Cannot list devices on Linux 20.04

[lordlycastle]

I do no get any output from this tool when I run spoof list on Linux OS.

I've narrowed down the condition it is failing to pass, it is the regular expression for parsing the output of ifconfig.

spoof/index.js

Line 117 in 58dd7de

const result = /(.*?)HWaddr(.*)/mi.exec(output)

Here is the output of `ifconfig`

br-420df7a1a7ee: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 172.27.0.1  netmask 255.255.0.0  broadcast 172.27.255.255
        inet6 fe80::42:10ff:fe81:e45a  prefixlen 64  scopeid 0x20<link>
        ether 02:42:10:81:e4:5a  txqueuelen 0  (Ethernet)
        RX packets 11438  bytes 2596038 (2.5 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 17119  bytes 2419291 (2.4 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

docker0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 172.17.0.1  netmask 255.255.0.0  broadcast 172.17.255.255
        inet6 fe80::42:efff:fe5b:5ba7  prefixlen 64  scopeid 0x20<link>
        ether 02:42:ef:5b:5b:a7  txqueuelen 0  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3  bytes 306 (306.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 3953586  bytes 723678103 (723.6 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3953586  bytes 723678103 (723.6 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp0s20f3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.178.35  netmask 255.255.255.0  broadcast 192.168.178.255
        inet6 2001:a61:243f:5101:94c1:c4f1:ccb6:5c1c  prefixlen 64  scopeid 0x0<global>
        inet6 2001:a61:243f:5101:5324:51f6:1c7d:6  prefixlen 64  scopeid 0x0<global>
        inet6 fd00::6adc:ffea:e940:a20c  prefixlen 64  scopeid 0x0<global>
        inet6 fe80::702d:52ab:7674:588d  prefixlen 64  scopeid 0x20<link>
        inet6 fd00::4bd6:4c28:c115:4ef6  prefixlen 64  scopeid 0x0<global>
        ether dc:41:a9:9f:a8:d5  txqueuelen 1000  (Ethernet)
        RX packets 20323810  bytes 13583854451 (13.5 GB)
        RX errors 0  dropped 334652  overruns 0  frame 0
        TX packets 13009338  bytes 7201165364 (7.2 GB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Do we know why the pattern of (.*?)HWaddr(.*) is expected? Can we improve this parsing?

[lordlycastle]

Searching on Google for others with similar output, it appears on Ubuntu it is not guaranteed to have HWaddr in ifconfig output. For example, on SO