/* * tclWinFCmd.c * * This file implements the Windows specific portion of file manipulation * subcommands of the "file" command. * * Copyright © 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. */ #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 */ #define DOTREE_LINK 4 /* symbolic link */ /* * Callbacks for file attributes code. */ static int GetWinFileAttributes(Tcl_Interp *interp, int objIndex, Tcl_Obj *fileName, Tcl_Obj **attributePtrPtr); static int GetWinFileLongName(Tcl_Interp *interp, int objIndex, Tcl_Obj *fileName, Tcl_Obj **attributePtrPtr); static int GetWinFileShortName(Tcl_Interp *interp, int objIndex, Tcl_Obj *fileName, Tcl_Obj **attributePtrPtr); static int SetWinFileAttributes(Tcl_Interp *interp, int objIndex, Tcl_Obj *fileName, Tcl_Obj *attributePtr); static int CannotSetAttribute(Tcl_Interp *interp, int objIndex, Tcl_Obj *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 const int attributeArray[] = {FILE_ATTRIBUTE_ARCHIVE, FILE_ATTRIBUTE_HIDDEN, 0, FILE_ATTRIBUTE_READONLY, 0, FILE_ATTRIBUTE_SYSTEM}; const char *const tclpFileAttrStrings[] = { "-archive", "-hidden", "-longname", "-readonly", "-shortname", "-system", 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)(const WCHAR *srcPtr, const WCHAR *dstPtr, int type, Tcl_DString *errorPtr); /* * Declarations for local functions defined in this file: */ static void StatError(Tcl_Interp *interp, Tcl_Obj *fileName); static int ConvertFileNameFormat(Tcl_Interp *interp, int objIndex, Tcl_Obj *fileName, int longShort, Tcl_Obj **attributePtrPtr); static int DoCopyFile(const WCHAR *srcPtr, const WCHAR *dstPtr); static int DoCreateDirectory(const WCHAR *pathPtr); static int DoRemoveJustDirectory(const WCHAR *nativeSrc, int ignoreError, Tcl_DString *errorPtr); static int DoRemoveDirectory(Tcl_DString *pathPtr, int recursive, Tcl_DString *errorPtr); static int DoRenameFile(const WCHAR *nativeSrc, const WCHAR *dstPtr); static int TraversalCopy(const WCHAR *srcPtr, const WCHAR *dstPtr, int type, Tcl_DString *errorPtr); static int TraversalDelete(const WCHAR *srcPtr, const WCHAR *dstPtr, int type, Tcl_DString *errorPtr); static int TraverseWinTree(TraversalProc *traverseProc, Tcl_DString *sourcePtr, Tcl_DString *dstPtr, Tcl_DString *errorPtr); /* *--------------------------------------------------------------------------- * * TclpObjRenameFile, 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 TclpObjRenameFile( Tcl_Obj *srcPathPtr, Tcl_Obj *destPathPtr) { return DoRenameFile((const WCHAR *)Tcl_FSGetNativePath(srcPathPtr), (const WCHAR *)Tcl_FSGetNativePath(destPathPtr)); } static int DoRenameFile( const WCHAR *nativeSrc, /* Pathname of file or dir to be renamed * (native). */ const WCHAR *nativeDst) /* New pathname for file or directory * (native). */ { #if defined(HAVE_NO_SEH) && !defined(_WIN64) TCLEXCEPTION_REGISTRATION registration; #endif DWORD srcAttr, dstAttr; int retval = -1; /* * The MoveFile API acts differently under Win95/98 and NT WRT NULL and * "". Avoid passing these values. */ if (nativeSrc == NULL || nativeSrc[0] == '\0' || nativeDst == NULL || nativeDst[0] == '\0') { Tcl_SetErrno(ENOENT); return TCL_ERROR; } /* * The MoveFile API would throw an exception under NT if one of the * arguments is a char block device. */ #if defined(HAVE_NO_SEH) && !defined(_WIN64) /* * Don't have SEH available, do things the hard way. Note that this needs * to be one block of asm, to avoid stack imbalance; also, it is illegal * for one asm block to contain a jump to another. */ __asm__ __volatile__ ( /* * Pick up params before messing with the stack. */ "movl %[nativeDst], %%ebx" "\n\t" "movl %[nativeSrc], %%ecx" "\n\t" /* * Construct an TCLEXCEPTION_REGISTRATION to protect the call to * MoveFile. */ "leal %[registration], %%edx" "\n\t" "movl %%fs:0, %%eax" "\n\t" "movl %%eax, 0x0(%%edx)" "\n\t" /* link */ "leal 1f, %%eax" "\n\t" "movl %%eax, 0x4(%%edx)" "\n\t" /* handler */ "movl %%ebp, 0x8(%%edx)" "\n\t" /* ebp */ "movl %%esp, 0xC(%%edx)" "\n\t" /* esp */ "movl $0, 0x10(%%edx)" "\n\t" /* status */ /* * Link the TCLEXCEPTION_REGISTRATION on the chain. */ "movl %%edx, %%fs:0" "\n\t" /* * Call MoveFileW(nativeSrc, nativeDst) */ "pushl %%ebx" "\n\t" "pushl %%ecx" "\n\t" "movl %[moveFileW], %%eax" "\n\t" "call *%%eax" "\n\t" /* * Come here on normal exit. Recover the TCLEXCEPTION_REGISTRATION and * put the status return from MoveFile into it. */ "movl %%fs:0, %%edx" "\n\t" "movl %%eax, 0x10(%%edx)" "\n\t" "jmp 2f" "\n" /* * Come here on an exception. Recover the TCLEXCEPTION_REGISTRATION */ "1:" "\t" "movl %%fs:0, %%edx" "\n\t" "movl 0x8(%%edx), %%edx" "\n\t" /* * Come here however we exited. Restore context from the * TCLEXCEPTION_REGISTRATION in case the stack is unbalanced. */ "2:" "\t" "movl 0xC(%%edx), %%esp" "\n\t" "movl 0x8(%%edx), %%ebp" "\n\t" "movl 0x0(%%edx), %%eax" "\n\t" "movl %%eax, %%fs:0" "\n\t" : /* No outputs */ : [registration] "m" (registration), [nativeDst] "m" (nativeDst), [nativeSrc] "m" (nativeSrc), [moveFileW] "r" (MoveFileW) : "%eax", "%ebx", "%ecx", "%edx", "memory" ); if (registration.status != FALSE) { retval = TCL_OK; } #else #ifndef HAVE_NO_SEH __try { #endif if ((*MoveFileW)(nativeSrc, nativeDst) != FALSE) { retval = TCL_OK; } #ifndef HAVE_NO_SEH } __except (EXCEPTION_EXECUTE_HANDLER) {} #endif #endif if (retval != -1) { return retval; } Tcl_WinConvertError(GetLastError()); srcAttr = GetFileAttributesW(nativeSrc); dstAttr = GetFileAttributesW(nativeDst); if (srcAttr == 0xFFFFFFFF) { if (GetFullPathNameW(nativeSrc, 0, NULL, NULL) >= MAX_PATH) { errno = ENAMETOOLONG; return TCL_ERROR; } srcAttr = 0; } if (dstAttr == 0xFFFFFFFF) { if (GetFullPathNameW(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) { WCHAR *nativeSrcRest, *nativeDstRest; const char **srcArgv, **dstArgv; size_t size; Tcl_Size srcArgc, dstArgc; WCHAR nativeSrcPath[MAX_PATH]; WCHAR nativeDstPath[MAX_PATH]; Tcl_DString srcString, dstString; const char *src, *dst; size = GetFullPathNameW(nativeSrc, MAX_PATH, nativeSrcPath, &nativeSrcRest); if ((size == 0) || (size > MAX_PATH)) { return TCL_ERROR; } size = GetFullPathNameW(nativeDst, MAX_PATH, nativeDstPath, &nativeDstRest); if ((size == 0) || (size > MAX_PATH)) { return TCL_ERROR; } CharLowerW(nativeSrcPath); CharLowerW(nativeDstPath); Tcl_DStringInit(&srcString); Tcl_DStringInit(&dstString); src = Tcl_WCharToUtfDString(nativeSrcPath, TCL_INDEX_NONE, &srcString); dst = Tcl_WCharToUtfDString(nativeDstPath, TCL_INDEX_NONE, &dstString); /* * Check whether the destination path is actually inside the * source path. This is true if the prefix matches, and the next * character is either end-of-string or a directory separator */ if ((strncmp(src, dst, Tcl_DStringLength(&srcString))==0) && (dst[Tcl_DStringLength(&srcString)] == '\\' || dst[Tcl_DStringLength(&srcString)] == '/' || 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); } Tcl_Free((void *)srcArgv); Tcl_Free((void *)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 (DoRemoveJustDirectory(nativeDst, 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 (MoveFileW(nativeSrc, nativeDst) != FALSE) { return TCL_OK; } /* * Some new error has occurred. Don't know what it could * be, but report this one. */ Tcl_WinConvertError(GetLastError()); CreateDirectoryW(nativeDst, NULL); SetFileAttributesW(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. */ WCHAR *nativeRest, *nativeTmp, *nativePrefix; int result, size; WCHAR tempBuf[MAX_PATH]; size = GetFullPathNameW(nativeDst, MAX_PATH, tempBuf, &nativeRest); if ((size == 0) || (size > MAX_PATH) || (nativeRest == NULL)) { return TCL_ERROR; } nativeTmp = (WCHAR *) tempBuf; nativeRest[0] = '\0'; result = TCL_ERROR; nativePrefix = (WCHAR *)L"tclr"; if (GetTempFileNameW(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 = tempBuf; DeleteFileW(nativeTmp); if (MoveFileW(nativeDst, nativeTmp) != FALSE) { if (MoveFileW(nativeSrc, nativeDst) != FALSE) { SetFileAttributesW(nativeTmp, FILE_ATTRIBUTE_NORMAL); DeleteFileW(nativeTmp); return TCL_OK; } else { DeleteFileW(nativeDst); MoveFileW(nativeTmp, nativeDst); } } /* * Can't backup dst file or move src file. Return that * error. Could happen if an open file refers to dst. */ Tcl_WinConvertError(GetLastError()); if (Tcl_GetErrno() == EACCES) { /* * Decode the EACCES to a more meaningful error. */ goto decode; } } return result; } } } return TCL_ERROR; } /* *--------------------------------------------------------------------------- * * TclpObjCopyFile, 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 TclpObjCopyFile( Tcl_Obj *srcPathPtr, Tcl_Obj *destPathPtr) { return DoCopyFile((const WCHAR *)Tcl_FSGetNativePath(srcPathPtr), (const WCHAR *)Tcl_FSGetNativePath(destPathPtr)); } static int DoCopyFile( const WCHAR *nativeSrc, /* Pathname of file to be copied (native). */ const WCHAR *nativeDst) /* Pathname of file to copy to (native). */ { #if defined(HAVE_NO_SEH) && !defined(_WIN64) TCLEXCEPTION_REGISTRATION registration; #endif int retval = -1; /* * The CopyFile API acts differently under Win95/98 and NT WRT NULL and * "". Avoid passing these values. */ if (nativeSrc == NULL || nativeSrc[0] == '\0' || nativeDst == NULL || nativeDst[0] == '\0') { Tcl_SetErrno(ENOENT); return TCL_ERROR; } /* * The CopyFile API would throw an exception under NT if one of the * arguments is a char block device. */ #if defined(HAVE_NO_SEH) && !defined(_WIN64) /* * Don't have SEH available, do things the hard way. Note that this needs * to be one block of asm, to avoid stack imbalance; also, it is illegal * for one asm block to contain a jump to another. */ __asm__ __volatile__ ( /* * Pick up parameters before messing with the stack */ "movl %[nativeDst], %%ebx" "\n\t" "movl %[nativeSrc], %%ecx" "\n\t" /* * Construct an TCLEXCEPTION_REGISTRATION to protect the call to * CopyFile. */ "leal %[registration], %%edx" "\n\t" "movl %%fs:0, %%eax" "\n\t" "movl %%eax, 0x0(%%edx)" "\n\t" /* link */ "leal 1f, %%eax" "\n\t" "movl %%eax, 0x4(%%edx)" "\n\t" /* handler */ "movl %%ebp, 0x8(%%edx)" "\n\t" /* ebp */ "movl %%esp, 0xC(%%edx)" "\n\t" /* esp */ "movl $0, 0x10(%%edx)" "\n\t" /* status */ /* * Link the TCLEXCEPTION_REGISTRATION on the chain. */ "movl %%edx, %%fs:0" "\n\t" /* * Call CopyFileW(nativeSrc, nativeDst, 0) */ "movl %[copyFileW], %%eax" "\n\t" "pushl $0" "\n\t" "pushl %%ebx" "\n\t" "pushl %%ecx" "\n\t" "call *%%eax" "\n\t" /* * Come here on normal exit. Recover the TCLEXCEPTION_REGISTRATION and * put the status return from CopyFile into it. */ "movl %%fs:0, %%edx" "\n\t" "movl %%eax, 0x10(%%edx)" "\n\t" "jmp 2f" "\n" /* * Come here on an exception. Recover the TCLEXCEPTION_REGISTRATION */ "1:" "\t" "movl %%fs:0, %%edx" "\n\t" "movl 0x8(%%edx), %%edx" "\n\t" /* * Come here however we exited. Restore context from the * TCLEXCEPTION_REGISTRATION in case the stack is unbalanced. */ "2:" "\t" "movl 0xC(%%edx), %%esp" "\n\t" "movl 0x8(%%edx), %%ebp" "\n\t" "movl 0x0(%%edx), %%eax" "\n\t" "movl %%eax, %%fs:0" "\n\t" : /* No outputs */ : [registration] "m" (registration), [nativeDst] "m" (nativeDst), [nativeSrc] "m" (nativeSrc), [copyFileW] "r" (CopyFileW) : "%eax", "%ebx", "%ecx", "%edx", "memory" ); if (registration.status != FALSE) { retval = TCL_OK; } #else #ifndef HAVE_NO_SEH __try { #endif if (CopyFileW(nativeSrc, nativeDst, 0) != FALSE) { retval = TCL_OK; } #ifndef HAVE_NO_SEH } __except (EXCEPTION_EXECUTE_HANDLER) {} #endif #endif if (retval != -1) { return retval; } Tcl_WinConvertError(GetLastError()); if (Tcl_GetErrno() == EBADF) { Tcl_SetErrno(EACCES); return TCL_ERROR; } if (Tcl_GetErrno() == EACCES) { DWORD srcAttr, dstAttr; srcAttr = GetFileAttributesW(nativeSrc); dstAttr = GetFileAttributesW(nativeDst); if (srcAttr != 0xFFFFFFFF) { if (dstAttr == 0xFFFFFFFF) { dstAttr = 0; } if ((srcAttr & FILE_ATTRIBUTE_DIRECTORY) || (dstAttr & FILE_ATTRIBUTE_DIRECTORY)) { if (srcAttr & FILE_ATTRIBUTE_REPARSE_POINT) { /* Source is a symbolic link -- copy it */ if (TclWinSymLinkCopyDirectory(nativeSrc, nativeDst)==0) { return TCL_OK; } } Tcl_SetErrno(EISDIR); } if (dstAttr & FILE_ATTRIBUTE_READONLY) { SetFileAttributesW(nativeDst, dstAttr & ~((DWORD)FILE_ATTRIBUTE_READONLY)); if (CopyFileW(nativeSrc, nativeDst, 0) != FALSE) { return TCL_OK; } /* * Still can't copy onto dst. Return that error, and restore * attributes of dst. */ Tcl_WinConvertError(GetLastError()); SetFileAttributesW(nativeDst, dstAttr); } } } return TCL_ERROR; } /* *--------------------------------------------------------------------------- * * TclpObjDeleteFile, TclpDeleteFile -- * * 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 TclpObjDeleteFile( Tcl_Obj *pathPtr) { return TclpDeleteFile(Tcl_FSGetNativePath(pathPtr)); } int TclpDeleteFile( const void *nativePath) /* Pathname of file to be removed (native). */ { DWORD attr; const WCHAR *path = (const WCHAR *)nativePath; /* * The DeleteFile API acts differently under Win95/98 and NT WRT NULL and * "". Avoid passing these values. */ if (path == NULL || path[0] == '\0') { Tcl_SetErrno(ENOENT); return TCL_ERROR; } if (DeleteFileW(path) != FALSE) { return TCL_OK; } Tcl_WinConvertError(GetLastError()); if (Tcl_GetErrno() == EACCES) { attr = GetFileAttributesW(path); if (attr != 0xFFFFFFFF) { if (attr & FILE_ATTRIBUTE_DIRECTORY) { if (attr & FILE_ATTRIBUTE_REPARSE_POINT) { /* * It is a symbolic link - remove it. */ if (TclWinSymLinkDelete(path, 0) == 0) { return TCL_OK; } } /* * If we fall through here, it is a directory. * * Windows NT reports removing a directory as EACCES instead * of EISDIR. */ Tcl_SetErrno(EISDIR); } else if (attr & FILE_ATTRIBUTE_READONLY) { int res = SetFileAttributesW(path, attr & ~((DWORD) FILE_ATTRIBUTE_READONLY)); if ((res != 0) && (DeleteFileW(path) != FALSE)) { return TCL_OK; } Tcl_WinConvertError(GetLastError()); if (res != 0) { SetFileAttributesW(path, attr); } } } } else if (Tcl_GetErrno() == ENOENT) { attr = GetFileAttributesW(path); 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; } /* *--------------------------------------------------------------------------- * * TclpObjCreateDirectory -- * * 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 TclpObjCreateDirectory( Tcl_Obj *pathPtr) { return DoCreateDirectory((const WCHAR *)Tcl_FSGetNativePath(pathPtr)); } static int DoCreateDirectory( const WCHAR *nativePath) /* Pathname of directory to create (native). */ { if (CreateDirectoryW(nativePath, NULL) == 0) { DWORD error = GetLastError(); Tcl_WinConvertError(error); return TCL_ERROR; } return TCL_OK; } /* *--------------------------------------------------------------------------- * * TclpObjCopyDirectory -- * * 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 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 TclpObjCopyDirectory( Tcl_Obj *srcPathPtr, Tcl_Obj *destPathPtr, Tcl_Obj **errorPtr) { Tcl_DString ds; Tcl_DString srcString, dstString; Tcl_Obj *normSrcPtr, *normDestPtr; int ret; normSrcPtr = Tcl_FSGetNormalizedPath(NULL,srcPathPtr); normDestPtr = Tcl_FSGetNormalizedPath(NULL,destPathPtr); if ((normSrcPtr == NULL) || (normDestPtr == NULL)) { return TCL_ERROR; } Tcl_DStringInit(&srcString); Tcl_DStringInit(&dstString); Tcl_UtfToWCharDString(TclGetString(normSrcPtr), TCL_INDEX_NONE, &srcString); Tcl_UtfToWCharDString(TclGetString(normDestPtr), TCL_INDEX_NONE, &dstString); ret = TraverseWinTree(TraversalCopy, &srcString, &dstString, &ds); Tcl_DStringFree(&srcString); Tcl_DStringFree(&dstString); if (ret != TCL_OK) { if (!strcmp(Tcl_DStringValue(&ds), TclGetString(normSrcPtr))) { *errorPtr = srcPathPtr; } else if (!strcmp(Tcl_DStringValue(&ds), TclGetString(normDestPtr))) { *errorPtr = destPathPtr; } else { *errorPtr = Tcl_DStringToObj(&ds); } Tcl_DStringFree(&ds); Tcl_IncrRefCount(*errorPtr); } return ret; } /* *---------------------------------------------------------------------- * * TclpObjRemoveDirectory, 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 TclpObjRemoveDirectory( Tcl_Obj *pathPtr, int recursive, Tcl_Obj **errorPtr) { Tcl_DString ds; Tcl_Obj *normPtr = NULL; int ret; if (recursive) { /* * In the recursive case, the string rep is used to construct a * Tcl_DString which may be used extensively, so we can't optimize * this case easily. */ Tcl_DString native; normPtr = Tcl_FSGetNormalizedPath(NULL, pathPtr); if (normPtr == NULL) { return TCL_ERROR; } Tcl_DStringInit(&native); Tcl_UtfToWCharDString(TclGetString(normPtr), TCL_INDEX_NONE, &native); ret = DoRemoveDirectory(&native, recursive, &ds); Tcl_DStringFree(&native); } else { ret = DoRemoveJustDirectory((const WCHAR *)Tcl_FSGetNativePath(pathPtr), 0, &ds); } if (ret != TCL_OK) { if (Tcl_DStringLength(&ds) > 0) { if (normPtr != NULL && !strcmp(Tcl_DStringValue(&ds), TclGetString(normPtr))) { *errorPtr = pathPtr; } else { *errorPtr = Tcl_DStringToObj(&ds); } Tcl_IncrRefCount(*errorPtr); } Tcl_DStringFree(&ds); } return ret; } static int DoRemoveJustDirectory( const WCHAR *nativePath, /* Pathname of directory to be removed * (native). */ int ignoreError, /* If non-zero, don't initialize the errorPtr * under some circumstances on return. */ Tcl_DString *errorPtr) /* If non-NULL, uninitialized or free DString * filled with UTF-8 name of file causing * error. */ { DWORD attr; /* * 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); Tcl_DStringInit(errorPtr); return TCL_ERROR; } attr = GetFileAttributesW(nativePath); if (attr & FILE_ATTRIBUTE_REPARSE_POINT) { /* * It is a symbolic link - remove it. */ if (TclWinSymLinkDelete(nativePath, 0) == 0) { return TCL_OK; } } else { /* * Ordinary directory. */ if (RemoveDirectoryW(nativePath) != FALSE) { return TCL_OK; } } Tcl_WinConvertError(GetLastError()); if (Tcl_GetErrno() == EACCES) { attr = GetFileAttributesW(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 (SetFileAttributesW(nativePath, attr) == FALSE) { goto end; } if (RemoveDirectoryW(nativePath) != FALSE) { return TCL_OK; } Tcl_WinConvertError(GetLastError()); SetFileAttributesW(nativePath, attr | FILE_ATTRIBUTE_READONLY); } } } 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) { char *p; Tcl_DStringInit(errorPtr); p = Tcl_WCharToUtfDString(nativePath, TCL_INDEX_NONE, errorPtr); for (; *p; ++p) { if (*p == '\\') { *p = '/'; } } } 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((const WCHAR *)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; WCHAR *nativeSource, *nativeTarget, *nativeErrfile; int result, found, sourceLen, targetLen = 0, oldSourceLen, oldTargetLen; HANDLE handle; WIN32_FIND_DATAW data; nativeErrfile = NULL; result = TCL_OK; oldTargetLen = 0; nativeSource = (WCHAR *) Tcl_DStringValue(sourcePtr); nativeTarget = (WCHAR *) (targetPtr == NULL ? NULL : Tcl_DStringValue(targetPtr)); oldSourceLen = Tcl_DStringLength(sourcePtr); sourceAttr = GetFileAttributesW(nativeSource); if (sourceAttr == 0xFFFFFFFF) { nativeErrfile = nativeSource; goto end; } if (sourceAttr & FILE_ATTRIBUTE_REPARSE_POINT) { /* * Process the symbolic link */ return traverseProc(nativeSource, nativeTarget, DOTREE_LINK, errorPtr); } if ((sourceAttr & FILE_ATTRIBUTE_DIRECTORY) == 0) { /* * Process the regular file */ return traverseProc(nativeSource, nativeTarget, DOTREE_F, errorPtr); } Tcl_DStringAppend(sourcePtr, (char *) L"\\*.*", 4 * sizeof(WCHAR) + 1); Tcl_DStringSetLength(sourcePtr, Tcl_DStringLength(sourcePtr) - 1); nativeSource = (WCHAR *) Tcl_DStringValue(sourcePtr); handle = FindFirstFileW(nativeSource, &data); if (handle == INVALID_HANDLE_VALUE) { /* * Can't read directory. */ Tcl_WinConvertError(GetLastError()); nativeErrfile = nativeSource; goto end; } Tcl_DStringSetLength(sourcePtr, oldSourceLen + 1); Tcl_DStringSetLength(sourcePtr, oldSourceLen); result = traverseProc(nativeSource, nativeTarget, DOTREE_PRED, errorPtr); if (result != TCL_OK) { FindClose(handle); return result; } sourceLen = oldSourceLen + sizeof(WCHAR); Tcl_DStringAppend(sourcePtr, (char *) L"\\", sizeof(WCHAR) + 1); Tcl_DStringSetLength(sourcePtr, sourceLen); if (targetPtr != NULL) { oldTargetLen = Tcl_DStringLength(targetPtr); targetLen = oldTargetLen; targetLen += sizeof(WCHAR); Tcl_DStringAppend(targetPtr, (char *) L"\\", sizeof(WCHAR) + 1); Tcl_DStringSetLength(targetPtr, targetLen); } found = 1; for (; found; found = FindNextFileW(handle, &data)) { WCHAR *nativeName; int len; WCHAR *wp = data.cFileName; if (*wp == '.') { wp++; if (*wp == '.') { wp++; } if (*wp == '\0') { continue; } } nativeName = (WCHAR *) data.cFileName; len = wcslen(data.cFileName) * sizeof(WCHAR); /* * 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((const WCHAR *)Tcl_DStringValue(sourcePtr), (const WCHAR *)(targetPtr == NULL ? NULL : Tcl_DStringValue(targetPtr)), DOTREE_POSTD, errorPtr); } end: if (nativeErrfile != NULL) { Tcl_WinConvertError(GetLastError()); if (errorPtr != NULL) { Tcl_DStringInit(errorPtr); Tcl_WCharToUtfDString(nativeErrfile, TCL_INDEX_NONE, 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 WCHAR *nativeSrc, /* Source pathname to copy. */ const WCHAR *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_LINK: if (TclWinSymLinkCopyDirectory(nativeSrc, nativeDst) == TCL_OK) { return TCL_OK; } break; case DOTREE_PRED: if (DoCreateDirectory(nativeDst) == TCL_OK) { DWORD attr = GetFileAttributesW(nativeSrc); if (SetFileAttributesW(nativeDst, attr) != FALSE) { return TCL_OK; } Tcl_WinConvertError(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_DStringInit(errorPtr); Tcl_WCharToUtfDString(nativeDst, TCL_INDEX_NONE, errorPtr); } return TCL_ERROR; } /* *---------------------------------------------------------------------- * * TraversalDelete -- * * Called by function TraverseWinTree for every file and directory that * it encounters in a directory hierarchy. This function 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 WCHAR *nativeSrc, /* Source pathname to delete. */ TCL_UNUSED(const WCHAR *) /*dstPtr*/, 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_LINK: if (DoRemoveJustDirectory(nativeSrc, 0, NULL) == 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_DStringInit(errorPtr); Tcl_WCharToUtfDString(nativeSrc, TCL_INDEX_NONE, 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 */ Tcl_Obj *fileName) /* The name of the file which caused the * error. */ { Tcl_WinConvertError(GetLastError()); Tcl_SetObjResult(interp, Tcl_ObjPrintf("could not read \"%s\": %s", TclGetString(fileName), Tcl_PosixError(interp))); } /* *---------------------------------------------------------------------- * * 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. */ Tcl_Obj *fileName, /* The name of the file. */ Tcl_Obj **attributePtrPtr) /* A pointer to return the object with. */ { DWORD result; const WCHAR *nativeName; int attr; nativeName = (const WCHAR *)Tcl_FSGetNativePath(fileName); result = GetFileAttributesW(nativeName); if (result == 0xFFFFFFFF) { StatError(interp, fileName); return TCL_ERROR; } attr = (int)(result & attributeArray[objIndex]); if ((objIndex == WIN_HIDDEN_ATTRIBUTE) && (attr != 0)) { /* * It is hidden. However there is a bug on some Windows OSes in which * root volumes (drives) formatted as NTFS are declared hidden when * they are not (and cannot be). * * We test for, and fix that case, here. */ Tcl_Size len; const char *str = TclGetStringFromObj(fileName, &len); if (len < 4) { if (len == 0) { /* * Not sure if this is possible, but we pass it on anyway. */ } else if (len == 1 && (str[0] == '/' || str[0] == '\\')) { /* * Path is pointing to the root volume. */ attr = 0; } else if ((str[1] == ':') && (len == 2 || (str[2] == '/' || str[2] == '\\'))) { /* * Path is of the form 'x:' or 'x:/' or 'x:\' */ attr = 0; } } } TclNewIntObj(*attributePtrPtr, attr != 0); 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. * * Warning: if you pass this function a drive name like 'c:' it will * actually return the current working directory on that drive. To avoid * this, make sure the drive name ends in a slash, like this 'c:/'. * * 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. */ TCL_UNUSED(int) /*objIndex*/, Tcl_Obj *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. */ { Tcl_Size pathc, i, length; Tcl_Obj *splitPath; splitPath = Tcl_FSSplitPath(fileName, &pathc); if (splitPath == NULL || pathc == 0) { if (interp != NULL) { Tcl_SetObjResult(interp, Tcl_ObjPrintf( "could not read \"%s\": no such file or directory", TclGetString(fileName))); errno = ENOENT; Tcl_PosixError(interp); } goto cleanup; } /* * We will decrement this again at the end. It is safer to do this in * case any of the calls below retain a reference to splitPath. */ Tcl_IncrRefCount(splitPath); for (i = 0; i < pathc; i++) { Tcl_Obj *elt; char *pathv; Tcl_ListObjIndex(NULL, splitPath, i, &elt); pathv = TclGetStringFromObj(elt, &length); if ((pathv[0] == '/') || ((length == 3) && (pathv[1] == ':')) || (strcmp(pathv, ".") == 0) || (strcmp(pathv, "..") == 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: /* * Here we are modifying the string representation in place. * * I believe this is legal, since this won't affect any file * representation this thing may have. */ pathv[0] = (char) Tcl_UniCharToUpper(UCHAR(pathv[0])); } else { Tcl_Obj *tempPath; Tcl_DString ds; Tcl_DString dsTemp; const WCHAR *nativeName; const char *tempString; WIN32_FIND_DATAW data; HANDLE handle; DWORD attr; tempPath = Tcl_FSJoinPath(splitPath, i+1); Tcl_IncrRefCount(tempPath); /* * We'd like to call Tcl_FSGetNativePath(tempPath) but that is * likely to lead to infinite loops. */ tempString = TclGetStringFromObj(tempPath, &length); Tcl_DStringInit(&ds); nativeName = Tcl_UtfToWCharDString(tempString, length, &ds); Tcl_DecrRefCount(tempPath); handle = FindFirstFileW(nativeName, &data); if (handle == INVALID_HANDLE_VALUE) { /* * FindFirstFileW() 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 = GetFileAttributesW(nativeName); if ((attr!=0xFFFFFFFF) && (attr & FILE_ATTRIBUTE_DIRECTORY)) { Tcl_DStringFree(&ds); goto simple; } } if (handle == INVALID_HANDLE_VALUE) { Tcl_DStringFree(&ds); if (interp != NULL) { StatError(interp, fileName); } goto cleanup; } nativeName = data.cAlternateFileName; if (longShort) { if (data.cFileName[0] != '\0') { nativeName = data.cFileName; } } else { if (data.cAlternateFileName[0] == '\0') { nativeName = (WCHAR *) data.cFileName; } } /* * Purify reports a extraneous UMR in Tcl_WCharToUtfDString() 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_DStringInit(&dsTemp); Tcl_WCharToUtfDString(nativeName, TCL_INDEX_NONE, &dsTemp); Tcl_DStringFree(&ds); tempPath = Tcl_DStringToObj(&dsTemp); Tcl_ListObjReplace(NULL, splitPath, i, 1, 1, &tempPath); FindClose(handle); } } *attributePtrPtr = Tcl_FSJoinPath(splitPath, TCL_INDEX_NONE); if (splitPath != NULL) { /* * Unfortunately, the object we will return may have its only refCount * as part of the list splitPath. This means if we free splitPath, the * object will disappear. So, we have to be very careful here. * Unfortunately this means we must manipulate the object's refCount * directly. */ Tcl_IncrRefCount(*attributePtrPtr); Tcl_DecrRefCount(splitPath); --(*attributePtrPtr)->refCount; } return TCL_OK; cleanup: if (splitPath != NULL) { Tcl_DecrRefCount(splitPath); } return TCL_ERROR; } /* *---------------------------------------------------------------------- * * GetWinFileLongName -- * * Returns a Tcl_Obj containing the long 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. */ Tcl_Obj *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. */ Tcl_Obj *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. */ Tcl_Obj *fileName, /* The name of the file. */ Tcl_Obj *attributePtr) /* The new value of the attribute. */ { DWORD fileAttributes, old; int yesNo, result; const WCHAR *nativeName; nativeName = (const WCHAR *)Tcl_FSGetNativePath(fileName); fileAttributes = old = GetFileAttributesW(nativeName); if (fileAttributes == 0xFFFFFFFF) { StatError(interp, fileName); return TCL_ERROR; } result = Tcl_GetBooleanFromObj(interp, attributePtr, &yesNo); if (result != TCL_OK) { return result; } if (yesNo) { fileAttributes |= (attributeArray[objIndex]); } else { fileAttributes &= ~(attributeArray[objIndex]); } if ((fileAttributes != old) && !SetFileAttributesW(nativeName, fileAttributes)) { StatError(interp, fileName); return TCL_ERROR; } 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 pertinent error message. * *---------------------------------------------------------------------- */ static int CannotSetAttribute( Tcl_Interp *interp, /* The interp we are using for errors. */ int objIndex, /* The index of the attribute. */ Tcl_Obj *fileName, /* The name of the file. */ TCL_UNUSED(Tcl_Obj *) /*attributePtr*/) { Tcl_SetObjResult(interp, Tcl_ObjPrintf( "cannot set attribute \"%s\" for file \"%s\": attribute is readonly", tclpFileAttrStrings[objIndex], TclGetString(fileName))); errno = EINVAL; Tcl_PosixError(interp); return TCL_ERROR; } /* *--------------------------------------------------------------------------- * * TclpObjListVolumes -- * * Lists the currently mounted volumes * * Results: * The list of volumes. * * Side effects: * None * *--------------------------------------------------------------------------- */ Tcl_Obj * TclpObjListVolumes(void) { Tcl_Obj *resultPtr, *elemPtr; char buf[40 * 4]; /* There couldn't be more than 30 drives??? */ int i; char *p; TclNewObj(resultPtr); /* * On Win32s: * GetLogicalDriveStrings() isn't implemented. * GetLogicalDrives() returns incorrect information. */ if (GetLogicalDriveStringsA(sizeof(buf), buf) == 0) { /* * GetVolumeInformationW() 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 GetVolumeInformationW() 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, TCL_INDEX_NONE); Tcl_ListObjAppendElement(NULL, resultPtr, elemPtr); } } } else { for (p = buf; *p != '\0'; p += 4) { p[2] = '/'; elemPtr = Tcl_NewStringObj(p, TCL_INDEX_NONE); Tcl_ListObjAppendElement(NULL, resultPtr, elemPtr); } } Tcl_IncrRefCount(resultPtr); return resultPtr; } /* *---------------------------------------------------------------------- * * TclpCreateTemporaryDirectory -- * * Creates a temporary directory, possibly based on the supplied bits and * pieces of template supplied in the arguments. * * Results: * An object (refcount 0) containing the name of the newly-created * directory, or NULL on failure. * * Side effects: * Accesses the native filesystem. Makes a directory. * *---------------------------------------------------------------------- */ Tcl_Obj * TclpCreateTemporaryDirectory( Tcl_Obj *dirObj, Tcl_Obj *basenameObj) { Tcl_DString base, name; /* Contains WCHARs */ int baseLen; DWORD error; WCHAR tempBuf[MAX_PATH + 1]; DWORD len = GetTempPathW(MAX_PATH, tempBuf); /* * Build the path in writable memory from the user-supplied pieces and * some defaults. First, the parent temporary directory. */ if (dirObj) { TclGetString(dirObj); if (dirObj->length < 1) { goto useSystemTemp; } Tcl_DStringInit(&base); Tcl_UtfToWCharDString(TclGetString(dirObj), TCL_INDEX_NONE, &base); if (dirObj->bytes[dirObj->length - 1] != '\\') { Tcl_UtfToWCharDString("\\", TCL_INDEX_NONE, &base); } } else { useSystemTemp: Tcl_DStringInit(&base); Tcl_DStringAppend(&base, (char *) tempBuf, len * sizeof(WCHAR)); } /* * Next, the base of the directory name. */ #define DEFAULT_TEMP_DIR_PREFIX "tcl" #define SUFFIX_LENGTH 8 if (basenameObj) { Tcl_UtfToWCharDString(TclGetString(basenameObj), TCL_INDEX_NONE, &base); } else { Tcl_UtfToWCharDString(DEFAULT_TEMP_DIR_PREFIX, TCL_INDEX_NONE, &base); } Tcl_UtfToWCharDString("_", TCL_INDEX_NONE, &base); /* * Now we keep on trying random suffixes until we get one that works * (i.e., that doesn't trigger the ERROR_ALREADY_EXISTS error). Note that * SUFFIX_LENGTH is longer than on Unix because we expect to be not on a * case-sensitive filesystem. */ baseLen = Tcl_DStringLength(&base); do { char tempbuf[SUFFIX_LENGTH + 1]; int i; static const char randChars[] = "QWERTYUIOPASDFGHJKLZXCVBNM1234567890"; static const int numRandChars = sizeof(randChars) - 1; /* * Put a random suffix on the end. */ error = ERROR_SUCCESS; tempbuf[SUFFIX_LENGTH] = '\0'; for (i = 0 ; i < SUFFIX_LENGTH; i++) { tempbuf[i] = randChars[(int) (rand() % numRandChars)]; } Tcl_DStringSetLength(&base, baseLen); Tcl_UtfToWCharDString(tempbuf, TCL_INDEX_NONE, &base); } while (!CreateDirectoryW((LPCWSTR) Tcl_DStringValue(&base), NULL) && (error = GetLastError()) == ERROR_ALREADY_EXISTS); /* * Check for other errors. The big ones are ERROR_PATH_NOT_FOUND and * ERROR_ACCESS_DENIED. */ if (error != ERROR_SUCCESS) { Tcl_WinConvertError(error); Tcl_DStringFree(&base); return NULL; } /* * We actually made the directory, so we're done! Report what we made back * as a (clean) Tcl_Obj. */ Tcl_DStringInit(&name); Tcl_WCharToUtfDString((LPCWSTR) Tcl_DStringValue(&base), TCL_INDEX_NONE, &name); Tcl_DStringFree(&base); return Tcl_DStringToObj(&name); } /* * Local Variables: * mode: c * c-basic-offset: 4 * fill-column: 78 * End: */