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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) 2007-2015, 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. src/config/geoip is licensed under the following license:
  136. OPEN DATA LICENSE (GeoLite Country and GeoLite City databases)
  137. Copyright (c) 2008 MaxMind, Inc. All Rights Reserved.
  138. All advertising materials and documentation mentioning features or use of
  139. this database must display the following acknowledgment:
  140. "This product includes GeoLite data created by MaxMind, available from
  141. http://maxmind.com/"
  142. Redistribution and use with or without modification, are permitted provided
  143. that the following conditions are met:
  144. 1. Redistributions must retain the above copyright notice, this list of
  145. conditions and the following disclaimer in the documentation and/or other
  146. materials provided with the distribution.
  147. 2. All advertising materials and documentation mentioning features or use of
  148. this database must display the following acknowledgement:
  149. "This product includes GeoLite data created by MaxMind, available from
  150. http://maxmind.com/"
  151. 3. "MaxMind" may not be used to endorse or promote products derived from this
  152. database without specific prior written permission.
  153. THIS DATABASE IS PROVIDED BY MAXMIND, INC ``AS IS'' AND ANY
  154. EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  155. WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  156. DISCLAIMED. IN NO EVENT SHALL MAXMIND BE LIABLE FOR ANY
  157. DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  158. (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  159. LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  160. ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  161. (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  162. DATABASE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  163. ===============================================================================
  164. m4/pc_from_ucontext.m4 is available under the following license. Note that
  165. it is *not* built into the Tor software.
  166. Copyright (c) 2005, Google Inc.
  167. All rights reserved.
  168. Redistribution and use in source and binary forms, with or without
  169. modification, are permitted provided that the following conditions are
  170. met:
  171. * Redistributions of source code must retain the above copyright
  172. notice, this list of conditions and the following disclaimer.
  173. * Redistributions in binary form must reproduce the above
  174. copyright notice, this list of conditions and the following disclaimer
  175. in the documentation and/or other materials provided with the
  176. distribution.
  177. * Neither the name of Google Inc. nor the names of its
  178. contributors may be used to endorse or promote products derived from
  179. this software without specific prior written permission.
  180. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  181. "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  182. LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  183. A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  184. OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  185. SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  186. LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  187. DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  188. THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  189. (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  190. OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  191. ===============================================================================
  192. m4/pkg.m4 is available under the following license. Note that
  193. it is *not* built into the Tor software.
  194. pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
  195. serial 1 (pkg-config-0.24)
  196. Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
  197. This program is free software; you can redistribute it and/or modify
  198. it under the terms of the GNU General Public License as published by
  199. the Free Software Foundation; either version 2 of the License, or
  200. (at your option) any later version.
  201. This program is distributed in the hope that it will be useful, but
  202. WITHOUT ANY WARRANTY; without even the implied warranty of
  203. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  204. General Public License for more details.
  205. You should have received a copy of the GNU General Public License
  206. along with this program; if not, write to the Free Software
  207. Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  208. As a special exception to the GNU General Public License, if you
  209. distribute this file as part of a program that contains a
  210. configuration script generated by Autoconf, you may include it under
  211. the same distribution terms that you use for the rest of that program.
  212. ===============================================================================
  213. src/ext/readpassphrase.[ch] are distributed under this license:
  214. Copyright (c) 2000-2002, 2007 Todd C. Miller <Todd.Miller@courtesan.com>
  215. Permission to use, copy, modify, and distribute this software for any
  216. purpose with or without fee is hereby granted, provided that the above
  217. copyright notice and this permission notice appear in all copies.
  218. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  219. WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  220. MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  221. ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  222. WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  223. ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  224. OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  225. Sponsored in part by the Defense Advanced Research Projects
  226. Agency (DARPA) and Air Force Research Laboratory, Air Force
  227. Materiel Command, USAF, under agreement number F39502-99-1-0512.
  228. ===============================================================================
  229. If you got Tor as a static binary with OpenSSL included, then you should know:
  230. "This product includes software developed by the OpenSSL Project
  231. for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  232. ===============================================================================