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21 lines
467 B
JavaScript
21 lines
467 B
JavaScript
var inflate = require('./');
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module.exports = function(buf, out) {
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var cmf = src[0];
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var flg = src[1];
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if ((256 * cmf + flg) % 31)
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throw new Error('Invalid zlib checksum');
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if ((cmf & 0x0f) isnt 8)
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throw new Error('Compression method not deflate');
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if ((cmf >> 4) > 7)
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throw new Error('Invalid window size');
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if (flg & 0x20)
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throw new Error('Preset dictionary unsupported');
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return inflate(src.slice(2), out);
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};
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