dns-packet-typescript/dist/rsoa.js

An abstract-encoding compliant module for encoding / decoding DNS packets

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.encodingLength = exports.decode = exports.encode = void 0;
var name = require("./name");
function encode(data, buf, offset) {
    if (offset === void 0) { offset = 0; }
    if (!buf)
        buf = Buffer.allocUnsafe(encodingLength(data));
    if (!offset)
        offset = 0;
    var oldOffset = offset;
    offset += 2;
    name.encode(data.mname, buf, offset);
    offset += name.encode.bytes;
    name.encode(data.rname, buf, offset);
    offset += name.encode.bytes;
    buf.writeUInt32BE(data.serial || 0, offset);
    offset += 4;
    buf.writeUInt32BE(data.refresh || 0, offset);
    offset += 4;
    buf.writeUInt32BE(data.retry || 0, offset);
    offset += 4;
    buf.writeUInt32BE(data.expire || 0, offset);
    offset += 4;
    buf.writeUInt32BE(data.minimum || 0, offset);
    offset += 4;
    buf.writeUInt16BE(offset - oldOffset - 2, oldOffset);
    encode.bytes = offset - oldOffset;
    return buf;
}
exports.encode = encode;
encode.bytes = 0;
function decode(buf, offset) {
    if (offset === void 0) { offset = 0; }
    if (!offset)
        offset = 0;
    var oldOffset = offset;
    var data = {};
    offset += 2;
    data.mname = name.decode(buf, offset);
    offset += name.decode.bytes;
    data.rname = name.decode(buf, offset);
    offset += name.decode.bytes;
    data.serial = buf.readUInt32BE(offset);
    offset += 4;
    data.refresh = buf.readUInt32BE(offset);
    offset += 4;
    data.retry = buf.readUInt32BE(offset);
    offset += 4;
    data.expire = buf.readUInt32BE(offset);
    offset += 4;
    data.minimum = buf.readUInt32BE(offset);
    offset += 4;
    decode.bytes = offset - oldOffset;
    return data;
}
exports.decode = decode;
decode.bytes = 0;
function encodingLength(data) {
    return 22 + name.encodingLength(data.mname) + name.encodingLength(data.rname);
}
exports.encodingLength = encodingLength;
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