some more infrastructure git-svn-id: svn://coreboot.org/openbios/fcode-utils@108 f158a5a8-5612-0410-a976-696ce0be7e32
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..8a6932a
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,341 @@
+
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
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+
+ Preamble
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+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
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+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) 19yy <name of author>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
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+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
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+ Gnomovision version 69, Copyright (C) 19yy name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
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+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/README b/README
new file mode 100644
index 0000000..47d50bd
--- /dev/null
+++ b/README
@@ -0,0 +1,16 @@
+This is the OpenBIOS FCODE suite.
+
+It consists of:
+
+- toke
+- detok
+- romheaders
+- localvalues
+
+NOTE: all parts of the OpenBIOS FCODE suite are GPL v2, except the localvalues
+implementation which is released under the Common Public License (CPL) version
+1.0 (see: http://www.opensource.org/licenses/cpl1.0.php)
+
+
+For information please contact info@coresystems.de
+
diff --git a/TODO b/TODO
new file mode 100644
index 0000000..71d08a9
--- /dev/null
+++ b/TODO
@@ -0,0 +1,298 @@
+fcode-utils/detok/decode.c
+ Line 46:
+ *
+ * Still to be done:
+ * Handling of indent-level is not correct. Branches should
+ * balance with their resolvers; constructs like do..loop
+ * case/of/endof/endcase are a few major examples.
+ * This will be tricky; the rules need to be carefully thought
+ * out, and the implementation might be more complex than
+ * at first meets the eye...
+ *
+
+ Line 280:
+ *
+ * Still to be done:
+ * More sophisticated error-checking for invalid offsets. Look
+ * at the type of branch, and what should be expected in the
+ * vicinity of the destination. (This might be best served
+ * by a separate routine).
+ * This might also help with handling the indent-level correctly...
+ * Also, if indentation were to be handled in this routine,
+ * there would be no need to return the value of the offset.
+ *
+
+
+fcode-utils/detok/pcihdr.c
+ Line 67:
+ *
+ * Still to be done:
+ * Print (as remarks) full descriptions of headers' fields
+ * Error check for wrong "Format"
+ * Skip past non-FCode blocks, thru multiple data-blocks
+ * Recognize PCI header in unexpected place or out-of-place
+ *
+
+ Line 130:
+ *
+ * Still to be done:
+ * Error-check; look for inconsistencies:
+ * Return a Negative Number if data-stream appears to be a PCI
+ * header, but has erroneous or inconsistent sub-field contents.
+ * Value and meaning of the Negative Number yet to be defined.
+ *
+
+ Line 188:
+ *
+ * Still to be done:
+ * Error-check; look for wrong "Code Type" or other inconsistencies:
+ * Return a Negative Number if data-stream appears to be a
+ * valid PCI Data Structure, but has erroneous or inconsistent
+ * sub-field contents.
+ * Value and meaning of the Negative Number yet to be defined.
+ * Skip past non-FCode data-blocks, even multiple blocks
+ *
+
+ Line 364:
+ *
+ * Still to be done:
+ * Handle error cases. At present, neither is_pci_header()
+ * nor is_pci_data_struct() returns a negative number,
+ * but when they are modified to do so, we must handle it.
+ *
+
+ Line 442:
+ *
+ * Still to be done:
+ * Come up with something more elegant for non-zero filler.
+ *
+
+
+fcode-utils/detok/printformats.c
+ Line 74:
+ *
+ * Still to be done:
+ * Define a routine, call it PrintComment , to print the given
+ * string surrounded by open-paren-space ... space-close-paren
+ * Define a single central routine, call it safe_malloc ,
+ * to do the test for null and print "No Memory" and exit.
+ * Define a single central routine, call it PrintError , to:
+ * Print the given error message
+ * Show the input file and line number
+ * Collect error-flags for failure-exit at end of operation.
+ *
+
+
+fcode-utils/toke/devnode.c
+ Line 67:
+ *
+ * Still to be done:
+ * Add a pair of fields to the data-structure for the Input File and
+ * Line Number where "finish-device" occurred. When a device-node
+ * is "finish"ed, do not delete it, but instead fill in those
+ * fields and the move the node to a separate linked-list.
+ * When looking whether a word exists in an ancestor-node, also
+ * check whether it was in a device-node that was finished and
+ * print both where it was started and where it was finished.
+ *
+
+
+fcode-utils/toke/emit.c
+ Line 34:
+ *
+ * Still to be done:
+ * Re-arrange routine and variable locations to clarify the
+ * functions of this file and its companion, stream.c
+ * This file should be concerned primarily with management
+ * of the Outputs; stream.c should be primarily concerned
+ * with management of the Inputs.
+ * Hard to justify, pragmatically, but will make for easier
+ * maintainability down the proverbial road...
+ *
+
+
+fcode-utils/toke/flowcontrol.c
+ Line 75:
+ *
+ * Still to be done:
+ * Correct analysis of Return-Stack usage around Flow-Control
+ * constructs, including within Do-Loops or before Loop
+ * Elements like I and J or UNLOOP or LEAVE.
+ * Similarly, Return-Stack usage around IF ... ELSE ... THEN
+ * statements needs analysis. For instance, the following:
+ *
+ * blablabla >R yadayada IF R> gubble ELSE flubble R> THEN
+ *
+ * is, in fact, correct, while something like:
+ *
+ * blablabla >R yadayada IF R> gubble THEN
+ *
+ * is an error.
+ *
+ * Implementing an analysis that would be sufficiently accurate
+ * to justify reporting an ERROR with certainty (rather than
+ * a mere WARNING speculatively) would probably require full
+ * coordination with management of Flow-Control constructs,
+ * and so is noted here.
+ *
+
+
+fcode-utils/toke/macros.c
+ Line 166:
+ *
+ * Still to be done:
+ * If an error is encountered during Macro evaluation, display
+ * supplemental information giving the name of the Macro
+ * being run, and the file and line number in which it was
+ * defined.
+ * This will require changes to the way user Macros are added
+ * and retained, and to the way error messages are displayed.
+ *
+
+
+fcode-utils/toke/nextfcode.c
+ Line 90:
+ *
+ * Still to be done:
+ * Detect and report when the Current Range stops overlapping
+ * one particular Range and starts overlapping another.
+ *
+
+
+fcode-utils/toke/scanner.c
+ Line 1046:
+ *
+ * Still to be done:
+ * Better protection against PC pointer-over-run past END.
+ * Currently, this works, but it's held together by threads:
+ * Because init_stream forces a null-byte at the end of
+ * the input buffer, parse_number() exits immediately upon
+ * encountering it. This situation could be covered more
+ * robustly...
+ *
+
+ Line 2192:
+ *
+ * Still to be done:
+ * Full detection of whether the Return-Stack has been cleared
+ * when required, including analysis of Return-Stack usage
+ * within Flow-Control constructs, and before Loop elements...
+ *
+
+ Line 2259:
+ *
+ * Still to be done:
+ * Correct analysis of Return-Stack usage around Flow-Control
+ * constructs. Consider, for instance, the following:
+ *
+ * blablabla >R yadayada IF R> gubble ELSE flubble R> THEN
+ *
+ * It is, in fact, correct, but the present scheme would
+ * tag it as a possible error. Conversely, something like:
+ *
+ * blablabla >R yadayada IF R> gubble THEN
+ *
+ * would not get tagged, even though it is actually an error.
+ *
+ * The current simple scheme also does not cover Return-Stack
+ * usage within Do-Loops or before Loop elements like I and
+ * J or UNLOOP or LEAVE. Implementing something like that
+ * would probably need to be integrated in with Flow-Control
+ * constructs, and will be noted in flowcontrol.c
+ *
+
+ Line 2323:
+ *
+ * Still to be done:
+ * Correct analysis of Return-Stack usage...
+ *
+
+ Line 3299:
+ *
+ * Still to be done:
+ * If the definer-name is not found, we might still look up
+ * the target name in the various vocabularies and use
+ * a phrase for those. E.g., if it is a valid token,
+ * we could say it's defined as a "primitive". (I'm
+ * not sure what we'd say about an FWord...)
+ *
+
+ Line 4617:
+ *
+ * Still to be done:
+ * Correct analysis of Return-Stack usage within Do-Loops
+ * or before Loop Elements like I and J or UNLOOP or LEAVE.
+ *
+
+
+fcode-utils/toke/stream.c
+ Line 60:
+ *
+ * Still to be done:
+ * Re-arrange routine and variable locations to clarify the
+ * functions of this file and its companion, emit.c
+ * This file should be concerned primarily with management
+ * of the Inputs; emit.c should be primarily concerned
+ * with management of the Outputs.
+ * Hard to justify, pragmatically, but will make for easier
+ * maintainability down the proverbial road...
+ *
+
+ Line 1070:
+ *
+ * Still to be done:
+ * Set a flag when carr-ret has been replaced by space;
+ * when a string crosses a line, if this flag is set,
+ * issue a warning that an extra space has been inserted.
+ *
+
+
+fcode-utils/toke/toke.c
+ Line 363:
+ *
+ * Still to be done:
+ * Devise a syntax to allow the command-line to specify multiple
+ * input files together with an output file name for each.
+ * Currently, the syntax allows only one output file name to be
+ * specified; when multiple input file names are specified,
+ * the specification of an output file name is disallowed,
+ * and only the default output file names are permitted.
+ * While this works around the immediate problem, a more
+ * elegant solution could be devised...
+ *
+
+
+fcode-utils/toke/usersymbols.c
+ Line 78:
+ *
+ * Still to be done:
+ * Convert the handling of user-defined symbols to the T.I.C.
+ * data-structure and its support routines. This should
+ * eliminate any further need of String-Substitution-type
+ * vocabularies. User-defined symbols will, however, still
+ * need to be a separate vocabulary from the Global, because
+ * they are required to stay in effect for the duration of
+ * the entire batch of tokenizations...
+ * (Afterthought: This is only true for user-defined symbols that
+ * were created on the command-line; if we ever allow symbols
+ * to be defined in the Source file, they should be as volatile
+ * as anything else that comes from a source file...
+ * Appending source-file-derived user-defined symbols to the Global
+ * Vocabulary could be a quasi-simple way to accomplish this.)
+ *
+
+ Line 246:
+ *
+ * Still to be done:
+ * Hook-in this routine to the processing of: ['] F['] H# FLOAD
+ * etc., and wherever else it might be needed or useful.
+ *
+
+ Line 316:
+ *
+ * Still to be done:
+ * Space the duplicate-name notation evenly; line it up past
+ * the longest name-with-value.
+ *
+
+
diff --git a/romheaders/COPYING b/romheaders/COPYING
new file mode 100644
index 0000000..8a6932a
--- /dev/null
+++ b/romheaders/COPYING
@@ -0,0 +1,341 @@
+
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.) You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
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+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+ To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have. You must make sure that they, too, receive or can get the
+source code. And you must show them these terms so they know their
+rights.
+
+ We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+ Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software. If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
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+
+ Finally, any free program is threatened constantly by software
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+
+ The precise terms and conditions for copying, distribution and
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+
+ GNU GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License. The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language. (Hereinafter, translation is included without limitation in
+the term "modification".) Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope. The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+ 1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+ 2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+ a) You must cause the modified files to carry prominent notices
+ stating that you changed the files and the date of any change.
+
+ b) You must cause any work that you distribute or publish, that in
+ whole or in part contains or is derived from the Program or any
+ part thereof, to be licensed as a whole at no charge to all third
+ parties under the terms of this License.
+
+ c) If the modified program normally reads commands interactively
+ when run, you must cause it, when started running for such
+ interactive use in the most ordinary way, to print or display an
+ announcement including an appropriate copyright notice and a
+ notice that there is no warranty (or else, saying that you provide
+ a warranty) and that users may redistribute the program under
+ these conditions, and telling the user how to view a copy of this
+ License. (Exception: if the Program itself is interactive but
+ does not normally print such an announcement, your work based on
+ the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole. If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works. But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+ 3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+ a) Accompany it with the complete corresponding machine-readable
+ source code, which must be distributed under the terms of Sections
+ 1 and 2 above on a medium customarily used for software interchange; or,
+
+ b) Accompany it with a written offer, valid for at least three
+ years, to give any third party, for a charge no more than your
+ cost of physically performing source distribution, a complete
+ machine-readable copy of the corresponding source code, to be
+ distributed under the terms of Sections 1 and 2 above on a medium
+ customarily used for software interchange; or,
+
+ c) Accompany it with the information you received as to the offer
+ to distribute corresponding source code. (This alternative is
+ allowed only for noncommercial distribution and only if you
+ received the program in object code or executable form with such
+ an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it. For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
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+
+If distribution of executable or object code is made by offering
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+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+ 4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License. Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+ 5. You are not required to accept this License, since you have not
+signed it. However, nothing else grants you permission to modify or
+distribute the Program or its derivative works. These actions are
+prohibited by law if you do not accept this License. Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+ 6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
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+these terms and conditions. You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
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+
+ 7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
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+may not distribute the Program at all. For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
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+
+It is not the purpose of this section to induce you to infringe any
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+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices. Many people have made
+generous contributions to the wide range of software distributed
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+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+ 8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded. In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+ 9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation. If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+ 10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission. For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this. Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+ NO WARRANTY
+
+ 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+ 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) 19yy <name of author>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+ Gnomovision version 69, Copyright (C) 19yy name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.