Help/Support how return by (void) in string

Ianouar3G · February 16, 2015

hi gays how return by (void)

; Quest::mpNumber::setmpNumber(void)
__ZN5Quest8mpNumber11setmpNumberEv

Is this correct way

int (*old__ZN5Quest8mpNumber11setmpNumberEv)();

int $__ZN5Quest8mpNumber11setmpNumberEv()
{
return 99999;
}

%ctor {

MSHookFunction(((int*)MSFindSymbol(NULL, "__ZN5Quest8mpNumber11setmpNumberEv")),(int*)$__ZN5Quest8mpNumber11setmpNumberEv,(void**)&old__ZN5Quest8mpNumber11setmpNumberEv);
}

KingRalph · February 17, 2015

This is how I would call a void argument in ms hook. Someone with more experience can correct me if I'm wrong

int $__ZN5Quest8mpNumber11setmpNumberEv()
{
   %orig(99999);
}

Always remember that void functions don't "return" anything. You have to call the original argument with %orig

Ianouar3G · February 17, 2015

Thk but i get error

Updated February 17, 2015 by Ianouar3G

February 17, 2015

No just treat the void as what it would be if it was not a void. That symbol would be an int, so just put

int $__ZN5Quest8mpNumber11setmpNumberEv{
return 9999;
}

Actually you are correct, I didn't read your first post fully yeah you're good to go :thumbsup:

Updated February 17, 2015 by Guest

Ianouar3G · February 17, 2015

On 2/17/2015 at 2:55 AM, shmoo said:
No just treat the void as what it would be if it was not a void. That symbol would be an int, so just put
int $__ZN5Quest8mpNumber11setmpNumberEv{
return 9999;
}
Actually you are correct, I didn't read your first post fully yeah you're good to go :thumbsup:

int (*old__ZN5Quest8mpNumber11setmpNumberEv)();

int $__ZN5Quest8mpNumber11setmpNumberEv /-------- if not use "()" stile ger errors

{

return 99999;

}

%ctor {

MSHookFunction(((int*)MSFindSymbol(NULL, "__ZN5Quest8mpNumber11setmpNumberEv")),(int*)$__ZN5Quest8mpNumber11setmpNumberEv,(void**)&old__ZN5Quest8mpNumber11setmpNumberEv);

}

get errors

February 17, 2015

try this

int (*old__ZN5Quest8mpNumber11setmpNumberEv)();

int $__ZN5Quest8mpNumber11setmpNumberEv()
{   
return 99999;
}

%ctor{    
MSHookFunction(((int*)MSFindSymbol(NULL, "__ZN5Quest8mpNumber11setmpNumberEv")),(int*)$__ZN5Quest8mpNumber11setmpNumberEv,(int**)&old__ZN5Quest8mpNumber11setmpNumberEv); 
}