diff options
Diffstat (limited to 'unix/tclUnixFCmd.c')
| -rw-r--r-- | unix/tclUnixFCmd.c | 248 |
1 files changed, 220 insertions, 28 deletions
diff --git a/unix/tclUnixFCmd.c b/unix/tclUnixFCmd.c index d3cc6bf..3b1b6ca 100644 --- a/unix/tclUnixFCmd.c +++ b/unix/tclUnixFCmd.c @@ -62,6 +62,16 @@ #define DOTREE_F 3 /* regular file */ /* + * Fallback temporary file location the temporary file generation code. Can be + * overridden at compile time for when it is known that temp files can't be + * written to /tmp (hello, iOS!). + */ + +#ifndef TCL_TEMPORARY_FILE_DIRECTORY +#define TCL_TEMPORARY_FILE_DIRECTORY "/tmp" +#endif + +/* * Callbacks for file attributes code. */ @@ -81,10 +91,10 @@ static int SetPermissionsAttribute(Tcl_Interp *interp, Tcl_Obj *attributePtr); static int GetModeFromPermString(Tcl_Interp *interp, const char *modeStringPtr, mode_t *modePtr); -#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE) -static int GetReadOnlyAttribute(Tcl_Interp *interp, int objIndex, +#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE) || defined(__CYGWIN__) +static int GetUnixFileAttributes(Tcl_Interp *interp, int objIndex, Tcl_Obj *fileName, Tcl_Obj **attributePtrPtr); -static int SetReadOnlyAttribute(Tcl_Interp *interp, int objIndex, +static int SetUnixFileAttributes(Tcl_Interp *interp, int objIndex, Tcl_Obj *fileName, Tcl_Obj *attributePtr); #endif @@ -114,10 +124,20 @@ extern const char *const tclpFileAttrStrings[]; #else /* !DJGPP */ enum { - UNIX_GROUP_ATTRIBUTE, UNIX_OWNER_ATTRIBUTE, UNIX_PERMISSIONS_ATTRIBUTE, -#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE) +#if defined(__CYGWIN__) + UNIX_ARCHIVE_ATTRIBUTE, +#endif + UNIX_GROUP_ATTRIBUTE, +#if defined(__CYGWIN__) + UNIX_HIDDEN_ATTRIBUTE, +#endif + UNIX_OWNER_ATTRIBUTE, UNIX_PERMISSIONS_ATTRIBUTE, +#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE) || defined(__CYGWIN__) UNIX_READONLY_ATTRIBUTE, #endif +#if defined(__CYGWIN__) + UNIX_SYSTEM_ATTRIBUTE, +#endif #ifdef MAC_OSX_TCL MACOSX_CREATOR_ATTRIBUTE, MACOSX_TYPE_ATTRIBUTE, MACOSX_HIDDEN_ATTRIBUTE, MACOSX_RSRCLENGTH_ATTRIBUTE, @@ -127,10 +147,20 @@ enum { MODULE_SCOPE const char *const tclpFileAttrStrings[]; const char *const tclpFileAttrStrings[] = { - "-group", "-owner", "-permissions", -#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE) +#if defined(__CYGWIN__) + "-archive", +#endif + "-group", +#if defined(__CYGWIN__) + "-hidden", +#endif + "-owner", "-permissions", +#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE) || defined(__CYGWIN__) "-readonly", #endif +#if defined(__CYGWIN__) + "-system", +#endif #ifdef MAC_OSX_TCL "-creator", "-type", "-hidden", "-rsrclength", #endif @@ -139,11 +169,20 @@ const char *const tclpFileAttrStrings[] = { MODULE_SCOPE const TclFileAttrProcs tclpFileAttrProcs[]; const TclFileAttrProcs tclpFileAttrProcs[] = { +#if defined(__CYGWIN__) + {GetUnixFileAttributes, SetUnixFileAttributes}, +#endif {GetGroupAttribute, SetGroupAttribute}, +#if defined(__CYGWIN__) + {GetUnixFileAttributes, SetUnixFileAttributes}, +#endif {GetOwnerAttribute, SetOwnerAttribute}, {GetPermissionsAttribute, SetPermissionsAttribute}, -#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE) - {GetReadOnlyAttribute, SetReadOnlyAttribute}, +#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE) || defined(__CYGWIN__) + {GetUnixFileAttributes, SetUnixFileAttributes}, +#endif +#if defined(__CYGWIN__) + {GetUnixFileAttributes, SetUnixFileAttributes}, #endif #ifdef MAC_OSX_TCL {TclMacOSXGetFileAttribute, TclMacOSXSetFileAttribute}, @@ -234,7 +273,7 @@ MODULE_SCOPE long tclMacOSXDarwinRelease; #endif /* NO_REALPATH */ #ifdef HAVE_FTS -#ifdef HAVE_STRUCT_STAT64 +#if defined(HAVE_STRUCT_STAT64) && !defined(__APPLE__) /* fts doesn't do stat64 */ # define noFtsStat 1 #elif defined(__APPLE__) && defined(__LP64__) && \ @@ -452,10 +491,10 @@ DoCopyFile( switch ((int) (statBufPtr->st_mode & S_IFMT)) { #ifndef DJGPP case S_IFLNK: { - char linkBuf[MAXPATHLEN]; + char linkBuf[MAXPATHLEN+1]; int length; - length = readlink(src, linkBuf, sizeof(linkBuf)); + length = readlink(src, linkBuf, MAXPATHLEN); /* INTL: Native. */ if (length == -1) { return TCL_ERROR; @@ -2093,7 +2132,7 @@ TclpObjNormalizePath( /* *---------------------------------------------------------------------- * - * TclpOpenTemporaryFile -- + * TclpOpenTemporaryFile, TclUnixOpenTemporaryFile -- * * Creates a temporary file, possibly based on the supplied bits and * pieces of template supplied in the first three arguments. If the @@ -2103,7 +2142,12 @@ TclpObjNormalizePath( * file to go away once it is no longer needed. * * Results: - * A read-write Tcl Channel open on the file. + * A read-write Tcl Channel open on the file for TclpOpenTemporaryFile, + * or a file descriptor (or -1 on failure) for TclUnixOpenTemporaryFile. + * + * Side effects: + * Accesses the filesystem. Will set the contents of the Tcl_Obj fourth + * argument (if that is non-NULL). * *---------------------------------------------------------------------- */ @@ -2115,11 +2159,30 @@ TclpOpenTemporaryFile( Tcl_Obj *extensionObj, Tcl_Obj *resultingNameObj) { - Tcl_Channel chan; + int fd = TclUnixOpenTemporaryFile(dirObj, basenameObj, extensionObj, + resultingNameObj); + + if (fd == -1) { + return NULL; + } + return Tcl_MakeFileChannel(INT2PTR(fd), TCL_READABLE|TCL_WRITABLE); +} + +int +TclUnixOpenTemporaryFile( + Tcl_Obj *dirObj, + Tcl_Obj *basenameObj, + Tcl_Obj *extensionObj, + Tcl_Obj *resultingNameObj) +{ Tcl_DString template, tmp; const char *string; int len, fd; + /* + * We should also check against making more then TMP_MAX of these. + */ + if (dirObj) { string = Tcl_GetStringFromObj(dirObj, &len); Tcl_UtfToExternalDString(NULL, string, len, &template); @@ -2155,9 +2218,10 @@ TclpOpenTemporaryFile( } if (fd == -1) { - return NULL; + Tcl_DStringFree(&template); + return -1; } - chan = Tcl_MakeFileChannel(INT2PTR(fd), TCL_READABLE|TCL_WRITABLE); + if (resultingNameObj) { Tcl_ExternalToUtfDString(NULL, Tcl_DStringValue(&template), Tcl_DStringLength(&template), &tmp); @@ -2176,7 +2240,7 @@ TclpOpenTemporaryFile( } Tcl_DStringFree(&template); - return chan; + return fd; } /* @@ -2191,30 +2255,158 @@ DefaultTempDir(void) dir = getenv("TMPDIR"); if (dir && dir[0] && stat(dir, &buf) == 0 && S_ISDIR(buf.st_mode) - && access(dir, W_OK)) { + && access(dir, W_OK) == 0) { return dir; } #ifdef P_tmpdir dir = P_tmpdir; - if (stat(dir, &buf) == 0 && S_ISDIR(buf.st_mode) && access(dir, W_OK)) { + if (stat(dir, &buf)==0 && S_ISDIR(buf.st_mode) && access(dir, W_OK)==0) { return dir; } #endif /* - * Assume that "/tmp" is always an existing writable directory; we've no - * recovery mechanism if it isn't. + * Assume that the default location ("/tmp" if not overridden) is always + * an existing writable directory; we've no recovery mechanism if it + * isn't. */ - return "/tmp"; + return TCL_TEMPORARY_FILE_DIRECTORY; } -#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE) +#if defined(__CYGWIN__) + +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))); +} + +static WCHAR * +winPathFromObj( + Tcl_Obj *fileName) +{ + int size; + const char *native = Tcl_FSGetNativePath(fileName); + WCHAR *winPath; + + size = cygwin_conv_path(1, native, NULL, 0); + winPath = ckalloc(size); + cygwin_conv_path(1, native, winPath, size); + + return winPath; +} + +static const int attributeArray[] = { + 0x20, 0, 2, 0, 0, 1, 4}; + +/* + *---------------------------------------------------------------------- + * + * GetUnixFileAttributes + * + * Gets the readonly attribute of a file. + * + * Results: + * Standard TCL result. Returns a new Tcl_Obj in attributePtrPtr if there + * is no error. The object will have ref count 0. + * + * Side effects: + * A new object is allocated. + * + *---------------------------------------------------------------------- + */ + +static int +GetUnixFileAttributes( + 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 (UTF-8). */ + Tcl_Obj **attributePtrPtr) /* A pointer to return the object with. */ +{ + int fileAttributes; + WCHAR *winPath = winPathFromObj(fileName); + + fileAttributes = GetFileAttributesW(winPath); + ckfree(winPath); + + if (fileAttributes == -1) { + StatError(interp, fileName); + return TCL_ERROR; + } + + *attributePtrPtr = Tcl_NewIntObj((fileAttributes&attributeArray[objIndex])!=0); + + return TCL_OK; +} + +/* + *--------------------------------------------------------------------------- + * + * SetUnixFileAttributes + * + * Sets the readonly attribute of a file. + * + * Results: + * Standard TCL result. + * + * Side effects: + * The readonly attribute of the file is changed. + * + *--------------------------------------------------------------------------- + */ + +static int +SetUnixFileAttributes( + 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 (UTF-8). */ + Tcl_Obj *attributePtr) /* The attribute to set. */ +{ + int yesNo, fileAttributes, old; + WCHAR *winPath; + + if (Tcl_GetBooleanFromObj(interp, attributePtr, &yesNo) != TCL_OK) { + return TCL_ERROR; + } + + winPath = winPathFromObj(fileName); + + fileAttributes = old = GetFileAttributesW(winPath); + + if (fileAttributes == -1) { + ckfree(winPath); + StatError(interp, fileName); + return TCL_ERROR; + } + + if (yesNo) { + fileAttributes |= attributeArray[objIndex]; + } else { + fileAttributes &= ~attributeArray[objIndex]; + } + + if ((fileAttributes != old) + && !SetFileAttributesW(winPath, fileAttributes)) { + ckfree(winPath); + StatError(interp, fileName); + return TCL_ERROR; + } + + ckfree(winPath); + return TCL_OK; +} +#elif defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE) /* *---------------------------------------------------------------------- * - * GetReadOnlyAttribute + * GetUnixFileAttributes * * Gets the readonly attribute (user immutable flag) of a file. * @@ -2229,7 +2421,7 @@ DefaultTempDir(void) */ static int -GetReadOnlyAttribute( +GetUnixFileAttributes( 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 (UTF-8). */ @@ -2257,7 +2449,7 @@ GetReadOnlyAttribute( /* *--------------------------------------------------------------------------- * - * SetReadOnlyAttribute + * SetUnixFileAttributes * * Sets the readonly attribute (user immutable flag) of a file. * @@ -2271,7 +2463,7 @@ GetReadOnlyAttribute( */ static int -SetReadOnlyAttribute( +SetUnixFileAttributes( 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 (UTF-8). */ |