0014-changed-check-some-more-url_fseeks-in-asf-demuxer-to.patch

From 9f19ad85257c413cf6c1facb6dc49efa8a10b6b3 Mon Sep 17 00:00:00 2001
From: Cory Fields <theuni-nospam-@xbmc.org>
Date: Mon, 28 Jun 2010 22:27:09 -0400
Subject: [PATCH 14/36] changed: check some more url_fseeks in asf demuxer to avoid problems if file system is unseekable

---
 libavformat/asfdec.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c
index 2bda885..4347601 100644
--- a/libavformat/asfdec.c
+++ b/libavformat/asfdec.c
@@ -1058,7 +1058,8 @@ static int64_t asf_read_pts(AVFormatContext *s, int stream_index, int64_t *ppos,
     if (s->packet_size > 0)
         pos= (pos+s->packet_size-1-s->data_offset)/s->packet_size*s->packet_size+ s->data_offset;
     *ppos= pos;
-    url_fseek(s->pb, pos, SEEK_SET);
+    if (url_fseek(s->pb, pos, SEEK_SET) < 0)
+        return AV_NOPTS_VALUE;
 
 //printf("asf_read_pts\n");
     asf_reset_header(s);
@@ -1100,7 +1101,11 @@ static void asf_build_simple_index(AVFormatContext *s, int stream_index)
     int64_t current_pos= url_ftell(s->pb);
     int i;
 
-    url_fseek(s->pb, asf->data_object_offset + asf->data_object_size, SEEK_SET);
+    if(url_fseek(s->pb, asf->data_object_offset + asf->data_object_size, SEEK_SET) < 0) {
+      asf->index_read= -1;
+      return;
+    }
+
     ff_get_guid(s->pb, &g);
 
     /* the data object can be followed by other top-level objects,
-- 
1.7.3