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Title: beginner and strings
Post by: yaki on May 16, 2006, 05:24:18 PM

hi all
I am a beginner...and I think that works with strings is important.
I work with a sniffer and I have an output like 1DA0206548....and I would like to reformat this output to have %1D%A0%20%65%48

any help will be appreciate

Thanks in advance

yaki

Title: Re: beginner and strings
Post by: hutch-- on May 17, 2006, 03:10:16 AM

yaki,

I moved the topic to the Campus so you had a better chance of a reply. Just make sure that the question you are asking is not cracking or reverse engineering related as we cannot allow that under the forum rules.

Title: Re: beginner and strings
Post by: Ossa on May 17, 2006, 07:53:56 AM

Hi,

try this

Code Select

ConvertString PROC pszOut:DWORD, pszIn:DWORD

	push edi
	push esi

	mov edi, pszOut
	mov esi, pszIn

@@:

	mov ax, [esi]
	or  al, al
	jz  @F
	or  ah, ah		; These lines aren't needed if the input
	jz  @F			; string is certain to be even in length
	
	shl eax, 8
	mov al, '%'
	mov [edi], eax

	add edi, 3
	add esi, 2
	jmp @B

@@:

	mov [edi], byte ptr 0

	pop esi
	pop edi

	ret
ConvertString ENDP

It's not optimised or anything, but it works.

Hope that helps,
Ossa

Title: Re: beginner and strings
Post by: yaki on May 17, 2006, 06:35:18 PM

hi
it is not the cracking or hacking but a simple strings manipulation.
thanks Ossa

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General Forums => The Campus => Topic started by: yaki on May 16, 2006, 05:24:18 PM