82 lines
2.3 KiB
Plaintext
82 lines
2.3 KiB
Plaintext
(*
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Module: Nsswitch
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Parses /etc/nsswitch.conf
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Author: Raphael Pinson <raphink@gmail.com>
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About: Reference
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This lens tries to keep as close as possible to `man nsswitch.conf` where possible.
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About: Licence
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This file is licensed under the LGPL v2+, like the rest of Augeas.
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About: Lens Usage
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About: Configuration files
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This lens applies to /etc/nsswitch.conf. See <filter>.
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*)
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module Nsswitch =
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autoload xfm
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(************************************************************************
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* Group: USEFUL PRIMITIVES
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*************************************************************************)
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(* View: comment *)
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let comment = Util.comment
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(* View: empty *)
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let empty = Util.empty
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(* View: sep_colon
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The separator for database entries *)
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let sep_colon = del /:[ \t]*/ ": "
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(* View: database_kw
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The database specification like `passwd', `shadow', or `hosts' *)
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let database_kw = Rx.word
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(* View: service
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The service specification like `files', `db', or `nis' *)
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let service = [ label "service" . store Rx.word ]
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(* View: reaction
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The reaction on lookup result like `[NOTFOUND=return]'
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TODO: Use case-insensitive regexps when ticket #147 is fixed.
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*)
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let reaction =
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let status_kw = /[Ss][Uu][Cc][Cc][Ee][Ss][Ss]/
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| /[Nn][Oo][Tt][Ff][Oo][Uu][Nn][Dd]/
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| /[Uu][Nn][Aa][Vv][Aa][Ii][Ll]/
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| /[Tt][Rr][Yy][Aa][Gg][Aa][Ii][Nn]/
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in let action_kw = /[Rr][Ee][Tt][Uu][Rr][Nn]/
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| /[Cc][Oo][Nn][Tt][Ii][Nn][Uu][Ee]/
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| /[Mm][Ee][Rr][Gg][Ee]/
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in let negate = [ Util.del_str "!" . label "negate" ]
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in let reaction_entry = [ label "status" . negate?
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. store status_kw
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. Util.del_str "="
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. [ label "action" . store action_kw ] ]
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in Util.del_str "["
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. [ label "reaction"
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. (Build.opt_list reaction_entry Sep.space) ]
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. Util.del_str "]"
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(* View: database *)
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let database =
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[ label "database" . store database_kw
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. sep_colon
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. (Build.opt_list
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(service|reaction)
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Sep.space)
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. Util.comment_or_eol ]
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(* View: lns *)
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let lns = ( empty | comment | database )*
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(* Variable: filter *)
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let filter = (incl "/etc/nsswitch.conf")
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let xfm = transform lns filter
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