OPENPAM_TTYCONV(3) Library Functions Manual OPENPAM_TTYCONV(3)
NAME
openpam_ttyconvsimple tty-based conversation function
LIBRARY
Pluggable Authentication Module Library (libpam, -lpam)
SYNOPSIS
#include <sys/types.h>
#include <security/pam_appl.h>
#include <security/openpam.h>
int
openpam_ttyconv(int n, const struct pam_message **msg, struct pam_response **resp, void *data);
DESCRIPTION
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 output 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 seconds.
RETURN VALUES
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.
SEE ALSO
STANDARDS
The openpam_ttyconv function is an OpenPAM extension.
AUTHORS
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.