busybox/LICENSE
<<
>>
Prefs
   1--- A note on GPL versions
   2
   3BusyBox is distributed under version 2 of the General Public License (included
   4in its entirety, below).  Version 2 is the only version of this license which
   5this version of BusyBox (or modified versions derived from this one) may be
   6distributed under.
   7
   8------------------------------------------------------------------------
   9                    GNU GENERAL PUBLIC LICENSE
  10                       Version 2, June 1991
  11
  12 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
  13     51 Franklin St, Fifth Floor, Boston, MA  02110-1301  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
  20freedom to share and change it.  By contrast, the GNU General Public
  21License is intended to guarantee your freedom to share and change free
  22software--to make sure the software is free for all its users.  This
  23General Public License applies to most of the Free Software
  24Foundation's software and to any other program whose authors commit to
  25using it.  (Some other Free Software Foundation software is covered by
  26the GNU Library General Public License instead.)  You can apply it to
  27your programs, too.
  28
  29  When we speak of free software, we are referring to freedom, not
  30price.  Our General Public Licenses are designed to make sure that you
  31have the freedom to distribute copies of free software (and charge for
  32this service if you wish), that you receive source code or can get it
  33if you want it, that you can change the software or use pieces of it
  34in 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
  37anyone to deny you these rights or to ask you to surrender the rights.
  38These restrictions translate to certain responsibilities for you if you
  39distribute copies of the software, or if you modify it.
  40
  41  For example, if you distribute copies of such a program, whether
  42gratis or for a fee, you must give the recipients all the rights that
  43you have.  You must make sure that they, too, receive or can get the
  44source code.  And you must show them these terms so they know their
  45rights.
  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,
  49distribute and/or modify the software.
  50
  51  Also, for each author's protection and ours, we want to make certain
  52that everyone understands that there is no warranty for this free
  53software.  If the software is modified by someone else and passed on, we
  54want its recipients to know that what they have is not the original, so
  55that any problems introduced by others will not reflect on the original
  56authors' reputations.
  57
  58  Finally, any free program is threatened constantly by software
  59patents.  We wish to avoid the danger that redistributors of a free
  60program will individually obtain patent licenses, in effect making the
  61program proprietary.  To prevent this, we have made it clear that any
  62patent must be licensed for everyone's free use or not licensed at all.
  63
  64  The precise terms and conditions for copying, distribution and
  65modification 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
  71a notice placed by the copyright holder saying it may be distributed
  72under the terms of this General Public License.  The "Program", below,
  73refers to any such program or work, and a "work based on the Program"
  74means either the Program or any derivative work under copyright law:
  75that is to say, a work containing the Program or a portion of it,
  76either verbatim or with modifications and/or translated into another
  77language.  (Hereinafter, translation is included without limitation in
  78the term "modification".)  Each licensee is addressed as "you".
  79
  80Activities other than copying, distribution and modification are not
  81covered by this License; they are outside its scope.  The act of
  82running the Program is not restricted, and the output from the Program
  83is covered only if its contents constitute a work based on the
  84Program (independent of having been made by running the Program).
  85Whether that is true depends on what the Program does.
  86
  87  1. You may copy and distribute verbatim copies of the Program's
  88source code as you receive it, in any medium, provided that you
  89conspicuously and appropriately publish on each copy an appropriate
  90copyright notice and disclaimer of warranty; keep intact all the
  91notices that refer to this License and to the absence of any warranty;
  92and give any other recipients of the Program a copy of this License
  93along with the Program.
  94
  95You may charge a fee for the physical act of transferring a copy, and
  96you 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
  99of it, thus forming a work based on the Program, and copy and
 100distribute such modifications or work under the terms of Section 1
 101above, 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
 122These requirements apply to the modified work as a whole.  If
 123identifiable sections of that work are not derived from the Program,
 124and can be reasonably considered independent and separate works in
 125themselves, then this License, and its terms, do not apply to those
 126sections when you distribute them as separate works.  But when you
 127distribute the same sections as part of a whole which is a work based
 128on the Program, the distribution of the whole must be on the terms of
 129this License, whose permissions for other licensees extend to the
 130entire whole, and thus to each and every part regardless of who wrote it.
 131
 132Thus, it is not the intent of this section to claim rights or contest
 133your rights to work written entirely by you; rather, the intent is to
 134exercise the right to control the distribution of derivative or
 135collective works based on the Program.
 136
 137In addition, mere aggregation of another work not based on the Program
 138with the Program (or with a work based on the Program) on a volume of
 139a storage or distribution medium does not bring the other work under
 140the scope of this License.
 141
 142  3. You may copy and distribute the Program (or a work based on it,
 143under Section 2) in object code or executable form under the terms of
 144Sections 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
 163The source code for a work means the preferred form of the work for
 164making modifications to it.  For an executable work, complete source
 165code means all the source code for all modules it contains, plus any
 166associated interface definition files, plus the scripts used to
 167control compilation and installation of the executable.  However, as a
 168special exception, the source code distributed need not include
 169anything that is normally distributed (in either source or binary
 170form) with the major components (compiler, kernel, and so on) of the
 171operating system on which the executable runs, unless that component
 172itself accompanies the executable.
 173
 174If distribution of executable or object code is made by offering
 175access to copy from a designated place, then offering equivalent
 176access to copy the source code from the same place counts as
 177distribution of the source code, even though third parties are not
 178compelled to copy the source along with the object code.
 179
 180  4. You may not copy, modify, sublicense, or distribute the Program
 181except as expressly provided under this License.  Any attempt
 182otherwise to copy, modify, sublicense or distribute the Program is
 183void, and will automatically terminate your rights under this License.
 184However, parties who have received copies, or rights, from you under
 185this License will not have their licenses terminated so long as such
 186parties remain in full compliance.
 187
 188  5. You are not required to accept this License, since you have not
 189signed it.  However, nothing else grants you permission to modify or
 190distribute the Program or its derivative works.  These actions are
 191prohibited by law if you do not accept this License.  Therefore, by
 192modifying or distributing the Program (or any work based on the
 193Program), you indicate your acceptance of this License to do so, and
 194all its terms and conditions for copying, distributing or modifying
 195the Program or works based on it.
 196
 197  6. Each time you redistribute the Program (or any work based on the
 198Program), the recipient automatically receives a license from the
 199original licensor to copy, distribute or modify the Program subject to
 200these terms and conditions.  You may not impose any further
 201restrictions on the recipients' exercise of the rights granted herein.
 202You are not responsible for enforcing compliance by third parties to
 203this License.
 204
 205  7. If, as a consequence of a court judgment or allegation of patent
 206infringement or for any other reason (not limited to patent issues),
 207conditions are imposed on you (whether by court order, agreement or
 208otherwise) that contradict the conditions of this License, they do not
 209excuse you from the conditions of this License.  If you cannot
 210distribute so as to satisfy simultaneously your obligations under this
 211License and any other pertinent obligations, then as a consequence you
 212may not distribute the Program at all.  For example, if a patent
 213license would not permit royalty-free redistribution of the Program by
 214all those who receive copies directly or indirectly through you, then
 215the only way you could satisfy both it and this License would be to
 216refrain entirely from distribution of the Program.
 217
 218If any portion of this section is held invalid or unenforceable under
 219any particular circumstance, the balance of the section is intended to
 220apply and the section as a whole is intended to apply in other
 221circumstances.
 222
 223It is not the purpose of this section to induce you to infringe any
 224patents or other property right claims or to contest validity of any
 225such claims; this section has the sole purpose of protecting the
 226integrity of the free software distribution system, which is
 227implemented by public license practices.  Many people have made
 228generous contributions to the wide range of software distributed
 229through that system in reliance on consistent application of that
 230system; it is up to the author/donor to decide if he or she is willing
 231to distribute software through any other system and a licensee cannot
 232impose that choice.
 233
 234This section is intended to make thoroughly clear what is believed to
 235be a consequence of the rest of this License.
 236
 237  8. If the distribution and/or use of the Program is restricted in
 238certain countries either by patents or by copyrighted interfaces, the
 239original copyright holder who places the Program under this License
 240may add an explicit geographical distribution limitation excluding
 241those countries, so that distribution is permitted only in or among
 242countries not thus excluded.  In such case, this License incorporates
 243the limitation as if written in the body of this License.
 244
 245  9. The Free Software Foundation may publish revised and/or new versions
 246of the General Public License from time to time.  Such new versions will
 247be similar in spirit to the present version, but may differ in detail to
 248address new problems or concerns.
 249
 250Each version is given a distinguishing version number.  If the Program
 251specifies a version number of this License which applies to it and "any
 252later version", you have the option of following the terms and conditions
 253either of that version or of any later version published by the Free
 254Software Foundation.  If the Program does not specify a version number of
 255this License, you may choose any version ever published by the Free Software
 256Foundation.
 257
 258  10. If you wish to incorporate parts of the Program into other free
 259programs whose distribution conditions are different, write to the author
 260to ask for permission.  For software which is copyrighted by the Free
 261Software Foundation, write to the Free Software Foundation; we sometimes
 262make exceptions for this.  Our decision will be guided by the two goals
 263of preserving the free status of all derivatives of our free software and
 264of 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
 269FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
 270OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
 271PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
 272OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 273MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
 274TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
 275PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
 276REPAIR OR CORRECTION.
 277
 278  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
 279WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
 280REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
 281INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
 282OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
 283TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
 284YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
 285PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
 286POSSIBILITY 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
 293possible use to the public, the best way to achieve this is to make it
 294free 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
 297to attach them to the start of each source file to most effectively
 298convey the exclusion of warranty; and each file should have at least
 299the "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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 317
 318
 319Also add information on how to contact you by electronic and paper mail.
 320
 321If the program is interactive, make it output a short notice like this
 322when 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
 329The hypothetical commands `show w' and `show c' should show the appropriate
 330parts of the General Public License.  Of course, the commands you use may
 331be called something other than `show w' and `show c'; they could even be
 332mouse-clicks or menu items--whatever suits your program.
 333
 334You should also get your employer (if you work as a programmer) or your
 335school, if any, to sign a "copyright disclaimer" for the program, if
 336necessary.  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
 344This General Public License does not permit incorporating your program into
 345proprietary programs.  If your program is a subroutine library, you may
 346consider it more useful to permit linking proprietary applications with the
 347library.  If this is what you want to do, use the GNU Library General
 348Public License instead of this License.
 349