PAM_CHAUTHTOK(3) Library Functions Manual PAM_CHAUTHTOK(3)

pam_chauthtok — perform password related functions within the PAM framework

Pluggable Authentication Module Library (libpam, -lpam)

#include <sys/types.h>
#include <security/pam_appl.h>

int
pam_chauthtok(pam_handle_t *pamh, int flags);

The pam_chauthtok function attempts to change the authentication token for the user associated with the pam context specified by the pamh argument.

The flags argument is the binary or of zero or more of the following values:

Do not emit any messages.
Change only those authentication tokens that have expired.

If any other bits are set, pam_chauthtok will return PAM_SYMBOL_ERR.

The pam_chauthtok function returns one of the following values:

[PAM_ABORT]
General failure.
[PAM_AUTHTOK_DISABLE_AGING]
Authentication token aging disabled.
[PAM_AUTHTOK_ERR]
Authentication token failure.
[PAM_AUTHTOK_LOCK_BUSY]
Authentication token lock busy.
[PAM_AUTHTOK_RECOVERY_ERR]
Failed to recover old authentication token.
[PAM_BUF_ERR]
Memory buffer error.
[PAM_CONV_ERR]
Conversation failure.
[PAM_PERM_DENIED]
Permission denied.
[PAM_SERVICE_ERR]
Error in service module.
[PAM_SYMBOL_ERR]
Invalid symbol.
[PAM_SYSTEM_ERR]
System error.
[PAM_TRY_AGAIN]
Try again.

pam(3), pam_strerror(3)

X/Open Single Sign-On Service (XSSO) - Pluggable Authentication Modules, June 1997.

The pam_chauthtok function and this manual page were developed for the FreeBSD Project by ThinkSec AS and Network Associates Laboratories, the Security Research Division of Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 (“CBOSS”), as part of the DARPA CHATS research program.

December 21, 2007 macOS 14.5