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Source file src/os/user/user.go

     1	// Copyright 2011 The Go Authors. All rights reserved.
     2	// Use of this source code is governed by a BSD-style
     3	// license that can be found in the LICENSE file.
     4	
     5	// Package user allows user account lookups by name or id.
     6	package user
     7	
     8	import (
     9		"strconv"
    10	)
    11	
    12	var (
    13		userImplemented  = true // set to false by lookup_stubs.go's init
    14		groupImplemented = true // set to false by lookup_stubs.go's init
    15	)
    16	
    17	// User represents a user account.
    18	//
    19	// On POSIX systems Uid and Gid contain a decimal number
    20	// representing uid and gid. On windows Uid and Gid
    21	// contain security identifier (SID) in a string format.
    22	// On Plan 9, Uid, Gid, Username, and Name will be the
    23	// contents of /dev/user.
    24	type User struct {
    25		Uid      string // user ID
    26		Gid      string // primary group ID
    27		Username string
    28		Name     string
    29		HomeDir  string
    30	}
    31	
    32	// Group represents a grouping of users.
    33	//
    34	// On POSIX systems Gid contains a decimal number
    35	// representing the group ID.
    36	type Group struct {
    37		Gid  string // group ID
    38		Name string // group name
    39	}
    40	
    41	// UnknownUserIdError is returned by LookupId when
    42	// a user cannot be found.
    43	type UnknownUserIdError int
    44	
    45	func (e UnknownUserIdError) Error() string {
    46		return "user: unknown userid " + strconv.Itoa(int(e))
    47	}
    48	
    49	// UnknownUserError is returned by Lookup when
    50	// a user cannot be found.
    51	type UnknownUserError string
    52	
    53	func (e UnknownUserError) Error() string {
    54		return "user: unknown user " + string(e)
    55	}
    56	
    57	// UnknownGroupIdError is returned by LookupGroupId when
    58	// a group cannot be found.
    59	type UnknownGroupIdError string
    60	
    61	func (e UnknownGroupIdError) Error() string {
    62		return "group: unknown groupid " + string(e)
    63	}
    64	
    65	// UnknownGroupError is returned by LookupGroup when
    66	// a group cannot be found.
    67	type UnknownGroupError string
    68	
    69	func (e UnknownGroupError) Error() string {
    70		return "group: unknown group " + string(e)
    71	}
    72	

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