;;;; Name: gethostname.cl
;;;; Purpose: UFFI Example file to get hostname of system
;;;; Programmer: Kevin M. Rosenberg
-;;;; Date Started: Mar 2002
+;;;; Date Started: Feb 2002
;;;;
-;;;; Copyright (c) 2002 Kevin M. Rosenberg
+;;;; $Id: gethostname.cl,v 1.8 2002/03/22 20:51:08 kevin Exp $
;;;;
-;;;; $Id: gethostname.cl,v 1.2 2002/03/09 21:19:31 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)
;;; This example is inspired by the example on the CL-Cookbook web site
(uffi:def-function ("gethostname" c-gethostname)
- ((name :c-string)
+ ((name (* :unsigned-char))
(len :int))
:returning :int)
(uffi:convert-from-foreign-string name)
(error "gethostname() failed."))
(uffi:free-foreign-object name))))
-
-(format t "~&Hostname: ~A" (gethostname))
+
+(defun gethostname2 ()
+ "Returns the hostname"
+ (uffi:with-foreign-object (name (:array :unsigned-char 256))
+ (if (zerop (c-gethostname (uffi:char-array-to-pointer name) 256))
+ (uffi:convert-from-foreign-string name)
+ (error "gethostname() failed."))))
+
+#+test-uffi
+(format t "~&Hostname (technique 1): ~A" (gethostname))
+(format t "~&Hostname (technique 2): ~A" (gethostname2))