encodeDomainName() — netty Function Reference

Architecture documentation for the encodeDomainName() function in DnsCodecUtil.java from the netty codebase.

Function java ProtocolCodecs DNS called by 1

Entity Profile

ProtocolCodecs→ DNS→ encodeDomainName() — netty Function Reference

Dependency Diagram

graph TD
  e934b2cf_575e_e555_ddd2_e343ea873972["encodeDomainName()"]
  b5deaff8_7855_06da_81ac_dd1ff0412cf2["DnsCodecUtil"]
  e934b2cf_575e_e555_ddd2_e343ea873972 -->|defined in| b5deaff8_7855_06da_81ac_dd1ff0412cf2
  54bc4f71_0cae_4aae_6759_217b6cada96d["ByteBuf()"]
  54bc4f71_0cae_4aae_6759_217b6cada96d -->|calls| e934b2cf_575e_e555_ddd2_e343ea873972
  style e934b2cf_575e_e555_ddd2_e343ea873972 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-dns/src/main/java/io/netty/handler/codec/dns/DnsCodecUtil.java lines 31–51

    static void encodeDomainName(String name, ByteBuf buf) {
        if (ROOT.equals(name)) {
            // Root domain
            buf.writeByte(0);
            return;
        }

        final String[] labels = name.split("\\.");
        for (String label : labels) {
            final int labelLen = label.length();
            if (labelLen == 0) {
                // zero-length label means the end of the name.
                break;
            }

            buf.writeByte(labelLen);
            ByteBufUtil.writeAscii(buf, label);
        }

        buf.writeByte(0); // marks end of name field
    }