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https://bitbucket.org/s_l_teichmann/mtsatellite
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37 lines
587 B
Go
37 lines
587 B
Go
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// Copyright 2014 by Sascha L. Teichmann
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// Use of this source code is governed by the MIT license
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// that can be found in the LICENSE file.
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package main
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import (
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"net"
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"strings"
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)
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func ipsFromHosts(hosts string) ([]net.IP, error) {
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ips := []net.IP{}
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if len(hosts) == 0 { // Empty list: allow all hosts.
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return ips, nil
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}
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for _, host := range strings.Split(hosts, ";") {
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if hips, err := net.LookupIP(host); err != nil {
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return nil, err
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} else {
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ips = append(ips, hips...)
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}
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}
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return ips, nil
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}
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func min(a, b int) int {
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if a < b {
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return a
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}
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return b
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}
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