From 0abb46e7946c66445e787c3707bf4b5d2790b868 Mon Sep 17 00:00:00 2001
From: Arvid Norberg <arvid@libtorrent.org>
Date: Thu, 23 Nov 2006 16:21:45 +0000
Subject: [PATCH] fixed extension bug, where 0-pointers would be added the the
 extension list

---
 src/session_impl.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/session_impl.cpp b/src/session_impl.cpp
index a1c5e0dce..65315a336 100755
--- a/src/session_impl.cpp
+++ b/src/session_impl.cpp
@@ -1256,7 +1256,8 @@ namespace libtorrent { namespace detail
 		for (extension_list_t::iterator i = m_extensions.begin()
 			, end(m_extensions.end()); i != end; ++i)
 		{
-				torrent_ptr->add_extension((*i)(torrent_ptr.get()));
+			boost::shared_ptr<torrent_plugin> tp((*i)(torrent_ptr.get()));
+			if (tp) torrent_ptr->add_extension(tp);
 		}
 #endif
 
@@ -1341,7 +1342,8 @@ namespace libtorrent { namespace detail
 		for (extension_list_t::iterator i = m_extensions.begin()
 			, end(m_extensions.end()); i != end; ++i)
 		{
-				torrent_ptr->add_extension((*i)(torrent_ptr.get()));
+			boost::shared_ptr<torrent_plugin> tp((*i)(torrent_ptr.get()));
+			if (tp) torrent_ptr->add_extension(tp);
 		}
 #endif