/usr/lib/ruby/1.8/drb/unix.rb is in libruby1.8 1.8.7.352-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 | require 'socket'
require 'drb/drb'
require 'tmpdir'
raise(LoadError, "UNIXServer is required") unless defined?(UNIXServer)
module DRb
class DRbUNIXSocket < DRbTCPSocket
def self.parse_uri(uri)
if /^drbunix:(.*?)(\?(.*))?$/ =~ uri
filename = $1
option = $3
[filename, option]
else
raise(DRbBadScheme, uri) unless uri =~ /^drbunix:/
raise(DRbBadURI, 'can\'t parse uri:' + uri)
end
end
def self.open(uri, config)
filename, option = parse_uri(uri)
filename.untaint
soc = UNIXSocket.open(filename)
self.new(uri, soc, config)
end
def self.open_server(uri, config)
filename, option = parse_uri(uri)
if filename.size == 0
soc = temp_server
filename = soc.path
uri = 'drbunix:' + soc.path
else
soc = UNIXServer.open(filename)
end
owner = config[:UNIXFileOwner]
group = config[:UNIXFileGroup]
if owner || group
require 'etc'
owner = Etc.getpwnam( owner ).uid if owner
group = Etc.getgrnam( group ).gid if group
File.chown owner, group, filename
end
mode = config[:UNIXFileMode]
File.chmod(mode, filename) if mode
self.new(uri, soc, config, true)
end
def self.uri_option(uri, config)
filename, option = parse_uri(uri)
return "drbunix:#{filename}", option
end
def initialize(uri, soc, config={}, server_mode = false)
super(uri, soc, config)
set_sockopt(@socket)
@server_mode = server_mode
@acl = nil
end
# import from tempfile.rb
Max_try = 10
private
def self.temp_server
tmpdir = Dir::tmpdir
n = 0
while true
begin
tmpname = sprintf('%s/druby%d.%d', tmpdir, $$, n)
lock = tmpname + '.lock'
unless File.exist?(tmpname) or File.exist?(lock)
Dir.mkdir(lock)
break
end
rescue
raise "cannot generate tempfile `%s'" % tmpname if n >= Max_try
#sleep(1)
end
n += 1
end
soc = UNIXServer.new(tmpname)
Dir.rmdir(lock)
soc
end
public
def close
return unless @socket
path = @socket.path if @server_mode
@socket.close
File.unlink(path) if @server_mode
@socket = nil
end
def accept
s = @socket.accept
self.class.new(nil, s, @config)
end
def set_sockopt(soc)
soc.fcntl(Fcntl::F_SETFL, Fcntl::FD_CLOEXEC) if defined? Fcntl::FD_CLOEXEC
end
end
DRbProtocol.add_protocol(DRbUNIXSocket)
end
|