18 	int ret;  in terminal_dup2()  local
20 	ret = dup2(duplicate, original);  in terminal_dup2()
21 	if (ret < 0)  in terminal_dup2()
44 	int ret;  in login_pty()  local
48 	ret = ioctl(fd, TIOCSCTTY, NULL);  in login_pty()
49 	if (ret < 0)  in login_pty()
52 	ret = terminal_set_stdfds(fd);  in login_pty()
53 	if (ret < 0)  in login_pty()
64 	int status, ret;  in wait_for_pid()  local
67 	ret = waitpid(pid, &status, 0);  in wait_for_pid()
68 	if (ret == -1) {  in wait_for_pid()
73 	if (ret != pid)  in wait_for_pid()
84 	int ret;  in resolve_procfd_symlink()  local
87 	ret = snprintf(procfd, 4096, "/proc/self/fd/%d", fd);  in resolve_procfd_symlink()
88 	if (ret < 0 || ret >= 4096)  in resolve_procfd_symlink()
91 	ret = readlink(procfd, buf, buflen);  in resolve_procfd_symlink()
92 	if (ret < 0 || (size_t)ret >= buflen)  in resolve_procfd_symlink()
95 	buf[ret] = '\0';  in resolve_procfd_symlink()
102 	int ret;  in do_tiocgptpeer()  local
116 	ret = unlockpt(master);  in do_tiocgptpeer()
117 	if (ret < 0) {  in do_tiocgptpeer()
145 		ret = login_pty(slave);  in do_tiocgptpeer()
146 		if (ret < 0) {  in do_tiocgptpeer()
151 		ret = resolve_procfd_symlink(STDIN_FILENO, buf, sizeof(buf));  in do_tiocgptpeer()
152 		if (ret < 0) {  in do_tiocgptpeer()
172 	ret = wait_for_pid(pid);  in do_tiocgptpeer()
173 	if (ret < 0)  in do_tiocgptpeer()
190 	int ret = -1;  in verify_non_standard_devpts_mount()  local
194 	ret = umount("/dev/pts");  in verify_non_standard_devpts_mount()
195 	if (ret < 0) {  in verify_non_standard_devpts_mount()
210 	ret = mount("devpts", mntpoint, "devpts", MS_NOSUID | MS_NOEXEC,  in verify_non_standard_devpts_mount()
212 	if (ret < 0) {  in verify_non_standard_devpts_mount()
220 	ret = snprintf(ptmx, sizeof(ptmx), "%s/ptmx", devpts);  in verify_non_standard_devpts_mount()
221 	if (ret < 0 || (size_t)ret >= sizeof(ptmx)) {  in verify_non_standard_devpts_mount()
226 	ret = do_tiocgptpeer(ptmx, mntpoint);  in verify_non_standard_devpts_mount()
228 	if (ret < 0)  in verify_non_standard_devpts_mount()
236 	int ret;  in verify_ptmx_bind_mount()  local
238 	ret = mount("/dev/pts/ptmx", "/dev/ptmx", NULL, MS_BIND, NULL);  in verify_ptmx_bind_mount()
239 	if (ret < 0) {  in verify_ptmx_bind_mount()
245 	ret = do_tiocgptpeer("/dev/ptmx", "/dev/pts/");  in verify_ptmx_bind_mount()
246 	if (ret < 0)  in verify_ptmx_bind_mount()
254 	int ret;  in verify_invalid_ptmx_bind_mount()  local
265 	ret = mount("/dev/pts/ptmx", ptmx, NULL, MS_BIND, NULL);  in verify_invalid_ptmx_bind_mount()
267 	if (ret < 0) {  in verify_invalid_ptmx_bind_mount()
273 	ret = do_tiocgptpeer(ptmx, "/dev/pts/");  in verify_invalid_ptmx_bind_mount()
274 	if (ret == 0)  in verify_invalid_ptmx_bind_mount()
282 	int ret;  in main()  local
290 	ret = unshare(CLONE_NEWNS);  in main()
291 	if (ret < 0) {  in main()
296 	ret = mount("", "/", NULL, MS_PRIVATE | MS_REC, 0);  in main()
297 	if (ret < 0) {  in main()
303 	ret = verify_ptmx_bind_mount();  in main()
304 	if (ret < 0)  in main()
307 	ret = verify_invalid_ptmx_bind_mount();  in main()
308 	if (ret < 0)  in main()
311 	ret = verify_non_standard_devpts_mount();  in main()
312 	if (ret < 0)  in main()