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