Page MenuHomeFreeBSD
Differential D55011

libc/resolv: Switch default to loopback address
ClosedPublic
Actions

Authored by des on Jan 31 2026, 12:00 PM.
Tags
None
Referenced Files
F170726409: D55011.id.diff
Sun, Sep 6, 6:05 AM
Unknown Object (File)
Sat, Sep 5, 7:22 AM
Unknown Object (File)
Fri, Sep 4, 10:07 AM
Unknown Object (File)
Tue, Sep 1, 8:52 AM
Unknown Object (File)
Mon, Aug 24, 1:49 PM
Unknown Object (File)
Sun, Aug 23, 9:48 AM
Unknown Object (File)
Sun, Aug 23, 8:59 AM
Unknown Object (File)
Fri, Aug 21, 3:54 PM
View All 92 Files
Subscribers
emaste
imp

Details

Reviewers
kevans
Commits
rG6b0a4d67a952: libc/resolv: Switch default to loopback address
rGc137555c3f39: libc/resolv: Switch default to loopback address
rG1538284a5fdd: libc/resolv: Switch default to loopback address
Summary

If no resolver configuration was found, we would fall back to INADDR_ANY
and IN6ADDR_ANY. This made sense when it was first written thirty or
forty years ago but not today, especially since connecting to INADDR_ANY
or IN6ADDR_ANY is no longer supported. Switch to the loopback address
and simplify the code.

Note that (as the pre-existing comment in the code states) running
without a resolver configuration is not really supported. Still, if
we're going to have a hardcoded fallback, it might as well work.

PR: 291790
MFC after: 1 week

Diff Detail

Repository
rG FreeBSD src repository
Lint
Lint Skipped
Unit
Tests Skipped
Build Status
Buildable 70284
Build 67167: arc lint + arc unit

Revision Contents
Changeset List

PathSize
lib/
libc/
resolv/
67 lines

Diff 170847

View Options

lib/libc/resolv/res_init.c

Loading...