Re: [vchkpw] Stability of error codes from vchkpw

[Bert JW Regeer]

On Aug 5, 2006, at 09:44:44  GMT+02:00, Charles Butcher wrote:

I am writing an SMTP authentication plugin for qpsmtpd which will  
call vchkpw.


Different error codes require different treatment; e.g. "incorrect  
password" is fatal, whereas some errors should probably allow a  
retry before dropping the connection.


So can the various error code values from vchkpw be relied upon, or  
are they subject to change?
Are they officially published somewhere in the doco/specs or is the  
source code the only authoritative reference?




They have to adhere to the standard set by the checkpassword  
implementation from DJB. http://cr.yp.to/checkpwd/interface.html is  
the interface, it's exit codes and how to react upon those exit codes.


Good luck,
Bert JW Regeer

smime.p7s
Description: S/MIME cryptographic signature

[vchkpw] Stability of error codes from vchkpw

[Charles Butcher]

I am writing an SMTP authentication plugin for qpsmtpd which will call 
vchkpw.


Different error codes require different treatment; e.g. "incorrect 
password" is fatal, whereas some errors should probably allow a retry 
before dropping the connection.


So can the various error code values from vchkpw be relied upon, or are 
they subject to change?
Are they officially published somewhere in the doco/specs or is the 
source code the only authoritative reference?