rem: return vfs_open(buf, st, omode, true);
add: return vfs_open(buffer, omode, true);
context: sys_open(const char *path, stream_type st, int omode){	char buf[SYS_MAX_PATH_LEN+1];	strncpy(buf, path, SYS_MAX_PATH_LEN);	buf[SYS_MAX_PATH_LEN] = 0;	return vfs_open(buf, st, omode, true);}