misc/60604: Some tests fail without Internet connectivity

>Number:         60604
>Category:       misc
>Synopsis:       Some tests fail without Internet connectivity
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    misc-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Aug 16 16:25:00 +0000 2026
>Originator:     Andreas Gustafsson
>Release:        NetBSD-current
>Organization:
  
>Environment:
System: NetBSD
Architecture: x86_64
Machine: amd64
>Description:

The following test cases show false positives when run on a system
that lacks an Internet connection:

lib/libpthread/t_resolv:resolv
net/altq/t_cbq:altq_cbq_basic_ipv4
net/altq/t_cbq:altq_cbq_multi_ifaces_ipv4
net/altq/t_cbq:altq_cbq_options_ipv4

Here is example test output from a bare metal amd64 system not connected to the Internet:

https://www.gson.org/netbsd/bugs/build/amd64-baremetal/2026/2026.08.02.02.59.14/test.html

Here is the output from after connecting to the Internet for comparison:

https://www.gson.org/netbsd/bugs/build/amd64-baremetal/2026/2026.08.02.08.18.45/test.html

See also PR 49593.

>How-To-Repeat:

Run the ATF tests on a system not connected to the Internet.

>Fix: