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Some FTP client demo code for the brave.

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git-svn-id: svn://kolibrios.org@3701 a494cfbc-eb01-0410-851d-a64ba20cac60
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hidnplayr 2013-06-24 19:33:16 +00:00
parent e787937c63
commit 1812e8064e
3 changed files with 534 additions and 0 deletions
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403
programs/network/ftpc/ftpc.asm Normal file
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; 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 ""
__DEBUG__ = 0
__DEBUG_LEVEL__ = 1
BUFFERSIZE = 1024
STATUS_CONNECTING = 0
STATUS_CONNECTED = 1
STATUS_NEEDPASSWORD = 2
STATUS_LOGGED_IN = 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 '../../debug-fdo.inc'
include '../../network.inc'
include 'usercommands.inc'
include 'servercommands.inc'
; entry point
start:
DEBUGF 1, "hello"
; load libraries
stdcall dll.Load, @IMPORT
test eax, eax
jnz exit
; initialize console
push 1
call [con_start]
push title
push 25
push 80
push 25
push 80
call [con_init]
; Check for parameters
cmp byte [s], 0
jne resolve
main:
call [con_cls]
; Welcome user
push str1
call [con_write_asciiz]
; write prompt
push str2
call [con_write_asciiz]
; read string
mov esi, s
push 256
push esi
call [con_gets]
; check for exit
test eax, eax
jz done
cmp byte [esi], 10
jz done
resolve:
; delete terminating '\n'
mov esi, s
@@:
lodsb
cmp al, 0x20
ja @r
mov byte [esi-1], 0
; call [con_cls]
push str3
call [con_write_asciiz]
push s
call [con_write_asciiz]
; resolve name
push esp ; reserve stack place
push esp ; fourth parameter
push 0 ; third parameter
push 0 ; second parameter
push s ; first parameter
call [getaddrinfo]
pop esi
; test for error
test eax, eax
jnz fail
; write results
push str8
call [con_write_asciiz]
; mov edi, esi
; convert IP address to decimal notation
mov eax, [esi+addrinfo.ai_addr]
mov eax, [eax+sockaddr_in.sin_addr]
mov [sockaddr1.ip], eax
push eax
call [inet_ntoa]
; write result
push eax
call [con_write_asciiz]
; free allocated memory
push esi
call [freeaddrinfo]
push str9
call [con_write_asciiz]
mcall socket, AF_INET4, SOCK_STREAM, 0
cmp eax, -1
je fail2
mov [socketnum], eax
push str11
call [con_write_asciiz]
mcall connect, [socketnum], sockaddr1, 18
mcall 40, EVM_STACK
mov [status], STATUS_CONNECTING
mov [offset], buffer_ptr
push str12
call [con_write_asciiz]
wait_for_serverdata:
mcall 10
call [con_get_flags]
test eax, 0x200 ; con window closed?
jnz exit
; receive socket data
mcall recv, [socketnum], [offset], BUFFERSIZE, 0
inc eax
jz wait_for_serverdata
dec eax
jz wait_for_serverdata
; extract commands, copy them to "s" buffer
add eax, buffer_ptr ; eax = end pointer
mov esi, buffer_ptr ; esi = current pointer
.nextcommand:
mov edi, s
.byteloop:
cmp esi, eax
jae wait_for_serverdata
lodsb
cmp al, 10 ; excellent, we might have a command
je .got_command
cmp al, 13 ; just ignore this crap
je .byteloop
stosb
jmp .byteloop
; we have a newline check if its a command
.got_command:
xor al, al
stosb
; push esi eax
; print it to the screen
pushd s
call [con_write_asciiz]
pushd str4 ; newline
call [con_write_asciiz]
; cmp byte[s+2], " "
; jne .not_command
lea ecx, [edi - s]
call server_parser
; .not_command:
; pop eax esi
; jmp .nextcommand
wait_for_usercommand:
cmp [status], STATUS_CONNECTED
je .connected
cmp [status], STATUS_NEEDPASSWORD
je .needpass
; write prompt
push str2
call [con_write_asciiz]
; read string
mov esi, s
push 256
push esi
call [con_gets]
call [con_get_flags]
test eax, 0x200 ; con window closed?
jnz exit
cmp dword[s], "list"
je cmd_list
cmp dword[s], "help"
je cmd_help
push str_unkown
call [con_write_asciiz]
jmp wait_for_usercommand
.connected:
push str_user
call [con_write_asciiz]
mov dword[s], "USER"
mov byte[s+4], " "
; mov [status], STATUS_NEEDPASSWORD
inc [status]
jmp .send
.needpass:
push str_pass
call [con_write_asciiz]
mov dword[s], "PASS"
mov byte[s+4], " "
; mov [status], STATUS_LOGGED_IN
inc [status]
.send:
; read string
mov esi, s+5
push 256
push esi
call [con_gets]
mov edi, s+5
mov ecx, 256
xor al, al
repne scasb
lea esi, [edi-s-1]
mcall send, [socketnum], s
jmp wait_for_usercommand
open_dataconnection:
cmp [status], STATUS_LOGGED_IN
jne .fail
mov dword[s], "PASV"
mov byte[s+4], 10
mcall send, [socketnum], s, 5
ret
.fail:
push str6
call [con_write_asciiz]
ret
fail2:
push str6
call [con_write_asciiz]
jmp fail.wait
fail:
push str5
call [con_write_asciiz]
.wait:
push str10
call [con_write_asciiz]
call [con_getch2]
jmp main
done:
push 1
call [con_exit]
exit:
mcall close, [socketnum]
mcall -1
; data
title db 'FTP client',0
str1 db 'FTP client for KolibriOS v0.01',10,10,'Please enter ftp server address.',10,0
str2 db '> ',0
str3 db 'Resolving ',0
str4 db 10,0
str5 db 10,'Name resolution failed.',10,0
str6 db 10,'Socket error.',10,0
str8 db ' (',0
str9 db ')',10,0
str10 db 'Push any key to continue.',0
str11 db 'Connecting',10,0
str12 db 'Connected!',10,0
str_user db "username: ",0
str_pass db "password: ",0
str_unkown db "unkown command",10,0
str_help db "available commands:",10,10
db "help list",10,0
str_open db "opening data socket",10,0
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
include_debug_strings ; ALWAYS present in data section
; 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'
i_end:
active_passive db ?
socketnum dd ?
datasocket dd ?
buffer_ptr rb 2*BUFFERSIZE
status db ?
offset dd ?
s rb 1024
mem:

114
programs/network/ftpc/servercommands.inc Normal file
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server_parser:
; Commands are always 3 numbers and followed by a space
; If a server decides it needs multiline output,
; first lines will have a dash instead of space after numbers,
; thus they are simply ignored.
cmp dword[s], "150 "
je data_ok
cmp dword[s], "220 "
je welcome
cmp dword[s], "227 "
je pasv_ok
cmp dword[s], "230 "
je login_ok
cmp dword[s], "331 "
je pass
ret
welcome:
mov [status], STATUS_CONNECTED
ret
pass:
mov [status], STATUS_NEEDPASSWORD
ret
login_ok:
mov [status], STATUS_LOGGED_IN
ret
pasv_ok:
sub ecx, 5
jb .fail
mov al, "("
mov edi, s + 5
repne scasb
mcall socket, AF_INET4, SOCK_STREAM, 0
cmp eax, -1
je fail
mov [datasocket], eax
mov esi, edi
call ascii_dec
mov byte[sockaddr2.ip+0], bl
call ascii_dec
mov byte[sockaddr2.ip+1], bl
call ascii_dec
mov byte[sockaddr2.ip+2], bl
call ascii_dec
mov byte[sockaddr2.ip+3], bl
call ascii_dec
mov byte[sockaddr2.port+1], bl
call ascii_dec
mov byte[sockaddr2.port+0], bl
push str_open
call [con_write_asciiz]
mcall connect, [datasocket], sockaddr2, 18
.fail:
ret
data_ok:
mcall recv, [datasocket], buffer_ptr, BUFFERSIZE, 0 ; fixme: use other buffer
inc eax
jz .fail
dec eax
jz .fail
mov byte[buffer_ptr + eax], 0
pushd buffer_ptr
call [con_write_asciiz]
.fail:
ret
ascii_dec:
xor ebx, ebx
mov cl, 3
.loop:
lodsb
sub al, '0'
jb .done
cmp al, 9
ja .done
lea ebx, [ebx*4+ebx]
shl ebx, 1
add bl, al
dec cl
jnz .loop
.done:
ret

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programs/network/ftpc/usercommands.inc Normal file
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cmd_list:
call open_dataconnection
mov dword[s], "LIST"
mov word[s+4], 0x0d0a
mcall send, [socketnum], s, 6
jmp wait_for_serverdata
cmd_help:
push str_help
call [con_write_asciiz]
jmp wait_for_usercommand