/* * File : syscall_open.c * This file is part of RT-Thread RTOS * COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team * * 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 2 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * Change Logs: * Date Author Notes * 2015-01-28 Bernard first version */ #include #include #ifdef RT_USING_DFS #include #endif #pragma module_name = "?__open" int __open(const char *filename, int mode) { if (mode & _LLIO_CREAT) { } if (mode & _LLIO_TEXT) { /* we didn't support text mode */ } switch (mode & _LLIO_RDWRMASK) { case _LLIO_RDONLY: /* The file should be opened for read only. */ break; case _LLIO_WRONLY: /* The file should be opened for write only. */ break; case _LLIO_RDWR: /* The file should be opened for both reads and writes. */ break; default: return -1; } return handle; }