[Bug 220610] Expose _PATH_RESCONF as __res_conf_name for improved determinism of lib/libc/resolv

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=220610

--- Comment #3 from [email protected] ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=702c24ccc0c208e9bc697e775abe47ff723e3012

commit 702c24ccc0c208e9bc697e775abe47ff723e3012
Author:     Dag-Erling Smørgrav <[email protected]>
AuthorDate: 2026-06-28 09:37:40 +0000
Commit:     Dag-Erling Smørgrav <[email protected]>
CommitDate: 2026-06-29 13:49:20 +0000

    libc/resolv: Export __res_conf_name

    Add a new global variable, __res_conf_name, which is initialized to
    _PATH_RESCONF and used in its place by res_init().  This allows test
    programs (and applications) to select a different configuration file
    to read instead of /etc/resolv.conf.

    PR:             220610

 lib/libc/resolv/Symbol.map | 4 ++++
 lib/libc/resolv/res_init.c | 5 ++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

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