* Should the dns_*() routines be renamed to res_*() to be compatible
  with the Sun Solaris 2 libresolv.so Name Service Switch functions?

* Should the YP nickname to real map name translation table be
  hard coded in the library?

* Fix/include more system header files so the set is complete
  (ie, don't rely on the system header files).
 
* Include herror.c into the DNS sources.

* Make the files passwd shadow routines default to grokking /etc/passwd
  if /etc/shadow is missing.
 
* Write the NIS+ middle layer functions
 
* Make sure the NIS+ routines are returning the same return values
  and error codes as Suns routines do.

* Implement the routines in nis/src/nis_dummy.c
 
* Rewrite yp_all() to really use a TCP link.

* Implement the DNS/Hesiod middle level routines.
