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mDNS: Updated APIs description and shows the warning when hostname contains domain name during the query

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Closes https://github.com/espressif/esp-idf/issues/6590


* Original commit: espressif/esp-idf@9f8d2b944d
This commit is contained in:
suren.gabrielyan
2021-02-26 18:28:57 +04:00
committed by suren-gabrielyan-espressif
parent eda5d72acf
commit 22c7c0a195
2 changed files with 12 additions and 0 deletions
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4
components/mdns/include/mdns.h
View File

@ -343,6 +343,8 @@ esp_err_t mdns_query_a(const char * host_name, uint32_t timeout, esp_ip4_addr_t
/** /**
* @brief Query mDNS for A record * @brief Query mDNS for A record
* *
* Please note that hostname must not contain domain name, as mDNS uses '.local' domain.
*
* @param host_name host name to look for * @param host_name host name to look for
* @param timeout time in milliseconds to wait for answer. If 0, max_results needs to be defined * @param timeout time in milliseconds to wait for answer. If 0, max_results needs to be defined
* @param addr pointer to the resulting IP6 address * @param addr pointer to the resulting IP6 address
@ -361,6 +363,8 @@ esp_err_t mdns_query_aaaa(const char * host_name, uint32_t timeout, esp_ip6_addr
* This method controls the service state on all active interfaces and applications are required * This method controls the service state on all active interfaces and applications are required
* to call it from the system event handler for normal operation of mDNS service. * to call it from the system event handler for normal operation of mDNS service.
* *
* Please note that hostname must not contain domain name, as mDNS uses '.local' domain.
*
* @param ctx The system event context * @param ctx The system event context
* @param event The system event * @param event The system event
*/ */

8
components/mdns/mdns.c
View File

@ -4819,6 +4819,10 @@ esp_err_t mdns_query_a(const char * name, uint32_t timeout, esp_ip4_addr_t * add
return ESP_ERR_INVALID_ARG; return ESP_ERR_INVALID_ARG;
} }
if (strstr(name, ".local")) {
ESP_LOGW(TAG, "Please note that hostname must not contain domain name, as mDNS uses '.local' domain");
}
err = mdns_query(name, NULL, NULL, MDNS_TYPE_A, timeout, 1, &result); err = mdns_query(name, NULL, NULL, MDNS_TYPE_A, timeout, 1, &result);
if (err) { if (err) {
@ -4853,6 +4857,10 @@ esp_err_t mdns_query_aaaa(const char * name, uint32_t timeout, esp_ip6_addr_t *
return ESP_ERR_INVALID_ARG; return ESP_ERR_INVALID_ARG;
} }
if (strstr(name, ".local")) {
ESP_LOGW(TAG, "Please note that hostname must not contain domain name, as mDNS uses '.local' domain");
}
err = mdns_query(name, NULL, NULL, MDNS_TYPE_AAAA, timeout, 1, &result); err = mdns_query(name, NULL, NULL, MDNS_TYPE_AAAA, timeout, 1, &result);
if (err) { if (err) {