universe@0: /*
universe@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
universe@0:  *
universe@0:  * Copyright 2014 Mike Becker. All rights reserved.
universe@0:  *
universe@0:  * Redistribution and use in source and binary forms, with or without
universe@0:  * modification, are permitted provided that the following conditions are met:
universe@0:  *
universe@0:  *   1. Redistributions of source code must retain the above copyright
universe@0:  *      notice, this list of conditions and the following disclaimer.
universe@0:  *
universe@0:  *   2. Redistributions in binary form must reproduce the above copyright
universe@0:  *      notice, this list of conditions and the following disclaimer in the
universe@0:  *      documentation and/or other materials provided with the distribution.
universe@0:  *
universe@0:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
universe@0:  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
universe@0:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
universe@0:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
universe@0:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
universe@0:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
universe@0:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
universe@0:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
universe@0:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
universe@0:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
universe@0:  * POSSIBILITY OF SUCH DAMAGE.
universe@0:  *
universe@0:  */
universe@0: 
universe@1: #include "terminal-chess.h"
universe@1: #include <string.h>
universe@1: 
universe@1: int get_settings(int argc, char **argv, Settings *settings) {
universe@1:     char *valid;
universe@1:     
universe@1:     for (char opt ; (opt = getopt(argc, argv, "hp:")) != -1 ;) {
universe@1:         switch (opt) {
universe@1:             case 'p':
universe@1:                 if (strtol(optarg, &valid, 10) < 1025 || *valid != '\0') {
universe@1:                     fprintf(stderr,
universe@1:                         "Invalid port number (%s) - choose a number > 1024\n",
universe@1:                         optarg);
universe@1:                     return 1;
universe@1:                 } else {
universe@1:                     settings->port = optarg;
universe@1:                 }
universe@1:                 break;
universe@1:             case 'h':
universe@1:             case '?':
universe@1:                 settings->printhelp = 1;
universe@1:                 break;
universe@1:         }
universe@1:     }
universe@1:     
universe@1:     if (optind == argc - 1) {
universe@1:         settings->serverhost = argv[optind];
universe@1:     } else if (optind < argc - 1) {
universe@1:         fprintf(stderr, "Too many arguments\n");
universe@1:         return 1;
universe@1:     }
universe@1:     
universe@1:     return 0;
universe@1: }
universe@1: 
universe@1: Settings default_settings() {
universe@1:     Settings settings;
universe@1:     memset(&settings, 0, sizeof(Settings));
universe@1:     settings.port = "27015";
universe@1:     return settings;
universe@1: }
universe@1: 
universe@1: int cleanup(Settings *settings, int exitcode) {
universe@1:     if (settings->server) {
universe@1:         if (net_destroy(settings->server)) {
universe@1:             perror("Server shutdown failed");
universe@1:         }
universe@1:     }
universe@1:     
universe@1:     return exitcode;
universe@1: }
universe@0: 
universe@0: int main(int argc, char **argv) {
universe@1:     
universe@1:     Settings settings = default_settings();
universe@1:     get_settings(argc, argv, &settings);
universe@1:     
universe@1:     if (settings.printhelp) {
universe@1:         printf(
universe@1:             "Usage: %s [OPTION]... [HOST]\n"
universe@1:             "Starts/joins a network chess game\n\n"
universe@1:             "  -h            This help page\n"
universe@1:             "  -p            TCP port to use (default: 27015)\n",
universe@1:             argv[0]);
universe@1:         return EXIT_SUCCESS;
universe@1:     }
universe@1:     
universe@1:     Server server;
universe@1:     settings.server = &server;
universe@1:     
universe@1:     if (is_server(&settings)) {
universe@1:         if (net_find(&server, settings.serverhost, settings.port)) {
universe@1:             perror("Can't find server");
universe@1:             return cleanup(&settings, EXIT_FAILURE);
universe@1:         }
universe@1:         
universe@1:         if (net_connect(&server)) {
universe@1:             perror("Can't connect to server");
universe@1:             return cleanup(&settings, EXIT_FAILURE);
universe@1:         }
universe@1:     } else {
universe@1:         if (net_create(&server, settings.port)) {
universe@1:             perror("Server creation failed");
universe@1:             return cleanup(&settings, EXIT_FAILURE);
universe@1:         }
universe@1:         
universe@1:         if (net_listen(&server)) {
universe@1:             perror("Listening for client failed");
universe@1:             return cleanup(&settings, EXIT_FAILURE);
universe@1:         }
universe@1:     }
universe@1:     
universe@1:     return cleanup(&settings, EXIT_SUCCESS);
universe@0: }
universe@0: