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Source file src/os/user/user.go

Documentation: os/user

  // Copyright 2011 The Go Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style
  // license that can be found in the LICENSE file.
  
  // Package user allows user account lookups by name or id.
  package user
  
  import (
  	"strconv"
  )
  
  var (
  	userImplemented  = true // set to false by lookup_stubs.go's init
  	groupImplemented = true // set to false by lookup_stubs.go's init
  )
  
  // User represents a user account.
  type User struct {
  	// Uid is the user ID.
  	// On POSIX systems, this is a decimal number representing the uid.
  	// On Windows, this is a security identifier (SID) in a string format.
  	// On Plan 9, this is the contents of /dev/user.
  	Uid string
  	// Gid is the primary group ID.
  	// On POSIX systems, this is a decimal number representing the gid.
  	// On Windows, this is a SID in a string format.
  	// On Plan 9, this is the contents of /dev/user.
  	Gid string
  	// Username is the login name.
  	Username string
  	// Name is the user's real or display name.
  	// It might be blank.
  	// On POSIX systems, this is the first (or only) entry in the GECOS field
  	// list.
  	// On Windows, this is the user's display name.
  	// On Plan 9, this is the contents of /dev/user.
  	Name string
  	// HomeDir is the path to the user's home directory (if they have one).
  	HomeDir string
  }
  
  // Group represents a grouping of users.
  //
  // On POSIX systems Gid contains a decimal number representing the group ID.
  type Group struct {
  	Gid  string // group ID
  	Name string // group name
  }
  
  // UnknownUserIdError is returned by LookupId when a user cannot be found.
  type UnknownUserIdError int
  
  func (e UnknownUserIdError) Error() string {
  	return "user: unknown userid " + strconv.Itoa(int(e))
  }
  
  // UnknownUserError is returned by Lookup when
  // a user cannot be found.
  type UnknownUserError string
  
  func (e UnknownUserError) Error() string {
  	return "user: unknown user " + string(e)
  }
  
  // UnknownGroupIdError is returned by LookupGroupId when
  // a group cannot be found.
  type UnknownGroupIdError string
  
  func (e UnknownGroupIdError) Error() string {
  	return "group: unknown groupid " + string(e)
  }
  
  // UnknownGroupError is returned by LookupGroup when
  // a group cannot be found.
  type UnknownGroupError string
  
  func (e UnknownGroupError) Error() string {
  	return "group: unknown group " + string(e)
  }
  

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