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pam_chauthtok(3) — Linux manual page

PAM_CHAUTHTOK(3)             Linux-PAM ManualPAM_CHAUTHTOK(3)

NAME        top

       pam_chauthtok - updating authentication tokens

SYNOPSIS        top

#include <security/pam_appl.h>int pam_chauthtok(pam_handle_t *pamh, intflags);

DESCRIPTION        top

       Thepam_chauthtokfunction is used to change the authentication       token for a given user (as indicated by the state associated with       the handlepamh).       Thepamh 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.

RETURN VALUES        top

       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        top

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

COLOPHON        top

       This page is part of thelinux-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 project's upstream Git repository       ⟨https://github.com/linux-pam/linux-pam.git⟩ on 2023-12-22.  (At       that time, the date of the most recent commit that was found in       the repository was 2023-12-18.)  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 isnot part of the original manual page), send a mail to       man-pages@man7.orgLinux-PAM Manual                12/22/2023PAM_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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