40 lines
781 B
Go
40 lines
781 B
Go
package checker
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import (
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"net"
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"reflect"
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)
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// CheckerIPV4 is the name of the checker.
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const CheckerIPV4 = "ipv4"
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// ResultNotIPV4 indicates that the given value is not an IPv4 address.
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const ResultNotIPV4 = "NOT_IP_V4"
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// IsIPV4 checks if the given value is an IPv4 address.
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func IsIPV4(value string) Result {
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ip := net.ParseIP(value)
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if ip == nil {
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return ResultNotIPV4
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}
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if ip.To4() == nil {
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return ResultNotIPV4
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}
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return ResultValid
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}
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// makeIPV4 makes a checker function for the ipV4 checker.
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func makeIPV4(_ string) CheckFunc {
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return checkIPV4
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}
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// checkIPV4 checks if the given value is an IPv4 address.
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func checkIPV4(value, _ reflect.Value) Result {
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if value.Kind() != reflect.String {
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panic("string expected")
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}
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return IsIPV4(value.String())
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}
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