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      1 /***************************************************************************
      2  *                                  _   _ ____  _
      3  *  Project                     ___| | | |  _ \| |
      4  *                             / __| | | | |_) | |
      5  *                            | (__| |_| |  _ <| |___
      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel (at) haxx.se>, et al.
      9  *
     10  * This software is licensed as described in the file COPYING, which
     11  * you should have received as part of this distribution. The terms
     12  * are also available at https://curl.haxx.se/docs/copyright.html.
     13  *
     14  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
     15  * copies of the Software, and permit persons to whom the Software is
     16  * furnished to do so, under the terms of the COPYING file.
     17  *
     18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
     19  * KIND, either express or implied.
     20  *
     21  ***************************************************************************/
     22 
     23 #include "curl_setup.h"
     24 
     25 #include <curl/curl.h>
     26 
     27 #if defined(USE_WIN32_IDN) || ((defined(USE_WINDOWS_SSPI) || \
     28                                 defined(USE_WIN32_LDAP)) && defined(UNICODE))
     29 
     30  /*
     31   * MultiByte conversions using Windows kernel32 library.
     32   */
     33 
     34 #include "curl_multibyte.h"
     35 #include "curl_memory.h"
     36 
     37 /* The last #include file should be: */
     38 #include "memdebug.h"
     39 
     40 wchar_t *Curl_convert_UTF8_to_wchar(const char *str_utf8)
     41 {
     42   wchar_t *str_w = NULL;
     43 
     44   if(str_utf8) {
     45     int str_w_len = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS,
     46                                         str_utf8, -1, NULL, 0);
     47     if(str_w_len > 0) {
     48       str_w = malloc(str_w_len * sizeof(wchar_t));
     49       if(str_w) {
     50         if(MultiByteToWideChar(CP_UTF8, 0, str_utf8, -1, str_w,
     51                                str_w_len) == 0) {
     52           free(str_w);
     53           return NULL;
     54         }
     55       }
     56     }
     57   }
     58 
     59   return str_w;
     60 }
     61 
     62 char *Curl_convert_wchar_to_UTF8(const wchar_t *str_w)
     63 {
     64   char *str_utf8 = NULL;
     65 
     66   if(str_w) {
     67     int bytes = WideCharToMultiByte(CP_UTF8, 0, str_w, -1,
     68                                     NULL, 0, NULL, NULL);
     69     if(bytes > 0) {
     70       str_utf8 = malloc(bytes);
     71       if(str_utf8) {
     72         if(WideCharToMultiByte(CP_UTF8, 0, str_w, -1, str_utf8, bytes,
     73                                NULL, NULL) == 0) {
     74           free(str_utf8);
     75           return NULL;
     76         }
     77       }
     78     }
     79   }
     80 
     81   return str_utf8;
     82 }
     83 
     84 #endif /* USE_WIN32_IDN || ((USE_WINDOWS_SSPI || USE_WIN32_LDAP) && UNICODE) */
     85