Function checkOffset

docs/app/js/sanddance-app.js:113591–113594

(offset, ext, length)

/*
 * Need to make sure that buffer isn't trying to write out of bounds.
 */ function checkOffset(offset, ext, length) {
    if (offset % 1 !== 0 || offset < 0) throw new RangeError("offset is not uint");
    if (offset + ext > length) throw new RangeError("Trying to access beyond buffer length");
}
Buffer.prototype.readUintLE = Buffer.prototype.readUIntLE = function readUIntLE(offset, byteLength1, noAssert) {
    offset = offset >>> 0;
    byteLength1 = byteLength1 >>> 0;