16 	int fd;  in set_immutable()  local
20 	fd = open(path, O_RDONLY);  in set_immutable()
21 	if (fd < 0)  in set_immutable()
22 		return fd;  in set_immutable()
24 	rc = ioctl(fd, FS_IOC_GETFLAGS, &flags);  in set_immutable()
27 		close(fd);  in set_immutable()
37 	rc = ioctl(fd, FS_IOC_SETFLAGS, &flags);  in set_immutable()
39 	close(fd);  in set_immutable()
47 	int fd;  in get_immutable()  local
51 	fd = open(path, O_RDONLY);  in get_immutable()
52 	if (fd < 0)  in get_immutable()
53 		return fd;  in get_immutable()
55 	rc = ioctl(fd, FS_IOC_GETFLAGS, &flags);  in get_immutable()
58 		close(fd);  in get_immutable()
62 	close(fd);  in get_immutable()
72 	int fd, rc;  in main()  local
89 	fd = open(path, O_WRONLY | O_CREAT, 0600);  in main()
90 	if (fd < 0) {  in main()
95 	rc = write(fd, buf, sizeof(buf));  in main()
101 	close(fd);  in main()
115 	fd = open(path, O_RDONLY);  in main()
116 	if (fd < 0) {  in main()
126 	rc = read(fd, buf, sizeof(buf));  in main()