233 	DEBUG(LOG_ERR, "setsockopt(IPV6_RECVPKTINFO/IPV6_2292PKTINFO): %s\n",  in set_recvpktinfo()
236 	DEBUG(LOG_ERR, "setsockopt(IPV6_RECVPKTINFO): %s\n",  in set_recvpktinfo()
246 	DEBUG(LOG_ERR, "setsockopt(IPV6_PKTINFO): %s\n",  in set_recvpktinfo()
263 		DEBUG(LOG_ERR, "setsockopt(IPV6_CHECKSUM): %s\n",  in init_sock()
274 		DEBUG(LOG_ERR, "setsockopt(ICMP6_FILTER): %s\n",  in init_sock()
295 	DEBUG(LOG_DEBUG, "%s()\n", __func__);  in ni_recv()
340 	DEBUG(LOG_DEBUG, "%s()\n", __func__);  in ni_send()
384 		DEBUG(LOG_DEBUG, "sendmsg(): %s\n", strerror(errno));  in ni_send()
396 		DEBUG(LOG_INFO, "singnal(%d) received, quitting.\n", sig);  in sig_handler()
434 		DEBUG(LOG_ERR, "failed to unlink file '%s' : %s\n",  in cleanup_pidfile()
465 					DEBUG(LOG_ERR, "pid file '%s' exists, but read failed.\n",  in do_daemonize()
468 					DEBUG(LOG_ERR, "pid file '%s' exists : %d\n",  in do_daemonize()
478 			DEBUG(LOG_ERR, "failed to open file '%s': %s\n",  in do_daemonize()
485 		DEBUG(LOG_ERR, "failed to daemon(): %s\n", strerror(errno));  in do_daemonize()
513 		DEBUG(LOG_ERR, "cap_init: %s\n", strerror(errno));  in limit_capabilities()
519 		DEBUG(LOG_ERR, "cap_get_proc: %s\n", strerror(errno));  in limit_capabilities()
535 		DEBUG(LOG_ERR, "cap_set_proc: %s\n", strerror(errno));  in limit_capabilities()
541 		DEBUG(LOG_ERR, "prctl: %s\n", strerror(errno));  in limit_capabilities()
559 		DEBUG(LOG_ERR, "cap_init: %s\n", strerror(errno));  in drop_capabilities()
569 			DEBUG(LOG_ERR, "cap_set_proc: %s\n", strerror(errno));  in drop_capabilities()
575 		DEBUG(LOG_ERR, "setuid: %s\n", strerror(errno));  in drop_capabilities()
580 		DEBUG(LOG_ERR, "prctl: %s\n", strerror(errno));  in drop_capabilities()
586 		DEBUG(LOG_ERR, "cap_set_proc: %s\n", strerror(errno));  in drop_capabilities()
593 		DEBUG(LOG_ERR, "setuid: %s\n", strerror(errno));  in drop_capabilities()
623 					DEBUG(LOG_ERR, "No such user: %s", optarg);  in parse_args()
688 		DEBUG(LOG_ERR, "socket: %s\n", strerror(sock_errno));  in main()
715 			DEBUG(LOG_WARNING, "%s(): failed to allocate packet context; sleep 1 sec.\n",  in main()
749 			DEBUG(LOG_WARNING, "Too short icmp message from %s\n", saddrbuf);  in main()
755 		DEBUG(LOG_DEBUG,  in main()
761 			DEBUG(LOG_WARNING,  in main()