1 /*************************************************************************** 2 * _ _ ____ _ 3 * Project ___| | | | _ \| | 4 * / __| | | | |_) | | 5 * | (__| |_| | _ <| |___ 6 * \___|\___/|_| \_\_____| 7 * 8 * Copyright (C) 1998 - 2016, 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 /* 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 */ 112
