15 	int fd;  in set_immutable()  local
19 	fd = open(path, O_RDONLY);  in set_immutable()
20 	if (fd < 0)  in set_immutable()
21 		return fd;  in set_immutable()
23 	rc = ioctl(fd, FS_IOC_GETFLAGS, &flags);  in set_immutable()
26 		close(fd);  in set_immutable()
36 	rc = ioctl(fd, FS_IOC_SETFLAGS, &flags);  in set_immutable()
38 	close(fd);  in set_immutable()
46 	int fd;  in get_immutable()  local
50 	fd = open(path, O_RDONLY);  in get_immutable()
51 	if (fd < 0)  in get_immutable()
52 		return fd;  in get_immutable()
54 	rc = ioctl(fd, FS_IOC_GETFLAGS, &flags);  in get_immutable()
57 		close(fd);  in get_immutable()
61 	close(fd);  in get_immutable()
71 	int fd, rc;  in main()  local
88 	fd = open(path, O_WRONLY | O_CREAT, 0600);  in main()
89 	if (fd < 0) {  in main()
94 	rc = write(fd, buf, sizeof(buf));  in main()
100 	close(fd);  in main()
114 	fd = open(path, O_RDONLY);  in main()
115 	if (fd < 0) {  in main()
125 	rc = read(fd, buf, sizeof(buf));  in main()