55 lines
1.4 KiB
Go
55 lines
1.4 KiB
Go
// Copyright 2009 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
|
|
|
|
// TCPAddr represents the address of a TCP end point.
|
|
type TCPAddr struct {
|
|
IP IP
|
|
Port int
|
|
Zone string // IPv6 scoped addressing zone
|
|
}
|
|
|
|
// Network returns the address's network name, "tcp".
|
|
func (a *TCPAddr) Network() string { return "tcp" }
|
|
|
|
func (a *TCPAddr) String() string {
|
|
if a == nil {
|
|
return "<nil>"
|
|
}
|
|
ip := ipEmptyString(a.IP)
|
|
if a.Zone != "" {
|
|
return JoinHostPort(ip+"%"+a.Zone, itoa(a.Port))
|
|
}
|
|
return JoinHostPort(ip, itoa(a.Port))
|
|
}
|
|
|
|
func (a *TCPAddr) toAddr() Addr {
|
|
if a == nil {
|
|
return nil
|
|
}
|
|
return a
|
|
}
|
|
|
|
// ResolveTCPAddr parses addr as a TCP address of the form "host:port"
|
|
// or "[ipv6-host%zone]:port" and resolves a pair of domain name and
|
|
// port name on the network net, which must be "tcp", "tcp4" or
|
|
// "tcp6". A literal address or host name for IPv6 must be enclosed
|
|
// in square brackets, as in "[::1]:80", "[ipv6-host]:http" or
|
|
// "[ipv6-host%zone]:80".
|
|
func ResolveTCPAddr(net, addr string) (*TCPAddr, error) {
|
|
switch net {
|
|
case "tcp", "tcp4", "tcp6":
|
|
case "": // a hint wildcard for Go 1.0 undocumented behavior
|
|
net = "tcp"
|
|
default:
|
|
return nil, UnknownNetworkError(net)
|
|
}
|
|
a, err := resolveInternetAddr(net, addr, noDeadline)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return a.toAddr().(*TCPAddr), nil
|
|
}
|