proxyutil

func AppendIPAddrs(ipAddrs *[]net.IPAddr, answers []dns.RR)

AppendIPAddrs appends the IP addresses got from dns.RR to the specified array

Deprecated: This function is deprecated and will be removed in a future release.

func ContainsIP(nets []*net.IPNet, ip net.IP) (ok bool)

ContainsIP returns true if any of nets contains ip.

Deprecated: This function is deprecated and will be removed in a future release.

func DNSSize(isUDP bool, r *dns.Msg) int

DNSSize returns if buffer size *advertised* in the requests OPT record. Or when the request was over TCP, we return the maximum allowed size of 64K.

Deprecated: This function is deprecated and will be removed in a future release.

func ReadPrefixed(conn net.Conn) ([]byte, error)

ReadPrefixed reads a DNS message with a 2-byte prefix containing message length from conn.

Deprecated: This function is deprecated and will be removed in a future release.

func SortIPAddrs(ipAddrs []net.IPAddr) []net.IPAddr

SortIPAddrs sorts the specified IP addresses array IPv4 addresses go first, then IPv6 addresses

Deprecated: This function is deprecated. Packages in module dnsproxy should use internal/netutil.SortIPAddrs instead.

func UDPGetOOBSize() (oobSize int)

UDPGetOOBSize returns maximum size of the received OOB data.

Deprecated: This function is deprecated. Packages in module dnsproxy should use internal/netutil.UDPGetOOBSize instead.

func UDPRead(
	c *net.UDPConn,
	buf []byte,
	udpOOBSize int,
) (n int, localIP net.IP, remoteAddr *net.UDPAddr, err error)

UDPRead udpRead reads the message from c using buf receives payload of size udpOOBSize from the UDP socket. It returns the number of bytes copied into buf, the number of bytes copied with OOB and the source address of the message.

Deprecated: This function is deprecated. Packages in module dnsproxy should use internal/netutil.UDPRead instead.

func UDPSetOptions(c *net.UDPConn) (err error)

UDPSetOptions sets flag options on a UDP socket to be able to receive the necessary OOB data.

Deprecated: This function is deprecated. Packages in module dnsproxy should use internal/netutil.UDPSetOptions instead.

func UDPWrite(
	data []byte,
	conn *net.UDPConn,
	remoteAddr *net.UDPAddr,
	localIP net.IP,
) (n int, err error)

UDPWrite writes the data to the remoteAddr using conn.

Deprecated: This function is deprecated. Packages in module dnsproxy should use internal/netutil.UDPWrite instead.

func WritePrefixed(b []byte, conn net.Conn) error

WritePrefixed writes a DNS message to a TCP connection it first writes a 2-byte prefix followed by the message itself.

Deprecated: This function is deprecated and will be removed in a future release.