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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2011, 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 http://curl.haxx.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.
*
***************************************************************************/
/*
* IDN conversions using Windows kernel32 and normaliz libraries.
*/
#include "setup.h"
#ifdef USE_WIN32_IDN
#include <tchar.h>
#ifdef WANT_IDN_PROTOTYPES
WINBASEAPI int WINAPI IdnToAscii(DWORD, LPCWSTR, int, LPWSTR, int);
WINBASEAPI int WINAPI IdnToUnicode(DWORD, LPCWSTR, int, LPWSTR, int);
#endif
#define IDN_MAX_LENGTH 255
static wchar_t *_curl_win32_UTF8_to_wchar(const char *str_utf8)
{
wchar_t *str_w = NULL;
if(str_utf8) {
int str_w_len = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS,
str_utf8, -1, NULL, 0);
if(str_w_len) {
str_w = malloc(str_w_len * sizeof(wchar_t));
if(str_w) {
if(MultiByteToWideChar(CP_UTF8, 0, str_utf8, -1, str_w,
str_w_len) == 0) {
free(str_w);
str_w = NULL;
}
}
}
}
return str_w;
}
static const char *_curl_win32_wchar_to_UTF8(const wchar_t *str_w)
{
char *str_utf8 = NULL;
if(str_w) {
size_t str_utf8_len = WideCharToMultiByte(CP_UTF8, 0, str_w, -1, NULL,
0, NULL, NULL);
if(str_utf8_len) {
str_utf8 = malloc(str_utf8_len * sizeof(wchar_t));
if(str_utf8) {
if(WideCharToMultiByte(CP_UTF8, 0, str_w, -1, str_utf8, str_utf8_len,
NULL, FALSE) == 0) {
(void) GetLastError();
free((void *)str_utf8);
str_utf8 = NULL;
}
}
}
else {
(void) GetLastError();
}
}
return str_utf8;
}
int curl_win32_idn_to_ascii(const char *in, char **out)
{
wchar_t *in_w = _curl_win32_UTF8_to_wchar(in);
if(in_w) {
wchar_t punycode[IDN_MAX_LENGTH];
if(IdnToAscii(0, in_w, -1, punycode, IDN_MAX_LENGTH) == 0) {
wprintf(L"ERROR %d converting to Punycode\n", GetLastError());
free(in_w);
return 0;
}
free(in_w);
*out = (char *)_curl_win32_wchar_to_UTF8(punycode);
if(!(*out)) {
return 0;
}
}
return 1;
}
int curl_win32_ascii_to_idn(const char *in, size_t in_len, char **out_utf8)
{
if(in) {
WCHAR unicode[IDN_MAX_LENGTH];
if(IdnToUnicode(0, (wchar_t *)in, -1, unicode, IDN_MAX_LENGTH) == 0) {
wprintf(L"ERROR %d converting to Punycode\n", GetLastError());
return 0;
}
else {
const char *out_utf8 = _curl_win32_wchar_to_UTF8(unicode);
if(!out_utf8) {
return 0;
}
}
}
return 1;
}
#endif /* USE_WIN32_IDN */
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