;;;; Name: getenv.cl
;;;; Purpose: UFFI Example file to get environment variable
;;;; Programmer: Kevin M. Rosenberg
-;;;; Date Started: Mar 2002
+;;;; Date Started: Feb 2002
;;;;
-;;;; Copyright (c) 2002 Kevin M. Rosenberg
+;;;; $Id: getenv.cl,v 1.7 2002/03/14 21:03:12 kevin Exp $
;;;;
-;;;; $Id: getenv.cl,v 1.3 2002/03/10 04:15:33 kevin Exp $
+;;;; This file, part of UFFI, is Copyright (c) 2002 by Kevin M. Rosenberg
;;;;
-;;;; This file is part of UFFI.
-;;;;
-;;;; UFFI is free software; you can redistribute it and/or modify
-;;;; it under the terms of the GNU General Public License (version 2) as
-;;;; published by the Free Software Foundation.
-;;;;
-;;;; UFFI is distributed in the hope that it will be useful,
-;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-;;;; GNU General Public License for more details.
-;;;;
-;;;; You should have received a copy of the GNU General Public License
-;;;; along with UFFI; if not, write to the Free Software Foundation, Inc.,
-;;;; 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+;;;; UFFI 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 :cl-user)
(uffi:def-function ("getenv" c-getenv)
- ((name :c-string))
- :returning :c-string)
+ ((name :cstring))
+ :returning :cstring)
-(defun getenv (key)
+(defun my-getenv (key)
"Returns an environment variable, or NIL if it does not exist"
(check-type key string)
- (uffi:with-c-string (key-native key)
- (let ((value-c-string (c-getenv key-native)))
- (uffi:convert-from-c-string value-c-string))))
+ (uffi:with-cstring (key-native key)
+ (uffi:convert-from-cstring (c-getenv key-native))))
-(format t "~&Environment value for USER key: ~A" (getenv "USER"))
-(format t "~&Environment value for _FOO_ key: ~A" (getenv "_FOO_"))
-
#+test-uffi
(progn
(flet ((print-results (str)
- (format t "~&(getenv ~S) => ~S" str (getenv str))))
+ (format t "~&(getenv ~S) => ~S" str (my-getenv str))))
(print-results "USER")
(print-results "_FOO_")))