316N/A * Copyright (c) 1990, 2008, Oracle and/or its affiliates. All rights reserved. 316N/A * Permission is hereby granted, free of charge, to any person obtaining a 1276N/A * copy of this software and associated documentation files (the "Software"), 316N/A * to deal in the Software without restriction, including without limitation 316N/A * the rights to use, copy, modify, merge, publish, distribute, sublicense, 919N/A * and/or sell copies of the Software, and to permit persons to whom the 919N/A * Software is furnished to do so, subject to the following conditions: 919N/A * The above copyright notice and this permission notice (including the next 919N/A * paragraph) shall be included in all copies or substantial portions of the 919N/A * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 919N/A * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 919N/A * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 919N/A * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 919N/A * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 919N/A * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 919N/A * DEALINGS IN THE SOFTWARE. 316N/A * winsysck - determine which window system protocols are available 316N/A * usage: winsysck [ -va ] [ -display display_name ] protocol [...] 970N/A * -a check every protocol listed, rather than stopping after 970N/A * -v print the first available protocol (or every available 970N/A * protocol, with the -a option) to stdout. 316N/A * -display display_name 1276N/A * use the display display_name for X11 connections instead of 316N/A * the one specified by the $DISPLAY environment variable. 1276N/A * The timeout option sets the number of seconds before 1276N/A * the winsysck will time out. 493N/A * Both the X11 and the NeWS protocols, and both connect to 970N/A * The SunView protocol. 970N/A * NOTE: Since news, x11news, and sunview have been unsupported for over 970N/A * a decade, we no longer actually check for them, but always return false. 316N/A * 0 if any listed protocols are available * 1 if no listed protocols are available "[-va] [-display display_name] [-timeout seconds] protocol [...]",
"protocol can be one of: x11 news x11news sunview");
* Keep track of what protocols we're checking, and in what order. * Keep track of the options specified. * Try connecting via the specified protocols.