tclwinfcmd.c

这是leon3处理器的交叉编译链

				 * causing error. */
{
    /*
     * The RemoveDirectory API acts differently under Win95/98 and NT
     * WRT NULL and "". Avoid passing these values.
     */

    if (nativePath == NULL || nativePath[0] == '\0') {
	Tcl_SetErrno(ENOENT);
	goto end;
    }

    if ((*tclWinProcs->removeDirectoryProc)(nativePath) != FALSE) {
	return TCL_OK;
    }
    TclWinConvertError(GetLastError());

    if (Tcl_GetErrno() == EACCES) {
	DWORD attr = (*tclWinProcs->getFileAttributesProc)(nativePath);
	if (attr != 0xffffffff) {
	    if ((attr & FILE_ATTRIBUTE_DIRECTORY) == 0) {
		/* 
		 * Windows 95 reports calling RemoveDirectory on a file as an 
		 * EACCES, not an ENOTDIR.
		 */
		
		Tcl_SetErrno(ENOTDIR);
		goto end;
	    }

	    if (attr & FILE_ATTRIBUTE_REPARSE_POINT) {
		/* It is a symbolic link -- remove it */
		if (TclWinSymLinkDelete(nativePath, 1) != 0) {
		    goto end;
		}
	    }
	    
	    if (attr & FILE_ATTRIBUTE_READONLY) {
		attr &= ~FILE_ATTRIBUTE_READONLY;
		if ((*tclWinProcs->setFileAttributesProc)(nativePath, attr) == FALSE) {
		    goto end;
		}
		if ((*tclWinProcs->removeDirectoryProc)(nativePath) != FALSE) {
		    return TCL_OK;
		}
		TclWinConvertError(GetLastError());
		(*tclWinProcs->setFileAttributesProc)(nativePath, 
			attr | FILE_ATTRIBUTE_READONLY);
	    }

	    /* 
	     * Windows 95 and Win32s report removing a non-empty directory 
	     * as EACCES, not EEXIST.  If the directory is not empty,
	     * change errno so caller knows what's going on.
	     */

	    if (TclWinGetPlatformId() != VER_PLATFORM_WIN32_NT) {
		CONST char *path, *find;
		HANDLE handle;
		WIN32_FIND_DATAA data;
		Tcl_DString buffer;
		int len;

		path = (CONST char *) nativePath;

		Tcl_DStringInit(&buffer);
		len = strlen(path);
		find = Tcl_DStringAppend(&buffer, path, len);
		if ((len > 0) && (find[len - 1] != '\\')) {
		    Tcl_DStringAppend(&buffer, "\\", 1);
		}
		find = Tcl_DStringAppend(&buffer, "*.*", 3);
		handle = FindFirstFileA(find, &data);
		if (handle != INVALID_HANDLE_VALUE) {
		    while (1) {
			if ((strcmp(data.cFileName, ".") != 0)
				&& (strcmp(data.cFileName, "..") != 0)) {
			    /*
			     * Found something in this directory.
			     */

			    Tcl_SetErrno(EEXIST);
			    break;
			}
			if (FindNextFileA(handle, &data) == FALSE) {
			    break;
			}
		    }
		    FindClose(handle);
		}
		Tcl_DStringFree(&buffer);
	    }
	}
    }
    if (Tcl_GetErrno() == ENOTEMPTY) {
	/* 
	 * The caller depends on EEXIST to signify that the directory is
	 * not empty, not ENOTEMPTY. 
	 */

	Tcl_SetErrno(EEXIST);
    }
    if ((ignoreError != 0) && (Tcl_GetErrno() == EEXIST)) {
	/* 
	 * If we're being recursive, this error may actually
	 * be ok, so we don't want to initialise the errorPtr
	 * yet.
	 */
	return TCL_ERROR;
    }

    end:
    if (errorPtr != NULL) {
	Tcl_WinTCharToUtf(nativePath, -1, errorPtr);
    }
    return TCL_ERROR;

}

static int
DoRemoveDirectory(
    Tcl_DString *pathPtr,	/* Pathname of directory to be removed
				 * (native). */
    int recursive,		/* If non-zero, removes directories that
				 * are nonempty.  Otherwise, will only remove
				 * empty directories. */
    Tcl_DString *errorPtr)	/* If non-NULL, uninitialized or free
				 * DString filled with UTF-8 name of file
				 * causing error. */
{
    int res = DoRemoveJustDirectory(Tcl_DStringValue(pathPtr), recursive, 
				    errorPtr);
    
    if ((res == TCL_ERROR) && (recursive != 0) && (Tcl_GetErrno() == EEXIST)) {
	/*
	 * The directory is nonempty, but the recursive flag has been
	 * specified, so we recursively remove all the files in the directory.
	 */
	return TraverseWinTree(TraversalDelete, pathPtr, NULL, errorPtr);
    } else {
	return res;
    }
}

/*
 *---------------------------------------------------------------------------
 *
 * TraverseWinTree --
 *
 *      Traverse directory tree specified by sourcePtr, calling the function 
 *	traverseProc for each file and directory encountered.  If destPtr 
 *	is non-null, each of name in the sourcePtr directory is appended to 
 *	the directory specified by destPtr and passed as the second argument 
 *	to traverseProc() .
 *
 * Results:
 *      Standard Tcl result.
 *
 * Side effects:
 *      None caused by TraverseWinTree, however the user specified 
 *	traverseProc() may change state.  If an error occurs, the error will
 *      be returned immediately, and remaining files will not be processed.
 *
 *---------------------------------------------------------------------------
 */

static int 
TraverseWinTree(
    TraversalProc *traverseProc,/* Function to call for every file and
				 * directory in source hierarchy. */
    Tcl_DString *sourcePtr,	/* Pathname of source directory to be
				 * traversed (native). */
    Tcl_DString *targetPtr,	/* Pathname of directory to traverse in
				 * parallel with source directory (native),
				 * may be NULL. */
    Tcl_DString *errorPtr)	/* If non-NULL, uninitialized or free
				 * DString filled with UTF-8 name of file
				 * causing error. */
{
    DWORD sourceAttr;
    TCHAR *nativeSource, *nativeTarget, *nativeErrfile;
    int result, found, sourceLen, targetLen, oldSourceLen, oldTargetLen;
    HANDLE handle;
    WIN32_FIND_DATAT data;

    nativeErrfile = NULL;
    result = TCL_OK;
    oldTargetLen = 0;		/* lint. */

    nativeSource = (TCHAR *) Tcl_DStringValue(sourcePtr);
    nativeTarget = (TCHAR *) (targetPtr == NULL ? NULL : Tcl_DStringValue(targetPtr));
    
    oldSourceLen = Tcl_DStringLength(sourcePtr);
    sourceAttr = (*tclWinProcs->getFileAttributesProc)(nativeSource);
    if (sourceAttr == 0xffffffff) {
	nativeErrfile = nativeSource;
	goto end;
    }
    if ((sourceAttr & FILE_ATTRIBUTE_DIRECTORY) == 0) {
	/*
	 * Process the regular file
	 */

	return (*traverseProc)(nativeSource, nativeTarget, DOTREE_F, errorPtr);
    }

    if (tclWinProcs->useWide) {
	Tcl_DStringAppend(sourcePtr, (char *) L"\\*.*", 4 * sizeof(WCHAR) + 1);
	Tcl_DStringSetLength(sourcePtr, Tcl_DStringLength(sourcePtr) - 1);
    } else {
	Tcl_DStringAppend(sourcePtr, "\\*.*", 4);
    }
    nativeSource = (TCHAR *) Tcl_DStringValue(sourcePtr);
    handle = (*tclWinProcs->findFirstFileProc)(nativeSource, &data);
    if (handle == INVALID_HANDLE_VALUE) {      
	/* 
	 * Can't read directory
	 */

	TclWinConvertError(GetLastError());
	nativeErrfile = nativeSource;
	goto end;
    }

    nativeSource[oldSourceLen + 1] = '\0';
    Tcl_DStringSetLength(sourcePtr, oldSourceLen);
    result = (*traverseProc)(nativeSource, nativeTarget, DOTREE_PRED, errorPtr);
    if (result != TCL_OK) {
	FindClose(handle);
	return result;
    }

    sourceLen = oldSourceLen;

    if (tclWinProcs->useWide) {
	sourceLen += sizeof(WCHAR);
	Tcl_DStringAppend(sourcePtr, (char *) L"\\", sizeof(WCHAR) + 1);
	Tcl_DStringSetLength(sourcePtr, sourceLen);
    } else {
	sourceLen += 1;
	Tcl_DStringAppend(sourcePtr, "\\", 1);
    }
    if (targetPtr != NULL) {
	oldTargetLen = Tcl_DStringLength(targetPtr);

	targetLen = oldTargetLen;
	if (tclWinProcs->useWide) {
	    targetLen += sizeof(WCHAR);
	    Tcl_DStringAppend(targetPtr, (char *) L"\\", sizeof(WCHAR) + 1);
	    Tcl_DStringSetLength(targetPtr, targetLen);
	} else {
	    targetLen += 1;
	    Tcl_DStringAppend(targetPtr, "\\", 1);
	}
    }

    found = 1;
    for ( ; found; found = (*tclWinProcs->findNextFileProc)(handle, &data)) {
	TCHAR *nativeName;
	int len;

	if (tclWinProcs->useWide) {
	    WCHAR *wp;

	    wp = data.w.cFileName;
	    if (*wp == '.') {
		wp++;
		if (*wp == '.') {
		    wp++;
		}
		if (*wp == '\0') {
		    continue;
		}
	    }
	    nativeName = (TCHAR *) data.w.cFileName;
	    len = Tcl_UniCharLen(data.w.cFileName) * sizeof(WCHAR);
	} else {
	    if ((strcmp(data.a.cFileName, ".") == 0) 
		    || (strcmp(data.a.cFileName, "..") == 0)) {
		continue;
	    }
	    nativeName = (TCHAR *) data.a.cFileName;
	    len = strlen(data.a.cFileName);
	}

	/* 
	 * Append name after slash, and recurse on the file. 
	 */

	Tcl_DStringAppend(sourcePtr, (char *) nativeName, len + 1);
	Tcl_DStringSetLength(sourcePtr, Tcl_DStringLength(sourcePtr) - 1);
	if (targetPtr != NULL) {
	    Tcl_DStringAppend(targetPtr, (char *) nativeName, len + 1);
	    Tcl_DStringSetLength(targetPtr, Tcl_DStringLength(targetPtr) - 1);
	}
	result = TraverseWinTree(traverseProc, sourcePtr, targetPtr, 
		errorPtr);
	if (result != TCL_OK) {
	    break;
	}

	/*
	 * Remove name after slash.
	 */

	Tcl_DStringSetLength(sourcePtr, sourceLen);
	if (targetPtr != NULL) {
	    Tcl_DStringSetLength(targetPtr, targetLen);
	}
    }
    FindClose(handle);

    /*
     * Strip off the trailing slash we added
     */

    Tcl_DStringSetLength(sourcePtr, oldSourceLen + 1);
    Tcl_DStringSetLength(sourcePtr, oldSourceLen);
    if (targetPtr != NULL) {
	Tcl_DStringSetLength(targetPtr, oldTargetLen + 1);
	Tcl_DStringSetLength(targetPtr, oldTargetLen);
    }
    if (result == TCL_OK) {
	/*
	 * Call traverseProc() on a directory after visiting all the
	 * files in that directory.
	 */

	result = (*traverseProc)(Tcl_DStringValue(sourcePtr), 
			(targetPtr == NULL ? NULL : Tcl_DStringValue(targetPtr)), 
			DOTREE_POSTD, errorPtr);
    }
    end:
    if (nativeErrfile != NULL) {
	TclWinConvertError(GetLastError());
	if (errorPtr != NULL) {
	    Tcl_WinTCharToUtf(nativeErrfile, -1, errorPtr);
	}
	result = TCL_ERROR;
    }
	    
    return result;
}

/*
 *----------------------------------------------------------------------
 *
 * TraversalCopy
 *
 *      Called from TraverseUnixTree in order to execute a recursive
 *      copy of a directory.
 *
 * Results:
 *      Standard Tcl result.
 *
 * Side effects:
 *      Depending on the value of type, src may be copied to dst.
 *      
 *----------------------------------------------------------------------
 */

static int 
TraversalCopy(
    CONST TCHAR *nativeSrc,	/* Source pathname to copy. */
    CONST TCHAR *nativeDst,	/* Destination pathname of copy. */
    int type,			/* Reason for call - see TraverseWinTree() */
    Tcl_DString *errorPtr)	/* If non-NULL, initialized DString filled
				 * with UTF-8 name of file causing error. */
{
    switch (type) {
	case DOTREE_F: {
	    if (DoCopyFile(nativeSrc, nativeDst) == TCL_OK) {
		return TCL_OK;
	    }
	    break;
	}
	case DOTREE_PRED: {
	    if (DoCreateDirectory(nativeDst) == TCL_OK) {
		DWORD attr = (*tclWinProcs->getFileAttributesProc)(nativeSrc);
		if ((*tclWinProcs->setFileAttributesProc)(nativeDst, attr) != FALSE) {
		    return TCL_OK;
		}
		TclWinConvertError(GetLastError());
	    }
	    break;
	}
        case DOTREE_POSTD: {
	    return TCL_OK;
	}
    }

    /*
     * There shouldn't be a problem with src, because we already
     * checked it to get here.
     */

    if (errorPtr != NULL) {
	Tcl_WinTCharToUtf(nativeDst, -1, errorPtr);
    }
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *
 * TraversalDelete --
 *
 *      Called by procedure TraverseWinTree for every file and
 *      directory that it encounters in a directory hierarchy. This
 *      procedure unlinks files, and removes directories after all the
 *      containing files have been processed.
 *
 * Results:
 *      Standard Tcl result.
 *
 * Side effects:
 *      Files or directory specified by src will be deleted. If an
 *      error occurs, the windows error is converted to a Posix error
 *      and errno is set accordingly.
 *
 *----------------------------------------------------------------------
 */

static int
TraversalDelete( 
    CONST TCHAR *nativeSrc,	/* Source pathname to delete. */
    CONST TCHAR *dstPtr,	/* Not used. */
    int type,			/* Reason for call - see TraverseWinTree() */
    Tcl_DString *errorPtr)	/* If non-NULL, initialized DString filled
				 * with UTF-8 name of file causing error. */
{
    switch (type) {
	case DOTREE_F: {
	    if (TclpDeleteFile(nativeSrc) == TCL_OK) {
		return TCL_OK;
	    }
	    break;
	}
	case DOTREE_PRED: {
	    return TCL_OK;
	}
	case DOTREE_POSTD: {
	    if (DoRemoveJustDirectory(nativeSrc, 0, NULL) == TCL_OK) {
		return TCL_OK;
	    }
	    break;
	}
    }

    if (errorPtr != NULL) {
	Tcl_WinTCharToUtf(nativeSrc, -1, errorPtr);
    }
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *
 * StatError --
 *
 *	Sets the object result with the appropriate error.
 *
 * Results:
 *      None.
 *
 * Side effects:
 *      The interp's object result is set with an error message
 *	based on the objIndex, fileName and errno.
 *
 *----------------------------------------------------------------------
 */

static void
StatError(