Prevent shell response crashes

app/src/main/java/com/topjohnwu/magisk/utils/ByteArrayInOutStream.java

@@ -0,0 +1,18 @@
+package com.topjohnwu.magisk.utils;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+
+public class ByteArrayInOutStream extends ByteArrayOutputStream {
+    public ByteArrayInputStream getInputStream() {
+        ByteArrayInputStream in = new ByteArrayInputStream(buf, 0, count);
+        count = 0;
+        buf = new byte[32];
+        return in;
+    }
+
+    public void setBuffer(byte[] buffer) {
+        buf = buffer;
+        count = buffer.length;
+    }
+}