diff options
| author | Alfred E. Heggestad <aeh@db.org> | 2016-08-13 19:11:34 +0200 |
|---|---|---|
| committer | Alfred E. Heggestad <aeh@db.org> | 2016-08-13 19:11:34 +0200 |
| commit | f8ffc1b1d7790cf56cb7f766104243186d990a3a (patch) | |
| tree | 04d09200b0093872000ad36104214575abb1f741 /src/audio.c | |
| parent | cf64bac11989e8b2f13e1a6f8bb7cb2b579a44e1 (diff) | |
audio: check that DTMF key is valid
Diffstat (limited to 'src/audio.c')
| -rw-r--r-- | src/audio.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/audio.c b/src/audio.c index f330864..c204755 100644 --- a/src/audio.c +++ b/src/audio.c @@ -1318,10 +1318,17 @@ int audio_send_digit(struct audio *a, char key) return EINVAL; if (key != KEYCODE_REL) { + int event = telev_digit2code(key); info("audio: send DTMF digit: '%c'\n", key); - err = telev_send(a->telev, telev_digit2code(key), false); + + if (event == -1) { + warning("audio: invalid DTMF digit (0x%02x)\n", key); + return EINVAL; + } + + err = telev_send(a->telev, event, false); } - else if (a->tx.cur_key != KEYCODE_REL) { + else if (a->tx.cur_key && a->tx.cur_key != KEYCODE_REL) { /* Key release */ info("audio: send DTMF digit end: '%c'\n", a->tx.cur_key); err = telev_send(a->telev, |