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Annotation of embedaddon/curl/lib/idn_win32.c, revision 1.1.1.1

1.1       misho       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 */