Copyright (c) 1998, 1999 by Alessandro Rubini. This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v0.4 (8 June 1999) or later (the latest versioin is presently available at http://www.opencontent.org/openpub/). Distributions of modified versions of this document is prohibited without the explicit permission of the copyright holder.
Reprinted with permission of Linux Journal.
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