51   struct cmsghdr *cmsg = (struct cmsghdr *)&controlbuf;  in main()  local
52   assert(cmsg);  in main()
59   cmsg->cmsg_level = SOL_SOCKET;  in main()
60   cmsg->cmsg_type = SCM_RIGHTS;  in main()
61   cmsg->cmsg_len = CMSG_LEN(kNumFds * sizeof(int));  in main()
62   memcpy(CMSG_DATA(cmsg), myfds, kNumFds * sizeof(int));  in main()
64   __msan_poison(&cmsg->cmsg_level, sizeof(cmsg->cmsg_level));  in main()
67   __msan_poison(&cmsg->cmsg_type, sizeof(cmsg->cmsg_type));  in main()
70   __msan_poison(&cmsg->cmsg_len, sizeof(cmsg->cmsg_len));  in main()
73   cmsg = (struct cmsghdr *)(&controlbuf[CMSG_SPACE(kNumFds * sizeof(int))]);  in main()
74   assert(cmsg);  in main()
79   cmsg->cmsg_level = SOL_SOCKET;  in main()
80   cmsg->cmsg_type = SCM_CREDENTIALS;  in main()
81   cmsg->cmsg_len = CMSG_LEN(sizeof(struct ucred));  in main()
82   memcpy(CMSG_DATA(cmsg), &cred, sizeof(struct ucred));  in main()
84   __msan_poison(&cmsg->cmsg_level, sizeof(cmsg->cmsg_level));  in main()
87   __msan_poison(&cmsg->cmsg_type, sizeof(cmsg->cmsg_type));  in main()
90   __msan_poison(&cmsg->cmsg_len, sizeof(cmsg->cmsg_len));  in main()