kaitai: adjustments and rearrangements for python2/3 compat

1 files changed, 122 insertions, 0 deletions

diff --git a/python/examples/kaitai/dos_mz.py b/python/examples/kaitai/dos_mz.py
new file mode 100644
index 00000000..8ad248e7
--- /dev/null
+++ b/python/examples/kaitai/dos_mz.py
@@ -0,0 +1,122 @@
+# This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild
+
+from pkg_resources import parse_version
+from .kaitaistruct import __version__ as ks_version, KaitaiStruct, KaitaiStream, BytesIO
+import collections
+
+
+if parse_version(ks_version) < parse_version('0.7'):
+    raise Exception("Incompatible Kaitai Struct Python API: 0.7 or later is required, but you have %s" % (ks_version))
+
+class DosMz(KaitaiStruct):
+    """DOS MZ file format is a traditional format for executables in MS-DOS
+    environment. Many modern formats (i.e. Windows PE) still maintain
+    compatibility stub with this format.
+    
+    As opposed to .com file format (which basically sports one 64K code
+    segment of raw CPU instructions), DOS MZ .exe file format allowed
+    more flexible memory management, loading of larger programs and
+    added support for relocations.
+    """
+    SEQ_FIELDS = ["hdr", "mz_header2", "relocations", "body"]
+    def __init__(self, _io, _parent=None, _root=None):
+        self._io = _io
+        self._parent = _parent
+        self._root = _root if _root else self
+        self._debug = collections.defaultdict(dict)
+
+    def _read(self):
+        self._debug['hdr']['start'] = self._io.pos()
+        self.hdr = self._root.MzHeader(self._io, self, self._root)
+        self.hdr._read()
+        self._debug['hdr']['end'] = self._io.pos()
+        self._debug['mz_header2']['start'] = self._io.pos()
+        self.mz_header2 = self._io.read_bytes((self.hdr.ofs_relocations - 28))
+        self._debug['mz_header2']['end'] = self._io.pos()
+        self._debug['relocations']['start'] = self._io.pos()
+        self.relocations = [None] * (self.hdr.num_relocations)
+        for i in range(self.hdr.num_relocations):
+            if not 'arr' in self._debug['relocations']:
+                self._debug['relocations']['arr'] = []
+            self._debug['relocations']['arr'].append({'start': self._io.pos()})
+            _t_relocations = self._root.Relocation(self._io, self, self._root)
+            _t_relocations._read()
+            self.relocations[i] = _t_relocations
+            self._debug['relocations']['arr'][i]['end'] = self._io.pos()
+
+        self._debug['relocations']['end'] = self._io.pos()
+        self._debug['body']['start'] = self._io.pos()
+        self.body = self._io.read_bytes_full()
+        self._debug['body']['end'] = self._io.pos()
+
+    class MzHeader(KaitaiStruct):
+        SEQ_FIELDS = ["magic", "last_page_extra_bytes", "num_pages", "num_relocations", "header_size", "min_allocation", "max_allocation", "initial_ss", "initial_sp", "checksum", "initial_ip", "initial_cs", "ofs_relocations", "overlay_id"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['magic']['start'] = self._io.pos()
+            self.magic = self._io.read_bytes(2)
+            self._debug['magic']['end'] = self._io.pos()
+            self._debug['last_page_extra_bytes']['start'] = self._io.pos()
+            self.last_page_extra_bytes = self._io.read_u2le()
+            self._debug['last_page_extra_bytes']['end'] = self._io.pos()
+            self._debug['num_pages']['start'] = self._io.pos()
+            self.num_pages = self._io.read_u2le()
+            self._debug['num_pages']['end'] = self._io.pos()
+            self._debug['num_relocations']['start'] = self._io.pos()
+            self.num_relocations = self._io.read_u2le()
+            self._debug['num_relocations']['end'] = self._io.pos()
+            self._debug['header_size']['start'] = self._io.pos()
+            self.header_size = self._io.read_u2le()
+            self._debug['header_size']['end'] = self._io.pos()
+            self._debug['min_allocation']['start'] = self._io.pos()
+            self.min_allocation = self._io.read_u2le()
+            self._debug['min_allocation']['end'] = self._io.pos()
+            self._debug['max_allocation']['start'] = self._io.pos()
+            self.max_allocation = self._io.read_u2le()
+            self._debug['max_allocation']['end'] = self._io.pos()
+            self._debug['initial_ss']['start'] = self._io.pos()
+            self.initial_ss = self._io.read_u2le()
+            self._debug['initial_ss']['end'] = self._io.pos()
+            self._debug['initial_sp']['start'] = self._io.pos()
+            self.initial_sp = self._io.read_u2le()
+            self._debug['initial_sp']['end'] = self._io.pos()
+            self._debug['checksum']['start'] = self._io.pos()
+            self.checksum = self._io.read_u2le()
+            self._debug['checksum']['end'] = self._io.pos()
+            self._debug['initial_ip']['start'] = self._io.pos()
+            self.initial_ip = self._io.read_u2le()
+            self._debug['initial_ip']['end'] = self._io.pos()
+            self._debug['initial_cs']['start'] = self._io.pos()
+            self.initial_cs = self._io.read_u2le()
+            self._debug['initial_cs']['end'] = self._io.pos()
+            self._debug['ofs_relocations']['start'] = self._io.pos()
+            self.ofs_relocations = self._io.read_u2le()
+            self._debug['ofs_relocations']['end'] = self._io.pos()
+            self._debug['overlay_id']['start'] = self._io.pos()
+            self.overlay_id = self._io.read_u2le()
+            self._debug['overlay_id']['end'] = self._io.pos()
+
+
+    class Relocation(KaitaiStruct):
+        SEQ_FIELDS = ["ofs", "seg"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['ofs']['start'] = self._io.pos()
+            self.ofs = self._io.read_u2le()
+            self._debug['ofs']['end'] = self._io.pos()
+            self._debug['seg']['start'] = self._io.pos()
+            self.seg = self._io.read_u2le()
+            self._debug['seg']['end'] = self._io.pos()
+
+
+