1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2014, 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 http://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
33 #include "curl_memory.h"
34 /* The last #include file should be: */
35 #include "memdebug.h"
36
37 #ifdef WANT_IDN_PROTOTYPES
38 # if defined(_SAL_VERSION)
39 WINNORMALIZEAPI int WINAPI
40 IdnToAscii(_In_ DWORD dwFlags,
41 _In_reads_(cchUnicodeChar) LPCWSTR lpUnicodeCharStr,
42 _In_ int cchUnicodeChar,
43 _Out_writes_opt_(cchASCIIChar) LPWSTR lpASCIICharStr,
44 _In_ int cchASCIIChar);
45 WINNORMALIZEAPI int WINAPI
46 IdnToUnicode(_In_ DWORD dwFlags,
47 _In_reads_(cchASCIIChar) LPCWSTR lpASCIICharStr,
48 _In_ int cchASCIIChar,
49 _Out_writes_opt_(cchUnicodeChar) LPWSTR lpUnicodeCharStr,
50 _In_ int cchUnicodeChar);
51 # else
52 WINBASEAPI int WINAPI IdnToAscii(DWORD dwFlags,
53 const WCHAR *lpUnicodeCharStr,
54 int cchUnicodeChar,
55 WCHAR *lpASCIICharStr,
56 int cchASCIIChar);
57 WINBASEAPI int WINAPI IdnToUnicode(DWORD dwFlags,
58 const WCHAR *lpASCIICharStr,
59 int cchASCIIChar,
60 WCHAR *lpUnicodeCharStr,
61 int cchUnicodeChar);
62 # endif
63 #endif
64
65 #define IDN_MAX_LENGTH 255
66
67 int curl_win32_idn_to_ascii(const char *in, char **out);
68 int curl_win32_ascii_to_idn(const char *in, size_t in_len, char **out_utf8);
69
curl_win32_idn_to_ascii(const char * in,char ** out)70 int curl_win32_idn_to_ascii(const char *in, char **out)
71 {
72 wchar_t *in_w = Curl_convert_UTF8_to_wchar(in);
73 if(in_w) {
74 wchar_t punycode[IDN_MAX_LENGTH];
75 if(IdnToAscii(0, in_w, -1, punycode, IDN_MAX_LENGTH) == 0) {
76 wprintf(L"ERROR %d converting to Punycode\n", GetLastError());
77 free(in_w);
78 return 0;
79 }
80 free(in_w);
81
82 *out = Curl_convert_wchar_to_UTF8(punycode);
83 if(!*out)
84 return 0;
85 }
86 return 1;
87 }
88
curl_win32_ascii_to_idn(const char * in,size_t in_len,char ** out_utf8)89 int curl_win32_ascii_to_idn(const char *in, size_t in_len, char **out_utf8)
90 {
91 (void)in_len; /* unused */
92 if(in) {
93 WCHAR unicode[IDN_MAX_LENGTH];
94
95 if(IdnToUnicode(0, (wchar_t *)in, -1, unicode, IDN_MAX_LENGTH) == 0) {
96 wprintf(L"ERROR %d converting to Punycode\n", GetLastError());
97 return 0;
98 }
99 else {
100 *out_utf8 = Curl_convert_wchar_to_UTF8(unicode);
101 if(!*out_utf8)
102 return 0;
103 }
104 }
105 return 1;
106 }
107
108 #endif /* USE_WIN32_IDN */
109