'Waiting for welcome message.',10,0
str_user db "username: ",0
str_pass db "password: ",0
str_unknown db "Unknown command or insufficient parameters - type help for more information.",10,0
str_lcwd db "Local working directory is now: ",0
str_open db "opening data socket",10,0
str_close db "closing data socket",10,0
str2b db '.',0
str_help db "available commands:",10
db 10
db "bye - close the connection",10
db "cdup - change to parent of current directory on the server",10
db "cwd <directory> - change working directoy on the server",10
db "dele <file> - delete file from the server",10
db "list - list files and folders in current server directory",10
db "lcwd <path> - change local working directory",10
db "mkd <directory> - make directory on the server",10
db "pwd - print server working directory",10
db "retr <file> - retreive file from the server",10
db "rmd <directory> - remove directory from the server",10
db "stor <file> - store file on the server",10
db 10,0
; FTP strings
str_PASV db 'PASV',13,10
.length = $ - str_PASV
sockaddr1:
dw AF_INET4
.port dw 0x1500 ; 21
.ip dd 0
rb 10
sockaddr2:
dw AF_INET4
.port dw 0
.ip dd 0
rb 10
; import
align 4
@IMPORT:
library network, 'network.obj', console, 'console.obj'
import network, \
getaddrinfo, 'getaddrinfo', \
freeaddrinfo, 'freeaddrinfo', \
inet_ntoa, 'inet_ntoa'
import console, \
con_start, 'START', \
con_init, 'con_init', \
con_write_asciiz,'con_write_asciiz', \
con_exit, 'con_exit', \
con_gets, 'con_gets',\
con_cls, 'con_cls',\
con_getch2, 'con_getch2',\
con_set_cursor_pos, 'con_set_cursor_pos',\
con_write_string, 'con_write_string',\
con_get_flags, 'con_get_flags', \
con_set_flags, 'con_set_flags'
i_end:
; uninitialised data
status db ?
active_passive db ?
socketnum dd ?
datasocket dd ?
offset dd ?
size dd ?
operation dd ?
filestruct:
.subfn dd ?
.offset dd ?
dd ?
.size dd ?
.ptr dd ?
.name rb 1024
buffer_ptr rb BUFFERSIZE+1
buffer_ptr2 rb BUFFERSIZE+1
s rb 1024
mem: