PAM module function return values...

[Michael Chang <miranda@xxxxxxxxxxxxxx>]

Hi folks.


I'm currently writing a module, and while the documentation is *okay*,
there are some points which I'd like clarified:


pam_sm_chauthtok(...)
 If, during the preliminary check, the old authentication token was unable
 to be retrieved, is it okay to return `PAM_AUTHTOK_RECOVERY_ERR'?  The
 documentation implies that the only valid return value during the
 preliminary check, in case of failure, is `PAM_TRY_AGAIN'.


pam_get_item(...)

 For modules which call this function, the documentation does not state
 what the possible return values are.



Lastly: Is there any _full_ and well-prepared list of return codes and
item types (used by pam_get_item() and pam_set_item() for `int item_type')
anywhere?



Thanks in advance,
Michael




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