TYEclipse/dsh-ipcalc

README 摘要

dsh-ipcalc IP & subnet math toolbox for DeepSeek Harness (dsh). Three pure-math tools — zero runtime dependencies, no network I/O — so agents stop doing subnet arithmetic in their heads (where they frequently get it wrong). Tools Tool What it does ipv4 subnet Full subnet layout for an IPv4 CIDR: network, broadcast, netmask, wildcard, host range, address counts, integer forms and IANA classes ipv4 summarize Reduce a list of IPv4 addresses/ranges to the minimal covering CIDR list (merge + supernet) ip parse Validate, normalize (RFC 5952) and classify any IPv4/IPv6 address, including embedded IPv4-in-IPv6 forms Install Usage Semantics - Exact arithmetic — all math uses plain double arithmetic on 32-bit integers (values up to 2³² are exactly representable), so there is no bitwise-overflow risk. - /31 follows RFC 3021 — both addresses are reported as usable (point-to-point links). - /32 is a single host — first/last host equal the address itself. - Bare addresses are treated as /32 ; dotted netmasks ( /255.255.255.248 ) are accepted anywhere a prefix length is; non-contiguous masks are rejected. - RFC 5952 canonicalization — IPv6 is lowercased, leading zeros stripped, and the longest (l…

分类