/usr/share/common-lisp/source/kmrcl/repl.lisp is in cl-kmrcl 1.106-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 | ;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Base: 10 -*-
;;;; *************************************************************************
;;;; FILE IDENTIFICATION
;;;;
;;;; Name: repl.lisp
;;;; Purpose: A repl server
;;;; Programmer: Kevin M. Rosenberg
;;;; Date Started: Apr 2000
;;;;
;;;; This file, part of KMRCL, is Copyright (c) 2002 by Kevin M. Rosenberg
;;;;
;;;; KMRCL users are granted the rights to distribute and use this software
;;;; as governed by the terms of the Lisp Lesser GNU Public License
;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
;;;; *************************************************************************
(in-package #:kmrcl)
(defconstant +default-repl-server-port+ 4000)
(defclass repl ()
((listener :initarg :listener :accessor listener
:initform nil)))
(defun make-repl (&key (port +default-repl-server-port+)
announce user-checker remote-host-checker)
(make-instance 'listener
:port port
:base-name "repl"
:function 'repl-worker
:function-args (list user-checker announce)
:format :text
:wait nil
:remote-host-checker remote-host-checker
:catch-errors nil))
(defun init/repl (repl state)
(init/listener repl state))
(defun repl-worker (conn user-checker announce)
(when announce
(format conn "~A~%" announce)
(force-output conn))
(when user-checker
(let (login password)
(format conn "login: ")
(finish-output conn)
(setq login (read-socket-line conn))
(format conn "password: ")
(finish-output conn)
(setq password (read-socket-line conn))
(unless (funcall user-checker login password)
(format conn "Invalid login~%")
(finish-output conn)
(return-from repl-worker))))
#+allegro
(tpl::start-interactive-top-level
conn
#'tpl::top-level-read-eval-print-loop
nil)
#-allegro
(repl-on-stream conn)
)
(defun read-socket-line (stream)
(string-right-trim-one-char #\return
(read-line stream nil nil)))
(defun print-prompt (stream)
(format stream "~&~A> " (package-name *package*))
(force-output stream))
(defun repl-on-stream (stream)
(let ((*standard-input* stream)
(*standard-output* stream)
(*terminal-io* stream)
(*debug-io* stream))
#|
#+sbcl
(if (and (find-package 'sb-aclrepl)
(fboundp (intern "REPL-FUN" "SB-ACLREPL")))
(sb-aclrepl::repl-fun)
(%repl))
#-sbcl
|#
(%repl)))
(defun %repl ()
(loop
(print-prompt *standard-output*)
(let ((form (read *standard-input*)))
(format *standard-output* "~&~S~%" (eval form)))))
|