+int fio_server_parse_host(const char *host, int *ipv6, struct in_addr *inp,
+ struct in6_addr *inp6)
+
+{
+ int ret = 0;
+
+ if (*ipv6)
+ ret = inet_pton(AF_INET6, host, inp6);
+ else
+ ret = inet_pton(AF_INET, host, inp);
+
+ if (ret != 1) {
+ struct hostent *hent;
+
+ hent = gethostbyname(host);
+ if (!hent) {
+ log_err("fio: failed to resolve <%s>\n", host);
+ return 0;
+ }
+
+ if (*ipv6) {
+ if (hent->h_addrtype != AF_INET6) {
+ log_info("fio: falling back to IPv4\n");
+ *ipv6 = 0;
+ } else
+ memcpy(inp6, hent->h_addr_list[0], 16);
+ }
+ if (!*ipv6) {
+ if (hent->h_addrtype != AF_INET) {
+ log_err("fio: lookup type mismatch\n");
+ return 0;
+ }
+ memcpy(inp, hent->h_addr_list[0], 4);
+ }
+ ret = 1;
+ }
+
+ return !(ret == 1);
+}
+