30 lines
548 B
JavaScript
30 lines
548 B
JavaScript
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function padded_length(len)
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{
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return ((len + 3) >> 2) << 2;
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/*
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var rem = len % 4;
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var pl = len;
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if (rem)
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return len + 4 - rem;
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return len;
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*/
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}
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// TODO: make it return buffer?
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// str += is slow
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function padded_string(str)
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{
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if (str.length == 0)
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return '';
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var pad = padded_length(str.length) - str.length;
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var res = str;
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for (var i=0; i < pad; ++i)
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res += String.fromCharCode(0);
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return res;
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}
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module.exports.padded_length = padded_length;
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module.exports.padded_string = padded_string;
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