github.com/jlmucb/cloudproxy@v0.0.0-20170830161738-b5aa0b619bc4/go/util/fd.go (about)

     1  // Copyright (c) 2015, Kevin Walsh.  All rights reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package util
    16  
    17  // This provides a convenience functions for dealing with file descriptors.
    18  
    19  import (
    20  	"fmt"
    21  	"os"
    22  )
    23  
    24  // NewFile wraps a file descriptor inside an os.File, also giving it a
    25  // reasonable name.
    26  func NewFile(fd int) *os.File {
    27  	name := fmt.Sprintf("/dev/fd/%d", fd)
    28  	return os.NewFile(uintptr(fd), name)
    29  }