309  * Add a label part to a domain
310  * @param domain The domain to add a label to
311  * @param label The label to add, like <hostname>, 'local', 'com' or ''
312  * @param len The length of the label
313  * @return ERR_OK on success, an err_t otherwise if label too long
316 mdns_domain_add_label(struct mdns_domain *domain, const char *label, u8_t len)  in mdns_domain_add_label()  argument
323     MEMCPY(&domain->name[domain->length], label, len);  in mdns_domain_add_label()
330  * Add a label part to a domain (@see mdns_domain_add_label but copy directly from pbuf)
368     /* is this a compressed label? */  in mdns_readname_loop()
391     /* normal label */  in mdns_readname_loop()
527     LWIP_ERROR("mdns_build_reverse_v4_domain: Failed to add label", (res == ERR_OK), return res);  in mdns_build_reverse_v4_domain()
530   LWIP_ERROR("mdns_build_reverse_v4_domain: Failed to add label", (res == ERR_OK), return res);  in mdns_build_reverse_v4_domain()
532   LWIP_ERROR("mdns_build_reverse_v4_domain: Failed to add label", (res == ERR_OK), return res);  in mdns_build_reverse_v4_domain()
534   LWIP_ERROR("mdns_build_reverse_v4_domain: Failed to add label", (res == ERR_OK), return res);  in mdns_build_reverse_v4_domain()
571       LWIP_ERROR("mdns_build_reverse_v6_domain: Failed to add label", (res == ERR_OK), return res);  in mdns_build_reverse_v6_domain()
576   LWIP_ERROR("mdns_build_reverse_v6_domain: Failed to add label", (res == ERR_OK), return res);  in mdns_build_reverse_v6_domain()
578   LWIP_ERROR("mdns_build_reverse_v6_domain: Failed to add label", (res == ERR_OK), return res);  in mdns_build_reverse_v6_domain()
580   LWIP_ERROR("mdns_build_reverse_v6_domain: Failed to add label", (res == ERR_OK), return res);  in mdns_build_reverse_v6_domain()
592   LWIP_ERROR("mdns_add_dotlocal: Failed to add label", (res == ERR_OK), return res);  in mdns_add_dotlocal()
610   LWIP_ERROR("mdns_build_host_domain: Failed to add label", (res == ERR_OK), return res);  in mdns_build_host_domain()
626   LWIP_ERROR("mdns_build_dnssd_domain: Failed to add label", (res == ERR_OK), return res);  in mdns_build_dnssd_domain()
628   LWIP_ERROR("mdns_build_dnssd_domain: Failed to add label", (res == ERR_OK), return res);  in mdns_build_dnssd_domain()
630   LWIP_ERROR("mdns_build_dnssd_domain: Failed to add label", (res == ERR_OK), return res);  in mdns_build_dnssd_domain()
651     LWIP_ERROR("mdns_build_service_domain: Failed to add label", (res == ERR_OK), return res);  in mdns_build_service_domain()
654   LWIP_ERROR("mdns_build_service_domain: Failed to add label", (res == ERR_OK), return res);  in mdns_build_service_domain()
656   LWIP_ERROR("mdns_build_service_domain: Failed to add label", (res == ERR_OK), return res);  in mdns_build_service_domain()
820     /* Skip to next label in domain */  in mdns_compress_domain()