multicast-dns - npm Package Compare versions

Comparing version 5.0.0 to 5.0.1

package.json

 {
   "name": "multicast-dns",
-  "version": "5.0.0",
+  "version": "5.0.1",
   "description": "Low level multicast-dns implementation in pure javascript",
@@ -14,4 +14,4 @@ "main": "index.js",
   "devDependencies": {
-    "standard": "^3.3.2",
-    "tape": "^3.0.3"
+    "standard": "^5.4.1",
+    "tape": "^4.4.0"
   },
@@ -18,0 +18,0 @@ "repository": {

packets.js

 var types = require('./types')
 
 var name = {}
+var FLUSH_MASK = 1 << 15
 
@@ -86,3 +87,3 @@ name.decode = function (buf, offset) {
     arcount: buf.readUInt16BE(offset + 10)
-   }
+  }
 }
@@ -330,2 +331,5 @@
 
+  a.flush = !!(a.class & FLUSH_MASK)
+  if (a.flush) a.class &= ~FLUSH_MASK
+
   var enc = renc(a.type)
@@ -346,3 +350,7 @@ a.data = enc.decode(buf, offset + 8)
   buf.writeUInt16BE(types.toType(a.type), offset)
-  buf.writeUInt16BE(a.class === undefined ? 1 : a.class, offset + 2)
+
+  var klass = a.class === undefined ? 1 : a.class
+  if (a.flush) klass |= FLUSH_MASK // the 1st bit of the class is the flush bit
+  buf.writeUInt16BE(klass, offset + 2)
+
   buf.writeUInt32BE(a.ttl || 0, offset + 4)
@@ -349,0 +357,0 @@

README.md

@@ -59,4 +59,5 @@ # multicast-dns
        type: 'A',
-       class: 32769,
+       class: 1,
        ttl: 120,
+       flush: true,
        data: '192.168.1.5' } ],
@@ -67,9 +68,11 @@ authorities: [],
        type: 'A',
-       class: 32769,
+       class: 1,
        ttl: 120,
+       flush: true,
        data: '192.168.1.5' },
      { name: 'brunhilde.local',
        type: 'AAAA',
-       class: 32769,
+       class: 1,
        ttl: 120,
+       flush: true,
        data: 'fe80::5ef9:38ff:fe8c:ceaa' } ] }
@@ -76,0 +79,0 @@ ```

test.js

@@ -60,3 +60,3 @@ var mdns = require('./')
     t.same(packet.answers.length, 1, 'one answer')
-    t.same(packet.answers[0], {type: 'A', name: 'hello-world', ttl: 120, data: '127.0.0.1', class: 1})
+    t.same(packet.answers[0], {type: 'A', name: 'hello-world', ttl: 120, data: '127.0.0.1', class: 1, flush: false})
     dns.destroy(function () {
@@ -80,4 +80,4 @@ t.end()
     t.same(packet.answers.length, 2, 'one answers')
-    t.same(packet.answers[0], {type: 'A', name: 'hello-world', ttl: 120, data: '127.0.0.1', class: 1})
-    t.same(packet.answers[1], {type: 'A', name: 'hej.verden', ttl: 120, data: '127.0.0.2', class: 1})
+    t.same(packet.answers[0], {type: 'A', name: 'hello-world', ttl: 120, data: '127.0.0.1', class: 1, flush: false})
+    t.same(packet.answers[1], {type: 'A', name: 'hej.verden', ttl: 120, data: '127.0.0.2', class: 1, flush: false})
     dns.destroy(function () {
@@ -100,3 +100,3 @@ t.end()
     t.same(packet.answers.length, 1, 'one answer')
-    t.same(packet.answers[0], {type: 'AAAA', name: 'hello-world', ttl: 120, data: 'fe80::5ef9:38ff:fe8c:ceaa', class: 1})
+    t.same(packet.answers[0], {type: 'AAAA', name: 'hello-world', ttl: 120, data: 'fe80::5ef9:38ff:fe8c:ceaa', class: 1, flush: false})
     dns.destroy(function () {
@@ -119,3 +119,3 @@ t.end()
     t.same(packet.answers.length, 1, 'one answer')
-    t.same(packet.answers[0], {type: 'SRV', name: 'hello-world', ttl: 120, data: {port: 11111, target: 'hello.world.com', priority: 10, weight: 12}, class: 1})
+    t.same(packet.answers[0], {type: 'SRV', name: 'hello-world', ttl: 120, data: {port: 11111, target: 'hello.world.com', priority: 10, weight: 12}, class: 1, flush: false})
     dns.destroy(function () {
@@ -140,3 +140,3 @@ t.end()
     t.same(packet.answers.length, 1, 'one answer')
-    t.same(packet.answers[0], {type: 'TXT', name: 'hello-world', ttl: 120, data: data, class: 1})
+    t.same(packet.answers[0], {type: 'TXT', name: 'hello-world', ttl: 120, data: data, class: 1, flush: false})
     dns.destroy(function () {
@@ -156,3 +156,3 @@ t.end()
   dns.once('response', function (packet) {
-    t.same(packet.answers[0], {type: 'TXT', name: 'hello-world', ttl: 120, data: new Buffer('00', 'hex'), class: 1})
+    t.same(packet.answers[0], {type: 'TXT', name: 'hello-world', ttl: 120, data: new Buffer('00', 'hex'), class: 1, flush: false})
     dns.destroy(function () {
@@ -165,1 +165,28 @@ t.end()
 })
+
+test('cache flush bit', function (dns, t) {
+  dns.once('query', function (packet) {
+    dns.respond({
+      answers: [
+        {type: 'A', name: 'foo', ttl: 120, data: '127.0.0.1', class: 1, flush: true},
+        {type: 'A', name: 'foo', ttl: 120, data: '127.0.0.2', class: 1, flush: false}
+      ],
+      additionals: [
+        {type: 'A', name: 'foo', ttl: 120, data: '127.0.0.3', class: 1, flush: true}
+      ]
+    })
+  })
+
+  dns.once('response', function (packet) {
+    t.same(packet.answers, [
+      {type: 'A', name: 'foo', ttl: 120, data: '127.0.0.1', class: 1, flush: true},
+      {type: 'A', name: 'foo', ttl: 120, data: '127.0.0.2', class: 1, flush: false}
+    ])
+    t.same(packet.additionals[0], {type: 'A', name: 'foo', ttl: 120, data: '127.0.0.3', class: 1, flush: true})
+    dns.destroy(function () {
+      t.end()
+    })
+  })
+
+  dns.query('foo', 'A')
+})

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Improved metrics

Total package byte prevSize

29454

increased by4.32%

Lines of code

736

increased by4.1%

Number of lines in readme file

208

increased by1.46%

No dependency changes