X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=glib%2Fgvariant-serialiser.c;h=5df7fc3ab45d7372ed68471d2e377f57c7f3d4d6;hb=30ed5f53e205e6bfc35126a9d3c62dac8a9c5dad;hp=d6d626e88cc9ff9d92005f4bfb5e9c399be5bf04;hpb=2e53e50244b85d7e0b5358d617fabc15e8ec8bd7;p=platform%2Fupstream%2Fglib.git
diff --git a/glib/gvariant-serialiser.c b/glib/gvariant-serialiser.c
index d6d626e..5df7fc3 100644
--- a/glib/gvariant-serialiser.c
+++ b/glib/gvariant-serialiser.c
@@ -13,9 +13,7 @@
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * License along with this library; if not, see .
*
* Author: Ryan Lortie
*/
@@ -83,13 +81,13 @@
* values is permitted (eg: 0 to 255 is a valid byte). Special checks
* need to be performed for booleans (only 0 or 1 allowed), strings
* (properly nul-terminated) and object paths and signature strings
- * (meeting the DBus specification requirements).
+ * (meeting the D-Bus specification requirements).
*/
/* < private >
* GVariantSerialised:
* @type_info: the #GVariantTypeInfo of this value
- * @data: the serialised data of this value, or %NULL
+ * @data: (allow-none): the serialised data of this value, or %NULL
* @size: the size of this value
*
* A structure representing a GVariant in serialised form. This
@@ -511,7 +509,7 @@ gvs_fixed_sized_array_is_normal (GVariantSerialised value)
* Variable sized arrays, containing variable-sized elements, must be
* able to determine the boundaries between the elements. The items
* cannot simply be concatenated. Additionally, we are faced with the
- * fact that non-fixed-sized values do not neccessarily have a size that
+ * fact that non-fixed-sized values do not necessarily have a size that
* is a multiple of their alignment requirement, so we may need to
* insert zero-filled padding.
*
@@ -552,6 +550,7 @@ gvs_fixed_sized_array_is_normal (GVariantSerialised value)
* normal form and that is the one that the serialiser must produce.
*/
+/* bytes may be NULL if (size == 0). */
static inline gsize
gvs_read_unaligned_le (guchar *bytes,
guint size)
@@ -563,7 +562,8 @@ gvs_read_unaligned_le (guchar *bytes,
} tmpvalue;
tmpvalue.integer = 0;
- memcpy (&tmpvalue.bytes, bytes, size);
+ if (bytes != NULL)
+ memcpy (&tmpvalue.bytes, bytes, size);
return GSIZE_FROM_LE (tmpvalue.integer);
}
@@ -862,7 +862,7 @@ gvs_tuple_get_child (GVariantSerialised value,
/* tuples are the only (potentially) fixed-sized containers, so the
* only ones that have to deal with the possibility of having %NULL
- * data with a non-zero %size if errors occured elsewhere.
+ * data with a non-zero %size if errors occurred elsewhere.
*/
if G_UNLIKELY (value.data == NULL && value.size != 0)
{
@@ -918,7 +918,7 @@ gvs_tuple_get_child (GVariantSerialised value,
child.size = fixed_size;
}
- else /* G_VARIANT_MEMEBER_ENDING_OFFSET */
+ else /* G_VARIANT_MEMBER_ENDING_OFFSET */
end = gvs_read_unaligned_le (value.data + value.size -
offset_size * (member_info->i + 2),
offset_size);
@@ -1023,6 +1023,10 @@ gvs_tuple_is_normal (GVariantSerialised value)
gsize offset;
gsize i;
+ /* as per the comment in gvs_tuple_get_child() */
+ if G_UNLIKELY (value.data == NULL && value.size != 0)
+ return FALSE;
+
offset_size = gvs_get_offset_size (value.size);
length = g_variant_type_info_n_members (value.type_info);
offset_ptr = value.size;
@@ -1300,11 +1304,12 @@ gvs_variant_is_normal (GVariantSerialised value)
/* < private >
* g_variant_serialised_n_children:
* @serialised: a #GVariantSerialised
- * @returns: the number of children
*
* For serialised data that represents a container value (maybes,
* tuples, arrays, variants), determine how many child items are inside
* that container.
+ *
+ * Returns: the number of children
*/
gsize
g_variant_serialised_n_children (GVariantSerialised serialised)
@@ -1323,7 +1328,6 @@ g_variant_serialised_n_children (GVariantSerialised serialised)
* g_variant_serialised_get_child:
* @serialised: a #GVariantSerialised
* @index_: the index of the child to fetch
- * @returns: a #GVariantSerialised for the child
*
* Extracts a child from a serialised data representing a container
* value.
@@ -1338,6 +1342,8 @@ g_variant_serialised_n_children (GVariantSerialised serialised)
* item of a variable-sized type is being returned.
*
* .data is never non-%NULL if size is 0.
+ *
+ * Returns: a #GVariantSerialised for the child
*/
GVariantSerialised
g_variant_serialised_get_child (GVariantSerialised serialised,
@@ -1544,6 +1550,9 @@ g_variant_serialised_is_normal (GVariantSerialised serialised)
)
+ if (serialised.data == NULL)
+ return FALSE;
+
/* some hard-coded terminal cases */
switch (g_variant_type_info_get_type_char (serialised.type_info))
{
@@ -1588,21 +1597,30 @@ gboolean
g_variant_serialiser_is_string (gconstpointer data,
gsize size)
{
+ const gchar *expected_end;
const gchar *end;
+ if (size == 0)
+ return FALSE;
+
+ expected_end = ((gchar *) data) + size - 1;
+
+ if (*expected_end != '\0')
+ return FALSE;
+
g_utf8_validate (data, size, &end);
- return data == end - (size - 1);
+ return end == expected_end;
}
/* < private >
* g_variant_serialiser_is_object_path:
- * @data: a possible DBus object path
+ * @data: a possible D-Bus object path
* @size: the size of @data
*
* Performs the checks for being a valid string.
*
- * Also, ensures that @data is a valid DBus object path, as per the DBus
+ * Also, ensures that @data is a valid DBus object path, as per the D-Bus
* specification.
*/
gboolean
@@ -1649,13 +1667,13 @@ g_variant_serialiser_is_object_path (gconstpointer data,
/* < private >
* g_variant_serialiser_is_signature:
- * @data: a possible DBus signature
+ * @data: a possible D-Bus signature
* @size: the size of @data
*
* Performs the checks for being a valid string.
*
- * Also, ensures that @data is a valid DBus type signature, as per the
- * DBus specification.
+ * Also, ensures that @data is a valid D-Bus type signature, as per the
+ * D-Bus specification.
*/
gboolean
g_variant_serialiser_is_signature (gconstpointer data,