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dharmang1910
Expert Cheater
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Joined: 09 May 2010
Posts: 102
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 Posted: Tue Nov 01, 2022 2:38 am Post subject: ccode crashing but luacode works |
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I have made two script to fetch address of hunger rate, first in luacode but it works but game lag a lot and become unplayable. So I have decided to make it in ccode but it crashes instantly on activation. Below are my findings.
My luacode script:
| Code: |
{$luacode xBase=ebp}
if readPointer(xBase+0x10) > 0 then
if readString(readPointer(xBase+0x10)+0x10) == 'hungerrate' then
registerSymbol('hungerr',xBase)
end
end
{$asm}
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My ccode script:
| Code: |
{$ccode xBase=ebp}
extern long hngrrt;
if (*(unsigned long *)(xBase+0x10) > 0)
{
char str =(char)(*(unsigned long *)(xBase+0x10)+0x10);
if (strcmp(str,"hungerrate"))
{
hngrrt=xBase;
}
}
{$asm}
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LeFiXER
Grandmaster Cheater Supreme
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Joined: 02 Sep 2011
Posts: 1069
Location: 0x90
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| Posted: Tue Nov 01, 2022 4:35 am Post subject: |
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Perhaps it's to do with the variable assignment. Maybe something like this? I didn't test it.
| Code: |
{$ccode xBase=ebp}
extern long hngrrt;
if (*(unsigned long *)(xBase+0x10) > 0)
{
char str[] =(char)(*(unsigned long *)(xBase+0x10)+0x10);
char res[] = "hungerrate"
if (strcmp(str,res))
{
hngrrt=xBase;
}
}
{$asm}
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dharmang1910
Expert Cheater
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Joined: 09 May 2010
Posts: 102
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| Posted: Tue Nov 01, 2022 6:15 am Post subject: |
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| LeFiXER wrote: | Perhaps it's to do with the variable assignment. Maybe something like this? I didn't test it.
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Thank you for reply I have tried it at first it shows syntax error but I have managed to fix it with this.
| Code: | | char str[] ={(char)(*(unsigned long *)(xBase+0x10)+0x10)} |
This time it works a bit long but it crashes too and also does not fetch hunger rate. May be there is a little mistake occurs.
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Dark Byte
Site Admin
 Reputation: 471
Joined: 09 May 2003
Posts: 25813
Location: The netherlands
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| Posted: Tue Nov 01, 2022 6:42 am Post subject: |
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try something like this:
| Code: |
push eax
{$try}
mov eax,[ebp+10] //if this fails, the except will catch it
add eax,10
cmp [eax],0 //if eax is an invalid address, except will catch it
{$ccode xBase=ebp str=eax}
extern long hngrrt;
if (strcmp(str,"hungerrate")==0)
hngrrt=xBase;
{$asm}
{$except}
invalid:
//skip the ccode block on error
pop eax
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dharmang1910
Expert Cheater
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Joined: 09 May 2010
Posts: 102
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| Posted: Thu Nov 03, 2022 3:37 am Post subject: |
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| Dark Byte wrote: | try something like this:
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Thank you very much for reply.
I have tried it and now game is not crashing but it does not fetch address also.
I have tried another slower opcode and injecting luacode works and game is hanging less but still ccode can not fetch address. I think I am doing some mistake in defining [[xBase+0x10]+0x10] location.
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Dark Byte
Site Admin
Reputation: 471
Joined: 09 May 2003
Posts: 25813
Location: The netherlands
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| Posted: Thu Nov 03, 2022 5:39 am Post subject: |
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perhaps the ccode is never executed at all
Try adding counters
And yes, likely the address is wrong
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dharmang1910
Expert Cheater
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Joined: 09 May 2010
Posts: 102
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| Posted: Wed Nov 09, 2022 6:58 am Post subject: |
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Here this works
| Code: | mov ecx,[ebp+10]
test ecx,ecx
je code
{$ccode xBase=ecx iBase=ebp}
extern long op1;
char *str = (char *)(xBase+0x10);
char *str2 = "currenthealth";
if (strcmp(str,str2)==0)
{
op1 = iBase;
}
{$asm}
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