1 ;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
2 ;;;; *************************************************************************
3 ;;;; FILE IDENTIFICATION
6 ;;;; Purpose: UFFI Example file to get environment variable
7 ;;;; Programmer: Kevin M. Rosenberg
8 ;;;; Date Started: Feb 2002
10 ;;;; This file, part of UFFI, is Copyright (c) 2002-2010 by Kevin M. Rosenberg
12 ;;;; *************************************************************************
14 (in-package #:uffi-tests)
17 (uffi:def-function ("getenv" c-getenv)
21 (uffi:def-function ("setenv" c-setenv)
27 (uffi:def-function ("unsetenv" c-unsetenv)
31 (defun my-getenv (key)
32 "Returns an environment variable, or NIL if it does not exist"
33 (check-type key string)
34 (uffi:with-cstring (key-native key)
35 (uffi:convert-from-cstring (c-getenv key-native))))
37 (defun my-setenv (key name &optional (overwrite t))
38 "Returns an environment variable, or NIL if it does not exist"
39 (check-type key string)
40 (check-type name string)
41 (setq overwrite (if overwrite 1 0))
42 (uffi:with-cstrings ((key-native key)
44 (c-setenv key-native name-native (if overwrite 1 0))))
46 (defun my-unsetenv (key)
47 "Returns an environment variable, or NIL if it does not exist"
48 (check-type key string)
49 (uffi:with-cstrings ((key-native key))
50 (c-unsetenv key-native)))
52 (deftest :getenv.1 (progn
53 (my-unsetenv "__UFFI_FOO1__")
54 (my-getenv "__UFFI_FOO1__"))
56 (deftest :getenv.2 (progn
57 (my-setenv "__UFFI_FOO1__" "UFFI-TEST")
58 (my-getenv "__UFFI_FOO1__"))