From 43abb18e4ec31a8b7b92c64aa68c28421195454c Mon Sep 17 00:00:00 2001
From: ejurgensen <espenjurgensen@gmail.com>
Date: Sun, 20 Aug 2017 23:08:36 +0200
Subject: [PATCH] [transcode] Fix illegal write when *icy_timer is null (fixes
 issue #412)

---
 src/transcode_legacy.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/transcode_legacy.c b/src/transcode_legacy.c
index 104a5a19..ef2a0b32 100644
--- a/src/transcode_legacy.c
+++ b/src/transcode_legacy.c
@@ -1490,7 +1490,8 @@ transcode(struct evbuffer *evbuf, int *icy_timer, struct transcode_ctx *ctx, int
   int processed;
   int ret;
 
-  *icy_timer = 0;
+  if (icy_timer)
+    *icy_timer = 0;
 
   processed = 0;
   while (processed < want_bytes)
@@ -1508,7 +1509,7 @@ transcode(struct evbuffer *evbuf, int *icy_timer, struct transcode_ctx *ctx, int
     }
 
   ctx->encode_ctx->total_bytes += processed;
-  if (ctx->encode_ctx->icy_interval)
+  if (icy_timer && ctx->encode_ctx->icy_interval)
     *icy_timer = (ctx->encode_ctx->total_bytes % ctx->encode_ctx->icy_interval < processed);
 
   return processed;