113 lines
3.8 KiB
Factor
113 lines
3.8 KiB
Factor
! Copyright (C) 2008 Doug Coleman.
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! See http://factorcode.org/license.txt for BSD license.
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USING: help.markup help.syntax io.streams.string kernel quotations sequences strings math ;
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IN: unix.users
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HELP: all-users
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{ $values { "seq" sequence } }
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{ $description "Returns a sequence of high-level " { $link passwd } " tuples that are platform-dependent and field for field complete with the Unix " { $link passwd } " structure." } ;
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HELP: effective-user-name
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{ $values { "string" string } }
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{ $description "Returns the effective user-name for the current user." } ;
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HELP: effective-user-id
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{ $values { "id" integer } }
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{ $description "Returns the effective user-name id for the current user." } ;
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HELP: new-passwd
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{ $values { "passwd" passwd } }
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{ $description "Creates a new passwd tuple dependent on the operating system." } ;
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HELP: passwd
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{ $description "A platform-specific tuple correspding to every field from the Unix passwd struct. BSD passwd structures have four extra slots: " { $slot "change" } ", " { $slot "class" } "," { $slot "expire" } ", " { $slot "fields" } "." } ;
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HELP: user-cache
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{ $description "A symbol storing passwd structures indexed by user-ids when within a " { $link with-user-cache } "." } ;
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HELP: passwd>new-passwd
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{ $values
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{ "passwd" "a passwd struct" }
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{ "new-passwd" "a passwd tuple" } }
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{ $description "A platform-specific conversion routine from a passwd structure to a passwd tuple." } ;
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HELP: real-user-name
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{ $values { "string" string } }
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{ $description "The real user-name of the current user." } ;
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HELP: real-user-id
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{ $values { "id" integer } }
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{ $description "The real user id of the current user." } ;
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HELP: set-effective-user
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{ $values { "string/id" "a string or a user id" } }
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{ $description "Sets the current effective user given a user-name or a user id." } ;
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HELP: set-real-user
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{ $values { "string/id" "a string or a user id" } }
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{ $description "Sets the current real user given a user-name or a user id." } ;
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HELP: user-passwd
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{ $values
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{ "obj" object }
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{ "passwd/f" "passwd or f" } }
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{ $description "Returns the passwd tuple given a user-name string or user id." } ;
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HELP: user-name
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{ $values
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{ "id" integer }
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{ "string" string } }
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{ $description "Returns the user-name associated with the user id." } ;
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HELP: user-id
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{ $values
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{ "string" string }
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{ "id/f" "an integer or f" } }
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{ $description "Returns the user id associated with the user-name." } ;
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HELP: with-effective-user
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{ $values
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{ "string/id" "a string or a uid" } { "quot" quotation } }
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{ $description "Sets the effective user-name and calls the quotation. Restores the current user-name on success or on error after the call." } ;
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HELP: with-user-cache
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{ $values
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{ "quot" quotation } }
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{ $description "Iterates over the password file using library calls and creates a cache in the " { $link user-cache } " symbol. The cache is a hashtable indexed by user id. When looking up many users, this approach is much faster than calling system calls." } ;
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HELP: with-real-user
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{ $values
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{ "string/id" "a string or a uid" } { "quot" quotation } }
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{ $description "Sets the real user-name and calls the quotation. Restores the current user-name on success or on error after the call." } ;
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{
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real-user-name real-user-id set-real-user
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effective-user-name effective-user-id
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set-effective-user
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} related-words
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ARTICLE: "unix.users" "Unix users"
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"The " { $vocab-link "unix.users" } " vocabulary contains words that return information about Unix users."
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$nl
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"Listing all users:"
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{ $subsections all-users }
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"Real user:"
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{ $subsections
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real-user-name
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real-user-id
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set-real-user
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}
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"Effective user:"
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{ $subsections
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effective-user-name
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effective-user-id
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set-effective-user
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}
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"Combinators to change users:"
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{ $subsections
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with-real-user
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with-effective-user
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} ;
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ABOUT: "unix.users"
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