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Remove useless code. Fix incorrect JMP being used and allocating 1 byte to many.

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This commit is contained in:
Ruben Gonzalez 2016-09-03 12:32:39 -04:00
parent 56a273b8c7
commit 0a4f9c8003
1 changed files with 3 additions and 6 deletions
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9
core/detourhook/detourhook.cpp
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@ -2,11 +2,8 @@
#include <metamod.h>
#include "asm\asm.h"
//#include "asmjit\asmjit.h"
using namespace DetourHook;
//using namespace asmjit;
//using namespace asmjit::x86;
int CDetourHookImpl::GetIfaceVersion()
{
@ -25,16 +22,16 @@ CDetourHook::CDetourHook(void *addr, void *callback)
SourceHook::SetMemAccess(this->pFunc, this->bytes, SH_MEM_READ | SH_MEM_WRITE | SH_MEM_EXEC);
memcpy(this->pOrginalBytes, this->pFunc, this->bytes);
this->pTrampoline = malloc(this->bytes + OP_JMP_SIZE + 1); //Allocate space
this->pTrampoline = malloc(this->bytes + OP_JMP_SIZE); //Allocate space
SourceHook::SetMemAccess(this->pTrampoline, bytes + OP_JMP_SIZE + 1, SH_MEM_READ | SH_MEM_WRITE | SH_MEM_EXEC);
SourceHook::SetMemAccess(this->pTrampoline, bytes + OP_JMP_SIZE, SH_MEM_READ | SH_MEM_WRITE | SH_MEM_EXEC);
//Copy our original bytes to our trampoline
//We use this to fix JMP's and whatever else is relative to the function.
copy_bytes((unsigned char *)this->pFunc, (unsigned char *)this->pTrampoline, this->bytes);
//JMP from trampoline +bytes to function + bytes
inject_abs_jmp((unsigned char*)this->pTrampoline + this->bytes, (unsigned char*)this->pFunc + this->bytes);
inject_jmp((unsigned char*)this->pTrampoline + this->bytes, (unsigned char*)this->pFunc + this->bytes);
}
CDetourHook::~CDetourHook()