From a7972ea506ce140f51facdb23f095cd97db9c779 Mon Sep 17 00:00:00 2001
From: Richard Fuchs <rfuchs@sipwise.com>
Date: Mon, 4 Mar 2019 10:34:51 -0500
Subject: [PATCH] error out on invalid clock rate parsed from RTP format string

to debug #720

Change-Id: Ibb2796e49877b7c511583bfc1c3dda0bc6949ec6
---
 recording-daemon/decoder.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/recording-daemon/decoder.c b/recording-daemon/decoder.c
index d97c955d7..b206e05ba 100644
--- a/recording-daemon/decoder.c
+++ b/recording-daemon/decoder.c
@@ -34,6 +34,11 @@ decode_t *decoder_new(const char *payload_str, output_t *outp) {
 
 	str_init_len(&name, (char *) payload_str, slash - payload_str);
 	int clockrate = atoi(slash + 1);
+	if (clockrate <= 0) {
+		ilog(LOG_ERR, "Invalid clock rate %i (parsed from '%.20s'/'%.20s'",
+				clockrate, slash + 1, payload_str);
+		return NULL;
+	}
 
 	int channels = 1;
 	slash = strchr(slash + 1, '/');