Octal and hexadecimal ipv4 address parsing

[arnabanimesh]

Windows ping command use inet_addr standard which recognizes octal and hexadecimal ipv4 addresses
e.g. 0xC00002EB => 192.0.2.235; 011.012.013.014 => 9.10.11.12

It would be great if this app could maintain parity with the functionality of traditional ping apps.

This gist provides a good reference

[orf]

I'm going to close this because Rust doesn't support it, and according to this PR (rust-lang/rust#83652) it says:

This confusion can lead to many security vulnerabilities. Therefore, in
IETF RFC 6943, it suggests to disallow octal/hexadecimal format in Ipv4
string all together.

Which is also noted here: https://doc.rust-lang.org/std/net/struct.Ipv4Addr.html#textual-representation