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  1. This file contains the license for Tor,
  2. a free software project to provide anonymity on the Internet.
  3. It also lists the licenses for other components used by Tor.
  4. For more information about Tor, see https://www.torproject.org/.
  5. If you got this file as a part of a larger bundle,
  6. there may be other license terms that you should be aware of.
  7. ===============================================================================
  8. Tor is distributed under this license:
  9. Copyright (c) 2001-2004, Roger Dingledine
  10. Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson
  11. Copyright (c) 2007-2019, The Tor Project, Inc.
  12. Redistribution and use in source and binary forms, with or without
  13. modification, are permitted provided that the following conditions are
  14. met:
  15. * Redistributions of source code must retain the above copyright
  16. notice, this list of conditions and the following disclaimer.
  17. * Redistributions in binary form must reproduce the above
  18. copyright notice, this list of conditions and the following disclaimer
  19. in the documentation and/or other materials provided with the
  20. distribution.
  21. * Neither the names of the copyright owners nor the names of its
  22. contributors may be used to endorse or promote products derived from
  23. this software without specific prior written permission.
  24. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  25. "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  26. LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  27. A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  28. OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  29. SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  30. LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  31. DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  32. THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  33. (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  34. OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35. ===============================================================================
  36. src/ext/strlcat.c and src/ext/strlcpy.c by Todd C. Miller are licensed
  37. under the following license:
  38. * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
  39. * All rights reserved.
  40. *
  41. * Redistribution and use in source and binary forms, with or without
  42. * modification, are permitted provided that the following conditions
  43. * are met:
  44. * 1. Redistributions of source code must retain the above copyright
  45. * notice, this list of conditions and the following disclaimer.
  46. * 2. Redistributions in binary form must reproduce the above copyright
  47. * notice, this list of conditions and the following disclaimer in the
  48. * documentation and/or other materials provided with the distribution.
  49. * 3. The name of the author may not be used to endorse or promote products
  50. * derived from this software without specific prior written permission.
  51. *
  52. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  53. * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
  54. * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
  55. * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  56. * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  57. * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  58. * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  59. * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  60. * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  61. * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  62. ===============================================================================
  63. src/ext/tor_queue.h is licensed under the following license:
  64. * Copyright (c) 1991, 1993
  65. * The Regents of the University of California. All rights reserved.
  66. *
  67. * Redistribution and use in source and binary forms, with or without
  68. * modification, are permitted provided that the following conditions
  69. * are met:
  70. * 1. Redistributions of source code must retain the above copyright
  71. * notice, this list of conditions and the following disclaimer.
  72. * 2. Redistributions in binary form must reproduce the above copyright
  73. * notice, this list of conditions and the following disclaimer in the
  74. * documentation and/or other materials provided with the distribution.
  75. * 3. Neither the name of the University nor the names of its contributors
  76. * may be used to endorse or promote products derived from this software
  77. * without specific prior written permission.
  78. *
  79. * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  80. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  81. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  82. * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  83. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  84. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  85. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  86. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  87. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  88. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  89. * SUCH DAMAGE.
  90. ===============================================================================
  91. src/ext/csiphash.c is licensed under the following license:
  92. Copyright (c) 2013 Marek Majkowski <marek@popcount.org>
  93. Permission is hereby granted, free of charge, to any person obtaining a copy
  94. of this software and associated documentation files (the "Software"), to deal
  95. in the Software without restriction, including without limitation the rights
  96. to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  97. copies of the Software, and to permit persons to whom the Software is
  98. furnished to do so, subject to the following conditions:
  99. The above copyright notice and this permission notice shall be included in
  100. all copies or substantial portions of the Software.
  101. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  102. IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  103. FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  104. AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  105. LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  106. OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  107. THE SOFTWARE.
  108. ===============================================================================
  109. Trunnel is distributed under this license:
  110. Copyright 2014 The Tor Project, Inc.
  111. Redistribution and use in source and binary forms, with or without
  112. modification, are permitted provided that the following conditions are
  113. met:
  114. * Redistributions of source code must retain the above copyright
  115. notice, this list of conditions and the following disclaimer.
  116. * Redistributions in binary form must reproduce the above
  117. copyright notice, this list of conditions and the following disclaimer
  118. in the documentation and/or other materials provided with the
  119. distribution.
  120. * Neither the names of the copyright owners nor the names of its
  121. contributors may be used to endorse or promote products derived from
  122. this software without specific prior written permission.
  123. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  124. "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  125. LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  126. A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  127. OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  128. SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  129. LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  130. DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  131. THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  132. (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  133. OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  134. ===============================================================================
  135. getdelim.c is distributed under this license:
  136. Copyright (c) 2011 The NetBSD Foundation, Inc.
  137. All rights reserved.
  138. This code is derived from software contributed to The NetBSD Foundation
  139. by Christos Zoulas.
  140. Redistribution and use in source and binary forms, with or without
  141. modification, are permitted provided that the following conditions
  142. are met:
  143. 1. Redistributions of source code must retain the above copyright
  144. notice, this list of conditions and the following disclaimer.
  145. 2. Redistributions in binary form must reproduce the above copyright
  146. notice, this list of conditions and the following disclaimer in the
  147. documentation and/or other materials provided with the distribution.
  148. THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  149. ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  150. TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  151. PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  152. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  153. CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  154. SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  155. INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  156. CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  157. ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  158. POSSIBILITY OF SUCH DAMAGE.
  159. ===============================================================================
  160. src/config/geoip is licensed under the following license:
  161. OPEN DATA LICENSE (GeoLite Country and GeoLite City databases)
  162. Copyright (c) 2008 MaxMind, Inc. All Rights Reserved.
  163. All advertising materials and documentation mentioning features or use of
  164. this database must display the following acknowledgment:
  165. "This product includes GeoLite data created by MaxMind, available from
  166. http://maxmind.com/"
  167. Redistribution and use with or without modification, are permitted provided
  168. that the following conditions are met:
  169. 1. Redistributions must retain the above copyright notice, this list of
  170. conditions and the following disclaimer in the documentation and/or other
  171. materials provided with the distribution.
  172. 2. All advertising materials and documentation mentioning features or use of
  173. this database must display the following acknowledgement:
  174. "This product includes GeoLite data created by MaxMind, available from
  175. http://maxmind.com/"
  176. 3. "MaxMind" may not be used to endorse or promote products derived from this
  177. database without specific prior written permission.
  178. THIS DATABASE IS PROVIDED BY MAXMIND, INC ``AS IS'' AND ANY
  179. EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  180. WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  181. DISCLAIMED. IN NO EVENT SHALL MAXMIND BE LIABLE FOR ANY
  182. DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  183. (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  184. LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  185. ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  186. (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  187. DATABASE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  188. ===============================================================================
  189. m4/pc_from_ucontext.m4 is available under the following license. Note that
  190. it is *not* built into the Tor software.
  191. Copyright (c) 2005, Google Inc.
  192. All rights reserved.
  193. Redistribution and use in source and binary forms, with or without
  194. modification, are permitted provided that the following conditions are
  195. met:
  196. * Redistributions of source code must retain the above copyright
  197. notice, this list of conditions and the following disclaimer.
  198. * Redistributions in binary form must reproduce the above
  199. copyright notice, this list of conditions and the following disclaimer
  200. in the documentation and/or other materials provided with the
  201. distribution.
  202. * Neither the name of Google Inc. nor the names of its
  203. contributors may be used to endorse or promote products derived from
  204. this software without specific prior written permission.
  205. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  206. "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  207. LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  208. A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  209. OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  210. SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  211. LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  212. DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  213. THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  214. (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  215. OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  216. ===============================================================================
  217. m4/pkg.m4 is available under the following license. Note that
  218. it is *not* built into the Tor software.
  219. pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
  220. serial 1 (pkg-config-0.24)
  221. Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
  222. This program is free software; you can redistribute it and/or modify
  223. it under the terms of the GNU General Public License as published by
  224. the Free Software Foundation; either version 2 of the License, or
  225. (at your option) any later version.
  226. This program is distributed in the hope that it will be useful, but
  227. WITHOUT ANY WARRANTY; without even the implied warranty of
  228. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  229. General Public License for more details.
  230. You should have received a copy of the GNU General Public License
  231. along with this program; if not, write to the Free Software
  232. Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  233. As a special exception to the GNU General Public License, if you
  234. distribute this file as part of a program that contains a
  235. configuration script generated by Autoconf, you may include it under
  236. the same distribution terms that you use for the rest of that program.
  237. ===============================================================================
  238. src/ext/readpassphrase.[ch] are distributed under this license:
  239. Copyright (c) 2000-2002, 2007 Todd C. Miller <Todd.Miller@courtesan.com>
  240. Permission to use, copy, modify, and distribute this software for any
  241. purpose with or without fee is hereby granted, provided that the above
  242. copyright notice and this permission notice appear in all copies.
  243. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  244. WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  245. MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  246. ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  247. WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  248. ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  249. OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  250. Sponsored in part by the Defense Advanced Research Projects
  251. Agency (DARPA) and Air Force Research Laboratory, Air Force
  252. Materiel Command, USAF, under agreement number F39502-99-1-0512.
  253. ===============================================================================
  254. src/ext/mulodi4.c is distributed under this license:
  255. =========================================================================
  256. compiler_rt License
  257. =========================================================================
  258. The compiler_rt library is dual licensed under both the
  259. University of Illinois "BSD-Like" license and the MIT license.
  260. As a user of this code you may choose to use it under either
  261. license. As a contributor, you agree to allow your code to be
  262. used under both.
  263. Full text of the relevant licenses is included below.
  264. =========================================================================
  265. University of Illinois/NCSA
  266. Open Source License
  267. Copyright (c) 2009-2016 by the contributors listed in CREDITS.TXT
  268. All rights reserved.
  269. Developed by:
  270. LLVM Team
  271. University of Illinois at Urbana-Champaign
  272. http://llvm.org
  273. Permission is hereby granted, free of charge, to any person
  274. obtaining a copy of this software and associated documentation
  275. files (the "Software"), to deal with the Software without
  276. restriction, including without limitation the rights to use,
  277. copy, modify, merge, publish, distribute, sublicense, and/or sell
  278. copies of the Software, and to permit persons to whom the
  279. Software is furnished to do so, subject to the following
  280. conditions:
  281. * Redistributions of source code must retain the above
  282. copyright notice, this list of conditions and the following
  283. disclaimers.
  284. * Redistributions in binary form must reproduce the above
  285. copyright notice, this list of conditions and the following
  286. disclaimers in the documentation and/or other materials
  287. provided with the distribution.
  288. * Neither the names of the LLVM Team, University of Illinois
  289. at Urbana-Champaign, nor the names of its contributors may
  290. be used to endorse or promote products derived from this
  291. Software without specific prior written permission.
  292. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  293. EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  294. OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  295. NONINFRINGEMENT. IN NO EVENT SHALL THE CONTRIBUTORS OR COPYRIGHT
  296. HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  297. WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  298. FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  299. OTHER DEALINGS WITH THE SOFTWARE.
  300. =========================================================================
  301. Copyright (c) 2009-2015 by the contributors listed in CREDITS.TXT
  302. Permission is hereby granted, free of charge, to any person
  303. obtaining a copy of this software and associated documentation
  304. files (the "Software"), to deal in the Software without
  305. restriction, including without limitation the rights to use,
  306. copy, modify, merge, publish, distribute, sublicense, and/or sell
  307. copies of the Software, and to permit persons to whom the
  308. Software is furnished to do so, subject to the following
  309. conditions:
  310. The above copyright notice and this permission notice shall be
  311. included in all copies or substantial portions of the Software.
  312. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  313. EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  314. OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  315. NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  316. HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  317. WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  318. FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  319. OTHER DEALINGS IN THE SOFTWARE.
  320. =========================================================================
  321. Copyrights and Licenses for Third Party Software Distributed with LLVM:
  322. =========================================================================
  323. The LLVM software contains code written by third parties. Such
  324. software will have its own individual LICENSE.TXT file in the
  325. directory in which it appears. This file will describe the
  326. copyrights, license, and restrictions which apply to that code.
  327. The disclaimer of warranty in the University of Illinois Open
  328. Source License applies to all code in the LLVM Distribution, and
  329. nothing in any of the other licenses gives permission to use the
  330. names of the LLVM Team or the University of Illinois to endorse
  331. or promote products derived from this Software.
  332. ===============================================================================
  333. If you got Tor as a static binary with OpenSSL included, then you should know:
  334. "This product includes software developed by the OpenSSL Project
  335. for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  336. ===============================================================================