22 lines
		
	
	
		
			777 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			22 lines
		
	
	
		
			777 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
(function (exports) {
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'use strict';
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// Pointer records are the opposite of A and AAAA and are
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// used in Reverse Map zone files to map an IP address (IPv4 or IPv6)
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// to a host name.
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// FORMAT:
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// name   ttl   class   rr     name
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// foo.   15    IN      PTR    www.example.com.
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var unpackLabels = exports.DNS_UNPACK_LABELS || require('../dns.unpack-labels.js').DNS_UNPACK_LABELS;
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exports.DNS_PARSER_TYPE_PTR = function (ab, pack, record) {
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  var labelInfo = unpackLabels(new Uint8Array(ab), record.rdstart, { byteLength: 0, cpcount: 0, labels: [], name: '' });
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  if (record.trunc) {
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    throw new Error("RDATA type PTR must be `null`-terminated, not truncated by rdata length.");
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  }
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  record.data = labelInfo.name;
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};
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}('undefined' !== typeof window ? window : exports));
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