util, flow, pif: Simplify sock_l4_sa() interface

sock_l4_sa() has a somewhat confusing 'v6only' option controlling whether
to set the IPV6_V6ONLY socket option.  Usually it's set when the given
address is IPv6, but not when we want to create a dual stack listening
socket.  The latter only makes sense when the address is :: however.

Clarify this by only keeping the v6only option in an internal helper
sock_l4_().  External users will call either sock_l4() which always creates
a socket bound to a specific IP version, or sock_l4_dualstack() which
creates a dual stack socket, but takes only a port not an address.

We drop the '_sa' suffix while we're at it - it exists because this used
to be an internal version with a sock_l4() wrapper.  The wrapper no longer
exists so the '_sa' is no longer useful.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

0 files changed, 0 insertions, 0 deletions