Remove options added in 1.18, commitid: UhxHPgtT2Pzeg4Yw due to some
level of controversy about their inclusion.

fix error handling.

Sort.

Add the following options
-A Display the FQDN of each address on all interfaces.
-a Display alias name(s) of the host.
-d Display the DNS domain.
-f Display the FQDN for the hostname.
-I Display each IP address on all interfaces.
-i Display the IP address(es) for the hostname.

branches: 1.17.12;
Use __dead

Remove the \n and tabs from the __COPYRIGHT() strings.

branches: 1.15.32;
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22249, verified by myself.

ANSIfy and KNF fixes, use {g,s}etprogname. Patch by Petri Koistinen.

Delint.

- use an array MAXHOSTNAMELEN+1 size to hold hostnames
- ensure hostname from gethostname() is nul-terminated in all cases
- minor KNF
- use MAXHOSTNAMELEN over various other values/defines
- be safe will buffers that hold hostnames

Add WARNS=1

Sync with 4.4lite2

convert to new RCS id conventions.

Make the usage messages more closely match the man pages.

Reference domainname(1), and check for too many arguments.

Merge 4.4-Lite version.

Include appropriate header files to bring prototypes into scope.
Cleaned up man page.

Add RCS identifiers.

changed "Id" to "Header" for rcsids

added rcs ids to all files

branches: 1.1.1;
Initial revision

imported from 44lite2

Import original 4.4-Lite version.

initial import of 386bsd-0.1 sources

Sync with wrstuden-revivesa-base-2.

sync with HEAD