This allows compilation under FreeBSD without errors.
read_tcpip.cc: Avoid using of SOCK_NONBLOCK argument for socket().
SOCK_NONBLOCK is Linux-specific and its use was substituted with a
fcntl() call after socket().
freebsd.cc: Change return type of update_*() to int, as required by
common.h.
Signed-off-by: Alexander Graf <agraf@znc.in>
Signed-off-by: Pavel Labath <pavelo@centrum.sk>