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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2022, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* SPDX-License-Identifier: curl
*
***************************************************************************/
/*
* IDN conversions using Windows kernel32 and normaliz libraries.
*/
#include "curl_setup.h"
#ifdef USE_WIN32_IDN
#include "curl_multibyte.h"
#include "curl_memory.h"
#include "warnless.h"
/* The last #include file should be: */
#include "memdebug.h"
#ifdef WANT_IDN_PROTOTYPES
# if defined(_SAL_VERSION)
WINNORMALIZEAPI int WINAPI
IdnToAscii(_In_ DWORD dwFlags,
_In_reads_(cchUnicodeChar) LPCWSTR lpUnicodeCharStr,
_In_ int cchUnicodeChar,
_Out_writes_opt_(cchASCIIChar) LPWSTR lpASCIICharStr,
_In_ int cchASCIIChar);
WINNORMALIZEAPI int WINAPI
IdnToUnicode(_In_ DWORD dwFlags,
_In_reads_(cchASCIIChar) LPCWSTR lpASCIICharStr,
_In_ int cchASCIIChar,
_Out_writes_opt_(cchUnicodeChar) LPWSTR lpUnicodeCharStr,
_In_ int cchUnicodeChar);
# else
WINBASEAPI int WINAPI IdnToAscii(DWORD dwFlags,
const WCHAR *lpUnicodeCharStr,
int cchUnicodeChar,
WCHAR *lpASCIICharStr,
int cchASCIIChar);
WINBASEAPI int WINAPI IdnToUnicode(DWORD dwFlags,
const WCHAR *lpASCIICharStr,
int cchASCIIChar,
WCHAR *lpUnicodeCharStr,
int cchUnicodeChar);
# endif
#endif
#define IDN_MAX_LENGTH 255
bool curl_win32_idn_to_ascii(const char *in, char **out);
bool curl_win32_ascii_to_idn(const char *in, char **out);
bool curl_win32_idn_to_ascii(const char *in, char **out)
{
bool success = FALSE;
wchar_t *in_w = curlx_convert_UTF8_to_wchar(in);
if(in_w) {
wchar_t punycode[IDN_MAX_LENGTH];
int chars = IdnToAscii(0, in_w, -1, punycode, IDN_MAX_LENGTH);
curlx_unicodefree(in_w);
if(chars) {
char *mstr = curlx_convert_wchar_to_UTF8(punycode);
if(mstr) {
*out = strdup(mstr);
curlx_unicodefree(mstr);
if(*out)
success = TRUE;
}
}
}
return success;
}
bool curl_win32_ascii_to_idn(const char *in, char **out)
{
bool success = FALSE;
wchar_t *in_w = curlx_convert_UTF8_to_wchar(in);
if(in_w) {
size_t in_len = wcslen(in_w) + 1;
wchar_t unicode[IDN_MAX_LENGTH];
int chars = IdnToUnicode(0, in_w, curlx_uztosi(in_len),
unicode, IDN_MAX_LENGTH);
curlx_unicodefree(in_w);
if(chars) {
char *mstr = curlx_convert_wchar_to_UTF8(unicode);
if(mstr) {
*out = strdup(mstr);
curlx_unicodefree(mstr);
if(*out)
success = TRUE;
}
}
}
return success;
}
#endif /* USE_WIN32_IDN */
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