1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
# Utility methods for interacting with POSIX objects; mostly user and group
module Puppet::Util::POSIX
# Retrieve a field from a POSIX Etc object. The id can be either an integer
# or a name. This only works for users and groups. It's also broken on
# some platforms, unfortunately.
def old_get_posix_field(space, field, id)
unless id
raise ArgumentError, "Did not get id"
end
if id =~ /^\d+$/
id = Integer(id)
end
prefix = "get" + space.to_s
if id.is_a?(Integer)
if id > Puppet[:maximum_uid].to_i
Puppet.err "Tried to get %s field for silly id %s" % [field, id]
return nil
end
method = (prefix + idfield(space).to_s).intern
else
method = (prefix + "nam").intern
end
begin
return Etc.send(method, id).send(field)
rescue ArgumentError => detail
# ignore it; we couldn't find the object
return nil
end
end
# A degenerate method of retrieving name/id mappings. The job of this method is
# to find a specific entry and then return a given field from that entry.
def get_posix_field(type, field, id)
idmethod = idfield(type)
integer = false
if id =~ /^\d+$/
id = Integer(id)
end
if id.is_a?(Integer)
integer = true
if id > Puppet[:maximum_uid].to_i
Puppet.err "Tried to get %s field for silly id %s" % [field, id]
return nil
end
end
Etc.send(type) do |object|
if integer and object.send(idmethod) == id
return object.send(field)
elsif object.name == id
return object.send(field)
end
end
# Apparently the group/passwd methods need to get reset; if we skip
# this call, then new users aren't found.
case type
when :passwd: Etc.send(:endpwent)
when :group: Etc.send(:endgrent)
end
return nil
end
# Determine what the field name is for users and groups.
def idfield(space)
case Puppet::Util.symbolize(space)
when :gr, :group: return :gid
when :pw, :user, :passwd: return :uid
else
raise ArgumentError.new("Can only handle users and groups")
end
end
# Get the GID of a given group, provided either a GID or a name
def gid(group)
get_posix_field(:group, :gid, group)
end
# Get the UID of a given user, whether a UID or name is provided
def uid(user)
get_posix_field(:passwd, :uid, user)
end
end
|
