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Link local (#53)

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* Allow IPv4 Link Local addresses (#50)

* Allow IPv4 Link Local addresses

Allow the use of link local addresses

* Update sonyflake.go

* Update sonyflake.go

* Update a comment

---------

Co-authored-by: Flavio Crisciani <f.crisciani@gmail.com>
This commit is contained in:
Yoshiyuki Mineo
2024-04-30 15:06:58 +09:00
committed by GitHub
parent fc2f84a086
commit a0558cef64
1 changed files with 2 additions and 1 deletions
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3
sonyflake.go
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@@ -178,8 +178,9 @@ func privateIPv4(interfaceAddrs types.InterfaceAddrs) (net.IP, error) {
}
func isPrivateIPv4(ip net.IP) bool {
// Allow private IP addresses (RFC1918) and link-local addresses (RFC3927)
return ip != nil &&
(ip[0] == 10 || ip[0] == 172 && (ip[1] >= 16 && ip[1] < 32) || ip[0] == 192 && ip[1] == 168)
(ip[0] == 10 || ip[0] == 172 && (ip[1] >= 16 && ip[1] < 32) || ip[0] == 192 && ip[1] == 168 || ip[0] == 169 && ip[1] == 254)
}
func lower16BitPrivateIP(interfaceAddrs types.InterfaceAddrs) (uint16, error) {