2016-10-05 09:09:57 +02:00
|
|
|
/*****************************************************************************
|
|
|
|
* realpath.c: POSIX realpath replacement
|
|
|
|
*****************************************************************************
|
|
|
|
* Copyright © 2016 VLC authors and VideoLAN
|
|
|
|
*
|
|
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
|
|
* under the terms of the GNU Lesser General Public License as published by
|
|
|
|
* the Free Software Foundation; either version 2.1 of the License, or
|
|
|
|
* (at your option) any later version.
|
|
|
|
*
|
|
|
|
* This program is distributed in the hope that it will be useful,
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
* GNU Lesser General Public License for more details.
|
|
|
|
*
|
|
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
|
|
|
|
*****************************************************************************/
|
|
|
|
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
|
|
# include <config.h>
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <errno.h>
|
|
|
|
#ifdef _WIN32
|
|
|
|
#include <windows.h>
|
|
|
|
#endif
|
|
|
|
|
|
|
|
char *realpath(const char * restrict relpath, char * restrict resolved_path)
|
|
|
|
{
|
|
|
|
if (relpath == NULL)
|
|
|
|
{
|
|
|
|
errno = EINVAL;
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef _WIN32
|
2018-02-22 20:50:09 +01:00
|
|
|
size_t len = MultiByteToWideChar( CP_UTF8, 0, relpath, -1, NULL, 0 );
|
2016-10-05 09:09:57 +02:00
|
|
|
if (len == 0)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
wchar_t *wrelpath = malloc(len * sizeof (wchar_t));
|
|
|
|
if (wrelpath == NULL)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
MultiByteToWideChar( CP_UTF8, 0, relpath, -1, wrelpath, len );
|
|
|
|
|
|
|
|
wchar_t *wfullpath = _wfullpath( NULL, wrelpath, _MAX_PATH );
|
|
|
|
free(wrelpath);
|
|
|
|
if (wfullpath != NULL)
|
|
|
|
{
|
2018-02-22 20:50:09 +01:00
|
|
|
len = WideCharToMultiByte( CP_UTF8, 0, wfullpath, -1, NULL, 0, NULL, NULL );
|
2016-10-05 09:09:57 +02:00
|
|
|
if (len != 0)
|
|
|
|
{
|
|
|
|
if (resolved_path != NULL)
|
|
|
|
len = len >= _MAX_PATH ? _MAX_PATH : len;
|
|
|
|
else
|
|
|
|
resolved_path = (char *)malloc(len);
|
|
|
|
|
|
|
|
if (resolved_path != NULL)
|
|
|
|
WideCharToMultiByte( CP_UTF8, 0, wfullpath, -1, resolved_path, len, NULL, NULL );
|
|
|
|
free(wfullpath);
|
|
|
|
return resolved_path;
|
|
|
|
}
|
|
|
|
free(wfullpath);
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
(void)resolved_path;
|
|
|
|
#endif
|
|
|
|
errno = EACCES;
|
|
|
|
return NULL;
|
|
|
|
}
|