def try_fname(exp, add_color=False):
if Loader.find_sig(hex(exp)[:10]):
return Loader.find_sig(hex(exp)[:10], add_color)
elif len(hex(exp))>=63 and Loader.find_sig(padded_hex(exp,64)[:10], add_color):# in Loader.signatures: # if three last letters are "0"s, but no more, so there is
# a low chance for mistaking a random number for function sig
return Loader.find_sig(padded_hex(exp,64)[:10], add_color)
elif len(hex(exp))>=8 and Loader.find_sig(padded_hex(exp,8)[:10], add_color):# in Loader.signatures:
return Loader.find_sig(padded_hex(exp,8)[:10], add_color)
else:
return None
def add_func(self, target, hash=None, name=None, stack=()):
assert hash is not None or name is not None # we need at least one
assert not (hash is not None and name is not None) # we don't want both
if hash is not None:
padded = padded_hex(hash, 8) # lines[i-12][2]
if padded in self.signatures:
name = self.signatures[padded]
else:
name = "unknown_{}(?????)".format(padded)
self.signatures[padded] = name
if hash is None:
self.hash_targets[name] = target, stack
else:
self.hash_targets[padded_hex(hash, 8)] = target, stack
self.func_dests[name] = target
elif r ~ ('create', :wei, :code):
yield f"create contract with {wei} wei"
yield f" code: {prettify(code)}"
elif r ~ ('create2', :wei, :code, :salt):
yield f"create2 contract with {wei} wei"
yield f" salt: {prettify(salt)}"
yield f" code: {prettify(code)}"
elif r ~ ('call', :gas, :addr, :wei, :fname, :fparams):
if type(addr) == int:
if len(hex(addr)) > 22+2:
addr = padded_hex(addr, 40) # todo: padded hex
else:
addr = hex(addr) # if it's longer, padded hex returns '???'
addr = pret(addr)
gas = pretty_gas(gas, wei, add_color)
if fname is None:
yield f"call {addr} with:"
else:
fname = pretty_fname(fname, add_color=add_color)
if fname == '0x0':
yield f"call {addr} with:"