The following bug has been logged online:
Bug reference: 1418
Logged by: Craig Ruff
Email address: cruff(at)ucar(dot)edu
PostgreSQL version: 8.0
Operating system: Any
Description: RFC: Challenge/response authentication support
PAM supports challenge response authentication. It is desirable that psql
and the backend support this by displaying the PAM conversation routine
message(s) and returing a response (optionally echoed to the user).
I had a look at the code, and the backend support isn't too bad, but psql
itself does not appear to be structured in a way to handle this easily. The
current method of just closing the backend connection, prompting for the
password and trying again does not work since the one-time password
challenge/response method is stateful.
Unfortunately, at the moment, I don't have the time to delve into fixing
this up further, but thought I'd let the list know in case someone else is
hacking on psql.
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