OXIESEC PANEL

Name	Size	Modified	Perms
📁 ..	-	02/02/2024 06:09:55 PM	rwxr-xr-x
📄 addrselect.go	9.69 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 addrselect_test.go	8.5 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_aix.go	582 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_android.go	272 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_bsd.go	343 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_darwin.go	298 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_linux.go	642 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_netbsd.go	276 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_openbsd.go	276 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_resnew.go	580 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_resold.go	579 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_socknew.go	753 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_sockold.go	842 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_solaris.go	343 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_stub.go	1.33 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_unix.go	11.35 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_unix_cgo.go	2.24 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_unix_cgo_darwin.go	461 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_unix_cgo_res.go	911 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_unix_cgo_resn.go	998 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_unix_syscall.go	2.99 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 cgo_unix_test.go	1.44 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 conf.go	15.63 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 conf_test.go	12.28 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 conn_test.go	1.82 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 dial.go	25.68 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 dial_test.go	30.14 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 dial_unix_test.go	2.77 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 dnsclient.go	5.65 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 dnsclient_test.go	1.51 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 dnsclient_unix.go	24.26 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 dnsclient_unix_test.go	69.13 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 dnsconfig.go	1.73 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 dnsconfig_unix.go	4.16 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 dnsconfig_unix_test.go	7.07 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 dnsconfig_windows.go	1.6 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 dnsname_test.go	1.96 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 error_plan9.go	224 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 error_plan9_test.go	437 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 error_posix.go	543 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 error_posix_test.go	981 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 error_test.go	20.32 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 error_unix.go	382 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 error_unix_test.go	723 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 error_windows.go	355 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 error_windows_test.go	757 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 example_test.go	8.45 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 external_test.go	4.05 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 fd_fake.go	3.79 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 fd_js.go	627 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 fd_plan9.go	3.56 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 fd_posix.go	4.29 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 fd_unix.go	5.43 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 fd_wasip1.go	496 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 fd_windows.go	6.14 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 file.go	1.69 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 file_plan9.go	2.72 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 file_stub.go	481 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 file_test.go	6.43 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 file_unix.go	2.5 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 file_unix_test.go	2.07 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 file_wasip1.go	2.2 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 file_wasip1_test.go	3.76 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 file_windows.go	521 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 hook.go	894 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 hook_plan9.go	211 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 hook_unix.go	658 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 hook_windows.go	720 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 hosts.go	3.48 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 hosts_test.go	5.6 KB	02/02/2024 06:09:55 PM	rw-r--r--
📁 http	-	02/02/2024 06:09:55 PM	rwxr-xr-x
📄 interface.go	7.26 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 interface_aix.go	4.46 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 interface_bsd.go	2.82 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 interface_bsd_test.go	1.44 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 interface_bsdvar.go	718 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 interface_darwin.go	1.29 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 interface_freebsd.go	1.29 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 interface_linux.go	6.96 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 interface_linux_test.go	3.65 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 interface_plan9.go	4.71 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 interface_solaris.go	2.13 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 interface_stub.go	814 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 interface_test.go	9.76 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 interface_unix_test.go	4.85 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 interface_windows.go	5.43 KB	02/02/2024 06:09:55 PM	rw-r--r--
📁 internal	-	02/02/2024 06:09:55 PM	rwxr-xr-x
📄 ip.go	13.88 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 ip_test.go	25.6 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 iprawsock.go	7.11 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 iprawsock_plan9.go	874 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 iprawsock_posix.go	3.89 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 iprawsock_test.go	5.98 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 ipsock.go	9.05 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 ipsock_plan9.go	7.48 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 ipsock_plan9_test.go	645 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 ipsock_posix.go	7.86 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 ipsock_test.go	6.81 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 listen_test.go	20.5 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 lookup.go	29.04 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 lookup_plan9.go	9.94 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 lookup_test.go	40.62 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 lookup_unix.go	3.35 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 lookup_windows.go	13.8 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 lookup_windows_test.go	8.93 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 mac.go	1.88 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 mac_test.go	3.26 KB	02/02/2024 06:09:55 PM	rw-r--r--
📁 mail	-	02/02/2024 06:09:55 PM	rwxr-xr-x
📄 main_cloexec_test.go	693 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 main_conf_test.go	1.39 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 main_noconf_test.go	467 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 main_plan9_test.go	392 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 main_posix_test.go	1.37 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 main_test.go	7.53 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 main_unix_test.go	1.19 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 main_wasm_test.go	284 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 main_windows_test.go	1 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 mockserver_test.go	10.77 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 mptcpsock_linux.go	3.96 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 mptcpsock_linux_test.go	4.06 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 mptcpsock_stub.go	542 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 net.go	24.56 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 net_fake.go	26.36 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 net_fake_test.go	2.79 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 net_test.go	14 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 net_windows_test.go	16.28 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 netcgo_off.go	222 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 netcgo_on.go	220 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 netgo_netcgo.go	453 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 netgo_off.go	220 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 netgo_on.go	218 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📁 netip	-	02/02/2024 06:09:55 PM	rwxr-xr-x
📄 nss.go	5.48 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 nss_test.go	3.4 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 packetconn_test.go	3.02 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 parse.go	6.04 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 parse_test.go	1.55 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 pipe.go	5.43 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 pipe_test.go	1.2 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 platform_test.go	4.33 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 port.go	1.46 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 port_test.go	1.34 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 port_unix.go	1.24 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 protoconn_test.go	7.44 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 rawconn.go	2.7 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 rawconn_stub_test.go	631 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 rawconn_test.go	4.33 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 rawconn_unix_test.go	2.96 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 rawconn_windows_test.go	3.12 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 resolverdialfunc_test.go	8.25 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 rlimit_js.go	346 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 rlimit_unix.go	1.1 KB	02/02/2024 06:09:55 PM	rw-r--r--
📁 rpc	-	02/02/2024 06:09:55 PM	rwxr-xr-x
📄 sendfile_linux.go	1.12 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 sendfile_linux_test.go	1.93 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 sendfile_stub.go	344 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 sendfile_test.go	8.25 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 sendfile_unix_alt.go	2.04 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 sendfile_windows.go	1.02 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 server_test.go	11.67 KB	02/02/2024 06:09:55 PM	rw-r--r--
📁 smtp	-	02/02/2024 06:09:55 PM	rwxr-xr-x
📄 sock_bsd.go	918 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 sock_cloexec.go	1.38 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 sock_linux.go	993 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 sock_linux_test.go	575 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 sock_plan9.go	262 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 sock_posix.go	6.29 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 sock_stub.go	390 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 sock_windows.go	802 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 sockaddr_posix.go	1.45 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 sockopt_aix.go	1.43 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 sockopt_bsd.go	2.21 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 sockopt_fake.go	955 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 sockopt_linux.go	1.25 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 sockopt_plan9.go	406 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 sockopt_posix.go	2.13 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 sockopt_solaris.go	1.25 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 sockopt_windows.go	1.51 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 sockoptip_bsdvar.go	867 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 sockoptip_linux.go	735 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 sockoptip_posix.go	1.38 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 sockoptip_stub.go	769 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 sockoptip_windows.go	786 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 splice_linux.go	1.69 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 splice_stub.go	376 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 splice_test.go	13.48 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 sys_cloexec.go	962 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 tcpsock.go	11.75 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 tcpsock_plan9.go	2.18 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 tcpsock_posix.go	6.16 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 tcpsock_test.go	17.68 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 tcpsock_unix_test.go	2.34 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 tcpsockopt_darwin.go	770 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 tcpsockopt_dragonfly.go	698 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 tcpsockopt_openbsd.go	365 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 tcpsockopt_plan9.go	525 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 tcpsockopt_posix.go	442 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 tcpsockopt_solaris.go	1.15 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 tcpsockopt_stub.go	399 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 tcpsockopt_unix.go	722 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 tcpsockopt_windows.go	741 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📁 testdata	-	02/02/2024 06:09:55 PM	rwxr-xr-x
📁 textproto	-	02/02/2024 06:09:55 PM	rwxr-xr-x
📄 timeout_test.go	29.11 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 udpsock.go	11.83 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 udpsock_plan9.go	4.64 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 udpsock_plan9_test.go	1.31 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 udpsock_posix.go	7.53 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 udpsock_test.go	17.24 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 unixsock.go	10.12 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 unixsock_linux_test.go	2.29 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 unixsock_plan9.go	1.24 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 unixsock_posix.go	6.64 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 unixsock_readmsg_cloexec.go	654 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 unixsock_readmsg_cmsg_cloexec.go	332 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 unixsock_readmsg_other.go	275 bytes	02/02/2024 06:09:55 PM	rw-r--r--
📄 unixsock_readmsg_test.go	2.51 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 unixsock_test.go	10.64 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 unixsock_windows_test.go	2.03 KB	02/02/2024 06:09:55 PM	rw-r--r--
📁 url	-	02/02/2024 06:09:55 PM	rwxr-xr-x
📄 write_unix_test.go	1.61 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 writev_test.go	5.03 KB	02/02/2024 06:09:55 PM	rw-r--r--
📄 writev_unix.go	666 bytes	02/02/2024 06:09:55 PM	rw-r--r--

Editing: udpsock_test.go

// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package net

import (
	"errors"
	"fmt"
	"internal/testenv"
	"net/netip"
	"os"
	"reflect"
	"runtime"
	"testing"
	"time"
)

func BenchmarkUDP6LinkLocalUnicast(b *testing.B) {
	testHookUninstaller.Do(uninstallTestHooks)

if !supportsIPv6() {
		b.Skip("IPv6 is not supported")
	}
	ifi := loopbackInterface()
	if ifi == nil {
		b.Skip("loopback interface not found")
	}
	lla := ipv6LinkLocalUnicastAddr(ifi)
	if lla == "" {
		b.Skip("IPv6 link-local unicast address not found")
	}

c1, err := ListenPacket("udp6", JoinHostPort(lla+"%"+ifi.Name, "0"))
	if err != nil {
		b.Fatal(err)
	}
	defer c1.Close()
	c2, err := ListenPacket("udp6", JoinHostPort(lla+"%"+ifi.Name, "0"))
	if err != nil {
		b.Fatal(err)
	}
	defer c2.Close()

var buf [1]byte
	for i := 0; i < b.N; i++ {
		if _, err := c1.WriteTo(buf[:], c2.LocalAddr()); err != nil {
			b.Fatal(err)
		}
		if _, _, err := c2.ReadFrom(buf[:]); err != nil {
			b.Fatal(err)
		}
	}
}

type resolveUDPAddrTest struct {
	network       string
	litAddrOrName string
	addr          *UDPAddr
	err           error
}

var resolveUDPAddrTests = []resolveUDPAddrTest{
	{"udp", "127.0.0.1:0", &UDPAddr{IP: IPv4(127, 0, 0, 1), Port: 0}, nil},
	{"udp4", "127.0.0.1:65535", &UDPAddr{IP: IPv4(127, 0, 0, 1), Port: 65535}, nil},

{"udp", "[::1]:0", &UDPAddr{IP: ParseIP("::1"), Port: 0}, nil},
	{"udp6", "[::1]:65535", &UDPAddr{IP: ParseIP("::1"), Port: 65535}, nil},

{"udp", "[::1%en0]:1", &UDPAddr{IP: ParseIP("::1"), Port: 1, Zone: "en0"}, nil},
	{"udp6", "[::1%911]:2", &UDPAddr{IP: ParseIP("::1"), Port: 2, Zone: "911"}, nil},

{"", "127.0.0.1:0", &UDPAddr{IP: IPv4(127, 0, 0, 1), Port: 0}, nil}, // Go 1.0 behavior
	{"", "[::1]:0", &UDPAddr{IP: ParseIP("::1"), Port: 0}, nil},         // Go 1.0 behavior

{"udp", ":12345", &UDPAddr{Port: 12345}, nil},

{"http", "127.0.0.1:0", nil, UnknownNetworkError("http")},

{"udp", "127.0.0.1:domain", &UDPAddr{IP: ParseIP("127.0.0.1"), Port: 53}, nil},
	{"udp", "[::ffff:127.0.0.1]:domain", &UDPAddr{IP: ParseIP("::ffff:127.0.0.1"), Port: 53}, nil},
	{"udp", "[2001:db8::1]:domain", &UDPAddr{IP: ParseIP("2001:db8::1"), Port: 53}, nil},
	{"udp4", "127.0.0.1:domain", &UDPAddr{IP: ParseIP("127.0.0.1"), Port: 53}, nil},
	{"udp4", "[::ffff:127.0.0.1]:domain", &UDPAddr{IP: ParseIP("127.0.0.1"), Port: 53}, nil},
	{"udp6", "[2001:db8::1]:domain", &UDPAddr{IP: ParseIP("2001:db8::1"), Port: 53}, nil},

{"udp4", "[2001:db8::1]:domain", nil, &AddrError{Err: errNoSuitableAddress.Error(), Addr: "2001:db8::1"}},
	{"udp6", "127.0.0.1:domain", nil, &AddrError{Err: errNoSuitableAddress.Error(), Addr: "127.0.0.1"}},
	{"udp6", "[::ffff:127.0.0.1]:domain", nil, &AddrError{Err: errNoSuitableAddress.Error(), Addr: "::ffff:127.0.0.1"}},
}

func TestResolveUDPAddr(t *testing.T) {
	origTestHookLookupIP := testHookLookupIP
	defer func() { testHookLookupIP = origTestHookLookupIP }()
	testHookLookupIP = lookupLocalhost

for _, tt := range resolveUDPAddrTests {
		addr, err := ResolveUDPAddr(tt.network, tt.litAddrOrName)
		if !reflect.DeepEqual(addr, tt.addr) || !reflect.DeepEqual(err, tt.err) {
			t.Errorf("ResolveUDPAddr(%q, %q) = %#v, %v, want %#v, %v", tt.network, tt.litAddrOrName, addr, err, tt.addr, tt.err)
			continue
		}
		if err == nil {
			addr2, err := ResolveUDPAddr(addr.Network(), addr.String())
			if !reflect.DeepEqual(addr2, tt.addr) || err != tt.err {
				t.Errorf("(%q, %q): ResolveUDPAddr(%q, %q) = %#v, %v, want %#v, %v", tt.network, tt.litAddrOrName, addr.Network(), addr.String(), addr2, err, tt.addr, tt.err)
			}
		}
	}
}

func TestWriteToUDP(t *testing.T) {
	switch runtime.GOOS {
	case "plan9":
		t.Skipf("not supported on %s", runtime.GOOS)
	}

if !testableNetwork("udp") {
		t.Skipf("skipping: udp not supported")
	}

c, err := ListenPacket("udp", "127.0.0.1:0")
	if err != nil {
		t.Fatal(err)
	}
	defer c.Close()

testWriteToConn(t, c.LocalAddr().String())
	testWriteToPacketConn(t, c.LocalAddr().String())
}

func testWriteToConn(t *testing.T, raddr string) {
	c, err := Dial("udp", raddr)
	if err != nil {
		t.Fatal(err)
	}
	defer c.Close()

ra, err := ResolveUDPAddr("udp", raddr)
	if err != nil {
		t.Fatal(err)
	}

b := []byte("CONNECTED-MODE SOCKET")
	_, err = c.(*UDPConn).WriteToUDP(b, ra)
	if err == nil {
		t.Fatal("should fail")
	}
	if err != nil && err.(*OpError).Err != ErrWriteToConnected {
		t.Fatalf("should fail as ErrWriteToConnected: %v", err)
	}
	_, err = c.(*UDPConn).WriteTo(b, ra)
	if err == nil {
		t.Fatal("should fail")
	}
	if err != nil && err.(*OpError).Err != ErrWriteToConnected {
		t.Fatalf("should fail as ErrWriteToConnected: %v", err)
	}
	_, err = c.Write(b)
	if err != nil {
		t.Fatal(err)
	}
	_, _, err = c.(*UDPConn).WriteMsgUDP(b, nil, ra)
	if err == nil {
		t.Fatal("should fail")
	}
	if err != nil && err.(*OpError).Err != ErrWriteToConnected {
		t.Fatalf("should fail as ErrWriteToConnected: %v", err)
	}
	_, _, err = c.(*UDPConn).WriteMsgUDP(b, nil, nil)
	if err != nil {
		t.Fatal(err)
	}
}

func testWriteToPacketConn(t *testing.T, raddr string) {
	c, err := ListenPacket("udp", "127.0.0.1:0")
	if err != nil {
		t.Fatal(err)
	}
	defer c.Close()

ra, err := ResolveUDPAddr("udp", raddr)
	if err != nil {
		t.Fatal(err)
	}

b := []byte("UNCONNECTED-MODE SOCKET")
	_, err = c.(*UDPConn).WriteToUDP(b, ra)
	if err != nil {
		t.Fatal(err)
	}
	_, err = c.WriteTo(b, ra)
	if err != nil {
		t.Fatal(err)
	}
	_, err = c.(*UDPConn).Write(b)
	if err == nil {
		t.Fatal("should fail")
	}
	_, _, err = c.(*UDPConn).WriteMsgUDP(b, nil, nil)
	if err == nil {
		t.Fatal("should fail")
	}
	if err != nil && err.(*OpError).Err != errMissingAddress {
		t.Fatalf("should fail as errMissingAddress: %v", err)
	}
	_, _, err = c.(*UDPConn).WriteMsgUDP(b, nil, ra)
	if err != nil {
		t.Fatal(err)
	}
}

var udpConnLocalNameTests = []struct {
	net   string
	laddr *UDPAddr
}{
	{"udp4", &UDPAddr{IP: IPv4(127, 0, 0, 1)}},
	{"udp4", &UDPAddr{}},
	{"udp4", nil},
}

func TestUDPConnLocalName(t *testing.T) {
	testenv.MustHaveExternalNetwork(t)

for _, tt := range udpConnLocalNameTests {
		t.Run(fmt.Sprint(tt.laddr), func(t *testing.T) {
			if !testableNetwork(tt.net) {
				t.Skipf("skipping: %s not available", tt.net)
			}

c, err := ListenUDP(tt.net, tt.laddr)
			if err != nil {
				t.Fatal(err)
			}
			defer c.Close()
			la := c.LocalAddr()
			if a, ok := la.(*UDPAddr); !ok || a.Port == 0 {
				t.Fatalf("got %v; expected a proper address with non-zero port number", la)
			}
		})
	}
}

func TestUDPConnLocalAndRemoteNames(t *testing.T) {
	if !testableNetwork("udp") {
		t.Skipf("skipping: udp not available")
	}

for _, laddr := range []string{"", "127.0.0.1:0"} {
		c1, err := ListenPacket("udp", "127.0.0.1:0")
		if err != nil {
			t.Fatal(err)
		}
		defer c1.Close()

var la *UDPAddr
		if laddr != "" {
			var err error
			if la, err = ResolveUDPAddr("udp", laddr); err != nil {
				t.Fatal(err)
			}
		}
		c2, err := DialUDP("udp", la, c1.LocalAddr().(*UDPAddr))
		if err != nil {
			t.Fatal(err)
		}
		defer c2.Close()

var connAddrs = [4]struct {
			got Addr
			ok  bool
		}{
			{c1.LocalAddr(), true},
			{c1.(*UDPConn).RemoteAddr(), false},
			{c2.LocalAddr(), true},
			{c2.RemoteAddr(), true},
		}
		for _, ca := range connAddrs {
			if a, ok := ca.got.(*UDPAddr); ok != ca.ok || ok && a.Port == 0 {
				t.Fatalf("got %v; expected a proper address with non-zero port number", ca.got)
			}
		}
	}
}

func TestIPv6LinkLocalUnicastUDP(t *testing.T) {
	testenv.MustHaveExternalNetwork(t)

if !supportsIPv6() {
		t.Skip("IPv6 is not supported")
	}

for i, tt := range ipv6LinkLocalUnicastUDPTests {
		c1, err := ListenPacket(tt.network, tt.address)
		if err != nil {
			// It might return "LookupHost returned no
			// suitable address" error on some platforms.
			t.Log(err)
			continue
		}
		ls := (&packetListener{PacketConn: c1}).newLocalServer()
		defer ls.teardown()
		ch := make(chan error, 1)
		handler := func(ls *localPacketServer, c PacketConn) { packetTransponder(c, ch) }
		if err := ls.buildup(handler); err != nil {
			t.Fatal(err)
		}
		if la, ok := c1.LocalAddr().(*UDPAddr); !ok || !tt.nameLookup && la.Zone == "" {
			t.Fatalf("got %v; expected a proper address with zone identifier", la)
		}

c2, err := Dial(tt.network, ls.PacketConn.LocalAddr().String())
		if err != nil {
			t.Fatal(err)
		}
		defer c2.Close()
		if la, ok := c2.LocalAddr().(*UDPAddr); !ok || !tt.nameLookup && la.Zone == "" {
			t.Fatalf("got %v; expected a proper address with zone identifier", la)
		}
		if ra, ok := c2.RemoteAddr().(*UDPAddr); !ok || !tt.nameLookup && ra.Zone == "" {
			t.Fatalf("got %v; expected a proper address with zone identifier", ra)
		}

if _, err := c2.Write([]byte("UDP OVER IPV6 LINKLOCAL TEST")); err != nil {
			t.Fatal(err)
		}
		b := make([]byte, 32)
		if _, err := c2.Read(b); err != nil {
			t.Fatal(err)
		}

for err := range ch {
			t.Errorf("#%d: %v", i, err)
		}
	}
}

func TestUDPZeroBytePayload(t *testing.T) {
	switch runtime.GOOS {
	case "plan9":
		t.Skipf("not supported on %s", runtime.GOOS)
	case "darwin", "ios":
		testenv.SkipFlaky(t, 29225)
	}
	if !testableNetwork("udp") {
		t.Skipf("skipping: udp not available")
	}

c := newLocalPacketListener(t, "udp")
	defer c.Close()

for _, genericRead := range []bool{false, true} {
		n, err := c.WriteTo(nil, c.LocalAddr())
		if err != nil {
			t.Fatal(err)
		}
		if n != 0 {
			t.Errorf("got %d; want 0", n)
		}
		c.SetReadDeadline(time.Now().Add(30 * time.Second))
		var b [1]byte
		var name string
		if genericRead {
			_, err = c.(Conn).Read(b[:])
			name = "Read"
		} else {
			_, _, err = c.ReadFrom(b[:])
			name = "ReadFrom"
		}
		if err != nil {
			t.Errorf("%s of zero byte packet failed: %v", name, err)
		}
	}
}

func TestUDPZeroByteBuffer(t *testing.T) {
	switch runtime.GOOS {
	case "plan9":
		t.Skipf("not supported on %s", runtime.GOOS)
	}
	if !testableNetwork("udp") {
		t.Skipf("skipping: udp not available")
	}

c := newLocalPacketListener(t, "udp")
	defer c.Close()

b := []byte("UDP ZERO BYTE BUFFER TEST")
	for _, genericRead := range []bool{false, true} {
		n, err := c.WriteTo(b, c.LocalAddr())
		if err != nil {
			t.Fatal(err)
		}
		if n != len(b) {
			t.Errorf("got %d; want %d", n, len(b))
		}
		c.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
		if genericRead {
			_, err = c.(Conn).Read(nil)
		} else {
			_, _, err = c.ReadFrom(nil)
		}
		switch err {
		case nil: // ReadFrom succeeds
		default: // Read may timeout, it depends on the platform
			if nerr, ok := err.(Error); (!ok || !nerr.Timeout()) && runtime.GOOS != "windows" { // Windows returns WSAEMSGSIZE
				t.Fatal(err)
			}
		}
	}
}

func TestUDPReadSizeError(t *testing.T) {
	switch runtime.GOOS {
	case "plan9":
		t.Skipf("not supported on %s", runtime.GOOS)
	}
	if !testableNetwork("udp") {
		t.Skipf("skipping: udp not available")
	}

c1 := newLocalPacketListener(t, "udp")
	defer c1.Close()

c2, err := Dial("udp", c1.LocalAddr().String())
	if err != nil {
		t.Fatal(err)
	}
	defer c2.Close()

b1 := []byte("READ SIZE ERROR TEST")
	for _, genericRead := range []bool{false, true} {
		n, err := c2.Write(b1)
		if err != nil {
			t.Fatal(err)
		}
		if n != len(b1) {
			t.Errorf("got %d; want %d", n, len(b1))
		}
		b2 := make([]byte, len(b1)-1)
		if genericRead {
			n, err = c1.(Conn).Read(b2)
		} else {
			n, _, err = c1.ReadFrom(b2)
		}
		if err != nil && runtime.GOOS != "windows" { // Windows returns WSAEMSGSIZE
			t.Fatal(err)
		}
		if n != len(b1)-1 {
			t.Fatalf("got %d; want %d", n, len(b1)-1)
		}
	}
}

// TestUDPReadTimeout verifies that ReadFromUDP with timeout returns an error
// without data or an address.
func TestUDPReadTimeout(t *testing.T) {
	if !testableNetwork("udp4") {
		t.Skipf("skipping: udp4 not available")
	}

la, err := ResolveUDPAddr("udp4", "127.0.0.1:0")
	if err != nil {
		t.Fatal(err)
	}
	c, err := ListenUDP("udp4", la)
	if err != nil {
		t.Fatal(err)
	}
	defer c.Close()

c.SetDeadline(time.Now())
	b := make([]byte, 1)
	n, addr, err := c.ReadFromUDP(b)
	if !errors.Is(err, os.ErrDeadlineExceeded) {
		t.Errorf("ReadFromUDP got err %v want os.ErrDeadlineExceeded", err)
	}
	if n != 0 {
		t.Errorf("ReadFromUDP got n %d want 0", n)
	}
	if addr != nil {
		t.Errorf("ReadFromUDP got addr %+#v want nil", addr)
	}
}

func TestAllocs(t *testing.T) {
	switch runtime.GOOS {
	case "plan9", "js", "wasip1":
		// These implementations have not been optimized.
		t.Skipf("skipping on %v", runtime.GOOS)
	}
	if !testableNetwork("udp4") {
		t.Skipf("skipping: udp4 not available")
	}

// Optimizations are required to remove the allocs.
	testenv.SkipIfOptimizationOff(t)

conn, err := ListenUDP("udp4", &UDPAddr{IP: IPv4(127, 0, 0, 1)})
	if err != nil {
		t.Fatal(err)
	}
	defer conn.Close()
	addr := conn.LocalAddr()
	addrPort := addr.(*UDPAddr).AddrPort()
	buf := make([]byte, 8)

allocs := testing.AllocsPerRun(1000, func() {
		_, _, err := conn.WriteMsgUDPAddrPort(buf, nil, addrPort)
		if err != nil {
			t.Fatal(err)
		}
		_, _, _, _, err = conn.ReadMsgUDPAddrPort(buf, nil)
		if err != nil {
			t.Fatal(err)
		}
	})
	if got := int(allocs); got != 0 {
		t.Errorf("WriteMsgUDPAddrPort/ReadMsgUDPAddrPort allocated %d objects", got)
	}

allocs = testing.AllocsPerRun(1000, func() {
		_, err := conn.WriteToUDPAddrPort(buf, addrPort)
		if err != nil {
			t.Fatal(err)
		}
		_, _, err = conn.ReadFromUDPAddrPort(buf)
		if err != nil {
			t.Fatal(err)
		}
	})
	if got := int(allocs); got != 0 {
		t.Errorf("WriteToUDPAddrPort/ReadFromUDPAddrPort allocated %d objects", got)
	}

allocs = testing.AllocsPerRun(1000, func() {
		_, err := conn.WriteTo(buf, addr)
		if err != nil {
			t.Fatal(err)
		}
		_, _, err = conn.ReadFromUDP(buf)
		if err != nil {
			t.Fatal(err)
		}
	})
	if got := int(allocs); got != 1 {
		t.Errorf("WriteTo/ReadFromUDP allocated %d objects", got)
	}
}

func BenchmarkReadWriteMsgUDPAddrPort(b *testing.B) {
	conn, err := ListenUDP("udp4", &UDPAddr{IP: IPv4(127, 0, 0, 1)})
	if err != nil {
		b.Fatal(err)
	}
	defer conn.Close()
	addr := conn.LocalAddr().(*UDPAddr).AddrPort()
	buf := make([]byte, 8)
	b.ResetTimer()
	b.ReportAllocs()
	for i := 0; i < b.N; i++ {
		_, _, err := conn.WriteMsgUDPAddrPort(buf, nil, addr)
		if err != nil {
			b.Fatal(err)
		}
		_, _, _, _, err = conn.ReadMsgUDPAddrPort(buf, nil)
		if err != nil {
			b.Fatal(err)
		}
	}
}

func BenchmarkWriteToReadFromUDP(b *testing.B) {
	conn, err := ListenUDP("udp4", &UDPAddr{IP: IPv4(127, 0, 0, 1)})
	if err != nil {
		b.Fatal(err)
	}
	defer conn.Close()
	addr := conn.LocalAddr()
	buf := make([]byte, 8)
	b.ResetTimer()
	b.ReportAllocs()
	for i := 0; i < b.N; i++ {
		_, err := conn.WriteTo(buf, addr)
		if err != nil {
			b.Fatal(err)
		}
		_, _, err = conn.ReadFromUDP(buf)
		if err != nil {
			b.Fatal(err)
		}
	}
}

func BenchmarkWriteToReadFromUDPAddrPort(b *testing.B) {
	conn, err := ListenUDP("udp4", &UDPAddr{IP: IPv4(127, 0, 0, 1)})
	if err != nil {
		b.Fatal(err)
	}
	defer conn.Close()
	addr := conn.LocalAddr().(*UDPAddr).AddrPort()
	buf := make([]byte, 8)
	b.ResetTimer()
	b.ReportAllocs()
	for i := 0; i < b.N; i++ {
		_, err := conn.WriteToUDPAddrPort(buf, addr)
		if err != nil {
			b.Fatal(err)
		}
		_, _, err = conn.ReadFromUDPAddrPort(buf)
		if err != nil {
			b.Fatal(err)
		}
	}
}

func TestUDPIPVersionReadMsg(t *testing.T) {
	switch runtime.GOOS {
	case "plan9":
		t.Skipf("skipping on %v", runtime.GOOS)
	}
	if !testableNetwork("udp4") {
		t.Skipf("skipping: udp4 not available")
	}

conn, err := ListenUDP("udp4", &UDPAddr{IP: IPv4(127, 0, 0, 1)})
	if err != nil {
		t.Fatal(err)
	}
	defer conn.Close()
	daddr := conn.LocalAddr().(*UDPAddr).AddrPort()
	buf := make([]byte, 8)
	_, err = conn.WriteToUDPAddrPort(buf, daddr)
	if err != nil {
		t.Fatal(err)
	}
	_, _, _, saddr, err := conn.ReadMsgUDPAddrPort(buf, nil)
	if err != nil {
		t.Fatal(err)
	}
	if !saddr.Addr().Is4() {
		t.Error("returned AddrPort is not IPv4")
	}
	_, err = conn.WriteToUDPAddrPort(buf, daddr)
	if err != nil {
		t.Fatal(err)
	}
	_, _, _, soldaddr, err := conn.ReadMsgUDP(buf, nil)
	if err != nil {
		t.Fatal(err)
	}
	if len(soldaddr.IP) != 4 {
		t.Error("returned UDPAddr is not IPv4")
	}
}

// TestIPv6WriteMsgUDPAddrPortTargetAddrIPVersion verifies that
// WriteMsgUDPAddrPort accepts IPv4, IPv4-mapped IPv6, and IPv6 target addresses
// on a UDPConn listening on "::".
func TestIPv6WriteMsgUDPAddrPortTargetAddrIPVersion(t *testing.T) {
	if !testableNetwork("udp4") {
		t.Skipf("skipping: udp4 not available")
	}
	if !testableNetwork("udp6") {
		t.Skipf("skipping: udp6 not available")
	}

switch runtime.GOOS {
	case "dragonfly", "openbsd":
		// DragonflyBSD's IPv6 sockets are always IPv6-only, according to the man page:
		// https://www.dragonflybsd.org/cgi/web-man?command=ip6 (search for IPV6_V6ONLY).
		// OpenBSD's IPv6 sockets are always IPv6-only, according to the man page:
		// https://man.openbsd.org/ip6#IPV6_V6ONLY
		t.Skipf("skipping on %v", runtime.GOOS)
	}

conn, err := ListenUDP("udp", nil)
	if err != nil {
		t.Fatal(err)
	}
	defer conn.Close()

daddr4 := netip.AddrPortFrom(netip.MustParseAddr("127.0.0.1"), 12345)
	daddr4in6 := netip.AddrPortFrom(netip.MustParseAddr("::ffff:127.0.0.1"), 12345)
	daddr6 := netip.AddrPortFrom(netip.MustParseAddr("::1"), 12345)
	buf := make([]byte, 8)

_, _, err = conn.WriteMsgUDPAddrPort(buf, nil, daddr4)
	if err != nil {
		t.Fatal(err)
	}

_, _, err = conn.WriteMsgUDPAddrPort(buf, nil, daddr4in6)
	if err != nil {
		t.Fatal(err)
	}

_, _, err = conn.WriteMsgUDPAddrPort(buf, nil, daddr6)
	if err != nil {
		t.Fatal(err)
	}
}