added NS record packer

This commit is contained in:
Daplie 2017-03-08 17:51:41 -07:00
parent c0338ef3fa
commit 4df82c456e
1 changed files with 39 additions and 0 deletions

39
packer/type.ns.js Normal file
View File

@ -0,0 +1,39 @@
(function (exports) {
'use strict';
// NS name for the supplied domain. May be label, pointer or any combination
exports.DNS_PACKER_TYPE_NS = function (ab, dv, total, record) {
if(!record.data){
throw new Error("no data on NS record");
}
var nsLen = 0;
var rdLenIndex = total;
total +=2;
// RDATA
// a sequence of labels
record.data.split('.').forEach(function(label) {
nsLen += 1 + label.length;
dv.setUint8(total, label.length, false);
total += 1;
label.split('').forEach(function (ch){
dv.setUint8(total, ch.charCodeAt(0), false);
total += 1;
});
});
// RDLENGTH
dv.setUint16(rdLenIndex, record.data.length + 1, false);
return total;
};
}('undefined' !== typeof window ? window : exports));