PAM_CHAUTHTOK(3) Linux-PAM Manual PAM_CHAUTHTOK(3)NAMEpam_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 ALSOpam_start(3), pam_authenticate(3), pam_setcred(3), pam_get_item(3),
pam_strerror(3), pam(8)Linux-PAM Manual 06/27/2006 PAM_CHAUTHTOK(3)
