+
+#ifdef HAVE_UIDNA_IDNTOASCII
+# if HAVE_UNICODE_UIDNA_H
+# include <unicode/uidna.h>
+# else
+typedef uint16_t UChar;
+typedef enum { U_ZERO_ERROR = 0 } UErrorCode;
+int32_t uidna_IDNToASCII(const UChar *src, int32_t srcLength, UChar *dest, int32_t destCapacity, int32_t options, void *parseError, UErrorCode *status);
+# endif
+static ZEND_RESULT_CODE parse_uidn(struct parse_state *state)
+{
+ char *host_ptr;
+ uint16_t *uhost_str, ahost_str[MAXHOSTNAMELEN], *ahost_ptr;
+ size_t uhost_len, ahost_len;
+ UErrorCode error = U_ZERO_ERROR;
+ TSRMLS_FETCH_FROM_CTX(state->ts);
+
+ if (state->flags & PHP_HTTP_URL_PARSE_MBUTF8) {
+ if (SUCCESS != to_utf16(parse_mb_utf8, state->url.host, &uhost_str, &uhost_len TSRMLS_CC)) {
+ return FAILURE;
+ }
+#ifdef PHP_HTTP_HAVE_WCHAR
+ } else if (state->flags & PHP_HTTP_URL_PARSE_MBLOC) {
+ if (SUCCESS != to_utf16(parse_mb_loc, state->url.host, &uhost_str, &uhost_len TSRMLS_CC)) {
+ return FAILURE;
+ }
+#endif
+ } else {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse IDN; codepage not specified");
+ return FAILURE;
+ }
+
+ ahost_len = uidna_IDNToASCII(uhost_str, uhost_len, ahost_str, MAXHOSTNAMELEN, 3, NULL, &error);
+ efree(uhost_str);
+
+ if (error != U_ZERO_ERROR) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse IDN; ICU error %d", error);
+ return FAILURE;
+ }
+
+ host_ptr = state->url.host;
+ ahost_ptr = ahost_str;
+ PHP_HTTP_DUFF(ahost_len, *host_ptr++ = *ahost_ptr++);
+
+ *host_ptr = '\0';
+ state->offset += host_ptr - state->url.host;
+
+ return SUCCESS;
+}
+#endif
+
+#if 0 && defined(PHP_WIN32)
+static ZEND_RESULT_CODE parse_widn(struct parse_state *state)
+{
+ char *host_ptr;
+ uint16_t *uhost_str, ahost_str[MAXHOSTNAMELEN], *ahost_ptr;
+ size_t uhost_len;
+ TSRMLS_FETCH_FROM_CTX(state->ts);
+
+ if (state->flags & PHP_HTTP_URL_PARSE_MBUTF8) {
+ if (SUCCESS != to_utf16(parse_mb_utf8, state->url.host, &uhost_str, &uhost_len)) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse IDN");
+ return FAILURE;
+ }
+#ifdef PHP_HTTP_HAVE_WCHAR
+ } else if (state->flags & PHP_HTTP_URL_PARSE_MBLOC) {
+ if (SUCCESS != to_utf16(parse_mb_loc, state->url.host, &uhost_str, &uhost_len)) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse IDN");
+ return FAILURE;
+ }
+#endif
+ } else {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse IDN");
+ return FAILURE;
+ }
+
+ if (!IdnToAscii(IDN_ALLOW_UNASSIGNED|IDN_USE_STD3_ASCII_RULES, uhost_str, uhost_len, ahost_str, MAXHOSTNAMELEN)) {
+ efree(uhost_str);
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse IDN");
+ return FAILURE;
+ }
+
+ efree(uhost_str);
+ host_ptr = state->url.host;
+ ahost_ptr = ahost_str;
+ PHP_HTTP_DUFF(wcslen(ahost_str), *host_ptr++ = *ahost_ptr++);
+ efree(ahost_str);
+
+ *host_ptr = '\0';
+ state->offset += host_ptr - state->url.host;
+
+ return SUCCESS;
+}
+#endif
+
+#ifdef HAVE_INET_PTON
+static const char *parse_ip6(struct parse_state *state, const char *ptr)
+{
+ const char *error = NULL, *end = state->ptr, *tmp = memchr(ptr, ']', end - ptr);
+ TSRMLS_FETCH_FROM_CTX(state->ts);
+
+ if (tmp) {
+ size_t addrlen = tmp - ptr + 1;
+ char buf[16], *addr = estrndup(ptr + 1, addrlen - 2);
+ int rv = inet_pton(AF_INET6, addr, buf);
+
+ if (rv == 1) {
+ state->buffer[state->offset] = '[';
+ state->url.host = &state->buffer[state->offset];
+ inet_ntop(AF_INET6, buf, state->url.host + 1, state->maxlen - state->offset);
+ state->offset += strlen(state->url.host);
+ state->buffer[state->offset++] = ']';
+ state->buffer[state->offset++] = 0;
+ ptr = tmp + 1;
+ } else if (rv == -1) {
+ error = strerror(errno);
+ } else {
+ error = "unexpected '['";
+ }
+ efree(addr);
+ } else {
+ error = "expected ']'";
+ }
+
+ if (error) {
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse hostinfo; %s", error);
+ return NULL;
+ }
+
+ return ptr;
+}
+#endif
+
+static ZEND_RESULT_CODE parse_hostinfo(struct parse_state *state, const char *ptr)
+{
+ size_t mb, len;
+ const char *end = state->ptr, *tmp = ptr, *port = NULL, *label = NULL;
+ TSRMLS_FETCH_FROM_CTX(state->ts);
+
+#ifdef HAVE_INET_PTON
+ if (*ptr == '[' && !(ptr = parse_ip6(state, ptr))) {
+ return FAILURE;
+ }
+#endif
+