diff --git a/native/jni/utils/cpio.cpp b/native/jni/utils/cpio.cpp
index 76e4ccb5e..a62754f58 100644
--- a/native/jni/utils/cpio.cpp
+++ b/native/jni/utils/cpio.cpp
@@ -109,7 +109,7 @@ bool cpio::exists(const char *name) {
 	return entries.count(name) != 0;
 }
 
-#define do_out(buf, len) pos += fwrite(buf, len, 1, out);
+#define do_out(buf, len) pos += fwrite(buf, 1, len, out);
 #define out_align() do_out(zeros, align_off(pos, 4))
 void cpio::dump(FILE *out) {
 	size_t pos = 0;
@@ -142,7 +142,7 @@ void cpio::dump(FILE *out) {
 	}
 	// Write trailer
 	sprintf(header, "070701%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x",
-			inode++, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 11, 0);
+			inode++, 0755, 0, 0, 1, 0, 0, 0, 0, 0, 0, 11, 0);
 	do_out(header, 110);
 	do_out("TRAILER!!!\0", 11);
 	out_align();
diff --git a/native/jni/utils/include/stream.h b/native/jni/utils/include/stream.h
index eaed8a144..b46d91d6e 100644
--- a/native/jni/utils/include/stream.h
+++ b/native/jni/utils/include/stream.h
@@ -4,8 +4,6 @@
 #include <stdio.h>
 #include <memory>
 
-// #include <utils.h>
-
 class stream;
 
 FILE *open_stream(stream *strm);
diff --git a/native/jni/utils/stream.cpp b/native/jni/utils/stream.cpp
index 607b4d026..a28734589 100644
--- a/native/jni/utils/stream.cpp
+++ b/native/jni/utils/stream.cpp
@@ -51,11 +51,11 @@ int stream::close() {
 }
 
 int filter_stream::read(void *buf, size_t len) {
-	return fread(buf, len, 1, fp);
+	return fread(buf, 1, len, fp);
 }
 
 int filter_stream::write(const void *buf, size_t len) {
-	return fwrite(buf, len, 1, fp);
+	return fwrite(buf, 1, len, fp);
 }
 
 int filter_stream::close() {