net

package standard library

Go to main page

Versions in this module

go1

go1.18.10

Jan 10, 2023 GO-2026-4971GO-2026-4981

GO-2026-4971: Panic in Dial and LookupPort when handling NUL byte on Windows in net

GO-2026-4981: Crash when handling long CNAME response in net

Changes in this version

+ const IPv4len

+ const IPv6len

+ var DefaultResolver = &Resolver

+ var ErrClosed error = errClosed

+ var ErrWriteToConnected = errors.New("use of WriteTo with pre-connected connection")

+ var IPv4allrouter = IPv4(224, 0, 0, 2)

+ var IPv4allsys = IPv4(224, 0, 0, 1)

+ var IPv4bcast = IPv4(255, 255, 255, 255)

+ var IPv4zero = IPv4(0, 0, 0, 0)

+ var IPv6interfacelocalallnodes = IP

+ var IPv6linklocalallnodes = IP

+ var IPv6linklocalallrouters = IP

+ var IPv6loopback = IP

+ var IPv6unspecified = IP

+ var IPv6zero = IP

+ func JoinHostPort(host, port string) string

+ func LookupAddr(addr string) (names []string, err error)

+ func LookupCNAME(host string) (cname string, err error)

+ func LookupHost(host string) (addrs []string, err error)

+ func LookupPort(network, service string) (port int, err error)

+ func LookupTXT(name string) ([]string, error)

+ func ParseCIDR(s string) (IP, *IPNet, error)

+ func Pipe() (Conn, Conn)

+ func SplitHostPort(hostport string) (host, port string, err error)

+ type Addr interface

+ Network func() string

+ String func() string

+ func InterfaceAddrs() ([]Addr, error)

+ type AddrError struct

+ Addr string

+ Err string

+ func (e *AddrError) Error() string

+ func (e *AddrError) Temporary() bool

+ func (e *AddrError) Timeout() bool

+ type Buffers [][]byte

+ func (v *Buffers) Read(p []byte) (n int, err error)

+ func (v *Buffers) WriteTo(w io.Writer) (n int64, err error)

+ type Conn interface

+ Close func() error

+ LocalAddr func() Addr

+ Read func(b []byte) (n int, err error)

+ RemoteAddr func() Addr

+ SetDeadline func(t time.Time) error

+ SetReadDeadline func(t time.Time) error

+ SetWriteDeadline func(t time.Time) error

+ Write func(b []byte) (n int, err error)

+ func Dial(network, address string) (Conn, error)

+ func DialTimeout(network, address string, timeout time.Duration) (Conn, error)

+ func FileConn(f *os.File) (c Conn, err error)

+ type DNSConfigError struct

+ Err error

+ func (e *DNSConfigError) Error() string

+ func (e *DNSConfigError) Temporary() bool

+ func (e *DNSConfigError) Timeout() bool

+ func (e *DNSConfigError) Unwrap() error

+ type DNSError struct

+ Err string

+ IsNotFound bool

+ IsTemporary bool

+ IsTimeout bool

+ Name string

+ Server string

+ func (e *DNSError) Error() string

+ func (e *DNSError) Temporary() bool

+ func (e *DNSError) Timeout() bool

+ type Dialer struct

+ Cancel <-chan struct{}

+ Control func(network, address string, c syscall.RawConn) error

+ Deadline time.Time

+ DualStack bool

+ FallbackDelay time.Duration

+ KeepAlive time.Duration

+ LocalAddr Addr

+ Resolver *Resolver

+ Timeout time.Duration

+ func (d *Dialer) Dial(network, address string) (Conn, error)

+ func (d *Dialer) DialContext(ctx context.Context, network, address string) (Conn, error)

+ type Error interface

+ Temporary func() bool

+ Timeout func() bool

+ type Flags uint

+ const FlagBroadcast

+ const FlagLoopback

+ const FlagMulticast

+ const FlagPointToPoint

+ const FlagUp

+ func (f Flags) String() string

+ type HardwareAddr []byte

+ func ParseMAC(s string) (hw HardwareAddr, err error)

+ func (a HardwareAddr) String() string

+ type IP []byte

+ func IPv4(a, b, c, d byte) IP

+ func LookupIP(host string) ([]IP, error)

+ func ParseIP(s string) IP

+ func (ip *IP) UnmarshalText(text []byte) error

+ func (ip IP) DefaultMask() IPMask

+ func (ip IP) Equal(x IP) bool

+ func (ip IP) IsGlobalUnicast() bool

+ func (ip IP) IsInterfaceLocalMulticast() bool

+ func (ip IP) IsLinkLocalMulticast() bool

+ func (ip IP) IsLinkLocalUnicast() bool

+ func (ip IP) IsLoopback() bool

+ func (ip IP) IsMulticast() bool

+ func (ip IP) IsPrivate() bool

+ func (ip IP) IsUnspecified() bool

+ func (ip IP) MarshalText() ([]byte, error)

+ func (ip IP) Mask(mask IPMask) IP

+ func (ip IP) String() string

+ func (ip IP) To16() IP

+ func (ip IP) To4() IP

+ type IPAddr struct

+ IP IP

+ Zone string

+ func ResolveIPAddr(network, address string) (*IPAddr, error)

+ func (a *IPAddr) Network() string

+ func (a *IPAddr) String() string

+ type IPConn struct

+ func DialIP(network string, laddr, raddr *IPAddr) (*IPConn, error)

+ func ListenIP(network string, laddr *IPAddr) (*IPConn, error)

+ func (c *IPConn) Close() error

+ func (c *IPConn) File() (f *os.File, err error)

+ func (c *IPConn) LocalAddr() Addr

+ func (c *IPConn) Read(b []byte) (int, error)

+ func (c *IPConn) ReadFrom(b []byte) (int, Addr, error)

+ func (c *IPConn) ReadFromIP(b []byte) (int, *IPAddr, error)

+ func (c *IPConn) ReadMsgIP(b, oob []byte) (n, oobn, flags int, addr *IPAddr, err error)

+ func (c *IPConn) RemoteAddr() Addr

+ func (c *IPConn) SetDeadline(t time.Time) error

+ func (c *IPConn) SetReadBuffer(bytes int) error

+ func (c *IPConn) SetReadDeadline(t time.Time) error

+ func (c *IPConn) SetWriteBuffer(bytes int) error

+ func (c *IPConn) SetWriteDeadline(t time.Time) error

+ func (c *IPConn) SyscallConn() (syscall.RawConn, error)

+ func (c *IPConn) Write(b []byte) (int, error)

+ func (c *IPConn) WriteMsgIP(b, oob []byte, addr *IPAddr) (n, oobn int, err error)

+ func (c *IPConn) WriteTo(b []byte, addr Addr) (int, error)

+ func (c *IPConn) WriteToIP(b []byte, addr *IPAddr) (int, error)

+ type IPMask []byte

+ func CIDRMask(ones, bits int) IPMask

+ func IPv4Mask(a, b, c, d byte) IPMask

+ func (m IPMask) Size() (ones, bits int)

+ func (m IPMask) String() string

+ type IPNet struct

+ IP IP

+ Mask IPMask

+ func (n *IPNet) Contains(ip IP) bool

+ func (n *IPNet) Network() string

+ func (n *IPNet) String() string

+ type Interface struct

+ Flags Flags

+ HardwareAddr HardwareAddr

+ Index int

+ MTU int

+ Name string

+ func InterfaceByIndex(index int) (*Interface, error)

+ func InterfaceByName(name string) (*Interface, error)

+ func Interfaces() ([]Interface, error)

+ func (ifi *Interface) Addrs() ([]Addr, error)

+ func (ifi *Interface) MulticastAddrs() ([]Addr, error)

+ type InvalidAddrError string

+ func (e InvalidAddrError) Error() string

+ func (e InvalidAddrError) Temporary() bool

+ func (e InvalidAddrError) Timeout() bool

+ type ListenConfig struct

+ Control func(network, address string, c syscall.RawConn) error

+ KeepAlive time.Duration

+ func (lc *ListenConfig) Listen(ctx context.Context, network, address string) (Listener, error)

+ func (lc *ListenConfig) ListenPacket(ctx context.Context, network, address string) (PacketConn, error)

+ type Listener interface

+ Accept func() (Conn, error)

+ Addr func() Addr

+ Close func() error

+ func FileListener(f *os.File) (ln Listener, err error)

+ func Listen(network, address string) (Listener, error)

+ type MX struct

+ Host string

+ Pref uint16

+ func LookupMX(name string) ([]*MX, error)

+ type NS struct

+ Host string

+ func LookupNS(name string) ([]*NS, error)

+ type OpError struct

+ Addr Addr

+ Err error

+ Net string

+ Op string

+ Source Addr

+ func (e *OpError) Error() string

+ func (e *OpError) Temporary() bool

+ func (e *OpError) Timeout() bool

+ func (e *OpError) Unwrap() error

+ type PacketConn interface

+ Close func() error

+ LocalAddr func() Addr

+ ReadFrom func(p []byte) (n int, addr Addr, err error)

+ SetDeadline func(t time.Time) error

+ SetReadDeadline func(t time.Time) error

+ SetWriteDeadline func(t time.Time) error

+ WriteTo func(p []byte, addr Addr) (n int, err error)

+ func FilePacketConn(f *os.File) (c PacketConn, err error)

+ func ListenPacket(network, address string) (PacketConn, error)

+ type ParseError struct

+ Text string

+ Type string

+ func (e *ParseError) Error() string

+ func (e *ParseError) Temporary() bool

+ func (e *ParseError) Timeout() bool

+ type Resolver struct

+ Dial func(ctx context.Context, network, address string) (Conn, error)

+ PreferGo bool

+ StrictErrors bool

+ func (r *Resolver) LookupAddr(ctx context.Context, addr string) ([]string, error)

+ func (r *Resolver) LookupCNAME(ctx context.Context, host string) (string, error)

+ func (r *Resolver) LookupHost(ctx context.Context, host string) (addrs []string, err error)

+ func (r *Resolver) LookupIP(ctx context.Context, network, host string) ([]IP, error)

+ func (r *Resolver) LookupIPAddr(ctx context.Context, host string) ([]IPAddr, error)

+ func (r *Resolver) LookupMX(ctx context.Context, name string) ([]*MX, error)

+ func (r *Resolver) LookupNS(ctx context.Context, name string) ([]*NS, error)

+ func (r *Resolver) LookupNetIP(ctx context.Context, network, host string) ([]netip.Addr, error)

+ func (r *Resolver) LookupPort(ctx context.Context, network, service string) (port int, err error)

+ func (r *Resolver) LookupSRV(ctx context.Context, service, proto, name string) (string, []*SRV, error)

+ func (r *Resolver) LookupTXT(ctx context.Context, name string) ([]string, error)

+ type SRV struct

+ Port uint16

+ Priority uint16

+ Target string

+ Weight uint16

+ func LookupSRV(service, proto, name string) (cname string, addrs []*SRV, err error)

+ type TCPAddr struct

+ IP IP

+ Port int

+ Zone string

+ func ResolveTCPAddr(network, address string) (*TCPAddr, error)

+ func TCPAddrFromAddrPort(addr netip.AddrPort) *TCPAddr

+ func (a *TCPAddr) AddrPort() netip.AddrPort

+ func (a *TCPAddr) Network() string

+ func (a *TCPAddr) String() string

+ type TCPConn struct

+ func DialTCP(network string, laddr, raddr *TCPAddr) (*TCPConn, error)

+ func (c *TCPConn) Close() error

+ func (c *TCPConn) CloseRead() error

+ func (c *TCPConn) CloseWrite() error

+ func (c *TCPConn) File() (f *os.File, err error)

+ func (c *TCPConn) LocalAddr() Addr

+ func (c *TCPConn) Read(b []byte) (int, error)

+ func (c *TCPConn) ReadFrom(r io.Reader) (int64, error)

+ func (c *TCPConn) RemoteAddr() Addr

+ func (c *TCPConn) SetDeadline(t time.Time) error

+ func (c *TCPConn) SetKeepAlive(keepalive bool) error

+ func (c *TCPConn) SetKeepAlivePeriod(d time.Duration) error

+ func (c *TCPConn) SetLinger(sec int) error

+ func (c *TCPConn) SetNoDelay(noDelay bool) error

+ func (c *TCPConn) SetReadBuffer(bytes int) error

+ func (c *TCPConn) SetReadDeadline(t time.Time) error

+ func (c *TCPConn) SetWriteBuffer(bytes int) error

+ func (c *TCPConn) SetWriteDeadline(t time.Time) error

+ func (c *TCPConn) SyscallConn() (syscall.RawConn, error)

+ func (c *TCPConn) Write(b []byte) (int, error)

+ type TCPListener struct

+ func ListenTCP(network string, laddr *TCPAddr) (*TCPListener, error)

+ func (l *TCPListener) Accept() (Conn, error)

+ func (l *TCPListener) AcceptTCP() (*TCPConn, error)

+ func (l *TCPListener) Addr() Addr

+ func (l *TCPListener) Close() error

+ func (l *TCPListener) File() (f *os.File, err error)

+ func (l *TCPListener) SetDeadline(t time.Time) error

+ func (l *TCPListener) SyscallConn() (syscall.RawConn, error)

+ type UDPAddr struct

+ IP IP

+ Port int

+ Zone string

+ func ResolveUDPAddr(network, address string) (*UDPAddr, error)

+ func UDPAddrFromAddrPort(addr netip.AddrPort) *UDPAddr

+ func (a *UDPAddr) AddrPort() netip.AddrPort

+ func (a *UDPAddr) Network() string

+ func (a *UDPAddr) String() string

+ type UDPConn struct

+ func DialUDP(network string, laddr, raddr *UDPAddr) (*UDPConn, error)

+ func ListenMulticastUDP(network string, ifi *Interface, gaddr *UDPAddr) (*UDPConn, error)

+ func ListenUDP(network string, laddr *UDPAddr) (*UDPConn, error)

+ func (c *UDPConn) Close() error

+ func (c *UDPConn) File() (f *os.File, err error)

+ func (c *UDPConn) LocalAddr() Addr

+ func (c *UDPConn) Read(b []byte) (int, error)

+ func (c *UDPConn) ReadFrom(b []byte) (int, Addr, error)

+ func (c *UDPConn) ReadFromUDP(b []byte) (n int, addr *UDPAddr, err error)

+ func (c *UDPConn) ReadFromUDPAddrPort(b []byte) (n int, addr netip.AddrPort, err error)

+ func (c *UDPConn) ReadMsgUDP(b, oob []byte) (n, oobn, flags int, addr *UDPAddr, err error)

+ func (c *UDPConn) ReadMsgUDPAddrPort(b, oob []byte) (n, oobn, flags int, addr netip.AddrPort, err error)

+ func (c *UDPConn) RemoteAddr() Addr

+ func (c *UDPConn) SetDeadline(t time.Time) error

+ func (c *UDPConn) SetReadBuffer(bytes int) error

+ func (c *UDPConn) SetReadDeadline(t time.Time) error

+ func (c *UDPConn) SetWriteBuffer(bytes int) error

+ func (c *UDPConn) SetWriteDeadline(t time.Time) error

+ func (c *UDPConn) SyscallConn() (syscall.RawConn, error)

+ func (c *UDPConn) Write(b []byte) (int, error)

+ func (c *UDPConn) WriteMsgUDP(b, oob []byte, addr *UDPAddr) (n, oobn int, err error)

+ func (c *UDPConn) WriteMsgUDPAddrPort(b, oob []byte, addr netip.AddrPort) (n, oobn int, err error)

+ func (c *UDPConn) WriteTo(b []byte, addr Addr) (int, error)

+ func (c *UDPConn) WriteToUDP(b []byte, addr *UDPAddr) (int, error)

+ func (c *UDPConn) WriteToUDPAddrPort(b []byte, addr netip.AddrPort) (int, error)

+ type UnixAddr struct

+ Name string

+ Net string

+ func ResolveUnixAddr(network, address string) (*UnixAddr, error)

+ func (a *UnixAddr) Network() string

+ func (a *UnixAddr) String() string

+ type UnixConn struct

+ func DialUnix(network string, laddr, raddr *UnixAddr) (*UnixConn, error)

+ func ListenUnixgram(network string, laddr *UnixAddr) (*UnixConn, error)

+ func (c *UnixConn) Close() error

+ func (c *UnixConn) CloseRead() error

+ func (c *UnixConn) CloseWrite() error

+ func (c *UnixConn) File() (f *os.File, err error)

+ func (c *UnixConn) LocalAddr() Addr

+ func (c *UnixConn) Read(b []byte) (int, error)

+ func (c *UnixConn) ReadFrom(b []byte) (int, Addr, error)

+ func (c *UnixConn) ReadFromUnix(b []byte) (int, *UnixAddr, error)

+ func (c *UnixConn) ReadMsgUnix(b, oob []byte) (n, oobn, flags int, addr *UnixAddr, err error)

+ func (c *UnixConn) RemoteAddr() Addr

+ func (c *UnixConn) SetDeadline(t time.Time) error

+ func (c *UnixConn) SetReadBuffer(bytes int) error

+ func (c *UnixConn) SetReadDeadline(t time.Time) error

+ func (c *UnixConn) SetWriteBuffer(bytes int) error

+ func (c *UnixConn) SetWriteDeadline(t time.Time) error

+ func (c *UnixConn) SyscallConn() (syscall.RawConn, error)

+ func (c *UnixConn) Write(b []byte) (int, error)

+ func (c *UnixConn) WriteMsgUnix(b, oob []byte, addr *UnixAddr) (n, oobn int, err error)

+ func (c *UnixConn) WriteTo(b []byte, addr Addr) (int, error)

+ func (c *UnixConn) WriteToUnix(b []byte, addr *UnixAddr) (int, error)

+ type UnixListener struct

+ func ListenUnix(network string, laddr *UnixAddr) (*UnixListener, error)

+ func (l *UnixListener) Accept() (Conn, error)

+ func (l *UnixListener) AcceptUnix() (*UnixConn, error)

+ func (l *UnixListener) Addr() Addr

+ func (l *UnixListener) Close() error

+ func (l *UnixListener) File() (f *os.File, err error)

+ func (l *UnixListener) SetDeadline(t time.Time) error

+ func (l *UnixListener) SetUnlinkOnClose(unlink bool)

+ func (l *UnixListener) SyscallConn() (syscall.RawConn, error)

+ type UnknownNetworkError string

+ func (e UnknownNetworkError) Error() string

+ func (e UnknownNetworkError) Temporary() bool

+ func (e UnknownNetworkError) Timeout() bool

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL