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)) {
84 friend->state = STATE_ONLINE;
86 } else if (len >= 4 && !strncmp(buffer, "PONG", 4)) {
87 friend->state = STATE_ONLINE;
95 static struct cache *ucache;
97 struct friend *friend_get_by_address(GInetAddress *address, uint16_t port)
100 for (l = g_list_first(ucache->friends); l != NULL; l = g_list_next(l)) {
101 struct friend *friend = l->data;
102 if (g_inet_address_equal(g_inet_socket_address_get_address(friend->saddr), address) &&
103 friend->port == port)
109 int create_cache(struct cache **cache)
111 ucache = *cache = g_slice_new0(struct cache);
112 (*cache)->friends = NULL;
116 static void destroy_friend(gpointer data)
118 struct friend *friend = data;
119 g_free(friend->name);
120 g_free(friend->address);
121 g_object_unref(friend->saddr);
122 g_slice_free(struct friend, friend);
125 int destroy_cache(struct cache *cache)
128 g_list_free_full(cache->friends, destroy_friend);
129 g_slice_free(struct cache, cache);
132 char * friend_get_name(struct friend *friend)
137 int cache_add_friend(struct cache *cache, char *name, char *address, uint16_t port)
139 struct friend *friend;
141 friend = g_slice_new0(struct friend);
142 friend->name = g_strdup(name);
143 friend->address = g_strdup(address);
145 addr = g_inet_address_new_from_string(address);
146 friend->saddr = G_INET_SOCKET_ADDRESS(g_inet_socket_address_new(addr, friend->port));
147 g_object_unref(addr);
148 cache->friends = g_list_append(cache->friends, friend);
150 friend->state = STATE_PINGED;
154 int load_cache(struct cache *cache, char *fname)
159 file = g_key_file_new();
160 g_key_file_load_from_file(file, fname, G_KEY_FILE_KEEP_COMMENTS | G_KEY_FILE_KEEP_TRANSLATIONS, NULL);
161 groups = g_key_file_get_groups(file, NULL);
162 for (group = groups; *group != NULL; group++) {
166 name = g_key_file_get_value(file, *group, "name", NULL);
167 address = g_key_file_get_value(file, *group, "address", NULL);
168 port = g_key_file_get_integer(file, *group, "port", NULL);
169 cache_add_friend(cache, name, address, port);
174 g_key_file_free(file);
178 int store_cache(struct cache *cache, char *fname)
184 file = g_key_file_new();
185 g_key_file_load_from_file(file, fname, G_KEY_FILE_KEEP_COMMENTS | G_KEY_FILE_KEEP_TRANSLATIONS, NULL);
186 for (f = g_list_first(cache->friends); f != NULL; f = g_list_next(f)) {
187 struct friend *friend = f->data;
188 g_key_file_set_value(file, friend->name, "name", friend->name);
189 g_key_file_set_value(file, friend->name, "address", friend->address);
190 g_key_file_set_integer(file, friend->name, "port", friend->port);
192 contents = g_key_file_to_data(file, &len, NULL);
193 g_file_set_contents(fname, contents, len, NULL);
195 g_key_file_free(file);