Open62541, version 1.3.11

Open62541 is an open source implementation of the OPC UA protocol.

Used in the Qt OPC UA module to build the backend. Pass -no-open62541 or -system-open62541 to avoid.

The sources can be found in qtopcua/src/3rdparty/open62541.

Project Homepage, upstream version: 1.3.11

 The authors of open62541 are (in alphabetical order)

 Bauer, Maximilian
 Ebrahimi, Reza <reza.ebrahimi.dev (at) gmail.com>
 Graube, Markus <markus.graube (at) tu-dresden.de>
 Gruener, Sten <s.gruener (at) plt.rwth-aachen.de>
 Iatrou, Chris Paul <chris_paul.iatrou (at) tu-dresden.de>
 Jeromin, Holger
 Palm, Florian <f.palm (at) plt.rwth-aachen.de>
 Pfrommer, Julius <julius.pfrommer (at) iosb.fraunhofer.edu>
 Profanter, Stefan <profanter (at) fortiss.org>
 Stalder, Thomas <t.stalder (at) bluetimeconcept.ch>
 Urbas, Leon <leon.urbas (at) tu-dresden.de>

Mozilla Public License 2.0 and Creative Commons Zero v1.0 Universal and Creative Commons Attribution Share Alike 4.0 International and BSD 3-Clause "New" or "Revised" License and Apache License 2.0 and MIT License.

 Mozilla Public License Version 2.0
 ==================================

 1. Definitions
 --------------

 1.1. "Contributor"
     means each individual or legal entity that creates, contributes to
     the creation of, or owns Covered Software.

 1.2. "Contributor Version"
     means the combination of the Contributions of others (if any) used
     by a Contributor and that particular Contributor's Contribution.

 1.3. "Contribution"
     means Covered Software of a particular Contributor.

 1.4. "Covered Software"
     means Source Code Form to which the initial Contributor has attached
     the notice in Exhibit A, the Executable Form of such Source Code
     Form, and Modifications of such Source Code Form, in each case
     including portions thereof.

 1.5. "Incompatible With Secondary Licenses"
     means

     (a) that the initial Contributor has attached the notice described
         in Exhibit B to the Covered Software; or

     (b) that the Covered Software was made available under the terms of
         version 1.1 or earlier of the License, but not also under the
         terms of a Secondary License.

 1.6. "Executable Form"
     means any form of the work other than Source Code Form.

 1.7. "Larger Work"
     means a work that combines Covered Software with other material, in
     a separate file or files, that is not Covered Software.

 1.8. "License"
     means this document.

 1.9. "Licensable"
     means having the right to grant, to the maximum extent possible,
     whether at the time of the initial grant or subsequently, any and
     all of the rights conveyed by this License.

 1.10. "Modifications"
     means any of the following:

     (a) any file in Source Code Form that results from an addition to,
         deletion from, or modification of the contents of Covered
         Software; or

     (b) any new file in Source Code Form that contains any Covered
         Software.

 1.11. "Patent Claims" of a Contributor
     means any patent claim(s), including without limitation, method,
     process, and apparatus claims, in any patent Licensable by such
     Contributor that would be infringed, but for the grant of the
     License, by the making, using, selling, offering for sale, having
     made, import, or transfer of either its Contributions or its
     Contributor Version.

 1.12. "Secondary License"
     means either the GNU General Public License, Version 2.0, the GNU
     Lesser General Public License, Version 2.1, the GNU Affero General
     Public License, Version 3.0, or any later versions of those
     licenses.

 1.13. "Source Code Form"
     means the form of the work preferred for making modifications.

 1.14. "You" (or "Your")
     means an individual or a legal entity exercising rights under this
     License. For legal entities, "You" includes any entity that
     controls, is controlled by, or is under common control with You. For
     purposes of this definition, "control" means (a) the power, direct
     or indirect, to cause the direction or management of such entity,
     whether by contract or otherwise, or (b) ownership of more than
     fifty percent (50%) of the outstanding shares or beneficial
     ownership of such entity.

 2. License Grants and Conditions
 --------------------------------

 2.1. Grants

 Each Contributor hereby grants You a world-wide, royalty-free,
 non-exclusive license:

 (a) under intellectual property rights (other than patent or trademark)
     Licensable by such Contributor to use, reproduce, make available,
     modify, display, perform, distribute, and otherwise exploit its
     Contributions, either on an unmodified basis, with Modifications, or
     as part of a Larger Work; and

 (b) under Patent Claims of such Contributor to make, use, sell, offer
     for sale, have made, import, and otherwise transfer either its
     Contributions or its Contributor Version.

 2.2. Effective Date

 The licenses granted in Section 2.1 with respect to any Contribution
 become effective for each Contribution on the date the Contributor first
 distributes such Contribution.

 2.3. Limitations on Grant Scope

 The licenses granted in this Section 2 are the only rights granted under
 this License. No additional rights or licenses will be implied from the
 distribution or licensing of Covered Software under this License.
 Notwithstanding Section 2.1(b) above, no patent license is granted by a
 Contributor:

 (a) for any code that a Contributor has removed from Covered Software;
     or

 (b) for infringements caused by: (i) Your and any other third party's
     modifications of Covered Software, or (ii) the combination of its
     Contributions with other software (except as part of its Contributor
     Version); or

 (c) under Patent Claims infringed by Covered Software in the absence of
     its Contributions.

 This License does not grant any rights in the trademarks, service marks,
 or logos of any Contributor (except as may be necessary to comply with
 the notice requirements in Section 3.4).

 2.4. Subsequent Licenses

 No Contributor makes additional grants as a result of Your choice to
 distribute the Covered Software under a subsequent version of this
 License (see Section 10.2) or under the terms of a Secondary License (if
 permitted under the terms of Section 3.3).

 2.5. Representation

 Each Contributor represents that the Contributor believes its
 Contributions are its original creation(s) or it has sufficient rights
 to grant the rights to its Contributions conveyed by this License.

 2.6. Fair Use

 This License is not intended to limit any rights You have under
 applicable copyright doctrines of fair use, fair dealing, or other
 equivalents.

 2.7. Conditions

 Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
 in Section 2.1.

 3. Responsibilities
 -------------------

 3.1. Distribution of Source Form

 All distribution of Covered Software in Source Code Form, including any
 Modifications that You create or to which You contribute, must be under
 the terms of this License. You must inform recipients that the Source
 Code Form of the Covered Software is governed by the terms of this
 License, and how they can obtain a copy of this License. You may not
 attempt to alter or restrict the recipients' rights in the Source Code
 Form.

 3.2. Distribution of Executable Form

 If You distribute Covered Software in Executable Form then:

 (a) such Covered Software must also be made available in Source Code
     Form, as described in Section 3.1, and You must inform recipients of
     the Executable Form how they can obtain a copy of such Source Code
     Form by reasonable means in a timely manner, at a charge no more
     than the cost of distribution to the recipient; and

 (b) You may distribute such Executable Form under the terms of this
     License, or sublicense it under different terms, provided that the
     license for the Executable Form does not attempt to limit or alter
     the recipients' rights in the Source Code Form under this License.

 3.3. Distribution of a Larger Work

 You may create and distribute a Larger Work under terms of Your choice,
 provided that You also comply with the requirements of this License for
 the Covered Software. If the Larger Work is a combination of Covered
 Software with a work governed by one or more Secondary Licenses, and the
 Covered Software is not Incompatible With Secondary Licenses, this
 License permits You to additionally distribute such Covered Software
 under the terms of such Secondary License(s), so that the recipient of
 the Larger Work may, at their option, further distribute the Covered
 Software under the terms of either this License or such Secondary
 License(s).

 3.4. Notices

 You may not remove or alter the substance of any license notices
 (including copyright notices, patent notices, disclaimers of warranty,
 or limitations of liability) contained within the Source Code Form of
 the Covered Software, except that You may alter any license notices to
 the extent required to remedy known factual inaccuracies.

 3.5. Application of Additional Terms

 You may choose to offer, and to charge a fee for, warranty, support,
 indemnity or liability obligations to one or more recipients of Covered
 Software. However, You may do so only on Your own behalf, and not on
 behalf of any Contributor. You must make it absolutely clear that any
 such warranty, support, indemnity, or liability obligation is offered by
 You alone, and You hereby agree to indemnify every Contributor for any
 liability incurred by such Contributor as a result of warranty, support,
 indemnity or liability terms You offer. You may include additional
 disclaimers of warranty and limitations of liability specific to any
 jurisdiction.

 4. Inability to Comply Due to Statute or Regulation
 ---------------------------------------------------

 If it is impossible for You to comply with any of the terms of this
 License with respect to some or all of the Covered Software due to
 statute, judicial order, or regulation then You must: (a) comply with
 the terms of this License to the maximum extent possible; and (b)
 describe the limitations and the code they affect. Such description must
 be placed in a text file included with all distributions of the Covered
 Software under this License. Except to the extent prohibited by statute
 or regulation, such description must be sufficiently detailed for a
 recipient of ordinary skill to be able to understand it.

 5. Termination
 --------------

 5.1. The rights granted under this License will terminate automatically
 if You fail to comply with any of its terms. However, if You become
 compliant, then the rights granted under this License from a particular
 Contributor are reinstated (a) provisionally, unless and until such
 Contributor explicitly and finally terminates Your grants, and (b) on an
 ongoing basis, if such Contributor fails to notify You of the
 non-compliance by some reasonable means prior to 60 days after You have
 come back into compliance. Moreover, Your grants from a particular
 Contributor are reinstated on an ongoing basis if such Contributor
 notifies You of the non-compliance by some reasonable means, this is the
 first time You have received notice of non-compliance with this License
 from such Contributor, and You become compliant prior to 30 days after
 Your receipt of the notice.

 5.2. If You initiate litigation against any entity by asserting a patent
 infringement claim (excluding declaratory judgment actions,
 counter-claims, and cross-claims) alleging that a Contributor Version
 directly or indirectly infringes any patent, then the rights granted to
 You by any and all Contributors for the Covered Software under Section
 2.1 of this License shall terminate.

 5.3. In the event of termination under Sections 5.1 or 5.2 above, all
 end user license agreements (excluding distributors and resellers) which
 have been validly granted by You or Your distributors under this License
 prior to termination shall survive termination.

 ************************************************************************
 *                                                                      *
 *  6. Disclaimer of Warranty                                           *
 *  -------------------------                                           *
 *                                                                      *
 *  Covered Software is provided under this License on an "as is"       *
 *  basis, without warranty of any kind, either expressed, implied, or  *
 *  statutory, including, without limitation, warranties that the       *
 *  Covered Software is free of defects, merchantable, fit for a        *
 *  particular purpose or non-infringing. The entire risk as to the     *
 *  quality and performance of the Covered Software is with You.        *
 *  Should any Covered Software prove defective in any respect, You     *
 *  (not any Contributor) assume the cost of any necessary servicing,   *
 *  repair, or correction. This disclaimer of warranty constitutes an   *
 *  essential part of this License. No use of any Covered Software is   *
 *  authorized under this License except under this disclaimer.         *
 *                                                                      *
 ************************************************************************

 ************************************************************************
 *                                                                      *
 *  7. Limitation of Liability                                          *
 *  --------------------------                                          *
 *                                                                      *
 *  Under no circumstances and under no legal theory, whether tort      *
 *  (including negligence), contract, or otherwise, shall any           *
 *  Contributor, or anyone who distributes Covered Software as          *
 *  permitted above, be liable to You for any direct, indirect,         *
 *  special, incidental, or consequential damages of any character      *
 *  including, without limitation, damages for lost profits, loss of    *
 *  goodwill, work stoppage, computer failure or malfunction, or any    *
 *  and all other commercial damages or losses, even if such party      *
 *  shall have been informed of the possibility of such damages. This   *
 *  limitation of liability shall not apply to liability for death or   *
 *  personal injury resulting from such party's negligence to the       *
 *  extent applicable law prohibits such limitation. Some               *
 *  jurisdictions do not allow the exclusion or limitation of           *
 *  incidental or consequential damages, so this exclusion and          *
 *  limitation may not apply to You.                                    *
 *                                                                      *
 ************************************************************************

 8. Litigation
 -------------

 Any litigation relating to this License may be brought only in the
 courts of a jurisdiction where the defendant maintains its principal
 place of business and such litigation shall be governed by laws of that
 jurisdiction, without reference to its conflict-of-law provisions.
 Nothing in this Section shall prevent a party's ability to bring
 cross-claims or counter-claims.

 9. Miscellaneous
 ----------------

 This License represents the complete agreement concerning the subject
 matter hereof. If any provision of this License is held to be
 unenforceable, such provision shall be reformed only to the extent
 necessary to make it enforceable. Any law or regulation which provides
 that the language of a contract shall be construed against the drafter
 shall not be used to construe this License against a Contributor.

 10. Versions of the License
 ---------------------------

 10.1. New Versions

 Mozilla Foundation is the license steward. Except as provided in Section
 10.3, no one other than the license steward has the right to modify or
 publish new versions of this License. Each version will be given a
 distinguishing version number.

 10.2. Effect of New Versions

 You may distribute the Covered Software under the terms of the version
 of the License under which You originally received the Covered Software,
 or under the terms of any subsequent version published by the license
 steward.

 10.3. Modified Versions

 If you create software not governed by this License, and you want to
 create a new license for such software, you may create and use a
 modified version of this License if you rename the license and remove
 any references to the name of the license steward (except to note that
 such modified license differs from this License).

 10.4. Distributing Source Code Form that is Incompatible With Secondary
 Licenses

 If You choose to distribute Source Code Form that is Incompatible With
 Secondary Licenses under the terms of this version of the License, the
 notice described in Exhibit B of this License must be attached.

 Exhibit A - Source Code Form License Notice
 -------------------------------------------

   This Source Code Form is subject to the terms of the Mozilla Public
   License, v. 2.0. If a copy of the MPL was not distributed with this
   file, You can obtain one at http://mozilla.org/MPL/2.0/.

 If it is not possible or desirable to put the notice in a particular
 file, then You may include the notice in a location (such as a LICENSE
 file in a relevant directory) where a recipient would be likely to look
 for such a notice.

 You may add additional accurate notices of copyright ownership.

 Exhibit B - "Incompatible With Secondary Licenses" Notice
 ---------------------------------------------------------

   This Source Code Form is "Incompatible With Secondary Licenses", as
   defined by the Mozilla Public License, v. 2.0.
 Creative Commons CCZero 1.0 Universal

 Statement of Purpose

 The laws of most jurisdictions throughout the world automatically confer
 exclusive Copyright and Related Rights (defined below) upon the creator
 and subsequent owner(s) (each and all, an "owner") of an original work of
 authorship and/or a database (each, a "Work").

 Certain owners wish to permanently relinquish those rights to a Work for
 the purpose of contributing to a commons of creative, cultural and
 scientific works ("Commons") that the public can reliably and without fear
 of later claims of infringement build upon, modify, incorporate in other
 works, reuse and redistribute as freely as possible in any form whatsoever
 and for any purposes, including without limitation commercial purposes.
 These owners may contribute to the Commons to promote the ideal of a free
 culture and the further production of creative, cultural and scientific
 works, or to gain reputation or greater distribution for their Work in
 part through the use and efforts of others.

 For these and/or other purposes and motivations, and without any
 expectation of additional consideration or compensation, the person
 associating CC0 with a Work (the "Affirmer"), to the extent that he or she
 is an owner of Copyright and Related Rights in the Work, voluntarily
 elects to apply CC0 to the Work and publicly distribute the Work under its
 terms, with knowledge of his or her Copyright and Related Rights in the
 Work and the meaning and intended legal effect of CC0 on those rights.

 1. Copyright and Related Rights. A Work made available under CC0 may be
 protected by copyright and related or neighboring rights ("Copyright and
 Related Rights"). Copyright and Related Rights include, but are not
 limited to, the following:

   i. the right to reproduce, adapt, distribute, perform, display,
      communicate, and translate a Work;
  ii. moral rights retained by the original author(s) and/or performer(s);
 iii. publicity and privacy rights pertaining to a person's image or
      likeness depicted in a Work;
  iv. rights protecting against unfair competition in regards to a Work,
      subject to the limitations in paragraph 4(a), below;
   v. rights protecting the extraction, dissemination, use and reuse of data
      in a Work;
  vi. database rights (such as those arising under Directive 96/9/EC of the
      European Parliament and of the Council of 11 March 1996 on the legal
      protection of databases, and under any national implementation
      thereof, including any amended or successor version of such
      directive); and
 vii. other similar, equivalent or corresponding rights throughout the
      world based on applicable law or treaty, and any national
      implementations thereof.

 2. Waiver. To the greatest extent permitted by, but not in contravention
 of, applicable law, Affirmer hereby overtly, fully, permanently,
 irrevocably and unconditionally waives, abandons, and surrenders all of
 Affirmer's Copyright and Related Rights and associated claims and causes
 of action, whether now known or unknown (including existing as well as
 future claims and causes of action), in the Work (i) in all territories
 worldwide, (ii) for the maximum duration provided by applicable law or
 treaty (including future time extensions), (iii) in any current or future
 medium and for any number of copies, and (iv) for any purpose whatsoever,
 including without limitation commercial, advertising or promotional
 purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each
 member of the public at large and to the detriment of Affirmer's heirs and
 successors, fully intending that such Waiver shall not be subject to
 revocation, rescission, cancellation, termination, or any other legal or
 equitable action to disrupt the quiet enjoyment of the Work by the public
 as contemplated by Affirmer's express Statement of Purpose.

 3. Public License Fallback. Should any part of the Waiver for any reason
 be judged legally invalid or ineffective under applicable law, then the
 Waiver shall be preserved to the maximum extent permitted taking into
 account Affirmer's express Statement of Purpose. In addition, to the
 extent the Waiver is so judged Affirmer hereby grants to each affected
 person a royalty-free, non transferable, non sublicensable, non exclusive,
 irrevocable and unconditional license to exercise Affirmer's Copyright and
 Related Rights in the Work (i) in all territories worldwide, (ii) for the
 maximum duration provided by applicable law or treaty (including future
 time extensions), (iii) in any current or future medium and for any number
 of copies, and (iv) for any purpose whatsoever, including without
 limitation commercial, advertising or promotional purposes (the
 "License"). The License shall be deemed effective as of the date CC0 was
 applied by Affirmer to the Work. Should any part of the License for any
 reason be judged legally invalid or ineffective under applicable law, such
 partial invalidity or ineffectiveness shall not invalidate the remainder
 of the License, and in such case Affirmer hereby affirms that he or she
 will not (i) exercise any of his or her remaining Copyright and Related
 Rights in the Work or (ii) assert any associated claims and causes of
 action with respect to the Work, in either case contrary to Affirmer's
 express Statement of Purpose.

 4. Limitations and Disclaimers.

  a. No trademark or patent rights held by Affirmer are waived, abandoned,
     surrendered, licensed or otherwise affected by this document.
  b. Affirmer offers the Work as-is and makes no representations or
     warranties of any kind concerning the Work, express, implied,
     statutory or otherwise, including without limitation warranties of
     title, merchantability, fitness for a particular purpose, non
     infringement, or the absence of latent or other defects, accuracy, or
     the present or absence of errors, whether or not discoverable, all to
     the greatest extent permissible under applicable law.
  c. Affirmer disclaims responsibility for clearing rights of other persons
     that may apply to the Work or any use thereof, including without
     limitation any person's Copyright and Related Rights in the Work.
     Further, Affirmer disclaims responsibility for obtaining any necessary
     consents, permissions or other rights required for any use of the
     Work.
  d. Affirmer understands and acknowledges that Creative Commons is not a
     party to this document and has no duty or obligation with respect to
     this CC0 or use of the Work.
 Attribution-ShareAlike 4.0 International

 =======================================================================

 Creative Commons Corporation ("Creative Commons") is not a law firm and
 does not provide legal services or legal advice. Distribution of
 Creative Commons public licenses does not create a lawyer-client or
 other relationship. Creative Commons makes its licenses and related
 information available on an "as-is" basis. Creative Commons gives no
 warranties regarding its licenses, any material licensed under their
 terms and conditions, or any related information. Creative Commons
 disclaims all liability for damages resulting from their use to the
 fullest extent possible.

 Using Creative Commons Public Licenses

 Creative Commons public licenses provide a standard set of terms and
 conditions that creators and other rights holders may use to share
 original works of authorship and other material subject to copyright
 and certain other rights specified in the public license below. The
 following considerations are for informational purposes only, are not
 exhaustive, and do not form part of our licenses.

      Considerations for licensors: Our public licenses are
      intended for use by those authorized to give the public
      permission to use material in ways otherwise restricted by
      copyright and certain other rights. Our licenses are
      irrevocable. Licensors should read and understand the terms
      and conditions of the license they choose before applying it.
      Licensors should also secure all rights necessary before
      applying our licenses so that the public can reuse the
      material as expected. Licensors should clearly mark any
      material not subject to the license. This includes other CC-
      licensed material, or material used under an exception or
      limitation to copyright. More considerations for licensors:
     wiki.creativecommons.org/Considerations_for_licensors

      Considerations for the public: By using one of our public
      licenses, a licensor grants the public permission to use the
      licensed material under specified terms and conditions. If
      the licensor's permission is not necessary for any reason--for
      example, because of any applicable exception or limitation to
      copyright--then that use is not regulated by the license. Our
      licenses grant only permissions under copyright and certain
      other rights that a licensor has authority to grant. Use of
      the licensed material may still be restricted for other
      reasons, including because others have copyright or other
      rights in the material. A licensor may make special requests,
      such as asking that all changes be marked or described.
      Although not required by our licenses, you are encouraged to
      respect those requests where reasonable. More considerations
      for the public:
     wiki.creativecommons.org/Considerations_for_licensees

 =======================================================================

 Creative Commons Attribution-ShareAlike 4.0 International Public
 License

 By exercising the Licensed Rights (defined below), You accept and agree
 to be bound by the terms and conditions of this Creative Commons
 Attribution-ShareAlike 4.0 International Public License ("Public
 License"). To the extent this Public License may be interpreted as a
 contract, You are granted the Licensed Rights in consideration of Your
 acceptance of these terms and conditions, and the Licensor grants You
 such rights in consideration of benefits the Licensor receives from
 making the Licensed Material available under these terms and
 conditions.


 Section 1 -- Definitions.

   a. Adapted Material means material subject to Copyright and Similar
      Rights that is derived from or based upon the Licensed Material
      and in which the Licensed Material is translated, altered,
      arranged, transformed, or otherwise modified in a manner requiring
      permission under the Copyright and Similar Rights held by the
      Licensor. For purposes of this Public License, where the Licensed
      Material is a musical work, performance, or sound recording,
      Adapted Material is always produced where the Licensed Material is
      synched in timed relation with a moving image.

   b. Adapter's License means the license You apply to Your Copyright
      and Similar Rights in Your contributions to Adapted Material in
      accordance with the terms and conditions of this Public License.

   c. BY-SA Compatible License means a license listed at
      creativecommons.org/compatiblelicenses, approved by Creative
      Commons as essentially the equivalent of this Public License.

   d. Copyright and Similar Rights means copyright and/or similar rights
      closely related to copyright including, without limitation,
      performance, broadcast, sound recording, and Sui Generis Database
      Rights, without regard to how the rights are labeled or
      categorized. For purposes of this Public License, the rights
      specified in Section 2(b)(1)-(2) are not Copyright and Similar
      Rights.

   e. Effective Technological Measures means those measures that, in the
      absence of proper authority, may not be circumvented under laws
      fulfilling obligations under Article 11 of the WIPO Copyright
      Treaty adopted on December 20, 1996, and/or similar international
      agreements.

   f. Exceptions and Limitations means fair use, fair dealing, and/or
      any other exception or limitation to Copyright and Similar Rights
      that applies to Your use of the Licensed Material.

   g. License Elements means the license attributes listed in the name
      of a Creative Commons Public License. The License Elements of this
      Public License are Attribution and ShareAlike.

   h. Licensed Material means the artistic or literary work, database,
      or other material to which the Licensor applied this Public
      License.

   i. Licensed Rights means the rights granted to You subject to the
      terms and conditions of this Public License, which are limited to
      all Copyright and Similar Rights that apply to Your use of the
      Licensed Material and that the Licensor has authority to license.

   j. Licensor means the individual(s) or entity(ies) granting rights
      under this Public License.

   k. Share means to provide material to the public by any means or
      process that requires permission under the Licensed Rights, such
      as reproduction, public display, public performance, distribution,
      dissemination, communication, or importation, and to make material
      available to the public including in ways that members of the
      public may access the material from a place and at a time
      individually chosen by them.

   l. Sui Generis Database Rights means rights other than copyright
      resulting from Directive 96/9/EC of the European Parliament and of
      the Council of 11 March 1996 on the legal protection of databases,
      as amended and/or succeeded, as well as other essentially
      equivalent rights anywhere in the world.

   m. You means the individual or entity exercising the Licensed Rights
      under this Public License. Your has a corresponding meaning.


 Section 2 -- Scope.

   a. License grant.

        1. Subject to the terms and conditions of this Public License,
           the Licensor hereby grants You a worldwide, royalty-free,
           non-sublicensable, non-exclusive, irrevocable license to
           exercise the Licensed Rights in the Licensed Material to:

             a. reproduce and Share the Licensed Material, in whole or
                in part; and

             b. produce, reproduce, and Share Adapted Material.

        2. Exceptions and Limitations. For the avoidance of doubt, where
           Exceptions and Limitations apply to Your use, this Public
           License does not apply, and You do not need to comply with
           its terms and conditions.

        3. Term. The term of this Public License is specified in Section
           6(a).

        4. Media and formats; technical modifications allowed. The
           Licensor authorizes You to exercise the Licensed Rights in
           all media and formats whether now known or hereafter created,
           and to make technical modifications necessary to do so. The
           Licensor waives and/or agrees not to assert any right or
           authority to forbid You from making technical modifications
           necessary to exercise the Licensed Rights, including
           technical modifications necessary to circumvent Effective
           Technological Measures. For purposes of this Public License,
           simply making modifications authorized by this Section 2(a)
           (4) never produces Adapted Material.

        5. Downstream recipients.

             a. Offer from the Licensor -- Licensed Material. Every
                recipient of the Licensed Material automatically
                receives an offer from the Licensor to exercise the
                Licensed Rights under the terms and conditions of this
                Public License.

             b. Additional offer from the Licensor -- Adapted Material.
                Every recipient of Adapted Material from You
                automatically receives an offer from the Licensor to
                exercise the Licensed Rights in the Adapted Material
                under the conditions of the Adapter's License You apply.

             c. No downstream restrictions. You may not offer or impose
                any additional or different terms or conditions on, or
                apply any Effective Technological Measures to, the
                Licensed Material if doing so restricts exercise of the
                Licensed Rights by any recipient of the Licensed
                Material.

        6. No endorsement. Nothing in this Public License constitutes or
           may be construed as permission to assert or imply that You
           are, or that Your use of the Licensed Material is, connected
           with, or sponsored, endorsed, or granted official status by,
           the Licensor or others designated to receive attribution as
           provided in Section 3(a)(1)(A)(i).

   b. Other rights.

        1. Moral rights, such as the right of integrity, are not
           licensed under this Public License, nor are publicity,
           privacy, and/or other similar personality rights; however, to
           the extent possible, the Licensor waives and/or agrees not to
           assert any such rights held by the Licensor to the limited
           extent necessary to allow You to exercise the Licensed
           Rights, but not otherwise.

        2. Patent and trademark rights are not licensed under this
           Public License.

        3. To the extent possible, the Licensor waives any right to
           collect royalties from You for the exercise of the Licensed
           Rights, whether directly or through a collecting society
           under any voluntary or waivable statutory or compulsory
           licensing scheme. In all other cases the Licensor expressly
           reserves any right to collect such royalties.


 Section 3 -- License Conditions.

 Your exercise of the Licensed Rights is expressly made subject to the
 following conditions.

   a. Attribution.

        1. If You Share the Licensed Material (including in modified
           form), You must:

             a. retain the following if it is supplied by the Licensor
                with the Licensed Material:

                  i. identification of the creator(s) of the Licensed
                     Material and any others designated to receive
                     attribution, in any reasonable manner requested by
                     the Licensor (including by pseudonym if
                     designated);

                 ii. a copyright notice;

                iii. a notice that refers to this Public License;

                 iv. a notice that refers to the disclaimer of
                     warranties;

                  v. a URI or hyperlink to the Licensed Material to the
                     extent reasonably practicable;

             b. indicate if You modified the Licensed Material and
                retain an indication of any previous modifications; and

             c. indicate the Licensed Material is licensed under this
                Public License, and include the text of, or the URI or
                hyperlink to, this Public License.

        2. You may satisfy the conditions in Section 3(a)(1) in any
           reasonable manner based on the medium, means, and context in
           which You Share the Licensed Material. For example, it may be
           reasonable to satisfy the conditions by providing a URI or
           hyperlink to a resource that includes the required
           information.

        3. If requested by the Licensor, You must remove any of the
           information required by Section 3(a)(1)(A) to the extent
           reasonably practicable.

   b. ShareAlike.

      In addition to the conditions in Section 3(a), if You Share
      Adapted Material You produce, the following conditions also apply.

        1. The Adapter's License You apply must be a Creative Commons
           license with the same License Elements, this version or
           later, or a BY-SA Compatible License.

        2. You must include the text of, or the URI or hyperlink to, the
           Adapter's License You apply. You may satisfy this condition
           in any reasonable manner based on the medium, means, and
           context in which You Share Adapted Material.

        3. You may not offer or impose any additional or different terms
           or conditions on, or apply any Effective Technological
           Measures to, Adapted Material that restrict exercise of the
           rights granted under the Adapter's License You apply.


 Section 4 -- Sui Generis Database Rights.

 Where the Licensed Rights include Sui Generis Database Rights that
 apply to Your use of the Licensed Material:

   a. for the avoidance of doubt, Section 2(a)(1) grants You the right
      to extract, reuse, reproduce, and Share all or a substantial
      portion of the contents of the database;

   b. if You include all or a substantial portion of the database
      contents in a database in which You have Sui Generis Database
      Rights, then the database in which You have Sui Generis Database
      Rights (but not its individual contents) is Adapted Material,

      including for purposes of Section 3(b); and
   c. You must comply with the conditions in Section 3(a) if You Share
      all or a substantial portion of the contents of the database.

 For the avoidance of doubt, this Section 4 supplements and does not
 replace Your obligations under this Public License where the Licensed
 Rights include other Copyright and Similar Rights.


 Section 5 -- Disclaimer of Warranties and Limitation of Liability.

   a. UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE
      EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS
      AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF
      ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS,
      IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION,
      WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR
      PURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT OR OTHER DEFECTS,
      ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT
      KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT
      ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU.

   b. TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE
      TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION,
      NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT,
      INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES,
      COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR
      USE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEEN
      ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR
      DAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR
      IN PART, THIS LIMITATION MAY NOT APPLY TO YOU.

   c. The disclaimer of warranties and limitation of liability provided
      above shall be interpreted in a manner that, to the extent
      possible, most closely approximates an absolute disclaimer and
      waiver of all liability.


 Section 6 -- Term and Termination.

   a. This Public License applies for the term of the Copyright and
      Similar Rights licensed here. However, if You fail to comply with
      this Public License, then Your rights under this Public License
      terminate automatically.

   b. Where Your right to use the Licensed Material has terminated under
      Section 6(a), it reinstates:

        1. automatically as of the date the violation is cured, provided
           it is cured within 30 days of Your discovery of the
           violation; or

        2. upon express reinstatement by the Licensor.

      For the avoidance of doubt, this Section 6(b) does not affect any
      right the Licensor may have to seek remedies for Your violations
      of this Public License.

   c. For the avoidance of doubt, the Licensor may also offer the
      Licensed Material under separate terms or conditions or stop
      distributing the Licensed Material at any time; however, doing so
      will not terminate this Public License.

   d. Sections 1, 5, 6, 7, and 8 survive termination of this Public
      License.


 Section 7 -- Other Terms and Conditions.

   a. The Licensor shall not be bound by any additional or different
      terms or conditions communicated by You unless expressly agreed.

   b. Any arrangements, understandings, or agreements regarding the
      Licensed Material not stated herein are separate from and
      independent of the terms and conditions of this Public License.


 Section 8 -- Interpretation.

   a. For the avoidance of doubt, this Public License does not, and
      shall not be interpreted to, reduce, limit, restrict, or impose
      conditions on any use of the Licensed Material that could lawfully
      be made without permission under this Public License.

   b. To the extent possible, if any provision of this Public License is
      deemed unenforceable, it shall be automatically reformed to the
      minimum extent necessary to make it enforceable. If the provision
      cannot be reformed, it shall be severed from this Public License
      without affecting the enforceability of the remaining terms and
      conditions.

   c. No term or condition of this Public License will be waived and no
      failure to comply consented to unless expressly agreed to by the
      Licensor.

   d. Nothing in this Public License constitutes or may be interpreted
      as a limitation upon, or waiver of, any privileges and immunities
      that apply to the Licensor or You, including from the legal
      processes of any jurisdiction or authority.


 =======================================================================

 Creative Commons is not a party to its public
 licenses. Notwithstanding, Creative Commons may elect to apply one of
 its public licenses to material it publishes and in those instances
 will be considered the “Licensor.” The text of the Creative Commons
 public licenses is dedicated to the public domain under the CC0 Public
 Domain Dedication. Except for the limited purpose of indicating that
 material is shared under a Creative Commons public license or as
 otherwise permitted by the Creative Commons policies published at
 creativecommons.org/policies, Creative Commons does not authorize the
 use of the trademark "Creative Commons" or any other trademark or logo
 of Creative Commons without its prior written consent including,
 without limitation, in connection with any unauthorized modifications
 to any of its public licenses or any other arrangements,
 understandings, or agreements concerning use of licensed material. For
 the avoidance of doubt, this paragraph does not form part of the
 public licenses.

 Creative Commons may be contacted at creativecommons.org.
 Copyright (c) 1991, 1993
 The Regents of the University of California.  All rights reserved.

 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
 are met:
 1. Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
 2. Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
 3. Neither the name of the University nor the names of its contributors
    may be used to endorse or promote products derived from this software
    without specific prior written permission.

 THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 SUCH DAMAGE.
 Apache License
                            Version 2.0, January 2004
                         http://www.apache.org/licenses/

    TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

    1. Definitions.

       "License" shall mean the terms and conditions for use, reproduction,
       and distribution as defined by Sections 1 through 9 of this document.

       "Licensor" shall mean the copyright owner or entity authorized by
       the copyright owner that is granting the License.

       "Legal Entity" shall mean the union of the acting entity and all
       other entities that control, are controlled by, or are under common
       control with that entity. For the purposes of this definition,
       "control" means (i) the power, direct or indirect, to cause the
       direction or management of such entity, whether by contract or
       otherwise, or (ii) ownership of fifty percent (50%) or more of the
       outstanding shares, or (iii) beneficial ownership of such entity.

       "You" (or "Your") shall mean an individual or Legal Entity
       exercising permissions granted by this License.

       "Source" form shall mean the preferred form for making modifications,
       including but not limited to software source code, documentation
       source, and configuration files.

       "Object" form shall mean any form resulting from mechanical
       transformation or translation of a Source form, including but
       not limited to compiled object code, generated documentation,
       and conversions to other media types.

       "Work" shall mean the work of authorship, whether in Source or
       Object form, made available under the License, as indicated by a
       copyright notice that is included in or attached to the work
       (an example is provided in the Appendix below).

       "Derivative Works" shall mean any work, whether in Source or Object
       form, that is based on (or derived from) the Work and for which the
       editorial revisions, annotations, elaborations, or other modifications
       represent, as a whole, an original work of authorship. For the purposes
       of this License, Derivative Works shall not include works that remain
       separable from, or merely link (or bind by name) to the interfaces of,
       the Work and Derivative Works thereof.

       "Contribution" shall mean any work of authorship, including
       the original version of the Work and any modifications or additions
       to that Work or Derivative Works thereof, that is intentionally
       submitted to Licensor for inclusion in the Work by the copyright owner
       or by an individual or Legal Entity authorized to submit on behalf of
       the copyright owner. For the purposes of this definition, "submitted"
       means any form of electronic, verbal, or written communication sent
       to the Licensor or its representatives, including but not limited to
       communication on electronic mailing lists, source code control systems,
       and issue tracking systems that are managed by, or on behalf of, the
       Licensor for the purpose of discussing and improving the Work, but
       excluding communication that is conspicuously marked or otherwise
       designated in writing by the copyright owner as "Not a Contribution."

       "Contributor" shall mean Licensor and any individual or Legal Entity
       on behalf of whom a Contribution has been received by Licensor and
       subsequently incorporated within the Work.

    2. Grant of Copyright License. Subject to the terms and conditions of
       this License, each Contributor hereby grants to You a perpetual,
       worldwide, non-exclusive, no-charge, royalty-free, irrevocable
       copyright license to reproduce, prepare Derivative Works of,
       publicly display, publicly perform, sublicense, and distribute the
       Work and such Derivative Works in Source or Object form.

    3. Grant of Patent License. Subject to the terms and conditions of
       this License, each Contributor hereby grants to You a perpetual,
       worldwide, non-exclusive, no-charge, royalty-free, irrevocable
       (except as stated in this section) patent license to make, have made,
       use, offer to sell, sell, import, and otherwise transfer the Work,
       where such license applies only to those patent claims licensable
       by such Contributor that are necessarily infringed by their
       Contribution(s) alone or by combination of their Contribution(s)
       with the Work to which such Contribution(s) was submitted. If You
       institute patent litigation against any entity (including a
       cross-claim or counterclaim in a lawsuit) alleging that the Work
       or a Contribution incorporated within the Work constitutes direct
       or contributory patent infringement, then any patent licenses
       granted to You under this License for that Work shall terminate
       as of the date such litigation is filed.

    4. Redistribution. You may reproduce and distribute copies of the
       Work or Derivative Works thereof in any medium, with or without
       modifications, and in Source or Object form, provided that You
       meet the following conditions:

       (a) You must give any other recipients of the Work or
           Derivative Works a copy of this License; and

       (b) You must cause any modified files to carry prominent notices
           stating that You changed the files; and

       (c) You must retain, in the Source form of any Derivative Works
           that You distribute, all copyright, patent, trademark, and
           attribution notices from the Source form of the Work,
           excluding those notices that do not pertain to any part of
           the Derivative Works; and

       (d) If the Work includes a "NOTICE" text file as part of its
           distribution, then any Derivative Works that You distribute must
           include a readable copy of the attribution notices contained
           within such NOTICE file, excluding those notices that do not
           pertain to any part of the Derivative Works, in at least one
           of the following places: within a NOTICE text file distributed
           as part of the Derivative Works; within the Source form or
           documentation, if provided along with the Derivative Works; or,
           within a display generated by the Derivative Works, if and
           wherever such third-party notices normally appear. The contents
           of the NOTICE file are for informational purposes only and
           do not modify the License. You may add Your own attribution
           notices within Derivative Works that You distribute, alongside
           or as an addendum to the NOTICE text from the Work, provided
           that such additional attribution notices cannot be construed
           as modifying the License.

       You may add Your own copyright statement to Your modifications and
       may provide additional or different license terms and conditions
       for use, reproduction, or distribution of Your modifications, or
       for any such Derivative Works as a whole, provided Your use,
       reproduction, and distribution of the Work otherwise complies with
       the conditions stated in this License.

    5. Submission of Contributions. Unless You explicitly state otherwise,
       any Contribution intentionally submitted for inclusion in the Work
       by You to the Licensor shall be under the terms and conditions of
       this License, without any additional terms or conditions.
       Notwithstanding the above, nothing herein shall supersede or modify
       the terms of any separate license agreement you may have executed
       with Licensor regarding such Contributions.

    6. Trademarks. This License does not grant permission to use the trade
       names, trademarks, service marks, or product names of the Licensor,
       except as required for reasonable and customary use in describing the
       origin of the Work and reproducing the content of the NOTICE file.

    7. Disclaimer of Warranty. Unless required by applicable law or
       agreed to in writing, Licensor provides the Work (and each
       Contributor provides its Contributions) on an "AS IS" BASIS,
       WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
       implied, including, without limitation, any warranties or conditions
       of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
       PARTICULAR PURPOSE. You are solely responsible for determining the
       appropriateness of using or redistributing the Work and assume any
       risks associated with Your exercise of permissions under this License.

    8. Limitation of Liability. In no event and under no legal theory,
       whether in tort (including negligence), contract, or otherwise,
       unless required by applicable law (such as deliberate and grossly
       negligent acts) or agreed to in writing, shall any Contributor be
       liable to You for damages, including any direct, indirect, special,
       incidental, or consequential damages of any character arising as a
       result of this License or out of the use or inability to use the
       Work (including but not limited to damages for loss of goodwill,
       work stoppage, computer failure or malfunction, or any and all
       other commercial damages or losses), even if such Contributor
       has been advised of the possibility of such damages.

    9. Accepting Warranty or Additional Liability. While redistributing
       the Work or Derivative Works thereof, You may choose to offer,
       and charge a fee for, acceptance of support, warranty, indemnity,
       or other liability obligations and/or rights consistent with this
       License. However, in accepting such obligations, You may act only
       on Your own behalf and on Your sole responsibility, not on behalf
       of any other Contributor, and only if You agree to indemnify,
       defend, and hold each Contributor harmless for any liability
       incurred by, or claims asserted against, such Contributor by reason
       of your accepting any such warranty or additional liability.

    END OF TERMS AND CONDITIONS

    APPENDIX: How to apply the Apache License to your work.

       To apply the Apache License to your work, attach the following
       boilerplate notice, with the fields enclosed by brackets "[]"
       replaced with your own identifying information. (Don't include
       the brackets!)  The text should be enclosed in the appropriate
       comment syntax for the file format. We also recommend that a
       file or class name and description of purpose be included on the
       same "printed page" as the copyright notice for easier
       identification within third-party archives.

    Copyright [yyyy] [name of copyright owner]

    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at

        http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
 Copyright © 2005-2020 Rich Felker, et al.

 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
 "Software"), to deal in the Software without restriction, including
 without limitation the rights to use, copy, modify, merge, publish,
 distribute, sublicense, and/or sell copies of the Software, and to
 permit persons to whom the Software is furnished to do so, subject to
 the following conditions:

 The above copyright notice and this permission notice shall be
 included in all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.