def insert_random_bytes(bytecode, amount=1):
len_instr = len(bytecode)
for _ in range(amount):
index = Rnd.uni_integer(0, len_instr - 1)
bytecode = bytecode[:index] + Rnd.byte_sequence(
1) + bytecode[index + 1:]
return bytecode
import random
import evmdasm
import evmcodegen
from evmcodegen.codegen import Rnd
from .code import _RndCodeBase
from .address import RndAddress, RndDestAddress, RndAddressType
from .base import WeightedRandomizer
VALUEMAP = {
evmdasm.argtypes.Address:
lambda: RndDestAddress().as_bytes(),
evmdasm.argtypes.Word:
lambda: Rnd.byte_sequence(32),
evmdasm.argtypes.Timestamp:
lambda: Rnd.byte_sequence(4),
evmdasm.argtypes.Data:
lambda: Rnd.byte_sequence(Rnd.uni_integer(0, Rnd.opcode())),
evmdasm.argtypes.CallValue:
lambda: Rnd.uni_integer(0, 1024),
evmdasm.argtypes.Gas:
lambda: Rnd.uni_integer(0, 1024),
evmdasm.argtypes.Length:
lambda: Rnd.small_memory_length_1024(),
evmdasm.argtypes.MemOffset:
lambda: Rnd.small_memory_length_1024(),
evmdasm.argtypes.Index256:
lambda: Rnd.uni_integer(1, 256),
evmdasm.argtypes.Index64:
lambda: Rnd.uni_integer(1, 64),
evmdasm.argtypes.Index32:
lambda: Rnd.length_32(),