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75 lines
2.5 KiB
C++
75 lines
2.5 KiB
C++
/*
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ESP8266 Multicast DNS (port of CC3000 Multicast DNS library)
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Version 1.1
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Copyright (c) 2013 Tony DiCola (tony@tonydicola.com)
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ESP8266 port (c) 2015 Ivan Grokhotkov (ivan@esp8266.com)
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This is a simple implementation of multicast DNS query support for an Arduino
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running on ESP8266 chip. Only support for resolving address queries is currently
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implemented.
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Requirements:
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- ESP8266WiFi library
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Usage:
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- Include the ESP8266 Multicast DNS library in the sketch.
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- Create an instance of the MDNSResponder class.
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- Call the begin method in the sketch's setup and provide a domain name (without
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the '.local' suffix, i.e. just provide 'foo' to resolve 'foo.local'), and the
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Adafruit CC3000 class instance. Optionally provide a time to live (in seconds)
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for the DNS record--the default is 1 hour.
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- Call the update method in each iteration of the sketch's loop function.
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License (MIT license):
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#ifndef ESP8266MDNS_H
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#define ESP8266MDNS_H
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#include "ESP8266WiFi.h"
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#include "WiFiUdp.h"
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class UdpContext;
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class MDNSResponder {
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public:
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MDNSResponder();
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~MDNSResponder();
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bool begin(const char* domain, IPAddress addr, uint32_t ttlSeconds = 3600);
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void update();
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private:
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// Expected query values
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uint8_t* _expected;
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int _expectedLen;
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// Current parsing state
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int _index;
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// Response data
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uint8_t* _response;
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int _responseLen;
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// Socket for MDNS communication
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UdpContext* _conn;
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// local IP Address
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IPAddress _localAddr;
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};
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#endif //ESP8266MDNS_H
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