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writeFile creates OS inaccessible file #33829

Description

@gnonio
  • Version: v12.16.2
  • Platform: Windows 8.1 64-bit
  • Subsystem:

What steps will reproduce the bug?

`var fs = require('fs')

fs.writeFileSync( "AUX.txt", "test", function(err){return console.log(err)} )

console.log( fs.readFileSync( "AUX.txt", {encoding: 'utf-8'}) )`

How often does it reproduce? Is there a required condition?

Always given the provided path "AUX.txt", independently of extension given (tested: "txt" / "js" / null), using another name does not fail.

What is the expected behavior?

A file normally accessible via the OS

What do you see instead?

  • Opening the file with a generic text application fails (notepad++ and notepad)
    notepad++:
    "\\.\AUX" cannot be opened
    "\\." doesn't exist
    notepad:
    Cannot find the \\.\AUX.txt file
  • OS fails to delete or rename file

Additional information

  • creating the file using an absolute path results in same behaviour
  • fs.writeFile async method fails in the same way
  • node does access file contents in the basic test provided

Activity

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