137 lines
2.4 KiB
NASM
137 lines
2.4 KiB
NASM
format binary as ""
|
|
|
|
use32
|
|
; standard header
|
|
db 'MENUET01' ; signature
|
|
dd 1 ; header version
|
|
dd start ; entry point
|
|
dd i_end ; initialized size
|
|
dd mem ; required memory
|
|
dd mem ; stack pointer
|
|
dd 0 ; parameters
|
|
dd 0 ; path
|
|
|
|
; useful includes
|
|
include '../../../../macros.inc'
|
|
purge mov,add,sub
|
|
include '../../../../proc32.inc'
|
|
include '../../../../dll.inc'
|
|
|
|
include '../../../../network.inc'
|
|
|
|
; entry point
|
|
start:
|
|
; load libraries
|
|
stdcall dll.Load, @IMPORT
|
|
test eax, eax
|
|
jnz exit
|
|
; initialize console
|
|
push 1
|
|
call [con_start]
|
|
push title
|
|
push -1
|
|
push -1
|
|
push -1
|
|
push -1
|
|
call [con_init]
|
|
; main loop
|
|
main:
|
|
; write prompt
|
|
push str1
|
|
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
|
|
; delete terminating '\n'
|
|
push esi
|
|
@@:
|
|
lodsb
|
|
test al, al
|
|
jnz @b
|
|
mov byte [esi-2], al
|
|
pop esi
|
|
; resolve name
|
|
push esp ; reserve stack place
|
|
push esp ; fourth parameter
|
|
push 0 ; third parameter
|
|
push 0 ; second parameter
|
|
push esi ; first parameter
|
|
call [getaddrinfo]
|
|
pop esi
|
|
; test for error
|
|
test eax, eax
|
|
jnz fail
|
|
; write results
|
|
push str2
|
|
call [con_write_asciiz]
|
|
mov edi, esi
|
|
addrloop:
|
|
; before all subsequent addresses print comma
|
|
cmp edi, esi
|
|
jz @f
|
|
push str3
|
|
call [con_write_asciiz]
|
|
@@:
|
|
; convert IP address to decimal notation
|
|
mov eax, [edi+addrinfo.ai_addr]
|
|
pushd [eax+sockaddr_in.sin_addr]
|
|
call [inet_ntoa]
|
|
; write result
|
|
push eax
|
|
call [con_write_asciiz]
|
|
; advance to next item
|
|
mov edi, [edi+addrinfo.ai_next]
|
|
test edi, edi
|
|
jnz addrloop
|
|
; free allocated memory
|
|
push esi
|
|
call [freeaddrinfo]
|
|
; write newline and continue main loop
|
|
push str4
|
|
@@:
|
|
call [con_write_asciiz]
|
|
jmp main
|
|
fail:
|
|
push str5
|
|
jmp @b
|
|
done:
|
|
push 1
|
|
call [con_exit]
|
|
exit:
|
|
mcall -1
|
|
|
|
; data
|
|
title db 'Names resolver',0
|
|
str1 db 'Host name to resolve: ',0
|
|
str2 db 'IP address(es): ',0
|
|
str3 db ', ',0
|
|
str4 db 10,0
|
|
str5 db 'Name resolution failed.',10,0
|
|
; 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'
|
|
i_end:
|
|
s rb 256
|
|
align 4
|
|
rb 4096 ; stack
|
|
mem:
|