terminal-chess: src/server.c@3fa1de896666 (annotated)

src/server.c@3fa1de896666 (annotated)

src/server.c

Tue, 28 Aug 2018 14:16:30 +0200

author: Mike Becker <universe@uap-core.de>
date: Tue, 28 Aug 2018 14:16:30 +0200
changeset 59: 3fa1de896666
parent 55: 54ea19938d57
child 60: 0c50aac49e55
permissions: -rw-r--r--

fixes inappropriate use of EXIT_ macros + adds a sample PGN file

 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  *
  * Copyright 2016 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 "game.h"
 #include <ncurses.h>
 #include <errno.h>
 #include <string.h>
 static int server_open(Server *server, char *port) {
     printw("\nListening for client...\n");
     refresh();
     if (net_create(server, port)) {
         addstr("Server creation failed");
         return 1;
     }
     if (net_listen(server)) {
         addstr("Listening for client failed");
         return 1;
     }
     return 0;
 }
 static int server_handshake(Client *client) {
     net_send_code(client->fd, NETCODE_VERSION);
     if (net_recieve_code(client->fd) != NETCODE_VERSION) {
         addstr("Client uses an incompatible software version.");
         return 1;
     }
     addstr("Client connected - transmitting gameinfo...");
     refresh();
     return 0;
 }
 int server_run(Settings *settings) {
     Server server;
     dump_gameinfo(&(settings->gameinfo));
     GameState continuegame;
     gamestate_init(&continuegame);
     if (settings->continuepgn) {
         // preload PGN data before handshake
         FILE *pgnfile = fopen(settings->continuepgn, "r");
         if (pgnfile) {
             int result = read_pgn(pgnfile, &continuegame,
                 &(settings->gameinfo));
             fclose(pgnfile);
             if (result) {
                 addstr("Invalid PGN file content.\n");
                 return 1;
             }
             if (!is_game_running(&continuegame)) {
                 addstr("Game has ended. Use -S to analyze it.\n");
                 return 1;
             }
             addch('\n');
             dump_moveinfo(&continuegame);
             addch('\n');
         } else {
             printw("Can't read PGN file (%s)\n", strerror(errno));
             return 1;
         }
     }
     if (server_open(&server, settings->port)) {
         net_destroy(&server);
         return 1;
     }
     if (server_handshake(server.client)) {
         net_destroy(&server);
         return 1;
     }
     int fd = server.client->fd;
     if (settings->continuepgn) {
         // Continue game, send PGN data
         uint16_t mc = 0;
         MoveList *movelist = continuegame.movelist;
         while (movelist) {
             mc++;
             movelist = movelist->next;
         }
         Move* moves = calloc(mc, sizeof(Move));
         movelist = continuegame.movelist;
         mc = 0;
         while (movelist) {
             moves[mc] = movelist->move;
             mc++;
             movelist = movelist->next;
         }
         size_t pgndata_size = sizeof(GameInfo)+sizeof(mc)+mc*sizeof(Move);
         char *pgndata = malloc(pgndata_size);
         memcpy(pgndata, &(settings->gameinfo), sizeof(GameInfo));
         memcpy(pgndata+sizeof(GameInfo), &mc, sizeof(mc));
         memcpy(pgndata+sizeof(GameInfo)+sizeof(mc), moves, mc*sizeof(Move));
         free(moves);
         net_send_data(fd, NETCODE_PGNDATA, pgndata, pgndata_size);
         free(pgndata);
     } else {
         // Start new game
         net_send_data(fd, NETCODE_GAMEINFO,
             &(settings->gameinfo), sizeof(GameInfo));
     }
     addstr("\rClient connected - awaiting challenge acceptance...");
     refresh();
     int code = net_recieve_code(fd);
     if (code == NETCODE_ACCEPT) {
         addstr("\rClient connected - challenge accepted.");
         clrtoeol();
         if (settings->continuepgn) {
             game_continue(settings, fd, &continuegame);
         } else {
             game_start(settings, fd);
         }
     } else if (code == NETCODE_DECLINE) {
         addstr("\rClient connected - challenge declined.");
         clrtoeol();
     } else if (code == NETCODE_CONNLOST) {
         addstr("\rClient connected - but gave no response.");
         clrtoeol();
     } else {
         addstr("\rInvalid client response");
         clrtoeol();
         net_destroy(&server);
         return 1;
     }
     net_destroy(&server);
     return 0;
 }

Mercurial > hg > terminal-chess / annotate

src/server.c@3fa1de896666 (annotated)

src/server.c