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56 lines
1.3 KiB
56 lines
1.3 KiB
var events = require('events');
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exports.resolve = function (domain, type_, callback_) {
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var type, callback;
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if (typeof(type_) == 'string') {
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type = type_;
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callback = callback_;
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} else {
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type = 'A';
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callback = arguments[1];
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}
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var resolveFunc = resolveMap[type];
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if (typeof(resolveFunc) == 'function') {
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resolveFunc(domain, callback);
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} else {
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throw new Error('Unknown type "' + type + '"');
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}
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}
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exports.resolve4 = process.dns.resolve4;
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exports.resolve6 = process.dns.resolve6;
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exports.resolveMx = process.dns.resolveMx;
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exports.resolveTxt = process.dns.resolveTxt;
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exports.resolveSrv = process.dns.resolveSrv;
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exports.reverse = process.dns.reverse;
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// ERROR CODES
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// timeout, SERVFAIL or similar.
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exports.TEMPFAIL = process.dns.TEMPFAIL;
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// got garbled reply.
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exports.PROTOCOL = process.dns.PROTOCOL;
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// domain does not exists.
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exports.NXDOMAIN = process.dns.NXDOMAIN;
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// domain exists but no data of reqd type.
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exports.NODATA = process.dns.NODATA;
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// out of memory while processing.
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exports.NOMEM = process.dns.NOMEM;
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// the query is malformed.
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exports.BADQUERY = process.dns.BADQUERY;
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var resolveMap = {
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'A': exports.resolve4,
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'AAAA': exports.resolve6,
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'MX': exports.resolveMx,
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'TXT': exports.resolveTxt,
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'SRV': exports.resolveSrv,
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'PTR': exports.reverse,
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};
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