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Replace c-ares with a DNS resolver in safe Rust - #47076

Draft

dylan-conway wants to merge 40 commits into

mainfrom

claude/c-ares-rust-replacement-xrtz9k

Draft

Replace c-ares with a DNS resolver in safe Rust#47076
dylan-conway wants to merge 40 commits into
mainfrom
claude/c-ares-rust-replacement-xrtz9k

Commits on Oct 27, 2026
- Remove c-ares from the build
  claude
  committed
  9521419
- Add bun_dns_resolver, a DNS stub resolver in safe Rust
  claude
  committed
  03b3107
- Move node:dns and Bun.dns onto bun_dns_resolver
  claude
  committed
  5404cd7
- dns_resolver: drop the dead_code allowance
  claude
  committed
  50ffa3c
- Update comments that spoke of c-ares
  claude
  committed
  4711cbb
- Rename cares_jsc to dns_resolver_jsc
  claude
  committed
  e82b78e
- dns: report a poll error to the resolver, and start tests against a local server
  claude
  committed
  7a28c6f
- Test node:dns resolvers against a scripted local server
  claude
  committed
  c28d338
- Test Bun.dns.lookup's search list against a local server
  claude
  committed
  ae2e559
- docs: the c-ares backend is Bun's own resolver now
  claude
  committed
  aaebf1b
- Merge remote-tracking branch 'origin/main' into claude/c-ares-rust-replacement-xrtz9k
  claude
  committed
  cb7e030
- dns_resolver: platform settings as data, and a scripted simulation
  claude
  committed
  b1f76f8
- dns_resolver: fixes from review, and tests that run it in a simulated world
  claude
  committed
  db67f9d
- dns: link iphlpapi on Windows, fix lints, and match c-ares more closely
  claude
  committed
  7fbaa46
- dns_resolver: one copy of the channel, and a second round against c-ares
  claude
  committed
  fc947f0
- dns_resolver: compare with logs of c-ares, and two scans that were quadratic
  claude
  committed
  a6943be
- test: the driver that the logs of c-ares came from
  claude
  committed
  e7236b1
- dns: fix bugs c-ares fixed after 1.34.9 or lost again, and rename and simplify the resolver
  claude
  committed
  c2c1e37
- [autofix.ci] apply automated fixes
  autofix-ci[bot]
  authored
  e25c1b0
- dns: golden scripts for `etc`, `readable` and CNAME answers
  claude
  committed
  a85fd3b
- test: one reader for the logs of c-ares, which now say what they are
  claude
  committed
  f8d00dc
- test: drop a DNS test that waited two seconds, and do not count a question that was sent again
  claude
  committed
  f437ce9
- dns: import what dns_sd.rs uses in dns_sd.rs
  claude
  committed
  7eea207
- dns_resolver: the cache passes on that a response cannot be written
  claude
  committed
  4929f07
- dns_resolver: what a second review found
  claude
  committed
  648bb68
- test: DNS tests say what they assert, and assert it
  claude
  committed
  5987b6c
- test: 83 more scripts compared with c-ares
  claude
  committed
  fd841cb
Commits on Oct 28, 2026
Commits on Oct 29, 2026
Commits on Nov 6, 2026
- Merge branch 'main' into claude/c-ares-rust-replacement-xrtz9k
  claude
  committed
  b3e456b
Commits on Nov 10, 2026
- Merge branch 'main' into claude/c-ares-rust-replacement-xrtz9k
  claude
  committed
  2ad55e6
- test: sweep the environment variables that the resolver reads
  claude
  committed
  5f5d5c6

Commits

Commits on Oct 27, 2026

Commits on Oct 28, 2026

Commits on Oct 29, 2026

Commits on Nov 6, 2026

Commits on Nov 10, 2026