use SO_KEEPALIVE option on all sockets do detect dead sockets

3 files changed, 9 insertions, 0 deletions

diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 2d4ef6b..fb7293e 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -100,6 +100,9 @@ Jori Hamalainen
   for extensive testing while making stream compatible to Network Media Tank
   for adding Network Media Tank browser support to HTML pages
 
+owagner
+  for suggesting use of SO_KEEPALIVE socket option to detect dead sockets
+
 Joachim König-Baltes
   for fixing Min/MaxPriority parsing
 
diff --git a/HISTORY b/HISTORY
index 3f4929d..eae2865 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,6 +1,8 @@
 VDR Plugin 'streamdev' Revision History
 ---------------------------------------
 
+- use SO_KEEPALIVE option on all sockets do detect dead sockets (thanks to
+  owagner)
 - enable PatFilter for externremux, so VLC can be used as remuxer or client
 - fixed insecure format strings in LSTX handlers (thanks to Anssi Hannula)
 - updated Finish translation (thanks to Rolf Ahrenberg)
diff --git a/tools/socket.c b/tools/socket.c
index 3523c29..5dde45a 100644
--- a/tools/socket.c
+++ b/tools/socket.c
@@ -124,6 +124,10 @@ bool cTBSocket::Accept(const cTBSocket &Listener) {
 	if (::getsockname(socket, (struct sockaddr*)&m_LocalAddr, &addrlen) == -1)
 		return false;
 	
+	int sol=1;
+	// Ignore possible errors here, proceed as usual
+	::setsockopt(socket, SOL_SOCKET, SO_KEEPALIVE, &sol, sizeof(sol)); 
+
 	if (!cTBSource::Open(socket))
 		return false;