• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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 
curl_win32_idn_to_ascii(const char * in,char ** out)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 
curl_win32_ascii_to_idn(const char * in,char ** out)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 */
112