r10799: 2005-11-07 Kevin Rosenberg (kevin@rosenberg.net)

[uffi.git] / src / os.lisp

diff --git a/src/os.lisp b/src/os.lisp
index 3e3a60b1d9676d0dc3ddfa975c48ed53cdb727cb..075be960a80da83749c49669fdaa04fb3c23758d 100644 (file)
--- a/src/os.lisp
+++ b/src/os.lisp
@@ -7,19 +7,45 @@
 ;;;; Programmer:    Kevin M. Rosenberg
 ;;;; Date Started:  Sep 2002 
 ;;;;
-;;;; $Id: os.lisp,v 1.5 2003/06/06 21:59:18 kevin Exp $
+;;;; $Id$
 ;;;;
-;;;; This file, part of UFFI, is Copyright (c) 2002 by Kevin M. Rosenberg.
-;;;; Much of this code was taken from other open source project and copyright
-;;;; for that code is noted below where appropriate.
+;;;; This file, part of UFFI, is Copyright (c) 2002-2005 by Kevin M. Rosenberg.
 ;;;;
-;;;; 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 #:uffi)
 
+
+(defun getenv (var)
+  "Return the value of the environment variable."
+  #+allegro (sys::getenv (string var))
+  #+clisp (sys::getenv (string var))
+  #+cmu (cdr (assoc (string var) ext:*environment-list* :test #'equalp
+                    :key #'string))
+  #+gcl (si:getenv (string var))
+  #+lispworks (lw:environment-variable (string var))
+  #+lucid (lcl:environment-variable (string var))
+  #+mcl (ccl::getenv var)
+  #+sbcl (sb-ext:posix-getenv var)
+  #-(or allegro clisp cmu gcl lispworks lucid mcl sbcl)
+  (error 'not-implemented :proc (list 'getenv var)))
+
+(defun (setf getenv) (val var)
+  "Set an environment variable."
+  #+allegro (setf (sys::getenv (string var)) (string val))
+  #+clisp (setf (sys::getenv (string var)) (string val))
+  #+cmu (let ((cell (assoc (string var) ext:*environment-list* :test #'equalp
+                           :key #'string)))
+          (if cell
+              (setf (cdr cell) (string val))
+              (push (cons (intern (string var) "KEYWORD") (string val)) ext:*environment-list*)))
+  #+gcl (si:setenv (string var) (string val))
+  #+lispworks (setf (lw:environment-variable (string var)) (string val))
+  #+lucid (setf (lcl:environment-variable (string var)) (string val))
+  #-(or allegro clisp cmu gcl lispworks lucid)
+  (error 'not-implemented :proc (list '(setf getenv) var)))
+
+
 ;; modified from function ASDF -- Copyright Dan Barlow and Contributors
 
 (defun run-shell-command (control-string  &rest args &key output)