From: Marius Gavrilescu <marius@ieval.ro>
Date: Sat, 24 Sep 2016 20:55:57 +0000 (+0100)
Subject: Croak if OpusHead->mapping gets a nonsensical argument
X-Git-Tag: 0.004~4
X-Git-Url: http://git.ieval.ro/?p=audio-opusfile.git;a=commitdiff_plain;h=b658996033eac41ec27a1cae2d054cb28c1f4230

Croak if OpusHead->mapping gets a nonsensical argument
---

diff --git a/Opusfile.xs b/Opusfile.xs
index 2f999ac..a8cf872 100644
--- a/Opusfile.xs
+++ b/Opusfile.xs
@@ -269,8 +269,10 @@ OUTPUT:
 int
 mapping(head, k)
 	Audio::Opusfile::Head head;
-	int k;
+	unsigned k;
 CODE:
+	if(k >= OPUS_CHANNEL_COUNT_MAX)
+		croak("k must be less than %d\n", (int)OPUS_CHANNEL_COUNT_MAX);
 	RETVAL = (int) head->mapping[k];
 OUTPUT:
 	RETVAL