Conversion utilities

This is a collection of four programs for converting between hosts files and zones files:

• htoh - Read a hosts file from stdin, output it in a normalised form to stdout.
• htoz - Read a hosts file from stdin, convert it to a zone file, and output it in a normalised form to stdout.
• ztoh - Read a zone file from stdin, convert it to a hosts file, and output it in a normalised form to stdout.
• ztoz - Read a zone file from stdin, output it in a normalised form to stdout.

ztoh

Hosts files can only contain non-wildcard A and AAAA records, so this conversion is lossy.

• --strict - Return an error if the zone file contains any records which cannot be represented in a hosts file