2 * Copyright (C) 2013 Thadeu Lima de Souza Cascardo <cascardo@cascardo.info>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 #include <sys/socket.h>
23 #include <netinet/in.h>
24 #include <arpa/inet.h>
40 GInetSocketAddress *saddr;
44 static GSocket *usock;
48 GSocketAddress *address;
49 GInetAddress *any_addr;
52 any_addr = g_inet_address_new_any(G_SOCKET_FAMILY_IPV6);
53 usock = g_socket_new(G_SOCKET_FAMILY_IPV6, G_SOCKET_TYPE_DATAGRAM, G_SOCKET_PROTOCOL_UDP, NULL);
54 address = g_inet_socket_address_new(any_addr, 17078);
55 if (!g_socket_bind(usock, address, TRUE, &error)) {
59 g_object_unref(address);
60 g_object_unref(any_addr);
64 g_object_unref(usock);
68 int friend_send_message(struct friend *friend, char *buffer, size_t len)
70 g_socket_send_to(usock, G_SOCKET_ADDRESS(friend->saddr), buffer, len, NULL, NULL);
74 void friend_timeout(struct friend *friend)
76 if (friend->state == STATE_PINGED) {
77 friend->state = STATE_OFFLINE;
81 void friend_got_message(struct friend *friend, char *buffer, size_t len)
83 if (len >= 4 && !strncmp(buffer, "PING", 4)) {
85 } else if (len >= 4 && !strncmp(buffer, "PONG", 4)) {
86 friend->state = STATE_ONLINE;
94 static struct cache *ucache;
96 struct friend *friend_get_by_address(GInetAddress *address, uint16_t port)
99 for (l = g_list_first(ucache->friends); l != NULL; l = g_list_next(l)) {
100 struct friend *friend = l->data;
101 if (g_inet_address_equal(g_inet_socket_address_get_address(friend->saddr), address) &&
102 friend->port == port)
108 int create_cache(struct cache **cache)
110 ucache = *cache = g_slice_new0(struct cache);
111 (*cache)->friends = NULL;
115 static void destroy_friend(gpointer data)
117 struct friend *friend = data;
118 g_free(friend->name);
119 g_free(friend->address);
120 g_object_unref(friend->saddr);
121 g_slice_free(struct friend, friend);
124 int destroy_cache(struct cache *cache)
127 g_list_free_full(cache->friends, destroy_friend);
128 g_slice_free(struct cache, cache);
131 char * friend_get_name(struct friend *friend)
136 int cache_add_friend(struct cache *cache, char *name, char *address, uint16_t port)
138 struct friend *friend;
140 friend = g_slice_new0(struct friend);
141 friend->name = g_strdup(name);
142 friend->address = g_strdup(address);
144 addr = g_inet_address_new_from_string(address);
145 friend->saddr = G_INET_SOCKET_ADDRESS(g_inet_socket_address_new(addr, friend->port));
146 g_object_unref(addr);
147 cache->friends = g_list_append(cache->friends, friend);
149 friend->state = STATE_PINGED;
153 int load_cache(struct cache *cache, char *fname)
158 file = g_key_file_new();
159 g_key_file_load_from_file(file, fname, G_KEY_FILE_KEEP_COMMENTS | G_KEY_FILE_KEEP_TRANSLATIONS, NULL);
160 groups = g_key_file_get_groups(file, NULL);
161 for (group = groups; *group != NULL; group++) {
165 name = g_key_file_get_value(file, *group, "name", NULL);
166 address = g_key_file_get_value(file, *group, "address", NULL);
167 port = g_key_file_get_integer(file, *group, "port", NULL);
168 cache_add_friend(cache, name, address, port);
173 g_key_file_free(file);
177 int store_cache(struct cache *cache, char *fname)
183 file = g_key_file_new();
184 g_key_file_load_from_file(file, fname, G_KEY_FILE_KEEP_COMMENTS | G_KEY_FILE_KEEP_TRANSLATIONS, NULL);
185 for (f = g_list_first(cache->friends); f != NULL; f = g_list_next(f)) {
186 struct friend *friend = f->data;
187 g_key_file_set_value(file, friend->name, "name", friend->name);
188 g_key_file_set_value(file, friend->name, "address", friend->address);
189 g_key_file_set_integer(file, friend->name, "port", friend->port);
191 contents = g_key_file_to_data(file, &len, NULL);
192 g_file_set_contents(fname, contents, len, NULL);
194 g_key_file_free(file);