This is a clone/fork of https://github.com/miekg/dns
068c7e7c81
* Avoid using pointer to sync.RWMutex in ServeMux * Initialize ServeMux.z only when needed. This means the zero ServeMux is now valid and empty. * Add benchmark for ServeMux.match * Use strings.ToLower once in ServeMux.match strings.ToLower has a special path for ASCII-only (which q always should be), and avoids all allocations if the string is already lowercase (which most DNS labels should be). * Move NextLabel into for clause in ServeMux.match * Make ServeMux.ServeDNS easier to read * Fix the documentation of ServeMux.ServeDNS * Invoke HandleFailed directly in ServeMux.ServeDNS * Bail early in ServeMux.match if Handle never called * Fix typo in ServeMux.match * Improve documentation of ServeMux This just splits the massive wall of text up so it's easier to follow. * Fix typo in ServeMux.HandleRemove documentation * Replace strings.ToLower with once-allocating version strings.ToLower allocates twice for uppercase ASCII which causes an overall regression for this changeset. By writing our own custom version here we can avoid that allocation. When https://go-review.googlesource.com/c/go/+/137575 lands in a go release this can be removed. |
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| dnsutil | ||
| vendor/golang.org/x | ||
| .codecov.yml | ||
| .gitignore | ||
| .travis.yml | ||
| AUTHORS | ||
| CONTRIBUTORS | ||
| COPYRIGHT | ||
| Gopkg.lock | ||
| Gopkg.toml | ||
| LICENSE | ||
| Makefile.fuzz | ||
| Makefile.release | ||
| README.md | ||
| client.go | ||
| client_test.go | ||
| clientconfig.go | ||
| clientconfig_test.go | ||
| compress_generate.go | ||
| dane.go | ||
| defaults.go | ||
| dns.go | ||
| dns_bench_test.go | ||
| dns_test.go | ||
| dnssec.go | ||
| dnssec_keygen.go | ||
| dnssec_keyscan.go | ||
| dnssec_privkey.go | ||
| dnssec_test.go | ||
| doc.go | ||
| duplicate.go | ||
| duplicate_generate.go | ||
| duplicate_test.go | ||
| dyn_test.go | ||
| edns.go | ||
| edns_test.go | ||
| example_test.go | ||
| format.go | ||
| fuzz.go | ||
| generate.go | ||
| generate_test.go | ||
| issue_test.go | ||
| labels.go | ||
| labels_test.go | ||
| leak_test.go | ||
| length_test.go | ||
| listen_go111.go | ||
| listen_go_not111.go | ||
| msg.go | ||
| msg_generate.go | ||
| msg_helpers.go | ||
| msg_helpers_test.go | ||
| msg_test.go | ||
| nsecx.go | ||
| nsecx_test.go | ||
| parse_test.go | ||
| privaterr.go | ||
| privaterr_test.go | ||
| rawmsg.go | ||
| remote_test.go | ||
| reverse.go | ||
| rr_test.go | ||
| sanitize.go | ||
| sanitize_test.go | ||
| scan.go | ||
| scan_rr.go | ||
| scan_test.go | ||
| scanner.go | ||
| serve_mux.go | ||
| serve_mux_test.go | ||
| server.go | ||
| server_test.go | ||
| sig0.go | ||
| sig0_test.go | ||
| singleinflight.go | ||
| smimea.go | ||
| tlsa.go | ||
| tsig.go | ||
| tsig_test.go | ||
| types.go | ||
| types_generate.go | ||
| types_test.go | ||
| udp.go | ||
| udp_test.go | ||
| update.go | ||
| update_test.go | ||
| version.go | ||
| version_test.go | ||
| xfr.go | ||
| zcompress.go | ||
| zduplicate.go | ||
| zmsg.go | ||
| ztypes.go | ||
README.md
Alternative (more granular) approach to a DNS library
Less is more.
Complete and usable DNS library. All widely used Resource Records are supported, including the DNSSEC types. It follows a lean and mean philosophy. If there is stuff you should know as a DNS programmer there isn't a convenience function for it. Server side and client side programming is supported, i.e. you can build servers and resolvers with it.
We try to keep the "master" branch as sane as possible and at the bleeding edge of standards, avoiding breaking changes wherever reasonable. We support the last two versions of Go.
Goals
- KISS;
- Fast;
- Small API. If it's easy to code in Go, don't make a function for it.
Users
A not-so-up-to-date-list-that-may-be-actually-current:
- https://github.com/coredns/coredns
- https://cloudflare.com
- https://github.com/abh/geodns
- http://www.statdns.com/
- http://www.dnsinspect.com/
- https://github.com/chuangbo/jianbing-dictionary-dns
- http://www.dns-lg.com/
- https://github.com/fcambus/rrda
- https://github.com/kenshinx/godns
- https://github.com/skynetservices/skydns
- https://github.com/hashicorp/consul
- https://github.com/DevelopersPL/godnsagent
- https://github.com/duedil-ltd/discodns
- https://github.com/StalkR/dns-reverse-proxy
- https://github.com/tianon/rawdns
- https://mesosphere.github.io/mesos-dns/
- https://pulse.turbobytes.com/
- https://play.google.com/store/apps/details?id=com.turbobytes.dig
- https://github.com/fcambus/statzone
- https://github.com/benschw/dns-clb-go
- https://github.com/corny/dnscheck for http://public-dns.info/
- https://namesmith.io
- https://github.com/miekg/unbound
- https://github.com/miekg/exdns
- https://dnslookup.org
- https://github.com/looterz/grimd
- https://github.com/phamhongviet/serf-dns
- https://github.com/mehrdadrad/mylg
- https://github.com/bamarni/dockness
- https://github.com/fffaraz/microdns
- http://kelda.io
- https://github.com/ipdcode/hades (JD.COM)
- https://github.com/StackExchange/dnscontrol/
- https://www.dnsperf.com/
- https://dnssectest.net/
- https://dns.apebits.com
- https://github.com/oif/apex
- https://github.com/jedisct1/dnscrypt-proxy
- https://github.com/jedisct1/rpdns
- https://github.com/xor-gate/sshfp
- https://github.com/rs/dnstrace
- https://blitiri.com.ar/p/dnss (github mirror)
Send pull request if you want to be listed here.
Features
- UDP/TCP queries, IPv4 and IPv6;
- RFC 1035 zone file parsing ($INCLUDE, $ORIGIN, $TTL and $GENERATE (for all record types) are supported;
- Fast:
- Reply speed around ~ 80K qps (faster hardware results in more qps);
- Parsing RRs ~ 100K RR/s, that's 5M records in about 50 seconds;
- Server side programming (mimicking the net/http package);
- Client side programming;
- DNSSEC: signing, validating and key generation for DSA, RSA, ECDSA and Ed25519;
- EDNS0, NSID, Cookies;
- AXFR/IXFR;
- TSIG, SIG(0);
- DNS over TLS: optional encrypted connection between client and server;
- DNS name compression;
- Depends only on the standard library.
Have fun!
Miek Gieben - 2010-2012 - miek@miek.nl
Building
Building is done with the go tool. If you have setup your GOPATH correctly, the following should
work:
go get github.com/miekg/dns
go build github.com/miekg/dns
Examples
A short "how to use the API" is at the beginning of doc.go (this also will show
when you call godoc github.com/miekg/dns).
Example programs can be found in the github.com/miekg/exdns repository.
Supported RFCs
all of them
- 103{4,5} - DNS standard
- 1348 - NSAP record (removed the record)
- 1982 - Serial Arithmetic
- 1876 - LOC record
- 1995 - IXFR
- 1996 - DNS notify
- 2136 - DNS Update (dynamic updates)
- 2181 - RRset definition - there is no RRset type though, just []RR
- 2537 - RSAMD5 DNS keys
- 2065 - DNSSEC (updated in later RFCs)
- 2671 - EDNS record
- 2782 - SRV record
- 2845 - TSIG record
- 2915 - NAPTR record
- 2929 - DNS IANA Considerations
- 3110 - RSASHA1 DNS keys
- 3225 - DO bit (DNSSEC OK)
- 340{1,2,3} - NAPTR record
- 3445 - Limiting the scope of (DNS)KEY
- 3597 - Unknown RRs
- 403{3,4,5} - DNSSEC + validation functions
- 4255 - SSHFP record
- 4343 - Case insensitivity
- 4408 - SPF record
- 4509 - SHA256 Hash in DS
- 4592 - Wildcards in the DNS
- 4635 - HMAC SHA TSIG
- 4701 - DHCID
- 4892 - id.server
- 5001 - NSID
- 5155 - NSEC3 record
- 5205 - HIP record
- 5702 - SHA2 in the DNS
- 5936 - AXFR
- 5966 - TCP implementation recommendations
- 6605 - ECDSA
- 6725 - IANA Registry Update
- 6742 - ILNP DNS
- 6840 - Clarifications and Implementation Notes for DNS Security
- 6844 - CAA record
- 6891 - EDNS0 update
- 6895 - DNS IANA considerations
- 6975 - Algorithm Understanding in DNSSEC
- 7043 - EUI48/EUI64 records
- 7314 - DNS (EDNS) EXPIRE Option
- 7477 - CSYNC RR
- 7828 - edns-tcp-keepalive EDNS0 Option
- 7553 - URI record
- 7858 - DNS over TLS: Initiation and Performance Considerations
- 7871 - EDNS0 Client Subnet
- 7873 - Domain Name System (DNS) Cookies (draft-ietf-dnsop-cookies)
- 8080 - EdDSA for DNSSEC
Loosely based upon
ldnsNSDNet::DNSGRONG