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-rw-r--r--dbus/dbus-message.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/dbus/dbus-message.c b/dbus/dbus-message.c
index 62b042e1..b7b5afca 100644
--- a/dbus/dbus-message.c
+++ b/dbus/dbus-message.c
@@ -4000,6 +4000,7 @@ dbus_message_marshal (DBusMessage *msg,
int *len_p)
{
DBusString tmp;
+ dbus_bool_t was_locked;
_dbus_return_val_if_fail (msg != NULL, FALSE);
_dbus_return_val_if_fail (marshalled_data_p != NULL, FALSE);
@@ -4008,6 +4009,12 @@ dbus_message_marshal (DBusMessage *msg,
if (!_dbus_string_init (&tmp))
return FALSE;
+ /* Ensure the message is locked, to ensure the length header is filled in. */
+ was_locked = msg->locked;
+
+ if (!was_locked)
+ dbus_message_lock (msg);
+
if (!_dbus_string_copy (&(msg->header.data), 0, &tmp, 0))
goto fail;
@@ -4022,10 +4029,18 @@ dbus_message_marshal (DBusMessage *msg,
goto fail;
_dbus_string_free (&tmp);
+
+ if (!was_locked)
+ msg->locked = FALSE;
+
return TRUE;
fail:
_dbus_string_free (&tmp);
+
+ if (!was_locked)
+ msg->locked = FALSE;
+
return FALSE;
}