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+#ifndef HEADER_CURL_MULTIBYTE_H
+#define HEADER_CURL_MULTIBYTE_H
+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+#include "curl_setup.h"
+
+#if defined(USE_WIN32_IDN) || ((defined(USE_WINDOWS_SSPI) || \
+ defined(USE_WIN32_LDAP)) && defined(UNICODE))
+
+ /*
+ * MultiByte conversions using Windows kernel32 library.
+ */
+
+CURL_STATIC wchar_t *Curl_convert_UTF8_to_wchar(const char *str_utf8);
+CURL_STATIC char *Curl_convert_wchar_to_UTF8(const wchar_t *str_w);
+
+#endif /* USE_WIN32_IDN || ((USE_WINDOWS_SSPI || USE_WIN32_LDAP) && UNICODE) */
+
+
+#if defined(USE_WIN32_IDN) || defined(USE_WINDOWS_SSPI) || \
+ defined(USE_WIN32_LDAP)
+
+/*
+ * Macros Curl_convert_UTF8_to_tchar(), Curl_convert_tchar_to_UTF8()
+ * and Curl_unicodefree() main purpose is to minimize the number of
+ * preprocessor conditional directives needed by code using these
+ * to differentiate UNICODE from non-UNICODE builds.
+ *
+ * When building with UNICODE defined, this two macros
+ * Curl_convert_UTF8_to_tchar() and Curl_convert_tchar_to_UTF8()
+ * return a pointer to a newly allocated memory area holding result.
+ * When the result is no longer needed, allocated memory is intended
+ * to be free'ed with Curl_unicodefree().
+ *
+ * When building without UNICODE defined, this macros
+ * Curl_convert_UTF8_to_tchar() and Curl_convert_tchar_to_UTF8()
+ * return the pointer received as argument. Curl_unicodefree() does
+ * no actual free'ing of this pointer it is simply set to NULL.
+ */
+
+#ifdef UNICODE
+
+#define Curl_convert_UTF8_to_tchar(ptr) Curl_convert_UTF8_to_wchar((ptr))
+#define Curl_convert_tchar_to_UTF8(ptr) Curl_convert_wchar_to_UTF8((ptr))
+#define Curl_unicodefree(ptr) \
+ do {if((ptr)) {free((ptr)); (ptr) = NULL;}} WHILE_FALSE
+
+typedef union {
+ unsigned short *tchar_ptr;
+ const unsigned short *const_tchar_ptr;
+ unsigned short *tbyte_ptr;
+ const unsigned short *const_tbyte_ptr;
+} xcharp_u;
+
+#else
+
+#define Curl_convert_UTF8_to_tchar(ptr) (ptr)
+#define Curl_convert_tchar_to_UTF8(ptr) (ptr)
+#define Curl_unicodefree(ptr) \
+ do {(ptr) = NULL;} WHILE_FALSE
+
+typedef union {
+ char *tchar_ptr;
+ const char *const_tchar_ptr;
+ unsigned char *tbyte_ptr;
+ const unsigned char *const_tbyte_ptr;
+} xcharp_u;
+
+#endif /* UNICODE */
+
+#endif /* USE_WIN32_IDN || USE_WINDOWS_SSPI || USE_WIN32_LDAP */
+
+#endif /* HEADER_CURL_MULTIBYTE_H */