mirror of https://go.googlesource.com/go
59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build unix || js || wasip1 || windows
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package net
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import (
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"syscall"
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)
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// A sockaddr represents a TCP, UDP, IP or Unix network endpoint
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// address that can be converted into a syscall.Sockaddr.
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type sockaddr interface {
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Addr
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// family returns the platform-dependent address family
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// identifier.
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family() int
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// isWildcard reports whether the address is a wildcard
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// address.
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isWildcard() bool
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// sockaddr returns the address converted into a syscall
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// sockaddr type that implements syscall.Sockaddr
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// interface. It returns a nil interface when the address is
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// nil.
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sockaddr(family int) (syscall.Sockaddr, error)
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// toLocal maps the zero address to a local system address (127.0.0.1 or ::1)
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toLocal(net string) sockaddr
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}
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func (fd *netFD) addrFunc() func(syscall.Sockaddr) Addr {
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switch fd.family {
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case syscall.AF_INET, syscall.AF_INET6:
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switch fd.sotype {
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case syscall.SOCK_STREAM:
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return sockaddrToTCP
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case syscall.SOCK_DGRAM:
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return sockaddrToUDP
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case syscall.SOCK_RAW:
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return sockaddrToIP
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}
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case syscall.AF_UNIX:
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switch fd.sotype {
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case syscall.SOCK_STREAM:
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return sockaddrToUnix
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case syscall.SOCK_DGRAM:
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return sockaddrToUnixgram
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case syscall.SOCK_SEQPACKET:
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return sockaddrToUnixpacket
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}
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}
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return func(syscall.Sockaddr) Addr { return nil }
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}
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