making http request with gforth

hi forthers,

I am trying to do a (very simple and naive) http-request
with gforth (current from git):

#+begin_src forth
require unix/socket.fs

: test-http
  s" httpbin.org" 80 open-socket >r
  s" GET / HTTP/1.1\nHost httpbin.org\n\n" r@ write-socket
  r@ pad 80 read-socket
  r> close-socket ;
#+end_src

but /read-socket/ doesn't return anything - result is pad 0 on
the stack.

probably I misunderstand howto use socket.fs?

additional question - has anyone already done bindings for
libcurl?

many thanks for any hints & merry christmas - okflo