rem: return EINVAL;
add: return FS_EINVAL;
context: do_symlink(int argc, char **argv){	char target[B_PATH_NAME_LENGTH];	char *source;	status_t status;	if (argc < 3) {		printf("usage: symlink <source> <target>\n");		return EINVAL;	}	source = argv[1];	strcpy(target, "/myfs/");	strcpy(target + 6, argv[2]);	status = sys_symlink(1, source, -1, target);	if (status != B_OK)		printf("symlink failed with error: %s\n", strerror(status));	return status;}