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authorRene Treffer <treffer@measite.de>2014-07-23 22:43:12 +0200
committerRene Treffer <treffer@measite.de>2014-07-23 22:43:12 +0200
commit2bddcc9f997e5b1e565478e99c55488c86a85e76 (patch)
tree16f74c9c90dfea232a4d17e56bdb934d6b8c1506 /src/main/java/de/measite/minidns
parent70d403f0b612f6cb26b8fc194e35c622c5383167 (diff)
Add parsing for mdns QU records (RFC6762)
Diffstat (limited to 'src/main/java/de/measite/minidns')
-rw-r--r--src/main/java/de/measite/minidns/Record.java16
1 files changed, 15 insertions, 1 deletions
diff --git a/src/main/java/de/measite/minidns/Record.java b/src/main/java/de/measite/minidns/Record.java
index 6aaf4f7d..26af4711 100644
--- a/src/main/java/de/measite/minidns/Record.java
+++ b/src/main/java/de/measite/minidns/Record.java
@@ -223,6 +223,11 @@ public class Record {
protected Data payloadData;
/**
+ * MDNS defines the highest bit of the class as the unicast query bit.
+ */
+ protected boolean unicastQuery;
+
+ /**
* Parse a given record based on the full message data and the current
* stream position.
* @param dis The DataInputStream positioned at the first record byte.
@@ -233,7 +238,8 @@ public class Record {
this.name = NameUtil.parse(dis, data);
this.type = TYPE.getType(dis.readUnsignedShort());
int clazzValue = dis.readUnsignedShort();
- this.clazz = CLASS.getClass(clazzValue);
+ this.clazz = CLASS.getClass(clazzValue & 0x7fff);
+ this.unicastQuery = (clazzValue & 0x8000) > 0;
if (this.clazz == null) {
System.out.println("Unknown class " + clazzValue);
}
@@ -299,6 +305,14 @@ public class Record {
}
/**
+ * See if this query/response was a unicast query (highest class bit set).
+ * @return True if it is a unicast query/response record.
+ */
+ public boolean isUnicastQuery() {
+ return unicastQuery;
+ }
+
+ /**
* The generic record name, e.g. "measite.de".
* @return The record name.
*/