Replace vulnerable ip package with native implementation #43
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The
ippackage has known SSRF vulnerabilities (CVE-2023-42282, CVE-2024-29415) and is no longer maintained.This package only uses
ip.subnet().broadcastAddressfor SOOD discovery. I replaced it with a simple native function, rather than a new dependency, since the codebase only needs IPv4 support. (E.g. it uses udp4 sockets and has afamily == 'IPv4' filter.)