#include <windows.h>
#include "netmpr.h"
#include "pwlapi.h"
#include <pcerr.h>
/* Avoid inconsistent-DLL-linkage warnings on shell32 and comctl32 APIs. */
#undef DECLSPEC_IMPORT
#define DECLSPEC_IMPORT
#include <prsht.h>
#include <shellapi.h>
#pragma warning(disable:4229) // No warnings when modifiers used on data
// Delay loading mechanism. This allows you to write code as if you are
// calling implicitly linked APIs, and yet have these APIs really be
// explicitly linked. You can reduce the initial number of DLLs that
// are loaded (load on demand) using this technique.
//
// Use the following macros to indicate which APIs/DLLs are delay-linked
// and -loaded.
//
// DELAY_LOAD
// DELAY_LOAD_HRESULT
// DELAY_LOAD_SAFEARRAY
// DELAY_LOAD_UINT
// DELAY_LOAD_INT
// DELAY_LOAD_VOID
//
// Use these macros for APIs that are exported by ordinal only.
//
// DELAY_LOAD_ORD
// DELAY_LOAD_ORD_VOID
//
// Use these macros for APIs that only exist on the integrated-shell
// installations (i.e., a new shell32 is on the system).
//
// DELAY_LOAD_SHELL
// DELAY_LOAD_SHELL_HRESULT
// DELAY_LOAD_SHELL_VOID
//
//
// These macros produce code that looks like
#if 0
BOOL GetOpenFileNameA(LPOPENFILENAME pof)
{
static BOOL (*pfnGetOpenFileNameA)(LPOPENFILENAME pof);
_GetProcFromDLL(&g_hinstCOMDLG32, "COMDLG32.DLL", "GetOpenFileNameA", &pfnGetoptnFileNameA);
if (pfnGetOpenFileNameA)
return pfnGetOpenFileNameA(pof);
return -1;
}
#endif
/**********************************************************************/
void _GetProcFromDLL(HINSTANCE* phinst, LPCSTR pszDLL, FARPROC* ppfn, LPCSTR pszProc)
{
// If it's already loaded, return.
if (*ppfn) {
return;
}
if (*phinst == NULL) {
*phinst = LoadLibrary(pszDLL);
if (*phinst == NULL) {
return;
}
}
*ppfn = GetProcAddress(*phinst, pszProc);
}
#define DELAY_LOAD_MAP(_hinst, _dll, _ret, _fnpriv, _fn, _args, _nargs, _err) \
_ret __stdcall _fnpriv _args \
{ \
static _ret (* __stdcall _pfn##_fn) _args = NULL; \
_GetProcFromDLL(&_hinst, #_dll, (FARPROC*)&_pfn##_fn, #_fn); \
if (_pfn##_fn) \
return _pfn##_fn _nargs; \
return (_ret)_err; \
}
#define DELAY_LOAD_ERR(_hinst, _dll, _ret, _fn, _args, _nargs, _err) DELAY_LOAD_MAP(_hinst, _dll, _ret, _fn, _fn, _args, _nargs, _err)
#define DELAY_LOAD(_hinst, _dll, _ret, _fn, _args, _nargs) DELAY_LOAD_ERR(_hinst, _dll, _ret, _fn, _args, _nargs, 0)
#define DELAY_LOAD_HRESULT(_hinst, _dll, _fn, _args, _nargs) DELAY_LOAD_ERR(_hinst, _dll, HRESULT, _fn, _args, _nargs, E_FAIL)
#define DELAY_LOAD_SAFEARRAY(_hinst, _dll, _fn, _args, _nargs) DELAY_LOAD_ERR(_hinst, _dll, SAFEARRAY *, _fn, _args, _nargs, NULL)
#define DELAY_LOAD_DWORD(_hinst, _dll, _fn, _args, _nargs) DELAY_LOAD_ERR(_hinst, _dll, DWORD, _fn, _args, _nargs, 0)
#define DELAY_LOAD_UINT(_hinst, _dll, _fn, _args, _nargs) DELAY_LOAD_ERR(_hinst, _dll, UINT, _fn, _args, _nargs, 0)
#define DELAY_LOAD_INT(_hinst, _dll, _fn, _args, _nargs) DELAY_LOAD_ERR(_hinst, _dll, INT, _fn, _args, _nargs, 0)
#define DELAY_MAP_DWORD(_hinst, _dll, _fnpriv, _fn, _args, _nargs) DELAY_LOAD_MAP(_hinst, _dll, DWORD, _fnpriv, _fn, _args, _nargs, 0)
#define DELAY_LOAD_VOID(_hinst, _dll, _fn, _args, _nargs) \
void __stdcall _fn _args \
{ \
static void (* __stdcall _pfn##_fn) _args = NULL; \
_GetProcFromDLL(&_hinst, #_dll, (FARPROC*)&_pfn##_fn, #_fn); \
if (_pfn##_fn) \
_pfn##_fn _nargs; \
return; \
}
//
// For private entrypoints exported by ordinal.
//
#define DELAY_LOAD_ORD_ERR(_hinst, _dll, _ret, _fn, _ord, _args, _nargs, _err) \
_ret __stdcall _fn _args \
{ \
static _ret (* __stdcall _pfn##_fn) _args = NULL; \
_GetProcFromDLL(&_hinst, #_dll, (FARPROC*)&_pfn##_fn, (LPCSTR)_ord); \
if (_pfn##_fn) \
return _pfn##_fn _nargs; \
return (_ret)_err; \
}
#define DELAY_LOAD_ORD(_hinst, _dll, _ret, _fn, _ord, _args, _nargs) DELAY_LOAD_ORD_ERR(_hinst, _dll, _ret, _fn, _ord, _args, _nargs, 0)
#define DELAY_LOAD_ORD_VOID(_hinst, _dll, _fn, _ord, _args, _nargs) \
void __stdcall _fn _args \
{ \
static void (* __stdcall _pfn##_fn) _args = NULL; \
_GetProcFromDLL(&_hinst, #_dll, (FARPROC*)&_pfn##_fn, (LPCSTR)_ord); \
if (_pfn##_fn) \
_pfn##_fn _nargs; \
return; \
}
/**********************************************************************/
/**********************************************************************/
// --------- MSPWL32.DLL ---------------
HINSTANCE g_hinstMSPWL32 = NULL;
#define DELAY_LOAD_PWL(_fn, _ord, _args, _nargs) DELAY_LOAD_ORD_ERR(g_hinstMSPWL32, mspwl32.dll, APIERR, _fn, _ord, _args, _nargs, IERR_CachingDisabled)
DELAY_LOAD_PWL(OpenPasswordCache, 10,
(LPHPWL lphCache,const CHAR *pszUsername,const CHAR *pszPassword,BOOL fWritable),
(lphCache, pszUsername, pszPassword, fWritable));
DELAY_LOAD_PWL(ClosePasswordCache, 11,
(HPWL hCache, BOOL fDiscardMemory), (hCache, fDiscardMemory));
DELAY_LOAD_PWL(CreatePasswordCache, 12,
(LPHPWL lphCache,const CHAR *pszUsername,const CHAR *pszPassword),
(lphCache, pszUsername, pszPassword));
DELAY_LOAD_PWL(DeletePasswordCache, 22,
(const CHAR *pszUsername), (pszUsername));
DELAY_LOAD_PWL(FindCacheResource, 16,
(HPWL hCache,const CHAR *pbResource,WORD cbResource,CHAR *pbBuffer,WORD cbBuffer,UCHAR nType),
(hCache, pbResource, cbResource, pbBuffer, cbBuffer, nType));
DELAY_LOAD_PWL(DeleteCacheResource, 17,
(HPWL hCache,const CHAR *pbResource,WORD cbResource,UCHAR nType),
(hCache, pbResource, cbResource, nType));
DELAY_LOAD_PWL(AddCacheResource, 18,
(HPWL hCache,const CHAR *pbResource,WORD cbResource,const CHAR *pbPassword,WORD cbPassword,UCHAR nType,UINT fnFlags),
(hCache, pbResource, cbResource, pbPassword, cbPassword, nType, fnFlags));
DELAY_LOAD_PWL(SetCachePassword, 21,
(HPWL hCache, const CHAR *pszNewPassword),
(hCache, pszNewPassword));
// --------- MPR.DLL ---------------
HINSTANCE g_hinstMPR = NULL;
DELAY_LOAD_ERR(g_hinstMPR, mpr.dll, DWORD, WNetCachePassword,
(LPSTR pbResource, WORD cbResource, LPSTR pbPassword, WORD cbPassword, BYTE nType, UINT fnFlags),
(pbResource, cbResource, pbPassword, cbPassword, nType, fnFlags),
WN_CANCEL);
DELAY_LOAD_ERR(g_hinstMPR, mpr.dll, DWORD, WNetGetCachedPassword,
(LPSTR pbResource, WORD cbResource, LPSTR pbPassword, LPWORD pcbPassword, BYTE nType),
(pbResource, cbResource, pbPassword, pcbPassword, nType),
WN_CANCEL);
DELAY_LOAD_ERR(g_hinstMPR, mpr.dll, DWORD, WNetRemoveCachedPassword,
(LPSTR pbResource, WORD cbResource, BYTE nType),
(pbResource, cbResource, nType),
WN_CANCEL);
// --------- COMCTL32.DLL ---------------
HINSTANCE g_hinstCOMCTL32 = NULL;
DELAY_LOAD(g_hinstCOMCTL32, comctl32.dll, HPROPSHEETPAGE, CreatePropertySheetPageA,
(LPCPROPSHEETPAGEA lpPage), (lpPage));
DELAY_LOAD(g_hinstCOMCTL32, comctl32.dll, INT_PTR, PropertySheetA,
(LPCPROPSHEETHEADERA lpHdr), (lpHdr));
// --------- SHELL32.DLL ----------------
HINSTANCE g_hinstSHELL32 = NULL;
#ifdef UNICODE
DELAY_LOAD(g_hinstSHELL32, SHELL32.DLL, BOOL, ShellExecuteExW,
(LPSHELLEXECUTEINFOW lpExecInfo), (lpExecInfo));
#else
DELAY_LOAD(g_hinstSHELL32, SHELL32.DLL, BOOL, ShellExecuteExA,
(LPSHELLEXECUTEINFOA lpExecInfo), (lpExecInfo));
#endif
DELAY_LOAD_ORD_VOID(g_hinstSHELL32, SHELL32.DLL, SHFlushSFCache, 526, (), ());
#pragma warning(default:4229)