sock_cloexec.mx raw

   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