12 lines
353 B
JavaScript
12 lines
353 B
JavaScript
/* jshint node: true */
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var execFile = require('child_process').execFile;
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module.exports = function (iface, callback) {
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execFile("/bin/cat", ["/sys/class/net/" + iface + "/address"], function (err, out) {
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if (err) {
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callback(err, null);
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return;
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}
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callback(null, out.trim().toLowerCase());
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});
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};
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