def peek_bytes(pid, address, num_bytes):
reads = num_bytes // 4
remainder = num_bytes % 4
data = ''
for i in range(reads):
data = data + pack('<i', tracereplay.peek_address(pid, address))
address = address + 4
if remainder != 0:
last_chunk = pack('<i', tracereplay.peek_address(pid, address))
data = data + last_chunk[:remainder]
return data
def extract_socketcall_parameters(pid, address, num):
params = []
for i in range(num):
params += [tracereplay.peek_address(pid, address)]
address = address + 4
logging.debug('Extracted socketcall parameters: %s', params)
return params
def peek_string(pid, address):
data = ''
while True:
data = data + pack('<i', tracereplay.peek_address(pid, address))
address = address + 4
if '\0' in data:
while '\0' in data:
data = data[:data.rfind('\0')]
return data
def write_buffer(pid, address, value, buffer_length):
writes = [value[i:i+4] for i in range(0, len(value), 4)]
trailing = len(value) % 4
if trailing != 0:
left = writes.pop()
for i in writes:
i = i[::-1]
data = int(binascii.hexlify(i), 16)
tracereplay.poke_address(pid, address, data)
address = address + 4
if trailing != 0:
address = address
data = tracereplay.peek_address(pid, address)
d = pack('i', data)
d = left + d[len(left):]
tracereplay.poke_address(pid, address, unpack('i', d)[0])
