Copyright (C) 2011 Rémi Denis-Courmont.
Licensed under GNU General Public License version 2 or higher.
diff -ru live.orig/groupsock/GroupsockHelper.cpp live555/groupsock/GroupsockHelper.cpp
--- live.orig/groupsock/GroupsockHelper.cpp	2011-08-23 18:19:59.000000000 +0300
+++ live/groupsock/GroupsockHelper.cpp	2011-08-23 18:26:32.000000000 +0300
@@ -49,13 +49,33 @@
   reuseFlag = 1;
 }
 
+static int makeSocket(int type)
+{
+  int fd;
+
+#ifdef SOCK_CLOEXEC
+  fd = socket(AF_INET, type|SOCK_CLOEXEC, 0);
+  if (fd != -1 || errno != EINVAL)
+      return fd;
+#endif
+
+  fd = socket(AF_INET, type, 0);
+  if (fd == -1)
+    return -1;
+#ifdef FD_CLOEXEC
+  fcntl(fd, F_SETFD, FD_CLOEXEC);
+#endif
+  return fd;
+}
+
+
 int setupDatagramSocket(UsageEnvironment& env, Port port) {
   if (!initializeWinsockIfNecessary()) {
     socketErr(env, "Failed to initialize 'winsock': ");
     return -1;
   }
 
-  int newSocket = socket(AF_INET, SOCK_DGRAM, 0);
+  int newSocket = makeSocket(SOCK_DGRAM);
   if (newSocket < 0) {
     socketErr(env, "unable to create datagram socket: ");
     return newSocket;
@@ -161,7 +181,7 @@
     return -1;
   }
 
-  int newSocket = socket(AF_INET, SOCK_STREAM, 0);
+  int newSocket = makeSocket(SOCK_STREAM);
   if (newSocket < 0) {
     socketErr(env, "unable to create stream socket: ");
     return newSocket;