65 строки
1,3 КиБ
Go
65 строки
1,3 КиБ
Go
package net
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import (
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"internal/itoa"
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"net/netip"
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)
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// TCPAddr represents the address of a TCP end point.
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type TCPAddr struct {
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IP IP
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Port int
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Zone string // IPv6 scoped addressing zone
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}
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// AddrPort returns the TCPAddr a as a netip.AddrPort.
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//
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// If a.Port does not fit in a uint16, it's silently truncated.
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//
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// If a is nil, a zero value is returned.
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func (a *TCPAddr) AddrPort() netip.AddrPort {
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if a == nil {
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return netip.AddrPort{}
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}
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na, _ := netip.AddrFromSlice(a.IP)
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na = na.WithZone(a.Zone)
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return netip.AddrPortFrom(na, uint16(a.Port))
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}
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// Network returns the address's network name, "tcp".
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func (a *TCPAddr) Network() string { return "tcp" }
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func (a *TCPAddr) String() string {
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if a == nil {
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return "<nil>"
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}
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ip := ipEmptyString(a.IP)
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if a.Zone != "" {
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return JoinHostPort(ip+"%"+a.Zone, itoa.Itoa(a.Port))
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}
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return JoinHostPort(ip, itoa.Itoa(a.Port))
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}
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func (a *TCPAddr) isWildcard() bool {
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if a == nil || a.IP == nil {
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return true
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}
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return a.IP.IsUnspecified()
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}
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func (a *TCPAddr) opAddr() Addr {
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if a == nil {
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return nil
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}
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return a
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}
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// TCPConn is an implementation of the Conn interface for TCP network
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// connections.
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type TCPConn struct {
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conn
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}
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func (c *TCPConn) CloseWrite() error {
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return &OpError{"close", "", nil, nil, ErrNotImplemented}
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}
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