mirror of
https://github.com/ergochat/ergo.git
synced 2024-11-29 15:40:02 +01:00
37 lines
621 B
Go
37 lines
621 B
Go
package irc
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import (
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"log"
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"net"
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"strings"
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)
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func IPString(addr net.Addr) string {
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addrStr := addr.String()
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ipaddr, _, err := net.SplitHostPort(addrStr)
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if err != nil {
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return addrStr
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}
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return ipaddr
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}
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func AddrLookupHostname(addr net.Addr) string {
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return LookupHostname(IPString(addr))
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}
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func LookupHostname(addr string) string {
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if DEBUG_NET {
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log.Printf("LookupHostname(%s)", addr)
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}
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names, err := net.LookupAddr(addr)
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if err != nil {
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return addr
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}
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hostname := strings.TrimSuffix(names[0], ".")
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if DEBUG_NET {
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log.Printf("LookupHostname(%s) → %s", addr, hostname)
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}
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return hostname
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}
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