def validate_handle(handle):
try:
win32api.GetHandleInformation(handle)
except win32api.error as ex:
if ex.winerror == 6: # ERROR_INVALID_HANDLE
return False
else:
raise
else:
return True
def get_socket_inherit(socket):
'''
Returns True if the socket has been set to allow inheritance across
forks and execs to child processes, otherwise False
'''
try:
if iswindows:
import win32api, win32con
flags = win32api.GetHandleInformation(socket.fileno())
return bool(flags & win32con.HANDLE_FLAG_INHERIT)
else:
import fcntl
flags = fcntl.fcntl(socket.fileno(), fcntl.F_GETFD)
return not bool(flags & fcntl.FD_CLOEXEC)
except:
import traceback
traceback.print_exc()
def assert_not_inheritable(f):
if win32api.GetHandleInformation(msvcrt.get_osfhandle(
f.fileno())) & 0b1:
raise SystemExit('File handle is inheritable!')
