c-ares-1.29.0

[Bruce Dubbs]

New minor version.

[thomas]

c-ares version 1.29.0 - May 24 2024

This is a feature and bugfix release.

Features:

• When using ARES_OPT_EVENT_THREAD, automatically reload system configuration when network conditions change. PR #759
• Apple: reimplement DNS configuration reading to more accurately pull DNS settings. PR #750
• Add observability into DNS server health via a server state callback, invoked whenever a query finishes. PR #744
• Add server failover retry behavior, where failed servers are retried with small probability after a minimum delay. PR #731

Changes:

• Mark ares_channel_t * as const in more places in the public API. PR #758

Bugfixes:

• Due to a logic flaw dns name compression writing was not properly implemented which would result in the name prefix not being written for a partial match. This could cause issues in various record types such as MX records when using the deprecated API. Regression introduced in 1.28.0. Issue #757
• Revert OpenBSD SOCK_DNS flag, it doesn't do what the docs say it does and causes c-ares to become non-functional. PR #754
• ares_getnameinfo(): loosen validation on salen parameter. Issue #752
• cmake: Android requires C99. PR #748
• ares_queue_wait_empty() does not honor timeout_ms >= 0. Issue #742

[thomas]

Fixed in [ffa739ab55]