51 lines
1.8 KiB
C
51 lines
1.8 KiB
C
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////////////////////////////////////////////////////////////////////////////////////
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//
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// File: shim.h
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//
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// History: May-99 clupu Created.
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// Aug-99 v-johnwh Various bug fixes.
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// 23-Nov-99 markder Support for multiple shim DLLs, chaining
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// of hooks. General clean-up.
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// 11-Feb-00 markder Reverted to W2K shipped shim structures.
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//
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// Desc: Contains all structure and function definitions for the shim mechanism.
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//
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////////////////////////////////////////////////////////////////////////////////////
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#ifndef __SHIM_H__
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#define __SHIM_H__
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struct tagHOOKAPI;
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typedef struct tagHOOKAPIEX {
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DWORD dwShimID;
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struct tagHOOKAPI *pTopOfChain;
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struct tagHOOKAPI *pNext;
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} HOOKAPIEX, *PHOOKAPIEX;
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typedef struct tagHOOKAPI {
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char* pszModule; // the name of the module
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char* pszFunctionName; // the name of the API in the module
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PVOID pfnNew; // pointer to the new stub API
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PVOID pfnOld; // pointer to the old API
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DWORD dwFlags; // used internally - important info about status
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union {
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struct tagHOOKAPI *pNextHook; // used internally - (obsolete -- old mechanism)
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PHOOKAPIEX pHookEx; // used internally - pointer to an internal extended info struct
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};
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} HOOKAPI, *PHOOKAPI;
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/*
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* If the hook DLL ever patches LoadLibraryA/W it must call PatchNewModules
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* so that the shim knows to patch any new loaded DLLs
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*/
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typedef VOID (*PFNPATCHNEWMODULES)(VOID);
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typedef PHOOKAPI (*PFNGETHOOKAPIS)(LPSTR pszCmdLine,
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PFNPATCHNEWMODULES pfnPatchNewModules,
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DWORD* pdwHooksCount);
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#define SHIM_COMMAND_LINE_MAX_BUFFER 1024
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#endif
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