From d9a3138d137298af6641e83cc62ab272f359fcab Mon Sep 17 00:00:00 2001
From: Monty <paranoia@xiph.org>
Date: Tue, 30 Jan 2018 13:51:00 +0900
Subject: [PATCH] Changeset 15356: Fix a really stupid oversight that should
 have been tested:

forcing a drive/host endian mismatch within the interface lib.
Does not check for null buff before trying a byteswap
(Closes: #499716, #506337, #507795, #509762).

Gbp-Pq: Name 04-endian.patch
---
 interface/interface.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/interface/interface.c b/interface/interface.c
index cce83a4..30bffb0 100644
--- a/interface/interface.c
+++ b/interface/interface.c
@@ -118,7 +118,7 @@ long cdda_read_timed(cdrom_drive *d, void *buffer, long beginsector, long sector
 	if(d->bigendianp==-1) /* not determined yet */
 	  d->bigendianp=data_bigendianp(d);
 	
-	if(d->bigendianp!=bigendianp()){
+	if(buffer && d->bigendianp!=bigendianp()){
 	  int i;
 	  u_int16_t *p=(u_int16_t *)buffer;
 	  long els=sectors*CD_FRAMESIZE_RAW/2;