[Solved] Finding Signatures For Hooker Class

claudiuhks · **Author**

I'm wondering why the first signature works and the second one doesn't.

PHP Code:


			
typedef void ( * SV_DropClient_Type ) ( client_t *, int, char *, ... );

typedef int ( * KickBack_Type ) ( int, float, float, float, float, float, float, int );



/* ... */



SV_DropClient_Type SV_DropClient_Address;

KickBack_Type KickBack_Address;



/* ... */



SV_DropClient_Address = g_Hooker.MemorySearch < SV_DropClient_Type > ( "0x55,0x8B,*,0x81,*,*,*,*,*,0x8B,*,*,0x53,0x56,0x8D,*,*,0x57,0x50,0x51", ( void * ) gpGlobals, 0 );



printf( "SV_DropClient = %s\n", g_Hooker.CreateHook( ( void * ) SV_DropClient_Address, ( void * ) SV_DropClient, 1 ) ? "Hooked" : "Unhooked" );



/* ... */



KickBack_Address = g_Hooker.MemorySearch < KickBack_Type > ( "0x83,?,?,?,?,?,?,?,0xD9,?,?,?,0xD9,?,?,?,0xD9,?,?,?,0x8B", ( void * ) gpGlobals, 0 );



printf( "KickBack = %s\n", g_Hooker.CreateHook( ( void * ) KickBack_Address, ( void * ) KickBack, 1 ) ? "Hooked" : "Unhooked" );

Console output:

Code:

SV_DropClient = Hooked
KickBack = Unhooked

I tried with question marks and asterisks too.

**Arkshine** · 04-13-2013 , 07:12 Re: [Awaiting Answer] Finding Signatures For Hooker Class

If you're talking about CBasePlayerWeapon::KickBack(), it's a function from the game, not engine and signature is wrong.

Code:

"0x51,0x56,0x8B,*,0x8B,*,*,*,*,*,0x83,*,*,0x89"

claudiuhks · *Last edited by claudiuhks; 04-13-2013 at 07:16.*

Thank you for showing the good signature sentence.
What about engine/game differences, is there any linkage with ( void * ) gpGlobals parameter?

**Arkshine** · *Last edited by Arkshine; 04-13-2013 at 07:21.*

gpGlobals will point inside engine library.

To point inside game library, you can use for example MDLL_Spawn.

claudiuhks · *Last edited by claudiuhks; 04-13-2013 at 07:30.*

Quote:

Originally Posted by Arkshine

gpGlobals will point inside engine library.

To point inside game library, you can use for example MDLL_Spawn.

Didn't know that.
Thanks for your answer.

joropito · 04-13-2013 , 14:22 Re: [Solved] Finding Signatures For Hooker Class

chooker rocks