cmd/resolver: print the Answer ReceivedAt and AccessedAt from now

Instead of printing the full date and time, print the ReceivedAt and
AccessedAt fields in the perspective of current time.
For example, 1m ago, 30s ago.

1 files changed, 10 insertions, 4 deletions

diff --git a/cmd/resolver/resolver.go b/cmd/resolver/resolver.go
index 8804851..80d837d 100644
--- a/cmd/resolver/resolver.go
+++ b/cmd/resolver/resolver.go
@@ -275,7 +275,11 @@ func populateQueries(cr *libnet.ResolvConf, qname string) (queries []string) {
 // printAnswers print list of DNS Answer to stdout.
 func printAnswers(answers []*dns.Answer) {
 	var (
+		timeNow = time.Now()
+
 		answer     *dns.Answer
+		receivedAt time.Duration
+		accessedAt time.Duration
 		format     string
 		header     string
 		line       strings.Builder
@@ -289,7 +293,7 @@ func printAnswers(answers []*dns.Answer) {
 		}
 	}
 
-	format = fmt.Sprintf("%%4s | %%%ds | %%4s | %%5s | %%30s | %%30s", maxNameLen)
+	format = fmt.Sprintf("%%4s | %%%ds | %%4s | %%5s | %%12s | %%12s", maxNameLen)
 	header = fmt.Sprintf(format, "#", "Name", "Type", "Class", "Received at", "Accessed at")
 	for x = 0; x < len(header); x++ {
 		line.WriteString("-")
@@ -298,13 +302,15 @@ func printAnswers(answers []*dns.Answer) {
 	fmt.Println(header)
 	fmt.Println(line.String())
 
-	format = fmt.Sprintf("%%4d | %%%ds | %%4s | %%5s | %%30s | %%30s\n", maxNameLen)
+	format = fmt.Sprintf("%%4d | %%%ds | %%4s | %%5s | %%12s | %%12s\n", maxNameLen)
 	for x, answer = range answers {
+		receivedAt = timeNow.Sub(time.Unix(answer.ReceivedAt, 0)).Truncate(time.Second)
+		accessedAt = timeNow.Sub(time.Unix(answer.AccessedAt, 0)).Truncate(time.Second)
 		fmt.Printf(format, x, answer.QName,
 			dns.RecordTypeNames[answer.RType],
 			dns.RecordClassName[answer.RClass],
-			time.Unix(answer.ReceivedAt, 0),
-			time.Unix(answer.AccessedAt, 0),
+			receivedAt.String()+" ago",
+			accessedAt.String()+" ago",
 		)
 	}
 }