src/server.c

Wed, 09 Apr 2014 12:07:47 +0200

author
Mike Becker <universe@uap-core.de>
date
Wed, 09 Apr 2014 12:07:47 +0200
changeset 34
c4d4b8a8f902
parent 30
a285ee393860
child 46
4dcfb4c58b6d
permissions
-rw-r--r--

added nonblocking read for network games + minor build system fixes

     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 "game.h"
    32 #include <ncurses.h>
    34 static int server_open(Server *server, char *port) {
    35     printw("\nListening for client...\n");
    36     refresh();
    37     if (net_create(server, port)) {
    38         addstr("Server creation failed");
    39         return 1;
    40     }
    42     if (net_listen(server)) {
    43         addstr("Listening for client failed");
    44         return 1;
    45     }
    47     return 0;
    48 }
    50 static int server_handshake(Client *client) {
    51     net_send_code(client->fd, NETCODE_VERSION);
    52     if (net_recieve_code(client->fd) != NETCODE_VERSION) {
    53         addstr("Client uses an incompatible software version.");
    54         return 1;
    55     }
    57     printw("Client connected - transmitting gameinfo...");
    58     refresh();
    60     return 0;
    61 }
    63 int server_run(Settings *settings) {
    64     Server server;
    66     dump_gameinfo(&(settings->gameinfo));
    68     if (server_open(&server, settings->port)) {
    69         net_destroy(&server);
    70         return EXIT_FAILURE;
    71     }
    73     if (server_handshake(server.client)) {
    74         net_destroy(&server);
    75         return EXIT_FAILURE;
    76     }
    78     int fd = server.client->fd;
    79     net_send_data(fd, NETCODE_GAMEINFO,
    80         &(settings->gameinfo), sizeof(GameInfo));
    81     printw("\rClient connected - awaiting challenge acceptance...");
    82     refresh();
    83     int code = net_recieve_code(fd);
    84     if (code == NETCODE_ACCEPT) {
    85         printw("\rClient connected - challenge accepted.");
    86         clrtoeol();
    88         game_start(settings, fd);
    89     } else if (code == NETCODE_DECLINE) {
    90         printw("\rClient connected - challenge declined.");
    91         clrtoeol();
    92     } else {
    93         addstr("\rInvalid client response");
    94         clrtoeol();
    96         net_destroy(&server);
    97         return EXIT_FAILURE;
    98     }
   100     net_destroy(&server);
   101     return EXIT_SUCCESS;
   102 }

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