#ifdef REENTRANT_SYSCALLS_PROVIDED
//---------------------------------------------------------------------------------
int _DEFUN (_open_r, (r, file, flags, mode),
			struct _reent * r _AND
			const char *file  _AND
			int   flags _AND
			int   mode) {
//---------------------------------------------------------------------------------
#else
//---------------------------------------------------------------------------------
int _DEFUN (_open, (file, flags, mode),
        const char *file  _AND
        int   flags _AND
        int   mode) {
//---------------------------------------------------------------------------------
	struct _reent *r = _REENT;
#endif
	__handle *handle;
	int dev,fd;

	dev = FindDevice(file);

	fd = -1;
	handle = (__handle *)-1;
	if(dev!=-1 && devoptab_list[dev]->open_r) {

		handle = (__handle *)malloc( sizeof(__handle) + devoptab_list[dev]->structSize );

		if ( NULL != handle ) {
			handle->device = dev;
			handle->fileStruct = ((void *)handle) + sizeof(__handle);

			fd = devoptab_list[dev]->open_r(r, handle->fileStruct, file, flags, mode);

			if ( fd == -1 ) {
				free(handle);
				handle = (__handle *)-1;
			}
		} else {
			r->_errno = ENOSR;
			handle = (__handle *)-1;
		}
	} else {
		r->_errno = ENOSYS;
	}

	return (int)handle;
}