python-lzo-1.08/0040755000175000001440000000000007515324556012316 5ustar mfxuserspython-lzo-1.08/NEWS0100644000175000001440000000101307515315442012777 0ustar mfxusers======================================================================= User visible changes for Python-LZO ======================================================================= Changes in 1.08 (17 Jul 2002) * build system updated to use distutils * all Python versions supported, tested with 1.5.2 up to 2.2.1 * requires LZO library v1.08 or newer * [info: version jumped from 1.00 to 1.08 to match the LZO version] Changes in 1.00 (21 Aug 1998) * first public release - requires LZO library v1.03 or newer python-lzo-1.08/Makefile0100644000175000001440000000130607515324043013742 0ustar mfxusers# # written by Markus F. X. J. Oberhumer # # to use a specific python version call # `make PYTHON=python2.2' # SHELL = /bin/sh PYTHON = python2.2 PYTHON = python all build: $(PYTHON) setup.py build test: build $(PYTHON) tests/test.py # (for Linux, needs GNU binutils) strip: build strip -p --strip-unneeded build/lib*/*.so chmod -x build/lib*/*.so install install_lib: $(PYTHON) setup.py $@ clean: -rm -rf build dist -rm -f *.pyc *.pyo */*.pyc */*.pyo -rm -f MANIFEST distclean: clean maintainer-clean: distclean dist sdist: distclean $(PYTHON) setup.py sdist .PHONY: all build test strip install install_lib clean distclean maintainer-clean dist sdist .NOEXPORT: python-lzo-1.08/tests/0040755000175000001440000000000007515324556013460 5ustar mfxuserspython-lzo-1.08/tests/test.py0100755000175000001440000000572207515270715015014 0ustar mfxusers#! /usr/bin/env python ## ## vi:ts=4:et ## ##---------------------------------------------------------------------------## ## ## This file is part of the LZO real-time data compression library. ## ## Copyright (C) 1998-2002 Markus Franz Xaver Johannes Oberhumer ## All Rights Reserved. ## ## The LZO library 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. ## ## The LZO library 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 the LZO library; see the file COPYING. ## If not, write to the Free Software Foundation, Inc., ## 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ## ## Markus F.X.J. Oberhumer ## ## http://www.oberhumer.com/opensource/lzo/ ## ##---------------------------------------------------------------------------## import sys, string # update sys.path when running in the build directory from util import get_sys_path sys.path = get_sys_path() import lzo # /*********************************************************************** # // a very simple test driver... # ************************************************************************/ def print_modinfo(): #print sys.modules mod = sys.modules['lzo'] #print mod d = mod.__dict__ for k in d.keys(): print k, d[k] def test(src, level=1): a0 = lzo.adler32(src) c = lzo.compress(src, level) u1 = lzo.decompress(c) a1 = lzo.adler32(u1) o = lzo.optimize(c) u2 = lzo.decompress(o) a2 = lzo.adler32(u2) if src != u1 or src != u2: raise lzo.error, "internal error 1" if a0 != a1 or a0 != a2: raise lzo.error, "internal error 2" print "compressed %6d -> %6d" % (len(src), len(c)) def main(args): # display version information and module documentation print "LZO version %s (0x%x), %s" % (lzo.LZO_VERSION_STRING, lzo.LZO_VERSION, lzo.LZO_VERSION_DATE) print lzo.__file__ print print lzo.__doc__ # display additional module information ## print dir(lzo) ## print_modinfo() # compress some simple strings test("aaaaaaaaaaaaaaaaaaaaaaaa") test("abcabcabcabcabcabcabcabc") test("abcabcabcabcabcabcabcabc", level=9) test(" " * 131072) test("") print "Simple compression test passed." # force an exception (because of invalid compressed data) assert issubclass(lzo.error, Exception) try: x = lzo.decompress("xx") except lzo.error, ex: ## print ex pass else: print "Exception handling does NOT work !" return 0 if __name__ == '__main__': sys.exit(main(sys.argv)) python-lzo-1.08/tests/util.py0100644000175000001440000000371407515303546015005 0ustar mfxusers## ## vi:ts=4:et ## ##---------------------------------------------------------------------------## ## ## This file is part of the LZO real-time data compression library. ## ## Copyright (C) 1998-2002 Markus Franz Xaver Johannes Oberhumer ## All Rights Reserved. ## ## The LZO library 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. ## ## The LZO library 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 the LZO library; see the file COPYING. ## If not, write to the Free Software Foundation, Inc., ## 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ## ## Markus F.X.J. Oberhumer ## ## http://www.oberhumer.com/opensource/lzo/ ## ##---------------------------------------------------------------------------## import os, sys from distutils.util import get_platform # # prepare sys.path in case we are still in the build directory # see also: distutils/command/build.py (build_platlib) # def get_sys_path(p=None): if p is None: p = sys.path p = p[:] p0 = "" if p: p0 = p[0] # plat = get_platform() plat_specifier = "%s-%s" % (plat, sys.version[:3]) ##print plat, plat_specifier # for prefix in (p0, os.curdir, os.pardir,): if not prefix: continue d = os.path.join(prefix, "build") for subdir in ("lib", "lib." + plat_specifier, "lib." + plat): dir = os.path.normpath(os.path.join(d, subdir)) if os.path.isdir(dir): if dir not in p: p.insert(1, dir) # return p python-lzo-1.08/README0100644000175000001440000000323707515315246013174 0ustar mfxusers Python-LZO -- Python bindings for LZO Copyright (c) 1996-2002 Markus F.X.J. Oberhumer http://www.oberhumer.com/opensource/lzo/ What is LZO ? ============= LZO is a portable lossless data compression library written in ANSI C. It offers pretty fast compression and *very* fast decompression. Decompression requires no memory. In addition there are slower compression levels achieving a quite competitive compression ratio while still decompressing at this very high speed. What is Python ? ================ Python is an interpreted object-oriented programming language, and is often compared to Tcl, Perl, Java or Scheme. To find out more, point your browser to http://www.python.org/ . What is Python-LZO ? ==================== Python-LZO provides Python bindings for LZO, i.e. you can access the LZO library from your Python scripts thereby compressing ordinary Python strings. Where's the documentation ? =========================== Python-LZO comes with built-in documentation which is accessible using `lzo.__doc__' and `lzo.func__doc__'. See "Chapter 3: Data Model" in the Python Reference Manual for more information. Additionally you should read the docs and study the example programs that ship with the LZO library. Really. Copyright ========= The LZO and Python-LZO algorithms and implementations are Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002 Markus Franz Xaver Johannes Oberhumer The LZO and Python-LZO algorithms and implementations are distributed under the terms of the GNU General Public License (GPL). See the file COPYING. python-lzo-1.08/PKG-INFO0100644000175000001440000000140207515324556013405 0ustar mfxusersMetadata-Version: 1.0 Name: python-lzo Version: 1.08 Summary: Python bindings for the LZO data compression library Home-page: http://www.oberhumer.com/opensource/lzo/ Author: Markus F.X.J. Oberhumer Author-email: markus@oberhumer.com License: GNU General Public License (GPL) Description: This module provides Python bindings for the LZO data compression library. LZO is a portable lossless data compression library written in ANSI C. It offers pretty fast compression and *very* fast decompression. Decompression requires no memory. In addition there are slower compression levels achieving a quite competitive compression ratio while still decompressing at this very high speed. Platform: All python-lzo-1.08/MANIFEST.in0100644000175000001440000000044507515301652014044 0ustar mfxusers# # MANIFEST.in # Manifest template for creating the source distribution. # # written by Markus F. X. J. Oberhumer # include COPYING include README include INSTALL include MANIFEST.in include Makefile include NEWS include lzomodule.c include setup.py include tests/*.py python-lzo-1.08/lzomodule.c0100644000175000001440000002606307515323645014476 0ustar mfxusers/* lzomodule.c -- Python bindings for the LZO compression library This file is part of the LZO real-time data compression library. Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer The LZO library 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. The LZO library 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 the LZO library; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Markus F.X.J. Oberhumer http://www.oberhumer.com/opensource/lzo/ */ #define MODULE_VERSION "1.08" #include #include /* Ensure we have updated versions */ #if !defined(PY_VERSION_HEX) || (PY_VERSION_HEX < 0x010502f0) # error "Need Python version 1.5.2 or greater" #endif #if !defined(LZO_VERSION) || (LZO_VERSION < 0x1070) # error "Need LZO version 1.07 or greater" #endif #undef UNUSED #define UNUSED(var) ((void)&var) static PyObject *LzoError; /*********************************************************************** // compress ************************************************************************/ static /* const */ char compress__doc__[] = "compress(string) -- Compress string using the default compression level, " "returning a string containing compressed data.\n" "compress(string, level) -- Compress string, using the chosen compression " "level (either 1 or 9). Return a string containing the compressed data.\n" ; static PyObject * compress(PyObject *dummy, PyObject *args) { PyObject *result_str; lzo_voidp wrkmem = NULL; const lzo_bytep in; lzo_bytep out; lzo_uint in_len; lzo_uint out_len; lzo_uint new_len; int len; int level = 1; int err; /* init */ UNUSED(dummy); if (!PyArg_ParseTuple(args, "s#|i", &in, &len, &level)) return NULL; if (len < 0) return NULL; in_len = len; out_len = in_len + in_len / 64 + 16 + 3; /* alloc buffers */ result_str = PyString_FromStringAndSize(NULL, 5 + out_len); if (result_str == NULL) return PyErr_NoMemory(); if (level == 1) wrkmem = (lzo_voidp) PyMem_Malloc(LZO1X_1_MEM_COMPRESS); else wrkmem = (lzo_voidp) PyMem_Malloc(LZO1X_999_MEM_COMPRESS); if (wrkmem == NULL) { Py_DECREF(result_str); return PyErr_NoMemory(); } /* compress */ out = (lzo_bytep) PyString_AsString(result_str); new_len = out_len; if (level == 1) { out[0] = 0xf0; err = lzo1x_1_compress(in, in_len, out+5, &new_len, wrkmem); } else { out[0] = 0xf1; err = lzo1x_999_compress(in, in_len, out+5, &new_len, wrkmem); } PyMem_Free(wrkmem); if (err != LZO_E_OK || new_len > out_len) { /* this should NEVER happen */ Py_DECREF(result_str); PyErr_Format(LzoError, "Error %i while compressing data", err); return NULL; } /* save uncompressed length */ out[1] = (unsigned char) ((in_len >> 24) & 0xff); out[2] = (unsigned char) ((in_len >> 16) & 0xff); out[3] = (unsigned char) ((in_len >> 8) & 0xff); out[4] = (unsigned char) ((in_len >> 0) & 0xff); /* return */ if (new_len != out_len) _PyString_Resize(&result_str, 5 + new_len); return result_str; } /*********************************************************************** // decompress ************************************************************************/ static /* const */ char decompress__doc__[] = "decompress(string) -- Decompress the data in string, returning a string containing the decompressed data.\n" ; static PyObject * decompress(PyObject *dummy, PyObject *args) { PyObject *result_str; const lzo_bytep in; lzo_bytep out; lzo_uint in_len; lzo_uint out_len; lzo_uint new_len; int len; int err; /* init */ UNUSED(dummy); if (!PyArg_ParseTuple(args, "s#", &in, &len)) return NULL; if (len < 5 + 3 || in[0] < 0xf0 || in[0] > 0xf1) goto header_error; in_len = len - 5; out_len = (in[1] << 24) | (in[2] << 16) | (in[3] << 8) | in[4]; if ((int)out_len < 0 || in_len > out_len + out_len / 64 + 16 + 3) goto header_error; /* alloc buffers */ result_str = PyString_FromStringAndSize(NULL, out_len); if (result_str == NULL) return PyErr_NoMemory(); /* decompress */ out = (lzo_bytep) PyString_AsString(result_str); new_len = out_len; err = lzo1x_decompress_safe(in+5, in_len, out, &new_len, NULL); if (err != LZO_E_OK || new_len != out_len) { Py_DECREF(result_str); PyErr_Format(LzoError, "Compressed data violation %i", err); return NULL; } /* success */ return result_str; header_error: PyErr_SetString(LzoError, "Header error - invalid compressed data"); return NULL; } /*********************************************************************** // optimize ************************************************************************/ static /* const */ char optimize__doc__[] = "optimize(string) -- Optimize the representation of the compressed data, returning a string containing the compressed data.\n" ; static PyObject * optimize(PyObject *dummy, PyObject *args) { PyObject *result_str; lzo_bytep in; lzo_bytep out; lzo_uint in_len; lzo_uint out_len; lzo_uint new_len; int len; int err; /* init */ UNUSED(dummy); if (!PyArg_ParseTuple(args, "s#", &in, &len)) return NULL; if (len < 5 + 3 || in[0] < 0xf0 || in[0] > 0xf1) goto header_error; in_len = len - 5; out_len = (in[1] << 24) | (in[2] << 16) | (in[3] << 8) | in[4]; if ((int)out_len < 0 || in_len > out_len + out_len / 64 + 16 + 3) goto header_error; /* alloc buffers */ result_str = PyString_FromStringAndSize(in, len); if (result_str == NULL) return PyErr_NoMemory(); out = (lzo_bytep) PyMem_Malloc(out_len > 0 ? out_len : 1); if (out == NULL) { Py_DECREF(result_str); return PyErr_NoMemory(); } /* optimize */ in = (lzo_bytep) PyString_AsString(result_str); new_len = out_len; err = lzo1x_optimize(in+5, in_len, out, &new_len, NULL); PyMem_Free(out); if (err != LZO_E_OK || new_len != out_len) { Py_DECREF(result_str); PyErr_Format(LzoError, "Compressed data violation %i", err); return NULL; } /* success */ return result_str; header_error: PyErr_SetString(LzoError, "Header error - invalid compressed data"); return NULL; } /*********************************************************************** // adler32 ************************************************************************/ static /* const */ char adler32__doc__[] = "adler32(string) -- Compute an Adler-32 checksum of string, using " "a default starting value, and returning an integer value.\n" "adler32(string, value) -- Compute an Adler-32 checksum of string, using " "the starting value provided, and returning an integer value\n" ; static PyObject * adler32(PyObject *dummy, PyObject *args) { char *buf; int len; unsigned long val = 1; /* == lzo_adler32(0, NULL, 0); */ UNUSED(dummy); if (!PyArg_ParseTuple(args, "s#|l", &buf, &len, &val)) return NULL; if (len > 0) val = lzo_adler32((lzo_uint32)val, (const lzo_bytep)buf, len); return PyInt_FromLong(val); } /*********************************************************************** // crc32 ************************************************************************/ static /* const */ char crc32__doc__[] = "crc32(string) -- Compute a CRC-32 checksum of string, using " "a default starting value, and returning an integer value.\n" "crc32(string, value) -- Compute a CRC-32 checksum of string, using " "the starting value provided, and returning an integer value.\n" ; static PyObject * crc32(PyObject *dummy, PyObject *args) { char *buf; int len; unsigned long val = 0; /* == lzo_crc32(0, NULL, 0); */ UNUSED(dummy); if (!PyArg_ParseTuple(args, "s#|l", &buf, &len, &val)) return NULL; if (len > 0) val = lzo_crc32((lzo_uint32)val, (const lzo_bytep)buf, len); return PyInt_FromLong(val); } /*********************************************************************** // main ************************************************************************/ static /* const */ PyMethodDef methods[] = { {"adler32", (PyCFunction)adler32, METH_VARARGS, adler32__doc__}, {"compress", (PyCFunction)compress, METH_VARARGS, compress__doc__}, {"crc32", (PyCFunction)crc32, METH_VARARGS, crc32__doc__}, {"decompress", (PyCFunction)decompress, METH_VARARGS, decompress__doc__}, {"optimize", (PyCFunction)optimize, METH_VARARGS, optimize__doc__}, {NULL, NULL, 0, NULL} }; static /* const */ char module_documentation[]= "The functions in this module allow compression and decompression " "using the LZO library.\n\n" "adler32(string) -- Compute an Adler-32 checksum.\n" "adler32(string, start) -- Compute an Adler-32 checksum using a given starting value.\n" "compress(string) -- Compress a string.\n" "compress(string, level) -- Compress a string with the given level of compression (either 1 or 9).\n" "crc32(string) -- Compute a CRC-32 checksum.\n" "crc32(string, start) -- Compute a CRC-32 checksum using a given starting value.\n" "decompress(string) -- Decompresses a compressed string.\n" "optimize(string) -- Optimize a compressed string.\n" ; #ifdef _MSC_VER _declspec(dllexport) #endif void initlzo(void) { PyObject *m, *d, *v; if (lzo_init() != LZO_E_OK) return; m = Py_InitModule4("lzo", methods, module_documentation, NULL, PYTHON_API_VERSION); d = PyModule_GetDict(m); LzoError = PyErr_NewException("lzo.error", NULL, NULL); PyDict_SetItemString(d, "error", LzoError); v = PyString_FromString("Markus F.X.J. Oberhumer "); PyDict_SetItemString(d, "__author__", v); Py_DECREF(v); v = PyString_FromString(MODULE_VERSION); PyDict_SetItemString(d, "__version__", v); Py_DECREF(v); v = PyInt_FromLong((long)lzo_version()); PyDict_SetItemString(d, "LZO_VERSION", v); Py_DECREF(v); v = PyString_FromString(lzo_version_string()); PyDict_SetItemString(d, "LZO_VERSION_STRING", v); Py_DECREF(v); v = PyString_FromString(lzo_version_date()); PyDict_SetItemString(d, "LZO_VERSION_DATE", v); Py_DECREF(v); } /* vi:ts=4:et */ python-lzo-1.08/setup.py0100644000175000001440000000471307515323372014025 0ustar mfxusers#! /usr/bin/env python # vi:ts=4:et import os, sys import distutils from distutils.core import setup from distutils.extension import Extension from distutils.util import split_quoted include_dirs = [] define_macros = [] library_dirs = [] libraries = [] runtime_library_dirs = [] extra_objects = [] extra_compile_args = [] extra_link_args = [] if sys.platform == "win32": # Windows users have to configure the LZO_DIR path parameter to match # their LZO source installation. The path set here is just an example # and thus unlikely to match your installation. LZO_DIR = r"c:\src\lzo-1.08" include_dirs.append(os.path.join(CURL_DIR, "include")) extra_objects.append(os.path.join(CURL_DIR, "lzo.lib")) else: libraries = ["lzo"] ##include_dirs.append("/usr/local/include") ##library_dirs.append("/usr/local/lib") ##runtime_library_dirs.append("/usr/local/lib") # Add extra compile flag for MacOS X if sys.platform[:-1] == "darwin": extra_link_args.append("-flat_namespace") ############################################################################### def get_kw(**kw): return kw ext = Extension( name="lzo", sources=["lzomodule.c"], include_dirs=include_dirs, define_macros=define_macros, library_dirs=library_dirs, libraries=libraries, runtime_library_dirs=runtime_library_dirs, extra_objects=extra_objects, extra_compile_args=extra_compile_args, extra_link_args=extra_link_args, ) ##print ext.__dict__; sys.exit(1) setup_args = get_kw( name="python-lzo", version="1.08", description="Python bindings for the LZO data compression library", author="Markus F.X.J. Oberhumer", author_email="markus@oberhumer.com", maintainer="Markus F.X.J. Oberhumer", maintainer_email="markus@oberhumer.com", url="http://www.oberhumer.com/opensource/lzo/", licence="GNU General Public License (GPL)", ext_modules=[ext], long_description=""" This module provides Python bindings for the LZO data compression library. LZO is a portable lossless data compression library written in ANSI C. It offers pretty fast compression and *very* fast decompression. Decompression requires no memory. In addition there are slower compression levels achieving a quite competitive compression ratio while still decompressing at this very high speed.""", ) ##print distutils.__version__ if distutils.__version__ >= "1.0.2": setup_args["platforms"] = "All" apply(setup, (), setup_args) python-lzo-1.08/INSTALL0100644000175000001440000000076407515271044013344 0ustar mfxusersInstallation ============ Quick Instructions ------------------ `make test install' or `make PYTHON=python2.2.1 test install' Short Instructions ------------------ 1. Build and install Python (1.5.2 or newer) 2. Build and install the LZO library (1.07 or newer) 3. Run `make' 4. Test the module by runnning `make test' 5. Optional: run `make strip' 6. Run `make install' to install the module (when logged in as root) See `setup.py' for more possible configuration details. python-lzo-1.08/COPYING0100644000175000001440000004325606567265720013363 0ustar mfxusers GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 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. 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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 control compilation and installation of the executable. However, as a special exception, the source code distributed need not include anything that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the operating system on which the executable runs, unless that component itself accompanies the executable. If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent 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 original licensor to copy, distribute or modify the Program subject to 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 this License. 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 otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you 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 circumstances. It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any 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 through that system in reliance on consistent application of that 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. Copyright (C) 19yy 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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. , 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.