| lwIP
    2.1.2
    Lightweight IP stack | 
| Data Fields | |
| struct mdns_domain | txtdata | 
| char | name [63+1] | 
| char | service [63+1] | 
| service_get_txt_fn_t | txt_fn | 
| u32_t | dns_ttl | 
| u16_t | proto | 
| u16_t | port | 
Description of a service
| u32_t mdns_service::dns_ttl | 
TTL in seconds of SRV/TXT replies
| char mdns_service::name[63+1] | 
Name of service, like 'myweb'
| u16_t mdns_service::port | 
Port of the service
| u16_t mdns_service::proto | 
Protocol, TCP or UDP
| char mdns_service::service[63+1] | 
Type of service, like '_http'
| service_get_txt_fn_t mdns_service::txt_fn | 
Callback function and userdata to update txtdata buffer
| struct mdns_domain mdns_service::txtdata | 
TXT record to answer with