Source file src/syscall/sock_cloexec_linux.go

Documentation: syscall

     1  // Copyright 2019 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  package syscall
     6  
     7  // This is a stripped down version of sysSocket from net/sock_cloexec.go.
     8  func cloexecSocket(family, sotype, proto int) (int, error) {
     9  	s, err := Socket(family, sotype|SOCK_CLOEXEC, proto)
    10  	switch err {
    11  	case nil:
    12  		return s, nil
    13  	default:
    14  		return -1, err
    15  	case EINVAL:
    16  	}
    17  
    18  	ForkLock.RLock()
    19  	s, err = Socket(family, sotype, proto)
    20  	if err == nil {
    21  		CloseOnExec(s)
    22  	}
    23  	ForkLock.RUnlock()
    24  	if err != nil {
    25  		Close(s)
    26  		return -1, err
    27  	}
    28  	return s, nil
    29  }
    30  

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