2434 int __copy_msghdr(struct msghdr *kmsg,  in __copy_msghdr()  argument
2440 	kmsg->msg_control_is_user = true;  in __copy_msghdr()
2441 	kmsg->msg_get_inq = 0;  in __copy_msghdr()
2442 	kmsg->msg_control_user = msg->msg_control;  in __copy_msghdr()
2443 	kmsg->msg_controllen = msg->msg_controllen;  in __copy_msghdr()
2444 	kmsg->msg_flags = msg->msg_flags;  in __copy_msghdr()
2446 	kmsg->msg_namelen = msg->msg_namelen;  in __copy_msghdr()
2448 		kmsg->msg_namelen = 0;  in __copy_msghdr()
2450 	if (kmsg->msg_namelen < 0)  in __copy_msghdr()
2453 	if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))  in __copy_msghdr()
2454 		kmsg->msg_namelen = sizeof(struct sockaddr_storage);  in __copy_msghdr()
2459 	if (msg->msg_name && kmsg->msg_namelen) {  in __copy_msghdr()
2462 						  kmsg->msg_namelen,  in __copy_msghdr()
2463 						  kmsg->msg_name);  in __copy_msghdr()
2468 		kmsg->msg_name = NULL;  in __copy_msghdr()
2469 		kmsg->msg_namelen = 0;  in __copy_msghdr()
2475 	kmsg->msg_iocb = NULL;  in __copy_msghdr()
2476 	kmsg->msg_ubuf = NULL;  in __copy_msghdr()
2480 static int copy_msghdr_from_user(struct msghdr *kmsg,  in copy_msghdr_from_user()  argument
2491 	err = __copy_msghdr(kmsg, &msg, save_addr);  in copy_msghdr_from_user()
2497 			    UIO_FASTIOV, iov, &kmsg->msg_iter);  in copy_msghdr_from_user()