Test/update submodule

v2/hutils/crashlog_utils.go

@@ -0,0 +1,27 @@
+//go:build darwin || linux || android
+
+package hutils
+
+import (
+	"os"
+	"runtime/debug"
+)
+
+// RedirectStderr writes Go crash reports into path so they survive with no
+// terminal attached. Reimplemented locally after libbox.RedirectStderr became
+// private upstream. Windows has its own no-op variant.
+func RedirectStderr(path string) error {
+	if stats, err := os.Stat(path); err == nil && stats.Size() > 0 {
+		_ = os.Rename(path, path+".old")
+	}
+	outputFile, err := os.Create(path)
+	if err != nil {
+		return err
+	}
+	if err = debug.SetCrashOutput(outputFile, debug.CrashOptions{}); err != nil {
+		outputFile.Close()
+		os.Remove(outputFile.Name())
+		return err
+	}
+	return nil
+}

v2/hutils/linux_utils.go

@@ -9,14 +9,9 @@ import (
 	"path/filepath"
 	"strings"
 
-	"github.com/sagernet/sing-box/experimental/libbox"
 	"golang.org/x/sys/unix"
 )
 
-func RedirectStderr(path string) error {
-	return libbox.RedirectStderr(path)
-}
-
 func IsAdmin() bool {
 	return os.Getuid() == 0
 }