48 	int s, k, pid = fork();  in TEST()  local
59 	k = ptrace(PTRACE_ATTACH, pid, 0L, 0L);  in TEST()
61 	ASSERT_EQ(k, -1);  in TEST()
62 	k = waitpid(-1, &s, WNOHANG);  in TEST()
63 	ASSERT_NE(k, -1);  in TEST()
64 	ASSERT_NE(k, 0);  in TEST()
65 	ASSERT_NE(k, pid);  in TEST()
69 	k = ptrace(PTRACE_ATTACH, pid, 0L, 0L);  in TEST()
70 	ASSERT_EQ(k, 0);  in TEST()
71 	k = waitpid(-1, &s, 0);  in TEST()
72 	ASSERT_EQ(k, pid);  in TEST()
75 	k = ptrace(PTRACE_DETACH, pid, 0L, 0L);  in TEST()
76 	ASSERT_EQ(k, 0);  in TEST()
77 	k = waitpid(-1, &s, 0);  in TEST()
78 	ASSERT_EQ(k, pid);  in TEST()
81 	k = waitpid(-1, NULL, 0);  in TEST()
82 	ASSERT_EQ(k, -1);  in TEST()