mirror of
https://github.com/id-Software/Wolf3D-iOS.git
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338 lines
8.2 KiB
C
338 lines
8.2 KiB
C
/*
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Copyright (C) 2004 Michael Liebscher
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Copyright (C) 1997-2001 Id Software, Inc.
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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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* unix_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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* Acknowledgement:
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* Portion of this code was derived from Quake II, and was originally
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* written by Id Software, Inc.
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*
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <stdio.h>
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#include <dirent.h>
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#include <unistd.h>
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#include <string.h>
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#include "../../../../common/arch.h"
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#include "../../../../common/common_utils.h"
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#include "../../string/com_string.h"
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#include "glob.h"
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#include "../file.h"
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PRIVATE char findbase[ 128 ];
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PRIVATE char findpath[ 128 ];
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PRIVATE char findpattern[ 128 ];
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PRIVATE DIR *fdir;
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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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int ret_val = mkdir( dirname, S_IRUSR | S_IWUSR | S_IXUSR );
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if( ret_val == -1 && errno == EEXIST )
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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 ! chdir( path );
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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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struct stat st;
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fs->attributes = 0;
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if( stat( filename, &st ) == -1 )
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{
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return false;
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}
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if( st.st_mode & S_IFDIR )
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{
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fs->attributes |= FA_DIR;
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}
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fs->creationtime = st.st_ctime;
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fs->lastaccesstime = st.st_atime;
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fs->lastwritetime = st.st_ctime;
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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: path -[in] Specifies the path to compare file attributes.
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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( const char *path, W32 musthave, W32 canthave )
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{
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struct stat st;
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if( stat( path, &st ) == -1 )
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{
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return false;
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}
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if( ( st.st_mode & S_IFDIR ) && ( canthave & FA_DIR ) )
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{
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return false;
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}
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if( ( musthave & FA_DIR ) && !( st.st_mode & S_IFDIR ) )
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{
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return false;
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}
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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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struct dirent *d;
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char *p;
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if( fdir )
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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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cs_strlcpy( findpattern, FS_SkipPath( path ), sizeof( findpattern ) );
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if( ! *findbase )
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{
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if( (fdir = opendir( "." )) == NULL )
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{
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return NULL;
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}
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}
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else
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{
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if( (fdir = opendir( findbase )) == NULL )
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{
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return NULL;
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}
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}
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while( (d = readdir( fdir )) != NULL )
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{
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if( ! *findpattern || glob_match( findpattern, d->d_name ) )
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{
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if( ! *findbase )
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{
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cs_strlcpy( findpath, d->d_name, 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, d->d_name );
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}
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if( CompareAttributes( findpath, musthave, canthave ) )
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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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return NULL;
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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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struct dirent *d;
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if( fdir == NULL )
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{
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return NULL;
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}
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while( (d = readdir( fdir ) ) != NULL)
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{
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if( ! *findpattern || glob_match( findpattern, d->d_name ) )
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{
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if( ! *findbase )
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{
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cs_strlcpy( findpath, d->d_name, 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, d->d_name );
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}
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if( CompareAttributes( findpath, musthave, canthave ) )
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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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return NULL;
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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( fdir )
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{
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closedir( fdir );
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}
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fdir = NULL;
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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( ! unlink( 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( ! rmdir( pathname ) );
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}
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