On Wed, Sep 14, 2022 at 6:08 PM Vit Mojzis <vmojzis@xxxxxxxxxx> wrote:
>
> Fixes:
> # semanage fcontext -f f -m -t passwd_file_t /etc/security/opasswd
> libsemanage.dbase_llist_query: could not query record value (No such file or directory).
>
> Signed-off-by: Vit Mojzis <vmojzis@xxxxxxxxxx>
> ---
> python/semanage/seobject.py | 19 ++++++++++++++++++-
> 1 file changed, 18 insertions(+), 1 deletion(-)
>
> diff --git a/python/semanage/seobject.py b/python/semanage/seobject.py
> index 0782c082..2d52f53c 100644
> --- a/python/semanage/seobject.py
> +++ b/python/semanage/seobject.py
> @@ -177,6 +177,22 @@ except (OSError, ImportError):
> for l in self.log_list:
> syslog.syslog(syslog.LOG_INFO, message + l)
>
> +# Define a context manager to suppress stderr.
> +class suppress_stderr(object):
> + def __init__(self):
> + # Open a /dev/null file to be used as stderr
> + self.null = os.open(os.devnull,os.O_RDWR)
> + self.save_fd = os.dup(2)
> +
> + def __enter__(self):
> + # Set stderr to the null file
> + os.dup2(self.null,2)
> +
> + def __exit__(self, *_):
> + # Restore stderr
> + os.dup2(self.save_fd,2)
> + os.close(self.null)
> +
>
> class nulllogger:
>
> @@ -2510,7 +2526,8 @@ class fcontextRecords(semanageRecords):
> raise ValueError(_("File context for %s is not defined") % target)
>
> try:
> - (rc, fcontext) = semanage_fcontext_query_local(self.sh, k)
> + with suppress_stderr():
> + (rc, fcontext) = semanage_fcontext_query_local(self.sh, k)
> except OSError:
> try:
> (rc, fcontext) = semanage_fcontext_query(self.sh, k)
> --
> 2.35.3
>
I think it is better to rework semanage/seobject.py so that there is
no error. I sent a patch to the list that should fix this.
Thanks for the report. Sorry that it took so long to get to.
Jim
