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curl/lib/idn_win32.c
Yang Tse 5a053ffe80 build: fix circular header inclusion with other packages
This commit renames lib/setup.h to lib/curl_setup.h and
renames lib/setup_once.h to lib/curl_setup_once.h.

Removes the need and usage of a header inclusion guard foreign
to libcurl. [1]

Removes the need and presence of an alarming notice we carried
in old setup_once.h [2]

----------------------------------------

1 - lib/setup_once.h used __SETUP_ONCE_H macro as header inclusion guard
    up to commit ec691ca3 which changed this to HEADER_CURL_SETUP_ONCE_H,
    this single inclusion guard is enough to ensure that inclusion of
    lib/setup_once.h done from lib/setup.h is only done once.

    Additionally lib/setup.h has always used __SETUP_ONCE_H macro to
    protect inclusion of setup_once.h even after commit ec691ca3, this
    was to avoid a circular header inclusion triggered when building a
    c-ares enabled version with c-ares sources available which also has
    a setup_once.h header. Commit ec691ca3 exposes the real nature of
    __SETUP_ONCE_H usage in lib/setup.h, it is a header inclusion guard
    foreign to libcurl belonging to c-ares's setup_once.h

    The renaming this commit does, fixes the circular header inclusion,
    and as such removes the need and usage of a header inclusion guard
    foreign to libcurl. Macro __SETUP_ONCE_H no longer used in libcurl.

2 - Due to the circular interdependency of old lib/setup_once.h and the
    c-ares setup_once.h header, old file lib/setup_once.h has carried
    back from 2006 up to now days an alarming and prominent notice about
    the need of keeping libcurl's and c-ares's setup_once.h in sync.

    Given that this commit fixes the circular interdependency, the need
    and presence of mentioned notice is removed.

    All mentioned interdependencies come back from now old days when
    the c-ares project lived inside a curl subdirectory. This commit
    removes last traces of such fact.
2013-01-09 00:49:50 +01:00

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2.5 KiB
C

/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2012, 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 "curl_setup.h"
#ifdef USE_WIN32_IDN
#include "curl_multibyte.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
#ifdef WANT_IDN_PROTOTYPES
WINBASEAPI int WINAPI IdnToAscii(DWORD, const WCHAR *, int, WCHAR *, int);
WINBASEAPI int WINAPI IdnToUnicode(DWORD, const WCHAR *, int, WCHAR *, int);
#endif
#define IDN_MAX_LENGTH 255
int curl_win32_idn_to_ascii(const char *in, char **out);
int curl_win32_ascii_to_idn(const char *in, size_t in_len, char **out_utf8);
int curl_win32_idn_to_ascii(const char *in, char **out)
{
wchar_t *in_w = Curl_convert_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 = Curl_convert_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)
{
(void)in_len; /* unused */
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 {
*out_utf8 = Curl_convert_wchar_to_UTF8(unicode);
if(!*out_utf8)
return 0;
}
}
return 1;
}
#endif /* USE_WIN32_IDN */