diff options
Diffstat (limited to 'COPYING')
| -rw-r--r-- | COPYING | 59 |
1 files changed, 52 insertions, 7 deletions
@@ -5,12 +5,60 @@ Copyright (C) 2004 Matthias Andree, Eric S. Raymond, Copyright (C) 2005 - 2012 Sunil Shetye Copyright (C) 2005 - 2021 Matthias Andree -If enabled at configure/compile time, the following clause applies: +Some older portions not explicitly mentioned above are copyrighted by +Carl E. Harris, George M. Sipe, Graham Wilson, Matthias Andree and Sunil Shetye. + + +SSL library considerations +~~~~~~~~~~~~~~~~~~~~~~~~~~ +If linking against OpenSSL versions under dual OpenSSL/SSLeay license (f. i. +OpenSSL 1.1.1x and older) is enabled at configure/compile time, the +following clause applies: | This product includes software developed by the OpenSSL Project | for use in the OpenSSL Toolkit. (http://www.openssl.org/) -Some older portions not explicitly mentioned above are copyrighted by -Carl E. Harris, George M. Sipe, Graham Wilson, Matthias Andree and Sunil Shetye. +|Linking fetchmail statically or dynamically with other modules is making +|a combined work based on fetchmail. Thus, the terms and conditions +|of the GNU General Public License cover the whole combination. +| +|In addition, as a special exception, the copyright holders of fetchmail +|give you permission to combine fetchmail with free software programs or +|libraries that are released with code included in the standard release of +|OpenSSL under the OpenSSL or SSLeay license (or modified versions of such +|code, with unchanged license). +| +|You may copy and distribute such a system following the terms of the GNU GPL +|for fetchmail and the licenses of the other code concerned, +|provided that you include the source code of that other code when and as the +|GNU GPL requires distribution of source code. +| +|Note that people who make modified versions of fetchmail are not obligated to +|grant this special exception for their modified versions; it is their choice +|whether to do so. The GNU General Public License gives permission to release +|a modified version without this exception; this exception also makes it +|possible to release a modified version which carries forward this exception. +| +|In short: +Specific permission is granted for the GPLed code in this distribution to +be linked to OpenSSL without invoking GPL clause 2(b). + +Note that this permission applies to OpenSSL, and OpenSSL only. + +The Free Software Foundation asserts that a GPL v2 clause 2b exception is +required even for dynamically linked binaries. See +https://www.gnu.org/licenses/gpl-faq.en.html#GPLStaticVsDynamic + + +If linking against OpenSSL versions licensed under the Apache License version +2.0 (for instance, OpenSSL 3.0.x), note that this library is incompatible with +the GPLv2, so that effectively, distributors need to use the "or any later version" +grant in the GPLv2 and apply the GPLv3 which is considered compatible with the +Apache License 2.0 by the FSF and the ASF. + + +Fetchmail can be linked against wolfSSL, +which is under GNU General Public License v2, or optionally, any later version. +~~~~~~~~~~~~~~~~~~~~~~~~~~ The support for SMB authentication is copyright by Andrew Tridgell and is under GPL version 2 (or any later version). Andrew Tridgell has @@ -47,7 +95,7 @@ Stenberg and also under a liberal license: | MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE AUTHORS AND | CONTRIBUTORS ACCEPT NO RESPONSIBILITY IN ANY CONCEIVABLE MANNER. -The libesmtp/* files functions are (C) by Brian Stafford, see the respective +The libesmtp/* files functions are (C) by Brian Stafford, see the respective file headers for details (LGPL v2.1 or later). The KAME/* files are (C) Copyright (C) 1995, 1996, 1997, and 1998 WIDE @@ -56,9 +104,6 @@ Project, see the respective file headers for details. All other code in the distribution incorporates the copy of GPL version 2 below by reference. -Specific permission is granted for the GPLed code in this distribution to -be linked to OpenSSL without invoking GPL clause 2(b). - ------------------------------------------------------------------------------- GNU GENERAL PUBLIC LICENSE Version 2, June 1991 |