Info message for LDAP_SERVER_DOWN in case of SSL/TLS failure (ITS#1995)

[michael@stroeder.com]

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URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (62.224.169.230)


If something went wrong during establishing a SSL/TLS connection the API returns
LDAP_SERVER_DOWN. So far, so good. But the programmer is guessing what caused
the error.

For the programmer's convenience and to avoid a lot of traffic on the mailing
list the info field could contain a short description about what went wrong.

Examples:
"Issuer certificate of server certificate not found."
"CN attribute did not match host name."

Maybe some messages generated by OpenSSL could be used directly?