sock_cloexec.go

     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 for platforms that provide a fast path for
     6  // setting SetNonblock and CloseOnExec.
     7  
     8  //go:build dragonfly || freebsd || linux || netbsd || openbsd
     9  
    10  package net
    11  
    12  import (
    13  	"os"
    14  	"syscall"
    15  )
    16  
    17  // Wrapper around the socket system call that marks the returned file
    18  // descriptor as nonblocking and close-on-exec.
    19  func sysSocket(family, sotype, proto int) (int, error) {
    20  	s, err := socketFunc(family, sotype|syscall.SOCK_NONBLOCK|syscall.SOCK_CLOEXEC, proto)
    21  	if err != nil {
    22  		return -1, os.NewSyscallError("socket", err)
    23  	}
    24  	return s, nil
    25  }
    26
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