From 8a1f305cc71135003ef78c919787bbc2865f77af Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Du=C5=A1an=20Poizl?= <nou.spiro@gmail.com>
Date: Mon, 16 Oct 2023 19:17:04 +0200
Subject: [PATCH] Fix incorrect header size

---
 CMakeLists.txt | 2 +-
 libxisf.cpp    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 86e768c..bb1580d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.14)
 
-project(libXISF VERSION 0.2.9 LANGUAGES CXX C
+project(libXISF VERSION 0.2.10 LANGUAGES CXX C
     HOMEPAGE_URL https://gitea.nouspiro.space/nou/libXISF
     DESCRIPTION "LibXISF is C++ library that can read and write XISF files produced by PixInsight.")
 
diff --git a/libxisf.cpp b/libxisf.cpp
index a98090d..935588c 100644
--- a/libxisf.cpp
+++ b/libxisf.cpp
@@ -957,7 +957,7 @@ void XISFWriterPrivate::writeHeader()
         offset += image._dataBlock.data.size();
     }
 
-    uint32_t headerSize = size - sizeof(signature);
+    uint32_t headerSize = header.size() - sizeof(signature);
     header.resize(size, 0);
     header.replace(8, sizeof(uint32_t), (const char*)&headerSize, sizeof(uint32_t));