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1 The GNU General Public License (GPL)
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2
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3 Version 2, June 1991
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4
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5 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
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6 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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7
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8 Everyone is permitted to copy and distribute verbatim copies of this license
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9 document, but changing it is not allowed.
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10
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11 Preamble
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12
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13 The licenses for most software are designed to take away your freedom to share
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14 and change it. By contrast, the GNU General Public License is intended to
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15 guarantee your freedom to share and change free software--to make sure the
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16 software is free for all its users. This General Public License applies to
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17 most of the Free Software Foundation's software and to any other program whose
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18 authors commit to using it. (Some other Free Software Foundation software is
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19 covered by the GNU Library General Public License instead.) You can apply it to
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20 your programs, too.
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21
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22 When we speak of free software, we are referring to freedom, not price. Our
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23 General Public Licenses are designed to make sure that you have the freedom to
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24 distribute copies of free software (and charge for this service if you wish),
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25 that you receive source code or can get it if you want it, that you can change
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26 the software or use pieces of it in new free programs; and that you know you
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27 can do these things.
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28
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29 To protect your rights, we need to make restrictions that forbid anyone to deny
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30 you these rights or to ask you to surrender the rights. These restrictions
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31 translate to certain responsibilities for you if you distribute copies of the
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32 software, or if you modify it.
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33
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34 For example, if you distribute copies of such a program, whether gratis or for
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35 a fee, you must give the recipients all the rights that you have. You must
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36 make sure that they, too, receive or can get the source code. And you must
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37 show them these terms so they know their rights.
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38
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39 We protect your rights with two steps: (1) copyright the software, and (2)
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40 offer you this license which gives you legal permission to copy, distribute
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41 and/or modify the software.
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42
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43 Also, for each author's protection and ours, we want to make certain that
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44 everyone understands that there is no warranty for this free software. If the
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45 software is modified by someone else and passed on, we want its recipients to
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46 know that what they have is not the original, so that any problems introduced
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47 by others will not reflect on the original authors' reputations.
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48
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49 Finally, any free program is threatened constantly by software patents. We
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50 wish to avoid the danger that redistributors of a free program will
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51 individually obtain patent licenses, in effect making the program proprietary.
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52 To prevent this, we have made it clear that any patent must be licensed for
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53 everyone's free use or not licensed at all.
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54
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55 The precise terms and conditions for copying, distribution and modification
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56 follow.
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57
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58 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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59
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60 0. This License applies to any program or other work which contains a notice
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61 placed by the copyright holder saying it may be distributed under the terms of
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62 this General Public License. The "Program", below, refers to any such program
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63 or work, and a "work based on the Program" means either the Program or any
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64 derivative work under copyright law: that is to say, a work containing the
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65 Program or a portion of it, either verbatim or with modifications and/or
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66 translated into another language. (Hereinafter, translation is included
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67 without limitation in the term "modification".) Each licensee is addressed as
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68 "you".
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69
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70 Activities other than copying, distribution and modification are not covered by
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71 this License; they are outside its scope. The act of running the Program is
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72 not restricted, and the output from the Program is covered only if its contents
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73 constitute a work based on the Program (independent of having been made by
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74 running the Program). Whether that is true depends on what the Program does.
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75
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76 1. You may copy and distribute verbatim copies of the Program's source code as
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77 you receive it, in any medium, provided that you conspicuously and
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78 appropriately publish on each copy an appropriate copyright notice and
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79 disclaimer of warranty; keep intact all the notices that refer to this License
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80 and to the absence of any warranty; and give any other recipients of the
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81 Program a copy of this License along with the Program.
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82
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83 You may charge a fee for the physical act of transferring a copy, and you may
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84 at your option offer warranty protection in exchange for a fee.
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85
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86 2. You may modify your copy or copies of the Program or any portion of it, thus
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87 forming a work based on the Program, and copy and distribute such modifications
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88 or work under the terms of Section 1 above, provided that you also meet all of
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89 these conditions:
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90
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91 a) You must cause the modified files to carry prominent notices stating
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92 that you changed the files and the date of any change.
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93
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94 b) You must cause any work that you distribute or publish, that in whole or
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95 in part contains or is derived from the Program or any part thereof, to be
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96 licensed as a whole at no charge to all third parties under the terms of
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97 this License.
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98
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99 c) If the modified program normally reads commands interactively when run,
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100 you must cause it, when started running for such interactive use in the
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101 most ordinary way, to print or display an announcement including an
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102 appropriate copyright notice and a notice that there is no warranty (or
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103 else, saying that you provide a warranty) and that users may redistribute
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104 the program under these conditions, and telling the user how to view a copy
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105 of this License. (Exception: if the Program itself is interactive but does
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106 not normally print such an announcement, your work based on the Program is
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107 not required to print an announcement.)
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108
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109 These requirements apply to the modified work as a whole. If identifiable
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110 sections of that work are not derived from the Program, and can be reasonably
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111 considered independent and separate works in themselves, then this License, and
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112 its terms, do not apply to those sections when you distribute them as separate
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113 works. But when you distribute the same sections as part of a whole which is a
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114 work based on the Program, the distribution of the whole must be on the terms
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115 of this License, whose permissions for other licensees extend to the entire
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116 whole, and thus to each and every part regardless of who wrote it.
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117
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118 Thus, it is not the intent of this section to claim rights or contest your
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119 rights to work written entirely by you; rather, the intent is to exercise the
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120 right to control the distribution of derivative or collective works based on
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121 the Program.
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122
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123 In addition, mere aggregation of another work not based on the Program with the
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124 Program (or with a work based on the Program) on a volume of a storage or
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125 distribution medium does not bring the other work under the scope of this
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126 License.
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127
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128 3. You may copy and distribute the Program (or a work based on it, under
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129 Section 2) in object code or executable form under the terms of Sections 1 and
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130 2 above provided that you also do one of the following:
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131
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132 a) Accompany it with the complete corresponding machine-readable source
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133 code, which must be distributed under the terms of Sections 1 and 2 above
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134 on a medium customarily used for software interchange; or,
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135
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136 b) Accompany it with a written offer, valid for at least three years, to
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137 give any third party, for a charge no more than your cost of physically
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138 performing source distribution, a complete machine-readable copy of the
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139 corresponding source code, to be distributed under the terms of Sections 1
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140 and 2 above on a medium customarily used for software interchange; or,
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141
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142 c) Accompany it with the information you received as to the offer to
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143 distribute corresponding source code. (This alternative is allowed only
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144 for noncommercial distribution and only if you received the program in
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145 object code or executable form with such an offer, in accord with
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146 Subsection b above.)
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147
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148 The source code for a work means the preferred form of the work for making
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149 modifications to it. For an executable work, complete source code means all
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150 the source code for all modules it contains, plus any associated interface
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151 definition files, plus the scripts used to control compilation and installation
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152 of the executable. However, as a special exception, the source code
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153 distributed need not include anything that is normally distributed (in either
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154 source or binary form) with the major components (compiler, kernel, and so on)
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155 of the operating system on which the executable runs, unless that component
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156 itself accompanies the executable.
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157
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158 If distribution of executable or object code is made by offering access to copy
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159 from a designated place, then offering equivalent access to copy the source
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160 code from the same place counts as distribution of the source code, even though
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161 third parties are not compelled to copy the source along with the object code.
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162
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163 4. You may not copy, modify, sublicense, or distribute the Program except as
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164 expressly provided under this License. Any attempt otherwise to copy, modify,
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165 sublicense or distribute the Program is void, and will automatically terminate
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166 your rights under this License. However, parties who have received copies, or
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167 rights, from you under this License will not have their licenses terminated so
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168 long as such parties remain in full compliance.
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169
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170 5. You are not required to accept this License, since you have not signed it.
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171 However, nothing else grants you permission to modify or distribute the Program
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172 or its derivative works. These actions are prohibited by law if you do not
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173 accept this License. Therefore, by modifying or distributing the Program (or
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174 any work based on the Program), you indicate your acceptance of this License to
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175 do so, and all its terms and conditions for copying, distributing or modifying
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176 the Program or works based on it.
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177
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178 6. Each time you redistribute the Program (or any work based on the Program),
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179 the recipient automatically receives a license from the original licensor to
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180 copy, distribute or modify the Program subject to these terms and conditions.
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181 You may not impose any further restrictions on the recipients' exercise of the
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182 rights granted herein. You are not responsible for enforcing compliance by
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183 third parties to this License.
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184
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185 7. If, as a consequence of a court judgment or allegation of patent
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186 infringement or for any other reason (not limited to patent issues), conditions
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187 are imposed on you (whether by court order, agreement or otherwise) that
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188 contradict the conditions of this License, they do not excuse you from the
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189 conditions of this License. If you cannot distribute so as to satisfy
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190 simultaneously your obligations under this License and any other pertinent
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191 obligations, then as a consequence you may not distribute the Program at all.
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192 For example, if a patent license would not permit royalty-free redistribution
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193 of the Program by all those who receive copies directly or indirectly through
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194 you, then the only way you could satisfy both it and this License would be to
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195 refrain entirely from distribution of the Program.
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196
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197 If any portion of this section is held invalid or unenforceable under any
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198 particular circumstance, the balance of the section is intended to apply and
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199 the section as a whole is intended to apply in other circumstances.
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200
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201 It is not the purpose of this section to induce you to infringe any patents or
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202 other property right claims or to contest validity of any such claims; this
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203 section has the sole purpose of protecting the integrity of the free software
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204 distribution system, which is implemented by public license practices. Many
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205 people have made generous contributions to the wide range of software
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206 distributed through that system in reliance on consistent application of that
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207 system; it is up to the author/donor to decide if he or she is willing to
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208 distribute software through any other system and a licensee cannot impose that
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209 choice.
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210
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211 This section is intended to make thoroughly clear what is believed to be a
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212 consequence of the rest of this License.
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213
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214 8. If the distribution and/or use of the Program is restricted in certain
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215 countries either by patents or by copyrighted interfaces, the original
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216 copyright holder who places the Program under this License may add an explicit
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217 geographical distribution limitation excluding those countries, so that
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218 distribution is permitted only in or among countries not thus excluded. In
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219 such case, this License incorporates the limitation as if written in the body
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220 of this License.
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221
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222 9. The Free Software Foundation may publish revised and/or new versions of the
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223 General Public License from time to time. Such new versions will be similar in
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224 spirit to the present version, but may differ in detail to address new problems
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225 or concerns.
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226
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227 Each version is given a distinguishing version number. If the Program
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228 specifies a version number of this License which applies to it and "any later
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229 version", you have the option of following the terms and conditions either of
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230 that version or of any later version published by the Free Software Foundation.
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231 If the Program does not specify a version number of this License, you may
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232 choose any version ever published by the Free Software Foundation.
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233
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234 10. If you wish to incorporate parts of the Program into other free programs
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235 whose distribution conditions are different, write to the author to ask for
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236 permission. For software which is copyrighted by the Free Software Foundation,
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237 write to the Free Software Foundation; we sometimes make exceptions for this.
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238 Our decision will be guided by the two goals of preserving the free status of
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239 all derivatives of our free software and of promoting the sharing and reuse of
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240 software generally.
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241
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242 NO WARRANTY
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243
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244 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR
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245 THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE
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246 STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE
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247 PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
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248 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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249 FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
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250 PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE,
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251 YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
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252
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253 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL
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254 ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE
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255 PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
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256 GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR
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257 INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA
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258 BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
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259 FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER
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260 OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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261
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262 END OF TERMS AND CONDITIONS
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263
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264 How to Apply These Terms to Your New Programs
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265
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266 If you develop a new program, and you want it to be of the greatest possible
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267 use to the public, the best way to achieve this is to make it free software
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268 which everyone can redistribute and change under these terms.
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269
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270 To do so, attach the following notices to the program. It is safest to attach
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271 them to the start of each source file to most effectively convey the exclusion
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272 of warranty; and each file should have at least the "copyright" line and a
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273 pointer to where the full notice is found.
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274
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275 One line to give the program's name and a brief idea of what it does.
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276
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277 Copyright (C) <year> <name of author>
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278
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279 This program is free software; you can redistribute it and/or modify it
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280 under the terms of the GNU General Public License as published by the Free
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281 Software Foundation; either version 2 of the License, or (at your option)
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282 any later version.
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283
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284 This program is distributed in the hope that it will be useful, but WITHOUT
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285 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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286 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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287 more details.
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288
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289 You should have received a copy of the GNU General Public License along
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290 with this program; if not, write to the Free Software Foundation, Inc., 59
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291 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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292
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293 Also add information on how to contact you by electronic and paper mail.
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294
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295 If the program is interactive, make it output a short notice like this when it
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296 starts in an interactive mode:
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297
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298 Gnomovision version 69, Copyright (C) year name of author Gnomovision comes
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299 with ABSOLUTELY NO WARRANTY; for details type 'show w'. This is free
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300 software, and you are welcome to redistribute it under certain conditions;
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301 type 'show c' for details.
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302
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303 The hypothetical commands 'show w' and 'show c' should show the appropriate
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304 parts of the General Public License. Of course, the commands you use may be
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305 called something other than 'show w' and 'show c'; they could even be
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306 mouse-clicks or menu items--whatever suits your program.
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307
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308 You should also get your employer (if you work as a programmer) or your school,
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309 if any, to sign a "copyright disclaimer" for the program, if necessary. Here
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310 is a sample; alter the names:
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311
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312 Yoyodyne, Inc., hereby disclaims all copyright interest in the program
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313 'Gnomovision' (which makes passes at compilers) written by James Hacker.
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314
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315 signature of Ty Coon, 1 April 1989
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316
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317 Ty Coon, President of Vice
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318
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319 This General Public License does not permit incorporating your program into
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320 proprietary programs. If your program is a subroutine library, you may
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321 consider it more useful to permit linking proprietary applications with the
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322 library. If this is what you want to do, use the GNU Library General Public
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323 License instead of this License.
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324
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325
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326 "CLASSPATH" EXCEPTION TO THE GPL
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327
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2220
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328 Certain source files distributed by Oracle America and/or its affiliates are
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329 subject to the following clarification and special exception to the GPL, but
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330 only where Oracle has expressly included in the particular source file's header
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331 the words "Oracle designates this particular file as subject to the "Classpath"
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332 exception as provided by Oracle in the LICENSE file that accompanied this code."
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0
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333
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334 Linking this library statically or dynamically with other modules is making
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335 a combined work based on this library. Thus, the terms and conditions of
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336 the GNU General Public License cover the whole combination.
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337
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338 As a special exception, the copyright holders of this library give you
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339 permission to link this library with independent modules to produce an
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340 executable, regardless of the license terms of these independent modules,
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341 and to copy and distribute the resulting executable under terms of your
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342 choice, provided that you also meet, for each linked independent module,
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343 the terms and conditions of the license of that module. An independent
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344 module is a module which is not derived from or based on this library. If
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345 you modify this library, you may extend this exception to your version of
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346 the library, but you are not obligated to do so. If you do not wish to do
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347 so, delete this exception statement from your version.
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