saslcallbacks(10 July 2001) saslcallbacks(10 July 2001)

NAME
       saslcallbacks - How to work with SASL callbacks


SYNOPSIS
       ##iinncclluuddee <>


DESCRIPTION
       ssaassllccaallllbbaacckkss  are  used  when  the application needs some information
       from the application. Common reasons are getting for getting  usernames
       and passwords. A client MUST specify what callbacks they support in the
       saslclient/serverinit()  or  saslclient/servernew()  calls.  If  an
       authentication mechanism needs a callback that the application does not
       state it supports it cannot be used.

       If a callback has an iidd parameter that should be checked to  make  sure
       you are giving the appropriate value.

       If  an application is using the client side of the library functions to
       handle the callbacks are not necessary.  Instead  the  application  may
       deal  with  callbacks via SASLINTERACT's. See saslclientstart/step()
       for more information.

       The list of callbacks follows:


CCoommmmoonn CCaallllbbaacckkss
       saslgetoptt
               Get an option value

       sasllogt
               Log message handler

       saslgetpatht
               Get path to search for mechanisms

       saslverifyfilet
               Verify files for use by SASL

       saslcanonusert
               Username canonicalization function.


CClliieenntt-oonnllyy CCaallllbbaacckkss
       saslgetsimplet
               Get user/language list

       saslgetsecrett
               Get authentication secret

       saslchalpromptt
               Display challenge and prompt for response

       saslgetrealmt
               Get the realm for authentication


SSeerrvveerr-oonnllyy CCaallllbbaacckkss
       saslauthorizet
               Authorize policy callback

       saslserveruserdbcheckpasst
               verify plaintext password

       saslserveruserdbsetpasst
               set plaintext password


RREETTUURRNN VVAALLUUEE
       SASL callback functions should return SASL return codes. See sasl.h for
       a complete list. SASLOK typically indicates success.


CCOONNFFOORRMMIINNGG TTOO
       RFC 2222


SEE ALSO
       sasl(3),  saslerrors(3), saslauthorizet(3), sasllogt(3), saslget-
       patht(3),  saslverifyfilet(3),  saslcanonusert(3),   saslgetsim-
       ple(3),  saslgetsecrett(3), saslchalpromptt(3), saslgetrealmt(3),
       saslauthorizet(3),                 saslserveruserdbcheckpasst(3),
       saslserveruserdbsetpasst(3)



SASL man pages                       SASL         saslcallbacks(10 July 2001)