gpl.c

一个linux下的二进制文件工具

#include <stdio.h>
#include <stdlib.h>
void warte()
{
        char b[2];
        fprintf(stderr,"...Please press <Enter> to read on...");
        fgets(b,sizeof(b),stdin);
}

void print_gpl()
{
printf("		    GNU GENERAL PUBLIC LICENSE\n");
printf("		       Version 2, June 1991\n");
printf("\n");
printf(" Copyright (C) 1989, 1991 Free Software Foundation, Inc.\n");
printf("                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\n");
printf(" Everyone is permitted to copy and distribute verbatim copies\n");
printf(" of this license document, but changing it is not allowed.\n");
printf("\n");
printf("			    Preamble\n");
printf("\n");
printf("  The licenses for most software are designed to take away your\n");
printf("freedom to share and change it.  By contrast, the GNU General Public\n");
printf("License is intended to guarantee your freedom to share and change free\n");
printf("software--to make sure the software is free for all its users.  This\n");
printf("General Public License applies to most of the Free Software\n");
printf("Foundation's software and to any other program whose authors commit to\n");
printf("using it.  (Some other Free Software Foundation software is covered by\n");
printf("the GNU Library General Public License instead.)  You can apply it to\n");
printf("your programs, too.\n");
printf("\n");
printf("  When we speak of free software, we are referring to freedom, not\n");
printf("price.  Our General Public Licenses are designed to make sure that you\n");
printf("have the freedom to distribute copies of free software (and charge for\n");
printf("this service if you wish), that you receive source code or can get it\n");
warte();
printf("if you want it, that you can change the software or use pieces of it\n");
printf("in new free programs; and that you know you can do these things.\n");
printf("\n");
printf("  To protect your rights, we need to make restrictions that forbid\n");
printf("anyone to deny you these rights or to ask you to surrender the rights.\n");
printf("These restrictions translate to certain responsibilities for you if you\n");
printf("distribute copies of the software, or if you modify it.\n");
printf("\n");
printf("  For example, if you distribute copies of such a program, whether\n");
printf("gratis or for a fee, you must give the recipients all the rights that\n");
printf("you have.  You must make sure that they, too, receive or can get the\n");
printf("source code.  And you must show them these terms so they know their\n");
printf("rights.\n");
printf("\n");
printf("  We protect your rights with two steps: (1) copyright the software, and\n");
printf("(2) offer you this license which gives you legal permission to copy,\n");
printf("distribute and/or modify the software.\n");
printf("\n");
printf("  Also, for each author's protection and ours, we want to make certain\n");
printf("that everyone understands that there is no warranty for this free\n");
printf("software.  If the software is modified by someone else and passed on, we\n");
printf("want its recipients to know that what they have is not the original, so\n");
printf("that any problems introduced by others will not reflect on the original\n");
printf("authors' reputations.\n");
warte();
printf("\n");
printf("  Finally, any free program is threatened constantly by software\n");
printf("patents.  We wish to avoid the danger that redistributors of a free\n");
printf("program will individually obtain patent licenses, in effect making the\n");
printf("program proprietary.  To prevent this, we have made it clear that any\n");
printf("patent must be licensed for everyone's free use or not licensed at all.\n");
printf("\n");
printf("  The precise terms and conditions for copying, distribution and\n");
printf("modification follow.\n");
printf("		    GNU GENERAL PUBLIC LICENSE\n");
printf("   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION\n");
printf("\n");
printf("  0. This License applies to any program or other work which contains\n");
printf("a notice placed by the copyright holder saying it may be distributed\n");
printf("under the terms of this General Public License.  The \"Program\", below,\n");
printf("refers to any such program or work, and a \"work based on the Program\"\n");
printf("means either the Program or any derivative work under copyright law:\n");
printf("that is to say, a work containing the Program or a portion of it,\n");
printf("either verbatim or with modifications and/or translated into another\n");
printf("language.  (Hereinafter, translation is included without limitation in\n");
printf("the term \"modification\".)  Each licensee is addressed as \"you\".\n");
printf("\n");
warte();
printf("Activities other than copying, distribution and modification are not\n");
printf("covered by this License; they are outside its scope.  The act of\n");
printf("running the Program is not restricted, and the output from the Program\n");
printf("is covered only if its contents constitute a work based on the\n");
printf("Program (independent of having been made by running the Program).\n");
printf("Whether that is true depends on what the Program does.\n");
printf("\n");
printf("  1. You may copy and distribute verbatim copies of the Program's\n");
printf("source code as you receive it, in any medium, provided that you\n");
printf("conspicuously and appropriately publish on each copy an appropriate\n");
printf("copyright notice and disclaimer of warranty; keep intact all the\n");
printf("notices that refer to this License and to the absence of any warranty;\n");
printf("and give any other recipients of the Program a copy of this License\n");
printf("along with the Program.\n");
printf("\n");
printf("You may charge a fee for the physical act of transferring a copy, and\n");
printf("you may at your option offer warranty protection in exchange for a fee.\n");
printf("\n");
printf("  2. You may modify your copy or copies of the Program or any portion\n");
printf("of it, thus forming a work based on the Program, and copy and\n");
printf("distribute such modifications or work under the terms of Section 1\n");
printf("above, provided that you also meet all of these conditions:\n");
printf("\n");
printf("    a) You must cause the modified files to carry prominent notices\n");
warte();
printf("    stating that you changed the files and the date of any change.\n");
printf("\n");
printf("    b) You must cause any work that you distribute or publish, that in\n");
printf("    whole or in part contains or is derived from the Program or any\n");
printf("    part thereof, to be licensed as a whole at no charge to all third\n");
printf("    parties under the terms of this License.\n");
printf("\n");
printf("    c) If the modified program normally reads commands interactively\n");
printf("    when run, you must cause it, when started running for such\n");
printf("    interactive use in the most ordinary way, to print or display an\n");
printf("    announcement including an appropriate copyright notice and a\n");
printf("    notice that there is no warranty (or else, saying that you provide\n");
printf("    a warranty) and that users may redistribute the program under\n");
printf("    these conditions, and telling the user how to view a copy of this\n");
printf("    License.  (Exception: if the Program itself is interactive but\n");
printf("    does not normally print such an announcement, your work based on\n");
printf("    the Program is not required to print an announcement.)\n");
printf("These requirements apply to the modified work as a whole.  If\n");
printf("identifiable sections of that work are not derived from the Program,\n");
printf("and can be reasonably considered independent and separate works in\n");
printf("themselves, then this License, and its terms, do not apply to those\n");
printf("sections when you distribute them as separate works.  But when you\n");
printf("distribute the same sections as part of a whole which is a work based\n");
printf("on the Program, the distribution of the whole must be on the terms of\n");
warte();
printf("this License, whose permissions for other licensees extend to the\n");
printf("entire whole, and thus to each and every part regardless of who wrote it.\n");
printf("\n");
printf("Thus, it is not the intent of this section to claim rights or contest\n");
printf("your rights to work written entirely by you; rather, the intent is to\n");
printf("exercise the right to control the distribution of derivative or\n");
printf("collective works based on the Program.\n");
printf("\n");
printf("In addition, mere aggregation of another work not based on the Program\n");
printf("with the Program (or with a work based on the Program) on a volume of\n");
printf("a storage or distribution medium does not bring the other work under\n");
printf("the scope of this License.\n");
printf("\n");
printf("  3. You may copy and distribute the Program (or a work based on it,\n");
printf("under Section 2) in object code or executable form under the terms of\n");
printf("Sections 1 and 2 above provided that you also do one of the following:\n");
printf("\n");
printf("    a) Accompany it with the complete corresponding machine-readable\n");
printf("    source code, which must be distributed under the terms of Sections\n");
printf("    1 and 2 above on a medium customarily used for software interchange; or,\n");
printf("\n");
printf("    b) Accompany it with a written offer, valid for at least three\n");
printf("    years, to give any third party, for a charge no more than your\n");
warte();
printf("    cost of physically performing source distribution, a complete\n");
printf("    machine-readable copy of the corresponding source code, to be\n");
printf("    distributed under the terms of Sections 1 and 2 above on a medium\n");
printf("    customarily used for software interchange; or,\n");
printf("\n");
printf("    c) Accompany it with the information you received as to the offer\n");
printf("    to distribute corresponding source code.  (This alternative is\n");
printf("    allowed only for noncommercial distribution and only if you\n");
printf("    received the program in object code or executable form with such\n");
printf("    an offer, in accord with Subsection b above.)\n");
printf("\n");
printf("The source code for a work means the preferred form of the work for\n");
printf("making modifications to it.  For an executable work, complete source\n");
printf("code means all the source code for all modules it contains, plus any\n");
printf("associated interface definition files, plus the scripts used to\n");
printf("control compilation and installation of the executable.  However, as a\n");
printf("special exception, the source code distributed need not include\n");
printf("anything that is normally distributed (in either source or binary\n");
printf("form) with the major components (compiler, kernel, and so on) of the\n");
printf("operating system on which the executable runs, unless that component\n");
printf("itself accompanies the executable.\n");
printf("\n");
printf("If distribution of executable or object code is made by offering\n");
warte();
printf("access to copy from a designated place, then offering equivalent\n");
printf("access to copy the source code from the same place counts as\n");
printf("distribution of the source code, even though third parties are not\n");
printf("compelled to copy the source along with the object code.\n");
printf("  4. You may not copy, modify, sublicense, or distribute the Program\n");
printf("except as expressly provided under this License.  Any attempt\n");
printf("otherwise to copy, modify, sublicense or distribute the Program is\n");
printf("void, and will automatically terminate your rights under this License.\n");