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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2012, 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 "setup.h"

#if defined(USE_WIN32_IDN) || (defined(USE_WINDOWS_SSPI) && defined(UNICODE))

 /*
* MultiByte conversions using Windows kernel32 library.
*/

#include "curl_multibyte.h"

#define _MPRINTF_REPLACE /* use our functions only */
#include <curl/mprintf.h>

#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"

wchar_t *Curl_convert_UTF8_to_wchar(const char *str_utf8)
{
  wchar_t *str_w = NULL;

  if(str_utf8) {
    int str_w_len = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS,
                                        str_utf8, -1, NULL, 0);
    if(str_w_len > 0) {
      str_w = malloc(str_w_len * sizeof(wchar_t));
      if(str_w) {
        if(MultiByteToWideChar(CP_UTF8, 0, str_utf8, -1, str_w,
                               str_w_len) == 0) {
          Curl_safefree(str_w);
        }
      }
    }
  }

  return str_w;
}

char *Curl_convert_wchar_to_UTF8(const wchar_t *str_w)
{
  char *str_utf8 = NULL;

  if(str_w) {
    int str_utf8_len = WideCharToMultiByte(CP_UTF8, 0, str_w, -1, NULL,
                                           0, NULL, NULL);
    if(str_utf8_len > 0) {
      str_utf8 = malloc(str_utf8_len * sizeof(wchar_t));
      if(str_utf8) {
        if(WideCharToMultiByte(CP_UTF8, 0, str_w, -1, str_utf8, str_utf8_len,
                               NULL, FALSE) == 0) {
          Curl_safefree(str_utf8);
        }
      }
    }
  }

  return str_utf8;
}

#endif /* USE_WIN32_IDN || (USE_WINDOWS_SSPI && UNICODE) */
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