[#83107] Alias Enumerable#include? to Enumerable#includes? — Alberto Almagro <albertoalmagro@...>

Hello,

9 messages 2017/10/04

[ruby-core:83436] [Ruby trunk Bug#13399] IPAddr accepts invalid address mask

From: knu@...
Date: 2017-10-21 08:03:16 UTC
List: ruby-core #83436
Issue #13399 has been updated by knu (Akinori MUSHA).


nobu (Nobuyoshi Nakada) wrote:
> After fixing it, I found that `drb/acl` depends on this behavior.

Thanks for the patch, but what do you mean by `drb/acl` depending on this behavior?

----------------------------------------
Bug #13399: IPAddr accepts invalid address mask
https://bugs.ruby-lang.org/issues/13399#change-67403

* Author: rtib (Tibor Repasi)
* Status: Assigned
* Priority: Normal
* Assignee: knu (Akinori MUSHA)
* Target version: 
* ruby -v: ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-darwin15]
* Backport: 2.2: UNKNOWN, 2.3: UNKNOWN, 2.4: UNKNOWN
----------------------------------------
API Class `IPAddr` can be initialised with e.g. '1.2.3.4/255.255.255.1', which is an invalid mask for an IPv4 address, however, `IPAddr.new` won't throw `ArgumentError`, nor `ip.ipv4?` will return `false`.

```ruby
$ cat iptest.rb
require 'ipaddr'

begin
  ip = IPAddr.new('1.2.3.4/255.255.255.1')
rescue ArgumentError
  puts 'ArgumentError was thrown'
end
puts 'IP address is valid' if ip.ipv4?
```
```
$ ruby iptest.rb
IP address is valid
```
```
$ ipcalc 1.2.3.4/255.255.255.1
INVALID NETMASK
INVALID MASK1:   255.255.255.1

Address:   1.2.3.4              00000001.00000010.00000011. 00000100
Netmask:   255.255.255.0 = 24   11111111.11111111.11111111. 00000000
Wildcard:  0.0.0.255            00000000.00000000.00000000. 11111111
=>
Network:   1.2.3.0/24           00000001.00000010.00000011. 00000000
HostMin:   1.2.3.1              00000001.00000010.00000011. 00000001
HostMax:   1.2.3.254            00000001.00000010.00000011. 11111110
Broadcast: 1.2.3.255            00000001.00000010.00000011. 11111111
Hosts/Net: 254                   Class A





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