{
int fd;
int len = PKBUFSZ;
+ int yes = 1;
int i;
struct addrinfo *ai;
unsigned port, lastport = 0;
if ((fd = socket(ai->ai_family, SOCK_DGRAM, 0)) < 0)
die(EXIT_FAILURE, "socket creation failed: %s", strerror(errno));
+ if (i == AFIX_INET6 &&
+ setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &yes, sizeof(yes))) {
+ die(EXIT_FAILURE, "failed to set IPv6-only state: %s",
+ strerror(errno));
+ }
assert(ai->ai_addrlen <= sizeof(a));
memcpy(&a, ai->ai_addr, ai->ai_addrlen);
if ((port = getport(&a)) == 0 && lastport) setport(&a, lastport);