Status of ldap_init_fd and LDAP_PROTO_EXT?

Hi!

What's the status of those two? They are mentioned in the manpages of for example Debian Jessie and FreeBSD 11 (maybe from ports?), but the manpage explicitly says you have to #include <ldap_pvt.h>, which is not shipped.

What's the reason of them being in ldap_pvt.h? Are they supposed to change in the future? The function is now more than 10 years old, without too much change in that decade.

Not being able to fully asynchronously connect to a server was my main reason to start my own little ldap library a few years ago, so I think this can be useful code :-)

Thanks, Volker