From ae1448cd052749676d8b02117d790a2fb9bab6b5 Mon Sep 17 00:00:00 2001
From: A C SREEDHAR REDDY <acreddysreedharreddy@gmail.com>
Date: Thu, 5 Jul 2018 19:55:33 +0530
Subject: [PATCH 1/3] issue #4893

---
 libraries/ESP8266mDNS/ESP8266mDNS.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/libraries/ESP8266mDNS/ESP8266mDNS.cpp b/libraries/ESP8266mDNS/ESP8266mDNS.cpp
index 2344b0833c..851693a29f 100644
--- a/libraries/ESP8266mDNS/ESP8266mDNS.cpp
+++ b/libraries/ESP8266mDNS/ESP8266mDNS.cpp
@@ -289,7 +289,15 @@ int MDNSResponder::queryService(char *service, char *proto) {
 #ifdef DEBUG_ESP_MDNS_TX
   DEBUG_ESP_PORT.printf("queryService %s %s\n", service, proto);
 #endif  
-  
+  MDNSAnswer *answer;
+  int numAnswers = _getNumAnswers();
+  for (int n = numAnswers - 1; n >= 0; n--) {
+    answer = _getAnswerFromIdx(n);
+    os_free(answer->hostname);
+    os_free(answer);
+    answer = 0;
+  }
+  _answers = 0;
   if (_query != 0) {
     os_free(_query);
     _query = 0;

From da0d55f8b10477d45075bc3e3dd736c8b5746beb Mon Sep 17 00:00:00 2001
From: A C SREEDHAR REDDY <acreddysreedharreddy@gmail.com>
Date: Fri, 6 Jul 2018 07:22:55 +0530
Subject: [PATCH 2/3] issue #4893

cleared the linkedlist.
---
 libraries/ESP8266mDNS/ESP8266mDNS.cpp | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/libraries/ESP8266mDNS/ESP8266mDNS.cpp b/libraries/ESP8266mDNS/ESP8266mDNS.cpp
index 851693a29f..fc37ac1e64 100644
--- a/libraries/ESP8266mDNS/ESP8266mDNS.cpp
+++ b/libraries/ESP8266mDNS/ESP8266mDNS.cpp
@@ -289,13 +289,12 @@ int MDNSResponder::queryService(char *service, char *proto) {
 #ifdef DEBUG_ESP_MDNS_TX
   DEBUG_ESP_PORT.printf("queryService %s %s\n", service, proto);
 #endif  
-  MDNSAnswer *answer;
-  int numAnswers = _getNumAnswers();
-  for (int n = numAnswers - 1; n >= 0; n--) {
-    answer = _getAnswerFromIdx(n);
-    os_free(answer->hostname);
-    os_free(answer);
-    answer = 0;
+  while(_answers!=0){
+    MDNSAnswer *currAnswer = _answers;
+    _answers = _answers->next;
+    os_free(currAnswer->hostname);
+    os_free(currAnswer);
+    currAnswer = 0;
   }
   _answers = 0;
   if (_query != 0) {

From 010c95246152d12f435e241261f0fa9e9a82217d Mon Sep 17 00:00:00 2001
From: A C SREEDHAR REDDY <acreddysreedharreddy@gmail.com>
Date: Fri, 6 Jul 2018 07:25:50 +0530
Subject: [PATCH 3/3] issue #4893

---
 libraries/ESP8266mDNS/ESP8266mDNS.cpp | 1 -
 1 file changed, 1 deletion(-)

diff --git a/libraries/ESP8266mDNS/ESP8266mDNS.cpp b/libraries/ESP8266mDNS/ESP8266mDNS.cpp
index fc37ac1e64..c754a2b8cf 100644
--- a/libraries/ESP8266mDNS/ESP8266mDNS.cpp
+++ b/libraries/ESP8266mDNS/ESP8266mDNS.cpp
@@ -296,7 +296,6 @@ int MDNSResponder::queryService(char *service, char *proto) {
     os_free(currAnswer);
     currAnswer = 0;
   }
-  _answers = 0;
   if (_query != 0) {
     os_free(_query);
     _query = 0;