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Index > Windows > [solved] more bother with locals

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DergMoney



Joined: 29 Apr 2015
Posts: 34
DergMoney
Dang, why is something that should be so easy, not?

I have a global string buffer 'fileName'. When I enter a thread I want to copy the string from 'fileName' to a local buffer '.tmp'. To begin all I want to do is get the address of .tmp

I can't figure how to do it with locals, although I do have a workaround. Just wondered where I'm going wrong. (I am using include "%fasminc%\win32ax.inc" now).


This gives 'error: invalid value'

Code:
proc threadProcessFile
    locals
        .tmp db MAX_PATH dup ?
    endl

        mov     edi, .tmp 
    .finish:
        ret
endp
    


This gives 'error: extra characters on line'

Code:
proc threadProcessFile
    locals
        .tmp db MAX_PATH dup ?
    endl

        mov     edi, addr .tmp

    .finish:
        ret
endp
    


This works but doesn't use locals...

Code:
proc threadProcessFile
        mov     edi, .tmp
    .finish:
        ret

    section '.data' data readable writeable
        .tmp    db MAX_PATH dup ?

    section '.code' code readable executable
        mov     eax, eax
endp
    


Thanks for any help you can give.
Post 07 Jun 2015, 15:13
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17450
Location: In your JS exploiting you and your system
revolution
You need to use LEA.
Code:
lea edi,[.tmp]    
Post 07 Jun 2015, 21:52
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DergMoney



Joined: 29 Apr 2015
Posts: 34
DergMoney
Thanks revolution Smile

Had tried something with lea but it loaded edi with the dword at .tmp Question

Working fine now, thanks again
Post 07 Jun 2015, 22:15
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