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ipv4

build

Package for conveniently working with IPv4 and CIDR ranges.

Examples

Get start and end IPs in a CIDR range:

left, right, err := ipv4.CIDR2Range("199.27.72.0/21")
if err != nil {
  log.Fatal(err)
}
fmt.Println(left, right)

Output:

199.27.72.0 199.27.79.255

Check if IP is IPv4 (works for CIDR too):

fmt.Println(ipv4.IsIPv4("10.0.0.0"))
fmt.Println(ipv4.IsIPv4("10.0.0.0/8"))

Output:

true
true

Check if IP is private:

fmt.Println(ipv4.IsPrivate("10.0.0.0"))

Output:

true

See GoDoc for more.

ipv4's People

Contributors

shawnps-sigsci avatar shawnps avatar client9 avatar sarah-sigsci avatar leaf-fastly avatar lsmith500 avatar

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