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skykrnl



Joined: 17 Nov 2008
Posts: 21
skykrnl
Code:
format pe dll
entry DllEntry
include 'Win32AXP.inc'

CallTest:
  ret
CallTest% = 5

proc DllEntry, hModule, ul_reason_for_call, lpReserved
  stdcall CallTest,1,2,3
      mov     eax,TRUE
    ret
endp

ExportApi01:
 ret

ExportApi02:
 ret

ExportApi03:
 ret

ExportApi04:
 ret

ExportApi05:
 ret




data export
  export  'ept',\
          ExportApi01, 3,\
           ExportApi02, 'ExportApi02',\
             ExportApi03, 7,\
           ExportApi04, 1,\
           ExportApi05, 'ExportApi05'
end data
    


bug 1:
stdcall CallTest,1,2,3 (fasm 1.67.29 bug)
bug 2:
Pe File ExportTable
NumberOfFunctions == NumberOfNames
Thank!
Post 20 Nov 2008, 15:05
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shoorick



Joined: 25 Feb 2005
Posts: 1605
Location: Ukraine
shoorick
CallTest% = 5
- what is this?
+++++++++++++++++++
set it:
CallTest% = 3
- helps
Post 20 Nov 2008, 15:16
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17252
Location: In your JS exploiting you and your system
revolution
These would appear to affect only the macros in the Windows download.

What is bug 1? You are calling CallTest with 3 parameters but you have defined it as needing 5 parameters? Also you don't properly restore the stack in the callTest function.
Post 20 Nov 2008, 15:23
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Tomasz Grysztar
Assembly Artist


Joined: 16 Jun 2003
Posts: 7715
Location: Kraków, Poland
Tomasz Grysztar
As for 2, is this code trying to define ordinal values for some of the exports? The "export" macro was not designed for such purpose, those numbers are treated just as single-codepoint names.
Post 20 Nov 2008, 15:27
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skykrnl



Joined: 17 Nov 2008
Posts: 21
skykrnl
revolution wrote:
These would appear to affect only the macros in the Windows download.

What is bug 1? You are calling CallTest with 3 parameters but you have defined it as needing 5 parameters? Also you don't properly restore the stack in the callTest function.


include 'Win32AXP.inc'

invoke CreateFile,0 (fasm 1.67.29)
Post 20 Nov 2008, 16:43
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17252
Location: In your JS exploiting you and your system
revolution
skykrnl wrote:
include 'Win32AXP.inc'

invoke CreateFile,0 (fasm 1.67.29)
Are you saying this is a bug? CreateFile needs seven parameters to do it's thing, you gave only one.

If you don't want the macros to check for the parameter count then don't put the P, just use win32ax.inc.
Post 20 Nov 2008, 17:05
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
LocoDelAssembly
Perhaps he means that fasm crash when it tries to display "Error: invalid count of parameters for CallTest."? It is quite possible because silent updates are too silent to be noticed Smile

PS: I've just checked his code with the bugged display_directive and yes it crash so probably he meant this bug: http://board.flatassembler.net/topic.php?t=9434
Post 20 Nov 2008, 18:04
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