17  * Test that "mount -t proc -o subset=pid" hides everything but pids,
18  * /proc/self and /proc/thread-self.
21 #include <assert.h>
42 	if (unshare(CLONE_NEWNS) == -1) {  in make_private_proc()
48 	if (mount(NULL, "/", NULL, MS_PRIVATE|MS_REC, NULL) == -1) {  in make_private_proc()
51 	if (mount(NULL, "/proc", "proc", 0, "subset=pid") == -1) {  in make_private_proc()
78 	assert(d);  in main()
80 	struct dirent *de;  in main()  local
87 	while ((de = readdir(d))) {  in main()
88 		if (streq(de->d_name, ".")) {  in main()
89 			assert(!dot);  in main()
91 			assert(de->d_type == DT_DIR);  in main()
92 		} else if (streq(de->d_name, "..")) {  in main()
93 			assert(!dot_dot);  in main()
95 			assert(de->d_type == DT_DIR);  in main()
96 		} else if (streq(de->d_name, "self")) {  in main()
97 			assert(!self);  in main()
99 			assert(de->d_type == DT_LNK);  in main()
100 		} else if (streq(de->d_name, "thread-self")) {  in main()
101 			assert(!thread_self);  in main()
103 			assert(de->d_type == DT_LNK);  in main()
105 			if (!string_is_pid(de->d_name)) {  in main()
106 				fprintf(stderr, "d_name '%s'\n", de->d_name);  in main()
107 				assert(0);  in main()
109 			assert(de->d_type == DT_DIR);  in main()
115 	assert(rv == -1 && errno == ENOENT);  in main()
118 	assert(fd == -1 && errno == ENOENT);  in main()