[Bug libc/12503] New: fmemopen disobeys POSIX regarding 'b' flag

[Bug libc/12503] New: fmemopen disobeys POSIX regarding 'b' flag

[eblake at redhat dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=12503

           Summary: fmemopen disobeys POSIX regarding 'b' flag
           Product: glibc
           Version: 2.12
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper.fsp@gmail.com
        ReportedBy: eblake@redhat.com


POSIX requires that the 'b' flag of fmemopen have no effect.  But the
resolution to bug 6544 commandeered the 'b' flag to make fmemopen disobey
POSIX.  Please use a different flag than 'b', or get POSIX changed to leave the
behavior of fmemopen and 'b' unspecified.

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[Bug libc/12503] fmemopen disobeys POSIX regarding 'b' flag

[drepper.fsp at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=12503

Ulrich Drepper <drepper.fsp at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WONTFIX

--- Comment #1 from Ulrich Drepper <drepper.fsp at gmail dot com> 2011-03-05 09:33:11 UTC ---
No, this is existing practice on which the standard was based.

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[Bug libc/12503] fmemopen disobeys POSIX regarding 'b' flag

[eblake at redhat dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=12503

Eric Blake <eblake at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|WONTFIX                     |

--- Comment #2 from Eric Blake <eblake at redhat dot com> 2011-03-17 18:13:30 UTC ---
(In reply to comment #1)
> No, this is existing practice on which the standard was based.

Actually, the standard was based on the fmemopen() behavior that existed in
2006, when glibc ignored 'b'.  However, I've opened an Austin Group bug to see
who needs to change (glibc, POSIX, or both).
http://austingroupbugs.net/view.php?id=396

Based on the outcome of that POSIX bug, glibc may yet need to change its
implementation to comply, so I'm reopening this glibc bug.

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[Bug libc/12503] fmemopen disobeys POSIX regarding 'b' flag

[drepper.fsp at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=12503

Ulrich Drepper <drepper.fsp at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|                            |WONTFIX

--- Comment #3 from Ulrich Drepper <drepper.fsp at gmail dot com> 2011-03-18 10:08:22 UTC ---
Stop reopening the bug.  There will be no change.  The existing behavior is
common practice and the functionality is needed.

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[Bug libc/12503] fmemopen disobeys POSIX regarding 'b' flag

[mtk.manpages at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=12503

Michael Kerrisk <mtk.manpages at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mtk.manpages at gmail dot
                   |                            |com

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[Bug libc/12503] fmemopen disobeys POSIX regarding 'b' flag

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=12503

Florian Weimer <fweimer at redhat dot com> changed:

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

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