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Telnet: code cleanup, no semantic changes. 

git-svn-id: svn://kolibrios.org@5858 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
hidnplayr 2015-10-25 12:04:33 +00:00
parent cf26ff1759
commit 026a30e72b
1 changed files with 42 additions and 88 deletions
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130
programs/network/telnet/telnet.asm
View File

@ -1,6 +1,6 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2010-2013. All rights reserved. ;;
;; Copyright (C) KolibriOS team 2010-2015. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;; telnet.asm - Telnet client for KolibriOS ;;
@ -14,8 +14,6 @@
format binary as ""
__DEBUG__ = 0
__DEBUG_LEVEL__ = 1
BUFFERSIZE = 4096
use32
@ -33,7 +31,6 @@ include '../../macros.inc'
purge mov,add,sub
include '../../proc32.inc'
include '../../dll.inc'
include '../../debug-fdo.inc'
include '../../network.inc'
; entry point
@ -43,45 +40,34 @@ start:
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]
invoke con_start, 1
invoke con_init, 80, 25, 80, 25, title
; Check for parameters
cmp byte [hostname], 0
cmp byte[hostname], 0
jne resolve
main:
call [con_cls]
invoke con_cls
; Welcome user
push str1
call [con_write_asciiz]
invoke con_write_asciiz, str1
prompt:
; write prompt
push str2
call [con_write_asciiz]
; read string
invoke con_write_asciiz, str2
; read string (wait for input)
mov esi, hostname
push 256
push esi
call [con_gets]
invoke con_gets, esi, 256
; check for exit
test eax, eax
jz done
cmp byte [esi], 10
cmp byte[esi], 10
jz done
resolve:
mov [sockaddr1.port], 23 shl 8 ; Port is in network byte order
mov [sockaddr1.port], 23 shl 8
; delete terminating '\n'
; delete terminating newline from URL and parse port, if any.
mov esi, hostname
@@:
lodsb
@ -89,22 +75,22 @@ resolve:
je .do_port
cmp al, 0x20
ja @r
mov byte [esi-1], 0
mov byte[esi-1], 0
jmp .done
.do_port:
xor eax, eax
xor ebx, ebx
mov byte [esi-1], 0
mov byte[esi-1], 0
.portloop:
lodsb
cmp al, 0x20
cmp al, ' '
jbe .port_done
sub al, '0'
jb hostname_error
cmp al, 9
ja hostname_error
lea ebx, [ebx*4 + ebx]
lea ebx, [ebx*4+ebx]
shl ebx, 1
add ebx, eax
jmp .portloop
@ -117,42 +103,30 @@ resolve:
; resolve name
push esp ; reserve stack place
push esp ; ptr to result
push 0 ; addrinfo hints
push 0 ; servname
push hostname; hostname
call [getaddrinfo]
invoke getaddrinfo, hostname, 0, 0, esp
pop esi
; test for error
test eax, eax
jnz dns_error
call [con_cls]
push str3
call [con_write_asciiz]
push hostname
call [con_write_asciiz]
invoke con_cls
invoke con_write_asciiz, str3
invoke con_write_asciiz, hostname
; write results
push str8
call [con_write_asciiz]
; mov edi, esi
invoke con_write_asciiz, str8
; 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]
invoke inet_ntoa, eax
; write result
push eax
call [con_write_asciiz]
invoke con_write_asciiz, eax
; free allocated memory
push esi
call [freeaddrinfo]
invoke freeaddrinfo, esi
push str9
call [con_write_asciiz]
invoke con_write_asciiz, str9
mcall socket, AF_INET4, SOCK_STREAM, 0
cmp eax, -1
@ -163,8 +137,8 @@ resolve:
test eax, eax
jnz socket_err
mcall 40, 1 shl 7 ; + 7
call [con_cls]
mcall 40, EVM_STACK
invoke con_cls
mcall 18, 7
push eax
@ -173,7 +147,7 @@ resolve:
mcall 18, 3
mainloop:
call [con_get_flags]
invoke con_get_flags
test eax, 0x200 ; con window closed?
jnz exit
@ -181,18 +155,15 @@ mainloop:
cmp eax, -1
je closed
DEBUGF 1, 'TELNET: got %u bytes of data !\n', eax
mov esi, buffer_ptr
lea edi, [esi + eax]
mov byte [edi], 0
lea edi, [esi+eax]
mov byte[edi], 0
.scan_cmd:
cmp byte [esi], 0xff ; Interpret As Command
cmp byte[esi], 0xff ; Interpret As Command
jne .no_cmd
; TODO: parse options, for now, we will reply with 'WONT' to everything
mov byte [esi + 1], 252 ; WONT
; TODO: parse options
; for now, we will reply with 'WONT' to everything
mov byte[esi+1], 252 ; WONT
add esi, 3 ; a command is always 3 bytes
jmp .scan_cmd
.no_cmd:
@ -200,8 +171,6 @@ mainloop:
cmp esi, buffer_ptr
je .print
DEBUGF 1, 'TELNET: sending data\n'
push esi edi
sub esi, buffer_ptr
mcall send, [socketnum], buffer_ptr, , 0
@ -211,8 +180,7 @@ mainloop:
cmp esi, edi
jae mainloop
push esi
call [con_write_asciiz]
invoke con_write_asciiz, esi
.loop:
lodsb
@ -222,32 +190,23 @@ mainloop:
socket_err:
DEBUGF 1, "TELNET: socket error %d", ebx
push str6
call [con_write_asciiz]
invoke con_write_asciiz, str6
jmp prompt
dns_error:
DEBUGF 1, "TELNET: DNS error %d", eax
push str5
call [con_write_asciiz]
invoke con_write_asciiz, str5
jmp prompt
hostname_error:
push str11
call [con_write_asciiz]
invoke con_write_asciiz, str11
jmp prompt
closed:
push str12
call [con_write_asciiz]
invoke con_write_asciiz, str12
jmp prompt
done:
push 1
call [con_exit]
invoke con_exit, 1
exit:
mcall close, [socketnum]
@ -258,7 +217,7 @@ exit:
thread:
mcall 40, 0
.loop:
call [con_getch2]
invoke con_getch2
mov [send_data], ax
xor esi, esi
inc esi
@ -268,7 +227,7 @@ thread:
@@:
mcall send, [socketnum], send_data
call [con_get_flags]
invoke con_get_flags
test eax, 0x200 ; con window closed?
jz .loop
mcall -1
@ -298,11 +257,6 @@ sockaddr1:
.ip dd 0
rb 10
include_debug_strings ; ALWAYS present in data section
; import
align 4
@IMPORT: