1 <appendix id="license">
2 <!-- $Id: license.xml,v 1.13 2006-09-22 12:34:45 adam Exp $ -->
7 Copyright © 1995-2006 Index Data ApS.
11 Zebra is free software; you can redistribute it and/or modify it under
12 the terms of the GNU General Public License as published by the Free
13 Software Foundation; either version 2, or (at your option) any later
18 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
19 WARRANTY; without even the implied warranty of MERCHANTABILITY or
20 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
25 You should have received a copy of the GNU General Public License
26 along with Zebra; see the file LICENSE.zebra. If not, write to the
27 Free Software Foundation,
28 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
32 <title>GNU General Public License</title>
34 GNU GENERAL PUBLIC LICENSE
37 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
38 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
39 w Everyone is permitted to copy and distribute verbatim copies
40 of this license document, but changing it is not allowed.
44 The licenses for most software are designed to take away your
45 freedom to share and change it. By contrast, the GNU General Public
46 License is intended to guarantee your freedom to share and change free
47 software--to make sure the software is free for all its users. This
48 General Public License applies to most of the Free Software
49 Foundation's software and to any other program whose authors commit to
50 using it. (Some other Free Software Foundation software is covered by
51 the GNU Library General Public License instead.) You can apply it to
54 When we speak of free software, we are referring to freedom, not
55 price. Our General Public Licenses are designed to make sure that you
56 have the freedom to distribute copies of free software (and charge for
57 this service if you wish), that you receive source code or can get it
58 if you want it, that you can change the software or use pieces of it
59 in new free programs; and that you know you can do these things.
61 To protect your rights, we need to make restrictions that forbid
62 anyone to deny you these rights or to ask you to surrender the rights.
63 These restrictions translate to certain responsibilities for you if you
64 distribute copies of the software, or if you modify it.
66 For example, if you distribute copies of such a program, whether
67 gratis or for a fee, you must give the recipients all the rights that
68 you have. You must make sure that they, too, receive or can get the
69 source code. And you must show them these terms so they know their
72 We protect your rights with two steps: (1) copyright the software, and
73 (2) offer you this license which gives you legal permission to copy,
74 distribute and/or modify the software.
76 Also, for each author's protection and ours, we want to make certain
77 that everyone understands that there is no warranty for this free
78 software. If the software is modified by someone else and passed on, we
79 want its recipients to know that what they have is not the original, so
80 that any problems introduced by others will not reflect on the original
83 Finally, any free program is threatened constantly by software
84 patents. We wish to avoid the danger that redistributors of a free
85 program will individually obtain patent licenses, in effect making the
86 program proprietary. To prevent this, we have made it clear that any
87 patent must be licensed for everyone's free use or not licensed at all.
89 The precise terms and conditions for copying, distribution and
92 GNU GENERAL PUBLIC LICENSE
93 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
95 0. This License applies to any program or other work which contains
96 a notice placed by the copyright holder saying it may be distributed
97 under the terms of this General Public License. The "Program", below,
98 refers to any such program or work, and a "work based on the Program"
99 means either the Program or any derivative work under copyright law:
100 that is to say, a work containing the Program or a portion of it,
101 either verbatim or with modifications and/or translated into another
102 language. (Hereinafter, translation is included without limitation in
103 the term "modification".) Each licensee is addressed as "you".
105 Activities other than copying, distribution and modification are not
106 covered by this License; they are outside its scope. The act of
107 running the Program is not restricted, and the output from the Program
108 is covered only if its contents constitute a work based on the
109 Program (independent of having been made by running the Program).
110 Whether that is true depends on what the Program does.
112 1. You may copy and distribute verbatim copies of the Program's
113 source code as you receive it, in any medium, provided that you
114 conspicuously and appropriately publish on each copy an appropriate
115 copyright notice and disclaimer of warranty; keep intact all the
116 notices that refer to this License and to the absence of any warranty;
117 and give any other recipients of the Program a copy of this License
118 along with the Program.
120 You may charge a fee for the physical act of transferring a copy, and
121 you may at your option offer warranty protection in exchange for a fee.
123 2. You may modify your copy or copies of the Program or any portion
124 of it, thus forming a work based on the Program, and copy and
125 distribute such modifications or work under the terms of Section 1
126 above, provided that you also meet all of these conditions:
128 a) You must cause the modified files to carry prominent notices
129 stating that you changed the files and the date of any change.
131 b) You must cause any work that you distribute or publish, that in
132 whole or in part contains or is derived from the Program or any
133 part thereof, to be licensed as a whole at no charge to all third
134 parties under the terms of this License.
136 c) If the modified program normally reads commands interactively
137 when run, you must cause it, when started running for such
138 interactive use in the most ordinary way, to print or display an
139 announcement including an appropriate copyright notice and a
140 notice that there is no warranty (or else, saying that you provide
141 a warranty) and that users may redistribute the program under
142 these conditions, and telling the user how to view a copy of this
143 License. (Exception: if the Program itself is interactive but
144 does not normally print such an announcement, your work based on
145 the Program is not required to print an announcement.)
147 These requirements apply to the modified work as a whole. If
148 identifiable sections of that work are not derived from the Program,
149 and can be reasonably considered independent and separate works in
150 themselves, then this License, and its terms, do not apply to those
151 sections when you distribute them as separate works. But when you
152 distribute the same sections as part of a whole which is a work based
153 on the Program, the distribution of the whole must be on the terms of
154 this License, whose permissions for other licensees extend to the
155 entire whole, and thus to each and every part regardless of who wrote it.
157 Thus, it is not the intent of this section to claim rights or contest
158 your rights to work written entirely by you; rather, the intent is to
159 exercise the right to control the distribution of derivative or
160 collective works based on the Program.
162 In addition, mere aggregation of another work not based on the Program
163 with the Program (or with a work based on the Program) on a volume of
164 a storage or distribution medium does not bring the other work under
165 the scope of this License.
167 3. You may copy and distribute the Program (or a work based on it,
168 under Section 2) in object code or executable form under the terms of
169 Sections 1 and 2 above provided that you also do one of the following:
171 a) Accompany it with the complete corresponding machine-readable
172 source code, which must be distributed under the terms of Sections
173 1 and 2 above on a medium customarily used for software interchange; or,
175 b) Accompany it with a written offer, valid for at least three
176 years, to give any third party, for a charge no more than your
177 cost of physically performing source distribution, a complete
178 machine-readable copy of the corresponding source code, to be
179 distributed under the terms of Sections 1 and 2 above on a medium
180 customarily used for software interchange; or,
182 c) Accompany it with the information you received as to the offer
183 to distribute corresponding source code. (This alternative is
184 allowed only for noncommercial distribution and only if you
185 received the program in object code or executable form with such
186 an offer, in accord with Subsection b above.)
188 The source code for a work means the preferred form of the work for
189 making modifications to it. For an executable work, complete source
190 code means all the source code for all modules it contains, plus any
191 associated interface definition files, plus the scripts used to
192 control compilation and installation of the executable. However, as a
193 special exception, the source code distributed need not include
194 anything that is normally distributed (in either source or binary
195 form) with the major components (compiler, kernel, and so on) of the
196 operating system on which the executable runs, unless that component
197 itself accompanies the executable.
199 If distribution of executable or object code is made by offering
200 access to copy from a designated place, then offering equivalent
201 access to copy the source code from the same place counts as
202 distribution of the source code, even though third parties are not
203 compelled to copy the source along with the object code.
205 4. You may not copy, modify, sublicense, or distribute the Program
206 except as expressly provided under this License. Any attempt
207 otherwise to copy, modify, sublicense or distribute the Program is
208 void, and will automatically terminate your rights under this License.
209 However, parties who have received copies, or rights, from you under
210 this License will not have their licenses terminated so long as such
211 parties remain in full compliance.
213 5. You are not required to accept this License, since you have not
214 signed it. However, nothing else grants you permission to modify or
215 distribute the Program or its derivative works. These actions are
216 prohibited by law if you do not accept this License. Therefore, by
217 modifying or distributing the Program (or any work based on the
218 Program), you indicate your acceptance of this License to do so, and
219 all its terms and conditions for copying, distributing or modifying
220 the Program or works based on it.
222 6. Each time you redistribute the Program (or any work based on the
223 Program), the recipient automatically receives a license from the
224 original licensor to copy, distribute or modify the Program subject to
225 these terms and conditions. You may not impose any further
226 restrictions on the recipients' exercise of the rights granted herein.
227 You are not responsible for enforcing compliance by third parties to
230 7. If, as a consequence of a court judgment or allegation of patent
231 infringement or for any other reason (not limited to patent issues),
232 conditions are imposed on you (whether by court order, agreement or
233 otherwise) that contradict the conditions of this License, they do not
234 excuse you from the conditions of this License. If you cannot
235 distribute so as to satisfy simultaneously your obligations under this
236 License and any other pertinent obligations, then as a consequence you
237 may not distribute the Program at all. For example, if a patent
238 license would not permit royalty-free redistribution of the Program by
239 all those who receive copies directly or indirectly through you, then
240 the only way you could satisfy both it and this License would be to
241 refrain entirely from distribution of the Program.
243 If any portion of this section is held invalid or unenforceable under
244 any particular circumstance, the balance of the section is intended to
245 apply and the section as a whole is intended to apply in other
248 It is not the purpose of this section to induce you to infringe any
249 patents or other property right claims or to contest validity of any
250 such claims; this section has the sole purpose of protecting the
251 integrity of the free software distribution system, which is
252 implemented by public license practices. Many people have made
253 generous contributions to the wide range of software distributed
254 through that system in reliance on consistent application of that
255 system; it is up to the author/donor to decide if he or she is willing
256 to distribute software through any other system and a licensee cannot
259 This section is intended to make thoroughly clear what is believed to
260 be a consequence of the rest of this License.
262 8. If the distribution and/or use of the Program is restricted in
263 certain countries either by patents or by copyrighted interfaces, the
264 original copyright holder who places the Program under this License
265 may add an explicit geographical distribution limitation excluding
266 those countries, so that distribution is permitted only in or among
267 countries not thus excluded. In such case, this License incorporates
268 the limitation as if written in the body of this License.
270 9. The Free Software Foundation may publish revised and/or new versions
271 of the General Public License from time to time. Such new versions will
272 be similar in spirit to the present version, but may differ in detail to
273 address new problems or concerns.
275 Each version is given a distinguishing version number. If the Program
276 specifies a version number of this License which applies to it and "any
277 later version", you have the option of following the terms and conditions
278 either of that version or of any later version published by the Free
279 Software Foundation. If the Program does not specify a version number of
280 this License, you may choose any version ever published by the Free Software
283 10. If you wish to incorporate parts of the Program into other free
284 programs whose distribution conditions are different, write to the author
285 to ask for permission. For software which is copyrighted by the Free
286 Software Foundation, write to the Free Software Foundation; we sometimes
287 make exceptions for this. Our decision will be guided by the two goals
288 of preserving the free status of all derivatives of our free software and
289 of promoting the sharing and reuse of software generally.
293 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
294 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
295 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
296 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
297 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
298 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
299 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
300 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
301 REPAIR OR CORRECTION.
303 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
304 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
305 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
306 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
307 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
308 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
309 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
310 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
311 POSSIBILITY OF SUCH DAMAGES.
313 END OF TERMS AND CONDITIONS
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