From c5478ea6d07c4f082981eebe1518eaed6f60aa59 Mon Sep 17 00:00:00 2001
From: Romein van Buren <romein@vburen.nl>
Date: Wed, 11 Jun 2025 22:32:46 +0200
Subject: [PATCH] Add debug print

---
 fmp/fmp_chunk.go | 10 +++++-----
 fmp/fmp_file.go  |  4 +++-
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/fmp/fmp_chunk.go b/fmp/fmp_chunk.go
index c10ba87..7103bad 100644
--- a/fmp/fmp_chunk.go
+++ b/fmp/fmp_chunk.go
@@ -128,16 +128,16 @@ func (ctx *FmpFile) readChunk(payload []byte) (*FmpChunk, error) {
 		length := payload[4]
 		return &FmpChunk{
 			Type:   FMP_CHUNK_LONG_KEY_VALUE,
-			Key:    parseVarUint32(payload[1 : 1+3]), // todo, won't work?
+			Key:    parseVarUint32(payload[1 : 1+3]),
 			Value:  payload[5 : 5+length],
 			Length: 5 + uint32(length),
 		}, nil
 	}
 	if payload[0] == 0x17 {
-		length := parseVarUint32(payload[1 : 1+3]) // todo, won't work?
+		length := uint32(binary.BigEndian.Uint16(payload[4 : 4+2]))
 		return &FmpChunk{
 			Type:   FMP_CHUNK_LONG_KEY_VALUE,
-			Key:    uint32(binary.BigEndian.Uint16(payload[4 : 4+2])),
+			Key:    uint32(binary.BigEndian.Uint16(payload[1 : 1+2])),
 			Value:  payload[6 : 6+length],
 			Length: 6 + uint32(length),
 		}, nil
@@ -175,12 +175,12 @@ func (ctx *FmpFile) readChunk(payload []byte) (*FmpChunk, error) {
 		}, nil
 	}
 	if payload[0] == 0x0F {
-		length := binary.BigEndian.Uint16(payload[3 : 3+2])
+		length := uint32(binary.BigEndian.Uint16(payload[3 : 3+2]))
 		return &FmpChunk{
 			Type:   FMP_CHUNK_SEGMENTED_DATA,
 			Index:  uint32(binary.BigEndian.Uint16(payload[1 : 1+2])),
 			Value:  payload[5 : 5+length],
-			Length: 5 + uint32(length),
+			Length: 5 + length,
 		}, nil
 	}
 
diff --git a/fmp/fmp_file.go b/fmp/fmp_file.go
index 5c0e23c..5554553 100644
--- a/fmp/fmp_file.go
+++ b/fmp/fmp_file.go
@@ -3,6 +3,7 @@ package fmp
 import (
 	"bytes"
 	"encoding/binary"
+	"encoding/hex"
 	"io"
 	"os"
 	"time"
@@ -57,6 +58,7 @@ func OpenFile(path string) (*FmpFile, error) {
 	ctx.Sectors = make([]*FmpSector, ctx.NumSectors)
 
 	for i := uint(0); i < ctx.NumSectors; i++ {
+		println("reading sector ", i)
 		sector, err := ctx.readSector()
 		if err != nil {
 			return nil, err
@@ -120,6 +122,7 @@ func (ctx *FmpFile) readSector() (*FmpSector, error) {
 	sector.Chunks = make([]*FmpChunk, 0)
 
 	for {
+		println(hex.EncodeToString(payload[0:2]))
 		chunk, err := ctx.readChunk(payload)
 		if err == io.EOF {
 			break
@@ -134,7 +137,6 @@ func (ctx *FmpFile) readSector() (*FmpSector, error) {
 		if chunk.Length == 0 {
 			panic("chunk length not set")
 		}
-		print(chunk.String() + "\n")
 		payload = payload[chunk.Length:]
 	}