checker/ip.go
Onur Cinar f76f14c0ce
Added copyright header to the code. Fixes #112 (#114)
# Describe Request

Added copyright header to the code. 

Fixes #112

# Change Type

Documentation change.
2023-06-24 12:10:18 -07:00

44 lines
978 B
Go

// Package checker is a Go library for validating user input through struct tags.
//
// https://github.com/cinar/checker
//
// Copyright 2023 Onur Cinar. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
//
package checker
import (
"net"
"reflect"
)
// CheckerIP is the name of the checker.
const CheckerIP = "ip"
// ResultNotIP indicates that the given value is not an IP address.
const ResultNotIP = "NOT_IP"
// IsIP checks if the given value is an IP address.
func IsIP(value string) Result {
ip := net.ParseIP(value)
if ip == nil {
return ResultNotIP
}
return ResultValid
}
// makeIP makes a checker function for the ip checker.
func makeIP(_ string) CheckFunc {
return checkIP
}
// checkIP checks if the given value is an IP address.
func checkIP(value, _ reflect.Value) Result {
if value.Kind() != reflect.String {
panic("string expected")
}
return IsIP(value.String())
}