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  1. Qt
  2. QTBUG-35432

Windows: Leading backslash stripped from command line arguments starting with \\ (network share paths)

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Details

    • Bug
    • Resolution: Done
    • P0: Blocker
    • 5.2.0
    • 5.2.0 RC1
    • Core: Other
    • None
    • Windows 8.1
    • 7cfe7c198224babeb06eac583e419bbd82c7217e (release branch , 6.12.2013)

    Description

      Using the attached example, pass a network share path as arguments:

      d:\dev\projects\cmdargs_5>release\cmdargs.exe \\server\path
5.2.1
0 release\cmdargs.exe
1 \\server\path
("release\cmdargs.exe", "\server\path")

      whereas in Qt 4:

      d:\dev\projects\cmdargs_4>release\cmdargs.exe \\server\path
4.8.6
0 release\cmdargs.exe
1 \\server\path
("release\cmdargs.exe", "\\server\path")

      "
      " is changed to "\" in the debug output of QCoreApplication::arguments(). It seems to perform some backslash-escaping which it clearly shouldn't. Quoting in double-quotes does not help (note it is possible for example to start

      explorer \\server\path

      , so, the Windows shell clearly does not do backslash-escaping). This is pretty serious as you cannot pass cmd line arguments of that type to any application.

      Attachments

        1. qtbug35432.zip
          7 kB
          Friedemann Kleint

        Issue Links

          is required for

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-35145 Issues to be fixed before Qt5.2 final release

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-23687 Invalid command line parsing at QCoreApplication::arguments on MS Windows family

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          resulted from

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-30628 Application arguments with single quotes are parsed wrong

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          For Gerrit Dashboard: QTBUG-35432
          # Subject Branch Project Status CR V
          74113,4 Windows: Use WinAPI CommandLineToArgvW() to create argv from command line. stable qt/qtbase Status: ABANDONED -1 0
          84345,1 Windows: Use WinAPI CommandLineToArgvW() to create argv from command line. dev qt/qtbase Status: MERGED +2 0

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              kleint Friedemann Kleint
              kleint Friedemann Kleint
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              Dates

                Created:
                Updated:
                Resolved:

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