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The SOCK_CLOEXEC and SOCK_NONBLOCK flags to the socket syscall and the accept4 syscall are supported since OpenBSD 5.7. Follows CL 40895 and CL 94295 Change-Id: Icaf35ace2ef5e73279a70d4f1a9fbf3be9371e6c Reviewed-on: https://go-review.googlesource.com/97196 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
36 lines
978 B
Go
36 lines
978 B
Go
// Copyright 2013 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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// This file implements sysSocket and accept for platforms that do not
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// provide a fast path for setting SetNonblock and CloseOnExec.
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// +build darwin nacl solaris
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package net
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import (
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"internal/poll"
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"os"
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"syscall"
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)
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// Wrapper around the socket system call that marks the returned file
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// descriptor as nonblocking and close-on-exec.
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func sysSocket(family, sotype, proto int) (int, 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 := socketFunc(family, sotype, proto)
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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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if err != nil {
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return -1, os.NewSyscallError("socket", err)
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}
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if err = syscall.SetNonblock(s, true); err != nil {
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poll.CloseFunc(s)
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return -1, os.NewSyscallError("setnonblock", err)
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}
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return s, nil
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}
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