diff --git a/package.json b/package.json
index 6a60266..5f0f807 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,8 @@
   "main": "src/index.js",
   "license": "MIT",
   "scripts": {
-    "dev": "nodemon --ignore ./dist/ --watch ./src -e ts --exec 'tsc && node ./dist/index.js'",
+    "dev:tsc": "tsc --watch",
+    "dev:nodemon": "nodemon --watch ./dist ./dist/index.js",
     "start": "tsc && node ./dist/index.js"
   },
   "devDependencies": {
@@ -12,5 +13,8 @@
     "@types/node": "^16.7.13",
     "nodemon": "^2.0.12",
     "typescript": "^4.4.2"
+  },
+  "dependencies": {
+    "table-layout": "^3.0.0"
   }
 }
diff --git a/src/communicator.ts b/src/communicator.ts
index a568232..c729987 100644
--- a/src/communicator.ts
+++ b/src/communicator.ts
@@ -3,13 +3,29 @@ import { FLAP, SNAC, TLV, TLVType } from './structures';
 import { logDataStream } from './util';
 import { FLAGS_EMPTY } from './consts';
 
-import AuthorizationRegistrationService from "./services/authorization-registration";
+import GenericServiceControls from "./services/0x01-GenericServiceControls";
+import LocationServices from "./services/0x02-LocationSerices";
+import BuddyListManagement from "./services/0x03-BuddyListManagement";
+import ICBM from "./services/0x04-ICBM";
+import Invitation from "./services/0x06-Invitation";
+import Administration from "./services/0x07-Administration";
+import Popups from "./services/0x08-Popups";
+import PrivacyManagement from "./services/0x09-PrivacyManagement";
+import UserLookup from "./services/0x0a-UserLookup";
+import UsageStats from "./services/0x0b-UsageStats";
+import ChatNavigation from "./services/0x0d-ChatNavigation";
+import Chat from "./services/0x0e-Chat";;
+import DirectorySearch from "./services/0x0f-DirectorySearch";
+import ServerStoredBuddyIcons from "./services/0x10-ServerStoredBuddyIcons";
+import SSI from "./services/0x13-SSI";
+import AuthorizationRegistrationService from "./services/0x17-AuthorizationRegistration";
+
 import BaseService from "./services/base";
 
 export default class Communicator {
 
   private _sequenceNumber = 0;
-  private services : {[key: number]: BaseService} = {};
+  public services : {[key: number]: BaseService} = {};
 
   constructor(public socket : net.Socket) {
     // Hold on to the socket
@@ -17,9 +33,9 @@ export default class Communicator {
 
     this.socket.on('data', (data : Buffer) => {
       console.log('DATA-----------------------');
+      console.log('RAW\n' + logDataStream(data));
       const flap = FLAP.fromBuffer(data);
       console.log('RECV', flap.toString());
-      console.log('RAW\n' + logDataStream(data));
       this.handleMessage(flap);
     });
 
@@ -29,7 +45,6 @@ export default class Communicator {
 
   start() {
     // Start negotiating a connection 
-    console.log(FLAP, typeof FLAP);
     const hello = new FLAP(0x01, 0, Buffer.from([0x00, 0x00, 0x00, 0x01]));
     this.send(hello);
   }
@@ -37,6 +52,21 @@ export default class Communicator {
   registerServices() {
     const services = [
       new AuthorizationRegistrationService(this),
+      new GenericServiceControls(this),
+      new LocationServices(this),
+      new BuddyListManagement(this),
+      new ICBM(this),
+      new Invitation(this),
+      new Administration(this),
+      new Popups(this),
+      new PrivacyManagement(this),
+      new UserLookup(this),
+      new UsageStats(this),
+      new ChatNavigation(this),
+      new Chat(this),
+      new DirectorySearch(this),
+      new ServerStoredBuddyIcons(this),
+      new SSI(this),
     ];
 
     this.services = {};
@@ -86,9 +116,7 @@ export default class Communicator {
             servicesOffered.push(Buffer.from([0x00, service.family]));
           });
           const resp = new FLAP(2, this._getNewSequenceNumber(),
-            new SNAC(0x01, 0x03, FLAGS_EMPTY, 0, [
-              Buffer.concat(servicesOffered),
-            ]));
+            new SNAC(0x01, 0x03, FLAGS_EMPTY, 0, Buffer.concat(servicesOffered)));
           this.send(resp);
           return;
         }
@@ -107,6 +135,7 @@ export default class Communicator {
         }
 
         familyService.handleMessage(message);
+        return;
       default:
         console.warn('No handlers for channel', message.channel);
         return;
diff --git a/src/services/0x01-GenericServiceControls.ts b/src/services/0x01-GenericServiceControls.ts
new file mode 100644
index 0000000..2ffdfde
--- /dev/null
+++ b/src/services/0x01-GenericServiceControls.ts
@@ -0,0 +1,40 @@
+import BaseService from './base';
+import Communicator from '../communicator';
+import { FLAP, Rate, RateClass, RatedServiceGroup, RateGroupPair, SNAC } from '../structures';
+import { FLAGS_EMPTY } from '../consts';
+
+export default class GenericServiceControls extends BaseService {
+  constructor(communicator : Communicator) {
+    super({family: 0x01, version: 0x03}, communicator)
+  }
+
+  override handleMessage(message : FLAP) {
+    if (!(message.payload instanceof SNAC)) {
+      throw new Error('Require SNAC');
+    }
+
+    if (message.payload.service === 0x06) { // Client ask server for rate limits info
+      const resp = new FLAP(0x02, this._getNewSequenceNumber(),
+        SNAC.forRateClass(0x01, 0x07, FLAGS_EMPTY, 0, [
+          new Rate(
+            new RateClass(1, 80, 2500, 2000, 1500, 800, 3400 /*fake*/, 6000, 0, 0),
+            new RatedServiceGroup(1, [new RateGroupPair(0x00, 0x00)])
+          )
+        ]))
+      this.send(resp);
+      return;
+    }
+    
+
+    if (message.payload.service === 0x17) {
+      const serviceVersions : Buffer[] = [];
+      Object.values(this.communicator.services).forEach((service) => {
+        serviceVersions.push(Buffer.from([0x00, service.family, 0x00, service.version]));
+      });
+      const resp = new FLAP(0x02, this._getNewSequenceNumber(),
+        new SNAC(0x01, 0x18, FLAGS_EMPTY, 0, Buffer.concat(serviceVersions)));
+      this.send(resp);
+      return;
+    }
+  }
+}
diff --git a/src/services/0x02-LocationSerices.ts b/src/services/0x02-LocationSerices.ts
new file mode 100644
index 0000000..823cf34
--- /dev/null
+++ b/src/services/0x02-LocationSerices.ts
@@ -0,0 +1,8 @@
+import BaseService from './base';
+import Communicator from '../communicator';
+
+export default class LocationServices extends BaseService {
+  constructor(communicator : Communicator) {
+    super({family: 0x02, version: 0x01}, communicator)
+  }
+}
diff --git a/src/services/0x03-BuddyListManagement.ts b/src/services/0x03-BuddyListManagement.ts
new file mode 100644
index 0000000..8611f86
--- /dev/null
+++ b/src/services/0x03-BuddyListManagement.ts
@@ -0,0 +1,8 @@
+import BaseService from './base';
+import Communicator from '../communicator';
+
+export default class BuddyListManagement extends BaseService {
+  constructor(communicator : Communicator) {
+    super({family: 0x03, version: 0x01}, communicator)
+  }
+}
diff --git a/src/services/0x04-ICBM.ts b/src/services/0x04-ICBM.ts
new file mode 100644
index 0000000..6e6ce2d
--- /dev/null
+++ b/src/services/0x04-ICBM.ts
@@ -0,0 +1,8 @@
+import BaseService from './base';
+import Communicator from '../communicator';
+
+export default class ICBM extends BaseService {
+  constructor(communicator : Communicator) {
+    super({family: 0x04, version: 0x01}, communicator)
+  }
+}
diff --git a/src/services/0x06-Invitation.ts b/src/services/0x06-Invitation.ts
new file mode 100644
index 0000000..2781758
--- /dev/null
+++ b/src/services/0x06-Invitation.ts
@@ -0,0 +1,8 @@
+import BaseService from './base';
+import Communicator from '../communicator';
+
+export default class Invitation extends BaseService {
+  constructor(communicator : Communicator) {
+    super({family: 0x06, version: 0x01}, communicator)
+  }
+}
diff --git a/src/services/0x07-Administration.ts b/src/services/0x07-Administration.ts
new file mode 100644
index 0000000..c3f8f41
--- /dev/null
+++ b/src/services/0x07-Administration.ts
@@ -0,0 +1,8 @@
+import BaseService from './base';
+import Communicator from '../communicator';
+
+export default class Administration extends BaseService {
+  constructor(communicator : Communicator) {
+    super({family: 0x07, version: 0x01}, communicator)
+  }
+}
diff --git a/src/services/0x08-Popups.ts b/src/services/0x08-Popups.ts
new file mode 100644
index 0000000..6f1e4d3
--- /dev/null
+++ b/src/services/0x08-Popups.ts
@@ -0,0 +1,8 @@
+import BaseService from './base';
+import Communicator from '../communicator';
+
+export default class Popups extends BaseService {
+  constructor(communicator : Communicator) {
+    super({family: 0x08, version: 0x01}, communicator)
+  }
+}
diff --git a/src/services/0x09-PrivacyManagement.ts b/src/services/0x09-PrivacyManagement.ts
new file mode 100644
index 0000000..d0329e6
--- /dev/null
+++ b/src/services/0x09-PrivacyManagement.ts
@@ -0,0 +1,8 @@
+import BaseService from './base';
+import Communicator from '../communicator';
+
+export default class PrivacyManagement extends BaseService {
+  constructor(communicator : Communicator) {
+    super({family: 0x09, version: 0x01}, communicator)
+  }
+}
diff --git a/src/services/0x0a-UserLookup.ts b/src/services/0x0a-UserLookup.ts
new file mode 100644
index 0000000..b1d7d66
--- /dev/null
+++ b/src/services/0x0a-UserLookup.ts
@@ -0,0 +1,8 @@
+import BaseService from './base';
+import Communicator from '../communicator';
+
+export default class UserLookup extends BaseService {
+  constructor(communicator : Communicator) {
+    super({family: 0x0a, version: 0x01}, communicator)
+  }
+}
diff --git a/src/services/0x0b-UsageStats.ts b/src/services/0x0b-UsageStats.ts
new file mode 100644
index 0000000..29d5b07
--- /dev/null
+++ b/src/services/0x0b-UsageStats.ts
@@ -0,0 +1,8 @@
+import BaseService from './base';
+import Communicator from '../communicator';
+
+export default class UsageStats extends BaseService {
+  constructor(communicator : Communicator) {
+    super({family: 0x0b, version: 0x01}, communicator)
+  }
+}
diff --git a/src/services/0x0d-ChatNavigation.ts b/src/services/0x0d-ChatNavigation.ts
new file mode 100644
index 0000000..b805c0f
--- /dev/null
+++ b/src/services/0x0d-ChatNavigation.ts
@@ -0,0 +1,8 @@
+import BaseService from './base';
+import Communicator from '../communicator';
+
+export default class ChatNavigation extends BaseService {
+  constructor(communicator : Communicator) {
+    super({family: 0x0d, version: 0x02}, communicator)
+  }
+}
diff --git a/src/services/0x0e-Chat.ts b/src/services/0x0e-Chat.ts
new file mode 100644
index 0000000..23e7740
--- /dev/null
+++ b/src/services/0x0e-Chat.ts
@@ -0,0 +1,8 @@
+import BaseService from './base';
+import Communicator from '../communicator';
+
+export default class Chat extends BaseService {
+  constructor(communicator : Communicator) {
+    super({family: 0x0e, version: 0x01}, communicator)
+  }
+}
diff --git a/src/services/0x0f-DirectorySearch.ts b/src/services/0x0f-DirectorySearch.ts
new file mode 100644
index 0000000..6f49a89
--- /dev/null
+++ b/src/services/0x0f-DirectorySearch.ts
@@ -0,0 +1,8 @@
+import BaseService from './base';
+import Communicator from '../communicator';
+
+export default class DirectorySearch extends BaseService {
+  constructor(communicator : Communicator) {
+    super({family: 0x0f, version: 0x01}, communicator)
+  }
+}
diff --git a/src/services/0x10-ServerStoredBuddyIcons.ts b/src/services/0x10-ServerStoredBuddyIcons.ts
new file mode 100644
index 0000000..b61eb19
--- /dev/null
+++ b/src/services/0x10-ServerStoredBuddyIcons.ts
@@ -0,0 +1,8 @@
+import BaseService from './base';
+import Communicator from '../communicator';
+
+export default class ServerStoredBuddyIcons extends BaseService {
+  constructor(communicator : Communicator) {
+    super({family: 0x10, version: 0x01}, communicator)
+  }
+}
diff --git a/src/services/0x13-SSI.ts b/src/services/0x13-SSI.ts
new file mode 100644
index 0000000..c388542
--- /dev/null
+++ b/src/services/0x13-SSI.ts
@@ -0,0 +1,9 @@
+import BaseService from './base';
+import Communicator from '../communicator';
+
+// SSI is Server Stored Information
+export default class SSI extends BaseService {
+  constructor(communicator : Communicator) {
+    super({family: 0x10, version: 0x01}, communicator)
+  }
+}
diff --git a/src/services/authorization-registration.ts b/src/services/0x17-AuthorizationRegistration.ts
similarity index 79%
rename from src/services/authorization-registration.ts
rename to src/services/0x17-AuthorizationRegistration.ts
index 99e7acf..8dedb05 100644
--- a/src/services/authorization-registration.ts
+++ b/src/services/0x17-AuthorizationRegistration.ts
@@ -25,14 +25,14 @@ export default class AuthorizationRegistrationService extends BaseService {
 
     switch (message.payload.service) {
       case 0x02: // Client login request (md5 login sequence)
-        const tlvs = message.payload.tlvs;
-        const clientNameTLV = tlvs.find((tlv) => tlv instanceof TLV && tlv.type === TLVType.ClientName);
+        const payload = message.payload.payload;
+        const clientNameTLV = payload.find((tlv) => tlv instanceof TLV && tlv.type === TLVType.ClientName);
         if (!clientNameTLV || !(clientNameTLV instanceof TLV)) {
           return;
         }
         console.log("Attempting connection from", clientNameTLV.payload.toString('ascii'));
 
-        const userTLV = tlvs.find((tlv) => tlv instanceof TLV && tlv.type === TLVType.User);
+        const userTLV = payload.find((tlv) => tlv instanceof TLV && tlv.type === TLVType.User);
         if (!userTLV  || !(userTLV instanceof TLV)) {
           return;
         }
@@ -50,7 +50,7 @@ export default class AuthorizationRegistrationService extends BaseService {
           return;
         }
 
-        const passwordHashTLV = tlvs.find((tlv) => tlv instanceof TLV && tlv.type === TLVType.PasswordHash);
+        const passwordHashTLV = payload.find((tlv) => tlv instanceof TLV && tlv.type === TLVType.PasswordHash);
         if (!passwordHashTLV || !(passwordHashTLV instanceof TLV)) {
           return;
         }
@@ -76,18 +76,18 @@ export default class AuthorizationRegistrationService extends BaseService {
         new SNAC(0x17, 0x03, FLAGS_EMPTY, 0, [
           TLV.forUsername(username), // username
           TLV.forBOSAddress('10.0.1.29:5190'), // BOS address
-          TLV.forCookie('im a cookie uwu') // Authorization cookie
+          TLV.forCookie(JSON.stringify({cookie: 'uwu', user: 'toof'})) // Authorization cookie
         ]));
 
         this.send(authResp);
         return;
       case 0x06: // Request md5 authkey
-        const payload = Buffer.alloc(2, 0xFF, 'hex');
-        payload.writeUInt16BE(this.cipher.length);
+        const MD5AuthKeyHeader = Buffer.alloc(2, 0xFF, 'hex');
+        MD5AuthKeyHeader.writeUInt16BE(this.cipher.length);
         const md5ReqResp = new FLAP(2, this._getNewSequenceNumber(),
-          new SNAC(0x17, 0x07, FLAGS_EMPTY, 0, [
-            Buffer.concat([payload, Buffer.from(this.cipher, 'binary')]),
-          ]));
+          new SNAC(0x17, 0x07, FLAGS_EMPTY, 0,
+            Buffer.concat([MD5AuthKeyHeader, Buffer.from(this.cipher, 'binary')]),
+          ));
         this.send(md5ReqResp);
         break;
     }
diff --git a/src/services/base.ts b/src/services/base.ts
index 51c4505..f08643d 100644
--- a/src/services/base.ts
+++ b/src/services/base.ts
@@ -25,6 +25,7 @@ export default class BaseService {
   }
 
   handleMessage(message : FLAP) : void {
-    return;
+    throw new Error(''+
+      `Unhandled message for family ${this.family.toString(16)} supporting version ${this.version.toString(16)}`);
   }
 }
diff --git a/src/structures/SNAC.ts b/src/structures/SNAC.ts
index 4224b13..518a9f8 100644
--- a/src/structures/SNAC.ts
+++ b/src/structures/SNAC.ts
@@ -1,41 +1,120 @@
 import assert from "assert";
 import { TLV } from "./TLV";
 
+export class RateClass {
+  constructor(
+    public ID: number,
+    public WindowSize: number,
+    public ClearLevel: number,
+    public AlertLevel: number,
+    public LimitLevel: number,
+    public DisconnectLevel: number,
+    public CurrentLevel: number,
+    public MaxLevel: number,
+    public LastTime: number,
+    public CurrentStat: number,
+  ){}
+
+  toBuffer() : Buffer {
+    const buf = Buffer.alloc(35, 0x00);
+    buf.writeUInt16BE(this.ID, 0);
+    buf.writeUInt32BE(this.WindowSize, 2);
+    buf.writeUInt32BE(this.ClearLevel, 6);
+    buf.writeUInt32BE(this.AlertLevel, 10);
+    buf.writeUInt32BE(this.LimitLevel, 14);
+    buf.writeUInt32BE(this.DisconnectLevel,18);
+    buf.writeUInt32BE(this.CurrentLevel, 22);
+    buf.writeUInt32BE(this.MaxLevel, 26);
+    buf.writeUInt32BE(this.LastTime, 30);
+    buf.writeUInt8(this.CurrentStat, 34);
+    return buf;
+  }
+}
+
+export class RateGroupPair {
+  constructor(public family : number, public service : number) {}
+  toBuffer() : Buffer {
+    const buf = Buffer.alloc(4, 0x00);
+    buf.writeInt16BE(this.family, 0);
+    buf.writeInt16BE(this.service, 2);
+    return buf;
+  }
+}
+
+export class RatedServiceGroup {
+  constructor(public rateGroupID : number, public pairs : RateGroupPair[]){}
+
+  toBuffer() : Buffer {
+    const ratedServiceGroupHeader = Buffer.alloc(4, 0x00);
+    ratedServiceGroupHeader.writeInt16BE(this.rateGroupID);
+    ratedServiceGroupHeader.writeInt16BE(this.pairs.length, 2);
+    const pairs = this.pairs.map((pair) => pair.toBuffer());
+    return Buffer.concat([ratedServiceGroupHeader, ...pairs]);
+  }
+}
+
+export class Rate {
+  constructor(public rateClass : RateClass, public ratedServiceGroup : RatedServiceGroup) {}
+  toBuffer() : Buffer {
+    return Buffer.concat([this.rateClass.toBuffer(), this.ratedServiceGroup.toBuffer()]);
+  }
+}
+
 export class SNAC {
+  constructor(public family : number, public service : number, public flags : Buffer, public requestID : number , public payload : (TLV[] | Buffer) = Buffer.alloc(0)) {
+    this.family = family;
+    this.service = service;
+    this.flags = flags;
+    this.requestID = requestID;
+    this.payload = payload;
+  }
+
   static fromBuffer(buf : Buffer, payloadLength = 0) {
     assert(buf.length >= 10, 'Expected 10 bytes for SNAC header');
     const family = buf.slice(0,2).readInt16BE(0);
     const service = buf.slice(2,4).readInt16BE(0);
     const flags = buf.slice(4, 6);
     const requestID = buf.slice(6, 10).readInt32BE(0);
-    const tlvs : TLV[] = []; // SNACs can have multiple TLVs
+    let payload : Buffer | TLV[]; // SNACs can have multiple payload
 
-    let tlvsIdx = 10;
-    let cb = 0, cbLimit = 20; //circuit breaker
-    while (tlvsIdx < payloadLength && cb < cbLimit) {
-      const tlv = TLV.fromBuffer(buf.slice(tlvsIdx));
-      tlvs.push(tlv);
-      tlvsIdx += tlv.length + 4; // 4 bytes for TLV type + tlvs length
-      cb++;
+    // Some SNACs don't have TLV payloads
+    if (family === 0x01 && service === 0x17 ||
+        family === 0x01 && service === 0x07 ||
+        family === 0x01 && service === 0x08 ||
+        family === 0x01 && service === 0x0e) {
+      payload = buf.slice(10, 10 + payloadLength);
+    } else {
+      payload = [];
+      // Try to parse TLVs
+      let payloadIdx = 10;
+      let cb = 0, cbLimit = 20; //circuit breaker
+      while (payloadIdx < payloadLength && cb < cbLimit) {
+        const tlv = TLV.fromBuffer(buf.slice(payloadIdx));
+        payload.push(tlv);
+        payloadIdx += tlv.length + 4; // 4 bytes for TLV type + payload length
+        cb++;
+      }
+      if (cb === cbLimit) {
+        console.error('Application error, cb limit reached');
+        process.exit(1);
+      }
     }
-    if (cb === cbLimit) {
-      console.error('Application error, cb limit reached');
-      process.exit(1);
-    }
-    
-    return new SNAC(family, service, flags, requestID, tlvs);
+
+    return new SNAC(family, service, flags, requestID, payload);
   }
 
-  constructor(public family : number, public service : number, public flags : Buffer, public requestID : number , public tlvs : Array<TLV | Buffer> = []) {
-    this.family = family;
-    this.service = service;
-    this.flags = flags;
-    this.requestID = requestID;
-    this.tlvs = tlvs;
+  static forRateClass(family : number, service : number, flags : Buffer, requestID : number, rates : Rate[]) : SNAC {
+    const payloadHeader = Buffer.alloc(2, 0x00);
+    payloadHeader.writeUInt16BE(rates.length);
+
+    const payloadBody = rates.map((rateClass) => rateClass.toBuffer());
+    const payload = Buffer.concat([payloadHeader, ...payloadBody]);
+
+    return new SNAC(family, service, flags, requestID, payload);
   }
 
   toString() {
-    return `SNAC(${this.family.toString(16)},${this.service.toString(16)}) #${this.requestID}\n  ${this.tlvs}`;
+    return `SNAC(${this.family.toString(16)},${this.service.toString(16)}) #${this.requestID}\n  ${this.payload}`;
   }
 
   toBuffer() {
@@ -45,12 +124,12 @@ export class SNAC {
     SNACHeader.set(this.flags, 4);
     SNACHeader.writeUInt32BE(this.requestID, 6);
 
-    const payload = this.tlvs.map((thing) => {
-      if (thing instanceof TLV) {
-        return thing.toBuffer();
-      }
-      return thing;
-    });
+    let payload : Buffer[] = [];
+    if (this.payload instanceof Buffer) {
+      payload = [this.payload];
+    } else if (this.payload.length && this.payload[0] instanceof TLV) {
+      payload = (this.payload as TLV[]).map((thing : TLV) => thing.toBuffer());
+    }
 
     return Buffer.concat([SNACHeader, ...payload]);
   }
diff --git a/src/util.ts b/src/util.ts
index b9396ad..916f15e 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -1,4 +1,5 @@
-function chunkString(str : string, len : number) {
+import { FLAP } from './structures'
+export function chunkString(str : string, len : number) {
   const size = Math.ceil(str.length/len)
   const r = Array(size)
   let offset = 0
@@ -15,3 +16,126 @@ export function logDataStream(data : Buffer){
   const strs = chunkString(data.toString('hex'), 16);
   return strs.map((str) => chunkString(str, 2).join(' ')).join('\n');
 }
+
+// Experiment to provide descriptive print-outs of the data structures
+// @ts-ignore
+import Table from 'table-layout';
+
+type DataSize = -1 | 8 | 16 | 32;
+interface Spec {
+  description: string,
+  size : DataSize,
+  isRepeat? : boolean,
+  repeatSpecs?: Spec[],
+}
+
+function byte(description : string) : Spec {
+  return {size: 8, description}
+}
+
+function word(description : string) : Spec {
+  return {size: 16, description};
+}
+
+function dword(description : string) : Spec {
+  return {size: 32, description};
+}
+
+function repeat(size: DataSize, description : string, specs : Spec[]) : Spec {
+  return {size, description, isRepeat: true, repeatSpecs: specs};
+}
+
+const FLAPSpec = [
+  byte("FLAP Header"),
+  byte("Channel"),
+  word("Sequence ID"),
+  word("Payload Length"),
+  word("SNAC Family"),
+  word("SNAC Subtype"),
+  word("SNAC Flags"),
+  dword("SNAC Request-ID"),
+  repeat(16, "Number of rate classes", [
+    word("Rate Class ID"),
+    dword("Window Size"),
+    dword("Clear Level"),
+    dword("Alert Level"),
+    dword("Limit Level"),
+    dword("Disconnect Level"),
+    dword("Current Level"),
+    dword("Max Level"),
+    dword("Last Time"),
+    byte("Current State")
+  ]),
+  repeat(-1, "", [
+    word("Rate Group ID"),
+    repeat(16, "Number of pairs in group", [
+      dword("Family/Subtype pair"),
+    ]),
+  ]),
+];
+
+function parseBuffer(buf : Buffer, spec : Spec[], repeatTimes = 0) {
+  let offset = 0;
+  let rows = [];
+  let repeat = repeatTimes;
+
+  for (let section of spec) {
+    let value : number = 0;
+    if (section.size === 8) {
+      const bufStr = buf.slice(offset, offset + 1).toString('hex');
+      value = buf.readInt8(offset);
+      rows.push([chunkString(bufStr, 2).join(' '), value, section.description]);
+      offset += 1;
+    } else if (section.size === 16) {
+      const bufStr = buf.slice(offset, offset + 2).toString('hex');
+      value = buf.readUInt16BE(offset);
+      rows.push([chunkString(bufStr, 2).join(' '), value, section.description]);
+      offset += 2;
+    } else if (section.size === 32) {
+      const bufStr = buf.slice(offset, offset + 4).toString('hex');
+      value = buf.readUInt32BE(offset);
+      rows.push([chunkString(bufStr, 2).join(' '), value, section.description]);
+      offset += 4;
+    }
+
+    if (section.isRepeat && section.repeatSpecs) {
+      if (section.size !== -1) {
+        repeat = value;
+      }
+
+      let specs : Spec[] = [];
+      for (let i = 0; i < repeat; i++) {
+        specs.push(...section.repeatSpecs);
+      }
+
+      const subrows : any[] = parseBuffer(buf.slice(offset), specs, repeat);
+      rows.push(...subrows);
+    }
+  }
+
+  return rows;
+}
+
+function printBuffer(buf : Buffer, spec : Spec[]) {
+  const rows = parseBuffer(buf, spec);
+  console.log((new Table(rows)).toString());
+}
+
+function bufferFromWebText(webtext : string) : Buffer {
+  return Buffer.from(webtext.replace(/\s/g, ''), 'hex');
+}
+
+const exampleWebText = ''+
+`
+2a 02 00 03 00 37 00 01
+00 07 00 00 00 00 00 00
+00 01 00 01 00 00 00 50
+00 00 09 c4 00 00 07 d0
+00 00 05 dc 00 00 03 20
+00 00 0d 48 00 00 17 70
+00 00 00 00 00 00 01 00
+01 00 00 00 00                           `
+
+if (require.main === module) {
+  printBuffer(bufferFromWebText(exampleWebText), FLAPSpec);
+}
diff --git a/yarn.lock b/yarn.lock
index 1c3c4e7..3fe0547 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,6 +2,14 @@
 # yarn lockfile v1
 
 
+"@75lb/deep-merge@^1.1.0":
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/@75lb/deep-merge/-/deep-merge-1.1.1.tgz#3b06155b90d34f5f8cc2107d796f1853ba02fd6d"
+  integrity sha512-xvgv6pkMGBA6GwdyJbNAnDmfAIR/DfWhrj9jgWh3TY7gRm3KO46x/GPjRg6wJ0nOepwqrNxFfojebh0Df4h4Tw==
+  dependencies:
+    lodash.assignwith "^4.2.0"
+    typical "^7.1.1"
+
 "@sindresorhus/is@^0.14.0":
   version "0.14.0"
   resolved "https://registry.yarnpkg.com/@sindresorhus/is/-/is-0.14.0.tgz#9fb3a3cf3132328151f353de4632e01e52102bea"
@@ -46,6 +54,13 @@ ansi-regex@^5.0.0:
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-5.0.0.tgz#388539f55179bf39339c81af30a654d69f87cb75"
   integrity sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg==
 
+ansi-styles@^3.2.1:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
+  integrity sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==
+  dependencies:
+    color-convert "^1.9.0"
+
 ansi-styles@^4.1.0:
   version "4.3.0"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-4.3.0.tgz#edd803628ae71c04c85ae7a0906edad34b648937"
@@ -61,6 +76,21 @@ anymatch@~3.1.2:
     normalize-path "^3.0.0"
     picomatch "^2.0.4"
 
+array-back@^3.0.1, array-back@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/array-back/-/array-back-3.1.0.tgz#b8859d7a508871c9a7b2cf42f99428f65e96bfb0"
+  integrity sha512-TkuxA4UCOvxuDK6NZYXCalszEzj+TLszyASooky+i742l9TqsOdYCMJJupxRic61hwquNtppB3hgcuq9SVSH1Q==
+
+array-back@^4.0.1:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/array-back/-/array-back-4.0.2.tgz#8004e999a6274586beeb27342168652fdb89fa1e"
+  integrity sha512-NbdMezxqf94cnNfWLL7V/im0Ub+Anbb0IoZhvzie8+4HJ4nMQuzHuy49FkGYCJK2yAloZ3meiB6AVMClbrI1vg==
+
+array-back@^6.2.0:
+  version "6.2.0"
+  resolved "https://registry.yarnpkg.com/array-back/-/array-back-6.2.0.tgz#83cc80fbef5a46269b1f6ecc82011cfc19cf1c1e"
+  integrity sha512-mixVv03GOOn/ubHE4STQ+uevX42ETdk0JoMVEjNkSOCT7WgERh7C8/+NyhWYNpE3BN69pxFyJIBcF7CxWz/+4A==
+
 balanced-match@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.2.tgz#e83e3a7e3f300b34cb9d87f615fa0cbf357690ee"
@@ -118,6 +148,15 @@ camelcase@^5.3.1:
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-5.3.1.tgz#e3c9b31569e106811df242f715725a1f4c494320"
   integrity sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==
 
+chalk@^2.4.2:
+  version "2.4.2"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.2.tgz#cd42541677a54333cf541a49108c1432b44c9424"
+  integrity sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==
+  dependencies:
+    ansi-styles "^3.2.1"
+    escape-string-regexp "^1.0.5"
+    supports-color "^5.3.0"
+
 chalk@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-3.0.0.tgz#3f73c2bf526591f574cc492c51e2456349f844e4"
@@ -158,6 +197,13 @@ clone-response@^1.0.2:
   dependencies:
     mimic-response "^1.0.0"
 
+color-convert@^1.9.0:
+  version "1.9.3"
+  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.3.tgz#bb71850690e1f136567de629d2d5471deda4c1e8"
+  integrity sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==
+  dependencies:
+    color-name "1.1.3"
+
 color-convert@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-2.0.1.tgz#72d3a68d598c9bdb3af2ad1e84f21d896abd4de3"
@@ -165,11 +211,36 @@ color-convert@^2.0.1:
   dependencies:
     color-name "~1.1.4"
 
+color-name@1.1.3:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
+  integrity sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=
+
 color-name@~1.1.4:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.4.tgz#c2a09a87acbde69543de6f63fa3995c826c536a2"
   integrity sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==
 
+command-line-args@^5.2.0:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/command-line-args/-/command-line-args-5.2.0.tgz#087b02748272169741f1fd7c785b295df079b9be"
+  integrity sha512-4zqtU1hYsSJzcJBOcNZIbW5Fbk9BkjCp1pZVhQKoRaWL5J7N4XphDLwo8aWwdQpTugxwu+jf9u2ZhkXiqp5Z6A==
+  dependencies:
+    array-back "^3.1.0"
+    find-replace "^3.0.0"
+    lodash.camelcase "^4.3.0"
+    typical "^4.0.0"
+
+command-line-usage@^6.1.1:
+  version "6.1.1"
+  resolved "https://registry.yarnpkg.com/command-line-usage/-/command-line-usage-6.1.1.tgz#c908e28686108917758a49f45efb4f02f76bc03f"
+  integrity sha512-F59pEuAR9o1SF/bD0dQBDluhpT4jJQNWUHEuVBqpDmCUo6gPjCi+m9fCWnWZVR/oG6cMTUms4h+3NPl74wGXvA==
+  dependencies:
+    array-back "^4.0.1"
+    chalk "^2.4.2"
+    table-layout "^1.0.1"
+    typical "^5.2.0"
+
 concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
@@ -213,7 +284,7 @@ decompress-response@^3.3.0:
   dependencies:
     mimic-response "^1.0.0"
 
-deep-extend@^0.6.0:
+deep-extend@^0.6.0, deep-extend@~0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.6.0.tgz#c4fa7c95404a17a9c3e8ca7e1537312b736330ac"
   integrity sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==
@@ -257,6 +328,11 @@ escape-goat@^2.0.0:
   resolved "https://registry.yarnpkg.com/escape-goat/-/escape-goat-2.1.1.tgz#1b2dc77003676c457ec760b2dc68edb648188675"
   integrity sha512-8/uIhbG12Csjy2JEW7D9pHbreaVaS/OpN3ycnyvElTdwM5n6GY6W6e2IPemfvGZeUMqZ9A/3GqIZMgKnBhAw/Q==
 
+escape-string-regexp@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
+  integrity sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=
+
 fill-range@^7.0.1:
   version "7.0.1"
   resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-7.0.1.tgz#1919a6a7c75fe38b2c7c77e5198535da9acdda40"
@@ -264,6 +340,13 @@ fill-range@^7.0.1:
   dependencies:
     to-regex-range "^5.0.1"
 
+find-replace@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/find-replace/-/find-replace-3.0.0.tgz#3e7e23d3b05167a76f770c9fbd5258b0def68c38"
+  integrity sha512-6Tb2myMioCAgv5kfvP5/PkZZ/ntTpVK39fHY7WkWBgvbeE+VHd/tZuZ4mrC+bxh4cfOZeYKVPaJIZtZXV7GNCQ==
+  dependencies:
+    array-back "^3.0.1"
+
 fsevents@~2.3.2:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-2.3.2.tgz#8a526f78b8fdf4623b709e0b975c52c24c02fd1a"
@@ -457,6 +540,16 @@ latest-version@^5.0.0:
   dependencies:
     package-json "^6.3.0"
 
+lodash.assignwith@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/lodash.assignwith/-/lodash.assignwith-4.2.0.tgz#127a97f02adc41751a954d24b0de17e100e038eb"
+  integrity sha1-EnqX8CrcQXUalU0ksN4X4QDgOOs=
+
+lodash.camelcase@^4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/lodash.camelcase/-/lodash.camelcase-4.3.0.tgz#b28aa6288a2b9fc651035c7711f65ab6190331a6"
+  integrity sha1-soqmKIorn8ZRA1x3EfZathkDMaY=
+
 lowercase-keys@^1.0.0, lowercase-keys@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/lowercase-keys/-/lowercase-keys-1.0.1.tgz#6f9e30b47084d971a7c820ff15a6c5167b74c26f"
@@ -603,6 +696,11 @@ readdirp@~3.6.0:
   dependencies:
     picomatch "^2.2.1"
 
+reduce-flatten@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/reduce-flatten/-/reduce-flatten-2.0.0.tgz#734fd84e65f375d7ca4465c69798c25c9d10ae27"
+  integrity sha512-EJ4UNY/U1t2P/2k6oqotuX2Cc3T6nxJwsM0N0asT7dhrtH1ltUxDn4NalSYmPE2rCkVpcf/X6R0wDwcFpzhd4w==
+
 registry-auth-token@^4.0.0:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/registry-auth-token/-/registry-auth-token-4.2.1.tgz#6d7b4006441918972ccd5fedcd41dc322c79b250"
@@ -646,6 +744,11 @@ signal-exit@^3.0.2:
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.3.tgz#a1410c2edd8f077b08b4e253c8eacfcaf057461c"
   integrity sha512-VUJ49FC8U1OxwZLxIbTTrDvLnf/6TDgxZcK8wxR8zs13xpx7xbG60ndBlhNrFi2EMuFRoeDoJO7wthSLq42EjA==
 
+stream-read-all@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/stream-read-all/-/stream-read-all-3.0.1.tgz#60762ae45e61d93ba0978cda7f3913790052ad96"
+  integrity sha512-EWZT9XOceBPlVJRrYcykW8jyRSZYbkb/0ZK36uLEmoWVO5gxBOnntNTseNzfREsqxqdfEGQrD8SXQ3QWbBmq8A==
+
 string-width@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-3.1.0.tgz#22767be21b62af1081574306f69ac51b62203961"
@@ -683,7 +786,7 @@ strip-json-comments@~2.0.1:
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
   integrity sha1-PFMZQukIwml8DsNEhYwobHygpgo=
 
-supports-color@^5.5.0:
+supports-color@^5.3.0, supports-color@^5.5.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.5.0.tgz#e2e69a44ac8772f78a1ec0b35b689df6530efc8f"
   integrity sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==
@@ -697,6 +800,29 @@ supports-color@^7.1.0:
   dependencies:
     has-flag "^4.0.0"
 
+table-layout@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/table-layout/-/table-layout-1.0.2.tgz#c4038a1853b0136d63365a734b6931cf4fad4a04"
+  integrity sha512-qd/R7n5rQTRFi+Zf2sk5XVVd9UQl6ZkduPFC3S7WEGJAmetDTjY3qPN50eSKzwuzEyQKy5TN2TiZdkIjos2L6A==
+  dependencies:
+    array-back "^4.0.1"
+    deep-extend "~0.6.0"
+    typical "^5.2.0"
+    wordwrapjs "^4.0.0"
+
+table-layout@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/table-layout/-/table-layout-3.0.0.tgz#bd0f207ff73eb4dba79019e4f672e61874181b7f"
+  integrity sha512-chMCAvqzsw2k0WVZLQwyiNfHV3lwLdrmTKaofEt3PhedSVdEwOK8/nGetZFaQEg9HjPL9CrhkJWc4ZauFCihXw==
+  dependencies:
+    "@75lb/deep-merge" "^1.1.0"
+    array-back "^6.2.0"
+    command-line-args "^5.2.0"
+    command-line-usage "^6.1.1"
+    stream-read-all "^3.0.1"
+    typical "^7.1.1"
+    wordwrapjs "^5.1.0"
+
 term-size@^2.1.0:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/term-size/-/term-size-2.2.1.tgz#2a6a54840432c2fb6320fea0f415531e90189f54"
@@ -738,6 +864,21 @@ typescript@^4.4.2:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.4.2.tgz#6d618640d430e3569a1dfb44f7d7e600ced3ee86"
   integrity sha512-gzP+t5W4hdy4c+68bfcv0t400HVJMMd2+H9B7gae1nQlBzCqvrXX+6GL/b3GAgyTH966pzrZ70/fRjwAtZksSQ==
 
+typical@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/typical/-/typical-4.0.0.tgz#cbeaff3b9d7ae1e2bbfaf5a4e6f11eccfde94fc4"
+  integrity sha512-VAH4IvQ7BDFYglMd7BPRDfLgxZZX4O4TFcRDA6EN5X7erNJJq+McIEp8np9aVtxrCJ6qx4GTYVfOWNjcqwZgRw==
+
+typical@^5.2.0:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/typical/-/typical-5.2.0.tgz#4daaac4f2b5315460804f0acf6cb69c52bb93066"
+  integrity sha512-dvdQgNDNJo+8B2uBQoqdb11eUCE1JQXhvjC/CZtgvZseVd5TYMXnq0+vuUemXbd/Se29cTaUuPX3YIc2xgbvIg==
+
+typical@^7.1.1:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/typical/-/typical-7.1.1.tgz#ba177ab7ab103b78534463ffa4c0c9754523ac1f"
+  integrity sha512-T+tKVNs6Wu7IWiAce5BgMd7OZfNYUndHwc5MknN+UHOudi7sGZzuHdCadllRuqJ3fPtgFtIH9+lt9qRv6lmpfA==
+
 undefsafe@^2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/undefsafe/-/undefsafe-2.0.3.tgz#6b166e7094ad46313b2202da7ecc2cd7cc6e7aae"
@@ -785,6 +926,19 @@ widest-line@^3.1.0:
   dependencies:
     string-width "^4.0.0"
 
+wordwrapjs@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/wordwrapjs/-/wordwrapjs-4.0.1.tgz#d9790bccfb110a0fc7836b5ebce0937b37a8b98f"
+  integrity sha512-kKlNACbvHrkpIw6oPeYDSmdCTu2hdMHoyXLTcUKala++lx5Y+wjJ/e474Jqv5abnVmwxw08DiTuHmw69lJGksA==
+  dependencies:
+    reduce-flatten "^2.0.0"
+    typical "^5.2.0"
+
+wordwrapjs@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/wordwrapjs/-/wordwrapjs-5.1.0.tgz#4c4d20446dcc670b14fa115ef4f8fd9947af2b3a"
+  integrity sha512-JNjcULU2e4KJwUNv6CHgI46UvDGitb6dGryHajXTDiLgg1/RiGoPSDw4kZfYnwGtEXf2ZMeIewDQgFGzkCB2Sg==
+
 wrappy@1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"