Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/inputs/smartctl/smartctl_scan.go

@@ -0,0 +1,46 @@
+package smartctl
+
+import (
+	"encoding/json"
+	"fmt"
+	"time"
+
+	"github.com/influxdata/telegraf/internal"
+)
+
+// This is here so we can override it during testing
+var scanArgs = []string{"--json", "--scan-open"}
+
+type scanDevice struct {
+	Name string
+	Type string
+}
+
+func (s *Smartctl) scan() ([]scanDevice, error) {
+	cmd := execCommand(s.Path, scanArgs...)
+	if s.UseSudo {
+		cmd = execCommand("sudo", append([]string{"-n", s.Path}, scanArgs...)...)
+	}
+	out, err := internal.CombinedOutputTimeout(cmd, time.Duration(s.Timeout))
+	if err != nil {
+		return nil, fmt.Errorf("error running smartctl with %s: %w", scanArgs, err)
+	}
+
+	var scan smartctlScanJSON
+	if err := json.Unmarshal(out, &scan); err != nil {
+		return nil, fmt.Errorf("error unmarshalling smartctl scan output: %w", err)
+	}
+
+	devices := make([]scanDevice, 0)
+	for _, device := range scan.Devices {
+		if s.deviceFilter.Match(device.Name) {
+			device := scanDevice{
+				Name: device.Name,
+				Type: device.Type,
+			}
+			devices = append(devices, device)
+		}
+	}
+
+	return devices, nil
+}