Verify if binary exists before executing

pkg/os/exec.go

@@ -10,6 +10,8 @@ import (
 	"github.com/crc-org/crc/v2/pkg/crc/logging"
 )
 
+var privilegedCommand = "sudo"
+
 func runCmd(command string, args []string, env map[string]string) (string, string, error) {
 	cmd := exec.Command(command, args...) // #nosec G204
 	if len(env) != 0 {
@@ -44,11 +46,15 @@ func runPrivate(command string, args []string, env map[string]string) (string, s
 // RunPrivileged executes a command using sudo
 // provide a reason why root is needed as the first argument
 func RunPrivileged(reason string, cmdAndArgs ...string) (string, string, error) {
-	sudo, err := exec.LookPath("sudo")
+	sudo, err := exec.LookPath(privilegedCommand)
 	if err != nil {
 		return "", "", errors.New("sudo executable not found")
 	}
 	logging.Infof("Using root access: %s", reason)
+	_, err = exec.LookPath(cmdAndArgs[0])
+	if err != nil {
+		return "", "", errors.New(cmdAndArgs[0] + " executable not found")
+	}
 	return run(sudo, cmdAndArgs, map[string]string{})
 }
 

pkg/os/exec_test.go

@@ -0,0 +1,13 @@
+package os
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRunPrivileged(t *testing.T) {
+	privilegedCommand = "echo"
+	_, _, err := RunPrivileged("it should fail", "i-dont-exist")
+	assert.ErrorContains(t, err, "i-dont-exist executable not found")
+}