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authorjan.nijtmans <nijtmans@users.sourceforge.net>2014-03-26 10:37:57 (GMT)
committerjan.nijtmans <nijtmans@users.sourceforge.net>2014-03-26 10:37:57 (GMT)
commit3b6523dd1f6ce2e08932508cf276ca55d04872e6 (patch)
tree8adb225a430045a8e9e9e52e0eaf6e0230324a9f
parent72ae8dccf119510f1b175a9a2243a87069cef308 (diff)
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Implementation of [b42b208ba4]: file attributes -readonly on Cygwin. For completeness, implemented -archive, -hidden and -system as well.
-rw-r--r--unix/tclUnixFCmd.c185
-rw-r--r--unix/tclUnixPort.h3
2 files changed, 174 insertions, 14 deletions
diff --git a/unix/tclUnixFCmd.c b/unix/tclUnixFCmd.c
index e270b6a..259c7e5 100644
--- a/unix/tclUnixFCmd.c
+++ b/unix/tclUnixFCmd.c
@@ -91,10 +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
@@ -124,10 +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,
@@ -137,10 +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
@@ -149,11 +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},
@@ -2246,11 +2275,139 @@ DefaultTempDir(void)
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 *
+winPathFromNative(
+ const char *native)
+{
+ int size;
+ 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;
+ const char *native = Tcl_FSGetNativePath(fileName);
+ WCHAR *winPath = winPathFromNative(native);
+
+ 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;
+ const char *native;
+ WCHAR *winPath;
+
+ if (Tcl_GetBooleanFromObj(interp, attributePtr, &yesNo) != TCL_OK) {
+ return TCL_ERROR;
+ }
+
+ native = Tcl_FSGetNativePath(fileName);
+ winPath = winPathFromNative(native);
+
+ fileAttributes = GetFileAttributesW(winPath);
+
+ if (fileAttributes == -1) {
+ ckfree(winPath);
+ StatError(interp, fileName);
+ return TCL_ERROR;
+ }
+
+ if (yesNo) {
+ fileAttributes |= attributeArray[objIndex];
+ } else {
+ fileAttributes &= ~attributeArray[objIndex];
+ }
+
+ if (!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.
*
@@ -2265,7 +2422,7 @@ 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). */
@@ -2293,7 +2450,7 @@ GetReadOnlyAttribute(
/*
*---------------------------------------------------------------------------
*
- * SetReadOnlyAttribute
+ * SetUnixFileAttributes
*
* Sets the readonly attribute (user immutable flag) of a file.
*
@@ -2307,7 +2464,7 @@ 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). */
diff --git a/unix/tclUnixPort.h b/unix/tclUnixPort.h
index 2ade1c0..f64d453 100644
--- a/unix/tclUnixPort.h
+++ b/unix/tclUnixPort.h
@@ -93,6 +93,9 @@ typedef off_t Tcl_SeekOffset;
WCHAR *, int);
__declspec(dllimport) extern __stdcall void OutputDebugStringW(const WCHAR *);
__declspec(dllimport) extern __stdcall int IsDebuggerPresent();
+ __declspec(dllimport) extern __stdcall int GetLastError();
+ __declspec(dllimport) extern __stdcall int GetFileAttributesW(const WCHAR *);
+ __declspec(dllimport) extern __stdcall int SetFileAttributesW(const WCHAR *, int);
__declspec(dllimport) extern int cygwin_conv_path(int, const void *, void *, int);
__declspec(dllimport) extern int cygwin_conv_path_list(int, const void *, void *, int);