> On 1/26/23 10:36 AM, sdf@xxxxxxxxxx wrote:
> >
> > > + sockfd = socket(AF_INET, SOCK_DGRAM, 0);
> > > + if (sockfd < 0) {
> > > + fprintf(stderr, "Failed to create echo socket\n");
> > > + return -errno;
> > > + }
> > > +
> > > + err = setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &optval,
> > > + sizeof(optval));
> > > + if (err < 0) {
> > > + fprintf(stderr, "Failed sockopt on echo socket\n");
> > > + return -errno;
> > > + }
> > > +
> > > + err = bind(sockfd, (struct sockaddr *)&addr, sizeof(addr));
> > > + if (err) {
> > > + fprintf(stderr, "Failed to bind echo socket\n");
> > > + return -errno;
> > > + }
> >
> > IIRC, Martin mentioned IPv6 support in the previous version. Should we
> > also make the userspace v6 aware by at least using AF_INET6 dualstack
> > sockets? I feel like listening on inaddr_any with AF_INET6 should
> > get us there without too much pain..
>
> Yeah. Think about host that only has IPv6 address. A tool not supporting
> IPv6 is a no-go nowadays.
ack, I will add it in v4.
Regards,
Lorenzo
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