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Index > Windows > edit control, user input & spaces

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dacid



Joined: 31 Aug 2008
Posts: 57
dacid
i have an edit control where the user enter values with spaces:

11 25 0E 54 FF ...

I get the input with GetDlgItemText (data is in a buffeR) but how i can remove the spaces?

11250E54FF ...
Post 19 Sep 2008, 10:01
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shoorick



Joined: 25 Feb 2005
Posts: 1605
Location: Ukraine
shoorick
process string with your procedure
Post 19 Sep 2008, 10:09
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17279
Location: In your JS exploiting you and your system
revolution
Yes, indeed, there are no API functions that can do it for you, you will need to have your write your own procedure to scan the buffer and ignore/remove the spaces.
Post 19 Sep 2008, 10:41
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dacid



Joined: 31 Aug 2008
Posts: 57
dacid
ok Smile

i have another problem now, how i can validate user input to be betwen 0-9 & A-F ?

Some basic source code appreciated
Post 19 Sep 2008, 16:22
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
LocoDelAssembly
Code:
proc isValidChar char
  mov     dl, byte [char]
  movzx   eax, dl ; To clear upper 24 bits of EAX so at exit it will be either 0 or 1

  sub     dl, '0'
  sub     al, 'A'

  cmp     dl, 9
  setbe   dl

  cmp     al, 5
  setbe   al

  or      al, dl
  ret
endp    
Post 19 Sep 2008, 17:23
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dacid



Joined: 31 Aug 2008
Posts: 57
dacid
thx
Post 19 Sep 2008, 18:13
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bitRAKE



Joined: 21 Jul 2003
Posts: 2915
Location: [RSP+8*5]
bitRAKE
Code:
isValidChar:
    label .char byte at esp+4

    movzx eax,[.char]
    bt [_0123456789ABCDEF],eax
    setc al
    retn 4

    align 32 ; only load a single cacheline
_0123456789ABCDEF dw \
  0000000000000000b,\
  0000000000000000b,\
  0000000000000000b,\
  0000001111111111b,\
  0000000001111110b,\
  0000000000000000b,\
  0000000000000000b,\
  0000000000000000b,\
  0000000000000000b,\
  0000000000000000b,\
  0000000000000000b,\
  0000000000000000b,\
  0000000000000000b,\
  0000000000000000b,\
  0000000000000000b,\
  0000000000000000b    

_________________
¯\(°_o)/¯ unlicense.org
Post 20 Sep 2008, 01:01
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