From ccab28c0a778d5e951ff9d6c9bb5f74fc1a2d97c Mon Sep 17 00:00:00 2001
From: Aleksandar Sasha Babic <aleksandar.babic@nokia.com>
Date: Mon, 18 May 2009 09:23:41 +0200
Subject: We should check if socket descriptor is valid before calling other
 functions.

---
 src/network/socket/qnativesocketengine_unix.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/network/socket/qnativesocketengine_unix.cpp b/src/network/socket/qnativesocketengine_unix.cpp
index e000e11..21059b1 100644
--- a/src/network/socket/qnativesocketengine_unix.cpp
+++ b/src/network/socket/qnativesocketengine_unix.cpp
@@ -518,8 +518,14 @@ int QNativeSocketEnginePrivate::nativeAccept()
 #if defined (QNATIVESOCKETENGINE_DEBUG)
     qDebug("QNativeSocketEnginePrivate::nativeAccept() == %i", acceptedDescriptor);
 #endif
-    // Ensure that the socket is closed on exec*()
-    qt_socket_fcntl(acceptedDescriptor, F_SETFD, FD_CLOEXEC);
+
+    //check if we have vaild descriptor at all
+    if(acceptedDescriptor > 0) {
+        // Ensure that the socket is closed on exec*()
+        qt_socket_fcntl(acceptedDescriptor, F_SETFD, FD_CLOEXEC);
+    } else {
+        qWarning("QNativeSocketEnginePrivate::nativeAccept() - acceptedDescriptor <= 0");
+    }
 
     return acceptedDescriptor;
 }
-- 
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