IPv4_MAX_STR_LEN variable

Longest an IPv4 address can be as text: 15 characters, from four three-digit octets plus three dots.

Signature:

IPv4_MAX_STR_LEN = 15

Remarks

Excludes any /prefix, so a CIDR record needs up to 18. Note the lower-case v, which is inconsistent with the other constants here but is the published name.

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