Package detail

range_check

keverw402.1kBSD-2-Clause4.1.0

This is a simple module to validate IP address, check ip address version, check if ip is within a range.

bun, IP Address, CIDR, V4

readme

no readme found 😢

changelog

Change Log

1.3.0 (Jul 23, 2016)

  • Started a ChangeLog
  • Improved readme
  • Updated ipaddr.js to latest version
  • Updated tests to use assert.equal, so if something returns something unexpected the test will crash.
  • Uppercase IP is preferred over ip or Ip in function names and docs
  • Function renaming
  • . All older versions still work
    • validip is now isIP
    • validRange is now isRange

1.4.0 (Jul 23, 2016)

  • added isV4 and isV6 functions
  • Fixed issue #12
  • Added storeIP, searchIP and displayIP functions

2.0.0 (June 30, 2020)

  • Converted project over to Typescript!
  • Breaking: No more export alias, including for the misspelled ones left for backwards compatibility in prior versions.
  • Breaking: version is now fully spelled out instead of ver.
  • Breaking: Lowercase now being used for storeIP and displayIP https://stackoverflow.com/a/27510980/458642 - This matches the RFC that states The characters "a", "b", "c", "d", "e", and "f" in an IPv6 address MUST be represented in lowercase.. So if you stored any of this where case-sensitivity might matter such as perhaps a database index, make sure you correct that before upgrading!

3.0.0 (June 27, 2024)

3.1.0 (July 18, 2024)

  • Added isPrivateIP function

3.2.0 (July 18, 2024)

  • Added isIPInRangeOrPrivate function

4.0.0 (May 17, 2025)

  • Enhanced isPrivateIP to check IPv4-mapped IPv6 addresses (e.g., ::ffff:192.168.1.1) for private ranges
  • Added automatic README version updating from package.json during build
  • Switched from Biome to Prettier for code formatting
  • Cleaned up leftover configuration from bun-lib-starter template
  • Fixed repository links in package.json

4.1.0 (May 26, 2025)

  • Added IPFingerprint function for creating consistent fingerprints from IP addresses
    • For IPv4: Uses the full address
    • For IPv6: Uses only the /64 network prefix (first 4 segments)
  • Added IPFingerprintHashed asynchronous function that creates SHA-256 hashed fingerprints
    • Uses Web Crypto API for cross-environment compatibility (browsers and Node.js/Bun)
    • Only hashes the IP address part, not the type prefix
  • Both functions properly handle special cases:
    • IPv4-mapped IPv6 addresses
    • IPv6 ULA ranges (fd00::/8)
    • Loopback addresses (::1)
    • Documentation prefixes (2001:db8::/32)
    • Global unicast addresses