diff -r c7b4237fff50 -r 03a67e41afbc core/MemoryUtils.cpp
--- a/core/MemoryUtils.cpp Fri Mar 28 06:21:34 2008 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,220 +0,0 @@
-/**
- * vim: set ts=4 :
- * =============================================================================
- * SourceMod
- * Copyright (C) 2004-2007 AlliedModders LLC. All rights reserved.
- * =============================================================================
- *
- * This program is free software; you can redistribute it and/or modify it under
- * the terms of the GNU General Public License, version 3.0, as published by the
- * Free Software Foundation.
- *
- * This program 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
- * this program. If not, see .
- *
- * As a special exception, AlliedModders LLC gives you permission to link the
- * code of this program (as well as its derivative works) to "Half-Life 2," the
- * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
- * by the Valve Corporation. You must obey the GNU General Public License in
- * all respects for all other code used. Additionally, AlliedModders LLC grants
- * this exception to all derivative works. AlliedModders LLC defines further
- * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
- * or .
- *
- * Version: $Id$
- */
-
-#include "MemoryUtils.h"
-#include "ShareSys.h"
-#ifdef PLATFORM_LINUX
-#include
-#include
-#endif
-
-MemoryUtils g_MemUtils;
-
-#if 0
-MemoryUtils::MemoryUtils()
-{
-#ifdef PLATFORM_WINDOWS
-
- SYSTEM_INFO info;
- GetSystemInfo(&info);
-
- m_PageSize = info.dwPageSize;
-
-#elif defined PLATFORM_POSIX
-
- m_PageSize = sysconf(_SC_PAGE_SIZE);
-
-#endif
-}
-#endif
-
-void MemoryUtils::OnSourceModAllInitialized()
-{
- g_ShareSys.AddInterface(NULL, this);
-}
-
-void *MemoryUtils::FindPattern(const void *libPtr, const char *pattern, size_t len)
-{
- DynLibInfo lib;
- bool found;
- char *ptr, *end;
-
- memset(&lib, 0, sizeof(DynLibInfo));
-
- if (!GetLibraryInfo(libPtr, lib))
- {
- return NULL;
- }
-
- ptr = reinterpret_cast(lib.baseAddress);
- end = ptr + lib.memorySize;
-
- while (ptr < end)
- {
- found = true;
- for (register size_t i = 0; i < len; i++)
- {
- if (pattern[i] != '\x2A' && pattern[i] != ptr[i])
- {
- found = false;
- break;
- }
- }
-
- if (found)
- return ptr;
-
- ptr++;
- }
-
- return NULL;
-}
-
-bool MemoryUtils::GetLibraryInfo(const void *libPtr, DynLibInfo &lib)
-{
- unsigned long baseAddr;
-
- if (libPtr == NULL)
- {
- return false;
- }
-
-#ifdef PLATFORM_WINDOWS
-
- MEMORY_BASIC_INFORMATION info;
- IMAGE_DOS_HEADER *dos;
- IMAGE_NT_HEADERS *pe;
- IMAGE_FILE_HEADER *file;
- IMAGE_OPTIONAL_HEADER *opt;
-
- if (!VirtualQuery(libPtr, &info, sizeof(MEMORY_BASIC_INFORMATION)))
- {
- return false;
- }
-
- baseAddr = reinterpret_cast(info.AllocationBase);
-
- /* All this is for our insane sanity checks :o */
- dos = reinterpret_cast(baseAddr);
- pe = reinterpret_cast(baseAddr + dos->e_lfanew);
- file = &pe->FileHeader;
- opt = &pe->OptionalHeader;
-
- /* Check PE magic and signature */
- if (dos->e_magic != IMAGE_DOS_SIGNATURE || pe->Signature != IMAGE_NT_SIGNATURE || opt->Magic != IMAGE_NT_OPTIONAL_HDR32_MAGIC)
- {
- return false;
- }
-
- /* Check architecture, which is 32-bit/x86 right now
- * Should change this for 64-bit if Valve gets their act together
- */
- if (file->Machine != IMAGE_FILE_MACHINE_I386)
- {
- return false;
- }
-
- /* For our purposes, this must be a dynamic library */
- if ((file->Characteristics & IMAGE_FILE_DLL) == 0)
- {
- return false;
- }
-
- /* Finally, we can do this */
- lib.memorySize = opt->SizeOfImage;
-
-#elif defined PLATFORM_LINUX
-
- Dl_info info;
- Elf32_Ehdr *file;
- Elf32_Phdr *phdr;
- uint16_t phdrCount;
-
- if (!dladdr(libPtr, &info))
- {
- return false;
- }
-
- if (!info.dli_fbase || !info.dli_fname)
- {
- return false;
- }
-
- /* This is for our insane sanity checks :o */
- baseAddr = reinterpret_cast(info.dli_fbase);
- file = reinterpret_cast(baseAddr);
-
- /* Check ELF magic */
- if (memcmp(ELFMAG, file->e_ident, SELFMAG) != 0)
- {
- return false;
- }
-
- /* Check ELF version */
- if (file->e_ident[EI_VERSION] != EV_CURRENT)
- {
- return false;
- }
-
- /* Check ELF architecture, which is 32-bit/x86 right now
- * Should change this for 64-bit if Valve gets their act together
- */
- if (file->e_ident[EI_CLASS] != ELFCLASS32 || file->e_machine != EM_386 || file->e_ident[EI_DATA] != ELFDATA2LSB)
- {
- return false;
- }
-
- /* For our purposes, this must be a dynamic library/shared object */
- if (file->e_type != ET_DYN)
- {
- return false;
- }
-
- phdrCount = file->e_phnum;
- phdr = reinterpret_cast(baseAddr + file->e_phoff);
-
- /* Add up the memory sizes of segments marked as PT_LOAD as those are the only ones that should be in memory */
- for (uint16_t i = 0; i < phdrCount; i++)
- {
- Elf32_Phdr &hdr = phdr[i];
-
- if (hdr.p_type == PT_LOAD)
- {
- lib.memorySize += hdr.p_memsz;
- }
- }
-
-#endif
-
- lib.baseAddress = reinterpret_cast(baseAddr);
-
- return true;
-}