[Bug network/33804] resolv: duplicate queries if search contains root '.'

[pemensik at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=33804

Petr Menšík <pemensik at redhat dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |pemensik at redhat dot com

--- Comment #1 from Petr Menšík <pemensik at redhat dot com> ---
I confirm the issue on CentOS 10 and it happens in default configuration in
Fedora rawhide too.

My reproduction steps:

# cat /etc/resolv.conf
nameserver 127.0.0.53
options edns0 trust-ad
search .

# tcpdump -i lo -vn port domain &

# getent -s dns hosts null.example.org

tcpdump will show double queries for both AAAA and A records.

# rpm -q glibc
glibc-2.42.9000-17.fc44.x86_64

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