fix buffer overflow printing tempo/meter

diff --git a/gtk2_ardour/audio_clock.cc b/gtk2_ardour/audio_clock.cc
index a657916b6d4dc40df0b6d0377e56470bbefd2a1b..a453b80d16c9a06679d1edd01eff271b067a0118 100644 (file)
--- a/gtk2_ardour/audio_clock.cc
+++ b/gtk2_ardour/audio_clock.cc
@@ -1228,7 +1228,7 @@ AudioClock::set_timecode (framepos_t when, bool /*force*/)
 void
 AudioClock::set_bbt (framepos_t when, framecnt_t offset, bool /*force*/)
 {
-       char buf[16];
+       char buf[64];
        Timecode::BBT_Time BBT;
        bool negative = false;
 
@@ -1316,12 +1316,12 @@ AudioClock::set_bbt (framepos_t when, framecnt_t offset, bool /*force*/)
 
                TempoMetric m (_session->tempo_map().metric_at (pos));
 
-               sprintf (buf, "%-5.3f/%f", _session->tempo_map().tempo_at_frame (pos).note_types_per_minute(), m.tempo().note_type());
+               snprintf (buf, sizeof(buf), "%-5.3f/%f", _session->tempo_map().tempo_at_frame (pos).note_types_per_minute(), m.tempo().note_type());
                /* XXX this doesn't fit inside the container. */
                _left_layout->set_markup (string_compose ("<span size=\"%1\">" TXTSPAN "%3</span> <span foreground=\"green\">%2</span></span>",
                                                          INFO_FONT_SIZE, buf, _("Tempo")));
 
-               sprintf (buf, "%g/%g", m.meter().divisions_per_bar(), m.meter().note_divisor());
+               snprintf (buf, sizeof(buf), "%g/%g", m.meter().divisions_per_bar(), m.meter().note_divisor());
                _right_layout->set_markup (string_compose ("<span size=\"%1\">" TXTSPAN "%3</span> <span foreground=\"green\">%2</span></span>",
                                                           INFO_FONT_SIZE, buf, _("Meter")));
        }