Philip Withnall 55a75590d0 gsubprocesslauncher: Don’t close target FDs in close() method
This is a regression introduced in commit 67a589e505. Previously, the
source/target FD pairs were stored in `needdup_fd_assignments`, in
consecutive entries, so source FDs had even indices and target FDs had
odd indices.

I didn’t notice that the array index was being incremented by 2 when
closing FDs, when porting from the old code. So previously the code was
only closing the source FDs; after the port, it was closing source and
target FDs.

That’s incorrect, as the target FDs are just integers in the parent
process. It’s only in the child process where they are actually FDs —
and `g_subprocess_launcher_close()` is never called in the child
process.

This resulted in some strange misbehaviours in any process which used
`g_subprocess_launcher_take_fd()` with target FDs which could have
possibly aliased with other FDs in the parent process (and which weren’t
equal to their mapped source FDs).

Thanks to Olivier Fourdan for the detailed bug report.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>

Fixes: #2332
2021-02-19 18:27:00 +00:00
2021-02-18 19:19:03 +00:00
2019-11-21 14:03:01 -06:00
2019-01-15 15:11:43 +00:00
2017-05-29 19:53:35 +02:00
2021-01-20 16:05:36 +01:00
2021-02-16 16:24:25 +00:00
2021-02-16 16:24:25 +00:00
2001-04-03 19:22:44 +00:00
2018-07-16 15:36:20 -04:00

GLib

GLib is the low-level core library that forms the basis for projects such as GTK and GNOME. It provides data structure handling for C, portability wrappers, and interfaces for such runtime functionality as an event loop, threads, dynamic loading, and an object system.

The official download locations are: https://download.gnome.org/sources/glib

The official web site is: https://www.gtk.org/

Installation

See the file 'INSTALL.in'

How to report bugs

Bugs should be reported to the GNOME issue tracking system. (https://gitlab.gnome.org/GNOME/glib/issues/new). You will need to create an account for yourself.

In the bug report please include:

  • Information about your system. For instance:
    • What operating system and version
    • For Linux, what version of the C library
    • And anything else you think is relevant.
  • How to reproduce the bug.
    • If you can reproduce it with one of the test programs that are built in the tests/ subdirectory, that will be most convenient. Otherwise, please include a short test program that exhibits the behavior. As a last resort, you can also provide a pointer to a larger piece of software that can be downloaded.
  • If the bug was a crash, the exact text that was printed out when the crash occurred.
  • Further information such as stack traces may be useful, but is not necessary.

Patches

Patches should also be submitted as merge requests to gitlab.gnome.org. If the patch fixes an existing issue, please refer to the issue in your commit message with the following notation (for issue 123): Closes: #123

Otherwise, create a new merge request that introduces the change, filing a separate issue is not required.

Description
Low-level core library that forms the basis for projects such as GTK+ and GNOME.
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