NetBSD 6.1.5 - man page for openpam_ttyconv (netbsd section 3)
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OPENPAM_TTYCONV(3) BSD Library Functions Manual OPENPAM_TTYCONV(3)
openpam_ttyconv -- simple tty-based conversation function
Pluggable Authentication Module Library (libpam, -lpam)
openpam_ttyconv(int n, const struct pam_message **msg, struct pam_response **resp,
The openpam_ttyconv function is a standard conversation function suitable for use on TTY
devices. It should be adequate for the needs of most text-based interactive programs.
The openpam_ttyconv function displays a prompt to, and reads in a password from /dev/tty. If
this file is not accessible, openpam_ttyconv displays the prompt on the standard error out-
put and reads from the standard input.
The openpam_ttyconv function allows the application to specify a timeout for user input by
setting the global integer variable openpam_ttyconv_timeout to the length of the timeout in
The openpam_ttyconv function returns one of the following values:
[PAM_BUF_ERR] Memory buffer error.
[PAM_CONV_ERR] Conversation failure.
[PAM_SYSTEM_ERR] System error.
getpass(3), openpam_nullconv(3), pam(3), pam_prompt(3), pam_strerror(3), pam_vprompt(3)
The openpam_ttyconv function is an OpenPAM extension.
The openpam_ttyconv 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.
BSD December 18, 2011 BSD
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