<div class="gmail_quote">On Tue, Oct 13, 2009 at 6:38 PM, Bruno Pierri Galvao <span dir="ltr"><<a href="mailto:vendicate@gmail.com">vendicate@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
If my code modifications have bugs then that is a major security risk so I would have to keep my code modifications closed under a company copyright license. How can I do this? I was talking to a friend and he said that there is a fine line, one can add code in a way that does not affect the GPL code and therefore does not have to be filed under that license. Would you know of such a way?<div>
<div><br></div></div></blockquote><div><br></div><div>If the bugs are there, then a copyright is not going to keep your data secure.</div><div><br></div><div>If you are using code that was licensed to you under any license, then you don't have a copyright on it. And the modifications you make to it do not make it a new piece of code that you have a copyright to. </div>
<div><br></div><div>But based on the nature of your, I would highly recommend you look into the basics of how copyright and licensing works.</div><div><br></div><div>Mike</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div><div></div><div>-thanks</div><div>bruno</div><div><br></div><div><div class="gmail_quote"><div><div></div><div class="h5">On Tue, Oct 13, 2009 at 6:01 PM, Yaakov Nemoy <span dir="ltr"><<a href="mailto:loupgaroublond@gmail.com" target="_blank">loupgaroublond@gmail.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div></div><div class="h5">2009/10/13 Bruno Pierri Galvao <<a href="mailto:vendicate@gmail.com" target="_blank">vendicate@gmail.com</a>>:<div>
<div></div><div><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
If I would like to start an online business and not reinvent the wheel, then<br>
could I use a GPL Licensed work with my own added modifications?<br>
<br>
For example, if I think I can create a better version of eBay and there is a<br>
GPL licensed eBay look-alike script. Could I take this script, add<br>
modifications and start a business? Of course the code would be unseen to<br>
the public for security reasons but if one were to investigate the code then<br>
they would see that we have left the GNU GPL copyrights in the code and<br>
copyrighted our modifications.<br>
I am confused.<br>
</blockquote>
<br></div></div>
The simple answer is yes. The GPL covers the copying and redistribution of the binaries and/or the source code. It does not cover use of the software, which is more or less how web applications and other services are looked at. If your business model included selling this code to other parties, you would have to include the source code.<br>
<br>
The better question though is how do you want to interact with the upstream? There's a good chance you'll find a bug in the original project that you will want to fix. Some bugs will affect your add on code, but some bug fixes might be useful to anyone who uses the original GPL code. Sending the fixes to the upstream developers will help you build a better relationship with the upstream people. They may be sympathetic to your goals too. In the end, when they also make fixes, you'll be able to benefit from it. There are alot of benefits to doing this.<br>
<br>
(This is assuming there is an active upstream, of course. But it's just something to think about before you do business with GPL software. There are good ways to do it, and there are really awesome ways to do it.)<br>
<br>
Best of luck with your business venture.<br><font color="#888888">
<br>
-Yaakov<br>
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