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  1. Libwebsockets and included programs are provided under the terms of the GNU
  2. Library General Public License (LGPL) 2.1, with the following exceptions:
  3. 1) Any reference, whether in these modifications or in the GNU
  4. Library General Public License 2.1, to this License, these terms, the
  5. GNU Lesser Public License, GNU Library General Public License, LGPL, or
  6. any similar reference shall refer to the GNU Library General Public
  7. License 2.1 as modified by these paragraphs 1) through 4).
  8. 2) Static linking of programs with the libwebsockets library does not
  9. constitute a derivative work and does not require the author to provide
  10. source code for the program, use the shared libwebsockets libraries, or
  11. link their program against a user-supplied version of libwebsockets.
  12. If you link the program to a modified version of libwebsockets, then the
  13. changes to libwebsockets must be provided under the terms of the LGPL in
  14. sections 1, 2, and 4.
  15. 3) You do not have to provide a copy of the libwebsockets license with
  16. programs that are linked to the libwebsockets library, nor do you have to
  17. identify the libwebsockets license in your program or documentation as
  18. required by section 6 of the LGPL.
  19. However, programs must still identify their use of libwebsockets. The
  20. following example statement can be included in user documentation to
  21. satisfy this requirement:
  22. "[program] is based in part on the work of the libwebsockets project
  23. (https://libwebsockets.org)"
  24. 4) Some sources included have their own, more liberal licenses, or options
  25. to get original sources with the liberal terms.
  26. Original liberal license retained
  27. - lib/sha-1.c - 3-clause BSD license retained, link to original
  28. - win32port/zlib - ZLIB license (see zlib.h)
  29. Relicensed to libwebsocket license
  30. - lib/base64-decode.c - relicensed to LGPL2.1+SLE, link to original
  31. - lib/daemonize.c - relicensed from Public Domain to LGPL2.1+SLE,
  32. link to original Public Domain version
  33. Public Domain (CC-zero) to simplify reuse
  34. - test-server/*.c
  35. - test-server/*.h
  36. - lwsws/*
  37. ------ end of exceptions
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  435. Copyright (C) <year> <name of author>
  436. This library is free software; you can redistribute it and/or
  437. modify it under the terms of the GNU Lesser General Public
  438. License as published by the Free Software Foundation; either
  439. version 2.1 of the License, or (at your option) any later version.
  440. This library is distributed in the hope that it will be useful,
  441. but WITHOUT ANY WARRANTY; without even the implied warranty of
  442. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  443. Lesser General Public License for more details.
  444. You should have received a copy of the GNU Lesser General Public
  445. License along with this library; if not, write to the Free Software
  446. Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  447. Also add information on how to contact you by electronic and paper mail.
  448. You should also get your employer (if you work as a programmer) or your
  449. school, if any, to sign a "copyright disclaimer" for the library, if
  450. necessary. Here is a sample; alter the names:
  451. Yoyodyne, Inc., hereby disclaims all copyright interest in the
  452. library `Frob' (a library for tweaking knobs) written by James Random Hacker.
  453. <signature of Ty Coon>, 1 April 1990
  454. Ty Coon, President of Vice
  455. That's all there is to it!