[ SEA-GHOST MINI SHELL]

#!/usr/bin/python
import os.path
import pycurl
import sys

pycurl.global_init(pycurl.GLOBAL_DEFAULT)

def write_cb(_):
    # this should cause pycurl.WRITEFUNCTION (without any range errors)
    return -1

# download the script itself through the file:// protocol into write_cb
c = pycurl.Curl()
c.setopt(pycurl.URL, 'file://' + os.path.abspath(sys.argv[0]))
c.setopt(pycurl.WRITEFUNCTION, write_cb)
try:
    c.perform()
except pycurl.error, (err, msg):
    # we expect pycurl.E_WRITE_ERROR as the response
    assert pycurl.E_WRITE_ERROR == err

# no additional errors should be reported
assert not hasattr(sys, 'last_value')

c.close()

pycurl.global_cleanup()