From 0d47d17002a532fa6dc118b4c95c95e557ac7ef3 Mon Sep 17 00:00:00 2001
From: Fabian Giesen <rygorous@gmail.com>
Date: Sun, 4 Jul 2021 19:26:31 -0700
Subject: [PATCH] stb_vorbis: Set error on open_memory with NULL data

"Unexpected EOF" seems like the closest match from the error
codes we have.

Fixes issue #1123.
---
 stb_vorbis.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/stb_vorbis.c b/stb_vorbis.c
index 7c0e9cd..51e8eec 100644
--- a/stb_vorbis.c
+++ b/stb_vorbis.c
@@ -5100,7 +5100,10 @@ stb_vorbis * stb_vorbis_open_filename(const char *filename, int *error, const st
 stb_vorbis * stb_vorbis_open_memory(const unsigned char *data, int len, int *error, const stb_vorbis_alloc *alloc)
 {
    stb_vorbis *f, p;
-   if (data == NULL) return NULL;
+   if (!data) {
+      if (error) *error = VORBIS_unexpected_eof;
+      return NULL;
+   }
    vorbis_init(&p, alloc);
    p.stream = (uint8 *) data;
    p.stream_end = (uint8 *) data + len;