libvncserver/sockets.c: do not segfault when listenSock/listen6Sock == -1

13 years ago · 66282f5800
parent 2a97ab8679
commit 66282f5800
1 changed files with 2 additions and 2 deletions
--- 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,