A lot of macros in cuckoo-hash-table.c replaced by constants and
  static inline functions.
Some debug output added.
dns-simple: RDATA is now allocated separately, not together with
  RR.
There is some bug, probably in hash table insertion, resulting
  in "Invalid pointer" error when destroying certain item in hash
  table.

Added "generation" to hash table items and proper methods, hash counting, etc.
Added checks for NULL pointers when deleting items from table.
Fixed dnss_destroy_rr() (deleting RDATA twice).
Minor changes and fixes.
Universal system's functions moved to .c file.

All items are now properly created, copied and destroyed.
  (too much copying - should avoid in later development)

Modified API of dns-simple 'library':
  Added destructors which take ** to the object
    and are setting the pointer to NULL.
  dnss_dname_to_wire() now takes the position and allocated size as parameters.
  dnss_create_response(), dnss_create_error_response() and dnss_wire_format()
    now all return errors as appropriate.

Fixed copying issues in dns-simple 'library':
  Questions and RRs are now copied entirely, not just pointers.
    (See functions dnss_copy_questions() and dnss_copy_rrs().)
  Added some checks for NULL-pointers when deallocating.

Added pointer to hash table item destructor function to the hash table.

ck_destroy_table() rewritten to destroy individual items in the table and buffer.

A lot of checks added (mostly for result of malloc).

Redundant and old code removed.

Bugfix in default A RR value (was string, should be 4 integers).
Ignoring query if response too long.
Removed some redundant code.
Added some debug output.

Modified functions hash_from_file() and test_lookup_from_file().
Some additional checks for successful memory allocation added.

Added use of the socket manager to listen for queries.
Added function answer_request() to be called from worker threads.

Replaced some macros by (static) const variables.
Added answer_request() function to be called.
Corrected dnss_create_response().
Added dnss_create_error_response().
dnss_wire_format() fixed.
dnss_parse_query() fixed.
socket manager fixed.

Creating default A RRs with dummy address (loopback), this has no implications
  on performance testing.
Fixed some bugs in dns-simple.
Added header common.h to contain common typedefs, constants and macros.
More consistent debug messages (better #ifdefs)

Removed read_domain_names() and test_lookup() functions.
Added dnss_wire_format(), dnss_dname_to_wire() and dnss_parse_query().
Many functions in universal-system.h and bitset.h not inline any more
  (should check it later and find a way to make them inline).

Classic (2-ary) cuckoo hash table with char* keys.
  (Insert, find, delete implemented.)
Simple bitset (not used right now).
Several hash functions downloaded from web.
Universal system of hash functions (according to J. Katajainen & M. Lykke
  of University of Copenhagen).
Several basic data structures for DNS data - not finished yet.