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963 B

package dns
import (
"bytes"
"context"
"fmt"
"io"
"os"
"time"
"darvaza.org/core"
"github.com/libdns/libdns"
)
// Show shows current DNS entries
func (mgr *Manager) Show(ctx context.Context, names ...string) error {
recs, err := mgr.GetRecords(ctx, names...)
if err != nil {
return core.Wrap(err, "GetRecords")
}
SortRecords(recs)
return writeRecords(recs, os.Stdout)
}
func writeRecords(recs []libdns.Record, w io.Writer) error {
var buf bytes.Buffer
for _, rr := range recs {
_ = fmtRecord(&buf, rr)
_, _ = buf.WriteRune('\n')
}
_, _ = fmt.Fprintf(&buf, "; %v records\n", len(recs))
_, err := buf.WriteTo(w)
return err
}
func fmtRecord(w io.Writer, rr libdns.Record) error {
ttl := int(rr.TTL / time.Second)
if ttl < 1 {
ttl = 1
}
_, err := fmt.Fprintf(w, "%s\t%v\tIN\t%s\t%s",
rr.Name,
ttl,
rr.Type,
rr.Value)
if err == nil {
if rr.ID != "" {
_, err = fmt.Fprintf(w, "\t; %s", rr.ID)
}
}
return err
}