[Bug libc/15361] New: aio_fsync() should not check file descriptor for "open for writing" mode and return EBADF

[Bug libc/15361] New: aio_fsync() should not check file descriptor for "open for writing" mode and return EBADF

[roche+kml2 at exalead dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=15361

             Bug #: 15361
           Summary: aio_fsync() should not check file descriptor for "open
                    for writing" mode and return EBADF
           Product: glibc
           Version: 2.17
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: unassigned@sourceware.org
        ReportedBy: roche+kml2@exalead.com
                CC: drepper.fsp@gmail.com
    Classification: Unclassified


As suggested by Roland McGrath, I'm opening a request regarding the aio_fsync()
function returning EBADF when using a file descriptor not "open for writing".

This is actually a minor inconsistency fixed POSIX:
<http://austingroupbugs.net/view.php?id=671>

The suggested change is not to check anymore the file descriptor flags.

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[Bug libc/15361] aio_fsync() should not check file descriptor for "open for writing" mode and return EBADF

[roche+kml2 at exalead dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=15361

--- Comment #1 from Xavier Roche <roche+kml2 at exalead dot com> 2013-04-12 05:25:08 UTC ---
Created attachment 6977
  --> http://sourceware.org/bugzilla/attachment.cgi?id=6977
Suggested patch for sysdeps/pthread/aio_fsync.c

This is a suggested patch for the sysdeps/pthread/aio_fsync.c file. It just
replaces the O_RDONLY flag check by a F_GETFL fd check (to ensure the file
descriptor is valid) to accommodate the new specification.

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[Bug libc/15361] aio_fsync() should not check file descriptor for "open for writing" mode and return EBADF

[roche+kml2 at exalead dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=15361

Xavier Roche <roche+kml2 at exalead dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |http://austingroupbugs.net/
                   |                            |view.php?id=671

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[Bug libc/15361] aio_fsync() should not check file descriptor for "open for writing" mode and return EBADF

[roche+kml2 at exalead dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=15361

--- Comment #2 from Xavier Roche <roche+kml2 at exalead dot com> 2013-04-12 05:39:10 UTC ---
Created attachment 6978
  --> http://sourceware.org/bugzilla/attachment.cgi?id=6978
Suggested patch for manual/llio.texi

Suggested patch for the manual.

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[Bug libc/15361] aio_fsync() should not check file descriptor for "open for writing" mode and return EBADF

[roche+kml2 at exalead dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=15361

--- Comment #3 from Xavier Roche <roche+kml2 at exalead dot com> 2013-04-12 05:58:03 UTC ---
Please see also:

* the related discussion on austin-group-l
http://comments.gmane.org/gmane.comp.standards.posix.austin.general/6952

* the libc-alpha@sourceware.org discussion:
http://sourceware.org/ml/libc-alpha/2013-04/msg00213.html

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[Bug libc/15361] aio_fsync() should not check file descriptor for "open for writing" mode and return EBADF

[roland at gnu dot org]

http://sourceware.org/bugzilla/show_bug.cgi?id=15361

Roland McGrath <roland at gnu dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |roland at gnu dot org
         Resolution|                            |FIXED

--- Comment #4 from Roland McGrath <roland at gnu dot org> 2013-04-12 20:11:54 UTC ---
Fixed on trunk.

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[Bug libc/15361] aio_fsync() should not check file descriptor for "open for writing" mode and return EBADF

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=15361

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |security-

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