[Bug stdio/29917] New: getdelim/getline() fail to set ferror on some errors, violate POSIX

[Bug stdio/29917] New: getdelim/getline() fail to set ferror on some errors, violate POSIX

[roman.zilka at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=29917

            Bug ID: 29917
           Summary: getdelim/getline() fail to set ferror on some errors,
                    violate POSIX
           Product: glibc
           Version: 2.36
            Status: UNCONFIRMED
          Keywords: std-posix
          Severity: normal
          Priority: P2
         Component: stdio
          Assignee: unassigned at sourceware dot org
          Reporter: roman.zilka at gmail dot com
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu
            Target: x86_64-pc-linux-gnu
             Build: x86_64-pc-linux-gnu

POSIX-2017 requires that getdelim/getline() set the stream error indicator upon
error. For some of them glibc won't do that: EINVAL, possibly also ENOMEM and
EOVERFLOW (judging by the sourcecode). The usage example given in POSIX is
unsupported and the hint about feof() and ferror() in Application Usage doesn't
hold.

This is on x86_64 on my distro's 2.36 with libio/ioget{line,delim}.c identical
to those in git.

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[Bug stdio/29917] getdelim/getline() fail to set ferror on some errors, violate POSIX

[roman.zilka at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=29917

Roman Žilka <roman.zilka at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |https://austingroupbugs.net
                   |                            |/view.php?id=1624

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[Bug stdio/29917] getdelim/getline() fail to set ferror on some errors, violate POSIX

[jscott at posteo dot net]

https://sourceware.org/bugzilla/show_bug.cgi?id=29917

John Scott <jscott at posteo dot net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jscott at posteo dot net

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[Bug stdio/29917] getdelim/getline() fail to set ferror on some errors, violate POSIX

[carlos at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=29917

Carlos O'Donell <carlos at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |2.37
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED
                 CC|                            |carlos at redhat dot com

--- Comment #1 from Carlos O'Donell <carlos at redhat dot com> ---
Fixed by this commit:

commit a09183aed7bb8ace211e042b2e6e982bcc004957
Author: Andreas Schwab <schwab@suse.de>
Date:   Mon Dec 19 12:40:45 2022 +0100

    getdelim: ensure error indicator is set on error (bug 29917)

    POSIX requires that getdelim and getline set the error indicator on the
    stream when an error occured, in addition to setting errno.

This is fixed in glibc 2.37.

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