35 lines
704 B
Go
35 lines
704 B
Go
package xmpp
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import (
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"fmt"
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"net"
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)
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const (
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XMPP_CLIENT_PORT = 5222
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)
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// Perform a DNS SRV lookup and return an ordered list of "host:port" TCP
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// addresses for the JID's home server.
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func HomeServerAddrs(jid JID) (addr []string, err error) {
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// DNS lookup.
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_, addrs, err := net.LookupSRV("xmpp-client", "tcp", jid.Domain)
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if err != nil {
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return
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}
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// If there's nothing in DNS then assume the JID's domain and the standard
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// port will work.
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if len(addrs) == 0 {
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addr = []string{fmt.Sprintf("%s:%d", jid.Domain, XMPP_CLIENT_PORT)}
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return
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}
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// Build list of "host:port" strings.
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for _, a := range addrs {
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addr = append(addr, fmt.Sprintf("%s:%d", a.Target, a.Port))
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}
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return
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}
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