1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
/* $Id$ */
/***
This file is part of avahi.
avahi is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
avahi is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with avahi; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdlib.h>
#include <avahi-core/core.h>
#include <avahi-core/alternative.h>
static AvahiEntryGroup *group = NULL;
static AvahiServer *server = NULL;
static gchar *service_name = NULL;
static gboolean quit_timeout(gpointer data) {
g_main_loop_quit(data);
return FALSE;
}
static gboolean dump_timeout(gpointer data) {
AvahiServer *Avahi = data;
avahi_server_dump(Avahi, stdout);
return TRUE;
}
static void record_browser_callback(AvahiRecordBrowser *r, gint interface, guchar protocol, AvahiBrowserEvent event, AvahiRecord *record, gpointer userdata) {
gchar *t;
g_assert(r);
g_assert(record);
g_assert(interface > 0);
g_assert(protocol != AF_UNSPEC);
g_message("SUBSCRIPTION: record [%s] on %i.%i is %s", t = avahi_record_to_string(record), interface, protocol,
event == AVAHI_BROWSER_NEW ? "new" : "remove");
g_free(t);
}
static void remove_entries(void);
static void create_entries(gboolean new_name);
static void entry_group_callback(AvahiServer *s, AvahiEntryGroup *g, AvahiEntryGroupState state, gpointer userdata) {
g_message("entry group state: %i", state);
if (state == AVAHI_ENTRY_GROUP_COLLISION) {
remove_entries();
create_entries(TRUE);
g_message("Service name conflict, retrying with <%s>", service_name);
} else if (state == AVAHI_ENTRY_GROUP_ESTABLISHED) {
g_message("Service established under name <%s>", service_name);
}
}
static void server_callback(AvahiServer *s, AvahiServerState state, gpointer userdata) {
g_message("server state: %i", state);
if (state == AVAHI_SERVER_RUNNING) {
g_message("Server startup complete. Host name is <%s>", avahi_server_get_host_name_fqdn(s));
create_entries(FALSE);
} else if (state == AVAHI_SERVER_COLLISION) {
gchar *n;
remove_entries();
n = avahi_alternative_host_name(avahi_server_get_host_name(s));
g_message("Host name conflict, retrying with <%s>", n);
avahi_server_set_host_name(s, n);
g_free(n);
}
}
static void remove_entries(void) {
if (group)
avahi_entry_group_free(group);
group = NULL;
}
static void create_entries(gboolean new_name) {
remove_entries();
group = avahi_entry_group_new(server, entry_group_callback, NULL);
if (!service_name)
service_name = g_strdup("Test Service");
else if (new_name) {
gchar *n = avahi_alternative_service_name(service_name);
g_free(service_name);
service_name = n;
}
avahi_server_add_service(server, group, 0, AF_UNSPEC, "_http._tcp", service_name, NULL, NULL, 80, "foo", NULL);
avahi_server_add_service(server, group, 0, AF_UNSPEC, "_ftp._tcp", service_name, NULL, NULL, 21, "foo", NULL);
avahi_server_add_service(server, group, 0, AF_UNSPEC, "_webdav._tcp", service_name, NULL, NULL, 80, "foo", NULL);
avahi_entry_group_commit(group);
}
static void hnr_callback(AvahiHostNameResolver *r, gint iface, guchar protocol, AvahiBrowserEvent event, const gchar *hostname, const AvahiAddress *a, gpointer userdata) {
gchar t[64];
if (a)
avahi_address_snprint(t, sizeof(t), a);
g_message("HNR: (%i.%i) <%s> -> %s [%s]", iface, protocol, hostname, a ? t : "n/a", event == AVAHI_RESOLVER_FOUND ? "found" : "timeout");
}
static void ar_callback(AvahiAddressResolver *r, gint iface, guchar protocol, AvahiBrowserEvent event, const AvahiAddress *a, const gchar *hostname, gpointer userdata) {
gchar t[64];
avahi_address_snprint(t, sizeof(t), a);
g_message("AR: (%i.%i) %s -> <%s> [%s]", iface, protocol, t, hostname ? hostname : "n/a", event == AVAHI_RESOLVER_FOUND ? "found" : "timeout");
}
static void db_callback(AvahiDomainBrowser *b, gint iface, guchar protocol, AvahiBrowserEvent event, const gchar *domain, gpointer userdata) {
g_message("DB: (%i.%i) <%s> [%s]", iface, protocol, domain, event == AVAHI_BROWSER_NEW ? "new" : "remove");
}
static void stb_callback(AvahiServiceTypeBrowser *b, gint iface, guchar protocol, AvahiBrowserEvent event, const gchar *service_type, const gchar *domain, gpointer userdata) {
g_message("STB: (%i.%i) %s in <%s> [%s]", iface, protocol, service_type, domain, event == AVAHI_BROWSER_NEW ? "new" : "remove");
}
static void sb_callback(AvahiServiceBrowser *b, gint iface, guchar protocol, AvahiBrowserEvent event, const gchar *name, const gchar *service_type, const gchar *domain, gpointer userdata) {
g_message("SB: (%i.%i) <%s> as %s in <%s> [%s]", iface, protocol, name, service_type, domain, event == AVAHI_BROWSER_NEW ? "new" : "remove");
}
static void sr_callback(AvahiServiceResolver *r, gint iface, guchar protocol, AvahiBrowserEvent event, const gchar *service_name, const gchar*service_type, const gchar*domain_name, const gchar*hostname, const AvahiAddress *a, guint16 port, AvahiStringList *txt, gpointer userdata) {
if (event == AVAHI_RESOLVER_TIMEOUT)
g_message("SR: (%i.%i) <%s> as %s in <%s> [timeout]", iface, protocol, service_name, service_type, domain_name);
else {
gchar t[64], *s;
avahi_address_snprint(t, sizeof(t), a);
s = avahi_string_list_to_string(txt);
g_message("SR: (%i.%i) <%s> as %s in <%s>: %s/%s:%i (%s) [found]", iface, protocol, service_name, service_type, domain_name, hostname, t, port, s);
g_free(s);
}
}
int main(int argc, char *argv[]) {
GMainLoop *loop = NULL;
AvahiRecordBrowser *r;
AvahiHostNameResolver *hnr;
AvahiAddressResolver *ar;
AvahiKey *k;
AvahiServerConfig config;
AvahiAddress a;
AvahiDomainBrowser *db;
AvahiServiceTypeBrowser *stb;
AvahiServiceBrowser *sb;
AvahiServiceResolver *sr;
avahi_server_config_init(&config);
/* config.host_name = g_strdup("test"); */
server = avahi_server_new(NULL, &config, server_callback, NULL);
avahi_server_config_free(&config);
k = avahi_key_new("_http._tcp.local", AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_PTR);
r = avahi_record_browser_new(server, -1, AF_UNSPEC, k, record_browser_callback, NULL);
avahi_key_unref(k);
hnr = avahi_host_name_resolver_new(server, -1, AF_UNSPEC, "codes-CompUTER.local", AF_UNSPEC, hnr_callback, NULL);
ar = avahi_address_resolver_new(server, -1, AF_UNSPEC, avahi_address_parse("192.168.50.15", AF_INET, &a), ar_callback, NULL);
db = avahi_domain_browser_new(server, -1, AF_UNSPEC, NULL, AVAHI_DOMAIN_BROWSER_BROWSE, db_callback, NULL);
stb = avahi_service_type_browser_new(server, -1, AF_UNSPEC, NULL, stb_callback, NULL);
sb = avahi_service_browser_new(server, -1, AF_UNSPEC, "_http._tcp", NULL, sb_callback, NULL);
sr = avahi_service_resolver_new(server, -1, AF_UNSPEC, "Ecstasy HTTP", "_http._tcp", "local", AF_UNSPEC, sr_callback, NULL);
loop = g_main_loop_new(NULL, FALSE);
g_timeout_add(1000*5, dump_timeout, server);
g_timeout_add(1000*30, quit_timeout, loop);
g_main_loop_run(loop);
g_main_loop_unref(loop);
avahi_record_browser_free(r);
avahi_host_name_resolver_free(hnr);
avahi_address_resolver_free(ar);
avahi_service_type_browser_free(stb);
avahi_service_browser_free(sb);
avahi_service_resolver_free(sr);
if (group)
avahi_entry_group_free(group);
if (server)
avahi_server_free(server);
g_free(service_name);
return 0;
}
|
