CfgUSBLoader/cios/dip_frag/file.c
2015-01-17 10:11:08 +00:00

62 lines
1.2 KiB
C

/*
* DIP plugin for Custom IOS.
*
* Copyright (C) 2008-2010 Waninkoko, WiiGator.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "syscalls.h"
/* Variables */
static s32 fd = -1;
s32 File_Open(const char *path)
{
/* Open file */
fd = os_open(path, 0);
if (fd < 0)
return fd;
return 0;
}
void File_Close(void)
{
/* Close file */
if (fd >= 0)
os_close(fd);
/* Reset descriptor */
fd = -1;
}
s32 File_Read(void *buffer, u32 len, u32 offset)
{
s32 ret;
/* Seek file */
ret = os_seek(fd, offset << 2, 0);
if (ret < 0)
return ret;
/* Read file */
ret = os_read(fd, buffer, len);
if (ret < 0)
return ret;
return 0;
}