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COPYING 18KB

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  1. pmacct [IP traffic accounting : BGP : BMP : IGP : Streaming Telemetry]
  2. pmacct is Copyright (C) 2003-2017 by Paolo Lucente
  3. GNU GENERAL PUBLIC LICENSE
  4. Version 2, June 1991
  5. Copyright (C) 1989, 1991 Free Software Foundation, Inc.
  6. 59 Temple Place - Suite 330, Boston, MA
  7. 02111-1307, USA.
  8. Everyone is permitted to copy and distribute verbatim copies
  9. of this license document, but changing it is not allowed.
  10. Preamble
  11. The licenses for most software are designed to take away your
  12. freedom to share and change it. By contrast, the GNU General Public
  13. License is intended to guarantee your freedom to share and change free
  14. software--to make sure the software is free for all its users. This
  15. General Public License applies to most of the Free Software
  16. Foundation's software and to any other program whose authors commit to
  17. using it. (Some other Free Software Foundation software is covered by
  18. the GNU Library General Public License instead.) You can apply it to
  19. your programs, too.
  20. When we speak of free software, we are referring to freedom, not
  21. price. Our General Public Licenses are designed to make sure that you
  22. have the freedom to distribute copies of free software (and charge for
  23. this service if you wish), that you receive source code or can get it
  24. if you want it, that you can change the software or use pieces of it
  25. in new free programs; and that you know you can do these things.
  26. To protect your rights, we need to make restrictions that forbid
  27. anyone to deny you these rights or to ask you to surrender the rights.
  28. These restrictions translate to certain responsibilities for you if you
  29. distribute copies of the software, or if you modify it.
  30. For example, if you distribute copies of such a program, whether
  31. gratis or for a fee, you must give the recipients all the rights that
  32. you have. You must make sure that they, too, receive or can get the
  33. source code. And you must show them these terms so they know their
  34. rights.
  35. We protect your rights with two steps: (1) copyright the software, and
  36. (2) offer you this license which gives you legal permission to copy,
  37. distribute and/or modify the software.
  38. Also, for each author's protection and ours, we want to make certain
  39. that everyone understands that there is no warranty for this free
  40. software. If the software is modified by someone else and passed on, we
  41. want its recipients to know that what they have is not the original, so
  42. that any problems introduced by others will not reflect on the original
  43. authors' reputations.
  44. Finally, any free program is threatened constantly by software
  45. patents. We wish to avoid the danger that redistributors of a free
  46. program will individually obtain patent licenses, in effect making the
  47. program proprietary. To prevent this, we have made it clear that any
  48. patent must be licensed for everyone's free use or not licensed at all.
  49. The precise terms and conditions for copying, distribution and
  50. modification follow.
  51. GNU GENERAL PUBLIC LICENSE
  52. TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
  53. 0. This License applies to any program or other work which contains
  54. a notice placed by the copyright holder saying it may be distributed
  55. under the terms of this General Public License. The "Program", below,
  56. refers to any such program or work, and a "work based on the Program"
  57. means either the Program or any derivative work under copyright law:
  58. that is to say, a work containing the Program or a portion of it,
  59. either verbatim or with modifications and/or translated into another
  60. language. (Hereinafter, translation is included without limitation in
  61. the term "modification".) Each licensee is addressed as "you".
  62. Activities other than copying, distribution and modification are not
  63. covered by this License; they are outside its scope. The act of
  64. running the Program is not restricted, and the output from the Program
  65. is covered only if its contents constitute a work based on the
  66. Program (independent of having been made by running the Program).
  67. Whether that is true depends on what the Program does.
  68. 1. You may copy and distribute verbatim copies of the Program's
  69. source code as you receive it, in any medium, provided that you
  70. conspicuously and appropriately publish on each copy an appropriate
  71. copyright notice and disclaimer of warranty; keep intact all the
  72. notices that refer to this License and to the absence of any warranty;
  73. and give any other recipients of the Program a copy of this License
  74. along with the Program.
  75. You may charge a fee for the physical act of transferring a copy, and
  76. you may at your option offer warranty protection in exchange for a fee.
  77. 2. You may modify your copy or copies of the Program or any portion
  78. of it, thus forming a work based on the Program, and copy and
  79. distribute such modifications or work under the terms of Section 1
  80. above, provided that you also meet all of these conditions:
  81. a) You must cause the modified files to carry prominent notices
  82. stating that you changed the files and the date of any change.
  83. b) You must cause any work that you distribute or publish, that in
  84. whole or in part contains or is derived from the Program or any
  85. part thereof, to be licensed as a whole at no charge to all third
  86. parties under the terms of this License.
  87. c) If the modified program normally reads commands interactively
  88. when run, you must cause it, when started running for such
  89. interactive use in the most ordinary way, to print or display an
  90. announcement including an appropriate copyright notice and a
  91. notice that there is no warranty (or else, saying that you provide
  92. a warranty) and that users may redistribute the program under
  93. these conditions, and telling the user how to view a copy of this
  94. License. (Exception: if the Program itself is interactive but
  95. does not normally print such an announcement, your work based on
  96. the Program is not required to print an announcement.)
  97. These requirements apply to the modified work as a whole. If
  98. identifiable sections of that work are not derived from the Program,
  99. and can be reasonably considered independent and separate works in
  100. themselves, then this License, and its terms, do not apply to those
  101. sections when you distribute them as separate works. But when you
  102. distribute the same sections as part of a whole which is a work based
  103. on the Program, the distribution of the whole must be on the terms of
  104. this License, whose permissions for other licensees extend to the
  105. entire whole, and thus to each and every part regardless of who wrote it.
  106. Thus, it is not the intent of this section to claim rights or contest
  107. your rights to work written entirely by you; rather, the intent is to
  108. exercise the right to control the distribution of derivative or
  109. collective works based on the Program.
  110. In addition, mere aggregation of another work not based on the Program
  111. with the Program (or with a work based on the Program) on a volume of
  112. a storage or distribution medium does not bring the other work under
  113. the scope of this License.
  114. 3. You may copy and distribute the Program (or a work based on it,
  115. under Section 2) in object code or executable form under the terms of
  116. Sections 1 and 2 above provided that you also do one of the following:
  117. a) Accompany it with the complete corresponding machine-readable
  118. source code, which must be distributed under the terms of Sections
  119. 1 and 2 above on a medium customarily used for software interchange; or,
  120. b) Accompany it with a written offer, valid for at least three
  121. years, to give any third party, for a charge no more than your
  122. cost of physically performing source distribution, a complete
  123. machine-readable copy of the corresponding source code, to be
  124. distributed under the terms of Sections 1 and 2 above on a medium
  125. customarily used for software interchange; or,
  126. c) Accompany it with the information you received as to the offer
  127. to distribute corresponding source code. (This alternative is
  128. allowed only for noncommercial distribution and only if you
  129. received the program in object code or executable form with such
  130. an offer, in accord with Subsection b above.)
  131. The source code for a work means the preferred form of the work for
  132. making modifications to it. For an executable work, complete source
  133. code means all the source code for all modules it contains, plus any
  134. associated interface definition files, plus the scripts used to
  135. control compilation and installation of the executable. However, as a
  136. special exception, the source code distributed need not include
  137. anything that is normally distributed (in either source or binary
  138. form) with the major components (compiler, kernel, and so on) of the
  139. operating system on which the executable runs, unless that component
  140. itself accompanies the executable.
  141. If distribution of executable or object code is made by offering
  142. access to copy from a designated place, then offering equivalent
  143. access to copy the source code from the same place counts as
  144. distribution of the source code, even though third parties are not
  145. compelled to copy the source along with the object code.
  146. 4. You may not copy, modify, sublicense, or distribute the Program
  147. except as expressly provided under this License. Any attempt
  148. otherwise to copy, modify, sublicense or distribute the Program is
  149. void, and will automatically terminate your rights under this License.
  150. However, parties who have received copies, or rights, from you under
  151. this License will not have their licenses terminated so long as such
  152. parties remain in full compliance.
  153. 5. You are not required to accept this License, since you have not
  154. signed it. However, nothing else grants you permission to modify or
  155. distribute the Program or its derivative works. These actions are
  156. prohibited by law if you do not accept this License. Therefore, by
  157. modifying or distributing the Program (or any work based on the
  158. Program), you indicate your acceptance of this License to do so, and
  159. all its terms and conditions for copying, distributing or modifying
  160. the Program or works based on it.
  161. 6. Each time you redistribute the Program (or any work based on the
  162. Program), the recipient automatically receives a license from the
  163. original licensor to copy, distribute or modify the Program subject to
  164. these terms and conditions. You may not impose any further
  165. restrictions on the recipients' exercise of the rights granted herein.
  166. You are not responsible for enforcing compliance by third parties to
  167. this License.
  168. 7. If, as a consequence of a court judgment or allegation of patent
  169. infringement or for any other reason (not limited to patent issues),
  170. conditions are imposed on you (whether by court order, agreement or
  171. otherwise) that contradict the conditions of this License, they do not
  172. excuse you from the conditions of this License. If you cannot
  173. distribute so as to satisfy simultaneously your obligations under this
  174. License and any other pertinent obligations, then as a consequence you
  175. may not distribute the Program at all. For example, if a patent
  176. license would not permit royalty-free redistribution of the Program by
  177. all those who receive copies directly or indirectly through you, then
  178. the only way you could satisfy both it and this License would be to
  179. refrain entirely from distribution of the Program.
  180. If any portion of this section is held invalid or unenforceable under
  181. any particular circumstance, the balance of the section is intended to
  182. apply and the section as a whole is intended to apply in other
  183. circumstances.
  184. It is not the purpose of this section to induce you to infringe any
  185. patents or other property right claims or to contest validity of any
  186. such claims; this section has the sole purpose of protecting the
  187. integrity of the free software distribution system, which is
  188. implemented by public license practices. Many people have made
  189. generous contributions to the wide range of software distributed
  190. through that system in reliance on consistent application of that
  191. system; it is up to the author/donor to decide if he or she is willing
  192. to distribute software through any other system and a licensee cannot
  193. impose that choice.
  194. This section is intended to make thoroughly clear what is believed to
  195. be a consequence of the rest of this License.
  196. 8. If the distribution and/or use of the Program is restricted in
  197. certain countries either by patents or by copyrighted interfaces, the
  198. original copyright holder who places the Program under this License
  199. may add an explicit geographical distribution limitation excluding
  200. those countries, so that distribution is permitted only in or among
  201. countries not thus excluded. In such case, this License incorporates
  202. the limitation as if written in the body of this License.
  203. 9. The Free Software Foundation may publish revised and/or new versions
  204. of the General Public License from time to time. Such new versions will
  205. be similar in spirit to the present version, but may differ in detail to
  206. address new problems or concerns.
  207. Each version is given a distinguishing version number. If the Program
  208. specifies a version number of this License which applies to it and "any
  209. later version", you have the option of following the terms and conditions
  210. either of that version or of any later version published by the Free
  211. Software Foundation. If the Program does not specify a version number of
  212. this License, you may choose any version ever published by the Free Software
  213. Foundation.
  214. 10. If you wish to incorporate parts of the Program into other free
  215. programs whose distribution conditions are different, write to the author
  216. to ask for permission. For software which is copyrighted by the Free
  217. Software Foundation, write to the Free Software Foundation; we sometimes
  218. make exceptions for this. Our decision will be guided by the two goals
  219. of preserving the free status of all derivatives of our free software and
  220. of promoting the sharing and reuse of software generally.
  221. NO WARRANTY
  222. 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
  223. FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
  224. OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
  225. PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
  226. OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  227. MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
  228. TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
  229. PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
  230. REPAIR OR CORRECTION.
  231. 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
  232. WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
  233. REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
  234. INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
  235. OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
  236. TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
  237. YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
  238. PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
  239. POSSIBILITY OF SUCH DAMAGES.
  240. END OF TERMS AND CONDITIONS
  241. Appendix: How to Apply These Terms to Your New Programs
  242. If you develop a new program, and you want it to be of the greatest
  243. possible use to the public, the best way to achieve this is to make it
  244. free software which everyone can redistribute and change under these terms.
  245. To do so, attach the following notices to the program. It is safest
  246. to attach them to the start of each source file to most effectively
  247. convey the exclusion of warranty; and each file should have at least
  248. the "copyright" line and a pointer to where the full notice is found.
  249. <one line to give the program's name and a brief idea of what it does.>
  250. Copyright (C) 19yy <name of author>
  251. This program is free software; you can redistribute it and/or modify
  252. it under the terms of the GNU General Public License as published by
  253. the Free Software Foundation; either version 2 of the License, or
  254. (at your option) any later version.
  255. This program is distributed in the hope that it will be useful,
  256. but WITHOUT ANY WARRANTY; without even the implied warranty of
  257. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  258. GNU General Public License for more details.
  259. You should have received a copy of the GNU General Public License
  260. along with this program; if not, write to the Free Software
  261. Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  262. Also add information on how to contact you by electronic and paper mail.
  263. If the program is interactive, make it output a short notice like this
  264. when it starts in an interactive mode:
  265. Gnomovision version 69, Copyright (C) 19yy name of author
  266. Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
  267. This is free software, and you are welcome to redistribute it
  268. under certain conditions; type `show c' for details.
  269. The hypothetical commands `show w' and `show c' should show the appropriate
  270. parts of the General Public License. Of course, the commands you use may
  271. be called something other than `show w' and `show c'; they could even be
  272. mouse-clicks or menu items--whatever suits your program.
  273. You should also get your employer (if you work as a programmer) or your
  274. school, if any, to sign a "copyright disclaimer" for the program, if
  275. necessary. Here is a sample; alter the names:
  276. Yoyodyne, Inc., hereby disclaims all copyright interest in the program
  277. `Gnomovision' (which makes passes at compilers) written by James Hacker.
  278. <signature of Ty Coon>, 1 April 1989
  279. Ty Coon, President of Vice
  280. This General Public License does not permit incorporating your program into
  281. proprietary programs. If your program is a subroutine library, you may
  282. consider it more useful to permit linking proprietary applications with the
  283. library. If this is what you want to do, use the GNU Library General
  284. Public License instead of this License.