diff options
Diffstat (limited to 'internal_rewrite/vmt.hpp')
| -rw-r--r-- | internal_rewrite/vmt.hpp | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/internal_rewrite/vmt.hpp b/internal_rewrite/vmt.hpp deleted file mode 100644 index 03409ce..0000000 --- a/internal_rewrite/vmt.hpp +++ /dev/null @@ -1,95 +0,0 @@ -#pragma once -#include <vector> -#include "util.hpp" - -// todo - dex; rewrite this, VirtualQuery (except for custom codeptr / readptr) and VirtualProtect shouldnt be used -// and we need to copy rtti over too or stuff will break later on - -// correct me if im wrong, but the vtable isnt replaced, instead the original is edited during hooking, rtti should be intact and accessable by game -// class could definetly do with a rewrite tho! - -// ^ you're corrct, but changing page rights and replacing ptrs direclty in rdata (or usually the heap, since thats where vmts go) is not a safe solution -// copying table + aligning it to compensate for rtti is safer -// vac loves scanning memory regions but it doesnt really do much outside of game servers (only loads some shit for checking DEP and stuff) - -// trash - -//llama is a fucking nigger -//true - -namespace hooks -{ - //we in 2017 still - - class c_vmt { - uintptr_t* m_table; - uintptr_t* m_original; - bool m_copied; - std::vector< uintptr_t > m_new; - public: - int count( ) { - int vfunc_count{ }; - - while ( m_original[ vfunc_count ] ) { - vfunc_count++; - }; - - return vfunc_count; - } - - c_vmt( void* table ) { - if ( !table ) { - return; - } - - this->m_table = reinterpret_cast< uintptr_t* >( table ); - this->m_original = *reinterpret_cast< uintptr_t** >( this->m_table ); - - for ( int i = -1; i < this->count( ); ++i ) { - this->m_new.push_back( this->m_original[ i ] ); - } - - m_copied = false; - } - - ~c_vmt( ) { } - - template< typename T = uintptr_t > T get_function( int index ) { - return( ( T )( this->m_new.at( index + 1 ) ) ); - } - - template< typename T = uintptr_t > T get_old_function( int index ) { - return( ( T )( this->m_original[ index ] ) ); - } - - void hook( int index, uintptr_t new_func ) { - if( !m_copied ) { - auto data = this->m_new.data( ); - *this->m_table = uintptr_t( &data[ 1 ] ); - - m_copied = true; - } - - this->m_new.at( index + 1 ) = new_func; - } - - void unhook( int index ) { - this->m_new.at( index + 1 ) = this->m_original[ index ]; - } - - void hook( int index, void* new_func ) { - if( !m_copied ) { - auto data = this->m_new.data( ); - *this->m_table = uintptr_t( &data[ 1 ] ); - - m_copied = true; - } - - hook( index, reinterpret_cast< uintptr_t >( new_func ) ); - } - - void restore( ) const { - *this->m_table = uintptr_t( m_original ); - } - }; -}
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