diff options
Diffstat (limited to 'win/tclWinFCmd.c')
| -rw-r--r-- | win/tclWinFCmd.c | 1968 |
1 files changed, 1968 insertions, 0 deletions
diff --git a/win/tclWinFCmd.c b/win/tclWinFCmd.c new file mode 100644 index 0000000..52ea8c6 --- /dev/null +++ b/win/tclWinFCmd.c @@ -0,0 +1,1968 @@ +/* + * 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. + */ + +#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", (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)(const TCHAR *srcPtr, const TCHAR *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 TCHAR *srcPtr, const TCHAR *dstPtr); +static int DoCreateDirectory(const TCHAR *pathPtr); +static int DoRemoveJustDirectory(const TCHAR *nativeSrc, + int ignoreError, Tcl_DString *errorPtr); +static int DoRemoveDirectory(Tcl_DString *pathPtr, int recursive, + Tcl_DString *errorPtr); +static int DoRenameFile(const TCHAR *nativeSrc, + const TCHAR *dstPtr); +static int TraversalCopy(const TCHAR *srcPtr, const TCHAR *dstPtr, + int type, Tcl_DString *errorPtr); +static int TraversalDelete(const TCHAR *srcPtr, + const TCHAR *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(Tcl_FSGetNativePath(srcPathPtr), + Tcl_FSGetNativePath(destPathPtr)); +} + +static int +DoRenameFile( + const TCHAR *nativeSrc, /* Pathname of file or dir to be renamed + * (native). */ + const TCHAR *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 MoveFile(nativeSrc, nativeDst) + */ + + "pushl %%ebx" "\n\t" + "pushl %%ecx" "\n\t" + "movl %[moveFile], %%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), + [moveFile] "r" (MoveFile) + : + "%eax", "%ebx", "%ecx", "%edx", "memory" + ); + if (registration.status != FALSE) { + retval = TCL_OK; + } +#else +#ifndef HAVE_NO_SEH + __try { +#endif + if ((*MoveFile)(nativeSrc, nativeDst) != FALSE) { + retval = TCL_OK; + } +#ifndef HAVE_NO_SEH + } __except (EXCEPTION_EXECUTE_HANDLER) {} +#endif +#endif + + if (retval != -1) { + return retval; + } + + TclWinConvertError(GetLastError()); + + srcAttr = GetFileAttributes(nativeSrc); + dstAttr = GetFileAttributes(nativeDst); + if (srcAttr == 0xffffffff) { + if (GetFullPathName(nativeSrc, 0, NULL, + NULL) >= MAX_PATH) { + errno = ENAMETOOLONG; + return TCL_ERROR; + } + srcAttr = 0; + } + if (dstAttr == 0xffffffff) { + if (GetFullPathName(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; + const char **srcArgv, **dstArgv; + int size, srcArgc, dstArgc; + TCHAR nativeSrcPath[MAX_PATH]; + TCHAR nativeDstPath[MAX_PATH]; + Tcl_DString srcString, dstString; + const char *src, *dst; + + size = GetFullPathName(nativeSrc, MAX_PATH, + nativeSrcPath, &nativeSrcRest); + if ((size == 0) || (size > MAX_PATH)) { + return TCL_ERROR; + } + size = GetFullPathName(nativeDst, MAX_PATH, + nativeDstPath, &nativeDstRest); + if ((size == 0) || (size > MAX_PATH)) { + return TCL_ERROR; + } + CharLower(nativeSrcPath); + CharLower(nativeDstPath); + + src = Tcl_WinTCharToUtf(nativeSrcPath, -1, &srcString); + dst = Tcl_WinTCharToUtf(nativeDstPath, -1, &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, (size_t) 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); + } + + ckfree(srcArgv); + ckfree(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 (MoveFile(nativeSrc, + nativeDst) != FALSE) { + return TCL_OK; + } + + /* + * Some new error has occurred. Don't know what it could + * be, but report this one. + */ + + TclWinConvertError(GetLastError()); + CreateDirectory(nativeDst, NULL); + SetFileAttributes(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; + TCHAR tempBuf[MAX_PATH]; + + size = GetFullPathName(nativeDst, MAX_PATH, + tempBuf, &nativeRest); + if ((size == 0) || (size > MAX_PATH) || (nativeRest == NULL)) { + return TCL_ERROR; + } + nativeTmp = (TCHAR *) tempBuf; + nativeRest[0] = L'\0'; + + result = TCL_ERROR; + nativePrefix = (TCHAR *) L"tclr"; + if (GetTempFileName(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; + DeleteFile(nativeTmp); + if (MoveFile(nativeDst, nativeTmp) != FALSE) { + if (MoveFile(nativeSrc, nativeDst) != FALSE) { + SetFileAttributes(nativeTmp, FILE_ATTRIBUTE_NORMAL); + DeleteFile(nativeTmp); + return TCL_OK; + } else { + DeleteFile(nativeDst); + MoveFile(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; +} + +/* + *--------------------------------------------------------------------------- + * + * 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(Tcl_FSGetNativePath(srcPathPtr), + Tcl_FSGetNativePath(destPathPtr)); +} + +static int +DoCopyFile( + const TCHAR *nativeSrc, /* Pathname of file to be copied (native). */ + const TCHAR *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 CopyFile(nativeSrc, nativeDst, 0) + */ + + "movl %[copyFile], %%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), + [copyFile] "r" (CopyFile) + : + "%eax", "%ebx", "%ecx", "%edx", "memory" + ); + if (registration.status != FALSE) { + retval = TCL_OK; + } +#else +#ifndef HAVE_NO_SEH + __try { +#endif + if (CopyFile(nativeSrc, nativeDst, 0) != FALSE) { + retval = TCL_OK; + } +#ifndef HAVE_NO_SEH + } __except (EXCEPTION_EXECUTE_HANDLER) {} +#endif +#endif + + if (retval != -1) { + return retval; + } + + TclWinConvertError(GetLastError()); + if (Tcl_GetErrno() == EBADF) { + Tcl_SetErrno(EACCES); + return TCL_ERROR; + } + if (Tcl_GetErrno() == EACCES) { + DWORD srcAttr, dstAttr; + + srcAttr = GetFileAttributes(nativeSrc); + dstAttr = GetFileAttributes(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) { + SetFileAttributes(nativeDst, + dstAttr & ~((DWORD)FILE_ATTRIBUTE_READONLY)); + if (CopyFile(nativeSrc, nativeDst, + 0) != FALSE) { + return TCL_OK; + } + + /* + * Still can't copy onto dst. Return that error, and restore + * attributes of dst. + */ + + TclWinConvertError(GetLastError()); + SetFileAttributes(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 TCHAR *path = 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 (DeleteFile(path) != FALSE) { + return TCL_OK; + } + TclWinConvertError(GetLastError()); + + if (Tcl_GetErrno() == EACCES) { + attr = GetFileAttributes(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 = SetFileAttributes(path, + attr & ~((DWORD) FILE_ATTRIBUTE_READONLY)); + + if ((res != 0) && + (DeleteFile(path) != FALSE)) { + return TCL_OK; + } + TclWinConvertError(GetLastError()); + if (res != 0) { + SetFileAttributes(path, attr); + } + } + } + } else if (Tcl_GetErrno() == ENOENT) { + attr = GetFileAttributes(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(Tcl_FSGetNativePath(pathPtr)); +} + +static int +DoCreateDirectory( + const TCHAR *nativePath) /* Pathname of directory to create (native). */ +{ + if (CreateDirectory(nativePath, NULL) == 0) { + DWORD error = GetLastError(); + + TclWinConvertError(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 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_WinUtfToTChar(Tcl_GetString(normSrcPtr), -1, &srcString); + Tcl_WinUtfToTChar(Tcl_GetString(normDestPtr), -1, &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_NewStringObj(Tcl_DStringValue(&ds), -1); + } + 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_WinUtfToTChar(Tcl_GetString(normPtr), -1, &native); + ret = DoRemoveDirectory(&native, recursive, &ds); + Tcl_DStringFree(&native); + } else { + ret = DoRemoveJustDirectory(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 = TclDStringToObj(&ds); + } + Tcl_IncrRefCount(*errorPtr); + } + Tcl_DStringFree(&ds); + } + + return ret; +} + +static int +DoRemoveJustDirectory( + const TCHAR *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); + goto end; + } + + attr = GetFileAttributes(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 (RemoveDirectory(nativePath) != FALSE) { + return TCL_OK; + } + } + + TclWinConvertError(GetLastError()); + + if (Tcl_GetErrno() == EACCES) { + attr = GetFileAttributes(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 (SetFileAttributes(nativePath, + attr) == FALSE) { + goto end; + } + if (RemoveDirectory(nativePath) != FALSE) { + return TCL_OK; + } + TclWinConvertError(GetLastError()); + SetFileAttributes(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_WinTCharToUtf(nativePath, -1, errorPtr); + p = Tcl_DStringValue(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 TCHAR *)Tcl_DStringValue(pathPtr), recursive, + errorPtr); + + if ((res == TCL_ERROR) && (recursive != 0) && (Tcl_GetErrno() == EEXIST)) { + /* + * The directory is nonempty, but the recursive flag has been + * specified, so we recursively remove all the files in the directory. + */ + + return TraverseWinTree(TraversalDelete, pathPtr, NULL, errorPtr); + } else { + return res; + } +} + +/* + *--------------------------------------------------------------------------- + * + * TraverseWinTree -- + * + * Traverse directory tree specified by sourcePtr, calling the function + * traverseProc for each file and directory encountered. If destPtr is + * non-null, each of name in the sourcePtr directory is appended to the + * directory specified by destPtr and passed as the second argument to + * traverseProc(). + * + * Results: + * Standard Tcl result. + * + * Side effects: + * None caused by TraverseWinTree, however the user specified + * traverseProc() may change state. If an error occurs, the error will be + * returned immediately, and remaining files will not be processed. + * + *--------------------------------------------------------------------------- + */ + +static int +TraverseWinTree( + TraversalProc *traverseProc,/* Function to call for every file and + * directory in source hierarchy. */ + Tcl_DString *sourcePtr, /* Pathname of source directory to be + * traversed (native). */ + Tcl_DString *targetPtr, /* Pathname of directory to traverse in + * parallel with source directory (native), + * may be NULL. */ + Tcl_DString *errorPtr) /* If non-NULL, uninitialized or free DString + * filled with UTF-8 name of file causing + * error. */ +{ + DWORD sourceAttr; + TCHAR *nativeSource, *nativeTarget, *nativeErrfile; + int result, found, sourceLen, targetLen = 0, oldSourceLen, oldTargetLen; + HANDLE handle; + WIN32_FIND_DATA data; + + nativeErrfile = NULL; + result = TCL_OK; + oldTargetLen = 0; /* lint. */ + + nativeSource = (TCHAR *) Tcl_DStringValue(sourcePtr); + nativeTarget = (TCHAR *) + (targetPtr == NULL ? NULL : Tcl_DStringValue(targetPtr)); + + oldSourceLen = Tcl_DStringLength(sourcePtr); + sourceAttr = GetFileAttributes(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 *) TEXT("\\*.*"), 4 * sizeof(TCHAR) + 1); + Tcl_DStringSetLength(sourcePtr, Tcl_DStringLength(sourcePtr) - 1); + + nativeSource = (TCHAR *) Tcl_DStringValue(sourcePtr); + handle = FindFirstFile(nativeSource, &data); + if (handle == INVALID_HANDLE_VALUE) { + /* + * Can't read directory. + */ + + TclWinConvertError(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(TCHAR); + Tcl_DStringAppend(sourcePtr, (char *) TEXT("\\"), sizeof(TCHAR) + 1); + Tcl_DStringSetLength(sourcePtr, sourceLen); + if (targetPtr != NULL) { + oldTargetLen = Tcl_DStringLength(targetPtr); + + targetLen = oldTargetLen; + targetLen += sizeof(TCHAR); + Tcl_DStringAppend(targetPtr, (char *) TEXT("\\"), sizeof(TCHAR) + 1); + Tcl_DStringSetLength(targetPtr, targetLen); + } + + found = 1; + for (; found; found = FindNextFile(handle, &data)) { + TCHAR *nativeName; + int len; + + TCHAR *wp = data.cFileName; + if (*wp == '.') { + wp++; + if (*wp == '.') { + wp++; + } + if (*wp == '\0') { + continue; + } + } + nativeName = (TCHAR *) data.cFileName; + len = _tcslen(data.cFileName) * sizeof(TCHAR); + + /* + * 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 TCHAR *)Tcl_DStringValue(sourcePtr), + (const TCHAR *)(targetPtr == NULL ? NULL : Tcl_DStringValue(targetPtr)), + DOTREE_POSTD, errorPtr); + } + + end: + if (nativeErrfile != NULL) { + TclWinConvertError(GetLastError()); + if (errorPtr != NULL) { + Tcl_WinTCharToUtf(nativeErrfile, -1, errorPtr); + } + result = TCL_ERROR; + } + + return result; +} + +/* + *---------------------------------------------------------------------- + * + * TraversalCopy + * + * Called from TraverseUnixTree in order to execute a recursive copy of a + * directory. + * + * Results: + * Standard Tcl result. + * + * Side effects: + * Depending on the value of type, src may be copied to dst. + * + *---------------------------------------------------------------------- + */ + +static int +TraversalCopy( + const TCHAR *nativeSrc, /* Source pathname to copy. */ + const TCHAR *nativeDst, /* Destination pathname of copy. */ + int type, /* Reason for call - see TraverseWinTree() */ + Tcl_DString *errorPtr) /* If non-NULL, initialized DString filled + * with UTF-8 name of file causing error. */ +{ + switch (type) { + case DOTREE_F: + if (DoCopyFile(nativeSrc, nativeDst) == TCL_OK) { + return TCL_OK; + } + break; + case DOTREE_LINK: + if (TclWinSymLinkCopyDirectory(nativeSrc, nativeDst) == TCL_OK) { + return TCL_OK; + } + break; + case DOTREE_PRED: + if (DoCreateDirectory(nativeDst) == TCL_OK) { + DWORD attr = GetFileAttributes(nativeSrc); + + if (SetFileAttributes(nativeDst, + attr) != FALSE) { + return TCL_OK; + } + TclWinConvertError(GetLastError()); + } + break; + case DOTREE_POSTD: + return TCL_OK; + } + + /* + * There shouldn't be a problem with src, because we already checked it to + * get here. + */ + + if (errorPtr != NULL) { + Tcl_WinTCharToUtf(nativeDst, -1, errorPtr); + } + return TCL_ERROR; +} + +/* + *---------------------------------------------------------------------- + * + * TraversalDelete -- + * + * Called by 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 TCHAR *nativeSrc, /* Source pathname to delete. */ + const TCHAR *dstPtr, /* Not used. */ + int type, /* Reason for call - see TraverseWinTree() */ + Tcl_DString *errorPtr) /* If non-NULL, initialized DString filled + * with UTF-8 name of file causing error. */ +{ + switch (type) { + case DOTREE_F: + if (TclpDeleteFile(nativeSrc) == TCL_OK) { + return TCL_OK; + } + break; + case DOTREE_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_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 */ + Tcl_Obj *fileName) /* The name of the file which caused the + * error. */ +{ + TclWinConvertError(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 TCHAR *nativeName; + int attr; + + nativeName = Tcl_FSGetNativePath(fileName); + result = GetFileAttributes(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. + */ + + int len; + const char *str = Tcl_GetStringFromObj(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; + } + } + } + + *attributePtrPtr = Tcl_NewBooleanObj(attr); + 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. */ + int objIndex, /* The index of the attribute. */ + 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. */ +{ + int pathc, i; + 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", + Tcl_GetString(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; + int pathLen; + + Tcl_ListObjIndex(NULL, splitPath, i, &elt); + + pathv = Tcl_GetStringFromObj(elt, &pathLen); + if ((pathv[0] == '/') || ((pathLen == 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 TCHAR *nativeName; + const char *tempString; + int tempLen; + WIN32_FIND_DATA 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. + */ + + Tcl_DStringInit(&ds); + tempString = Tcl_GetStringFromObj(tempPath,&tempLen); + nativeName = Tcl_WinUtfToTChar(tempString, tempLen, &ds); + Tcl_DecrRefCount(tempPath); + handle = FindFirstFile(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 = GetFileAttributes(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 = (TCHAR *) data.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_DStringInit(&dsTemp); + Tcl_WinTCharToUtf(nativeName, -1, &dsTemp); + Tcl_DStringFree(&ds); + + /* + * Deal with issues of tildes being absolute. + */ + + if (Tcl_DStringValue(&dsTemp)[0] == '~') { + TclNewLiteralStringObj(tempPath, "./"); + Tcl_AppendToObj(tempPath, Tcl_DStringValue(&dsTemp), + Tcl_DStringLength(&dsTemp)); + Tcl_DStringFree(&dsTemp); + } else { + tempPath = TclDStringToObj(&dsTemp); + } + Tcl_ListObjReplace(NULL, splitPath, i, 1, 1, &tempPath); + FindClose(handle); + } + } + + *attributePtrPtr = Tcl_FSJoinPath(splitPath, -1); + + 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 TCHAR *nativeName; + + nativeName = Tcl_FSGetNativePath(fileName); + fileAttributes = old = GetFileAttributes(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) + && !SetFileAttributes(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_Obj *attributePtr) /* The new value of the attribute. */ +{ + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "cannot set attribute \"%s\" for file \"%s\": attribute is readonly", + tclpFileAttrStrings[objIndex], Tcl_GetString(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; + + resultPtr = Tcl_NewObj(); + + /* + * 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); + } + } + + Tcl_IncrRefCount(resultPtr); + return resultPtr; +} + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |