#1323 rxsock always setting h_errno to 1541

[Rick McGuire]

All of the rxsock functions unconditionally set the h_errno variable to 1541, regardless of whether there is an error or no.

[David Ashley]

The function that sets the h_errno variable was bogus. A long time ago there were calls to the herrno and hstrerrno functions that retrieved the value to be set. But when those functions became obsolete a quick fix was made which unconditionally set 1514 as the value for h_errno. This always made a function call appear to fail if you checked the h_errno variable.

We have now fixed it so that a value of zero (0) is always set for h_errno so that it no longer appears that an error has occured.