forgejo/modules/util/net.go
Lunny Xiao 0704009dd7
Revert the minimal golang version requirement from 1.17 to 1.16 and add a warning in Makefile (#19319)
* Revert the minimal golang version requirement from 1.17 to 1.16 and add a warning in Makefile

* Apply suggestions from code review

Co-authored-by: John Olheiser <john.olheiser@gmail.com>

* 1.16

* Update modules/util/net.go

Co-authored-by: Gusted <williamzijl7@hotmail.com>

* correct bool conditional

yay tests for catching this :)

* Update hostmatcher.go

Co-authored-by: John Olheiser <john.olheiser@gmail.com>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Co-authored-by: Gusted <williamzijl7@hotmail.com>
2022-04-05 13:32:24 -04:00

19 lines
464 B
Go

// Copyright 2021 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package util
import (
"net"
)
// IsIPPrivate for net.IP.IsPrivate.
func IsIPPrivate(ip net.IP) bool {
if ip4 := ip.To4(); ip4 != nil {
return ip4[0] == 10 ||
(ip4[0] == 172 && ip4[1]&0xf0 == 16) ||
(ip4[0] == 192 && ip4[1] == 168)
}
return len(ip) == net.IPv6len && ip[0]&0xfe == 0xfc
}