From: Pierre Ossman <ossman@cendio.se>
Date: Wed, 5 Oct 2016 12:44:24 +0000 (+0200)
Subject: Handle select() errors
X-Git-Tag: v1.7.90~75
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=3c9012b56d71a6eebd3608406d32d977d08d603b;p=tigervnc.git

Handle select() errors
---

diff --git a/unix/xserver/hw/vnc/vncBlockHandler.c b/unix/xserver/hw/vnc/vncBlockHandler.c
index 604dc4ab..390a9b3c 100644
--- a/unix/xserver/hw/vnc/vncBlockHandler.c
+++ b/unix/xserver/hw/vnc/vncBlockHandler.c
@@ -191,6 +191,9 @@ static void vncWakeupHandler(void * data, int nfds, void * readmask)
 
   static struct vncFdEntry* entry;
 
+  if (nfds <= 0)
+    return;
+
   entry = fdsHead;
   while (entry) {
     if (entry->read && FD_ISSET(entry->fd, fds))
@@ -231,6 +234,9 @@ void vncWriteWakeupHandler(int nfds, fd_set *fds)
 {
   static struct vncFdEntry* entry;
 
+  if (nfds <= 0)
+    return;
+
   entry = fdsHead;
   while (entry) {
     if (entry->write && FD_ISSET(entry->fd, fds))