+ if (!avahi_valid_service_name(name))
+ return avahi_server_set_errno(s, AVAHI_ERR_INVALID_SERVICE_NAME);
+
+ if (!avahi_valid_service_type(type))
+ return avahi_server_set_errno(s, AVAHI_ERR_INVALID_SERVICE_TYPE);
+
+ if (domain && !avahi_valid_domain_name(domain))
+ return avahi_server_set_errno(s, AVAHI_ERR_INVALID_DOMAIN_NAME);
+
+ if (host && !avahi_valid_domain_name(host))
+ return avahi_server_set_errno(s, AVAHI_ERR_INVALID_HOST_NAME);
+
+ if (port == 0)
+ return avahi_server_set_errno(s, AVAHI_ERR_INVALID_PORT);
+