b3b48629a0
Convert valid IPv6 addresses to ip6.int PTR values. Convert valid IPv4 addresses to in-addr.arpa PTR values. Anything not valid is simply printed as is. Handles :: notation and embedded IPv4 addresses. If the address is followed by /n, the PTR is truncated to n bits.
5 lines
272 B
Text
5 lines
272 B
Text
Convert valid IPv6 addresses to ip6.int PTR values. Convert valid
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IPv4 addresses to in-addr.arpa PTR values. Anything not valid is
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simply printed as is. Handles :: notation and embedded IPv4
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addresses. If the address is followed by /n, the PTR is truncated
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to n bits.
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