Found a problem with if_readsocket!

[Brian J. Murrell]

Hi Ted, et. al

I found the problem I was having while hacking OMAPI into the dhcp
client.  If you will recall I was having a with select returning with an
error of "invalid file descriptor".  Well I found the (indirect)
problem.  The function:

int if_readsocket (h)
	omapi_object_t *h;
{
	struct interface_info *ip;

	if (h -> type != dhcp_type_interface)
		return ISC_R_INVALIDARG;
	ip = (struct interface_info *)h;
	return ip -> rfdesc;
}

will return "39" (ISC_R_INVALIDARG) if the omapi_object_t "*h" is not a
"dhcp_type_interface".  The problem being of course that 39 can also be
a valid file descriptor.  So how to know an error occurred and that the
fd was not really 39?

This is only an indirect problem of course.  if_readsocket () should not
get an invalid omapi_object_t argument.  I am still chasing that one
down.

b.


--
Brian J. Murrell                              InterLinx Support Services, Inc.
North Vancouver, B.C.                                             604 983 UNIX
        Platform and Brand Independent UNIX Support - R3.2 - R4 - BSD