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MemoryModule
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/*
* Memory DLL loading code
* Version 0.0.4
*
* Copyright (c) 2004-2015 by Joachim Bauch / mail@joachim-bauch.de
* http://www.joachim-bauch.de
*
* The contents of this file are subject to the Mozilla Public License Version
* 2.0 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is MemoryModule.h
*
* The Initial Developer of the Original Code is Joachim Bauch.
*
* Portions created by Joachim Bauch are Copyright (C) 2004-2015
* Joachim Bauch. All Rights Reserved.
*
*/
#ifndef
__MEMORY_MODULE_HEADER
#define
__MEMORY_MODULE_HEADER
#include
<windows.h>
typedef
void
*
HMEMORYMODULE
;
typedef
void
*
HMEMORYRSRC
;
typedef
void
*
HCUSTOMMODULE
;
#ifdef
__cplusplus
extern
"C"
{
#endif
typedef
LPVOID
(
*
CustomAllocFunc
)(
LPVOID
,
SIZE_T
,
DWORD
,
DWORD
,
void
*
);
typedef
BOOL
(
*
CustomFreeFunc
)(
LPVOID
,
SIZE_T
,
DWORD
,
void
*
);
typedef
HCUSTOMMODULE
(
*
CustomLoadLibraryFunc
)(
LPCSTR
,
void
*
);
typedef
FARPROC
(
*
CustomGetProcAddressFunc
)(
HCUSTOMMODULE
,
LPCSTR
,
void
*
);
typedef
void
(
*
CustomFreeLibraryFunc
)(
HCUSTOMMODULE
,
void
*
);
/**
* Load EXE/DLL from memory location with the given size.
*
* All dependencies are resolved using default LoadLibrary/GetProcAddress
* calls through the Windows API.
*/
HMEMORYMODULE
MemoryLoadLibrary
(
const
void
*
,
size_t
);
/**
* Load EXE/DLL from memory location with the given size using custom dependency
* resolvers.
*
* Dependencies will be resolved using passed callback methods.
*/
HMEMORYMODULE
MemoryLoadLibraryEx
(
const
void
*
,
size_t
,
CustomAllocFunc
,
CustomFreeFunc
,
CustomLoadLibraryFunc
,
CustomGetProcAddressFunc
,
CustomFreeLibraryFunc
,
void
*
);
/**
* Get address of exported method. Supports loading both by name and by
* ordinal value.
*/
FARPROC
MemoryGetProcAddress
(
HMEMORYMODULE
,
LPCSTR
);
/**
* Free previously loaded EXE/DLL.
*/
void
MemoryFreeLibrary
(
HMEMORYMODULE
);
/**
* Execute entry point (EXE only). The entry point can only be executed
* if the EXE has been loaded to the correct base address or it could
* be relocated (i.e. relocation information have not been stripped by
* the linker).
*
* Important: calling this function will not return, i.e. once the loaded
* EXE finished running, the process will terminate.
*
* Returns a negative value if the entry point could not be executed.
*/
int
MemoryCallEntryPoint
(
HMEMORYMODULE
);
/**
* Find the location of a resource with the specified type and name.
*/
HMEMORYRSRC
MemoryFindResource
(
HMEMORYMODULE
,
LPCTSTR
,
LPCTSTR
);
/**
* Find the location of a resource with the specified type, name and language.
*/
HMEMORYRSRC
MemoryFindResourceEx
(
HMEMORYMODULE
,
LPCTSTR
,
LPCTSTR
,
WORD
);
/**
* Get the size of the resource in bytes.
*/
DWORD
MemorySizeofResource
(
HMEMORYMODULE
,
HMEMORYRSRC
);
/**
* Get a pointer to the contents of the resource.
*/
LPVOID
MemoryLoadResource
(
HMEMORYMODULE
,
HMEMORYRSRC
);
/**
* Load a string resource.
*/
int
MemoryLoadString
(
HMEMORYMODULE
,
UINT
,
LPTSTR
,
int
);
/**
* Load a string resource with a given language.
*/
int
MemoryLoadStringEx
(
HMEMORYMODULE
,
UINT
,
LPTSTR
,
int
,
WORD
);
/**
* Default implementation of CustomAllocFunc that calls VirtualAlloc
* internally to allocate memory for a library
*
* This is the default as used by MemoryLoadLibrary.
*/
LPVOID
MemoryDefaultAlloc
(
LPVOID
,
SIZE_T
,
DWORD
,
DWORD
,
void
*
);
/**
* Default implementation of CustomFreeFunc that calls VirtualFree
* internally to free the memory used by a library
*
* This is the default as used by MemoryLoadLibrary.
*/
BOOL
MemoryDefaultFree
(
LPVOID
,
SIZE_T
,
DWORD
,
void
*
);
/**
* Default implementation of CustomLoadLibraryFunc that calls LoadLibraryA
* internally to load an additional libary.
*
* This is the default as used by MemoryLoadLibrary.
*/
HCUSTOMMODULE
MemoryDefaultLoadLibrary
(
LPCSTR
,
void
*
);
/**
* Default implementation of CustomGetProcAddressFunc that calls GetProcAddress
* internally to get the address of an exported function.
*
* This is the default as used by MemoryLoadLibrary.
*/
FARPROC
MemoryDefaultGetProcAddress
(
HCUSTOMMODULE
,
LPCSTR
,
void
*
);
/**
* Default implementation of CustomFreeLibraryFunc that calls FreeLibrary
* internally to release an additional libary.
*
* This is the default as used by MemoryLoadLibrary.
*/
void
MemoryDefaultFreeLibrary
(
HCUSTOMMODULE
,
void
*
);
#ifdef
__cplusplus
}
#endif
#endif
// __MEMORY_MODULE_HEADER
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