Add TCP support to DNS server and client

README.md

@@ -37,16 +37,15 @@ $adapter = new Native('0.0.0.0', 5300);
 $zone = new Zone(
     name: 'example.test',
     records: [
-        new Record(name: 'example.test', type: Record::TYPE_A, rdata: '127.0.0.1', ttl: 60),
+        new Record(name: 'example.test', type: Record::TYPE_A, rdata: '192.0.2.1', ttl: 60),
         new Record(name: 'www.example.test', type: Record::TYPE_CNAME, rdata: 'example.test', ttl: 60),
-        new Record(name: 'example.test', type: Record::TYPE_TXT, rdata: '"demo record"', ttl: 60),
-    ],
-    soa: new Record(
-        name: 'example.test',
-        type: Record::TYPE_SOA,
-        rdata: 'ns1.example.test hostmaster.example.test 1 7200 1800 1209600 3600',
-        ttl: 60
-    ),
+        new Record(
+            name: 'example.test',
+            type: Record::TYPE_SOA,
+            rdata: 'ns1.example.test hostmaster.example.test 1 7200 1800 1209600 3600',
+            ttl: 60
+        ),
+    ]
 );
 
 $server = new Server($adapter, new Memory($zone));
@@ -55,7 +54,7 @@ $server->setDebug(true);
 $server->start();
 ```
 
-The server listens on UDP port `5300` and answers queries for `example.test` from the in-memory zone. Implement the [`Utopia\DNS\Resolver`](src/DNS/Resolver.php) interface to serve records from databases, APIs, or other stores.
+The server listens on both UDP and TCP port `5300` (RFC 5966) and answers queries for `example.test` from the in-memory zone. Implement the [`Utopia\DNS\Resolver`](src/DNS/Resolver.php) interface to serve records from databases, APIs, or other stores.
 
 ## Resolvers
 - `Memory`: authoritative resolver backed by a `Zone` object

composer.json

@@ -8,7 +8,7 @@
     "scripts": {
         "format": "./vendor/bin/pint --config pint.json",
         "format:check": "./vendor/bin/pint --test --config pint.json",
-        "analyze": "./vendor/bin/phpstan analyse --level 8 -c phpstan.neon src tests",
+        "analyze": "./vendor/bin/phpstan analyse --level max -c phpstan.neon src tests",
         "test": "./vendor/bin/phpunit --configuration phpunit.xml"
     },
     "authors": [

docker-compose.yml

@@ -15,5 +15,6 @@ services:
       - dns
     ports:
       - '5300:5300/udp'
+      - '5300:5300/tcp'
 networks:
   dns:

src/DNS/Adapter.php

@@ -15,8 +15,8 @@ abstract public function onWorkerStart(callable $callback): void;
     /**
      * Packet handler
      *
-     * @param callable(string $buffer, string $ip, int $port): string $callback
-     * @phpstan-param callable(string $buffer, string $ip, int $port):string $callback
+     * @param callable(string $buffer, string $ip, int $port, ?int $maxResponseSize): string $callback
+     * @phpstan-param callable(string $buffer, string $ip, int $port, ?int $maxResponseSize):string $callback
      */
     abstract public function onPacket(callable $callback): void;