From 65887df126d70c9a29fdd0ea470a49d01bb6acda Mon Sep 17 00:00:00 2001
From: Markus Koschany <apo@debian.org>
Date: Sun, 30 Dec 2018 12:12:16 +0100
Subject: [PATCH] avio_feof

This function is needed for several of the CVE-2017-140xx flaws.

Gbp-Pq: Name avio_feof.patch
---
 libavformat/avio.h    |  2 ++
 libavformat/aviobuf.c | 11 +++++++++++
 2 files changed, 13 insertions(+)

diff --git a/libavformat/avio.h b/libavformat/avio.h
index 3360e82..7669132 100644
--- a/libavformat/avio.h
+++ b/libavformat/avio.h
@@ -227,6 +227,8 @@ static av_always_inline int64_t avio_tell(AVIOContext *s)
  */
 int64_t avio_size(AVIOContext *s);
 
+int avio_feof(AVIOContext *s);
+
 /** @warning currently size is limited */
 int avio_printf(AVIOContext *s, const char *fmt, ...) av_printf_format(2, 3);
 
diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index 6923b78..17b8300 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -257,6 +257,17 @@ int64_t avio_size(AVIOContext *s)
     return size;
 }
 
+int avio_feof(AVIOContext *s)
+{
+    if(!s)
+        return 0;
+    if(s->eof_reached){
+        s->eof_reached=0;
+        fill_buffer(s);
+    }
+    return s->eof_reached;
+}
+
 void avio_wl32(AVIOContext *s, unsigned int val)
 {
     avio_w8(s, val);
-- 
2.30.2