tools: Fix issues with ndns-dig

- Handle the case when validator.conf is not present and anchors cannot
  be found (default path for anchor lookups is $SYSCONFDIR/ndns)

- Abort ndns-dig when positional parameters are omitted

refs: #2276

Change-Id: Id70d4b219254f5b221990a38d41471b920aa1521
2 files changed
tree: 5c990b3a0aac6a31e9c5ff7aab53f8373d23ff9a
  1. .jenkins.d/
  2. .waf-tools/
  3. docs/
  4. src/
  5. tests/
  6. tools/
  7. .gitignore
  8. .jenkins
  9. .travis.yml
  10. AUTHORS.md
  11. log4cxx.properties.sample.in
  12. ndns.conf.sample.in
  13. README.md
  14. validator.conf.sample.in
  15. waf
  16. wscript
README.md

NDNS: Domain Name Service for Named Data Networking

NDNS is a completely distributed database system that largely mimics the structure of the DNS system in today's Internet but operates within the NDN architecture. Although the design of NDNS was primarily driven with a desire to provide support for cryptographic key distribution and routing scalability management, we believe that NDNS can also serve a number of other purposes during the development and deployment of the NDN architecture in coming years.