42 lines
993 B
Go
42 lines
993 B
Go
// Copyright (c) 2023-2024 Onur Cinar.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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// https://github.com/cinar/checker
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package v2
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import (
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"net"
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"reflect"
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)
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const (
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// nameCIDR is the name of the CIDR check.
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nameCIDR = "cidr"
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)
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var (
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// ErrNotCIDR indicates that the given value is not a valid CIDR.
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ErrNotCIDR = NewCheckError("NOT_CIDR")
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)
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// IsCIDR checks if the value is a valid CIDR notation IP address and prefix length.
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func IsCIDR(value string) (string, error) {
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_, _, err := net.ParseCIDR(value)
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if err != nil {
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return value, ErrNotCIDR
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}
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return value, nil
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}
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// checkCIDR checks if the value is a valid CIDR notation IP address and prefix length.
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func checkCIDR(value reflect.Value) (reflect.Value, error) {
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_, err := IsCIDR(value.Interface().(string))
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return value, err
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}
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// makeCIDR makes a checker function for the CIDR checker.
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func makeCIDR(_ string) CheckFunc[reflect.Value] {
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return checkCIDR
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}
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