X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=examples%2Fclient-publish-service.c;h=d99c46b351cb9060f602bbd92e735d9628c3ecc2;hb=8d83c6ca359d27f7c90ba874add798d064e58bc2;hp=c3f11added056dba099252a141b9055ad93fa3e2;hpb=424aefe8a431b79496672799dc4f4430fa935252;p=catta diff --git a/examples/client-publish-service.c b/examples/client-publish-service.c index c3f11ad..d99c46b 100644 --- a/examples/client-publish-service.c +++ b/examples/client-publish-service.c @@ -29,6 +29,8 @@ #include #include +#include + #include #include #include @@ -45,22 +47,36 @@ static void entry_group_callback(AvahiEntryGroup *g, AvahiEntryGroupState state, /* Called whenever the entry group state changes */ - if (state == AVAHI_ENTRY_GROUP_ESTABLISHED) - /* The entry group has been established successfully */ - fprintf(stderr, "Service '%s' successfully established.\n", name); - - else if (state == AVAHI_ENTRY_GROUP_COLLISION) { - char *n; + switch (state) { + case AVAHI_ENTRY_GROUP_ESTABLISHED : + /* The entry group has been established successfully */ + fprintf(stderr, "Service '%s' successfully established.\n", name); + break; - /* A service name collision happened. Let's pick a new name */ - n = avahi_alternative_service_name(name); - avahi_free(name); - name = n; + case AVAHI_ENTRY_GROUP_COLLISION : { + char *n; + + /* A service name collision 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, "Service name collision, renaming service to '%s'\n", name); + /* Some kind of failure happened while we were registering our services */ + avahi_simple_poll_quit(simple_poll); + break; - /* And recreate the services */ - create_services(avahi_entry_group_get_client(g)); + case AVAHI_ENTRY_GROUP_UNCOMMITED: + case AVAHI_ENTRY_GROUP_REGISTERING: + ; } } @@ -70,15 +86,14 @@ static void create_services(AvahiClient *c) { assert(c); /* If this is the first time we're called, let's create a new entry group */ - if (!group) { + 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; } - } fprintf(stderr, "Adding service '%s'\n", name); - + /* Create some random TXT data */ snprintf(r, sizeof(r), "random=%i", rand()); @@ -94,6 +109,12 @@ static void create_services(AvahiClient *c) { 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)); @@ -104,7 +125,6 @@ static void create_services(AvahiClient *c) { fail: avahi_simple_poll_quit(simple_poll); - return; } static void client_callback(AvahiClient *c, AvahiClientState state, void * userdata) { @@ -112,22 +132,35 @@ static void client_callback(AvahiClient *c, AvahiClientState state, void * userd /* Called whenever the client or server state changes */ - if (state == AVAHI_CLIENT_S_RUNNING) - /* The serve has startup successfully and registered its host - * name on the network, so it's time to create our services */ - create_services(c); - - else if (state == 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. */ - if (group) - avahi_entry_group_reset(group); + 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 */ + if (!group) + create_services(c); + break; + + case AVAHI_CLIENT_S_COLLISION: - } else if (state == AVAHI_CLIENT_DISCONNECTED) { + /* 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. */ + if (group) + avahi_entry_group_reset(group); + break; + + case AVAHI_CLIENT_DISCONNECTED: - fprintf(stderr, "Server connection terminated.\n"); - avahi_simple_poll_quit(simple_poll); + fprintf(stderr, "Server connection terminated.\n"); + avahi_simple_poll_quit(simple_poll); + + break; + + case AVAHI_CLIENT_S_FAILURE: + case AVAHI_CLIENT_S_INVALID: + case AVAHI_CLIENT_S_REGISTERING: + ; } } @@ -152,19 +185,15 @@ int main(int argc, char*argv[]) { fprintf(stderr, "Failed to create client: %s\n", avahi_strerror(error)); goto fail; } - + /* Run the main loop */ - for (;;) - if (avahi_simple_poll_iterate(simple_poll, -1) != 0) - break; + avahi_simple_poll_loop(simple_poll); ret = 0; fail: /* Cleanup things */ - if (group) - avahi_entry_group_free(group); if (client) avahi_client_free(client);