kaitai: adjustments and rearrangements for python2/3 compat

1 files changed, 193 insertions, 0 deletions

diff --git a/python/examples/kaitai/apm_partition_table.py b/python/examples/kaitai/apm_partition_table.py
new file mode 100644
index 00000000..744a085c
--- /dev/null
+++ b/python/examples/kaitai/apm_partition_table.py
@@ -0,0 +1,193 @@
+# 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 ApmPartitionTable(KaitaiStruct):
+    """
+    .. seealso::
+       Specification taken from https://en.wikipedia.org/wiki/Apple_Partition_Map
+    """
+    SEQ_FIELDS = []
+    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):
+        pass
+
+    class PartitionEntry(KaitaiStruct):
+        SEQ_FIELDS = ["magic", "reserved_1", "number_of_partitions", "partition_start", "partition_size", "partition_name", "partition_type", "data_start", "data_size", "partition_status", "boot_code_start", "boot_code_size", "boot_loader_address", "reserved_2", "boot_code_entry", "reserved_3", "boot_code_cksum", "processor_type"]
+        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.ensure_fixed_contents(b"\x50\x4D")
+            self._debug['magic']['end'] = self._io.pos()
+            self._debug['reserved_1']['start'] = self._io.pos()
+            self.reserved_1 = self._io.read_bytes(2)
+            self._debug['reserved_1']['end'] = self._io.pos()
+            self._debug['number_of_partitions']['start'] = self._io.pos()
+            self.number_of_partitions = self._io.read_u4be()
+            self._debug['number_of_partitions']['end'] = self._io.pos()
+            self._debug['partition_start']['start'] = self._io.pos()
+            self.partition_start = self._io.read_u4be()
+            self._debug['partition_start']['end'] = self._io.pos()
+            self._debug['partition_size']['start'] = self._io.pos()
+            self.partition_size = self._io.read_u4be()
+            self._debug['partition_size']['end'] = self._io.pos()
+            self._debug['partition_name']['start'] = self._io.pos()
+            self.partition_name = (KaitaiStream.bytes_terminate(self._io.read_bytes(32), 0, False)).decode(u"ascii")
+            self._debug['partition_name']['end'] = self._io.pos()
+            self._debug['partition_type']['start'] = self._io.pos()
+            self.partition_type = (KaitaiStream.bytes_terminate(self._io.read_bytes(32), 0, False)).decode(u"ascii")
+            self._debug['partition_type']['end'] = self._io.pos()
+            self._debug['data_start']['start'] = self._io.pos()
+            self.data_start = self._io.read_u4be()
+            self._debug['data_start']['end'] = self._io.pos()
+            self._debug['data_size']['start'] = self._io.pos()
+            self.data_size = self._io.read_u4be()
+            self._debug['data_size']['end'] = self._io.pos()
+            self._debug['partition_status']['start'] = self._io.pos()
+            self.partition_status = self._io.read_u4be()
+            self._debug['partition_status']['end'] = self._io.pos()
+            self._debug['boot_code_start']['start'] = self._io.pos()
+            self.boot_code_start = self._io.read_u4be()
+            self._debug['boot_code_start']['end'] = self._io.pos()
+            self._debug['boot_code_size']['start'] = self._io.pos()
+            self.boot_code_size = self._io.read_u4be()
+            self._debug['boot_code_size']['end'] = self._io.pos()
+            self._debug['boot_loader_address']['start'] = self._io.pos()
+            self.boot_loader_address = self._io.read_u4be()
+            self._debug['boot_loader_address']['end'] = self._io.pos()
+            self._debug['reserved_2']['start'] = self._io.pos()
+            self.reserved_2 = self._io.read_bytes(4)
+            self._debug['reserved_2']['end'] = self._io.pos()
+            self._debug['boot_code_entry']['start'] = self._io.pos()
+            self.boot_code_entry = self._io.read_u4be()
+            self._debug['boot_code_entry']['end'] = self._io.pos()
+            self._debug['reserved_3']['start'] = self._io.pos()
+            self.reserved_3 = self._io.read_bytes(4)
+            self._debug['reserved_3']['end'] = self._io.pos()
+            self._debug['boot_code_cksum']['start'] = self._io.pos()
+            self.boot_code_cksum = self._io.read_u4be()
+            self._debug['boot_code_cksum']['end'] = self._io.pos()
+            self._debug['processor_type']['start'] = self._io.pos()
+            self.processor_type = (KaitaiStream.bytes_terminate(self._io.read_bytes(16), 0, False)).decode(u"ascii")
+            self._debug['processor_type']['end'] = self._io.pos()
+
+        @property
+        def partition(self):
+            if hasattr(self, '_m_partition'):
+                return self._m_partition if hasattr(self, '_m_partition') else None
+
+            if (self.partition_status & 1) != 0:
+                io = self._root._io
+                _pos = io.pos()
+                io.seek((self.partition_start * self._root.sector_size))
+                self._debug['_m_partition']['start'] = io.pos()
+                self._m_partition = io.read_bytes((self.partition_size * self._root.sector_size))
+                self._debug['_m_partition']['end'] = io.pos()
+                io.seek(_pos)
+
+            return self._m_partition if hasattr(self, '_m_partition') else None
+
+        @property
+        def data(self):
+            if hasattr(self, '_m_data'):
+                return self._m_data if hasattr(self, '_m_data') else None
+
+            io = self._root._io
+            _pos = io.pos()
+            io.seek((self.data_start * self._root.sector_size))
+            self._debug['_m_data']['start'] = io.pos()
+            self._m_data = io.read_bytes((self.data_size * self._root.sector_size))
+            self._debug['_m_data']['end'] = io.pos()
+            io.seek(_pos)
+            return self._m_data if hasattr(self, '_m_data') else None
+
+        @property
+        def boot_code(self):
+            if hasattr(self, '_m_boot_code'):
+                return self._m_boot_code if hasattr(self, '_m_boot_code') else None
+
+            io = self._root._io
+            _pos = io.pos()
+            io.seek((self.boot_code_start * self._root.sector_size))
+            self._debug['_m_boot_code']['start'] = io.pos()
+            self._m_boot_code = io.read_bytes(self.boot_code_size)
+            self._debug['_m_boot_code']['end'] = io.pos()
+            io.seek(_pos)
+            return self._m_boot_code if hasattr(self, '_m_boot_code') else None
+
+
+    @property
+    def sector_size(self):
+        """0x200 (512) bytes for disks, 0x1000 (4096) bytes is not supported by APM
+        0x800 (2048) bytes for CDROM
+        """
+        if hasattr(self, '_m_sector_size'):
+            return self._m_sector_size if hasattr(self, '_m_sector_size') else None
+
+        self._m_sector_size = 512
+        return self._m_sector_size if hasattr(self, '_m_sector_size') else None
+
+    @property
+    def partition_lookup(self):
+        """Every partition entry contains the number of partition entries.
+        We parse the first entry, to know how many to parse, including the first one.
+        No logic is given what to do if other entries have a different number.
+        """
+        if hasattr(self, '_m_partition_lookup'):
+            return self._m_partition_lookup if hasattr(self, '_m_partition_lookup') else None
+
+        io = self._root._io
+        _pos = io.pos()
+        io.seek(self._root.sector_size)
+        self._debug['_m_partition_lookup']['start'] = io.pos()
+        self._raw__m_partition_lookup = io.read_bytes(self.sector_size)
+        io = KaitaiStream(BytesIO(self._raw__m_partition_lookup))
+        self._m_partition_lookup = self._root.PartitionEntry(io, self, self._root)
+        self._m_partition_lookup._read()
+        self._debug['_m_partition_lookup']['end'] = io.pos()
+        io.seek(_pos)
+        return self._m_partition_lookup if hasattr(self, '_m_partition_lookup') else None
+
+    @property
+    def partition_entries(self):
+        if hasattr(self, '_m_partition_entries'):
+            return self._m_partition_entries if hasattr(self, '_m_partition_entries') else None
+
+        io = self._root._io
+        _pos = io.pos()
+        io.seek(self._root.sector_size)
+        self._debug['_m_partition_entries']['start'] = io.pos()
+        self._raw__m_partition_entries = [None] * (self._root.partition_lookup.number_of_partitions)
+        self._m_partition_entries = [None] * (self._root.partition_lookup.number_of_partitions)
+        for i in range(self._root.partition_lookup.number_of_partitions):
+            if not 'arr' in self._debug['_m_partition_entries']:
+                self._debug['_m_partition_entries']['arr'] = []
+            self._debug['_m_partition_entries']['arr'].append({'start': io.pos()})
+            self._raw__m_partition_entries[i] = io.read_bytes(self.sector_size)
+            io = KaitaiStream(BytesIO(self._raw__m_partition_entries[i]))
+            _t__m_partition_entries = self._root.PartitionEntry(io, self, self._root)
+            _t__m_partition_entries._read()
+            self._m_partition_entries[i] = _t__m_partition_entries
+            self._debug['_m_partition_entries']['arr'][i]['end'] = io.pos()
+
+        self._debug['_m_partition_entries']['end'] = io.pos()
+        io.seek(_pos)
+        return self._m_partition_entries if hasattr(self, '_m_partition_entries') else None
+
+