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https://github.com/VCMP-SqMod/SqMod.git
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4a6bfc086c
Switched to POCO library for unified platform/library interface. Deprecated the external module API. It was creating more problems than solving. Removed most built-in libraries in favor of system libraries for easier maintenance. Cleaned and secured code with help from static analyzers.
102 lines
3.1 KiB
C
102 lines
3.1 KiB
C
/*
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* $Id: wce_access.c,v 1.0 2006/11/29 16:37:06 stephaned Exp $
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*
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* Defines _access(), _waccess() functions.
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*
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* Created by Stéphane Dunand (sdunand@sirap.fr)
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*
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* Copyright (c) 2006 Stéphane Dunand
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom
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* the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH
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* THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* MIT License:
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* http://opensource.org/licenses/mit-license.php
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*
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*/
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#include <wce_io.h>
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#include <wce_errno.h>
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#include <shellapi.h>
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/*******************************************************************************
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* wceex_waccess - Determine file-access permission
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*
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* Description:
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*
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* Return:
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* 0 if the file has the given mode
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* –1 if the named file does not exist or is not accessible in the given mode
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* and errno set as :
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* EACCES file's permission setting does not allow specified access
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* ENOENT filename or path not found
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*
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* Reference:
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*
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*******************************************************************************/
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int wceex_waccess( const wchar_t *path, int mode )
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{
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SHFILEINFO fi;
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if( !SHGetFileInfo( path, 0, &fi, sizeof(fi), SHGFI_ATTRIBUTES ) )
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{
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errno = ENOENT;
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return -1;
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}
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// existence ?
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if( mode == 0 )
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return 0;
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// write permission ?
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if( mode & 2 )
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{
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if( fi.dwAttributes & SFGAO_READONLY )
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{
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errno = EACCES;
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return -1;
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}
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}
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return 0;
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}
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/*******************************************************************************
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* wceex_access - Determine file-access permission
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*
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* Description:
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*
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* Return:
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* 0 if the file has the given mode
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* –1 if the named file does not exist or is not accessible in the given mode
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* and errno set as :
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* EACCES file's permission setting does not allow specified access
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* ENOENT filename or path not found
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*
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* Reference:
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*
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*******************************************************************************/
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int wceex_access( const char *path, int mode )
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{
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wchar_t wpath[_MAX_PATH];
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if( !MultiByteToWideChar( CP_ACP, 0, path, -1, wpath, _MAX_PATH ) )
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{
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errno = ENOENT;
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return -1;
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}
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return wceex_waccess( wpath, mode );
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}
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