def update_socketcall_paramater(pid, params_addr, pos, value):
logging.debug('We are going to update a socketcall_parameter')
LONG_SIZE = 4
addr = params_addr + (pos * LONG_SIZE)
logging.debug('Params addr: %x', params_addr)
logging.debug('Specific parameter addr: %x', addr)
value = int(value)
logging.debug('Value: %d', value)
tracereplay.poke_address(pid, addr, value)
logging.debug('Re-extracting socketcall parameters')
p = extract_socketcall_parameters(pid, params_addr, pos + 1)
if p[pos] != value:
raise ReplayDeltaError('Populated socketcall parameter value: ({}) '
'was not updated to correct value: ({})'
.format(p[pos], value))
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])
