Return to idn_win32.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / curl / lib

curl

    1: /***************************************************************************
    2:  *                                  _   _ ____  _
    3:  *  Project                     ___| | | |  _ \| |
    4:  *                             / __| | | | |_) | |
    5:  *                            | (__| |_| |  _ <| |___
    6:  *                             \___|\___/|_| \_\_____|
    7:  *
    8:  * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@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:  /*
   24:   * IDN conversions using Windows kernel32 and normaliz libraries.
   25:   */
   26: 
   27: #include "curl_setup.h"
   28: 
   29: #ifdef USE_WIN32_IDN
   30: 
   31: #include "curl_multibyte.h"
   32: #include "curl_memory.h"
   33: #include "warnless.h"
   34: 
   35:   /* The last #include file should be: */
   36: #include "memdebug.h"
   37: 
   38: #ifdef WANT_IDN_PROTOTYPES
   39: #  if defined(_SAL_VERSION)
   40: WINNORMALIZEAPI int WINAPI
   41: IdnToAscii(_In_                           DWORD    dwFlags,
   42:            _In_reads_(cchUnicodeChar)     LPCWSTR  lpUnicodeCharStr,
   43:            _In_                           int      cchUnicodeChar,
   44:            _Out_writes_opt_(cchASCIIChar) LPWSTR   lpASCIICharStr,
   45:            _In_                           int      cchASCIIChar);
   46: WINNORMALIZEAPI int WINAPI
   47: IdnToUnicode(_In_                             DWORD   dwFlags,
   48:              _In_reads_(cchASCIIChar)         LPCWSTR lpASCIICharStr,
   49:              _In_                             int     cchASCIIChar,
   50:              _Out_writes_opt_(cchUnicodeChar) LPWSTR  lpUnicodeCharStr,
   51:              _In_                             int     cchUnicodeChar);
   52: #  else
   53: WINBASEAPI int WINAPI IdnToAscii(DWORD dwFlags,
   54:                                  const WCHAR *lpUnicodeCharStr,
   55:                                  int cchUnicodeChar,
   56:                                  WCHAR *lpASCIICharStr,
   57:                                  int cchASCIIChar);
   58: WINBASEAPI int WINAPI IdnToUnicode(DWORD dwFlags,
   59:                                    const WCHAR *lpASCIICharStr,
   60:                                    int cchASCIIChar,
   61:                                    WCHAR *lpUnicodeCharStr,
   62:                                    int cchUnicodeChar);
   63: #  endif
   64: #endif
   65: 
   66: #define IDN_MAX_LENGTH 255
   67: 
   68: bool curl_win32_idn_to_ascii(const char *in, char **out);
   69: bool curl_win32_ascii_to_idn(const char *in, char **out);
   70: 
   71: bool curl_win32_idn_to_ascii(const char *in, char **out)
   72: {
   73:   bool success = FALSE;
   74: 
   75:   wchar_t *in_w = Curl_convert_UTF8_to_wchar(in);
   76:   if(in_w) {
   77:     wchar_t punycode[IDN_MAX_LENGTH];
   78:     int chars = IdnToAscii(0, in_w, -1, punycode, IDN_MAX_LENGTH);
   79:     free(in_w);
   80:     if(chars) {
   81:       *out = Curl_convert_wchar_to_UTF8(punycode);
   82:       if(*out)
   83:         success = TRUE;
   84:     }
   85:   }
   86: 
   87:   return success;
   88: }
   89: 
   90: bool curl_win32_ascii_to_idn(const char *in, char **out)
   91: {
   92:   bool success = FALSE;
   93: 
   94:   wchar_t *in_w = Curl_convert_UTF8_to_wchar(in);
   95:   if(in_w) {
   96:     size_t in_len = wcslen(in_w) + 1;
   97:     wchar_t unicode[IDN_MAX_LENGTH];
   98:     int chars = IdnToUnicode(0, in_w, curlx_uztosi(in_len),
   99:                              unicode, IDN_MAX_LENGTH);
  100:     free(in_w);
  101:     if(chars) {
  102:       *out = Curl_convert_wchar_to_UTF8(unicode);
  103:       if(*out)
  104:         success = TRUE;
  105:     }
  106:   }
  107: 
  108:   return success;
  109: }
  110: 
  111: #endif /* USE_WIN32_IDN */