client: Fix writing attribute values
Attribute values is not copied with dbus_message_iter_get_fixed_array,
so gatt write callback needs to replace old value with reallocation and
copy.
diff --git a/client/gatt.c b/client/gatt.c
index 7103c4f..7d63c02 100644
--- a/client/gatt.c
+++ b/client/gatt.c
@@ -1588,12 +1588,26 @@
static int parse_value_arg(DBusMessageIter *iter, uint8_t **value, int *len)
{
DBusMessageIter array;
+ uint16_t offset = 0;
+ uint8_t *read_value;
+ int read_len;
if (dbus_message_iter_get_arg_type(iter) != DBUS_TYPE_ARRAY)
return -EINVAL;
dbus_message_iter_recurse(iter, &array);
- dbus_message_iter_get_fixed_array(&array, value, len);
+ dbus_message_iter_get_fixed_array(&array, &read_value, &read_len);
+
+ dbus_message_iter_next(iter);
+ if (parse_options(iter, &offset, NULL, NULL, NULL))
+ return -EINVAL;
+
+ if ((offset + read_len) > *len) {
+ *len = offset + read_len;
+ *value = g_realloc(*value, *len);
+ }
+
+ memcpy(*value + offset, read_value, read_len);
return 0;
}
