Public bug reported:

The routel(8) shell script is meant to format the output of ip(8)
commands for human viewing, but the script is not robust enough.

Running 22.04.2 LTS jammy jellyfish, freshly installed on an AWS EC2
instance and then "apt upgrade"d.  (It's headless and remote, so it
can't submit bug reports.  I generated an apport file, but have no other
Ubuntu system that could re-parse it to submit the report.  But it's
here if it would be useful.)  The iproute2 package is:

iproute2:
  Installed: 5.15.0-1ubuntu2
  Candidate: 5.15.0-1ubuntu2
  Version table:
 *** 5.15.0-1ubuntu2 500
        500 http://us-east-2.ec2.archive.ubuntu.com/ubuntu jammy/main amd64 
Packages
        100 /var/lib/dpkg/status


Here's the raw output of ip(8):
$ ip route list table 0
default via 10.37.67.1 dev eth0 proto dhcp src 10.37.67.187 metric 100
10.37.64.2 via 10.37.67.1 dev eth0 proto dhcp src 10.37.67.187 metric 100
10.37.64.231 via 10.37.67.1 dev eth0 proto dhcp src 10.37.67.187 metric 100
10.37.65.30 via 10.37.67.1 dev eth0 proto dhcp src 10.37.67.187 metric 100
10.37.67.0/24 dev eth0 proto kernel scope link src 10.37.67.187 metric 100
10.37.67.1 dev eth0 proto dhcp scope link src 10.37.67.187 metric 100
local 10.37.67.187 dev eth0 table local proto kernel scope host src 10.37.67.187
broadcast 10.37.67.255 dev eth0 table local proto kernel scope link src 
10.37.67.187
local 127.0.0.0/8 dev lo table local proto kernel scope host src 127.0.0.1
local 127.0.0.1 dev lo table local proto kernel scope host src 127.0.0.1
broadcast 127.255.255.255 dev lo table local proto kernel scope link src 
127.0.0.1
::1 dev lo proto kernel metric 256 pref medium
fe80::/64 dev eth0 proto kernel metric 256 pref medium
local ::1 dev lo table local proto kernel metric 0 pref medium
local fe80::458:96ff:fe61:6829 dev eth0 table local proto kernel metric 0 pref 
medium
multicast ff00::/8 dev eth0 table local proto kernel metric 256 pref medium

Running routel, however, yields this:
$ routel
         target            gateway          source    proto    scope    dev tbl
        default         10.37.67.1    10.37.67.187     dhcp            eth0
     10.37.64.2         10.37.67.1    10.37.67.187     dhcp            eth0
   10.37.64.231         10.37.67.1    10.37.67.187     dhcp            eth0
    10.37.65.30         10.37.67.1    10.37.67.187     dhcp            eth0
    10.37.67.0/ 24                    10.37.67.187   kernel     link   eth0
     10.37.67.1                       10.37.67.187     dhcp     link   eth0
   10.37.67.187              local    10.37.67.187   kernel     host   eth0 
local
   10.37.67.255          broadcast    10.37.67.187   kernel     link   eth0 
local
     127.0.0.0/ 8            local       127.0.0.1   kernel     host     lo 
local
      127.0.0.1              local       127.0.0.1   kernel     host     lo 
local
127.255.255.255          broadcast       127.0.0.1   kernel     link     lo 
local
/usr/bin/routel: 48: shift:             ::1                                     
 kernel              lo
        fe80::/ 64                                   kernel            eth0
            ::1              local                   kernel              lo 
local
fe80::458:96ff:fe61:6829              local                   kernel            
eth0 local
can't shift that many


Splitting stdout and stderr for readability:
$ routel 2> /tmp/err
         target            gateway          source    proto    scope    dev tbl
        default         10.37.67.1    10.37.67.187     dhcp            eth0
     10.37.64.2         10.37.67.1    10.37.67.187     dhcp            eth0
   10.37.64.231         10.37.67.1    10.37.67.187     dhcp            eth0
    10.37.65.30         10.37.67.1    10.37.67.187     dhcp            eth0
    10.37.67.0/ 24                    10.37.67.187   kernel     link   eth0
     10.37.67.1                       10.37.67.187     dhcp     link   eth0
   10.37.67.187              local    10.37.67.187   kernel     host   eth0 
local
   10.37.67.255          broadcast    10.37.67.187   kernel     link   eth0 
local
     127.0.0.0/ 8            local       127.0.0.1   kernel     host     lo 
local
      127.0.0.1              local       127.0.0.1   kernel     host     lo 
local
127.255.255.255          broadcast       127.0.0.1   kernel     link     lo 
local
            ::1                                      kernel              lo
        fe80::/ 64                                   kernel            eth0
            ::1              local                   kernel              lo 
local
fe80::458:96ff:fe61:6829              local                   kernel            
eth0 local
$ cat /tmp/err
/usr/bin/routel: 48: shift: can't shift that many
$


It's giving the same errors as in Debian bug 875476 some six years ago, which 
was "fixed in upstream" and then apparently broken again.

** Affects: avahi (Ubuntu)
     Importance: Undecided
         Status: New

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to avahi in Ubuntu.
https://bugs.launchpad.net/bugs/2018330

Title:
  routel script gives shift errors

Status in avahi package in Ubuntu:
  New

Bug description:
  The routel(8) shell script is meant to format the output of ip(8)
  commands for human viewing, but the script is not robust enough.

  Running 22.04.2 LTS jammy jellyfish, freshly installed on an AWS EC2
  instance and then "apt upgrade"d.  (It's headless and remote, so it
  can't submit bug reports.  I generated an apport file, but have no
  other Ubuntu system that could re-parse it to submit the report.  But
  it's here if it would be useful.)  The iproute2 package is:

  iproute2:
    Installed: 5.15.0-1ubuntu2
    Candidate: 5.15.0-1ubuntu2
    Version table:
   *** 5.15.0-1ubuntu2 500
          500 http://us-east-2.ec2.archive.ubuntu.com/ubuntu jammy/main amd64 
Packages
          100 /var/lib/dpkg/status

  
  Here's the raw output of ip(8):
  $ ip route list table 0
  default via 10.37.67.1 dev eth0 proto dhcp src 10.37.67.187 metric 100
  10.37.64.2 via 10.37.67.1 dev eth0 proto dhcp src 10.37.67.187 metric 100
  10.37.64.231 via 10.37.67.1 dev eth0 proto dhcp src 10.37.67.187 metric 100
  10.37.65.30 via 10.37.67.1 dev eth0 proto dhcp src 10.37.67.187 metric 100
  10.37.67.0/24 dev eth0 proto kernel scope link src 10.37.67.187 metric 100
  10.37.67.1 dev eth0 proto dhcp scope link src 10.37.67.187 metric 100
  local 10.37.67.187 dev eth0 table local proto kernel scope host src 
10.37.67.187
  broadcast 10.37.67.255 dev eth0 table local proto kernel scope link src 
10.37.67.187
  local 127.0.0.0/8 dev lo table local proto kernel scope host src 127.0.0.1
  local 127.0.0.1 dev lo table local proto kernel scope host src 127.0.0.1
  broadcast 127.255.255.255 dev lo table local proto kernel scope link src 
127.0.0.1
  ::1 dev lo proto kernel metric 256 pref medium
  fe80::/64 dev eth0 proto kernel metric 256 pref medium
  local ::1 dev lo table local proto kernel metric 0 pref medium
  local fe80::458:96ff:fe61:6829 dev eth0 table local proto kernel metric 0 
pref medium
  multicast ff00::/8 dev eth0 table local proto kernel metric 256 pref medium

  Running routel, however, yields this:
  $ routel
           target            gateway          source    proto    scope    dev 
tbl
          default         10.37.67.1    10.37.67.187     dhcp            eth0
       10.37.64.2         10.37.67.1    10.37.67.187     dhcp            eth0
     10.37.64.231         10.37.67.1    10.37.67.187     dhcp            eth0
      10.37.65.30         10.37.67.1    10.37.67.187     dhcp            eth0
      10.37.67.0/ 24                    10.37.67.187   kernel     link   eth0
       10.37.67.1                       10.37.67.187     dhcp     link   eth0
     10.37.67.187              local    10.37.67.187   kernel     host   eth0 
local
     10.37.67.255          broadcast    10.37.67.187   kernel     link   eth0 
local
       127.0.0.0/ 8            local       127.0.0.1   kernel     host     lo 
local
        127.0.0.1              local       127.0.0.1   kernel     host     lo 
local
  127.255.255.255          broadcast       127.0.0.1   kernel     link     lo 
local
  /usr/bin/routel: 48: shift:             ::1                                   
   kernel              lo
          fe80::/ 64                                   kernel            eth0
              ::1              local                   kernel              lo 
local
  fe80::458:96ff:fe61:6829              local                   kernel          
  eth0 local
  can't shift that many

  
  Splitting stdout and stderr for readability:
  $ routel 2> /tmp/err
           target            gateway          source    proto    scope    dev 
tbl
          default         10.37.67.1    10.37.67.187     dhcp            eth0
       10.37.64.2         10.37.67.1    10.37.67.187     dhcp            eth0
     10.37.64.231         10.37.67.1    10.37.67.187     dhcp            eth0
      10.37.65.30         10.37.67.1    10.37.67.187     dhcp            eth0
      10.37.67.0/ 24                    10.37.67.187   kernel     link   eth0
       10.37.67.1                       10.37.67.187     dhcp     link   eth0
     10.37.67.187              local    10.37.67.187   kernel     host   eth0 
local
     10.37.67.255          broadcast    10.37.67.187   kernel     link   eth0 
local
       127.0.0.0/ 8            local       127.0.0.1   kernel     host     lo 
local
        127.0.0.1              local       127.0.0.1   kernel     host     lo 
local
  127.255.255.255          broadcast       127.0.0.1   kernel     link     lo 
local
              ::1                                      kernel              lo
          fe80::/ 64                                   kernel            eth0
              ::1              local                   kernel              lo 
local
  fe80::458:96ff:fe61:6829              local                   kernel          
  eth0 local
  $ cat /tmp/err
  /usr/bin/routel: 48: shift: can't shift that many
  $

  
  It's giving the same errors as in Debian bug 875476 some six years ago, which 
was "fixed in upstream" and then apparently broken again.

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