pam_chauthtok(3) - phpMan

PAM_CHAUTHTOK(3)                         Linux-PAM Manual                        PAM_CHAUTHTOK(3)



NAME
       pam_chauthtok - updating authentication tokens

SYNOPSIS
       #include <security/pam_appl.h>

       int pam_chauthtok(pam_handle_t *pamh, int flags);

DESCRIPTION
       The pam_chauthtok function is used to change the authentication token for a given user (as
       indicated by the state associated with the handle pamh).

       The pamh argument is an authentication handle obtained by a prior call to pam_start(). The
       flags argument is the binary or of zero or more of the following values:

       PAM_SILENT
           Do not emit any messages.

       PAM_CHANGE_EXPIRED_AUTHTOK
           This argument indicates to the modules that the users authentication token (password)
           should only be changed if it has expired. If this argument is not passed, the
           application requires that all authentication tokens are to be changed.

RETURN VALUES
       PAM_AUTHTOK_ERR
           A module was unable to obtain the new authentication token.

       PAM_AUTHTOK_RECOVERY_ERR
           A module was unable to obtain the old authentication token.

       PAM_AUTHTOK_LOCK_BUSY
           One or more of the modules was unable to change the authentication token since it is
           currently locked.

       PAM_AUTHTOK_DISABLE_AGING
           Authentication token aging has been disabled for at least one of the modules.

       PAM_PERM_DENIED
           Permission denied.

       PAM_SUCCESS
           The authentication token was successfully updated.

       PAM_TRY_AGAIN
           Not all of the modules were in a position to update the authentication token(s). In
           such a case none of the user's authentication tokens are updated.

       PAM_USER_UNKNOWN
           User unknown to password service.

SEE ALSO
       pam_start(3), pam_authenticate(3), pam_setcred(3), pam_get_item(3), pam_strerror(3),
       pam(8)



Linux-PAM Manual                            09/19/2013                           PAM_CHAUTHTOK(3)

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