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AvahiSDomainBrowser* avahi_s_domain_browser_new ( AvahiServer server,
AvahiIfIndex  interface,
AvahiProtocol  protocol,
const char *  domain,
AvahiDomainBrowserType  type,
AvahiLookupFlags  flags,
AvahiSDomainBrowserCallback  callback,
void *  userdata 
)

Create a new AvahiSDomainBrowser object

Parameters:
flags  Lookup flags.

Definition at line 140 of file browse-domain.c.

References AVAHI_DNS_CLASS_IN, AVAHI_DOMAIN_BROWSER_BROWSE, AVAHI_DOMAIN_NAME_MAX, AVAHI_ERR_INVALID_DOMAIN_NAME, AVAHI_ERR_INVALID_FLAGS, AVAHI_ERR_INVALID_INTERFACE, AVAHI_ERR_INVALID_PROTOCOL, AVAHI_ERR_NO_MEMORY, AVAHI_LLIST_PREPEND, AVAHI_LOOKUP_USE_MULTICAST, AVAHI_LOOKUP_USE_WIDE_AREA, and avahi_new.

                    {

    static const char * const type_table[AVAHI_DOMAIN_BROWSER_MAX] = {
        "b",
        "db",
        "r",
        "dr",
        "lb"
    };
    
    AvahiSDomainBrowser *b;
    AvahiKey *k = NULL;
    char n[AVAHI_DOMAIN_NAME_MAX];
    int r;
    
    assert(server);
    assert(callback);

    AVAHI_CHECK_VALIDITY_RETURN_NULL(server, AVAHI_IF_VALID(interface), AVAHI_ERR_INVALID_INTERFACE);
    AVAHI_CHECK_VALIDITY_RETURN_NULL(server, AVAHI_PROTO_VALID(protocol), AVAHI_ERR_INVALID_PROTOCOL);
    AVAHI_CHECK_VALIDITY_RETURN_NULL(server, type < AVAHI_DOMAIN_BROWSER_MAX, AVAHI_ERR_INVALID_FLAGS);
    AVAHI_CHECK_VALIDITY_RETURN_NULL(server, !domain || avahi_is_valid_domain_name(domain), AVAHI_ERR_INVALID_DOMAIN_NAME);
    AVAHI_CHECK_VALIDITY_RETURN_NULL(server, AVAHI_FLAGS_VALID(flags, AVAHI_LOOKUP_USE_WIDE_AREA|AVAHI_LOOKUP_USE_MULTICAST), AVAHI_ERR_INVALID_FLAGS);

    if (!domain)
        domain = server->domain_name;

    if ((r = avahi_service_name_join(n, sizeof(n), type_table[type], "_dns-sd._udp", domain)) < 0) {
        avahi_server_set_errno(server, r);
        return NULL;
    }
    
    if (!(b = avahi_new(AvahiSDomainBrowser, 1))) {
        avahi_server_set_errno(server, AVAHI_ERR_NO_MEMORY);
        return NULL;
    }

    b->ref = 1;
    b->server = server;
    b->callback = callback;
    b->userdata = userdata;
    b->record_browser = NULL;
    b->type = type;
    b->all_for_now_scheduled = 0;
    b->defer_event = NULL;

    AVAHI_LLIST_PREPEND(AvahiSDomainBrowser, browser, server->domain_browsers, b);

    if (!(k = avahi_key_new(n, AVAHI_DNS_CLASS_IN, AVAHI_DNS_TYPE_PTR))) {
        avahi_server_set_errno(server, AVAHI_ERR_NO_MEMORY);
        goto fail;
    }
    
    if (!(b->record_browser = avahi_s_record_browser_new(server, interface, protocol, k, flags, record_browser_callback, b)))
        goto fail;
    
    avahi_key_unref(k);

    if (type == AVAHI_DOMAIN_BROWSER_BROWSE && b->server->config.browse_domains)
        b->defer_event = avahi_time_event_new(server->time_event_queue, NULL, defer_callback, b);
    
    return b;
    
fail:
    
    if (k)
        avahi_key_unref(k);
    
    avahi_s_domain_browser_free(b);
    
    return NULL;
}


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