X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=examples%2Fclient-publish-service.c;fp=examples%2Fclient-publish-service.c;h=0000000000000000000000000000000000000000;hb=f1de9dcaab953757252d51b4725cbfa36daa10a5;hp=facc965e0501296ea9bf22024188ebaf8857980a;hpb=7a5b2f69af7d36d6cd4153142f125fa011784e03;p=catta diff --git a/examples/client-publish-service.c b/examples/client-publish-service.c deleted file mode 100644 index facc965..0000000 --- a/examples/client-publish-service.c +++ /dev/null @@ -1,280 +0,0 @@ -/*** - 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 - -static AvahiEntryGroup *group = NULL; -static AvahiSimplePoll *simple_poll = NULL; -static char *name = NULL; - -static void create_services(AvahiClient *c); - -static void entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state, AVAHI_GCC_UNUSED void *userdata) { - assert(g == group || group == NULL); - group = g; - - /* Called whenever the entry group state changes */ - - switch (state) { - case AVAHI_ENTRY_GROUP_ESTABLISHED : - /* The entry group has been established successfully */ - fprintf(stderr, "Service '%s' successfully established.\n", name); - break; - - case AVAHI_ENTRY_GROUP_COLLISION : { - char *n; - - /* A service name collision with a remote service - * happened. Let's pick a new name */ - n = avahi_alternative_service_name(name); - avahi_free(name); - name = n; - - fprintf(stderr, "Service name collision, renaming service to '%s'\n", name); - - /* And recreate the services */ - create_services(avahi_entry_group_get_client(g)); - break; - } - - case AVAHI_ENTRY_GROUP_FAILURE : - - fprintf(stderr, "Entry group failure: %s\n", avahi_strerror(avahi_client_errno(avahi_entry_group_get_client(g)))); - - /* Some kind of failure happened while we were registering our services */ - avahi_simple_poll_quit(simple_poll); - break; - - case AVAHI_ENTRY_GROUP_UNCOMMITED: - case AVAHI_ENTRY_GROUP_REGISTERING: - ; - } -} - -static void create_services(AvahiClient *c) { - char *n, r[128]; - int ret; - assert(c); - - /* If this is the first time we're called, let's create a new - * entry group if necessary */ - - if (!group) - if (!(group = avahi_entry_group_new(c, entry_group_callback, NULL))) { - fprintf(stderr, "avahi_entry_group_new() failed: %s\n", avahi_strerror(avahi_client_errno(c))); - goto fail; - } - - /* If the group is empty (either because it was just created, or - * because it was reset previously, add our entries. */ - - if (avahi_entry_group_is_empty(group)) { - fprintf(stderr, "Adding service '%s'\n", name); - - /* Create some random TXT data */ - snprintf(r, sizeof(r), "random=%i", rand()); - - /* We will now add two services and one subtype to the entry - * group. The two services have the same name, but differ in - * the service type (IPP vs. BSD LPR). Only services with the - * same name should be put in the same entry group. */ - - /* Add the service for IPP */ - if ((ret = avahi_entry_group_add_service(group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, name, "_ipp._tcp", NULL, NULL, 651, "test=blah", r, NULL)) < 0) { - - if (ret == AVAHI_ERR_COLLISION) - goto collision; - - fprintf(stderr, "Failed to add _ipp._tcp service: %s\n", avahi_strerror(ret)); - goto fail; - } - - /* Add the same service for BSD LPR */ - if ((ret = avahi_entry_group_add_service(group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, name, "_printer._tcp", NULL, NULL, 515, NULL)) < 0) { - - if (ret == AVAHI_ERR_COLLISION) - goto collision; - - fprintf(stderr, "Failed to add _printer._tcp service: %s\n", avahi_strerror(ret)); - goto fail; - } - - /* Add an additional (hypothetic) subtype */ - if ((ret = avahi_entry_group_add_service_subtype(group, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, 0, name, "_printer._tcp", NULL, "_magic._sub._printer._tcp") < 0)) { - fprintf(stderr, "Failed to add subtype _magic._sub._printer._tcp: %s\n", avahi_strerror(ret)); - goto fail; - } - - /* Tell the server to register the service */ - if ((ret = avahi_entry_group_commit(group)) < 0) { - fprintf(stderr, "Failed to commit entry group: %s\n", avahi_strerror(ret)); - goto fail; - } - } - - return; - -collision: - - /* A service name collision with a local service happened. Let's - * pick a new name */ - n = avahi_alternative_service_name(name); - avahi_free(name); - name = n; - - fprintf(stderr, "Service name collision, renaming service to '%s'\n", name); - - avahi_entry_group_reset(group); - - create_services(c); - return; - -fail: - avahi_simple_poll_quit(simple_poll); -} - -static void client_callback(AvahiClient *c, AvahiClientState state, AVAHI_GCC_UNUSED void * userdata) { - assert(c); - - /* Called whenever the client or server state changes */ - - switch (state) { - case AVAHI_CLIENT_S_RUNNING: - - /* The server has startup successfully and registered its host - * name on the network, so it's time to create our services */ - create_services(c); - break; - - case AVAHI_CLIENT_FAILURE: - - fprintf(stderr, "Client failure: %s\n", avahi_strerror(avahi_client_errno(c))); - avahi_simple_poll_quit(simple_poll); - - break; - - case AVAHI_CLIENT_S_COLLISION: - - /* Let's drop our registered services. When the server is back - * in AVAHI_SERVER_RUNNING state we will register them - * again with the new host name. */ - - case AVAHI_CLIENT_S_REGISTERING: - - /* The server records are now being established. This - * might be caused by a host name change. We need to wait - * for our own records to register until the host name is - * properly esatblished. */ - - if (group) - avahi_entry_group_reset(group); - - break; - - case AVAHI_CLIENT_CONNECTING: - ; - } -} - -static void modify_callback(AVAHI_GCC_UNUSED AvahiTimeout *e, void *userdata) { - AvahiClient *client = userdata; - - fprintf(stderr, "Doing some weird modification\n"); - - avahi_free(name); - name = avahi_strdup("Modified MegaPrinter"); - - /* If the server is currently running, we need to remove our - * service and create it anew */ - if (avahi_client_get_state(client) == AVAHI_CLIENT_S_RUNNING) { - - /* Remove the old services */ - if (group) - avahi_entry_group_reset(group); - - /* And create them again with the new name */ - create_services(client); - } -} - -int main(AVAHI_GCC_UNUSED int argc, AVAHI_GCC_UNUSED char*argv[]) { - AvahiClient *client = NULL; - int error; - int ret = 1; - struct timeval tv; - - /* Allocate main loop object */ - if (!(simple_poll = avahi_simple_poll_new())) { - fprintf(stderr, "Failed to create simple poll object.\n"); - goto fail; - } - - name = avahi_strdup("MegaPrinter"); - - /* Allocate a new client */ - client = avahi_client_new(avahi_simple_poll_get(simple_poll), 0, client_callback, NULL, &error); - - /* Check wether creating the client object succeeded */ - if (!client) { - fprintf(stderr, "Failed to create client: %s\n", avahi_strerror(error)); - goto fail; - } - - /* After 10s do some weird modification to the service */ - avahi_simple_poll_get(simple_poll)->timeout_new( - avahi_simple_poll_get(simple_poll), - avahi_elapse_time(&tv, 1000*10, 0), - modify_callback, - client); - - /* Run the main loop */ - avahi_simple_poll_loop(simple_poll); - - ret = 0; - -fail: - - /* Cleanup things */ - - if (client) - avahi_client_free(client); - - if (simple_poll) - avahi_simple_poll_free(simple_poll); - - avahi_free(name); - - return ret; -}