--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pam/src/lib.rs	Sun Sep 24 00:22:29 2017 -0600
@@ -0,0 +1,32 @@
+//! Interface to the pluggable authentication module framework (PAM).
+//!
+//! The goal of this library is to provide a type-safe API that can be used to
+//! interact with PAM.  The library is incomplete - currently it supports
+//! a subset of functions for use in a pam authentication module.  A pam module
+//! is a shared library that is invoked to authenticate a user, or to perform
+//! other functions.
+//!
+//! For general information on writing pam modules, see
+//! [The Linux-PAM Module Writers' Guide][module-guide]
+//!
+//! [module-guide]: http://www.linux-pam.org/Linux-PAM-html/Linux-PAM_MWG.html
+//!
+//! A typical authentication module will define an external function called
+//! `pam_sm_authenticate()`, which will use functions in this library to
+//! interrogate the program that requested authentication for more information,
+//! and to render a result.  For a working example that uses this library, see
+//! [toznyauth-pam][].
+//!
+//! [toznyauth-pam]: https://github.com/tozny/toznyauth-pam
+//!
+//! Note that constants that are normally read from pam header files are
+//! hard-coded in the `constants` module.  The values there are taken from
+//! a Linux system.  That means that it might take some work to get this library
+//! to work on other platforms.
+
+extern crate libc;
+
+pub mod conv;
+pub mod constants;
+pub mod items;
+pub mod module;