61 lines
1.3 KiB
Go
61 lines
1.3 KiB
Go
package main
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import (
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"fmt"
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"net"
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"strings"
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)
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const myResolverHost string = "resolver.dnscrypt.info"
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func Resolve(name string) {
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fmt.Printf("Resolving [%s]\n\n", name)
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fmt.Printf("Domain exists: ")
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ns, err := net.LookupNS(name)
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if err != nil || len(ns) == 0 {
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if name == "." {
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fmt.Println("'No' would mean that the Internet doesn't exist any more, and that would be very sad. On the bright side, you just found an easter egg.")
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} else {
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fmt.Println("probably not, or blocked by the proxy")
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}
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} else {
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fmt.Printf("yes, %d name servers found\n", len(ns))
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}
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fmt.Printf("Canonical name: ")
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cname, err := net.LookupCNAME(name)
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if err != nil {
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fmt.Println("-")
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} else {
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fmt.Println(cname)
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}
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fmt.Printf("IP addresses: ")
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addrs, err := net.LookupHost(name)
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if err != nil {
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fmt.Println("-")
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} else {
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fmt.Println(strings.Join(addrs, ", "))
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}
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fmt.Printf("TXT records: ")
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txt, err := net.LookupTXT(name)
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if err != nil {
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fmt.Println("-")
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} else {
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fmt.Println(strings.Join(txt, " "))
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}
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resIP, err := net.LookupHost(myResolverHost)
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if err == nil && len(resIP) > 0 {
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fmt.Printf("Resolver IP: %s", resIP[0])
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rev, err := net.LookupAddr(resIP[0])
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if err == nil && len(rev) > 0 {
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fmt.Printf(" (%s)", rev[0])
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}
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fmt.Println("")
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}
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fmt.Println("")
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}
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