848 lines
22 KiB
C
848 lines
22 KiB
C
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/*****************************************************************************
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*
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* Valid.c
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*
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* Copyright (c) 1996 Microsoft Corporation. All Rights Reserved.
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*
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* Abstract:
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*
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* Validate services. On a validation error that would not have
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* been caught in retail, we throw an exception.
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*
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* Contents:
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*
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* fFullValidPhwnd
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* fFullValidPpdw
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* fFullValidPpfn
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* fFullValidReadPx
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* fFullValidWritePx
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*
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*****************************************************************************/
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#include "dinputpr.h"
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/*****************************************************************************
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*
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* @doc INTERNAL
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*
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* @func HRESULT | hresFullValidHwnd |
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*
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* Validate a window handle completely.
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*
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* @parm HWND | hwnd |
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*
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* Window handle to validate.
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*
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* @parm LPCSTR | s_szProc |
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*
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* Name of calling procedure.
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*
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* @parm int | iarg |
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*
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* Parameter index. (First parameter is 1.)
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*
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* @returns
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*
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* <c S_OK> if the parameter is valid.
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*
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* <c E_HANDLE> if the parameter is invalid.
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*
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*****************************************************************************/
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STDMETHODIMP
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hresFullValidHwnd_(HWND hwnd, LPCSTR s_szProc, int iarg)
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{
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HRESULT hres;
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if (IsWindow(hwnd)) {
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hres = S_OK;
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} else {
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RPF("ERROR %s: arg %d: not a window handle", s_szProc, iarg);
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hres = E_HANDLE;
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}
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return hres;
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}
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/*****************************************************************************
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*
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* @doc INTERNAL
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*
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* @func HRESULT | hresFullValidPvCb_ |
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*
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* Validate that a buffer is readable or writeable.
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*
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* @parm PV | pv |
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*
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* Buffer address.
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*
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* @parm UINT | cb |
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*
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* Size of buffer in bytes.
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*
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* @parm PFNBAD | pfnBad |
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*
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* Function that determines whether the buffer is bad.
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* Should be <f IsBadReadPtr> or <f IsBadWritePtr>.
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*
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* @parm LPCSTR | s_szProc |
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*
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* Name of calling procedure.
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*
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* @parm int | iarg |
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*
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* Parameter index. (First parameter is 1.)
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* High word indicates how many bytes should not be
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* scrambled.
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*
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* @returns
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*
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* <c S_OK> if the parameter is valid.
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*
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* <c E_POINTER> if the parameter is invalid.
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*
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*****************************************************************************/
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typedef BOOL (WINAPI *PFNBAD)(PCV pv, UINT_PTR cb);
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#ifndef XDEBUG
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#define hresFullValidPvCb_(pv, cb, pfnBad, z, i) \
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_hresFullValidPvCb_(pv, cb, pfnBad) \
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#endif
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STDMETHODIMP
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hresFullValidPvCb_(PCV pv, UINT cb, PFNBAD pfnBad, LPCSTR s_szProc, int iarg)
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{
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HRESULT hres;
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#if DIRECTINPUT_VERSION < 0x0400
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if (pfnBad(pv, cb)) {
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#else
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if (!pfnBad(pv, LOWORD(cb))) {
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#endif
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hres = S_OK;
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} else {
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RPF("ERROR %s: arg %d: invalid pointer", s_szProc, LOWORD(iarg));
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hres = E_POINTER;
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}
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return hres;
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}
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/*****************************************************************************
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*
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* @doc INTERNAL
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*
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* @func HRESULT | hresFullValidWritePvCb_ |
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*
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* Validate that a buffer is writeable. Also scrambles it
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* if special goo doesn't need to be done.
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*
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* @parm PV | pv |
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*
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* Buffer address.
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*
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* @parm UINT | cb |
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*
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* Size of buffer in bytes.
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*
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* @parm LPCSTR | s_szProc |
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*
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* Name of calling procedure.
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*
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* @parm int | iarg |
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*
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* Parameter index. (First parameter is 1.)
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*
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* @returns
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*
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* <c S_OK> if the parameter is valid.
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*
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* <c E_POINTER> if the parameter is invalid.
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*
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*****************************************************************************/
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STDMETHODIMP
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hresFullValidWritePvCb_(PV pv, UINT cb, LPCSTR s_szProc, int iarg)
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{
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HRESULT hres;
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hres = hresFullValidPvCb_(pv, cb, (PFNBAD)IsBadWritePtr, s_szProc, iarg);
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#ifdef XDEBUG
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if (SUCCEEDED(hres) && HIWORD(iarg) == 0) {
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ScrambleBuf(pv, cb);
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}
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#endif
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return hres;
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}
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/*****************************************************************************
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*
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* @doc INTERNAL
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*
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* @func HRESULT | hresFullValidReadPvCb_ |
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*
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* Validate that a buffer is readable.
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*
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* @parm PV | pv |
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*
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* Buffer address.
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*
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* @parm UINT | cb |
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*
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* Size of buffer in bytes.
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*
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* @parm LPCSTR | s_szProc |
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*
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* Name of calling procedure.
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*
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* @parm int | iarg |
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*
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* Parameter index. (First parameter is 1.)
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*
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* @returns
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*
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* <c S_OK> if the parameter is valid.
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*
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* <c E_POINTER> if the parameter is invalid.
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*
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*****************************************************************************/
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STDMETHODIMP
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hresFullValidReadPvCb_(PCV pv, UINT cb, LPCSTR s_szProc, int iarg)
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{
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return hresFullValidPvCb_(pv, cb, (PFNBAD)IsBadReadPtr, s_szProc, iarg);
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}
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/*****************************************************************************
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*
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* @doc INTERNAL
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*
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* @func HRESULT | hresFullValidPxCb_ |
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*
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* Validate that a sized structure is readable or writeable.
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*
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* @parm PCV | pv |
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*
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* Structure address. The first field of the structure must
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* be a <p dwSize>. If the structure is being validated for
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* writing, then all fields beyond the <p dwSize> are scrambled
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* in XDEBUG.
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*
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* @parm UINT | cbHiLo |
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*
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* Expected sizes of the structure. One valid size is in the
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* low word. An optional alternate valid size is in the high
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* word. (The alternate valid size is needed because some
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* structures changed size between DirectX 3 and DirectX 5.)
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*
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* @parm STRUCTPROC | pfnStruct |
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*
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* Function which validates that a structure is readable or writable.
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*
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* @parm LPCSTR | s_szProc |
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*
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* Name of calling procedure.
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*
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* @parm int | iarg |
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*
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* Parameter index. (First parameter is 1.)
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*
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* @returns
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*
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* <c S_OK> if the parameter is valid.
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*
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* <c E_POINTER> if the buffer is not readable or writeable.
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*
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* <c E_INVALIDARG> if the buffer size is incorrect.
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*
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*****************************************************************************/
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typedef STDMETHOD(STRUCTPROC)(PCV pv, UINT cb
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RD(comma LPCSTR s_szProc comma int iarg));
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#ifndef XDEBUG
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#define hresFullValidPxCb_(pv, cbHiLo, pfnStruct, z, i) \
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_hresFullValidPxCb_(pv, cbHiLo, pfnStruct) \
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#endif
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STDMETHODIMP
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hresFullValidPxCb_(PCV pv, UINT cbHiLo, STRUCTPROC pfnStruct,
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LPCSTR s_szProc, int iarg)
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{
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HRESULT hres;
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/*
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* Raymond frequently suffers a brain lapse and passes
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* a cbX(LPMUMBLE) instead of a cbX(MUMBLE).
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*/
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AssertF(LOWORD(cbHiLo) != cbX(DWORD));
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AssertF(HIWORD(cbHiLo) != cbX(DWORD));
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if (!IsBadReadPtr(pv, cbX(DWORD))) {
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DWORD cbIn = *(LPDWORD)pv;
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/*
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* The leading "cbIn &&" prevents the HIWORD(cbHiLo)==0 case from
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* accidentally allowing a size of zero to sneak past.
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*/
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if (cbIn && (cbIn == LOWORD(cbHiLo) || cbIn == HIWORD(cbHiLo))) {
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hres = pfnStruct(pv, cbIn RD(comma s_szProc comma iarg));
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if (SUCCEEDED(hres)) {
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if (HIWORD(iarg)) {
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ScrambleBuf(pvAddPvCb(pv, HIWORD(iarg)),
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cbIn - HIWORD(iarg));
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}
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}
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} else {
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RPF("ERROR %s: arg %d: invalid dwSize", s_szProc, LOWORD(iarg));
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hres = E_INVALIDARG;
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}
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} else {
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RPF("ERROR %s: arg %d: invalid pointer", s_szProc, LOWORD(iarg));
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hres = E_POINTER;
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}
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return hres;
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}
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|
|
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||
|
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/*****************************************************************************
|
||
|
|
*
|
||
|
|
* @doc INTERNAL
|
||
|
|
*
|
||
|
|
* @func HRESULT | hresFullValidWritePxCb_ |
|
||
|
|
*
|
||
|
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* Validate that a sized structure is writeable. The contents
|
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* of the structure are scrambled before returning.
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|
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*
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* @parm PV | pv |
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|
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*
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||
|
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* Structure address. The first field of the structure must
|
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|
|
* be a <p dwSize>.
|
||
|
|
*
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||
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|
* @parm UINT | cbHiLo |
|
||
|
|
*
|
||
|
|
* Expected sizes of the structure. One valid size is in the
|
||
|
|
* low word. An optional alternate valid size is in the high
|
||
|
|
* word. (The alternate valid size is needed because some
|
||
|
|
* structures changed size between DirectX 3 and DirectX 5.)
|
||
|
|
*
|
||
|
|
* @parm LPCSTR | s_szProc |
|
||
|
|
*
|
||
|
|
* Name of calling procedure.
|
||
|
|
*
|
||
|
|
* @parm int | iarg |
|
||
|
|
*
|
||
|
|
* Parameter index. (First parameter is 1.)
|
||
|
|
*
|
||
|
|
* @returns
|
||
|
|
*
|
||
|
|
* <c S_OK> if the parameter is valid.
|
||
|
|
*
|
||
|
|
* <c E_POINTER> if the buffer is not writeable.
|
||
|
|
*
|
||
|
|
* <c E_INVALIDARG> if the buffer size is incorrect.
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
hresFullValidWritePxCb_(PV pv, UINT cb, LPCSTR s_szProc, int iarg)
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
* We need to distinguish hresFullValidWritePvCb_ and
|
||
|
|
* _hresFullValidWritePvCb_ manually, because the preprocessor
|
||
|
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* gets confused.
|
||
|
|
*
|
||
|
|
* We also need to put a cbX(DWORD) into the high word of the iarg
|
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|
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* so that the size field won't get demolished.
|
||
|
|
*/
|
||
|
|
#ifdef XDEBUG
|
||
|
|
return hresFullValidPxCb_(pv, cb, (STRUCTPROC)hresFullValidWritePvCb_,
|
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|
|
s_szProc, MAKELONG(iarg, cbX(DWORD)));
|
||
|
|
#else
|
||
|
|
return hresFullValidPxCb_(pv, cb, (STRUCTPROC)_hresFullValidWritePvCb_,
|
||
|
|
s_szProc, iarg);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef XDEBUG
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
*
|
||
|
|
* @doc INTERNAL
|
||
|
|
*
|
||
|
|
* @func HRESULT | hresFullValidWriteNoScramblePxCb_ |
|
||
|
|
*
|
||
|
|
* Validate that a sized structure is writeable. The contents
|
||
|
|
* of the structure are not scrambled.
|
||
|
|
*
|
||
|
|
* @parm PV | pv |
|
||
|
|
*
|
||
|
|
* Structure address. The first field of the structure must
|
||
|
|
* be a <p dwSize>.
|
||
|
|
*
|
||
|
|
* @parm UINT | cbHiLo |
|
||
|
|
*
|
||
|
|
* Expected sizes of the structure. One valid size is in the
|
||
|
|
* low word. An optional alternate valid size is in the high
|
||
|
|
* word. (The alternate valid size is needed because some
|
||
|
|
* structures changed size between DirectX 3 and DirectX 5.)
|
||
|
|
*
|
||
|
|
* @parm LPCSTR | s_szProc |
|
||
|
|
*
|
||
|
|
* Name of calling procedure.
|
||
|
|
*
|
||
|
|
* @parm int | iarg |
|
||
|
|
*
|
||
|
|
* Parameter index. (First parameter is 1.)
|
||
|
|
*
|
||
|
|
* @returns
|
||
|
|
*
|
||
|
|
* <c S_OK> if the parameter is valid.
|
||
|
|
*
|
||
|
|
* <c E_POINTER> if the buffer is not writeable.
|
||
|
|
*
|
||
|
|
* <c E_INVALIDARG> if the buffer size is incorrect.
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
hresFullValidWriteNoScramblePxCb_(PV pv, UINT cb, LPCSTR s_szProc, int iarg)
|
||
|
|
{
|
||
|
|
return hresFullValidPxCb_(pv, cb, (STRUCTPROC)hresFullValidWritePvCb_,
|
||
|
|
s_szProc, MAKELONG(iarg, cb));
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
*
|
||
|
|
* @doc INTERNAL
|
||
|
|
*
|
||
|
|
* @func HRESULT | hresFullValidReadPxCb_ |
|
||
|
|
*
|
||
|
|
* Validate that a sized structure is readable.
|
||
|
|
*
|
||
|
|
* @parm PV | pv |
|
||
|
|
*
|
||
|
|
* Structure address. The first field of the structure must
|
||
|
|
* be a <p dwSize>.
|
||
|
|
*
|
||
|
|
* @parm UINT | cbHiLo |
|
||
|
|
*
|
||
|
|
* Expected sizes of the structure. One valid size is in the
|
||
|
|
* low word. An optional alternate valid size is in the high
|
||
|
|
* word. (The alternate valid size is needed because some
|
||
|
|
* structures changed size between DirectX 3 and DirectX 5.)
|
||
|
|
*
|
||
|
|
* @parm LPCSTR | s_szProc |
|
||
|
|
*
|
||
|
|
* Name of calling procedure.
|
||
|
|
*
|
||
|
|
* @parm int | iarg |
|
||
|
|
*
|
||
|
|
* Parameter index. (First parameter is 1.)
|
||
|
|
*
|
||
|
|
* @returns
|
||
|
|
*
|
||
|
|
* <c S_OK> if the parameter is valid.
|
||
|
|
*
|
||
|
|
* <c E_POINTER> if the buffer is not readable.
|
||
|
|
*
|
||
|
|
* <c E_INVALIDARG> if the buffer size is incorrect.
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
hresFullValidReadPxCb_(PCV pv, UINT cb, LPCSTR s_szProc, int iarg)
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
* We need to distinguish hresFullValidReadPvCb_ and
|
||
|
|
* _hresFullValidReadPvCb_ manually, because the preprocessor
|
||
|
|
* gets confused.
|
||
|
|
*/
|
||
|
|
#ifdef XDEBUG
|
||
|
|
return hresFullValidPxCb_(pv, cb, hresFullValidReadPvCb_, s_szProc, iarg);
|
||
|
|
#else
|
||
|
|
return hresFullValidPxCb_(pv, cb, _hresFullValidReadPvCb_, s_szProc, iarg);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
*
|
||
|
|
* @doc INTERNAL
|
||
|
|
*
|
||
|
|
* @func HRESULT | hresFullValidFl_ |
|
||
|
|
*
|
||
|
|
* Validate that no invalid flags are passed.
|
||
|
|
*
|
||
|
|
* @parm DWORD | fl |
|
||
|
|
*
|
||
|
|
* Flags passed by the caller.
|
||
|
|
*
|
||
|
|
* @parm DWORD | flV |
|
||
|
|
*
|
||
|
|
* Flags which are valid.
|
||
|
|
*
|
||
|
|
* @parm LPCSTR | s_szProc |
|
||
|
|
*
|
||
|
|
* Name of calling procedure.
|
||
|
|
*
|
||
|
|
* @parm int | iarg |
|
||
|
|
*
|
||
|
|
* Parameter index. (First parameter is 1.)
|
||
|
|
*
|
||
|
|
* @returns
|
||
|
|
*
|
||
|
|
* <c S_OK> if the parameter is valid.
|
||
|
|
*
|
||
|
|
* <c E_INVALIDARG> if the parameter is invalid.
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
hresFullValidFl_(DWORD fl, DWORD flV, LPCSTR s_szProc, int iarg)
|
||
|
|
{
|
||
|
|
HRESULT hres;
|
||
|
|
if ((fl & ~flV) == 0) {
|
||
|
|
hres = S_OK;
|
||
|
|
} else {
|
||
|
|
RPF("ERROR %s: arg %d: invalid flags", s_szProc, iarg);
|
||
|
|
hres = E_INVALIDARG;
|
||
|
|
}
|
||
|
|
return hres;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
*
|
||
|
|
* @doc INTERNAL
|
||
|
|
*
|
||
|
|
* @func HRESULT | hresFullValidPfn_ |
|
||
|
|
*
|
||
|
|
* Validate that the parameter is a valid code pointer.
|
||
|
|
*
|
||
|
|
* Actually, <f IsValidCodePtr> on Win32 is broken, but
|
||
|
|
* tough.
|
||
|
|
*
|
||
|
|
* @parm FARPROC | pfn |
|
||
|
|
*
|
||
|
|
* Procedure to "validate".
|
||
|
|
*
|
||
|
|
* @parm LPCSTR | s_szProc |
|
||
|
|
*
|
||
|
|
* Name of calling procedure.
|
||
|
|
*
|
||
|
|
* @parm int | iarg |
|
||
|
|
*
|
||
|
|
* Parameter index. (First parameter is 1.)
|
||
|
|
*
|
||
|
|
* @returns
|
||
|
|
*
|
||
|
|
* <c S_OK> if the parameter is valid.
|
||
|
|
*
|
||
|
|
* <c E_INVALIDARG> if the parameter is invalid.
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
hresFullValidPfn_(FARPROC pfn, LPCSTR s_szProc, int iarg)
|
||
|
|
{
|
||
|
|
HRESULT hres;
|
||
|
|
if (!IsBadCodePtr(pfn)) {
|
||
|
|
hres = S_OK;
|
||
|
|
} else {
|
||
|
|
RPF("ERROR %s: arg %d: invalid callback address", s_szProc, iarg);
|
||
|
|
hres = E_INVALIDARG;
|
||
|
|
}
|
||
|
|
return hres;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
*
|
||
|
|
* @doc INTERNAL
|
||
|
|
*
|
||
|
|
* @func HRESULT | hresFullValidPitf_ |
|
||
|
|
*
|
||
|
|
* Validate that the parameter is an interface pointer.
|
||
|
|
*
|
||
|
|
* We don't look at it very hard.
|
||
|
|
*
|
||
|
|
* @parm PUNK | punk |
|
||
|
|
*
|
||
|
|
* <i IUnknown> to "validate".
|
||
|
|
*
|
||
|
|
* @parm LPCSTR | s_szProc |
|
||
|
|
*
|
||
|
|
* Name of calling procedure.
|
||
|
|
*
|
||
|
|
* @parm int | iarg |
|
||
|
|
*
|
||
|
|
* Parameter index. (First parameter is 1.)
|
||
|
|
*
|
||
|
|
* @returns
|
||
|
|
*
|
||
|
|
* <c S_OK> if the parameter is valid.
|
||
|
|
*
|
||
|
|
* <c E_POINTER> if the pointer itself is bogus.
|
||
|
|
*
|
||
|
|
* <c E_INVALIDARG> if something inside the pointer is bogus.
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
hresFullValidPitf_(PUNK punk, LPCSTR s_szProc, int iarg)
|
||
|
|
{
|
||
|
|
HRESULT hres;
|
||
|
|
|
||
|
|
if (!IsBadReadPtr(punk, cbX(*punk))) {
|
||
|
|
IUnknownVtbl *pvtbl = punk->lpVtbl;
|
||
|
|
if (!IsBadReadPtr(pvtbl, cbX(*pvtbl))) {
|
||
|
|
if (!IsBadCodePtr((FARPROC)pvtbl->QueryInterface) &&
|
||
|
|
!IsBadCodePtr((FARPROC)pvtbl->AddRef) &&
|
||
|
|
!IsBadCodePtr((FARPROC)pvtbl->Release)) {
|
||
|
|
hres = S_OK;
|
||
|
|
} else {
|
||
|
|
RPF("ERROR %s: arg %d: invalid pointer", s_szProc, iarg);
|
||
|
|
hres = E_INVALIDARG;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
RPF("ERROR %s: arg %d: invalid pointer", s_szProc, iarg);
|
||
|
|
hres = E_INVALIDARG;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
RPF("ERROR %s: arg %d: invalid pointer", s_szProc, iarg);
|
||
|
|
hres = E_POINTER;
|
||
|
|
}
|
||
|
|
|
||
|
|
return hres;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
*
|
||
|
|
* @doc INTERNAL
|
||
|
|
*
|
||
|
|
* @func HRESULT | hresFullValidPcbOut_ |
|
||
|
|
*
|
||
|
|
* Validate that the parameter is a valid place to stick an
|
||
|
|
* output result. We also smas it to zero.
|
||
|
|
*
|
||
|
|
* @parm PV | pcb |
|
||
|
|
*
|
||
|
|
* Pointer to "validate".
|
||
|
|
*
|
||
|
|
* @parm UINT | cb |
|
||
|
|
*
|
||
|
|
* Size of data pcb points to.
|
||
|
|
*
|
||
|
|
* @parm LPCSTR | s_szProc |
|
||
|
|
*
|
||
|
|
* Name of calling procedure.
|
||
|
|
*
|
||
|
|
* @parm int | iarg |
|
||
|
|
*
|
||
|
|
* Parameter index. (First parameter is 1.)
|
||
|
|
*
|
||
|
|
* @returns
|
||
|
|
*
|
||
|
|
* <c S_OK> if the parameter is valid.
|
||
|
|
*
|
||
|
|
* <c E_POINTER> if the pointer itself is bogus.
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
hresFullValidPcbOut_(PV pcb, UINT cb, LPCSTR s_szProc, int iarg)
|
||
|
|
{
|
||
|
|
HRESULT hres;
|
||
|
|
if (!IsBadWritePtr(pcb, cb)) {
|
||
|
|
memset(pcb,0,cb);
|
||
|
|
hres = S_OK;
|
||
|
|
} else {
|
||
|
|
RPF("ERROR %s: arg %d: invalid pointer", s_szProc, iarg);
|
||
|
|
hres = E_POINTER;
|
||
|
|
}
|
||
|
|
return hres;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
*
|
||
|
|
* @doc INTERNAL
|
||
|
|
*
|
||
|
|
* @func HRESULT | hresFullValidReadStrA_ |
|
||
|
|
*
|
||
|
|
* Validate that the parameter is a valid readable
|
||
|
|
* ANSI string of maximum length <p cch>.
|
||
|
|
*
|
||
|
|
* Note that we cannot use <f IsBadStringPtr> because
|
||
|
|
* <f IsBadStringPtr> handles the "string too long"
|
||
|
|
* case incorrectly. Instead, we use <f lstrlenA>.
|
||
|
|
*
|
||
|
|
* @parm LPCSTR | psz |
|
||
|
|
*
|
||
|
|
* String to "validate".
|
||
|
|
*
|
||
|
|
* @parm UINT | cch |
|
||
|
|
*
|
||
|
|
* Maximum string length, including null terminator.
|
||
|
|
*
|
||
|
|
* @parm LPCSTR | s_szProc |
|
||
|
|
*
|
||
|
|
* Name of calling procedure.
|
||
|
|
*
|
||
|
|
* @parm int | iarg |
|
||
|
|
*
|
||
|
|
* Parameter index. (First parameter is 1.)
|
||
|
|
*
|
||
|
|
* @returns
|
||
|
|
*
|
||
|
|
* <c S_OK> if the parameter is valid.
|
||
|
|
*
|
||
|
|
* <c E_INVALIDARG> if the pointer itself is bogus.
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
hresFullValidReadStrA_(LPCSTR psz, UINT cch, LPCSTR s_szProc, int iarg)
|
||
|
|
{
|
||
|
|
HRESULT hres;
|
||
|
|
UINT cchT;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* lstrlenA returns 0 if the parameter is invalid.
|
||
|
|
* It also returns 0 if the string is null.
|
||
|
|
*/
|
||
|
|
cchT = (UINT)lstrlenA(psz);
|
||
|
|
|
||
|
|
if (cchT == 0) {
|
||
|
|
/*
|
||
|
|
* The ambiguous case. See if it's really a null string.
|
||
|
|
*/
|
||
|
|
if (IsBadReadPtr(psz, cbCch(1)) || psz[0]) {
|
||
|
|
RPF("ERROR %s: arg %d: invalid ANSI string", s_szProc, iarg);
|
||
|
|
hres = E_INVALIDARG;
|
||
|
|
} else {
|
||
|
|
hres = S_OK;
|
||
|
|
}
|
||
|
|
} else if (cchT < cch) {
|
||
|
|
hres = S_OK;
|
||
|
|
} else {
|
||
|
|
RPF("ERROR %s: arg %d: invalid ANSI string", s_szProc, iarg);
|
||
|
|
hres = E_INVALIDARG;
|
||
|
|
}
|
||
|
|
return hres;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
*
|
||
|
|
* @doc INTERNAL
|
||
|
|
*
|
||
|
|
* @func HRESULT | hresFullValidReadStrW_ |
|
||
|
|
*
|
||
|
|
* Validate that the parameter is a valid readable
|
||
|
|
* UNICODE string of maximum length <p cwch>.
|
||
|
|
*
|
||
|
|
* Note that we cannot use <f IsBadStringPtr> because
|
||
|
|
* <f IsBadStringPtr> handles the "string too long"
|
||
|
|
* case incorrectly. Instead, we use <f lstrlenW>.
|
||
|
|
*
|
||
|
|
* @parm LPCWSTR | pwsz |
|
||
|
|
*
|
||
|
|
* String to "validate".
|
||
|
|
*
|
||
|
|
* @parm UINT | cwch |
|
||
|
|
*
|
||
|
|
* Maximum string length, including null terminator.
|
||
|
|
*
|
||
|
|
* @parm LPCSTR | s_szProc |
|
||
|
|
*
|
||
|
|
* Name of calling procedure.
|
||
|
|
*
|
||
|
|
* @parm int | iarg |
|
||
|
|
*
|
||
|
|
* Parameter index. (First parameter is 1.)
|
||
|
|
*
|
||
|
|
* @returns
|
||
|
|
*
|
||
|
|
* <c S_OK> if the parameter is valid.
|
||
|
|
*
|
||
|
|
* <c E_INVALIDARG> if the pointer itself is bogus.
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
hresFullValidReadStrW_(LPCWSTR pwsz, UINT cwch, LPCSTR s_szProc, int iarg)
|
||
|
|
{
|
||
|
|
HRESULT hres;
|
||
|
|
UINT cwchT;
|
||
|
|
|
||
|
|
hres = E_INVALIDARG;
|
||
|
|
/*
|
||
|
|
* lstrlenW returns 0 if the parameter is invalid.
|
||
|
|
* It also returns 0 if the string is null.
|
||
|
|
*/
|
||
|
|
cwchT = (UINT)lstrlenW(pwsz);
|
||
|
|
|
||
|
|
if (cwchT == 0) {
|
||
|
|
/*
|
||
|
|
* The ambiguous case. See if it's really a null string.
|
||
|
|
*/
|
||
|
|
if (IsBadReadPtr(pwsz, cbCwch(1)) || pwsz[0]) {
|
||
|
|
RPF("ERROR %s: arg %d: invalid UNICODE string", s_szProc, iarg);
|
||
|
|
hres = E_INVALIDARG;
|
||
|
|
} else {
|
||
|
|
hres = S_OK;
|
||
|
|
}
|
||
|
|
} else if (cwchT < cwch) {
|
||
|
|
hres = S_OK;
|
||
|
|
} else {
|
||
|
|
RPF("ERROR %s: arg %d: invalid UNICODE string", s_szProc, iarg);
|
||
|
|
hres = E_INVALIDARG;
|
||
|
|
}
|
||
|
|
return hres;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
*
|
||
|
|
* @doc INTERNAL
|
||
|
|
*
|
||
|
|
* @func HRESULT | hresFullValidPesc_ |
|
||
|
|
*
|
||
|
|
* Validate that the parameter is a valid <t DIEFFESCAPE>
|
||
|
|
* structure.
|
||
|
|
*
|
||
|
|
* This is merely a wrapper around other validation methods.
|
||
|
|
*
|
||
|
|
* @parm LPDIEFFESCAPE | pesc |
|
||
|
|
*
|
||
|
|
* Structure to "validate".
|
||
|
|
*
|
||
|
|
* @returns
|
||
|
|
*
|
||
|
|
* <c S_OK> if the parameter is valid.
|
||
|
|
*
|
||
|
|
* <c E_INVALIDARG> if the pointer itself is bogus.
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
STDMETHODIMP
|
||
|
|
hresFullValidPesc_(LPDIEFFESCAPE pesc, LPCSTR s_szProc, int iarg)
|
||
|
|
{
|
||
|
|
HRESULT hres;
|
||
|
|
|
||
|
|
if (SUCCEEDED(hres = hresFullValidWriteNoScramblePxCb(pesc, DIEFFESCAPE,
|
||
|
|
iarg)) &&
|
||
|
|
SUCCEEDED(hres = hresFullValidReadPvCb(pesc->lpvInBuffer,
|
||
|
|
pesc->cbInBuffer, iarg)) &&
|
||
|
|
SUCCEEDED(hres = hresFullValidWriteNoScramblePvCb(pesc->lpvOutBuffer,
|
||
|
|
pesc->cbOutBuffer, iarg))) {
|
||
|
|
} else {
|
||
|
|
}
|
||
|
|
|
||
|
|
return hres;
|
||
|
|
}
|