src/helper/fileio.h

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007,2008 Øyvind Harboe                                      *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   This program is free software; you can redistribute it and/or modify  *
   9  *   it under the terms of the GNU General Public License as published by  *
  10  *   the Free Software Foundation; either version 2 of the License, or     *
  11  *   (at your option) any later version.                                   *
  12  *                                                                         *
  13  *   This program is distributed in the hope that it will be useful,       *
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  16  *   GNU General Public License for more details.                          *
  17  *                                                                         *
  18  *   You should have received a copy of the GNU General Public License     *
  19  *   along with this program; if not, write to the                         *
  20  *   Free Software Foundation, Inc.,                                       *
  21  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  22  ***************************************************************************/
  23 #ifndef FILEIO_H
  24 #define FILEIO_H
  25
  26 #define FILEIO_MAX_ERROR_STRING         (128)
  27
  28 #include "types.h"
  29
  30 #include <stdio.h>
  31 #include <unistd.h>
  32 #include <stdlib.h>
  33 #include <sys/types.h>
  34 #include <sys/stat.h>
  35 #include <errno.h>
  36 #include <ctype.h>
  37
  38 enum fileio_type
  39 {
  40         FILEIO_TEXT,
  41         FILEIO_BINARY,
  42 };
  43
  44
  45 enum fileio_access
  46 {
  47         FILEIO_READ,            /* open for reading, position at beginning */
  48         FILEIO_WRITE,           /* open for writing, position at beginning */
  49         FILEIO_READWRITE,       /* open for writing, position at beginning, allow reading */
  50         FILEIO_APPEND,          /* open for writing, position at end */
  51         FILEIO_APPENDREAD,      /* open for writing, position at end, allow reading */
  52 };
  53
  54 typedef struct fileio_s
  55 {
  56         char *url;
  57         long long size;
  58         enum fileio_type type;
  59         enum fileio_access access;
  60         FILE *file;
  61 } fileio_t;
  62
  63 extern int fileio_write(fileio_t *fileio, u32 size, u8 *buffer, u32 *size_written);
  64 extern int fileio_read(fileio_t *fileio, u32 size, u8 *buffer, u32 *size_read);
  65 extern int fileio_fgets(fileio_t *fileio, u32 size, char *buffer);
  66 extern int fileio_seek(fileio_t *fileio, u32 position);
  67 extern int fileio_close(fileio_t *fileio);
  68 extern int fileio_open(fileio_t *fileio, char *url, enum fileio_access access, enum fileio_type type);
  69 extern int fileio_read_u32(fileio_t *fileio, u32 *data);
  70 extern int fileio_write_u32(fileio_t *fileio, u32 data);
  71
  72 #define ERROR_FILEIO_LOCATION_UNKNOWN   (-1200)
  73 #define ERROR_FILEIO_NOT_FOUND                  (-1201)
  74 #define ERROR_FILEIO_OPERATION_FAILED           (-1202)
  75 #define ERROR_FILEIO_ACCESS_NOT_SUPPORTED       (-1203)
  76 #define ERROR_FILEIO_RESOURCE_TYPE_UNKNOWN      (-1204)
  77 #define ERROR_FILEIO_OPERATION_NOT_SUPPORTED    (-1205)
  78
  79 #endif /* FILEIO_H */