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Written by Hallvard B. Furuseth and placed into the public domain.
This software is not subject to any license of the University of Oslo.
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Bug fixes:
- acl_regex_normalized_dn(pattern):
  * used pattern->bv_len even though it claimed not to,
  * would walk past the end of strings that ended (incorrectly)
    with a single '\'.
- style=regex checked for "^.*$$" twice but not for "^.*$".
- the code did not notice if dnNormalize2() failed, and would
  (at least in one case) treat a bad DN as '*'.
Some cleanup:
- changed regtest() to return void, since the return value was unused.
- changed acl_regex_normalized_dn() to take a string input argument
  instead of a half-filled berval, it looks saner that way.

Hallvard B. Furuseth <h.b.furuseth@usit.uio.no>, April 2002.