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'use strict';
/**
* Check if a Buffer/Uint8Array is a ZIP file
*
* @param {Buffer} buf
* @api public
*/
module.exports = function (buf) {
if (!buf || buf.length < 4) {
return false;
}
return buf[0] === 80 && buf[1] === 75 && (buf[2] === 3 || buf[2] === 5 || buf[2] === 7) && (buf[3] === 4 || buf[3] === 6 || buf[3] === 8);
};