MFC r304033:

Increase timeout from 10 minutes to 20 minutes for all tests

On particular slow networks, it can (on average) take longer to
resolve hosts to IP* addresses. 20 minutes seemed reasonable for
my work network

This will be solved in a more meaningful way (if possible) using
concurrency in the near future

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Increase the timeout for resolv_test from the default (300 seconds) to
450 seconds

This is required on slower network connections, and on older releases
(stable/10 seems to be slower as far as name resolution goes.. not sure
why yet).

Remove an outdated comment in the Makefile from when I was working on
this code over a year ago on github

MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division

Integrate tools/regression/lib/libc/resolv into the FreeBSD test suite as
lib/libc/tests/resolv

Convert the testcases to ATF

MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division

r291359 was incorrect. Skip over tokens that start with `#' as fgetln can
return more than one '\n' delimited line in a buffer

Handle empty lines too, just in case

MFC after: 3 days
X-MFC with: r291359

Skip over lines that start with # (comments)

MFC after: 3 days

Non-void function should return a value.

Found by: clang

The NetBSD Foundation has granted permission to remove clause 3 and 4 from
their software.

Obtained from: NetBSD

- add $FreeBSD$.
- do service lookup.
- add options to use gethostbyname(3) or getipnodebyname(3) instead
of getaddrinfo(3).
- add option to do reverse lookup.

This commit was generated by cvs2svn to compensate for changes in r145857,
which included commits to RCS files with non-trunk default branches.

import of parallel name resolution test.

Obtained from: NetBSD