feat(mdns_example): Sync code from esp-idf

Commit ID: 2f8508c7

Author: dongheng

examples/protocols/mdns/CMakeLists.txt

@@ -1,6 +1,6 @@
-# The following five lines of boilerplate have to be in your project's
-# CMakeLists in this exact order for cmake to work correctly
+# The following lines of boilerplate have to be in your project's CMakeLists
+# in this exact order for cmake to work correctly
 cmake_minimum_required(VERSION 3.5)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
-project(mdns)
+project(mdns-test)

examples/protocols/mdns/main/CMakeLists.txt

@@ -1,3 +1,4 @@
 set(COMPONENT_SRCS "mdns_example_main.c")
+set(COMPONENT_ADD_INCLUDEDIRS ".")
 
 register_component()

examples/protocols/mdns/main/Kconfig.projbuild

@@ -8,7 +8,7 @@ config WIFI_SSID
 
 config WIFI_PASSWORD
     string "WiFi Password"
-	default "myssid"
+	default "mypassword"
 	help
 		WiFi password (WPA or WPA2) for the example to use.
 
@@ -26,4 +26,4 @@ config MDNS_INSTANCE
 	help
 		mDNS Instance Name for example to use
 
-endmenu
+endmenu

examples/protocols/mdns/main/mdns_example_main.c

@@ -137,13 +137,13 @@ static void mdns_print_results(mdns_result_t * results){
         if(r->txt_count){
             printf("  TXT : [%u] ", r->txt_count);
             for(t=0; t<r->txt_count; t++){
-                printf("%s=%s; ", r->txt[t].key, r->txt[t].value);
+                printf("%s=%s; ", r->txt[t].key, r->txt[t].value?r->txt[t].value:"NULL");
             }
             printf("\n");
         }
         a = r->addr;
         while(a){
-            if(a->addr.type == MDNS_IP_PROTOCOL_V6){
+            if(a->addr.type == IPADDR_TYPE_V6){
                 printf("  AAAA: " IPV6STR "\n", IPV62STR(a->addr.u_addr.ip6));
             } else {
                 printf("  A   : " IPSTR "\n", IP2STR(&(a->addr.u_addr.ip4)));
@@ -162,7 +162,7 @@ static void query_mdns_service(const char * service_name, const char * proto)
     mdns_result_t * results = NULL;
     esp_err_t err = mdns_query_ptr(service_name, proto, 3000, 20,  &results);
     if(err){
-        ESP_LOGE(TAG, "Query Failed");
+        ESP_LOGE(TAG, "Query Failed: %s", esp_err_to_name(err));
         return;
     }
     if(!results){
@@ -184,10 +184,10 @@ static void query_mdns_host(const char * host_name)
     esp_err_t err = mdns_query_a(host_name, 2000,  &addr);
     if(err){
         if(err == ESP_ERR_NOT_FOUND){
-            ESP_LOGW(TAG, "Host was not found!");
+            ESP_LOGW(TAG, "%s: Host was not found!", esp_err_to_name(err));
             return;
         }
-        ESP_LOGE(TAG, "Query Failed");
+        ESP_LOGE(TAG, "Query Failed: %s", esp_err_to_name(err));
         return;
     }