char *
CodeSet_GetAltPathName(const utf16_t *pathW) // IN
{
char *path = NULL;
#if defined(_WIN32)
DWORD res;
utf16_t shortPathW[_MAX_PATH];
ASSERT(pathW);
res = GetShortPathNameW(pathW, shortPathW, ARRAYSIZE(shortPathW));
if ((res == 0) || (res >= ARRAYSIZE(shortPathW))) {
goto exit;
}
if (!CodeSetOld_Utf16leToCurrent((const char *)shortPathW,
wcslen(shortPathW) * sizeof *shortPathW,
&path, NULL)) {
goto exit;
}
exit:
#endif // _WIN32
return path;
}
Bool
CodeSet_Utf16leToCurrent(const char *bufIn, // IN
size_t sizeIn, // IN
char **bufOut, // OUT
size_t *sizeOut) // OUT
{
DynBuf db;
Bool ok;
/*
* Fallback if necessary.
*/
if (dontUseIcu) {
return CodeSetOld_Utf16leToCurrent(bufIn, sizeIn, bufOut, sizeOut);
}
DynBuf_Init(&db);
ok = CodeSet_GenericToGenericDb("UTF-16LE", bufIn, sizeIn,
CodeSet_GetCurrentCodeSet(), 0, &db);
return CodeSetDynBufFinalize(ok, &db, bufOut, sizeOut);
}
Bool
CodeSet_Init(const char *icuDataDir) // IN: ICU data file location in Current code page.
// Default is used if NULL.
{
DynBuf dbpath;
#ifdef _WIN32
DWORD attribs;
utf16_t *modPath = NULL;
utf16_t *lastSlash;
utf16_t *wpath;
HANDLE hFile = INVALID_HANDLE_VALUE;
HANDLE hMapping = NULL;
void *memMappedData = NULL;
#else
struct stat finfo;
#endif
char *path = NULL;
Bool ret = FALSE;
DynBuf_Init(&dbpath);
#ifdef USE_ICU
/*
* We're using system ICU, which finds its own data. So nothing to
* do here.
*/
dontUseIcu = FALSE;
ret = TRUE;
goto exit;
#endif
/*
* ********************* WARNING
* Must avoid recursive calls into the codeset library here, hence
* the idiotic hoop-jumping. DO NOT change any of these calls to
* wrapper equivalents or call any other functions that may perform
* string conversion.
* ********************* WARNING
*/
#ifdef _WIN32 // {
#if vmx86_devel
/*
* Devel builds use toolchain directory first.
*/
{
WCHAR icuFilePath[MAX_PATH] = { 0 };
DWORD n = ExpandEnvironmentStringsW(ICU_DATA_FILE_PATH,
icuFilePath, ARRAYSIZE(icuFilePath));
if (n > 0 && n < ARRAYSIZE(icuFilePath)) {
attribs = GetFileAttributesW(icuFilePath);
if ((INVALID_FILE_ATTRIBUTES != attribs) ||
(attribs & FILE_ATTRIBUTE_DIRECTORY) == 0) {
if (!CodeSetOld_Utf16leToCurrent((const char *) icuFilePath,
n * sizeof *icuFilePath,
&path, NULL)) {
goto exit;
}
goto found;
}
}
}
#endif
if (icuDataDir) {
/*
* Data file must be in the specified directory.
*/
size_t length = strlen(icuDataDir);
if (!DynBuf_Append(&dbpath, icuDataDir, length)) {
goto exit;
}
if (length && icuDataDir[length - 1] != DIRSEPC) {
if (!DynBuf_Append(&dbpath, DIRSEPS, strlen(DIRSEPS))) {
goto exit;
}
}
if (!DynBuf_Append(&dbpath, ICU_DATA_FILE, strlen(ICU_DATA_FILE)) ||
!DynBuf_Append(&dbpath, "\0", 1)) {
goto exit;
}
/*
* Check for file existence.
*/
attribs = GetFileAttributesA(DynBuf_Get(&dbpath));
if ((INVALID_FILE_ATTRIBUTES == attribs) ||
(attribs & FILE_ATTRIBUTE_DIRECTORY)) {
goto exit;
}
path = (char *) DynBuf_Detach(&dbpath);
} else {
/*
* Data file must be in the directory of the current module
* (i.e. the module that contains CodeSet_Init()).
*/
HMODULE hModule = W32Util_GetModuleByAddress((void *) CodeSet_Init);
if (!hModule) {
goto exit;
}
modPath = CodeSetGetModulePath(hModule);
if (!modPath) {
goto exit;
}
lastSlash = wcsrchr(modPath, DIRSEPC_W);
if (!lastSlash) {
goto exit;
}
*lastSlash = L'\0';
if (!DynBuf_Append(&dbpath, modPath,
wcslen(modPath) * sizeof(utf16_t)) ||
!DynBuf_Append(&dbpath, DIRSEPS_W,
wcslen(DIRSEPS_W) * sizeof(utf16_t)) ||
!DynBuf_Append(&dbpath, ICU_DATA_FILE_W,
wcslen(ICU_DATA_FILE_W) * sizeof(utf16_t)) ||
!DynBuf_Append(&dbpath, L"\0", 2)) {
goto exit;
}
/*
* Since u_setDataDirectory can't handle UTF-16, we would have to
* now convert this path to local encoding. But that fails when
* the module is in a path containing characters not in the
* local encoding (see 282524). So we'll memory-map the file
* instead and call udata_setCommonData() below.
*/
wpath = (utf16_t *) DynBuf_Get(&dbpath);
hFile = CreateFileW(wpath, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0,
NULL);
if (INVALID_HANDLE_VALUE == hFile) {
goto exit;
}
hMapping = CreateFileMapping(hFile, NULL, PAGE_READONLY, 0, 0, NULL);
if (NULL == hMapping) {
goto exit;
}
memMappedData = MapViewOfFile(hMapping, FILE_MAP_READ, 0, 0, 0);
if (NULL == memMappedData) {
goto exit;
}
}
#else // } _WIN32 {
#if vmx86_devel
{
char *modPath;
char *lastSlash;
/*
* Devel builds use toolchain directory first.
*/
if (stat(ICU_DATA_FILE_PATH, &finfo) >= 0 && !S_ISDIR(finfo.st_mode)) {
if ((path = strdup(ICU_DATA_FILE_PATH)) == NULL) {
goto exit;
}
goto found;
}
/*
* Then we try module directory, if we can get it.
*/
modPath = CodeSetGetModulePath(HGMP_PRIVILEGE);
if (modPath) {
lastSlash = strrchr(modPath, DIRSEPC);
if (lastSlash) {
*lastSlash = '\0';
if (DynBuf_Append(&dbpath, modPath, strlen(modPath)) &&
DynBuf_Append(&dbpath, DIRSEPS, strlen(DIRSEPS)) &&
DynBuf_Append(&dbpath, ICU_DATA_FILE,
strlen(ICU_DATA_FILE)) &&
DynBuf_Append(&dbpath, "\0", 1)) {
if ((stat((const char *) DynBuf_Get(&dbpath), &finfo) >= 0) &&
!S_ISDIR(finfo.st_mode)) {
free(modPath);
path = DynBuf_Detach(&dbpath);
goto found;
} else {
DynBuf_SetSize(&dbpath, 0);
}
}
}
free(modPath);
}
}
#endif // vmx86_devel
/*
* Data file is either in POSIX_ICU_DIR or user specified dir.
*/
if (!icuDataDir) {
icuDataDir = POSIX_ICU_DIR;
}
if (!DynBuf_Append(&dbpath, icuDataDir, strlen(icuDataDir)) ||
!DynBuf_Append(&dbpath, DIRSEPS, strlen(DIRSEPS)) ||
!DynBuf_Append(&dbpath, ICU_DATA_FILE, strlen(ICU_DATA_FILE)) ||
!DynBuf_Append(&dbpath, "\0", 1)) {
goto exit;
}
/*
* Check for file existence. (DO NOT CHANGE TO 'stat' WRAPPER).
*/
path = (char *) DynBuf_Detach(&dbpath);
if (stat(path, &finfo) < 0 || S_ISDIR(finfo.st_mode)) {
goto exit;
}
#endif // } _WIN32
#if vmx86_devel
found:
#endif
#ifdef _WIN32
if (memMappedData) {
/*
* Tell ICU to use this mapped data.
*/
UErrorCode uerr = U_ZERO_ERROR;
ASSERT(memMappedData);
udata_setCommonData(memMappedData, &uerr);
if (uerr != U_ZERO_ERROR) {
UnmapViewOfFile(memMappedData);
goto exit;
}
} else {
#endif
/*
* Tell ICU to use this directory.
*/
u_setDataDirectory(path);
#ifdef _WIN32
}
#endif
dontUseIcu = FALSE;
ret = TRUE;
exit:
if (!ret) {
/*
* There was an error initing ICU, but if we can fall back on
* non-ICU (old CodeSet) then things are OK.
*/
if (CODESET_CAN_FALLBACK_ON_NON_ICU) {
ret = TRUE;
dontUseIcu = TRUE;
#ifdef _WIN32
OutputDebugStringW(L"CodeSet_Init: no ICU\n");
#endif
}
}
#ifdef _WIN32
free(modPath);
if (hMapping) {
CloseHandle(hMapping);
}
if (hFile != INVALID_HANDLE_VALUE) {
CloseHandle(hFile);
}
#endif
free(path);
DynBuf_Destroy(&dbpath);
return ret;
}
