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| author | Ludovic Courtès <ludo@gnu.org> | 2015-05-08 14:59:00 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2015-05-08 16:35:32 +0200 |
| commit | 15137a29c23e4beab7641b6c6191fdff9716dea4 (patch) | |
| tree | 0bbe0f45d3c5c2970d12a7ef75b457bcc053fecf /gnu/system/nss.scm | |
| parent | 6b888efff627c0e50f45e22a6408a02232d3b87f (diff) | |
| download | guix-15137a29c23e4beab7641b6c6191fdff9716dea4.tar guix-15137a29c23e4beab7641b6c6191fdff9716dea4.tar.gz | |
nss: Add '%mdns-host-lookup-nss'.
* gnu/system/nss.scm (%mdns-host-lookup-nss): New variable.
* doc/guix.texi (Name Service Switch): Document it.
Diffstat (limited to 'gnu/system/nss.scm')
| -rw-r--r-- | gnu/system/nss.scm | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/gnu/system/nss.scm b/gnu/system/nss.scm index ec2d2517e7..f4d2855289 100644 --- a/gnu/system/nss.scm +++ b/gnu/system/nss.scm @@ -29,6 +29,8 @@ lookup-specification %default-nss + %mdns-host-lookup-nss + %files %compat %dns @@ -148,6 +150,27 @@ ;; Default NSS configuration. (name-service-switch)) +(define %mdns-host-lookup-nss + (name-service-switch + (hosts (list %files ;first, check /etc/hosts + + ;; If the above did not succeed, try with 'mdns_minimal'. + (name-service + (name "mdns_minimal") + + ;; 'mdns_minimal' is authoritative for '.local'. When it + ;; returns "not found", no need to try the next methods. + (reaction (lookup-specification + (not-found => return)))) + + ;; Then fall back to DNS. + (name-service + (name "dns")) + + ;; Finally, try with the "full" 'mdns'. + (name-service + (name "mdns")))))) + ;;; ;;; Serialization. |