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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | COLOPHON |
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PAM_CHAUTHTOK(3) Linux-PAM Manual PAM_CHAUTHTOK(3)
pam_chauthtok - updating authentication tokens
#include <security/pam_appl.h>
int pam_chauthtok(pam_handle_t *pamh, int flags);
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 user's
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.
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.
pam_start(3), pam_authenticate(3), pam_setcred(3), pam_get_item(3),
pam_strerror(3), pam(8)
This page is part of the linux-pam (Pluggable Authentication Modules
for Linux) project. Information about the project can be found at
⟨http://www.linux-pam.org/⟩. If you have a bug report for this manual
page, see ⟨//www.linux-pam.org/⟩. This page was obtained from the
tarball Linux-PAM-1.3.0.tar.bz2 fetched from
⟨http://www.linux-pam.org/library/⟩ on 2018-02-02. If you discover
any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page, or
you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail
to man-pages@man7.org
Linux-PAM Manual 04/01/2016 PAM_CHAUTHTOK(3)
Pages that refer to this page: pam(3), pam_acct_mgmt(3), pam_authenticate(3), pam_sm_chauthtok(3), pam_filter(8)
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