/* $Header$ */ /* * tclWinFCmd.c * * This file implements the Windows specific portion of file manipulation * subcommands of the "file" command. * * Copyright (c) 1996-1998 Sun Microsystems, Inc. * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * * RCS: @(#) $Id: tclwinfcmd.c,v 1.1.1.1 2001/06/13 04:49:02 dtashley Exp $ */ #include "tclWinInt.h" /* * The following constants specify the type of callback when * TraverseWinTree() calls the traverseProc() */ #define DOTREE_PRED 1 /* pre-order directory */ #define DOTREE_POSTD 2 /* post-order directory */ #define DOTREE_F 3 /* regular file */ /* * Callbacks for file attributes code. */ static int GetWinFileAttributes _ANSI_ARGS_((Tcl_Interp *interp, int objIndex, CONST char *fileName, Tcl_Obj **attributePtrPtr)); static int GetWinFileLongName _ANSI_ARGS_((Tcl_Interp *interp, int objIndex, CONST char *fileName, Tcl_Obj **attributePtrPtr)); static int GetWinFileShortName _ANSI_ARGS_((Tcl_Interp *interp, int objIndex, CONST char *fileName, Tcl_Obj **attributePtrPtr)); static int SetWinFileAttributes _ANSI_ARGS_((Tcl_Interp *interp, int objIndex, CONST char *fileName, Tcl_Obj *attributePtr)); static int CannotSetAttribute _ANSI_ARGS_((Tcl_Interp *interp, int objIndex, CONST char *fileName, Tcl_Obj *attributePtr)); /* * Constants and variables necessary for file attributes subcommand. */ enum { WIN_ARCHIVE_ATTRIBUTE, WIN_HIDDEN_ATTRIBUTE, WIN_LONGNAME_ATTRIBUTE, WIN_READONLY_ATTRIBUTE, WIN_SHORTNAME_ATTRIBUTE, WIN_SYSTEM_ATTRIBUTE }; static int attributeArray[] = {FILE_ATTRIBUTE_ARCHIVE, FILE_ATTRIBUTE_HIDDEN, 0, FILE_ATTRIBUTE_READONLY, 0, FILE_ATTRIBUTE_SYSTEM}; char *tclpFileAttrStrings[] = { "-archive", "-hidden", "-longname", "-readonly", "-shortname", "-system", (char *) NULL }; const TclFileAttrProcs tclpFileAttrProcs[] = { {GetWinFileAttributes, SetWinFileAttributes}, {GetWinFileAttributes, SetWinFileAttributes}, {GetWinFileLongName, CannotSetAttribute}, {GetWinFileAttributes, SetWinFileAttributes}, {GetWinFileShortName, CannotSetAttribute}, {GetWinFileAttributes, SetWinFileAttributes}}; /* * Prototype for the TraverseWinTree callback function. */ typedef int (TraversalProc)(Tcl_DString *srcPtr, Tcl_DString *dstPtr, int type, Tcl_DString *errorPtr); /* * Declarations for local procedures defined in this file: */ static void StatError(Tcl_Interp *interp, CONST char *fileName); static int ConvertFileNameFormat(Tcl_Interp *interp, int objIndex, CONST char *fileName, int longShort, Tcl_Obj **attributePtrPtr); static int DoCopyFile(Tcl_DString *srcPtr, Tcl_DString *dstPtr); static int DoCreateDirectory(Tcl_DString *pathPtr); static int DoDeleteFile(Tcl_DString *pathPtr); static int DoRemoveDirectory(Tcl_DString *pathPtr, int recursive, Tcl_DString *errorPtr); static int DoRenameFile(const TCHAR *nativeSrc, Tcl_DString *dstPtr); static int TraversalCopy(Tcl_DString *srcPtr, Tcl_DString *dstPtr, int type, Tcl_DString *errorPtr); static int TraversalDelete(Tcl_DString *srcPtr, Tcl_DString *dstPtr, int type, Tcl_DString *errorPtr); static int TraverseWinTree(TraversalProc *traverseProc, Tcl_DString *sourcePtr, Tcl_DString *dstPtr, Tcl_DString *errorPtr); /* *--------------------------------------------------------------------------- * * TclpRenameFile, DoRenameFile -- * * Changes the name of an existing file or directory, from src to dst. * If src and dst refer to the same file or directory, does nothing * and returns success. Otherwise if dst already exists, it will be * deleted and replaced by src subject to the following conditions: * If src is a directory, dst may be an empty directory. * If src is a file, dst may be a file. * In any other situation where dst already exists, the rename will * fail. * * Results: * If the file or directory was successfully renamed, returns TCL_OK. * Otherwise the return value is TCL_ERROR and errno is set to * indicate the error. Some possible values for errno are: * * ENAMETOOLONG: src or dst names are too long. * EACCES: src or dst parent directory can't be read and/or written. * EEXIST: dst is a non-empty directory. * EINVAL: src is a root directory or dst is a subdirectory of src. * EISDIR: dst is a directory, but src is not. * ENOENT: src doesn't exist. src or dst is "". * ENOTDIR: src is a directory, but dst is not. * EXDEV: src and dst are on different filesystems. * * EACCES: exists an open file already referring to src or dst. * EACCES: src or dst specify the current working directory (NT). * EACCES: src specifies a char device (nul:, com1:, etc.) * EEXIST: dst specifies a char device (nul:, com1:, etc.) (NT) * EACCES: dst specifies a char device (nul:, com1:, etc.) (95) * * Side effects: * The implementation supports cross-filesystem renames of files, * but the caller should be prepared to emulate cross-filesystem * renames of directories if errno is EXDEV. * *--------------------------------------------------------------------------- */ int TclpRenameFile( CONST char *src, /* Pathname of file or dir to be renamed * (UTF-8). */ CONST char *dst) /* New pathname of file or directory * (UTF-8). */ { int result; TCHAR *nativeSrc; Tcl_DString srcString, dstString; nativeSrc = Tcl_WinUtfToTChar(src, -1, &srcString); Tcl_WinUtfToTChar(dst, -1, &dstString); result = DoRenameFile(nativeSrc, &dstString); Tcl_DStringFree(&srcString); Tcl_DStringFree(&dstString); 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 (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; } /* *--------------------------------------------------------------------------- * * TclpCopyFile, DoCopyFile -- * * Copy a single file (not a directory). If dst already exists and * is not a directory, it is removed. * * Results: * If the file was successfully copied, returns TCL_OK. Otherwise * the return value is TCL_ERROR and errno is set to indicate the * error. Some possible values for errno are: * * EACCES: src or dst parent directory can't be read and/or written. * EISDIR: src or dst is a directory. * ENOENT: src doesn't exist. src or dst is "". * * EACCES: exists an open file already referring to dst (95). * EACCES: src specifies a char device (nul:, com1:, etc.) (NT) * ENOENT: src specifies a char device (nul:, com1:, etc.) (95) * * Side effects: * It is not an error to copy to a char device. * *--------------------------------------------------------------------------- */ int TclpCopyFile( CONST char *src, /* Pathname of file to be copied (UTF-8). */ CONST char *dst) /* Pathname of file to copy to (UTF-8). */ { int result; Tcl_DString srcString, dstString; Tcl_WinUtfToTChar(src, -1, &srcString); Tcl_WinUtfToTChar(dst, -1, &dstString); result = DoCopyFile(&srcString, &dstString); Tcl_DStringFree(&srcString); Tcl_DStringFree(&dstString); return result; } static int DoCopyFile( Tcl_DString *srcPtr, /* Pathname of file to be copied (native). */ Tcl_DString *dstPtr) /* Pathname of file to copy to (native). */ { CONST TCHAR *nativeSrc, *nativeDst; nativeSrc = (TCHAR *) Tcl_DStringValue(srcPtr); nativeDst = (TCHAR *) Tcl_DStringValue(dstPtr); /* * Would throw an exception under NT if one of the arguments is a char * block device. */ __try { if ((*tclWinProcs->copyFileProc)(nativeSrc, nativeDst, 0) != FALSE) { return TCL_OK; } } __except (-1) {} TclWinConvertError(GetLastError()); if (Tcl_GetErrno() == EBADF) { Tcl_SetErrno(EACCES); return TCL_ERROR; } if (Tcl_GetErrno() == EACCES) { DWORD srcAttr, dstAttr; srcAttr = (*tclWinProcs->getFileAttributesProc)(nativeSrc); dstAttr = (*tclWinProcs->getFileAttributesProc)(nativeDst); if (srcAttr != 0xffffffff) { if (dstAttr == 0xffffffff) { dstAttr = 0; } if ((srcAttr & FILE_ATTRIBUTE_DIRECTORY) || (dstAttr & FILE_ATTRIBUTE_DIRECTORY)) { Tcl_SetErrno(EISDIR); } if (dstAttr & FILE_ATTRIBUTE_READONLY) { (*tclWinProcs->setFileAttributesProc)(nativeDst, dstAttr & ~FILE_ATTRIBUTE_READONLY); if ((*tclWinProcs->copyFileProc)(nativeSrc, nativeDst, 0) != FALSE) { return TCL_OK; } /* * Still can't copy onto dst. Return that error, and * restore attributes of dst. */ TclWinConvertError(GetLastError()); (*tclWinProcs->setFileAttributesProc)(nativeDst, dstAttr); } } } return TCL_ERROR; } /* *--------------------------------------------------------------------------- * * TclpDeleteFile, DoDeleteFile -- * * Removes a single file (not a directory). * * Results: * If the file was successfully deleted, returns TCL_OK. Otherwise * the return value is TCL_ERROR and errno is set to indicate the * error. Some possible values for errno are: * * EACCES: a parent directory can't be read and/or written. * EISDIR: path is a directory. * ENOENT: path doesn't exist or is "". * * EACCES: exists an open file already referring to path. * EACCES: path is a char device (nul:, com1:, etc.) * * Side effects: * The file is deleted, even if it is read-only. * *--------------------------------------------------------------------------- */ int TclpDeleteFile( CONST char *path) /* Pathname of file to be removed (UTF-8). */ { int result; Tcl_DString pathString; Tcl_WinUtfToTChar(path, -1, &pathString); result = DoDeleteFile(&pathString); Tcl_DStringFree(&pathString); return result; } static int DoDeleteFile( Tcl_DString *pathPtr) /* Pathname of file to be removed (native). */ { DWORD attr; CONST TCHAR *nativePath; nativePath = (TCHAR *) Tcl_DStringValue(pathPtr); if ((*tclWinProcs->deleteFileProc)(nativePath) != FALSE) { return TCL_OK; } TclWinConvertError(GetLastError()); /* * Win32s thinks that "" is the same as "." and then reports EISDIR * instead of ENOENT. */ if (tclWinProcs->useWide) { if (((WCHAR *) nativePath)[0] == '\0') { Tcl_SetErrno(ENOENT); return TCL_ERROR; } } else { if (((char *) nativePath)[0] == '\0') { Tcl_SetErrno(ENOENT); return TCL_ERROR; } } if (Tcl_GetErrno() == EACCES) { attr = (*tclWinProcs->getFileAttributesProc)(nativePath); if (attr != 0xffffffff) { if (attr & FILE_ATTRIBUTE_DIRECTORY) { /* * Windows NT reports removing a directory as EACCES instead * of EISDIR. */ Tcl_SetErrno(EISDIR); } else if (attr & FILE_ATTRIBUTE_READONLY) { (*tclWinProcs->setFileAttributesProc)(nativePath, attr & ~FILE_ATTRIBUTE_READONLY); if ((*tclWinProcs->deleteFileProc)(nativePath) != FALSE) { return TCL_OK; } TclWinConvertError(GetLastError()); (*tclWinProcs->setFileAttributesProc)(nativePath, attr); } } } else if (Tcl_GetErrno() == ENOENT) { attr = (*tclWinProcs->getFileAttributesProc)(nativePath); if (attr != 0xffffffff) { if (attr & FILE_ATTRIBUTE_DIRECTORY) { /* * Windows 95 reports removing a directory as ENOENT instead * of EISDIR. */ Tcl_SetErrno(EISDIR); } } } else if (Tcl_GetErrno() == EINVAL) { /* * Windows NT reports removing a char device as EINVAL instead of * EACCES. */ Tcl_SetErrno(EACCES); } return TCL_ERROR; } /* *--------------------------------------------------------------------------- * * TclpCreateDirectory -- * * Creates the specified directory. All parent directories of the * specified directory must already exist. The directory is * automatically created with permissions so that user can access * the new directory and create new files or subdirectories in it. * * Results: * If the directory was successfully created, returns TCL_OK. * Otherwise the return value is TCL_ERROR and errno is set to * indicate the error. Some possible values for errno are: * * EACCES: a parent directory can't be read and/or written. * EEXIST: path already exists. * ENOENT: a parent directory doesn't exist. * * Side effects: * A directory is created. * *--------------------------------------------------------------------------- */ int TclpCreateDirectory( CONST char *path) /* Pathname of directory to create (UTF-8). */ { int result; Tcl_DString pathString; Tcl_WinUtfToTChar(path, -1, &pathString); result = DoCreateDirectory(&pathString); Tcl_DStringFree(&pathString); return result; } static int DoCreateDirectory( Tcl_DString *pathPtr) /* Pathname of directory to create (native). */ { int error; CONST TCHAR *nativePath; nativePath = (TCHAR *) Tcl_DStringValue(pathPtr); if ((*tclWinProcs->createDirectoryProc)(nativePath, NULL) == 0) { error = GetLastError(); TclWinConvertError(error); return TCL_ERROR; } return TCL_OK; } /* *--------------------------------------------------------------------------- * * TclpCopyDirectory -- * * Recursively copies a directory. The target directory dst must * not already exist. Note that this function does not merge two * directory hierarchies, even if the target directory is an an * empty directory. * * Results: * If the directory was successfully copied, returns TCL_OK. * Otherwise the return value is TCL_ERROR, errno is set to indicate * the error, and the pathname of the file that caused the error * is stored in errorPtr. See TclpCreateDirectory and TclpCopyFile * for a description of possible values for errno. * * Side effects: * An exact copy of the directory hierarchy src will be created * with the name dst. If an error occurs, the error will * be returned immediately, and remaining files will not be * processed. * *--------------------------------------------------------------------------- */ int TclpCopyDirectory( CONST char *src, /* Pathname of directory to be copied * (UTF-8). */ CONST char *dst, /* Pathname of target directory (UTF-8). */ Tcl_DString *errorPtr) /* If non-NULL, uninitialized or free * DString filled with UTF-8 name of file * causing error. */ { int result; Tcl_DString srcString, dstString; Tcl_WinUtfToTChar(src, -1, &srcString); Tcl_WinUtfToTChar(dst, -1, &dstString); result = TraverseWinTree(TraversalCopy, &srcString, &dstString, errorPtr); Tcl_DStringFree(&srcString); Tcl_DStringFree(&dstString); return result; } /* *---------------------------------------------------------------------- * * TclpRemoveDirectory, DoRemoveDirectory -- * * Removes directory (and its contents, if the recursive flag is set). * * Results: * If the directory was successfully removed, returns TCL_OK. * Otherwise the return value is TCL_ERROR, errno is set to indicate * the error, and the pathname of the file that caused the error * is stored in errorPtr. Some possible values for errno are: * * EACCES: path directory can't be read and/or written. * EEXIST: path is a non-empty directory. * EINVAL: path is root directory or current directory. * ENOENT: path doesn't exist or is "". * ENOTDIR: path is not a directory. * * EACCES: path is a char device (nul:, com1:, etc.) (95) * EINVAL: path is a char device (nul:, com1:, etc.) (NT) * * Side effects: * Directory removed. If an error occurs, the error will be returned * immediately, and remaining files will not be deleted. * *---------------------------------------------------------------------- */ int TclpRemoveDirectory( CONST char *path, /* Pathname of directory to be removed * (UTF-8). */ 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 result; Tcl_DString pathString; Tcl_WinUtfToTChar(path, -1, &pathString); result = DoRemoveDirectory(&pathString, recursive, errorPtr); Tcl_DStringFree(&pathString); return result; } 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. */ { CONST TCHAR *nativePath; DWORD attr; nativePath = (TCHAR *) Tcl_DStringValue(pathPtr); if ((*tclWinProcs->removeDirectoryProc)(nativePath) != FALSE) { return TCL_OK; } TclWinConvertError(GetLastError()); /* * Win32s thinks that "" is the same as "." and then reports EACCES * instead of ENOENT. */ if (tclWinProcs->useWide) { if (((WCHAR *) nativePath)[0] == '\0') { Tcl_SetErrno(ENOENT); return TCL_ERROR; } } else { if (((char *) nativePath)[0] == '\0') { Tcl_SetErrno(ENOENT); return TCL_ERROR; } } if (Tcl_GetErrno() == EACCES) { 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_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) { char *path, *find; HANDLE handle; WIN32_FIND_DATAA data; Tcl_DString buffer; int len; path = (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 ((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); } end: if (errorPtr != NULL) { Tcl_WinTCharToUtf(nativePath, -1, errorPtr); } return TCL_ERROR; } /* *--------------------------------------------------------------------------- * * 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). */ Tcl_DString *errorPtr) /* If non-NULL, uninitialized or free * DString filled with UTF-8 name of file * causing error. */ { DWORD sourceAttr; TCHAR *nativeSource, *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); 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)(sourcePtr, targetPtr, 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)(sourcePtr, targetPtr, 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)(sourcePtr, 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( Tcl_DString *srcPtr, /* Source pathname to copy. */ Tcl_DString *dstPtr, /* 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. */ { TCHAR *nativeDst, *nativeSrc; DWORD attr; switch (type) { case DOTREE_F: { if (DoCopyFile(srcPtr, dstPtr) == TCL_OK) { return TCL_OK; } break; } case DOTREE_PRED: { if (DoCreateDirectory(dstPtr) == TCL_OK) { nativeSrc = (TCHAR *) Tcl_DStringValue(srcPtr); nativeDst = (TCHAR *) Tcl_DStringValue(dstPtr); 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) { nativeDst = (TCHAR *) Tcl_DStringValue(dstPtr); 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( Tcl_DString *srcPtr, /* Source pathname to delete. */ Tcl_DString *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. */ { TCHAR *nativeSrc; switch (type) { case DOTREE_F: { if (DoDeleteFile(srcPtr) == TCL_OK) { return TCL_OK; } break; } case DOTREE_PRED: { return TCL_OK; } case DOTREE_POSTD: { if (DoRemoveDirectory(srcPtr, 0, NULL) == TCL_OK) { return TCL_OK; } break; } } if (errorPtr != NULL) { nativeSrc = (TCHAR *) Tcl_DStringValue(srcPtr); 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( Tcl_Interp *interp, /* The interp that has the error */ CONST char *fileName) /* The name of the file which caused the * error. */ { TclWinConvertError(GetLastError()); Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), "could not read \"", fileName, "\": ", Tcl_PosixError(interp), (char *) NULL); } /* *---------------------------------------------------------------------- * * GetWinFileAttributes -- * * Returns a Tcl_Obj containing the value of a file attribute. * This routine gets the -hidden, -readonly or -system attribute. * * Results: * Standard Tcl result and a Tcl_Obj in attributePtrPtr. The object * will have ref count 0. If the return value is not TCL_OK, * attributePtrPtr is not touched. * * Side effects: * A new object is allocated if the file is valid. * *---------------------------------------------------------------------- */ static int GetWinFileAttributes( 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. */ Tcl_Obj **attributePtrPtr) /* A pointer to return the object with. */ { DWORD result; Tcl_DString ds; TCHAR *nativeName; nativeName = Tcl_WinUtfToTChar(fileName, -1, &ds); result = (*tclWinProcs->getFileAttributesProc)(nativeName); Tcl_DStringFree(&ds); if (result == 0xffffffff) { StatError(interp, fileName); return TCL_ERROR; } *attributePtrPtr = Tcl_NewBooleanObj(result & attributeArray[objIndex]); return TCL_OK; } /* *---------------------------------------------------------------------- * * ConvertFileNameFormat -- * * Returns a Tcl_Obj containing either the long or short version of the * file name. * * Results: * Standard Tcl result and a Tcl_Obj in attributePtrPtr. The object * will have ref count 0. If the return value is not TCL_OK, * attributePtrPtr is not touched. * * Side effects: * A new object is allocated if the file is valid. * *---------------------------------------------------------------------- */ 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; } /* *---------------------------------------------------------------------- * * GetWinFileLongName -- * * Returns a Tcl_Obj containing the short version of the file * name. * * Results: * Standard Tcl result and a Tcl_Obj in attributePtrPtr. The object * will have ref count 0. If the return value is not TCL_OK, * attributePtrPtr is not touched. * * Side effects: * A new object is allocated if the file is valid. * *---------------------------------------------------------------------- */ static int GetWinFileLongName( 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. */ Tcl_Obj **attributePtrPtr) /* A pointer to return the object with. */ { return ConvertFileNameFormat(interp, objIndex, fileName, 1, attributePtrPtr); } /* *---------------------------------------------------------------------- * * GetWinFileShortName -- * * Returns a Tcl_Obj containing the short version of the file * name. * * Results: * Standard Tcl result and a Tcl_Obj in attributePtrPtr. The object * will have ref count 0. If the return value is not TCL_OK, * attributePtrPtr is not touched. * * Side effects: * A new object is allocated if the file is valid. * *---------------------------------------------------------------------- */ static int GetWinFileShortName( 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. */ Tcl_Obj **attributePtrPtr) /* A pointer to return the object with. */ { return ConvertFileNameFormat(interp, objIndex, fileName, 0, attributePtrPtr); } /* *---------------------------------------------------------------------- * * SetWinFileAttributes -- * * Set the file attributes to the value given by attributePtr. * This routine sets the -hidden, -readonly, or -system attributes. * * Results: * Standard TCL error. * * Side effects: * The file's attribute is set. * *---------------------------------------------------------------------- */ static int SetWinFileAttributes( 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. */ Tcl_Obj *attributePtr) /* The new value of the attribute. */ { DWORD fileAttributes; int yesNo; int result; Tcl_DString ds; TCHAR *nativeName; nativeName = Tcl_WinUtfToTChar(fileName, -1, &ds); fileAttributes = (*tclWinProcs->getFileAttributesProc)(nativeName); if (fileAttributes == 0xffffffff) { StatError(interp, fileName); result = TCL_ERROR; goto end; } result = Tcl_GetBooleanFromObj(interp, attributePtr, &yesNo); if (result != TCL_OK) { goto end; } if (yesNo) { fileAttributes |= (attributeArray[objIndex]); } else { fileAttributes &= ~(attributeArray[objIndex]); } if (!(*tclWinProcs->setFileAttributesProc)(nativeName, fileAttributes)) { StatError(interp, fileName); result = TCL_ERROR; goto end; } end: Tcl_DStringFree(&ds); return result; } /* *---------------------------------------------------------------------- * * SetWinFileLongName -- * * The attribute in question is a readonly attribute and cannot * be set. * * Results: * TCL_ERROR * * Side effects: * The object result is set to a pertinant error message. * *---------------------------------------------------------------------- */ static int CannotSetAttribute( 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. */ Tcl_Obj *attributePtr) /* The new value of the attribute. */ { Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), "cannot set attribute \"", tclpFileAttrStrings[objIndex], "\" for file \"", fileName, "\": attribute is readonly", (char *) NULL); return TCL_ERROR; } /* *--------------------------------------------------------------------------- * * TclpListVolumes -- * * Lists the currently mounted volumes * * Results: * A standard Tcl result. Will always be TCL_OK, since there is no way * that this command can fail. Also, the interpreter's result is set to * the list of volumes. * * Side effects: * None * *--------------------------------------------------------------------------- */ int TclpListVolumes( Tcl_Interp *interp) /* Interpreter for returning volume list. */ { Tcl_Obj *resultPtr, *elemPtr; char buf[40 * 4]; /* There couldn't be more than 30 drives??? */ int i; char *p; resultPtr = Tcl_GetObjResult(interp); /* * On Win32s: * GetLogicalDriveStrings() isn't implemented. * GetLogicalDrives() returns incorrect information. */ if (GetLogicalDriveStringsA(sizeof(buf), buf) == 0) { /* * GetVolumeInformation() will detects all drives, but causes * chattering on empty floppy drives. We only do this if * GetLogicalDriveStrings() didn't work. It has also been reported * that on some laptops it takes a while for GetVolumeInformation() * to return when pinging an empty floppy drive, another reason to * try to avoid calling it. */ buf[1] = ':'; buf[2] = '/'; buf[3] = '\0'; for (i = 0; i < 26; i++) { buf[0] = (char) ('a' + i); if (GetVolumeInformationA(buf, NULL, 0, NULL, NULL, NULL, NULL, 0) || (GetLastError() == ERROR_NOT_READY)) { elemPtr = Tcl_NewStringObj(buf, -1); Tcl_ListObjAppendElement(NULL, resultPtr, elemPtr); } } } else { for (p = buf; *p != '\0'; p += 4) { p[2] = '/'; elemPtr = Tcl_NewStringObj(p, -1); Tcl_ListObjAppendElement(NULL, resultPtr, elemPtr); } } return TCL_OK; } /* $History: tclwinfcmd.c $ * * ***************** Version 1 ***************** * User: Dtashley Date: 1/02/01 Time: 12:39a * Created in $/IjuScripter, IjuConsole/Source/Tcl Base * Initial check-in. */ /* End of TCLWINFCMD.C */