1eXosip2_license(3)                libeXosip2                eXosip2_license(3)
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NAME

6       eXosip2_license - COPYING
7
8
9                     GNU GENERAL PUBLIC LICENSE
10                        Version 2, June 1991
11
12        Copyright (C) 1989, 1991 Free Software Foundation, Inc.
13            59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
14        Everyone is permitted to copy and distribute verbatim copies
15        of this license document, but changing it is not allowed.
16
17                          Preamble
18
19         The licenses for most software are designed to take away your
20       freedom to share and change it.  By contrast, the GNU General Public
21       License is intended to guarantee your freedom to share and change free
22       software--to make sure the software is free for all its users.  This
23       General Public License applies to most of the Free Software
24       Foundation's software and to any other program whose authors commit to
25       using it.  (Some other Free Software Foundation software is covered by
26       the GNU Library General Public License instead.)  You can apply it to
27       your programs, too.
28
29         When we speak of free software, we are referring to freedom, not
30       price.  Our General Public Licenses are designed to make sure that you
31       have the freedom to distribute copies of free software (and charge for
32       this service if you wish), that you receive source code or can get it
33       if you want it, that you can change the software or use pieces of it
34       in new free programs; and that you know you can do these things.
35
36         To protect your rights, we need to make restrictions that forbid
37       anyone to deny you these rights or to ask you to surrender the rights.
38       These restrictions translate to certain responsibilities for you if you
39       distribute copies of the software, or if you modify it.
40
41         For example, if you distribute copies of such a program, whether
42       gratis or for a fee, you must give the recipients all the rights that
43       you have.  You must make sure that they, too, receive or can get the
44       source code.  And you must show them these terms so they know their
45       rights.
46
47         We protect your rights with two steps: (1) copyright the software, and
48       (2) offer you this license which gives you legal permission to copy,
49       distribute and/or modify the software.
50
51         Also, for each author's protection and ours, we want to make certain
52       that everyone understands that there is no warranty for this free
53       software.  If the software is modified by someone else and passed on, we
54       want its recipients to know that what they have is not the original, so
55       that any problems introduced by others will not reflect on the original
56       authors' reputations.
57
58         Finally, any free program is threatened constantly by software
59       patents.  We wish to avoid the danger that redistributors of a free
60       program will individually obtain patent licenses, in effect making the
61       program proprietary.  To prevent this, we have made it clear that any
62       patent must be licensed for everyone's free use or not licensed at all.
63
64         The precise terms and conditions for copying, distribution and
65       modification follow.
66       
67                     GNU GENERAL PUBLIC LICENSE
68          TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
69
70         0. This License applies to any program or other work which contains
71       a notice placed by the copyright holder saying it may be distributed
72       under the terms of this General Public License.  The "Program", below,
73       refers to any such program or work, and a "work based on the Program"
74       means either the Program or any derivative work under copyright law:
75       that is to say, a work containing the Program or a portion of it,
76       either verbatim or with modifications and/or translated into another
77       language.  (Hereinafter, translation is included without limitation in
78       the term "modification".)  Each licensee is addressed as "you".
79
80       Activities other than copying, distribution and modification are not
81       covered by this License; they are outside its scope.  The act of
82       running the Program is not restricted, and the output from the Program
83       is covered only if its contents constitute a work based on the
84       Program (independent of having been made by running the Program).
85       Whether that is true depends on what the Program does.
86
87         1. You may copy and distribute verbatim copies of the Program's
88       source code as you receive it, in any medium, provided that you
89       conspicuously and appropriately publish on each copy an appropriate
90       copyright notice and disclaimer of warranty; keep intact all the
91       notices that refer to this License and to the absence of any warranty;
92       and give any other recipients of the Program a copy of this License
93       along with the Program.
94
95       You may charge a fee for the physical act of transferring a copy, and
96       you may at your option offer warranty protection in exchange for a fee.
97
98         2. You may modify your copy or copies of the Program or any portion
99       of it, thus forming a work based on the Program, and copy and
100       distribute such modifications or work under the terms of Section 1
101       above, provided that you also meet all of these conditions:
102
103           a) You must cause the modified files to carry prominent notices
104           stating that you changed the files and the date of any change.
105
106           b) You must cause any work that you distribute or publish, that in
107           whole or in part contains or is derived from the Program or any
108           part thereof, to be licensed as a whole at no charge to all third
109           parties under the terms of this License.
110
111           c) If the modified program normally reads commands interactively
112           when run, you must cause it, when started running for such
113           interactive use in the most ordinary way, to print or display an
114           announcement including an appropriate copyright notice and a
115           notice that there is no warranty (or else, saying that you provide
116           a warranty) and that users may redistribute the program under
117           these conditions, and telling the user how to view a copy of this
118           License.  (Exception: if the Program itself is interactive but
119           does not normally print such an announcement, your work based on
120           the Program is not required to print an announcement.)
121       
122       These requirements apply to the modified work as a whole.  If
123       identifiable sections of that work are not derived from the Program,
124       and can be reasonably considered independent and separate works in
125       themselves, then this License, and its terms, do not apply to those
126       sections when you distribute them as separate works.  But when you
127       distribute the same sections as part of a whole which is a work based
128       on the Program, the distribution of the whole must be on the terms of
129       this License, whose permissions for other licensees extend to the
130       entire whole, and thus to each and every part regardless of who wrote it.
131
132       Thus, it is not the intent of this section to claim rights or contest
133       your rights to work written entirely by you; rather, the intent is to
134       exercise the right to control the distribution of derivative or
135       collective works based on the Program.
136
137       In addition, mere aggregation of another work not based on the Program
138       with the Program (or with a work based on the Program) on a volume of
139       a storage or distribution medium does not bring the other work under
140       the scope of this License.
141
142         3. You may copy and distribute the Program (or a work based on it,
143       under Section 2) in object code or executable form under the terms of
144       Sections 1 and 2 above provided that you also do one of the following:
145
146           a) Accompany it with the complete corresponding machine-readable
147           source code, which must be distributed under the terms of Sections
148           1 and 2 above on a medium customarily used for software interchange; or,
149
150           b) Accompany it with a written offer, valid for at least three
151           years, to give any third party, for a charge no more than your
152           cost of physically performing source distribution, a complete
153           machine-readable copy of the corresponding source code, to be
154           distributed under the terms of Sections 1 and 2 above on a medium
155           customarily used for software interchange; or,
156
157           c) Accompany it with the information you received as to the offer
158           to distribute corresponding source code.  (This alternative is
159           allowed only for noncommercial distribution and only if you
160           received the program in object code or executable form with such
161           an offer, in accord with Subsection b above.)
162
163       The source code for a work means the preferred form of the work for
164       making modifications to it.  For an executable work, complete source
165       code means all the source code for all modules it contains, plus any
166       associated interface definition files, plus the scripts used to
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170       form) with the major components (compiler, kernel, and so on) of the
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172       itself accompanies the executable.
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174       If distribution of executable or object code is made by offering
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176       access to copy the source code from the same place counts as
177       distribution of the source code, even though third parties are not
178       compelled to copy the source along with the object code.
179       
180         4. You may not copy, modify, sublicense, or distribute the Program
181       except as expressly provided under this License.  Any attempt
182       otherwise to copy, modify, sublicense or distribute the Program is
183       void, and will automatically terminate your rights under this License.
184       However, parties who have received copies, or rights, from you under
185       this License will not have their licenses terminated so long as such
186       parties remain in full compliance.
187
188         5. You are not required to accept this License, since you have not
189       signed it.  However, nothing else grants you permission to modify or
190       distribute the Program or its derivative works.  These actions are
191       prohibited by law if you do not accept this License.  Therefore, by
192       modifying or distributing the Program (or any work based on the
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194       all its terms and conditions for copying, distributing or modifying
195       the Program or works based on it.
196
197         6. Each time you redistribute the Program (or any work based on the
198       Program), the recipient automatically receives a license from the
199       original licensor to copy, distribute or modify the Program subject to
200       these terms and conditions.  You may not impose any further
201       restrictions on the recipients' exercise of the rights granted herein.
202       You are not responsible for enforcing compliance by third parties to
203       this License.
204
205         7. If, as a consequence of a court judgment or allegation of patent
206       infringement or for any other reason (not limited to patent issues),
207       conditions are imposed on you (whether by court order, agreement or
208       otherwise) that contradict the conditions of this License, they do not
209       excuse you from the conditions of this License.  If you cannot
210       distribute so as to satisfy simultaneously your obligations under this
211       License and any other pertinent obligations, then as a consequence you
212       may not distribute the Program at all.  For example, if a patent
213       license would not permit royalty-free redistribution of the Program by
214       all those who receive copies directly or indirectly through you, then
215       the only way you could satisfy both it and this License would be to
216       refrain entirely from distribution of the Program.
217
218       If any portion of this section is held invalid or unenforceable under
219       any particular circumstance, the balance of the section is intended to
220       apply and the section as a whole is intended to apply in other
221       circumstances.
222
223       It is not the purpose of this section to induce you to infringe any
224       patents or other property right claims or to contest validity of any
225       such claims; this section has the sole purpose of protecting the
226       integrity of the free software distribution system, which is
227       implemented by public license practices.  Many people have made
228       generous contributions to the wide range of software distributed
229       through that system in reliance on consistent application of that
230       system; it is up to the author/donor to decide if he or she is willing
231       to distribute software through any other system and a licensee cannot
232       impose that choice.
233
234       This section is intended to make thoroughly clear what is believed to
235       be a consequence of the rest of this License.
236       
237         8. If the distribution and/or use of the Program is restricted in
238       certain countries either by patents or by copyrighted interfaces, the
239       original copyright holder who places the Program under this License
240       may add an explicit geographical distribution limitation excluding
241       those countries, so that distribution is permitted only in or among
242       countries not thus excluded.  In such case, this License incorporates
243       the limitation as if written in the body of this License.
244
245         9. The Free Software Foundation may publish revised and/or new versions
246       of the General Public License from time to time.  Such new versions will
247       be similar in spirit to the present version, but may differ in detail to
248       address new problems or concerns.
249
250       Each version is given a distinguishing version number.  If the Program
251       specifies a version number of this License which applies to it and "any
252       later version", you have the option of following the terms and conditions
253       either of that version or of any later version published by the Free
254       Software Foundation.  If the Program does not specify a version number of
255       this License, you may choose any version ever published by the Free Software
256       Foundation.
257
258         10. If you wish to incorporate parts of the Program into other free
259       programs whose distribution conditions are different, write to the author
260       to ask for permission.  For software which is copyrighted by the Free
261       Software Foundation, write to the Free Software Foundation; we sometimes
262       make exceptions for this.  Our decision will be guided by the two goals
263       of preserving the free status of all derivatives of our free software and
264       of promoting the sharing and reuse of software generally.
265
266                          NO WARRANTY
267
268         11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
269       FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
270       OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
271       PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
272       OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
273       MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
274       TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
275       PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
276       REPAIR OR CORRECTION.
277
278         12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
279       WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
280       REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
281       INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
282       OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
283       TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
284       YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
285       PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
286       POSSIBILITY OF SUCH DAMAGES.
287
288                      END OF TERMS AND CONDITIONS
289       
290                How to Apply These Terms to Your New Programs
291
292         If you develop a new program, and you want it to be of the greatest
293       possible use to the public, the best way to achieve this is to make it
294       free software which everyone can redistribute and change under these terms.
295
296         To do so, attach the following notices to the program.  It is safest
297       to attach them to the start of each source file to most effectively
298       convey the exclusion of warranty; and each file should have at least
299       the "copyright" line and a pointer to where the full notice is found.
300
301           <one line to give the program's name and a brief idea of what it does.>
302           Copyright (C) <year>  <name of author>
303
304           This program is free software; you can redistribute it and/or modify
305           it under the terms of the GNU General Public License as published by
306           the Free Software Foundation; either version 2 of the License, or
307           (at your option) any later version.
308
309           This program is distributed in the hope that it will be useful,
310           but WITHOUT ANY WARRANTY; without even the implied warranty of
311           MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
312           GNU General Public License for more details.
313
314           You should have received a copy of the GNU General Public License
315           along with this program; if not, write to the Free Software
316           Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
317
318
319       Also add information on how to contact you by electronic and paper mail.
320
321       If the program is interactive, make it output a short notice like this
322       when it starts in an interactive mode:
323
324           Gnomovision version 69, Copyright (C) year  name of author
325           Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
326           This is free software, and you are welcome to redistribute it
327           under certain conditions; type `show c' for details.
328
329       The hypothetical commands `show w' and `show c' should show the appropriate
330       parts of the General Public License.  Of course, the commands you use may
331       be called something other than `show w' and `show c'; they could even be
332       mouse-clicks or menu items--whatever suits your program.
333
334       You should also get your employer (if you work as a programmer) or your
335       school, if any, to sign a "copyright disclaimer" for the program, if
336       necessary.  Here is a sample; alter the names:
337
338         Yoyodyne, Inc., hereby disclaims all copyright interest in the program
339         `Gnomovision' (which makes passes at compilers) written by James Hacker.
340
341         <signature of Ty Coon>, 1 April 1989
342         Ty Coon, President of Vice
343
344       This General Public License does not permit incorporating your program into
345       proprietary programs.  If your program is a subroutine library, you may
346       consider it more useful to permit linking proprietary applications with the
347       library.  If this is what you want to do, use the GNU Library General
348       Public License instead of this License.
349
350
351       eXosip2 (3.6.0)
352            * use optionnal c-ares DNS library for non blocking DNS access
353              as well as improvments over DNS operation such as NAPTR and
354              SRV records.
355            * again, so many minor change/fix/improvments, sorry for not
356              being able to have an history here... The git on savannah
357              will bring you all details!
358
359       eXosip2 (3.5.0)
360            * iphone with TCP/TLS background support.
361            * android support.
362            * a lot of minor change/fix/improvments, sorry for not being
363              able to have an history here...
364
365       eXosip2 (3.4.0)
366            * modification to allow using "windows certificate store" for TLS.
367            * handle keep alive for TCP/TLS.
368            * fix when receiving additionnal CRLF on reliable transport.
369            * modification to allow non-blocking socket for reliable transport. (TLS/TCP)
370            * fix tag issue with application where tag is missing.
371            * fix compilation for mingw
372            * fix Contact header in request within dialog for non-udp protocol.
373            * fix some DNS issue with vista?
374            * remove 481 auto answer for unsolicited NOTIFY.
375            * fix static id range.
376            * initial code for TCP fragmentation.
377            * osip_list prototypes and warnings fix
378            * fix transport matching for redirection using other transport than udp
379
380       eXosip2 (3.3.0)
381            * Fix when 200ok include a contact with an empty line parameter.
382            * Fix for replaces header longuer than 256 char.
383            * Fix SRV record with more than 10 answers.
384            * Sort SRV record.
385            * Option to disable NAPTR requests.
386
387       eXosip2 (3.2.0)
388            * Improve TLS support and add an API for ssl information & files.
389            * return new error code for all API.
390            * remove automatic answers to PRACK. (must be done in application now)
391            * remove automatically outgoing non established susbscriptions.
392
393       eXosip2 (3.1.0)
394            * AKA authentication.
395            * improve compliance & flexibility.
396
397       eXosip2 (3.0.4)
398            * fix building SUBSCRIBE refresh.
399            * fix compliance issue with refer-to to-tag/from-tag parameters.
400            * fix bug for retransmissions or ACK with proxy that resolve
401              to several IP.
402            * handle the "expires" parameter to update registration interval.
403            * handle the "expires" parameter to update publication interval.
404            * handle automatically publish refresh, and some error codes (423).
405
406       eXosip2 (3.0.3)
407            * Add TLS support.
408            * rewrite transport layer.
409            * add line= parameter in Contact headers for registrations.
410            * a few changes related to interop. issues.
411            * add missing *_REQUESTFAILURE events on no answer.
412            * Update registration interval when Expires header is in 200ok.
413
414       eXosip2 (3.0.2)
415            * fix call transfer issue with "Replaces" header.
416            * allow build/run eXosip in non-threaded model (without -DOSIP_MT).
417            * initial support for ucos.
418            * add support for qop authentication.
419            * remove registration context immediatly upon eXosip_register_remove.
420            * TCP: fix missing Contact in INVITE sent.
421            * TCP: fix missing "transport" in Contact for answers within dialog.
422            * TCP: fix possible race conditions.
423
424       eXosip2 (3.0.1)
425            * add Windows CE support with Visual Studio 2005
426              (WM5.0,PocketPC 2003/2005, Smartphone)
427            * Update to osip2-3.0.1
428            * Add SRV record capabilities.
429            * add new OPTIONS: do not send 101, remove pre-route set from message.
430
431       eXosip2 (2.2.3)
432            * announce NOTIFY answers to application.
433            * fix authentication bugs from previous patch.
434            * fix TCP bug
435            * fix using code 699
436
437       eXosip2 (2.2.2)
438            * new version synchronized with osip2
439            * total rewrite of eXosip.
440            *   -> new API for more flexibility
441            *   ->   media negotiation must now be handled outside of eXosip2
442
443       eXosip (0.9.1)
444            * add publish support through a nice API.
445
446       eXosip (0.9.0)
447            * improve presence support (busy, away, onthephone...).
448            * new eXosip_automatic_refresh() to refresh SUBSCRIBE and REGISTER.
449            * Fix dialog establishement when receiving NOTIFYs.
450            * This ChangeLog has not been updated seriously... Many changes
451            * have been done but they don't appear here. Sorry.
452            * status of libexosip:
453            *   call transfer : OK
454            *   redirection of calls (3XX) : OK
455            *   SUB/NOTIFY for presence : nearly OK (usable)
456            *   authenthication (REGISTER and INVITE only) : ok
457
458       eXosip (0.8.0)
459            * fix processing of 180 Ringing?
460            * fix bug when BYE is processed before a 2xx for INVITE.
461
462       eXosip (0.7.7)
463            * memory leaks.
464            * tiny bugs, code clean-up.
465
466       eXosip (0.7.6)
467            * fix bug when 1st proxy is using strict routing.
468            * support for IPv4 and IPv6.
469            * do not send 180 Ringing any more on new INVITEs.
470            * close correctly rtp streams in josua.
471            * improve the eXosip_event_wait method.
472            * performance updated on win32 for event handling.
473
474       eXosip (0.7.5)
475            * small improvements for josua.
476            * patch for IPv6 (uncomplete)
477            * patch for authentication
478            * improve configure.in file
479            * allow fancy reason phrase in SIP answer.
480            * allow to NAT traversal (firewall IP in SDP packet).
481
482       eXosip (0.7.3)
483            * warning fix.
484            * support for multiple registrations.
485            * support for authentifications for REGISTER.
486
487       eXosip (0.7.2)
488            * add RTP support with common ucl library.
489            * fix some memory leak.
490            * improve facility to change the local_sdp_port.
491            * add an event when ACK for 2xx is received.
492
493       eXosip (0.7.1)
494            * rewrite of header files and new directory architecture.
495            * support for INFO and OPTIONS within calls.
496            * support for AUDIO.
497
498       eXosip (0.6.3)
499            * use of event oriented interface in josua.
500
501       eXosip (0.6.2)
502            * New Event oriented interface with applications.
503            * support for both MSN or compliant UAs.
504            * SUBSCRIBE/NOTIFY for SIMPLE support.
505            * script for adding/updating subscribers. (eXosip_addsubscriber.sh)
506
507       eXosip (0.6.1)
508            * INVITE, CANCEL, BYE, REGISTER, MESSAGE, REFER
509            * script for adding/updating contact. (eXosip_addfreind.sh)
510            * script for adding/updating identity. (eXosip_addidentity.sh)
511            * NCURSES interface.
512            * options for current session.
513
514Version 3.1.0                   Wed Feb 13 2019             eXosip2_license(3)
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