 Garyandmultica-agent
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fce7920611
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feat: add DNS query/response layer with miekg/dns
Phase 1.2 implementation:
- internal/dns/types.go: DNS record type constants (A, AAAA, NS, CNAME, SOA,
MX, TXT, SRV, PTR, ANY) with QNameType helper and EDNS0 defaults
- internal/dns/query.go: Query/QueryWithExchange with UDP, configurable
EDNS0 buffer size, TCP fallback on truncation, always-TCP mode, configurable
retries with timeout, context support, and injectable ExchangeFunc for testing
- internal/dns/decode.go: Response classification (answer, referral, NODATA,
NXDOMAIN, SERVFAIL), CNAME chain extraction with dedup, truncation/RCODE
detection, and section extraction utilities
32 unit tests covering all acceptance criteria.
Co-authored-by: multica-agent <github@multica.ai>
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2026-06-05 15:14:56 +10:00 |
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gary