BMFF: fix handling of boxes w/ zero length or type (backport #2612) #2354

	name: Linux-Ubuntu Matrix on PRs

	on: [pull_request]

	jobs:
	Linux:
	name: 'Ubuntu 20.04 - GCC, BuildType:${{matrix.build_type}}, SHARED:${{matrix.shared_libraries}}'
	runs-on: ubuntu-latest

	strategy:
	fail-fast: false
	matrix:
	build_type: [Release, Debug]
	shared_libraries: [ON, OFF]

	steps:
	- uses: actions/checkout@v3

	- name: install dependencies
	run: \|
	sudo apt-get install ninja-build
	pip3 install conan==1.59.0

	- name: Conan common config
	run: \|
	conan config install https://github.com/conan-io/conanclientcert.git
	conan profile new --detect default
	conan profile update settings.build_type=${{matrix.build_type}} default
	conan profile update settings.compiler.libcxx=libstdc++11 default

	- name: Run Conan
	run: \|
	mkdir build && cd build
	conan profile list
	conan profile show default
	conan install .. -o webready=True --build missing

	- name: Build
	run: \|
	cd build
	cmake -GNinja -DCMAKE_BUILD_TYPE=${{matrix.build_type}} -DBUILD_SHARED_LIBS=${{matrix.shared_libraries}} -DEXIV2_ENABLE_PNG=ON -DEXIV2_ENABLE_WEBREADY=ON -DEXIV2_ENABLE_CURL=ON -DEXIV2_BUILD_UNIT_TESTS=ON -DEXIV2_ENABLE_BMFF=ON -DEXIV2_TEAM_WARNINGS_AS_ERRORS=ON -DCMAKE_INSTALL_PREFIX=install ..
	cmake --build .

	- name: Install
	run: \|
	cd build
	cmake --build . --target install
	tree install

	- name: Test
	run: \|
	ctest --test-dir build --output-on-failure

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