terminal-chess: src/main.c@e5fbb8f9edbe (annotated)

src/main.c@e5fbb8f9edbe (annotated)

src/main.c

Wed, 05 Feb 2014 14:07:43 +0100

author: Mike Becker <universe@uap-core.de>
date: Wed, 05 Feb 2014 14:07:43 +0100
changeset 1: e5fbb8f9edbe
parent 0: 98034084033f
child 2: 0a08f79c320d
permissions: -rw-r--r--

added (single) client / server architecture

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

Mercurial > hg > terminal-chess / annotate

src/main.c@e5fbb8f9edbe (annotated)

src/main.c