int rtldrNativeLoad(const char *pszFilename, uintptr_t *phHandle, uint32_t fFlags, PRTERRINFO pErrInfo)
{
Assert(sizeof(*phHandle) >= sizeof(HMODULE));
AssertReturn(!(fFlags & RTLDRLOAD_FLAGS_GLOBAL), VERR_INVALID_FLAGS);
AssertLogRelMsgReturn(RTPathStartsWithRoot(pszFilename), /* Relative names will still be applied to the search path. */
("pszFilename='%s'\n", pszFilename),
VERR_INTERNAL_ERROR_2);
/*
* Convert to UTF-16 and make sure it got a .DLL suffix.
*/
int rc;
RTUTF16 *pwszNative = NULL;
if (RTPathHasSuffix(pszFilename))
rc = RTStrToUtf16(pszFilename, &pwszNative);
else
{
size_t cwcAlloc;
rc = RTStrCalcUtf16LenEx(pszFilename, RTSTR_MAX, &cwcAlloc);
if (RT_SUCCESS(rc))
{
cwcAlloc += sizeof(".DLL");
pwszNative = RTUtf16Alloc(cwcAlloc * sizeof(RTUTF16));
if (pwszNative)
{
size_t cwcNative;
rc = RTStrToUtf16Ex(pszFilename, RTSTR_MAX, &pwszNative, cwcAlloc, &cwcNative);
if (RT_SUCCESS(rc))
rc = RTUtf16CopyAscii(&pwszNative[cwcNative], cwcAlloc - cwcNative, ".DLL");
}
else
rc = VERR_NO_UTF16_MEMORY;
}
}
if (RT_SUCCESS(rc))
{
/*
* Attempt load.
*/
HMODULE hmod;
static int s_iSearchDllLoadDirSupported = 0;
if ( !(fFlags & RTLDRLOAD_FLAGS_NT_SEARCH_DLL_LOAD_DIR)
|| s_iSearchDllLoadDirSupported < 0)
hmod = LoadLibraryExW(pwszNative, NULL, 0);
else
{
hmod = LoadLibraryExW(pwszNative, NULL, LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR | LOAD_LIBRARY_SEARCH_SYSTEM32
| LOAD_LIBRARY_SEARCH_APPLICATION_DIR);
if (s_iSearchDllLoadDirSupported == 0)
{
if (hmod != NULL || GetLastError() != ERROR_INVALID_PARAMETER)
s_iSearchDllLoadDirSupported = 1;
else
{
s_iSearchDllLoadDirSupported = -1;
hmod = LoadLibraryExW(pwszNative, NULL, 0);
}
}
}
if (hmod)
{
*phHandle = (uintptr_t)hmod;
RTUtf16Free(pwszNative);
return VINF_SUCCESS;
}
/*
* Try figure why it failed to load.
*/
DWORD dwErr = GetLastError();
rc = RTErrConvertFromWin32(dwErr);
rc = RTErrInfoSetF(pErrInfo, rc, "GetLastError=%u", dwErr);
}
else
rc = RTErrInfoSetF(pErrInfo, rc, "Error converting UTF-8 to UTF-16 string.");
RTUtf16Free(pwszNative);
return rc;
}
RTDECL(int) RTUtf16CatAscii(PRTUTF16 pwszDst, size_t cwcDst, const char *pszSrc)
{
PRTUTF16 pwszDst2 = (PRTUTF16)RTUtf16End(pwszDst, cwcDst);
AssertReturn(pwszDst2, VERR_INVALID_PARAMETER);
return RTUtf16CopyAscii(pwszDst2, cwcDst - (pwszDst2 - pwszDst), pszSrc);
}
