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-rw-r--r--libvncserver/sockets.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/libvncserver/sockets.c b/libvncserver/sockets.c
index 84c9c98..3ff2aac 100644
--- a/libvncserver/sockets.c
+++ b/libvncserver/sockets.c
@@ -402,9 +402,9 @@ rfbProcessNewConnection(rfbScreenInfoPtr rfbScreen)
rfbLogPerror("rfbProcessNewConnection: error in select");
return FALSE;
}
- if (FD_ISSET(rfbScreen->listenSock, &listen_fds))
+ if (rfbScreen->listenSock >= 0 && FD_ISSET(rfbScreen->listenSock, &listen_fds))
chosen_listen_sock = rfbScreen->listenSock;
- if (FD_ISSET(rfbScreen->listen6Sock, &listen_fds))
+ if (rfbScreen->listen6Sock >= 0 && FD_ISSET(rfbScreen->listen6Sock, &listen_fds))
chosen_listen_sock = rfbScreen->listen6Sock;
if ((sock = accept(chosen_listen_sock,