Support files larger than 2GiB, closes #61

PyInstaller 4.3 added support for CArchive sizes >2GiB & <4GiB

Details:
- https://pyinstaller.org/en/stable/CHANGES.html#id81
- https://github.com/pyinstaller/pyinstaller/commit/937d8a

README.md

@@ -2,7 +2,7 @@
 
 PyInstaller Extractor is a Python script to extract the contents of a PyInstaller generated executable file.
 
-The header of the pyc files are automatically fixed so that a Python bytecode decompiler will recognize it. The script can run on both Python 2.x and 3.x. PyInstaller versions 2.0, 2.1, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.5.1, 4.6, 4.7, 4.8, 4.9, 4.10, 5.0, 5.0.1, 5.1, 5.2, 5.3, 5.4, 5.4.1 are [tested](https://github.com/extremecoders-re/pyinstxtractor-test-binaries) & supported. Probably will work with other versions too.
+The header of the pyc files are automatically fixed so that a Python bytecode decompiler will recognize it. The script can run on both Python 2.x and 3.x. PyInstaller versions 2.0, 2.1, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.5.1, 4.6, 4.7, 4.8, 4.9, 4.10, 5.0, 5.0.1, 5.1, 5.2, 5.3, 5.4, 5.4.1, 5.5, 5.6, 5.6.1, 5.6.2 are [tested](https://github.com/pyinstxtractor/pyinstxtractor-test-binaries) & supported. Probably will work with other versions too.
 
 This project was originally hosted on [SourceForge](https://sourceforge.net/projects/pyinstallerextractor/).
 
@@ -35,7 +35,7 @@ X:\> python pyinstxtractor.py test.exe
 You can now use a python decompiler on the pyc files within the extracted directory
 ```
 
-After extracting the pyc's you can use a Python decompiler like [Uncompyle6](https://github.com/rocky/python-uncompyle6/).
+After extracting the pyc's you can use a Python decompiler like [Uncompyle6](https://github.com/rocky/python-uncompyle6/) and [Decompyle++](https://github.com/zrax/pycdc).
 
 ```
 X:\> uncompyle6.exe test.exe_extracted\test.pyc
@@ -43,7 +43,7 @@ X:\> uncompyle6.exe test.exe_extracted\PYZ-00.pyz_extracted\__future__.pyc
 ```
 ## Extracting Linux ELF binaries
 
-Pyinstxtractor can natively extract Linux ELF binaries without other requiring additional tools.
+Pyinstxtractor can natively extract Linux ELF binaries without requiring other tools.
 
 For other questions and information, please see the [Wiki](https://github.com/extremecoders-re/pyinstxtractor/wiki/Extracting-Linux-ELF-binaries) and the [FAQ](https://github.com/extremecoders-re/pyinstxtractor/wiki/Frequently-Asked-Questions)
 
@@ -51,7 +51,7 @@ For other questions and information, please see the [Wiki](https://github.com/ex
 
 - [pyinstxtractor-ng](https://github.com/pyinstxtractor/pyinstxtractor-ng): 
 A standalone binary version of pyinstxtractor. This tool doesn't require Python to run and can extract all supported versions of PyInstaller. It also supports encrypted pyinstaller executables.
-- [pyinstxtractor-web](https://pyinstxtractor-web.netlify.app): pyinstxtractor running in the web browser, powered by Go & GopherJS.
+- [pyinstxtractor-web](https://github.com/pyinstxtractor/pyinstxtractor-go): pyinstxtractor running in the web browser, powered by Go & GopherJS.
 
 ## License
 

pyinstxtractor.py

@@ -1,5 +1,5 @@
 """
-PyInstaller Extractor v2.0 (Supports pyinstaller 5.4.1, 5.4, 5.3, 5.2, 5.1, 5.0.1, 5.0, 4.10, 4.9, 4.8, 4.7, 4.6, 4.5.1, 4.5, 4.4, 4.3, 4.2, 4.1, 4.0, 3.6, 3.5, 3.4, 3.3, 3.2, 3.1, 3.0, 2.1, 2.0)
+PyInstaller Extractor v2.0 (Supports pyinstaller 5.6.2, 5.6.1, 5.6, 5.5, 5.4.1, 5.4, 5.3, 5.2, 5.1, 5.0.1, 5.0, 4.10, 4.9, 4.8, 4.7, 4.6, 4.5.1, 4.5, 4.4, 4.3, 4.2, 4.1, 4.0, 3.6, 3.5, 3.4, 3.3, 3.2, 3.1, 3.0, 2.1, 2.0)
 Author : Extreme Coders
 E-mail : extremecoders(at)hotmail(dot)com
 Web    : https://0xec.blogspot.com
@@ -192,7 +192,7 @@ class PyInstArchive:
 
                 # Read CArchive cookie
                 (magic, lengthofPackage, toc, tocLen, pyver, pylibname) = \
-                struct.unpack('!8siiii64s', self.fPtr.read(self.PYINST21_COOKIE_SIZE))
+                struct.unpack('!8sIIii64s', self.fPtr.read(self.PYINST21_COOKIE_SIZE))
 
         except:
             print('[!] Error : The file is not a pyinstaller archive')
@@ -224,11 +224,11 @@ class PyInstArchive:
         # Parse table of contents
         while parsedLen < self.tableOfContentsSize:
             (entrySize, ) = struct.unpack('!i', self.fPtr.read(4))
-            nameLen = struct.calcsize('!iiiiBc')
+            nameLen = struct.calcsize('!iIIIBc')
 
             (entryPos, cmprsdDataSize, uncmprsdDataSize, cmprsFlag, typeCmprsData, name) = \
             struct.unpack( \
-                '!iiiBc{0}s'.format(entrySize - nameLen), \
+                '!IIIBc{0}s'.format(entrySize - nameLen), \
                 self.fPtr.read(entrySize - 4))
 
             name = name.decode('utf-8').rstrip('\0')