static OSErr
GetFileSpecs(
char *path, /* The path to query. */
FSSpec *pathSpecPtr, /* Filled with information about path. */
FSSpec *dirSpecPtr, /* Filled with information about path's
* parent directory. */
Boolean *pathExistsPtr, /* Set to true if path actually exists,
* false if it doesn't or there was an
* error reading the specified path. */
Boolean *pathIsDirectoryPtr)/* Set to true if path is itself a directory,
* otherwise false. */
{
char *dirName;
OSErr err;
int argc;
char **argv;
long d;
Tcl_DString buffer;
*pathExistsPtr = false;
*pathIsDirectoryPtr = false;
Tcl_DStringInit(&buffer);
Tcl_SplitPath(path, &argc, &argv);
if (argc == 1) {
dirName = ":";
} else {
dirName = Tcl_JoinPath(argc - 1, argv, &buffer);
}
err = FSpLocationFromPath(strlen(dirName), dirName, dirSpecPtr);
Tcl_DStringFree(&buffer);
ckfree((char *) argv);
if (err == noErr) {
err = FSpLocationFromPath(strlen(path), path, pathSpecPtr);
if (err == noErr) {
*pathExistsPtr = true;
err = FSpGetDirectoryID(pathSpecPtr, &d, pathIsDirectoryPtr);
} else if (err == fnfErr) {
err = noErr;
}
}
return err;
}
int
TkpInit(
Tcl_Interp *interp) /* Interp to initialize. */
{
char *libDir, *tempPath;
Tcl_DString path;
int result;
/*
* The following does not work with
* safe interps because file exists is restricted.
* to be fixed using [interp issafe] like in Unix & Windows.
*/
static char initCmd[] = "\
proc sourcePath {file} {\n\
global tk_library\n\
if {[catch {uplevel #0 [list source $tk_library:$file.tcl]}] == 0} {\n\
return\n\
}\n\
if {[catch {uplevel #0 [list source -rsrc $file]}] == 0} {\n\
return\n\
}\n\
rename sourcePath {}\n\
set msg \"can't find $file resource or a usable $file.tcl file\"\n\
append msg \" perhaps you need to install Tk or set your \"\n\
append msg \"TK_LIBRARY environment variable?\"\n\
error $msg\n\
}\n\
sourcePath tk\n\
sourcePath button\n\
sourcePath dialog\n\
sourcePath entry\n\
sourcePath focus\n\
sourcePath listbox\n\
sourcePath menu\n\
sourcePath optMenu\n\
sourcePath palette\n\
sourcePath scale\n\
sourcePath scrlbar\n\
sourcePath tearoff\n\
sourcePath text\n\
sourcePath bgerror\n\
sourcePath msgbox\n\
sourcePath comdlg\n\
rename sourcePath {}";
Tcl_DStringInit(&path);
/*
* The tk_library path can be found in several places. Here is the order
* in which the are searched.
* 1) the variable may already exist
* 2) env array
* 3) System Folder:Extensions:Tool Command Language:
*/
libDir = Tcl_GetVar(interp, "tk_library", TCL_GLOBAL_ONLY);
if (libDir == NULL) {
libDir = Tcl_GetVar2(interp, "env", "TK_LIBRARY", TCL_GLOBAL_ONLY);
}
if (libDir == NULL) {
tempPath = Tcl_GetVar2(interp, "env", "EXT_FOLDER", TCL_GLOBAL_ONLY);
if (tempPath != NULL) {
Tcl_DString libPath;
char *argv[3];
argv[0] = tempPath;
argv[1] = "Tool Command Language";
Tcl_DStringInit(&libPath);
Tcl_DStringAppend(&libPath, "tk", -1);
Tcl_DStringAppend(&libPath, TK_VERSION, -1);
argv[2] = libPath.string;
Tcl_JoinPath(3, argv, &path);
Tcl_DStringFree(&libPath);
libDir = path.string;
}
}
if (libDir == NULL) {
libDir = "no library";
}
/*
* Assign path to the global Tcl variable tcl_library.
*/
Tcl_SetVar(interp, "tk_library", libDir, TCL_GLOBAL_ONLY);
Tcl_DStringFree(&path);
result = Tcl_Eval(interp, initCmd);
return result;
}
/*
*----------------------------------------------------------------------
*
* TkpGetAppName --
*
* Retrieves the name of the current application from a platform
* specific location. On the Macintosh we look to see if the
* App Name is specified in a resource. If not, the application
* name is the root of the tail of the path contained in the tcl
* variable argv0.
*
* Results:
* Returns the application name in the given Tcl_DString.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
void
TkpGetAppName(
Tcl_Interp *interp, /* The main interpreter. */
Tcl_DString *namePtr) /* A previously initialized Tcl_DString. */
{
int argc;
char **argv = NULL, *name, *p;
Handle h = NULL;
h = GetNamedResource('STR ', "\pTk App Name");
if (h != NULL) {
HLock(h);
Tcl_DStringAppend(namePtr, (*h)+1, **h);
HUnlock(h);
ReleaseResource(h);
return;
}
name = Tcl_GetVar(interp, "argv0", TCL_GLOBAL_ONLY);
if (name != NULL) {
Tcl_SplitPath(name, &argc, &argv);
if (argc > 0) {
name = argv[argc-1];
p = strrchr(name, '.');
if (p != NULL) {
*p = '\0';
}
} else {
name = NULL;
}
}
if ((name == NULL) || (*name == 0)) {
name = "tk";
}
Tcl_DStringAppend(namePtr, name, -1);
if (argv != NULL) {
ckfree((char *)argv);
}
}
/*
*----------------------------------------------------------------------
*
* TkpDisplayWarning --
*
* This routines is called from Tk_Main to display warning
* messages that occur during startup.
*
* Results:
* None.
*
* Side effects:
* Displays a message box.
*
*----------------------------------------------------------------------
*/
void
TkpDisplayWarning(
char *msg, /* Message to be displayed. */
char *title) /* Title of warning. */
{
Tcl_DString ds;
Tcl_DStringInit(&ds);
Tcl_DStringAppend(&ds, title, -1);
Tcl_DStringAppend(&ds, ": ", -1);
Tcl_DStringAppend(&ds, msg, -1);
panic(Tcl_DStringValue(&ds));
Tcl_DStringFree(&ds);
}
void
TclpInitLibraryPath(
char **valuePtr,
int *lengthPtr,
Tcl_Encoding *encodingPtr)
{
#define LIBRARY_SIZE 32
Tcl_Obj *pathPtr, *objPtr;
CONST char *str;
Tcl_DString buffer;
pathPtr = Tcl_NewObj();
/*
* Look for the library relative to the TCL_LIBRARY env variable. If the
* last dirname in the TCL_LIBRARY path does not match the last dirname in
* the installLib variable, use the last dir name of installLib in
* addition to the orginal TCL_LIBRARY path.
*/
str = getenv("TCL_LIBRARY"); /* INTL: Native. */
Tcl_ExternalToUtfDString(NULL, str, -1, &buffer);
str = Tcl_DStringValue(&buffer);
if ((str != NULL) && (str[0] != '\0')) {
Tcl_DString ds;
int pathc;
CONST char **pathv;
char installLib[LIBRARY_SIZE];
Tcl_DStringInit(&ds);
/*
* Initialize the substrings used when locating an executable. The
* installLib variable computes the path as though the executable is
* installed.
*/
sprintf(installLib, "lib/tcl%s", TCL_VERSION);
/*
* If TCL_LIBRARY is set, search there.
*/
objPtr = Tcl_NewStringObj(str, -1);
Tcl_ListObjAppendElement(NULL, pathPtr, objPtr);
Tcl_SplitPath(str, &pathc, &pathv);
if ((pathc > 0) && (strcasecmp(installLib + 4, pathv[pathc-1]) != 0)) {
/*
* If TCL_LIBRARY is set but refers to a different tcl
* installation than the current version, try fiddling with the
* specified directory to make it refer to this installation by
* removing the old "tclX.Y" and substituting the current version
* string.
*/
pathv[pathc - 1] = installLib + 4;
str = Tcl_JoinPath(pathc, pathv, &ds);
objPtr = Tcl_NewStringObj(str, Tcl_DStringLength(&ds));
Tcl_ListObjAppendElement(NULL, pathPtr, objPtr);
Tcl_DStringFree(&ds);
}
ckfree((char *) pathv);
}
/*
* Finally, look for the library relative to the compiled-in path. This is
* needed when users install Tcl with an exec-prefix that is different
* from the prefix.
*/
{
#ifdef HAVE_COREFOUNDATION
char tclLibPath[MAXPATHLEN + 1];
if (MacOSXGetLibraryPath(NULL, MAXPATHLEN, tclLibPath) == TCL_OK) {
str = tclLibPath;
} else
#endif /* HAVE_COREFOUNDATION */
{
/*
* TODO: Pull this value from the TIP 59 table.
*/
str = defaultLibraryDir;
}
if (str[0] != '\0') {
objPtr = Tcl_NewStringObj(str, -1);
Tcl_ListObjAppendElement(NULL, pathPtr, objPtr);
}
}
Tcl_DStringFree(&buffer);
*encodingPtr = Tcl_GetEncoding(NULL, NULL);
str = Tcl_GetStringFromObj(pathPtr, lengthPtr);
*valuePtr = ckalloc((unsigned int) (*lengthPtr)+1);
memcpy(*valuePtr, str, (size_t)(*lengthPtr)+1);
Tcl_DecrRefCount(pathPtr);
}
static void
AppendEnvironment(
Tcl_Obj *pathPtr,
const char *lib)
{
int pathc;
WCHAR wBuf[MAX_PATH];
char buf[MAX_PATH * TCL_UTF_MAX];
Tcl_Obj *objPtr;
Tcl_DString ds;
const char **pathv;
char *shortlib;
/*
* The shortlib value needs to be the tail component of the lib path. For
* example, "lib/tcl8.4" -> "tcl8.4" while "usr/share/tcl8.5" -> "tcl8.5".
*/
for (shortlib = (char *) &lib[strlen(lib)-1]; shortlib>lib ; shortlib--) {
if (*shortlib == '/') {
if ((unsigned)(shortlib - lib) == strlen(lib) - 1) {
Tcl_Panic("last character in lib cannot be '/'");
}
shortlib++;
break;
}
}
if (shortlib == lib) {
Tcl_Panic("no '/' character found in lib");
}
/*
* The "L" preceeding the TCL_LIBRARY string is used to tell VC++ that
* this is a unicode string.
*/
if (GetEnvironmentVariableW(L"TCL_LIBRARY", wBuf, MAX_PATH) == 0) {
buf[0] = '\0';
GetEnvironmentVariableA("TCL_LIBRARY", buf, MAX_PATH);
} else {
ToUtf(wBuf, buf);
}
if (buf[0] != '\0') {
objPtr = Tcl_NewStringObj(buf, -1);
Tcl_ListObjAppendElement(NULL, pathPtr, objPtr);
TclWinNoBackslash(buf);
Tcl_SplitPath(buf, &pathc, &pathv);
/*
* The lstrcmpi() will work even if pathv[pathc-1] is random UTF-8
* chars because I know shortlib is ascii.
*/
if ((pathc > 0) && (lstrcmpiA(shortlib, pathv[pathc - 1]) != 0)) {
const char *str;
/*
* TCL_LIBRARY is set but refers to a different tcl installation
* than the current version. Try fiddling with the specified
* directory to make it refer to this installation by removing the
* old "tclX.Y" and substituting the current version string.
*/
pathv[pathc - 1] = shortlib;
Tcl_DStringInit(&ds);
str = Tcl_JoinPath(pathc, pathv, &ds);
objPtr = Tcl_NewStringObj(str, Tcl_DStringLength(&ds));
Tcl_DStringFree(&ds);
} else {
objPtr = Tcl_NewStringObj(buf, -1);
}
Tcl_ListObjAppendElement(NULL, pathPtr, objPtr);
ckfree((char *) pathv);
}
}
int
TclpRenameFile(
char *src, /* Pathname of file or dir to be renamed. */
char *dst) /* New pathname for file or directory. */
{
DWORD srcAttr, dstAttr;
/*
* Would throw an exception under NT if one of the arguments is a
* char block device.
*/
try {
if (MoveFile(src, dst) != FALSE) {
return TCL_OK;
}
} except (-1) {}
TclWinConvertError(GetLastError());
srcAttr = GetFileAttributes(src);
dstAttr = GetFileAttributes(dst);
if (srcAttr == (DWORD) -1) {
srcAttr = 0;
}
if (dstAttr == (DWORD) -1) {
dstAttr = 0;
}
if (errno == EBADF) {
errno = EACCES;
return TCL_ERROR;
}
if ((errno == EACCES) && (TclWinGetPlatformId() == VER_PLATFORM_WIN32s)) {
if ((srcAttr != 0) && (dstAttr != 0)) {
/*
* Win32s reports trying to overwrite an existing file or directory
* as EACCES.
*/
errno = EEXIST;
}
}
if (errno == EACCES) {
decode:
if (srcAttr & FILE_ATTRIBUTE_DIRECTORY) {
char srcPath[MAX_PATH], dstPath[MAX_PATH];
int srcArgc, dstArgc;
char **srcArgv, **dstArgv;
char *srcRest, *dstRest;
int size;
size = GetFullPathName(src, sizeof(srcPath), srcPath, &srcRest);
if ((size == 0) || (size > sizeof(srcPath))) {
return TCL_ERROR;
}
size = GetFullPathName(dst, sizeof(dstPath), dstPath, &dstRest);
if ((size == 0) || (size > sizeof(dstPath))) {
return TCL_ERROR;
}
if (srcRest == NULL) {
srcRest = srcPath + strlen(srcPath);
}
if (strnicmp(srcPath, dstPath, srcRest - srcPath) == 0) {
/*
* Trying to move a directory into itself.
*/
errno = EINVAL;
return TCL_ERROR;
}
Tcl_SplitPath(srcPath, &srcArgc, &srcArgv);
Tcl_SplitPath(dstPath, &dstArgc, &dstArgv);
if (srcArgc == 1) {
/*
* They are trying to move a root directory. Whether
* or not it is across filesystems, this cannot be
* done.
*/
errno = EINVAL;
} else if ((srcArgc > 0) && (dstArgc > 0) &&
(stricmp(srcArgv[0], dstArgv[0]) != 0)) {
/*
* If src is a directory and dst filesystem != src
* filesystem, errno should be EXDEV. It is very
* important to get this behavior, so that the caller
* can respond to a cross filesystem rename by
* simulating it with copy and delete. The MoveFile
* system call already handles the case of moving a
* file between filesystems.
*/
errno = EXDEV;
}
ckfree((char *) srcArgv);
ckfree((char *) dstArgv);
}
/*
* Other types of access failure is that dst is a read-only
* filesystem, that an open file referred to src or dest, or that
* src or dest specified the current working directory on the
* current filesystem. EACCES is returned for those cases.
*/
} else if (errno == EEXIST) {
/*
* Reports EEXIST any time the target already exists. If it makes
* sense, remove the old file and try renaming again.
*/
if (srcAttr & FILE_ATTRIBUTE_DIRECTORY) {
if (dstAttr & FILE_ATTRIBUTE_DIRECTORY) {
/*
* Overwrite empty dst directory with src directory. The
* following call will remove an empty directory. If it
* fails, it's because it wasn't empty.
*/
if (TclpRemoveDirectory(dst, 0, NULL) == TCL_OK) {
/*
* Now that that empty directory is gone, we can try
* renaming again. If that fails, we'll put this empty
* directory back, for completeness.
*/
if (MoveFile(src, dst) != FALSE) {
return TCL_OK;
}
/*
* Some new error has occurred. Don't know what it
* could be, but report this one.
*/
TclWinConvertError(GetLastError());
CreateDirectory(dst, NULL);
SetFileAttributes(dst, dstAttr);
if (errno == EACCES) {
/*
* Decode the EACCES to a more meaningful error.
*/
goto decode;
}
}
} else { /* (dstAttr & FILE_ATTRIBUTE_DIRECTORY) == 0 */
errno = ENOTDIR;
}
} else { /* (srcAttr & FILE_ATTRIBUTE_DIRECTORY) == 0 */
if (dstAttr & FILE_ATTRIBUTE_DIRECTORY) {
errno = EISDIR;
} else {
/*
* Overwrite existing file by:
*
* 1. Rename existing file to temp name.
* 2. Rename old file to new name.
* 3. If success, delete temp file. If failure,
* put temp file back to old name.
*/
char tempName[MAX_PATH];
int result, size;
char *rest;
size = GetFullPathName(dst, sizeof(tempName), tempName, &rest);
if ((size == 0) || (size > sizeof(tempName)) || (rest == NULL)) {
return TCL_ERROR;
}
*rest = '\0';
result = TCL_ERROR;
if (GetTempFileName(tempName, "tclr", 0, tempName) != 0) {
/*
* Strictly speaking, need the following DeleteFile and
* MoveFile to be joined as an atomic operation so no
* other app comes along in the meantime and creates the
* same temp file.
*/
DeleteFile(tempName);
if (MoveFile(dst, tempName) != FALSE) {
if (MoveFile(src, dst) != FALSE) {
SetFileAttributes(tempName, FILE_ATTRIBUTE_NORMAL);
DeleteFile(tempName);
return TCL_OK;
} else {
DeleteFile(dst);
MoveFile(tempName, dst);
}
}
/*
* Can't backup dst file or move src file. Return that
* error. Could happen if an open file refers to dst.
*/
TclWinConvertError(GetLastError());
if (errno == EACCES) {
/*
* Decode the EACCES to a more meaningful error.
*/
goto decode;
}
}
return result;
}
}
}
return TCL_ERROR;
}
static int
ConvertFileNameFormat(
Tcl_Interp *interp, /* The interp we are using for errors. */
int objIndex, /* The index of the attribute. */
char *fileName, /* The name of the file. */
int longShort, /* 0 to short name, 1 to long name. */
Tcl_Obj **attributePtrPtr) /* A pointer to return the object with. */
{
HANDLE findHandle;
WIN32_FIND_DATA findData;
int pathArgc, i;
char **pathArgv, **newPathArgv;
char *currentElement, *resultStr;
Tcl_DString resultDString;
int result = TCL_OK;
Tcl_SplitPath(fileName, &pathArgc, &pathArgv);
newPathArgv = (char **) ckalloc(pathArgc * sizeof(char *));
for (i = 0; i < pathArgc; i++) {
if (strcmp(pathArgv[i], ".") == 0) {
currentElement = ckalloc(strlen(".") + 1);
strcpy(currentElement, ".");
} else if (strcmp(pathArgv[i], "..") == 0) {
currentElement = ckalloc(strlen("..") + 1);
strcpy(currentElement, "..");
} else if ((i == 0) && (pathArgv[i][1] == ':')
&& (strlen(pathArgv[i]) == 3)) {
currentElement = ckalloc(4);
strcpy(currentElement, pathArgv[i]);
} else if ((i == 0) && (pathArgv[i][0] == '/')
&& (pathArgv[i][1] == '/')) {
currentElement = ckalloc(strlen(pathArgv[i]) + 1);
strcpy(currentElement, pathArgv[i]);
} else {
int useLong;
Tcl_DStringInit(&resultDString);
resultStr = Tcl_JoinPath(i + 1, pathArgv, &resultDString);
findHandle = FindFirstFile(resultStr, &findData);
if (findHandle == INVALID_HANDLE_VALUE) {
pathArgc = i - 1;
AttributesPosixError(interp, objIndex, fileName, 0);
result = TCL_ERROR;
Tcl_DStringFree(&resultDString);
goto cleanup;
}
if (longShort) {
if (findData.cFileName[0] != '\0') {
useLong = 1;
} else {
useLong = 0;
}
} else {
if (findData.cAlternateFileName[0] == '\0') {
useLong = 1;
} else {
useLong = 0;
}
}
if (useLong) {
currentElement = ckalloc(strlen(findData.cFileName) + 1);
strcpy(currentElement, findData.cFileName);
} else {
currentElement = ckalloc(strlen(findData.cAlternateFileName)
+ 1);
strcpy(currentElement, findData.cAlternateFileName);
}
Tcl_DStringFree(&resultDString);
FindClose(findHandle);
}
newPathArgv[i] = currentElement;
}
Tcl_DStringInit(&resultDString);
resultStr = Tcl_JoinPath(pathArgc, newPathArgv, &resultDString);
*attributePtrPtr = Tcl_NewStringObj(resultStr, Tcl_DStringLength(&resultDString));
Tcl_DStringFree(&resultDString);
cleanup:
for (i = 0; i < pathArgc; i++) {
ckfree(newPathArgv[i]);
}
ckfree((char *) newPathArgv);
return result;
}
static int
DoRenameFile(
CONST TCHAR *nativeSrc, /* Pathname of file or dir to be renamed
* (native). */
Tcl_DString *dstPtr) /* New pathname for file or directory
* (native). */
{
const TCHAR *nativeDst;
DWORD srcAttr, dstAttr;
nativeDst = (TCHAR *) Tcl_DStringValue(dstPtr);
/*
* Would throw an exception under NT if one of the arguments is a
* char block device.
*/
__try {
if ((*tclWinProcs->moveFileProc)(nativeSrc, nativeDst) != FALSE) {
return TCL_OK;
}
} __except (-1) {}
TclWinConvertError(GetLastError());
srcAttr = (*tclWinProcs->getFileAttributesProc)(nativeSrc);
dstAttr = (*tclWinProcs->getFileAttributesProc)(nativeDst);
if (srcAttr == 0xffffffff) {
if ((*tclWinProcs->getFullPathNameProc)(nativeSrc, 0, NULL, NULL) >= MAX_PATH) {
errno = ENAMETOOLONG;
return TCL_ERROR;
}
srcAttr = 0;
}
if (dstAttr == 0xffffffff) {
if ((*tclWinProcs->getFullPathNameProc)(nativeDst, 0, NULL, NULL) >= MAX_PATH) {
errno = ENAMETOOLONG;
return TCL_ERROR;
}
dstAttr = 0;
}
if (errno == EBADF) {
errno = EACCES;
return TCL_ERROR;
}
if ((TclWinGetPlatformId() == VER_PLATFORM_WIN32s) && (errno == EACCES)) {
if ((srcAttr != 0) && (dstAttr != 0)) {
/*
* Win32s reports trying to overwrite an existing file or directory
* as EACCES.
*/
errno = EEXIST;
}
}
if (errno == EACCES) {
decode:
if (srcAttr & FILE_ATTRIBUTE_DIRECTORY) {
TCHAR *nativeSrcRest, *nativeDstRest;
char **srcArgv, **dstArgv;
int size, srcArgc, dstArgc;
WCHAR nativeSrcPath[MAX_PATH];
WCHAR nativeDstPath[MAX_PATH];
Tcl_DString srcString, dstString;
CONST char *src, *dst;
size = (*tclWinProcs->getFullPathNameProc)(nativeSrc, MAX_PATH,
nativeSrcPath, &nativeSrcRest);
if ((size == 0) || (size > MAX_PATH)) {
return TCL_ERROR;
}
size = (*tclWinProcs->getFullPathNameProc)(nativeDst, MAX_PATH,
nativeDstPath, &nativeDstRest);
if ((size == 0) || (size > MAX_PATH)) {
return TCL_ERROR;
}
(*tclWinProcs->charLowerProc)((TCHAR *) nativeSrcPath);
(*tclWinProcs->charLowerProc)((TCHAR *) nativeDstPath);
src = Tcl_WinTCharToUtf((TCHAR *) nativeSrcPath, -1, &srcString);
dst = Tcl_WinTCharToUtf((TCHAR *) nativeDstPath, -1, &dstString);
if (strncmp(src, dst, Tcl_DStringLength(&srcString)) == 0) {
/*
* Trying to move a directory into itself.
*/
errno = EINVAL;
Tcl_DStringFree(&srcString);
Tcl_DStringFree(&dstString);
return TCL_ERROR;
}
Tcl_SplitPath(src, &srcArgc, &srcArgv);
Tcl_SplitPath(dst, &dstArgc, &dstArgv);
Tcl_DStringFree(&srcString);
Tcl_DStringFree(&dstString);
if (srcArgc == 1) {
/*
* They are trying to move a root directory. Whether
* or not it is across filesystems, this cannot be
* done.
*/
Tcl_SetErrno(EINVAL);
} else if ((srcArgc > 0) && (dstArgc > 0) &&
(strcmp(srcArgv[0], dstArgv[0]) != 0)) {
/*
* If src is a directory and dst filesystem != src
* filesystem, errno should be EXDEV. It is very
* important to get this behavior, so that the caller
* can respond to a cross filesystem rename by
* simulating it with copy and delete. The MoveFile
* system call already handles the case of moving a
* file between filesystems.
*/
Tcl_SetErrno(EXDEV);
}
ckfree((char *) srcArgv);
ckfree((char *) dstArgv);
}
/*
* Other types of access failure is that dst is a read-only
* filesystem, that an open file referred to src or dest, or that
* src or dest specified the current working directory on the
* current filesystem. EACCES is returned for those cases.
*/
} else if (Tcl_GetErrno() == EEXIST) {
/*
* Reports EEXIST any time the target already exists. If it makes
* sense, remove the old file and try renaming again.
*/
if (srcAttr & FILE_ATTRIBUTE_DIRECTORY) {
if (dstAttr & FILE_ATTRIBUTE_DIRECTORY) {
/*
* Overwrite empty dst directory with src directory. The
* following call will remove an empty directory. If it
* fails, it's because it wasn't empty.
*/
if (DoRemoveDirectory(dstPtr, 0, NULL) == TCL_OK) {
/*
* Now that that empty directory is gone, we can try
* renaming again. If that fails, we'll put this empty
* directory back, for completeness.
*/
if ((*tclWinProcs->moveFileProc)(nativeSrc, nativeDst) != FALSE) {
return TCL_OK;
}
/*
* Some new error has occurred. Don't know what it
* could be, but report this one.
*/
TclWinConvertError(GetLastError());
(*tclWinProcs->createDirectoryProc)(nativeDst, NULL);
(*tclWinProcs->setFileAttributesProc)(nativeDst, dstAttr);
if (Tcl_GetErrno() == EACCES) {
/*
* Decode the EACCES to a more meaningful error.
*/
goto decode;
}
}
} else { /* (dstAttr & FILE_ATTRIBUTE_DIRECTORY) == 0 */
Tcl_SetErrno(ENOTDIR);
}
} else { /* (srcAttr & FILE_ATTRIBUTE_DIRECTORY) == 0 */
if (dstAttr & FILE_ATTRIBUTE_DIRECTORY) {
Tcl_SetErrno(EISDIR);
} else {
/*
* Overwrite existing file by:
*
* 1. Rename existing file to temp name.
* 2. Rename old file to new name.
* 3. If success, delete temp file. If failure,
* put temp file back to old name.
*/
TCHAR *nativeRest, *nativeTmp, *nativePrefix;
int result, size;
WCHAR tempBuf[MAX_PATH];
size = (*tclWinProcs->getFullPathNameProc)(nativeDst, MAX_PATH,
tempBuf, &nativeRest);
if ((size == 0) || (size > MAX_PATH) || (nativeRest == NULL)) {
return TCL_ERROR;
}
nativeTmp = (TCHAR *) tempBuf;
((char *) nativeRest)[0] = '\0';
((char *) nativeRest)[1] = '\0'; /* In case it's Unicode. */
result = TCL_ERROR;
nativePrefix = (tclWinProcs->useWide)
? (TCHAR *) L"tclr" : (TCHAR *) "tclr";
if ((*tclWinProcs->getTempFileNameProc)(nativeTmp,
nativePrefix, 0, tempBuf) != 0) {
/*
* Strictly speaking, need the following DeleteFile and
* MoveFile to be joined as an atomic operation so no
* other app comes along in the meantime and creates the
* same temp file.
*/
nativeTmp = (TCHAR *) tempBuf;
(*tclWinProcs->deleteFileProc)(nativeTmp);
if ((*tclWinProcs->moveFileProc)(nativeDst, nativeTmp) != FALSE) {
if ((*tclWinProcs->moveFileProc)(nativeSrc, nativeDst) != FALSE) {
(*tclWinProcs->setFileAttributesProc)(nativeTmp,
FILE_ATTRIBUTE_NORMAL);
(*tclWinProcs->deleteFileProc)(nativeTmp);
return TCL_OK;
} else {
(*tclWinProcs->deleteFileProc)(nativeDst);
(*tclWinProcs->moveFileProc)(nativeTmp, nativeDst);
}
}
/*
* Can't backup dst file or move src file. Return that
* error. Could happen if an open file refers to dst.
*/
TclWinConvertError(GetLastError());
if (Tcl_GetErrno() == EACCES) {
/*
* Decode the EACCES to a more meaningful error.
*/
goto decode;
}
}
return result;
}
}
}
return TCL_ERROR;
}
static int
ConvertFileNameFormat(
Tcl_Interp *interp, /* The interp we are using for errors. */
int objIndex, /* The index of the attribute. */
CONST char *fileName, /* The name of the file. */
int longShort, /* 0 to short name, 1 to long name. */
Tcl_Obj **attributePtrPtr) /* A pointer to return the object with. */
{
int pathc, i;
char **pathv, **newv;
char *resultStr;
Tcl_DString resultDString;
int result = TCL_OK;
Tcl_SplitPath(fileName, &pathc, &pathv);
newv = (char **) ckalloc(pathc * sizeof(char *));
if (pathc == 0) {
Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
"could not read \"", fileName,
"\": no such file or directory",
(char *) NULL);
result = TCL_ERROR;
goto cleanup;
}
for (i = 0; i < pathc; i++) {
if ((pathv[i][0] == '/')
|| ((strlen(pathv[i]) == 3) && (pathv[i][1] == ':'))
|| (strcmp(pathv[i], ".") == 0)
|| (strcmp(pathv[i], "..") == 0)) {
/*
* Handle "/", "//machine/export", "c:/", "." or ".." by just
* copying the string literally. Uppercase the drive letter,
* just because it looks better under Windows to do so.
*/
simple:
pathv[i][0] = (char) Tcl_UniCharToUpper(UCHAR(pathv[i][0]));
newv[i] = (char *) ckalloc(strlen(pathv[i]) + 1);
lstrcpyA(newv[i], pathv[i]);
} else {
char *str;
TCHAR *nativeName;
Tcl_DString ds;
WIN32_FIND_DATAT data;
HANDLE handle;
DWORD attr;
Tcl_DStringInit(&resultDString);
str = Tcl_JoinPath(i + 1, pathv, &resultDString);
nativeName = Tcl_WinUtfToTChar(str, -1, &ds);
handle = (*tclWinProcs->findFirstFileProc)(nativeName, &data);
if (handle == INVALID_HANDLE_VALUE) {
/*
* FindFirstFile() doesn't like root directories. We
* would only get a root directory here if the caller
* specified "c:" or "c:." and the current directory on the
* drive was the root directory
*/
attr = (*tclWinProcs->getFileAttributesProc)(nativeName);
if ((attr != 0xFFFFFFFF) && (attr & FILE_ATTRIBUTE_DIRECTORY)) {
Tcl_DStringFree(&ds);
Tcl_DStringFree(&resultDString);
goto simple;
}
}
Tcl_DStringFree(&ds);
Tcl_DStringFree(&resultDString);
if (handle == INVALID_HANDLE_VALUE) {
pathc = i - 1;
StatError(interp, fileName);
result = TCL_ERROR;
goto cleanup;
}
if (tclWinProcs->useWide) {
nativeName = (TCHAR *) data.w.cAlternateFileName;
if (longShort) {
if (data.w.cFileName[0] != '\0') {
nativeName = (TCHAR *) data.w.cFileName;
}
} else {
if (data.w.cAlternateFileName[0] == '\0') {
nativeName = (TCHAR *) data.w.cFileName;
}
}
} else {
nativeName = (TCHAR *) data.a.cAlternateFileName;
if (longShort) {
if (data.a.cFileName[0] != '\0') {
nativeName = (TCHAR *) data.a.cFileName;
}
} else {
if (data.a.cAlternateFileName[0] == '\0') {
nativeName = (TCHAR *) data.a.cFileName;
}
}
}
/*
* Purify reports a extraneous UMR in Tcl_WinTCharToUtf() trying
* to dereference nativeName as a Unicode string. I have proven
* to myself that purify is wrong by running the following
* example when nativeName == data.w.cAlternateFileName and
* noting that purify doesn't complain about the first line,
* but does complain about the second.
*
* fprintf(stderr, "%d\n", data.w.cAlternateFileName[0]);
* fprintf(stderr, "%d\n", ((WCHAR *) nativeName)[0]);
*/
Tcl_WinTCharToUtf(nativeName, -1, &ds);
newv[i] = ckalloc(Tcl_DStringLength(&ds) + 1);
lstrcpyA(newv[i], Tcl_DStringValue(&ds));
Tcl_DStringFree(&ds);
FindClose(handle);
}
}
Tcl_DStringInit(&resultDString);
resultStr = Tcl_JoinPath(pathc, newv, &resultDString);
*attributePtrPtr = Tcl_NewStringObj(resultStr,
Tcl_DStringLength(&resultDString));
Tcl_DStringFree(&resultDString);
cleanup:
for (i = 0; i < pathc; i++) {
ckfree(newv[i]);
}
ckfree((char *) newv);
ckfree((char *) pathv);
return result;
}
