Mercurial > hg > terminal-chess / file comparison
comparison: src/network.c
src/network.c
- changeset 1
- e5fbb8f9edbe
- child 2
- 0a08f79c320d
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| 0:98034084033f | 1: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 */ | |
| 29 | |
| 30 #include <stdlib.h> | |
| 31 #include <string.h> | |
| 32 #include "network.h" | |
| 33 | |
| 34 int server_bind(Server *server) { | |
| 35 server->fd = socket(server->info->ai_family, | |
| 36 server->info->ai_socktype, server->info->ai_protocol); | |
| 37 if (server->fd > -1) { | |
| 38 int true = 1; | |
| 39 setsockopt(server->fd, SOL_SOCKET, SO_REUSEADDR, &true, sizeof(int)); | |
| 40 if (bind(server->fd, | |
| 41 server->info->ai_addr, server->info->ai_addrlen)) { | |
| 42 server->fd = -1; | |
| 43 return 1; | |
| 44 } else { | |
| 45 return 0; | |
| 46 } | |
| 47 } else { | |
| 48 return 1; | |
| 49 } | |
| 50 } | |
| 51 | |
| 52 int net_create(Server *server, char* port) { | |
| 53 return net_find(server, "localhost", port) || server_bind(server); | |
| 54 } | |
| 55 | |
| 56 int getaddrinfo_intrnl(char *host, char *port, struct addrinfo **info) { | |
| 57 struct addrinfo hints; | |
| 58 memset(&hints, 0, sizeof(hints)); | |
| 59 hints.ai_socktype = SOCK_STREAM; | |
| 60 hints.ai_protocol = IPPROTO_TCP; | |
| 61 | |
| 62 return getaddrinfo(host, port, &hints, info); | |
| 63 } | |
| 64 | |
| 65 int net_find(Server *server, char *host, char* port) { | |
| 66 memset(server, 0, sizeof(Server)); | |
| 67 server->fd = -1; | |
| 68 | |
| 69 return getaddrinfo_intrnl(host, port, &(server->info)); | |
| 70 } | |
| 71 | |
| 72 int net_listen(Server *server) { | |
| 73 listen(server->fd, 1); | |
| 74 Client* client = calloc(1, sizeof(Client)); | |
| 75 client->fd = -1; | |
| 76 server->client = client; | |
| 77 | |
| 78 client->fd = accept(server->fd, | |
| 79 &(client->address), &(client->address_len)); | |
| 80 | |
| 81 return client->fd == -1; | |
| 82 } | |
| 83 | |
| 84 int net_connect(Server *server) { | |
| 85 struct addrinfo *info; | |
| 86 if (getaddrinfo_intrnl("localhost", NULL, &info)) { | |
| 87 return 1; | |
| 88 } | |
| 89 | |
| 90 Client* client = calloc(1, sizeof(Client)); | |
| 91 client->fd = socket(info->ai_family, info->ai_socktype, info->ai_protocol); | |
| 92 server->client = client; | |
| 93 | |
| 94 freeaddrinfo(info); | |
| 95 if (client->fd == -1) { | |
| 96 return 1; | |
| 97 } | |
| 98 | |
| 99 return connect(client->fd, server->info->ai_addr, server->info->ai_addrlen); | |
| 100 } | |
| 101 | |
| 102 int net_destroy(Server *server) { | |
| 103 if (server->info) { | |
| 104 freeaddrinfo(server->info); | |
| 105 } | |
| 106 if (server->client) { | |
| 107 shutdown(server->client->fd, SHUT_RDWR); | |
| 108 free(server->client); | |
| 109 } | |
| 110 if (server->fd > -1) { | |
| 111 return shutdown(server->fd, SHUT_RDWR); | |
| 112 } | |
| 113 | |
| 114 return EXIT_SUCCESS; | |
| 115 } |
