52 lines
1.2 KiB
Go
52 lines
1.2 KiB
Go
// Copyright 2009 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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package net
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import "syscall"
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func maxListenerBacklog() int {
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// TODO: Implement this
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// NOTE: Never return a number bigger than 1<<16 - 1. See issue 5030.
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return syscall.SOMAXCONN
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}
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func listenerSockaddr(s syscall.Handle, f int, la syscall.Sockaddr, toAddr func(syscall.Sockaddr) Addr) (syscall.Sockaddr, error) {
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a := toAddr(la)
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if a == nil {
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return la, nil
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}
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switch a := a.(type) {
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case *TCPAddr, *UnixAddr:
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if err := setDefaultListenerSockopts(s); err != nil {
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return nil, err
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}
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case *UDPAddr:
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if a.IP.IsMulticast() {
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if err := setDefaultMulticastSockopts(s); err != nil {
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return nil, err
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}
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switch f {
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case syscall.AF_INET:
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a.IP = IPv4zero
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case syscall.AF_INET6:
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a.IP = IPv6unspecified
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}
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return a.sockaddr(f)
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}
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}
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return la, nil
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}
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func sysSocket(f, t, p int) (syscall.Handle, error) {
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// See ../syscall/exec_unix.go for description of ForkLock.
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syscall.ForkLock.RLock()
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s, err := syscall.Socket(f, t, p)
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if err == nil {
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syscall.CloseOnExec(s)
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}
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syscall.ForkLock.RUnlock()
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return s, err
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}
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