Changeset 1770 in MondoRescue for branches/stable/mindi-busybox/docs/busybox.net/license.html
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- Nov 6, 2007, 11:01:53 AM (16 years ago)
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branches/stable/mindi-busybox/docs/busybox.net/license.html
r821 r1770 2 2 3 3 <p> 4 <h3>BusyBox is licensed under the GNU General Public License </h3>4 <h3>BusyBox is licensed under the GNU General Public License, version 2</h3> 5 5 6 6 <p>BusyBox is licensed under <a href="http://www.gnu.org/licenses/gpl.html#SEC1">the 7 GNU General Public License</a> version 2 or later, which is generally 8 abbreviated as the GPL. (This is the same license the Linux kernel is under, 9 so you may be somewhat familiar with it by now.)</p> 7 GNU General Public License</a> version 2, which is often abbreviated as GPLv2. 8 (This is the same license the Linux kernel is under, so you may be somewhat 9 familiar with it by now.)</p> 10 11 <p>A complete copy of the license text is included in the file LICENSE in 12 the BusyBox source code.</p> 10 13 11 14 <p><a href="/products.html">Anyone thinking of shipping BusyBox as part of a … … 23 26 license terms still apply to you.) Read the license text for the details.</p> 24 27 28 <h3>A note on GPL versions</h3> 29 30 <p>Version 2 of the GPL is the only version of the GPL which current versions 31 of BusyBox may be distributed under. New code added to the tree is licensed 32 GPL version 2, and the project's license is GPL version 2.</p> 33 34 <p>Older versions of BusyBox (versions 1.2.2 and earlier, up through about svn 35 16112) included variants of the recommended "GPL version 2 or (at your option) 36 later versions" boilerplate permission grant. Ancient versions of BusyBox 37 (before svn 49) did not specify any version at all, and section 9 of GPLv2 38 (the most recent version at the time) says those old versions may be 39 redistributed under any version of GPL (including the obsolete V1). This was 40 conceptually similar to a dual license, except that the different licenses were 41 different versions of the GPL.</p> 42 43 <p>However, BusyBox has apparently always contained chunks of code that were 44 licensed under GPL version 2 only. Examples include applets written by Linus 45 Torvalds (util-linux/mkfs_minix.c and util_linux/mkswap.c) which stated they 46 "may be redistributed as per the Linux copyright" (which Linus clarified in the 47 2.4.0-pre8 release announcement in 2000 was GPLv2 only), and Linux kernel code 48 copied into libbb/loop.c (after Linus's announcement). There are probably 49 more, because all we used to check was that the code was GPL, not which 50 version. (Before the GPLv3 draft proceedings in 2006, it was a purely 51 theoretical issue that didn't come up much.)</p> 52 53 <p>To summarize: every version of BusyBox may be distributed under the terms of 54 GPL version 2. New versions (after 1.2.2) may <b>only</b> be distributed under 55 GPLv2, not under other versions of the GPL. Older versions of BusyBox might 56 (or might not) be distributable under other versions of the GPL. If you 57 want to use a GPL version other than 2, you should start with one of the old 58 versions such as release 1.2.2 or SVN 16112, and do your own homework to 59 identify and remove any code that can't be licensed under the GPL version you 60 want to use. New development is all GPLv2.</p> 61 62 <h3>License enforcement</h3> 63 25 64 <p>BusyBox's copyrights are enforced by the <a 26 href="http://www.softwarefreedom.org">Software Freedom Law Center</a>, which 65 href="http://www.softwarefreedom.org">Software Freedom Law Center</a> 66 (you can contact them at gpl@busybox.net), which 27 67 "accepts primary responsibility for enforcement of US copyrights on the 28 68 software... and coordinates international copyright enforcement efforts for
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