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net: add LookupMX

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R=rsc
CC=golang-dev
https://golang.org/cl/1976049
This commit is contained in:
Corey Thomasson 2010-08-26 13:32:45 -04:00 committed by Russ Cox
parent 4d903504b3
commit ec72f9bf18
1 changed files with 19 additions and 0 deletions
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19
src/pkg/net/dnsclient.go
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@ -335,3 +335,22 @@ func LookupSRV(name string) (cname string, addrs []*SRV, err os.Error) {
} }
return return
} }
type MX struct {
Host string
Pref uint16
}
func LookupMX(name string) (entries []*MX, err os.Error) {
var records []dnsRR
_, records, err = lookup(name, dnsTypeMX)
if err != nil {
return
}
entries = make([]*MX, len(records))
for i := 0; i < len(records); i++ {
r := records[i].(*dnsRR_MX)
entries[i] = &MX{r.Mx, r.Pref}
}
return
}