+#if PHP_HTTP_HAVE_LIBIDNKIT || PHP_HTTP_HAVE_LIBIDNKIT2
+# if __GNUC__
+__attribute__ ((unused))
+# endif
+static ZEND_RESULT_CODE parse_kidn(struct parse_state *state, size_t prev_len)
+{
+ idn_result_t rc;
+#if PHP_HTTP_HAVE_LIBIDNKIT
+ int actions = IDN_DELIMMAP|IDN_LOCALMAP|IDN_NAMEPREP|IDN_IDNCONV|IDN_LENCHECK;
+#elif PHP_HTTP_HAVE_LIBIDNKIT2
+ int actions = IDN_MAP|IDN_ASCLOWER|IDN_RTCONV|IDN_PROHCHECK|IDN_NFCCHECK|IDN_PREFCHECK|IDN_COMBCHECK|IDN_CTXOLITECHECK|IDN_BIDICHECK|IDN_LOCALCHECK|IDN_IDNCONV|IDN_LENCHECK|IDN_RTCHECK;
+#endif
+ char ahost_str[256] = {0};
+
+ if (state->flags & PHP_HTTP_URL_PARSE_MBLOC) {
+#if PHP_HTTP_HAVE_LIBIDNKIT
+ actions |= IDN_LOCALCONV;
+#elif PHP_HTTP_HAVE_LIBIDNKIT2
+ actions |= IDN_UNICODECONV;
+#endif
+ }
+
+ rc = idn_encodename(actions, state->url.host, ahost_str, 256);
+ if (rc == idn_success) {
+ size_t ahost_len = strlen(ahost_str);
+
+ memcpy(state->url.host, ahost_str, ahost_len + 1);
+ state->offset += ahost_len - prev_len;
+
+ return SUCCESS;
+ } else {
+ php_error_docref(NULL, E_WARNING, "Failed to parse IDN; %s", idn_result_tostring(rc));
+ return FAILURE;
+ }
+}
+#endif
+
+#if 0 && PHP_WIN32
+static ZEND_RESULT_CODE parse_widn_2003(struct parse_state *state, size_t prev_len)