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mdns : Add mdns_build_subtype_service_domain() function that build a domain name of subtype service

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This commit is contained in:
Abdellatif IDIRY 2021-10-25 10:45:22 +02:00
parent 9ba785ab3d
commit 2355f4bb24
3 changed files with 28 additions and 2 deletions
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26
src/apps/mdns/mdns_domain.c
View File

@ -632,4 +632,30 @@ mdns_write_domain(struct mdns_outpacket *outpkt, struct mdns_domain *domain)
return ERR_OK;
}
/**
* Build domain name for a subtype service
* @param domain Where to write the domain name
* @param service The service struct, containing service name, type and protocol
* @param include_name Whether to include the service name in the domain
* @return ERR_OK if domain was written. If service name is included,
* \<subType\>.\<_sub\>.\<type\>.\<proto\>.local. will be written, otherwise \<type\>.\<proto\>.local.
* An err_t is returned on error.
*/
err_t
mdns_build_subtype_service_domain(struct mdns_domain *domain, struct mdns_service *service, int subTypes_index)
{
err_t res;
LWIP_UNUSED_ARG(res);
memset(domain, 0, sizeof(struct mdns_domain));
res = mdns_domain_add_label(domain, service->subTypes[subTypes_index], strlen(service->subTypes[subTypes_index]));
LWIP_ERROR("mdns_build_service_domain: Failed to add label", (res == ERR_OK), return res);
res = mdns_domain_add_label(domain, "_sub", 4);
LWIP_ERROR("mdns_build_service_domain: Failed to add label", (res == ERR_OK), return res);
res = mdns_domain_add_label(domain, service->service, (u8_t)strlen(service->service));
LWIP_ERROR("mdns_build_service_domain: Failed to add label", (res == ERR_OK), return res);
res = mdns_domain_add_label(domain, dnssd_protos[service->proto], (u8_t)strlen(dnssd_protos[service->proto]));
LWIP_ERROR("mdns_build_service_domain: Failed to add label", (res == ERR_OK), return res);
return mdns_add_dotlocal(domain);
}
#endif /* LWIP_MDNS_RESPONDER */

2
src/include/lwip/apps/mdns.h
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@ -112,7 +112,7 @@ err_t mdns_resp_remove_netif(struct netif *netif);
err_t mdns_resp_rename_netif(struct netif *netif, const char *hostname);
int mdns_resp_netif_active(struct netif *netif);
s8_t mdns_resp_add_service(struct netif *netif, const char *name, const char *service, enum mdns_sd_proto proto, u16_t port, service_get_txt_fn_t txt_fn, void *txt_data, char **subTypes, u8_t subtypes_nbr )
s8_t mdns_resp_add_service(struct netif *netif, const char *name, const char *service, enum mdns_sd_proto proto, u16_t port, service_get_txt_fn_t txt_fn, void *txt_data, char **subTypes, u8_t subtypes_nbr );
err_t mdns_resp_del_service(struct netif *netif, u8_t slot);
err_t mdns_resp_rename_service(struct netif *netif, u8_t slot, const char *name);

2
src/include/lwip/apps/mdns_domain.h
View File

@ -70,7 +70,7 @@ err_t mdns_build_request_domain(struct mdns_domain *domain, struct mdns_request
#endif
u16_t mdns_compress_domain(struct pbuf *pbuf, u16_t *offset, struct mdns_domain *domain);
err_t mdns_write_domain(struct mdns_outpacket *outpkt, struct mdns_domain *domain);
err_t mdns_build_subtype_service_domain(struct mdns_domain *domain, struct mdns_service *service, int subTypes_index);
#endif /* LWIP_MDNS_RESPONDER */
#ifdef __cplusplus