27 lines
554 B
Go
27 lines
554 B
Go
// Copyright 2025 The Go MCP SDK Authors. All rights reserved.
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// Use of this source code is governed by the license
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// that can be found in the LICENSE file.
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package util
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import (
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"net"
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"net/netip"
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"strings"
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)
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func IsLoopback(addr string) bool {
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host, _, err := net.SplitHostPort(addr)
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if err != nil {
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// If SplitHostPort fails, it might be just a host without a port.
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host = strings.Trim(addr, "[]")
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}
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if host == "localhost" {
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return true
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}
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ip, err := netip.ParseAddr(host)
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if err != nil {
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return false
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}
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return ip.IsLoopback()
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}
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