diff --git a/tools/dbus-monitor.c b/tools/dbus-monitor.c index 1aa885f7..ff8390d7 100644 --- a/tools/dbus-monitor.c +++ b/tools/dbus-monitor.c @@ -367,26 +367,45 @@ main (int argc, char *argv[]) if (numFilters) { + size_t offset = 0; for (i = 0; i < j; i++) { - dbus_bus_add_match (connection, filters[i], &error); - if (dbus_error_is_set (&error)) + dbus_bus_add_match (connection, filters[i] + offset, &error); + if (dbus_error_is_set (&error) && i == 0 && offset == 0) + { + /* We might be talking to a pre-1.5.6 dbus-daemon + * which wouldn't understand eavesdrop=true. + * If this works, carry on with offset > 0 + * on the remaining iterations. */ + offset = strlen (EAVESDROPPING_RULE) + 1; + dbus_error_free (&error); + dbus_bus_add_match (connection, filters[i] + offset, &error); + } + + if (dbus_error_is_set (&error)) { fprintf (stderr, "Failed to setup match \"%s\": %s\n", filters[i], error.message); dbus_error_free (&error); exit (1); } - free(filters[i]); + free(filters[i]); } } else { dbus_bus_add_match (connection, - EAVESDROPPING_RULE, - &error); + EAVESDROPPING_RULE, + &error); if (dbus_error_is_set (&error)) - goto lose; + { + dbus_error_free (&error); + dbus_bus_add_match (connection, + "", + &error); + if (dbus_error_is_set (&error)) + goto lose; + } } if (!dbus_connection_add_filter (connection, filter_func, NULL, NULL)) {