the current design of the virtual mount system turned out to be less
than ideal in terms of both simplicity and robustness. since its
importance seems to be rather marginal at the moment, it is better to
first remove it in its entirety, and then, given sufficient interest,
re-implement and integrate it into the system.
Integration of this function into the library has been delayed
since the AFD ioctl operation, while succeeding, seems to only
memset the caller's address buffer, and accordingly to never
copy the remote socket address to it. Callers of sc_getpeername()
should therefore first check the return value for success -- which
may be used as indication that the socket is connected -- and then
test the returned address buffer for validity.
