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32 lines
647 B
Go
32 lines
647 B
Go
package aghnet
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import (
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"net/netip"
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"strings"
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)
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// GenerateHostname generates the hostname from ip. In case of using IPv4 the
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// result should be like:
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//
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// 192-168-10-1
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//
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// In case of using IPv6, the result is like:
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//
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// ff80-f076-0000-0000-0000-0000-0000-0010
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//
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// ip must be either an IPv4 or an IPv6.
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func GenerateHostname(ip netip.Addr) (hostname string) {
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if !ip.IsValid() {
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// TODO(s.chzhen): Get rid of it.
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panic("aghnet generate hostname: invalid ip")
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}
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ip = ip.Unmap()
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hostname = ip.StringExpanded()
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if ip.Is4() {
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return strings.ReplaceAll(hostname, ".", "-")
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}
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return strings.ReplaceAll(hostname, ":", "-")
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}
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