Describe the bug
This module doesn't agree with all other ldap client implementations on how to parse a ldapi:// URL. Everyone else expects ldapi://escaped_path/dn where this module reads as ldapi://ignored/path.

For ldapX urls, the "path" portion of the URL is reserved for a DN (e.g. search base), see RFC4516, and for ldapi:// the socket location is supposed be stored in the "host" part. Also see man 5 ldap.conf for example.

To Reproduce
Compare ldapsearch -H ldapi://encoded_path and DialURL("ldapi://encoded_path"), DialURL connects to the "default" path.

And then compare e.g. ldapsearch -H ldapi:///path (will fail) and DialURL("ldapi:///path"), this module uses the DN part of the URL instead.

Expected behavior
Parse ldapi://escaped_path/dn as intended.

Code snippets
See above

Additional context
If (temporary?) backwards compatibility is desired, an ldapi:// URL with an empty "host" part and a path argument containing a / might be considered as existing behaviour.