return bytes(~b & 0xFF for b in data)[::-1]
# fmt: off
Toif = c.Struct(
"magic" / c.Const(b"TOI"),
"format" / c.Enum(c.Byte, full_color=b"f", grayscale=b"g"),
"width" / c.Int16ul,
"height" / c.Int16ul,
"data" / c.Prefixed(c.Int32ul, c.GreedyBytes),
)
VendorTrust = c.Transformed(
c.BitStruct(
"reserved" / c.Default(c.BitsInteger(9), 0),
"show_vendor_string" / c.Flag,
"require_user_click" / c.Flag,
"red_background" / c.Flag,
"delay" / c.BitsInteger(4),
), _transform_vendor_trust, 2, _transform_vendor_trust, 2)
VendorHeader = c.Struct(
"_start_offset" / c.Tell,
"magic" / c.Const(b"TRZV"),
"_header_len" / c.Padding(4),
"expiry" / c.Int32ul,
"version" / c.Struct(
"major" / c.Int8ul,
"minor" / c.Int8ul,
),
"vendor_sigs_required" / c.Int8ul,
"vendor_sigs_n" / c.Rebuild(c.Int8ul, c.len_(c.this.pubkeys)),
return bytes(~b & 0xFF for b in data)
# fmt: off
Toif = c.Struct(
"magic" / c.Const(b"TOI"),
"format" / c.Enum(c.Byte, full_color=b"f", grayscale=b"g"),
"width" / c.Int16ul,
"height" / c.Int16ul,
"data" / c.Prefixed(c.Int32ul, c.GreedyBytes),
)
VendorTrust = c.Transformed(
c.BitStruct(
"reserved" / c.Padding(9),
"show_vendor_string" / c.Flag,
"require_user_click" / c.Flag,
"red_background" / c.Flag,
"delay" / c.BitsInteger(4),
), bytes_not, 2, bytes_not, 2)
VendorHeader = c.Struct(
"_start_offset" / c.Tell,
"magic" / c.Const(b"TRZV"),
"_header_len" / c.Padding(4),
"expiry" / c.Int32ul,
"version" / c.Struct(
"major" / c.Int8ul,
"minor" / c.Int8ul,
),
"vendor_sigs_required" / c.Int8ul,
"vendor_sigs_n" / c.Rebuild(c.Int8ul, c.len_(c.this.pubkeys)),
import construct as c
from . import CompactUint, ConstFlag, Optional
BitcoinBytes = c.Prefixed(CompactUint, c.GreedyBytes)
"""Bitcoin string of bytes.
Encoded as a CompactUint length followed by that many bytes.
"""
TxHash = c.Transformed(c.Bytes(32), lambda b: b[::-1], 32, lambda b: b[::-1], 32)
"""Transaction hash, encoded as a reversed sequence of bytes."""
TxInput = c.Struct(
"tx" / TxHash,
"index" / c.Int32ul,
"script_sig" / BitcoinBytes,
"sequence" / c.Int32ul,
)
"""Transaction input."""
TxOutput = c.Struct("value" / c.Int64ul, "script_pubkey" / BitcoinBytes)
"""Transaction output."""
TxInputWitness = c.PrefixedArray(CompactUint, BitcoinBytes)
"""Array of witness records."""
Transaction = c.Struct(
"version" / c.Int32ul,
"segwit" / ConstFlag(b"\x00\x01"),
"inputs" / c.PrefixedArray(CompactUint, TxInput),
def struct(cls):
return construct.Struct(
"signature" / construct.Const(b"vf"),
"version" / _LMArchiveVersionValidator(construct.Int32ul),
"count" / construct.Int32ul,
"filenames" / construct.Array(
construct.this.count,
construct.IfThenElse(
construct.this.version >= 100,
construct.Prefixed(
construct.Int32ul,
construct.Transformed(
construct.GreedyString('cp932'),
LMObfuscator().transform_bytes,
None,
LMObfuscator().transform_bytes,
None,
),
),
construct.PascalString(construct.Int32ul, 'cp932'),
)),
"offsets" / construct.Array(
construct.this.count + 1,
construct.Struct(
"offset_low" / construct.IfThenElse(
construct.this._.version >= 100,
construct.Transformed(
construct.Int32ul,
LMObfuscator().transform_int,
4,
LMObfuscator().transform_int,
4,
),
construct.Int32ul,
),
# offset_high always 0 if ver < 101
"offset_high" / construct.IfThenElse(
construct.this._.version >= 101,
construct.Transformed(
construct.Int32ul,
LMObfuscator().transform_int,
4,
LMObfuscator().transform_int_high,
4,
),
construct.Int32ul,
),
),
),
"compress_types" /
construct.Array(construct.this.count,
construct.Enum(construct.Byte, LMCompressType)),
"unk1s" / construct.Array(
construct.this.count,
# construct.Transformed(
# construct.Int32ul,
# LMObfuscator().transform_int,
# 4,
# LMObfuscator().transform_int,
# 4,
# ),
construct.Int32ul,
),
"checksums" / construct.Array(
construct.this.count,
construct.Int32ul,
),
"encrypt_flags" / construct.Array(
construct.this.count,
construct.Byte,
),
)