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