Download file with socket syscall Post: 302898440

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Top Forums Programming Download file with socket syscall Post 302898440 by recher.jack on Tuesday 22nd of April 2014 07:58:31 AM

04-22-2014

Registered User

Download file with socket syscall

Hello to all
I want download a file in osx intel 64 with NASM , I want to use socket syscall
This is part of my code

Code:

section .data
command      db "GET /test/2.gif HTTP/1.1\r\nHost: 10.1.1.187\r\n\r\n", 0
; url                   db "http://172.16.207.153/test/2.gif", 0

global main
section .text

main:    
      
    ;Socket
    mov rdx, 6                  ; rdx = IPPROTO_TCP = 6
    mov rsi, 1                  ; rsi = AF_NET = 1 
    mov rdi, 2                  ; rdi = SOCK_STREAM = 2 
    mov rax, 0x2000061            ; socket syscall = 97
    syscall                     ; call socket(SOCK_STREAM, AF_NET, IPPROTO_TCP);
    mov r12, rax                ; Save the socket
  
  
    ;Sock_addr
    mov r13, 0xB901010A50000101 ; IP = FFFFFFFF, Port = 5C11(4444)
    mov r9b, 0xFF               ; The sock_addr_in is + FF from where we need it
    sub r13, r9                 ; So we sub 0xFF from it to get the correct value and avoid a null
    push r13                    ; Push it on the stack
    mov r13, rsp                ; Save the sock_addr_in into r13
;       mov r13, 0xB901010A50000002 ; IP = 0A0101B9, Port = 50(80)
;       push r13                    ; Push it on the stack
;       mov r13, rsp                ; Save the sock_addr_in into r13
 
    ;Connect 
    mov rax, 0x2000062            ; connect syscall = 98
    mov rdi, r12                ; move the saved socket fd into rdi
    mov rsi, r13                ; move the saved sock_addr_in into rsi
    add rdx, 0x10               ; add 0x10 to rdx
    syscall                     ; call connect(rdi, rsi, rdx)
   
    ;sendto 
    mov rax, 0x2000085            ; connect syscall = 113
    mov rdi, r12                ; move the saved socket fd into rdi
 
 
   
  
    mov  r14 , command
    mov  rsi, r14                ; move the saved sock_addr_in into rsi
    
    mov  rdx, 0x2e               ; add 0x2e to rdx
    
    mov  rcx, 0
 
    mov  r8, r13
    
    mov  r9, 0x10
    
    syscall                     ; call sendto(rdi, rsi, rdx)
    
    mov     rdi, r12
    mov     rax, 0x2000006 ; close
    syscall
 
    mov     rax, 0x2000001 ; exit
    mov     rdi, 0x0
    syscall

In this code , I can create socket and connect and close it (I see it in wireshark and dtruss don't show error). but sendto syscall not send my command ( wireshark don't show my http request in flow tcp stream and dtruss show -1 err#22 for sendto in return value).

please help me .

Last edited by recher.jack; 04-23-2014 at 02:27 AM..

recher.jack

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LEARN ABOUT OSX

qtmodernizer

qtmodernizer(1) 					    BSD General Commands Manual 					   qtmodernizer(1)

NAME

     qtmodernizer

     -- Tool to convert legacy movies to modern format with minimal changes.

SYNOPSIS

     qtmodernizer [options ...] pathToSource [pathToDestination]

DESCRIPTION

     qtmodernizer is a command line tool to examine a media file which may be in a legacy format or may contain legacy media tracks. In this case
     a legacy format is one which cannot be read directly by CoreMedia or AVFoundation frameworks.

     qtmodernizer examines all the tracks to determine if they are all in a form that can currently be played. If all tracks are playable and the
     format is readable, qtmodernizer does returns and does nothing. If any of the audio or video tracks are encoded with a codec that CoreMedia
     does not support, that track will be converted to a modern format, usually H.264 for video and AAC for audio (see --useprores for other
     choices).

     Command line options of qtmodernize:

     -h | --help

     -p | --useprores
	      If -p or --useprores is specified, qtmodernizer will use the ProRes video codec and LPCM audio codec instead of H.264 and AAC-LC.
	      For video tracks it will produce AppleProRes422. For audio it will produce uncompressed output (lpcm). Tracks outher than audio or
	      video are not re-encoded and will not be affected. Either AppleProRes422 may be chosen or the AppleProRes4444 option may be chosen
	      but not both.

     -p4 | --useprores4444
	      If -p4 or --useprores4444 is specified, qtmodernizer will use the ProRes4444 video codec and LPCM audio codec instead of H.264 and
	      AAC-LC. For video tracks it will produce AppleProRes4444. For audio it will produce uncompressed output (lpcm). Tracks outher than
	      audio or video are not re-encoded and will not be affected. Either AppleProRes4444 may be chosen or the AppleProRes422 option may be
	      chosen but not both.

     -r | --replace
	      Normally qtmodernizer will not replace any existing files. If --replace is specified, a file already existing at the destination
	      path will be replaced by the new output.	qtmodernizer will not replace the file at original source path used in the command.

     -v | --verbose
	      Normally qtmodernizer only displays important error or warning messages. Specifying --verbose causes other information about the
	      modernization to be displayed on the command line. --infoonly implies --verbose.

     -i | --infoonly
	      Causes qtmodernizer to display information about the tracks contained in the source file and what the modernization process would be
	      for each track (if any) but does not actually produce an output file.

EXAMPLES

	  qtmodernize legacy_movie.mov modern_movie.mov

     Each legacy audio and video track would be re-encoded to a modern (H.264 or AAC) track with other tracks passed through. The resulting movie
     is saved as modern_movie.mov

	  qtmodernize -p legacy_movie.mov modern_movie.mov

     Legacy audio and video tracks would be re-encoded like in the above example but the resulting codecs would be ProRes for video and LPCM for
     audio

	  qtmodernize ~/Movies/legacy_movie.mov

     This command will create a modernized movie in the ~/Movies directory named "legacy_movie-modernized.mov"

HISTORY

     qtmodernizer command first appeared in Mac OS X 10.9.

Mac OS X							   June 2, 2019 							  Mac OS X