1 This file contains the license for Tor,
2 a free software project to provide anonymity on the Internet.
4 It also lists the licenses for other components used by Tor.
6 For more information about Tor, see https://www.torproject.org/.
8 If you got this file as a part of a larger bundle,
9 there may be other license terms that you should be aware of.
11 ===============================================================================
12 Tor is distributed under this license:
14 Copyright (c) 2001-2004, Roger Dingledine
15 Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson
16 Copyright (c) 2007-2019, The Tor Project, Inc.
18 Redistribution and use in source and binary forms, with or without
19 modification, are permitted provided that the following conditions are
22 * Redistributions of source code must retain the above copyright
23 notice, this list of conditions and the following disclaimer.
25 * Redistributions in binary form must reproduce the above
26 copyright notice, this list of conditions and the following disclaimer
27 in the documentation and/or other materials provided with the
30 * Neither the names of the copyright owners nor the names of its
31 contributors may be used to endorse or promote products derived from
32 this software without specific prior written permission.
34 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
35 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
36 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
37 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
38 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
39 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
40 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
41 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
42 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
43 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
44 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
45 ===============================================================================
46 src/ext/strlcat.c and src/ext/strlcpy.c by Todd C. Miller are licensed
47 under the following license:
49 * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
50 * All rights reserved.
52 * Redistribution and use in source and binary forms, with or without
53 * modification, are permitted provided that the following conditions
55 * 1. Redistributions of source code must retain the above copyright
56 * notice, this list of conditions and the following disclaimer.
57 * 2. Redistributions in binary form must reproduce the above copyright
58 * notice, this list of conditions and the following disclaimer in the
59 * documentation and/or other materials provided with the distribution.
60 * 3. The name of the author may not be used to endorse or promote products
61 * derived from this software without specific prior written permission.
63 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
64 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
65 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
66 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
67 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
68 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
69 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
70 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
71 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
72 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
73 ===============================================================================
74 src/ext/tor_queue.h is licensed under the following license:
76 * Copyright (c) 1991, 1993
77 * The Regents of the University of California. All rights reserved.
79 * Redistribution and use in source and binary forms, with or without
80 * modification, are permitted provided that the following conditions
82 * 1. Redistributions of source code must retain the above copyright
83 * notice, this list of conditions and the following disclaimer.
84 * 2. Redistributions in binary form must reproduce the above copyright
85 * notice, this list of conditions and the following disclaimer in the
86 * documentation and/or other materials provided with the distribution.
87 * 3. Neither the name of the University nor the names of its contributors
88 * may be used to endorse or promote products derived from this software
89 * without specific prior written permission.
91 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
92 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
93 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
94 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
95 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
96 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
97 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
98 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
99 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
100 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
103 ===============================================================================
104 src/ext/csiphash.c is licensed under the following license:
106 Copyright (c) 2013 Marek Majkowski <marek@popcount.org>
108 Permission is hereby granted, free of charge, to any person obtaining a copy
109 of this software and associated documentation files (the "Software"), to deal
110 in the Software without restriction, including without limitation the rights
111 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
112 copies of the Software, and to permit persons to whom the Software is
113 furnished to do so, subject to the following conditions:
115 The above copyright notice and this permission notice shall be included in
116 all copies or substantial portions of the Software.
118 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
119 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
120 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
121 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
122 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
123 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
125 ===============================================================================
126 Trunnel is distributed under this license:
128 Copyright 2014 The Tor Project, Inc.
130 Redistribution and use in source and binary forms, with or without
131 modification, are permitted provided that the following conditions are
134 * Redistributions of source code must retain the above copyright
135 notice, this list of conditions and the following disclaimer.
137 * Redistributions in binary form must reproduce the above
138 copyright notice, this list of conditions and the following disclaimer
139 in the documentation and/or other materials provided with the
142 * Neither the names of the copyright owners nor the names of its
143 contributors may be used to endorse or promote products derived from
144 this software without specific prior written permission.
146 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
147 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
148 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
149 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
150 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
151 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
152 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
153 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
154 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
155 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
156 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
158 ===============================================================================
159 getdelim.c is distributed under this license:
161 Copyright (c) 2011 The NetBSD Foundation, Inc.
164 This code is derived from software contributed to The NetBSD Foundation
167 Redistribution and use in source and binary forms, with or without
168 modification, are permitted provided that the following conditions
170 1. Redistributions of source code must retain the above copyright
171 notice, this list of conditions and the following disclaimer.
172 2. Redistributions in binary form must reproduce the above copyright
173 notice, this list of conditions and the following disclaimer in the
174 documentation and/or other materials provided with the distribution.
176 THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
177 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
178 TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
179 PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
180 BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
181 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
182 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
183 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
184 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
185 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
186 POSSIBILITY OF SUCH DAMAGE.
188 ===============================================================================
189 src/config/geoip and src/config/geoip6:
191 These files are based on the IPFire Location Database. For more
192 information, see https://location.ipfire.org/.
194 The data is distributed under a creative commons "BY-SA 4.0" license.
196 Find the full license terms at:
197 https://creativecommons.org/licenses/by-sa/4.0/
199 ===============================================================================
200 m4/pc_from_ucontext.m4 is available under the following license. Note that
201 it is *not* built into the Tor software.
203 Copyright (c) 2005, Google Inc.
206 Redistribution and use in source and binary forms, with or without
207 modification, are permitted provided that the following conditions are
210 * Redistributions of source code must retain the above copyright
211 notice, this list of conditions and the following disclaimer.
212 * Redistributions in binary form must reproduce the above
213 copyright notice, this list of conditions and the following disclaimer
214 in the documentation and/or other materials provided with the
216 * Neither the name of Google Inc. nor the names of its
217 contributors may be used to endorse or promote products derived from
218 this software without specific prior written permission.
220 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
221 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
222 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
223 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
224 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
225 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
226 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
227 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
228 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
229 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
230 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
232 ===============================================================================
233 m4/pkg.m4 is available under the following license. Note that
234 it is *not* built into the Tor software.
236 pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
237 serial 1 (pkg-config-0.24)
239 Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
241 This program is free software; you can redistribute it and/or modify
242 it under the terms of the GNU General Public License as published by
243 the Free Software Foundation; either version 2 of the License, or
244 (at your option) any later version.
246 This program is distributed in the hope that it will be useful, but
247 WITHOUT ANY WARRANTY; without even the implied warranty of
248 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
249 General Public License for more details.
251 You should have received a copy of the GNU General Public License
252 along with this program; if not, write to the Free Software
253 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
255 As a special exception to the GNU General Public License, if you
256 distribute this file as part of a program that contains a
257 configuration script generated by Autoconf, you may include it under
258 the same distribution terms that you use for the rest of that program.
259 ===============================================================================
260 src/ext/readpassphrase.[ch] are distributed under this license:
262 Copyright (c) 2000-2002, 2007 Todd C. Miller <Todd.Miller@courtesan.com>
264 Permission to use, copy, modify, and distribute this software for any
265 purpose with or without fee is hereby granted, provided that the above
266 copyright notice and this permission notice appear in all copies.
268 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
269 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
270 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
271 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
272 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
273 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
274 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
276 Sponsored in part by the Defense Advanced Research Projects
277 Agency (DARPA) and Air Force Research Laboratory, Air Force
278 Materiel Command, USAF, under agreement number F39502-99-1-0512.
280 ===============================================================================
281 src/ext/mulodi4.c is distributed under this license:
283 =========================================================================
285 =========================================================================
287 The compiler_rt library is dual licensed under both the
288 University of Illinois "BSD-Like" license and the MIT license.
289 As a user of this code you may choose to use it under either
290 license. As a contributor, you agree to allow your code to be
293 Full text of the relevant licenses is included below.
295 =========================================================================
297 University of Illinois/NCSA
300 Copyright (c) 2009-2016 by the contributors listed in CREDITS.TXT
308 University of Illinois at Urbana-Champaign
312 Permission is hereby granted, free of charge, to any person
313 obtaining a copy of this software and associated documentation
314 files (the "Software"), to deal with the Software without
315 restriction, including without limitation the rights to use,
316 copy, modify, merge, publish, distribute, sublicense, and/or sell
317 copies of the Software, and to permit persons to whom the
318 Software is furnished to do so, subject to the following
321 * Redistributions of source code must retain the above
322 copyright notice, this list of conditions and the following
325 * Redistributions in binary form must reproduce the above
326 copyright notice, this list of conditions and the following
327 disclaimers in the documentation and/or other materials
328 provided with the distribution.
330 * Neither the names of the LLVM Team, University of Illinois
331 at Urbana-Champaign, nor the names of its contributors may
332 be used to endorse or promote products derived from this
333 Software without specific prior written permission.
335 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
336 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
337 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
338 NONINFRINGEMENT. IN NO EVENT SHALL THE CONTRIBUTORS OR COPYRIGHT
339 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
340 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
341 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
342 OTHER DEALINGS WITH THE SOFTWARE.
344 =========================================================================
346 Copyright (c) 2009-2015 by the contributors listed in CREDITS.TXT
348 Permission is hereby granted, free of charge, to any person
349 obtaining a copy of this software and associated documentation
350 files (the "Software"), to deal in the Software without
351 restriction, including without limitation the rights to use,
352 copy, modify, merge, publish, distribute, sublicense, and/or sell
353 copies of the Software, and to permit persons to whom the
354 Software is furnished to do so, subject to the following
357 The above copyright notice and this permission notice shall be
358 included in all copies or substantial portions of the Software.
360 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
361 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
362 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
363 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
364 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
365 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
366 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
367 OTHER DEALINGS IN THE SOFTWARE.
369 =========================================================================
370 Copyrights and Licenses for Third Party Software Distributed with LLVM:
371 =========================================================================
373 The LLVM software contains code written by third parties. Such
374 software will have its own individual LICENSE.TXT file in the
375 directory in which it appears. This file will describe the
376 copyrights, license, and restrictions which apply to that code.
378 The disclaimer of warranty in the University of Illinois Open
379 Source License applies to all code in the LLVM Distribution, and
380 nothing in any of the other licenses gives permission to use the
381 names of the LLVM Team or the University of Illinois to endorse
382 or promote products derived from this Software.
384 ===============================================================================
385 If you got Tor as a static binary with OpenSSL included, then you should know:
386 "This product includes software developed by the OpenSSL Project
387 for use in the OpenSSL Toolkit (http://www.openssl.org/)"
388 ===============================================================================