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https://github.com/id-Software/Wolf3D-iOS.git
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Source release of Wolfenstein 3D Classic Platinum for iOS, 2.1
This commit is contained in:
Travis Bradshaw
398
wolf3d/wolfextractor/filesys/win32/win_file.c
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398
wolf3d/wolfextractor/filesys/win32/win_file.c
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/*
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Copyright (C) 2004 Michael Liebscher
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*
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* win_file.c: Handles non-portable file services.
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*
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* Author: Michael Liebscher <johnnycanuck@users.sourceforge.net>
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* Date: 2004
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*
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*
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*/
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#include <windows.h>
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#include <time.h>
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#include "../file.h"
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#include "../../string/com_string.h"
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#include "../../../../common/arch.h"
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#include "../../../../common/common_utils.h"
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PRIVATE char findbase[ MAX_PATH ];
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PRIVATE char findpath[ MAX_PATH ];
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PRIVATE HANDLE FindHandle;
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/*
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-----------------------------------------------------------------------------
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Function: FS_Mkdir() -Creates a new directory.
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Parameters: dirname -[in] Pointer to a NUL-terminated string that specifies
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the path of the directory to be created.
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Returns: On success nonzero, otherwise zero.
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Notes:
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-----------------------------------------------------------------------------
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*/
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PUBLIC W8 FS_Mkdir( const char *dirname )
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{
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BOOL ret_val = CreateDirectory( dirname, NULL );
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if( ret_val == 0 && GetLastError() == ERROR_ALREADY_EXISTS )
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{
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return 1;
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}
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return (W8)ret_val;
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}
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/*
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-----------------------------------------------------------------------------
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Function: FS_ChangeCurrentDirectory() -Changes the current directory
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Parameters: path -[in] Pointer to a NUL-terminated string that specifies
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the path to the new directory.
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Returns: On success nonzero, otherwise zero.
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Notes:
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-----------------------------------------------------------------------------
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*/
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PUBLIC W8 FS_ChangeCurrentDirectory( const char *path )
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{
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return SetCurrentDirectory( path );
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}
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/*
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-----------------------------------------------------------------------------
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Function: FS_FileTimeToUnixTime() -Converts file time to UNIX time format.
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Parameters: FILETIME -[in] Pointer to a FILETIME structure containing the
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file time to convert to UNIX date and time format.
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Returns: On success nonzero, otherwise zero.
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Notes:
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-----------------------------------------------------------------------------
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*/
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PRIVATE W32 FS_FileTimeToUnixTime( FILETIME *ft )
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{
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time_t days;
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SYSTEMTIME st;
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static const W16 ydays[] =
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{ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 };
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if( ! FileTimeToSystemTime( ft, &st ) )
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{
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return 0;
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}
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// Protection from overflow
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if( (ft->dwHighDateTime < 0x019DB1DEUL) ||
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((ft->dwHighDateTime == 0x019DB1DEUL) &&
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(ft->dwLowDateTime < 0xD53E8000UL)) )
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{
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return 0;
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}
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if( (ft->dwHighDateTime > 0x0236485EUL) ||
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((ft->dwHighDateTime == 0x0236485EUL) &&
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(ft->dwLowDateTime > 0xD4A5E980UL)) )
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{
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return 0;
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}
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#define leap(y) (((y)%4 == 0 && (y)%100 != 0) || (y)%400 == 0)
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#define nleap(y) (((y)-1969)/4 - ((y)-1901)/100 + ((y)-1601)/400)
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// set 'days' to the number of days into the year
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days = st.wDay - 1 + ydays[ st.wMonth-1 ] + (st.wMonth > 2 && leap( st.wYear ));
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// now set 'days' to the number of days since 1 Jan 1970
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days += 365 * (time_t)(st.wYear - 1970) + (time_t)(nleap(st.wYear));
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return (time_t)(86400L * days + 3600L * (time_t)st.wHour +
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(time_t)(60 * st.wMinute + st.wSecond));
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}
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/*
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-----------------------------------------------------------------------------
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Function: FS_GetFileAttributes() -Retrieves attributes for a specified file
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or directory.
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Parameters: filename -[in] Pointer to a NUL-terminated string that
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specifies a file or directory.
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fs -[in] Pointer to a filestats structure that receives the
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attribute information.
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Returns: On success true, otherwise false.
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Notes:
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-----------------------------------------------------------------------------
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*/
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PUBLIC _boolean FS_GetFileAttributes( const char *filename, struct filestats *fs )
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{
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WIN32_FILE_ATTRIBUTE_DATA fdata;
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fs->attributes = 0;
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if( ! GetFileAttributesEx( filename, GetFileExInfoStandard, &fdata ) )
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{
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return false;
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}
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if( fdata.dwFileAttributes & FILE_ATTRIBUTE_ARCHIVE )
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fs->attributes |= FA_ARCH;
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if( fdata.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN )
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fs->attributes |= FA_HIDDEN;
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if( fdata.dwFileAttributes & FILE_ATTRIBUTE_READONLY )
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fs->attributes |= FA_RDONLY;
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if( fdata.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY )
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fs->attributes |= FA_DIR;
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if( fdata.dwFileAttributes & FILE_ATTRIBUTE_SYSTEM )
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fs->attributes |= FA_SYSTEM;
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// Convert FILETIME to UNIX time.
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fs->creationtime = FS_FileTimeToUnixTime( &fdata.ftCreationTime );
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fs->lastaccesstime = FS_FileTimeToUnixTime( &fdata.ftLastAccessTime );
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fs->lastwritetime = FS_FileTimeToUnixTime( &fdata.ftLastWriteTime );
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return true;
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}
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/*
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-----------------------------------------------------------------------------
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Function: CompareAttributes() -Compare directory and file attributes.
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Parameters: found -[in] Specifies the file attributes of the file found.
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musthave -[in] File or directory must have these attributes.
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canthave- [in] File or directory can not have these attributes.
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Returns: On success true, otherwise false.
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Notes:
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-----------------------------------------------------------------------------
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*/
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PRIVATE _boolean CompareAttributes( W32 found, W32 musthave, W32 canthave )
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{
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if( ( found & FILE_ATTRIBUTE_READONLY ) && ( canthave & FA_RDONLY ) )
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return false;
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if( ( found & FILE_ATTRIBUTE_HIDDEN ) && ( canthave & FA_HIDDEN ) )
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return false;
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if( ( found & FILE_ATTRIBUTE_SYSTEM ) && ( canthave & FA_SYSTEM ) )
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return false;
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if( ( found & FILE_ATTRIBUTE_DIRECTORY ) && ( canthave & FA_DIR ) )
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return false;
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if( ( found & FILE_ATTRIBUTE_ARCHIVE ) && ( canthave & FA_ARCH ) )
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return false;
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if( ( musthave & FA_RDONLY ) && !( found & FILE_ATTRIBUTE_READONLY ) )
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return false;
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if( ( musthave & FA_HIDDEN ) && !( found & FILE_ATTRIBUTE_HIDDEN ) )
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return false;
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if( ( musthave & FA_SYSTEM ) && !( found & FILE_ATTRIBUTE_SYSTEM ) )
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return false;
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if( ( musthave & FA_DIR ) && !( found & FILE_ATTRIBUTE_DIRECTORY ) )
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return false;
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if( ( musthave & FA_ARCH ) && !( found & FILE_ATTRIBUTE_ARCHIVE ) )
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return false;
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return true;
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}
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/*
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-----------------------------------------------------------------------------
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Function: FS_FindFirstFile() -Searches a directory for a file.
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Parameters: path -[in] Pointer to a NUL-terminated string that specifies
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a valid directory or path and file name.
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musthave -[in] File or directory must have these attributes.
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canthave- [in] File or directory can not have these attributes.
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Returns: On success string of file name or directory, otherwise NULL.
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Notes:
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-----------------------------------------------------------------------------
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*/
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PUBLIC char *FS_FindFirst( const char *path, W32 musthave, W32 canthave )
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{
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WIN32_FIND_DATA FindFileData;
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if( FindHandle )
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{
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printf( "FS_FindFirst without close\n" );
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return NULL;
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}
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FS_FilePath( path, findbase );
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FindHandle = FindFirstFile( path, &FindFileData );
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if( FindHandle == INVALID_HANDLE_VALUE )
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{
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return NULL;
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}
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if( CompareAttributes( FindFileData.dwFileAttributes, musthave, canthave ) )
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{
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if( ! *findbase )
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{
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cs_strlcpy( findpath, FindFileData.cFileName, sizeof( findpath ) );
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}
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else
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{
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cs_snprintf( findpath, sizeof( findpath ), "%s/%s", findbase, FindFileData.cFileName );
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}
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return findpath;
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}
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return FS_FindNext( musthave, canthave );
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}
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/*
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-----------------------------------------------------------------------------
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Function: FS_FindNext -Continues a file search from a previous call to
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the FS_FindFirst function.
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Parameters: musthave -[in] File or directory must have these attributes.
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canthave- [in] File or directory can not have these attributes.
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Returns: On success string of file name or directory, otherwise NULL.
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Notes:
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-----------------------------------------------------------------------------
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*/
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PUBLIC char *FS_FindNext( W32 musthave, W32 canthave )
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{
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WIN32_FIND_DATA FindFileData;
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if( FindHandle == INVALID_HANDLE_VALUE )
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{
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return NULL;
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}
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while( 1 )
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{
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if( FindNextFile( FindHandle, &FindFileData ) == 0 )
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{
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return NULL;
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}
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if( CompareAttributes( FindFileData.dwFileAttributes, musthave, canthave ) )
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{
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break;
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}
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}
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if( ! *findbase )
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{
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cs_snprintf( findpath, sizeof( findpath ), "%s", FindFileData.cFileName );
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}
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else
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{
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cs_snprintf( findpath, sizeof( findpath ), "%s/%s", findbase, FindFileData.cFileName );
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}
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return findpath;
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}
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/*
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-----------------------------------------------------------------------------
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Function: FS_FindClose() -Closes the search handle.
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Parameters: Nothing.
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Returns: Nothing.
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Notes:
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-----------------------------------------------------------------------------
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*/
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PUBLIC void FS_FindClose( void )
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{
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if( FindHandle != INVALID_HANDLE_VALUE )
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{
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FindClose( FindHandle );
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}
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FindHandle = 0;
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}
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/*
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-----------------------------------------------------------------------------
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Function: FS_DeleteFile() -Deletes an existing file.
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Parameters: filename -[in] Pointer to a NUL-terminated string that
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specifies the file to be deleted.
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Returns: If successful the return value is nonzero, otherwise zero.
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Notes:
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-----------------------------------------------------------------------------
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*/
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PUBLIC _boolean FS_DeleteFile( const char *filename )
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{
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return DeleteFile( filename );
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}
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/*
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-----------------------------------------------------------------------------
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Function: FS_RemoveDirectory() -Deletes an existing empty directory.
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Parameters: pathname -[in] Pointer to a NUL-terminated string that
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specifies the directory to be deleted.
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Returns: If successful the return value is nonzero, otherwise zero.
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Notes:
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-----------------------------------------------------------------------------
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*/
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PUBLIC _boolean FS_RemoveDirectory( const char *pathname )
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{
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return RemoveDirectory( pathname );
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}
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