1// Copyright 2013 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5// This file implements sysSocket and accept for platforms that do not
6// provide a fast path for setting SetNonblock and CloseOnExec.
7
8// +build aix darwin solaris
9
10package net
11
12import (
13	"internal/poll"
14	"os"
15	"syscall"
16)
17
18// Wrapper around the socket system call that marks the returned file
19// descriptor as nonblocking and close-on-exec.
20func sysSocket(family, sotype, proto int) (int, error) {
21	// See ../syscall/exec_unix.go for description of ForkLock.
22	syscall.ForkLock.RLock()
23	s, err := socketFunc(family, sotype, proto)
24	if err == nil {
25		syscall.CloseOnExec(s)
26	}
27	syscall.ForkLock.RUnlock()
28	if err != nil {
29		return -1, os.NewSyscallError("socket", err)
30	}
31	if err = syscall.SetNonblock(s, true); err != nil {
32		poll.CloseFunc(s)
33		return -1, os.NewSyscallError("setnonblock", err)
34	}
35	return s, nil
36}
37