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pam_chauthtok(3) [opendarwin man page]

PAM_CHAUTHTOK(3)					     App. Programmers' 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
pam_chauthtok Use this function to rejuvenate the authentication tokens (passwords etc.) of an applicant user. Note, the application should not pre-authenticate the user, as this is performed (if required) by the Linux-PAM framework. The flags argument can optionally take the value, PAM_CHANGE_EXPIRED_AUTHTOK. In such cases the framework is only required to update those authentication tokens that have expired. Without this argument, the framework will attempt to obtain new tokens for all configured authen- tication mechanisms. The details of the types and number of such schemes should not concern the calling application. RETURN VALUE
A successful return from this function will be indicated with PAM_SUCCESS. Specific errors of special interest when calling this function are PAM_AUTHTOK_ERROR - a valid new token was not obtained PAM_AUTHTOK_RECOVERY_ERR - old authentication token was not available PAM_AUTHTOK_LOCK_BUSY - a resource needed to update the token was locked (try again later) PAM_AUTHTOK_DISABLE_AGING - one or more of the authentication modules does not honor authentication token aging PAM_TRY_AGAIN - one or more authentication mechanism is not prepared to update a token at this time In general other return values may be returned. They should be treated as indicating failure. ERRORS
May be translated to text with pam_strerror(3). CONFORMING TO
DCE-RFC 86.0, October 1995. BUGS
none known. SEE ALSO
pam_start(3), pam_authenticate(3), pam_setcred(3), pam_get_item(3), pam_strerror(3) and pam(8). Also, see the three Linux-PAM Guides, for System administrators, module developers, and application developers. Linux-PAM 0.55 1997 Jan 4 PAM_CHAUTHTOK(3)

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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(7) Linux-PAM Manual 06/04/2011 PAM_CHAUTHTOK(3)
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