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Files
KernelEx/apilibs/kexbases/Kernel32/GetProcessId.c
2018-11-03 16:22:27 +03:00

47 lines
1.5 KiB
C
Executable File

/*
* KernelEx
* Copyright (C) 2010, Tihiy
*
* This file is part of KernelEx source code.
*
* KernelEx is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation; version 2 of the License.
*
* KernelEx is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <windows.h>
#include "common.h"
/* MAKE_EXPORT GetProcessId_new=GetProcessId */
DWORD WINAPI GetProcessId_new(
HANDLE hProcess
)
{
typedef DWORD (WINAPI *MPH) (HANDLE hProcess);
static MPH MapProcessHandle = 0;
if (!MapProcessHandle)
{
DWORD *faddr;
DWORD addr;
faddr = (DWORD *) ( (DWORD)SetFilePointer + 0x1D ); //there is jmp _SetFilePointer
addr = (DWORD) faddr + *faddr + 4 - 0x16; //0x16 bytes before _SetFilePointer there is MapProcessHandle, just what we need
faddr = (DWORD *) addr;
if (*faddr != 0x206A006A)
fatal_error("GetProcessId: ASSERTION FAILED"); //push 0; push 0x20
MapProcessHandle = (MPH) addr;
}
return MapProcessHandle(hProcess);
}