/*** 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 #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static AvahiSEntryGroup *group = NULL; static AvahiServer *server = NULL; static char *service_name = NULL; static const AvahiPoll *poll_api; static void quit_timeout_callback(AVAHI_GCC_UNUSED AvahiTimeout *timeout, void* userdata) { AvahiSimplePoll *simple_poll = userdata; avahi_simple_poll_quit(simple_poll); } static void dump_line(const char *text, AVAHI_GCC_UNUSED void* userdata) { printf("%s\n", text); } static void dump_timeout_callback(AvahiTimeout *timeout, void* userdata) { struct timeval tv; AvahiServer *avahi = userdata; avahi_server_dump(avahi, dump_line, NULL); avahi_elapse_time(&tv, 5000, 0); poll_api->timeout_update(timeout, &tv); } static const char *browser_event_to_string(AvahiBrowserEvent event) { switch (event) { case AVAHI_BROWSER_NEW : return "NEW"; case AVAHI_BROWSER_REMOVE : return "REMOVE"; case AVAHI_BROWSER_CACHE_EXHAUSTED : return "CACHE_EXHAUSTED"; case AVAHI_BROWSER_ALL_FOR_NOW : return "ALL_FOR_NOW"; case AVAHI_BROWSER_FAILURE : return "FAILURE"; } abort(); } static const char *resolver_event_to_string(AvahiResolverEvent event) { switch (event) { case AVAHI_RESOLVER_FOUND: return "FOUND"; case AVAHI_RESOLVER_FAILURE: return "FAILURE"; } abort(); } static void record_browser_callback( AvahiSRecordBrowser *r, AvahiIfIndex interface, AvahiProtocol protocol, AvahiBrowserEvent event, AvahiRecord *record, AVAHI_GCC_UNUSED AvahiLookupResultFlags flags, AVAHI_GCC_UNUSED void* userdata) { char *t; assert(r); if (record) { avahi_log_debug("RB: record [%s] on %i.%i is %s", t = avahi_record_to_string(record), interface, protocol, browser_event_to_string(event)); avahi_free(t); } else avahi_log_debug("RB: [%s]", browser_event_to_string(event)); } static void remove_entries(void); static void create_entries(int new_name); static void entry_group_callback(AVAHI_GCC_UNUSED AvahiServer *s, AVAHI_GCC_UNUSED AvahiSEntryGroup *g, AvahiEntryGroupState state, AVAHI_GCC_UNUSED void* userdata) { avahi_log_debug("entry group state: %i", state); if (state == AVAHI_ENTRY_GROUP_COLLISION) { remove_entries(); create_entries(1); avahi_log_debug("Service name conflict, retrying with <%s>", service_name); } else if (state == AVAHI_ENTRY_GROUP_ESTABLISHED) { avahi_log_debug("Service established under name <%s>", service_name); } } static void server_callback(AvahiServer *s, AvahiServerState state, AVAHI_GCC_UNUSED void* userdata) { server = s; avahi_log_debug("server state: %i", state); if (state == AVAHI_SERVER_RUNNING) { avahi_log_debug("Server startup complete. Host name is <%s>. Service cookie is %u", avahi_server_get_host_name_fqdn(s), avahi_server_get_local_service_cookie(s)); create_entries(0); } else if (state == AVAHI_SERVER_COLLISION) { char *n; remove_entries(); n = avahi_alternative_host_name(avahi_server_get_host_name(s)); avahi_log_debug("Host name conflict, retrying with <%s>", n); avahi_server_set_host_name(s, n); avahi_free(n); } } static void remove_entries(void) { if (group) avahi_s_entry_group_reset(group); } static void create_entries(int new_name) { AvahiAddress a; AvahiRecord *r; remove_entries(); if (!group) group = avahi_s_entry_group_new(server, entry_group_callback, NULL); assert(avahi_s_entry_group_is_empty(group)); if (!service_name) service_name = avahi_strdup("Test Service"); else if (new_name) { char *n = avahi_alternative_service_name(service_name); avahi_free(service_name); service_name = n; } if (avahi_server_add_service(server, group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, service_name, "_http._tcp", NULL, NULL, 80, "foo", NULL) < 0) { avahi_log_error("Failed to add HTTP service"); goto fail; } if (avahi_server_add_service(server, group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, service_name, "_ftp._tcp", NULL, NULL, 21, "foo", NULL) < 0) { avahi_log_error("Failed to add FTP service"); goto fail; } if (avahi_server_add_service(server, group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0,service_name, "_webdav._tcp", NULL, NULL, 80, "foo", NULL) < 0) { avahi_log_error("Failed to add WEBDAV service"); goto fail; } if (avahi_server_add_dns_server_address(server, group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, NULL, AVAHI_DNS_SERVER_RESOLVE, avahi_address_parse("192.168.50.1", AVAHI_PROTO_UNSPEC, &a), 53) < 0) { avahi_log_error("Failed to add new DNS Server address"); goto fail; } r = avahi_record_new_full("cname.local", AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_CNAME, AVAHI_DEFAULT_TTL); r->data.cname.name = avahi_strdup("cocaine.local"); if (avahi_server_add(server, group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, r) < 0) { avahi_record_unref(r); avahi_log_error("Failed to add CNAME record"); goto fail; } avahi_record_unref(r); avahi_s_entry_group_commit(group); return; fail: if (group) avahi_s_entry_group_free(group); group = NULL; } static void hnr_callback( AVAHI_GCC_UNUSED AvahiSHostNameResolver *r, AvahiIfIndex iface, AvahiProtocol protocol, AvahiResolverEvent event, const char *hostname, const AvahiAddress *a, AVAHI_GCC_UNUSED AvahiLookupResultFlags flags, AVAHI_GCC_UNUSED void* userdata) { char t[AVAHI_ADDRESS_STR_MAX]; if (a) avahi_address_snprint(t, sizeof(t), a); avahi_log_debug("HNR: (%i.%i) <%s> -> %s [%s]", iface, protocol, hostname, a ? t : "n/a", resolver_event_to_string(event)); } static void ar_callback( AVAHI_GCC_UNUSED AvahiSAddressResolver *r, AvahiIfIndex iface, AvahiProtocol protocol, AvahiResolverEvent event, const AvahiAddress *a, const char *hostname, AVAHI_GCC_UNUSED AvahiLookupResultFlags flags, AVAHI_GCC_UNUSED void* userdata) { char t[AVAHI_ADDRESS_STR_MAX]; avahi_address_snprint(t, sizeof(t), a); avahi_log_debug("AR: (%i.%i) %s -> <%s> [%s]", iface, protocol, t, hostname ? hostname : "n/a", resolver_event_to_string(event)); } static void db_callback( AVAHI_GCC_UNUSED AvahiSDomainBrowser *b, AvahiIfIndex iface, AvahiProtocol protocol, AvahiBrowserEvent event, const char *domain, AVAHI_GCC_UNUSED AvahiLookupResultFlags flags, AVAHI_GCC_UNUSED void* userdata) { avahi_log_debug("DB: (%i.%i) <%s> [%s]", iface, protocol, domain ? domain : "NULL", browser_event_to_string(event)); } static void stb_callback( AVAHI_GCC_UNUSED AvahiSServiceTypeBrowser *b, AvahiIfIndex iface, AvahiProtocol protocol, AvahiBrowserEvent event, const char *service_type, const char *domain, AVAHI_GCC_UNUSED AvahiLookupResultFlags flags, AVAHI_GCC_UNUSED void* userdata) { avahi_log_debug("STB: (%i.%i) %s in <%s> [%s]", iface, protocol, service_type ? service_type : "NULL", domain ? domain : "NULL", browser_event_to_string(event)); } static void sb_callback( AVAHI_GCC_UNUSED AvahiSServiceBrowser *b, AvahiIfIndex iface, AvahiProtocol protocol, AvahiBrowserEvent event, const char *name, const char *service_type, const char *domain, AVAHI_GCC_UNUSED AvahiLookupResultFlags flags, AVAHI_GCC_UNUSED void* userdata) { avahi_log_debug("SB: (%i.%i) <%s> as %s in <%s> [%s]", iface, protocol, name ? name : "NULL", service_type ? service_type : "NULL", domain ? domain : "NULL", browser_event_to_string(event)); } static void sr_callback( AVAHI_GCC_UNUSED AvahiSServiceResolver *r, AvahiIfIndex iface, AvahiProtocol protocol, AvahiResolverEvent event, const char *name, const char*service_type, const char*domain_name, const char*hostname, const AvahiAddress *a, uint16_t port, AvahiStringList *txt, AVAHI_GCC_UNUSED AvahiLookupResultFlags flags, AVAHI_GCC_UNUSED void* userdata) { if (event != AVAHI_RESOLVER_FOUND) avahi_log_debug("SR: (%i.%i) <%s> as %s in <%s> [%s]", iface, protocol, name, service_type, domain_name, resolver_event_to_string(event)); else { char t[AVAHI_ADDRESS_STR_MAX], *s; avahi_address_snprint(t, sizeof(t), a); s = avahi_string_list_to_string(txt); avahi_log_debug("SR: (%i.%i) <%s> as %s in <%s>: %s/%s:%i (%s) [%s]", iface, protocol, name, service_type, domain_name, hostname, t, port, s, resolver_event_to_string(event)); avahi_free(s); } } static void dsb_callback( AVAHI_GCC_UNUSED AvahiSDNSServerBrowser *b, AvahiIfIndex iface, AvahiProtocol protocol, AvahiBrowserEvent event, const char*hostname, const AvahiAddress *a, uint16_t port, AVAHI_GCC_UNUSED AvahiLookupResultFlags flags, AVAHI_GCC_UNUSED void* userdata) { char t[AVAHI_ADDRESS_STR_MAX] = "n/a"; if (a) avahi_address_snprint(t, sizeof(t), a); avahi_log_debug("DSB: (%i.%i): %s/%s:%i [%s]", iface, protocol, hostname ? hostname : "NULL", t, port, browser_event_to_string(event)); } int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char *argv[]) { AvahiSRecordBrowser *r; AvahiSHostNameResolver *hnr; AvahiSAddressResolver *ar; AvahiKey *k; AvahiServerConfig config; AvahiAddress a; AvahiSDomainBrowser *db; AvahiSServiceTypeBrowser *stb; AvahiSServiceBrowser *sb; AvahiSServiceResolver *sr; AvahiSDNSServerBrowser *dsb; AvahiSimplePoll *simple_poll; int error; struct timeval tv; simple_poll = avahi_simple_poll_new(); poll_api = avahi_simple_poll_get(simple_poll); avahi_server_config_init(&config); avahi_address_parse("192.168.50.1", AVAHI_PROTO_UNSPEC, &config.wide_area_servers[0]); config.n_wide_area_servers = 1; config.enable_wide_area = 1; server = avahi_server_new(poll_api, &config, server_callback, NULL, &error); avahi_server_config_free(&config); k = avahi_key_new("_http._tcp.0pointer.de", AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_PTR); r = avahi_s_record_browser_new(server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, k, 0, record_browser_callback, NULL); avahi_key_unref(k); hnr = avahi_s_host_name_resolver_new(server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, "cname.local", AVAHI_PROTO_UNSPEC, 0, hnr_callback, NULL); ar = avahi_s_address_resolver_new(server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, avahi_address_parse("192.168.50.1", AVAHI_PROTO_INET, &a), 0, ar_callback, NULL); db = avahi_s_domain_browser_new(server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, NULL, AVAHI_DOMAIN_BROWSER_BROWSE, 0, db_callback, NULL); stb = avahi_s_service_type_browser_new(server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, NULL, 0, stb_callback, NULL); sb = avahi_s_service_browser_new(server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, "_http._tcp", NULL, 0, sb_callback, NULL); sr = avahi_s_service_resolver_new(server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, "Ecstasy HTTP", "_http._tcp", "local", AVAHI_PROTO_UNSPEC, 0, sr_callback, NULL); dsb = avahi_s_dns_server_browser_new(server, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, "local", AVAHI_DNS_SERVER_RESOLVE, AVAHI_PROTO_UNSPEC, 0, dsb_callback, NULL); avahi_elapse_time(&tv, 1000*5, 0); poll_api->timeout_new(poll_api, &tv, dump_timeout_callback, server); avahi_elapse_time(&tv, 1000*60, 0); poll_api->timeout_new(poll_api, &tv, quit_timeout_callback, simple_poll); avahi_simple_poll_loop(simple_poll); avahi_s_record_browser_free(r); avahi_s_host_name_resolver_free(hnr); avahi_s_address_resolver_free(ar); avahi_s_service_type_browser_free(stb); avahi_s_service_browser_free(sb); avahi_s_service_resolver_free(sr); avahi_s_dns_server_browser_free(dsb); if (group) avahi_s_entry_group_free(group); if (server) avahi_server_free(server); if (simple_poll) avahi_simple_poll_free(simple_poll); avahi_free(service_name); return 0; }