terminal-chess: src/main.c@e5fbb8f9edbe

     1 /*

     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

     3  *

     4  * Copyright 2014 Mike Becker. All rights reserved.

     5  *

     6  * Redistribution and use in source and binary forms, with or without

     7  * modification, are permitted provided that the following conditions are met:

     8  *

     9  *   1. Redistributions of source code must retain the above copyright

    10  *      notice, this list of conditions and the following disclaimer.

    11  *

    12  *   2. Redistributions in binary form must reproduce the above copyright

    13  *      notice, this list of conditions and the following disclaimer in the

    14  *      documentation and/or other materials provided with the distribution.

    15  *

    16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

    17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

    19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE

    20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

    21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

    22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

    23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

    24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

    26  * POSSIBILITY OF SUCH DAMAGE.

    27  *

    28  */

    30 #include "terminal-chess.h"

    31 #include <string.h>

    33 int get_settings(int argc, char **argv, Settings *settings) {

    34     char *valid;

    36     for (char opt ; (opt = getopt(argc, argv, "hp:")) != -1 ;) {

    37         switch (opt) {

    38             case 'p':

    39                 if (strtol(optarg, &valid, 10) < 1025 || *valid != '\0') {

    40                     fprintf(stderr,

    41                         "Invalid port number (%s) - choose a number > 1024\n",

    42                         optarg);

    43                     return 1;

    44                 } else {

    45                     settings->port = optarg;

    46                 }

    47                 break;

    48             case 'h':

    49             case '?':

    50                 settings->printhelp = 1;

    51                 break;

    52         }

    53     }

    55     if (optind == argc - 1) {

    56         settings->serverhost = argv[optind];

    57     } else if (optind < argc - 1) {

    58         fprintf(stderr, "Too many arguments\n");

    59         return 1;

    60     }

    62     return 0;

    63 }

    65 Settings default_settings() {

    66     Settings settings;

    67     memset(&settings, 0, sizeof(Settings));

    68     settings.port = "27015";

    69     return settings;

    70 }

    72 int cleanup(Settings *settings, int exitcode) {

    73     if (settings->server) {

    74         if (net_destroy(settings->server)) {

    75             perror("Server shutdown failed");

    76         }

    77     }

    79     return exitcode;

    80 }

    82 int main(int argc, char **argv) {

    84     Settings settings = default_settings();

    85     get_settings(argc, argv, &settings);

    87     if (settings.printhelp) {

    88         printf(

    89             "Usage: %s [OPTION]... [HOST]\n"

    90             "Starts/joins a network chess game\n\n"

    91             "  -h            This help page\n"

    92             "  -p            TCP port to use (default: 27015)\n",

    93             argv[0]);

    94         return EXIT_SUCCESS;

    95     }

    97     Server server;

    98     settings.server = &server;

   100     if (is_server(&settings)) {

   101         if (net_find(&server, settings.serverhost, settings.port)) {

   102             perror("Can't find server");

   103             return cleanup(&settings, EXIT_FAILURE);

   104         }

   106         if (net_connect(&server)) {

   107             perror("Can't connect to server");

   108             return cleanup(&settings, EXIT_FAILURE);

   109         }

   110     } else {

   111         if (net_create(&server, settings.port)) {

   112             perror("Server creation failed");

   113             return cleanup(&settings, EXIT_FAILURE);

   114         }

   116         if (net_listen(&server)) {

   117             perror("Listening for client failed");

   118             return cleanup(&settings, EXIT_FAILURE);

   119         }

   120     }

   122     return cleanup(&settings, EXIT_SUCCESS);

   123 }

Mercurial > hg > terminal-chess / file revision