The BER API is currently used by ldap, ldapd, ldapctl, ypldap, snmpd, and
snmpctl. Separate copies of ber.[ch] have existed and been maintained in sync
in ldap, ldapd, ypldap and snmpd.

This commit

The BER API is currently used by ldap, ldapd, ldapctl, ypldap, snmpd, and
snmpctl. Separate copies of ber.[ch] have existed and been maintained in sync
in ldap, ldapd, ypldap and snmpd.

This commit moves the BER API into /usr/lib/libutil. All current consumers
already link libutil. ldapd and snmpd regress passes, and release builds.

With help from tb@ and guenther@.

ok deraadt@, tb@

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no need to generate y.tab.h if nothing uses it, set YFLAGS to nothing
instead of CLEANFILES += y.tab.h

okay millert@

work on making log.c similar in all daemons:

move daemon-local functions into new logmsg.c, and reduce
the (mostly whitespace) differences so that log.c's can be diffed easily.

ok krw@ jmatthew@

Correctly list all libraries required.

unbreak the tree:

after moving ldapd to the libtls api, ldapctl needs to link against
libtls instead of libcrypto

ok krw@, jmatthew@

Validate matching rules against attribute syntaxes. All matching rules from
RFC 4517 are recognized, except the optional wordMatch and keywordMatch.

Requires a current core.schema file.

Need syntax.c to build the schema parser. Sorry for that.

Add the new schema parser.
noticed by deraadt, sorry!

Re-implement compaction and (re-)indexing outside ldapd.

Initial import of ldapd, a small LDAP daemon. Work in progress.

ok deraadt@ jacekm@ gilles@ back@ henning@ blambert@