Alternative (more granular) approach to a DNS library.

Completely usable DNS library. Most widely used Resource Records are supported including the DNSSEC types. It follows a lean and mean philosophy. If there is stuff you should know as a DNS programmer there isn't a convenience function for it. For instance I'm pondering if a zone-like structure should be implemented in the library.

Features:

• UDP/TCP queries, IPv4 and IPv6;
• TSIG;
• EDNS0;
• AXFR/IXFR;
• DNS name compression;
• Client and server side programming (mimicking the http package);
• Asynchronous queries for client and server;
• RFC 1035 zone file parsing.

Sample programs can be found in the _examples directory. They can be build with: make examples (after the dns package has been installed)

Have fun!

Miek Gieben - 2010-2012 - miek@miek.nl

Supported RFCs and features include:

• 103{4,5} - DNS standard
• 1982 - Serial Arithmetic
• 1876 - LOC record (incomplete)
• 1995 - IXFR
• 1996 - DNS notify
• 2136 - DNS Update (dynamic updates)
• 2181 - RRset definition
• 2537 - RSAMD5 DNS keys
• 2065 - DNSSEC (updated in later RFCs)
• 2671 - EDNS
• 2782 - SRV
• 2845 - TSIG
• 2915 - NAPTR
• 3110 - RSASHA1 DNS keys
• 3225 - DO bit (DNSSEC OK)
• 340{1,2,3} - NAPTR
• 3597 - Unkown RRs
• 403{3,4,5} - DNSSEC + validation functions
• 4255 - SSHFP
• 4408 - SPF
• 4509 - SHA256 Hash in DS
• 4635 - HMAC SHA TSIG
• 4892 - id.server
• 5001 - NSID
• 5155 - NSEC
• 5933 - GOST
• 5936 - AXFR
• xxxx - ECDSA

Loosely based upon:

• ldns
• NSD
• Net::DNS
• GRONG