+#ifdef IPV6
+#define sockaddr_native sockaddr_in6
+
+void sockaddr_to_irc(const struct sockaddr_in6 *v6, struct irc_sockaddr *irc)
+{
+ assert(v6->sin6_family == AF_INET6);
+ memcpy(&irc->addr.in6_16[0], &v6->sin6_addr, sizeof(v6->sin6_addr));
+ irc->port = ntohs(v6->sin6_port);
+}
+
+void sockaddr_from_irc(struct sockaddr_in6 *v6, const struct irc_sockaddr *irc, int persist)
+{
+ memset(v6, 0, sizeof(*v6));
+ v6->sin6_family = AF_INET6;
+ memcpy(&v6->sin6_addr, &irc->addr.in6_16[0], sizeof(v6->sin6_addr));
+ if (persist && irc_in_addr_is_ipv4(&irc->addr))
+ v6->sin6_addr.s6_addr[10] = v6->sin6_addr.s6_addr[11] = '\xff';
+ v6->sin6_port = htons(irc->port);
+}
+
+#else
+#define sockaddr_native sockaddr_in
+
+void sockaddr_to_irc(const struct sockaddr_in *v4, struct irc_sockaddr *irc)
+{
+ assert(v4->sin_family == AF_INET);
+ memset(&irc->addr, 0, 6*sizeof(irc->addr.in6_16[0]));
+ memcpy(&irc->addr.in6_16[6], &v4->sin_addr, sizeof(v4->sin_addr));
+ irc->port = ntohs(v4->sin_port);
+}
+
+void sockaddr_from_irc(struct sockaddr_in *v4, const struct irc_sockaddr *irc, int persist)
+{
+ v4->sin_family = AF_INET6;
+ assert(!irc->addr.in6_16[0] && !irc->addr.in6_16[1] && !irc->addr.in6_16[2] && !irc->addr.in6_16[3] && !irc->addr.in6_16[4] && (!irc->addr.in6_16[5] || irc->addr.in6_16[5] == 0xffff));
+ memcpy(&v4->sin_addr, &irc->addr.in6_16[7], sizeof(v4->sin_addr));
+ v4->sin_port = htons(irc->port);
+ (void)persist;
+}
+
+#endif
+