Add preliminary VisualStudio support

 - Mostly workarounds/clutches in compat.h
 - Change getline return type to int
 - Replace C99 style flexible array with alloca
 - Add all the MSVC solution/project crap

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

4 files changed, 234 insertions, 11 deletions

diff --git a/lib/sqfs/Makemodule.am b/lib/sqfs/Makemodule.am
index 942c37c..6786ee2 100644
--- a/lib/sqfs/Makemodule.am
+++ b/lib/sqfs/Makemodule.am
@@ -113,3 +113,5 @@ lib_LTLIBRARIES += libsquashfs.la
 pkgconfig_DATA += lib/sqfs/libsquashfs0.pc
 
 EXTRA_DIST += lib/sqfs/comp/lz4/README lib/sqfs/comp/zlib/README
+EXTRA_DIST += lib/sqfs/libsqfs.vcxproj
+EXTRA_DIST += include/win32/config.h
diff --git a/lib/sqfs/comp/compressor.c b/lib/sqfs/comp/compressor.c
index 946ee25..2294b98 100644
--- a/lib/sqfs/comp/compressor.c
+++ b/lib/sqfs/comp/compressor.c
@@ -42,7 +42,7 @@ static const char *names[] = {
 
 int sqfs_generic_write_options(sqfs_file_t *file, const void *data, size_t size)
 {
-	sqfs_u8 buffer[size + 2];
+	sqfs_u8 *buffer = alloca(size + 2);
 	int ret;
 
 	*((sqfs_u16 *)buffer) = htole16(0x8000 | size);
@@ -58,7 +58,7 @@ int sqfs_generic_write_options(sqfs_file_t *file, const void *data, size_t size)
 
 int sqfs_generic_read_options(sqfs_file_t *file, void *data, size_t size)
 {
-	sqfs_u8 buffer[size + 2];
+	sqfs_u8 *buffer = alloca(size + 2);
 	int ret;
 
 	ret = file->read_at(file, sizeof(sqfs_super_t),
diff --git a/lib/sqfs/libsqfs.vcxproj b/lib/sqfs/libsqfs.vcxproj
new file mode 100644
index 0000000..176ba20
--- /dev/null
+++ b/lib/sqfs/libsqfs.vcxproj
@@ -0,0 +1,230 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <ProjectGuid>{7F732A8E-22A5-4DC1-B8DB-7091D37BE502}</ProjectGuid>
+    <RootNamespace>libsqfs</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+    <ProjectName>squashfs</ProjectName>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>DynamicLibrary</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v142</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+    <OutDir>$(SolutionDir)$(Configuration)\</OutDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+    <OutDir>$(SolutionDir)$(Configuration)\</OutDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS;WITH_GZIP;WITH_LZ4;NO_GZIP;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+      <AdditionalIncludeDirectories>$(SolutionDir)\include;$(SolutionDir)\include\win32;$(SolutionDir)\lib\sqfs\comp\zlib;$(SolutionDir)\lib\sqfs\comp\lz4;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <CompileAs>CompileAsC</CompileAs>
+      <ObjectFileName>$(IntDir)%(RelativeDir)</ObjectFileName>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;_CRT_SECURE_NO_WARNINGS;WITH_GZIP;WITH_LZ4;NO_GZIP;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+      <AdditionalIncludeDirectories>$(SolutionDir)\include;$(SolutionDir)\include\win32;$(SolutionDir)\lib\sqfs\comp\zlib;$(SolutionDir)\lib\sqfs\comp\lz4;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <CompileAs>CompileAsC</CompileAs>
+      <ObjectFileName>$(IntDir)%(RelativeDir)</ObjectFileName>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClInclude Include="..\..\include\sqfs\block.h" />
+    <ClInclude Include="..\..\include\sqfs\block_processor.h" />
+    <ClInclude Include="..\..\include\sqfs\block_writer.h" />
+    <ClInclude Include="..\..\include\sqfs\compressor.h" />
+    <ClInclude Include="..\..\include\sqfs\data_reader.h" />
+    <ClInclude Include="..\..\include\sqfs\dir.h" />
+    <ClInclude Include="..\..\include\sqfs\dir_reader.h" />
+    <ClInclude Include="..\..\include\sqfs\dir_writer.h" />
+    <ClInclude Include="..\..\include\sqfs\error.h" />
+    <ClInclude Include="..\..\include\sqfs\frag_table.h" />
+    <ClInclude Include="..\..\include\sqfs\id_table.h" />
+    <ClInclude Include="..\..\include\sqfs\inode.h" />
+    <ClInclude Include="..\..\include\sqfs\io.h" />
+    <ClInclude Include="..\..\include\sqfs\meta_reader.h" />
+    <ClInclude Include="..\..\include\sqfs\meta_writer.h" />
+    <ClInclude Include="..\..\include\sqfs\predef.h" />
+    <ClInclude Include="..\..\include\sqfs\super.h" />
+    <ClInclude Include="..\..\include\sqfs\table.h" />
+    <ClInclude Include="..\..\include\sqfs\xattr.h" />
+    <ClInclude Include="..\..\include\sqfs\xattr_reader.h" />
+    <ClInclude Include="..\..\include\sqfs\xattr_writer.h" />
+    <ClInclude Include="..\..\include\win32\config.h" />
+    <ClInclude Include="block_processor\internal.h" />
+    <ClInclude Include="comp\internal.h" />
+    <ClInclude Include="comp\lz4\lz4.h" />
+    <ClInclude Include="comp\lz4\lz4hc.h" />
+    <ClInclude Include="comp\zlib\deflate.h" />
+    <ClInclude Include="comp\zlib\inffast.h" />
+    <ClInclude Include="comp\zlib\inffixed.h" />
+    <ClInclude Include="comp\zlib\inflate.h" />
+    <ClInclude Include="comp\zlib\inftrees.h" />
+    <ClInclude Include="comp\zlib\trees.h" />
+    <ClInclude Include="comp\zlib\zconf.h" />
+    <ClInclude Include="comp\zlib\zlib.h" />
+    <ClInclude Include="comp\zlib\zutil.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\util\alloc.c" />
+    <ClCompile Include="..\util\str_table.c" />
+    <ClCompile Include="..\util\xxhash.c" />
+    <ClCompile Include="block_processor\common.c" />
+    <ClCompile Include="block_processor\winpthread.c" />
+    <ClCompile Include="block_writer.c" />
+    <ClCompile Include="comp\compressor.c" />
+    <ClCompile Include="comp\gzip.c" />
+    <ClCompile Include="comp\lz4.c" />
+    <ClCompile Include="comp\lz4\lz4.c" />
+    <ClCompile Include="comp\lz4\lz4hc.c" />
+    <ClCompile Include="comp\zlib\adler32.c" />
+    <ClCompile Include="comp\zlib\deflate.c" />
+    <ClCompile Include="comp\zlib\inffast.c" />
+    <ClCompile Include="comp\zlib\inflate.c" />
+    <ClCompile Include="comp\zlib\inftrees.c" />
+    <ClCompile Include="comp\zlib\trees.c" />
+    <ClCompile Include="comp\zlib\zutil.c" />
+    <ClCompile Include="data_reader.c" />
+    <ClCompile Include="dir_reader.c" />
+    <ClCompile Include="dir_writer.c" />
+    <ClCompile Include="frag_table.c" />
+    <ClCompile Include="id_table.c" />
+    <ClCompile Include="inode.c" />
+    <ClCompile Include="meta_reader.c" />
+    <ClCompile Include="meta_writer.c" />
+    <ClCompile Include="readdir.c" />
+    <ClCompile Include="read_inode.c" />
+    <ClCompile Include="read_super.c" />
+    <ClCompile Include="read_table.c" />
+    <ClCompile Include="read_tree.c" />
+    <ClCompile Include="super.c" />
+    <ClCompile Include="win32\io_file.c" />
+    <ClCompile Include="write_inode.c" />
+    <ClCompile Include="write_super.c" />
+    <ClCompile Include="write_table.c" />
+    <ClCompile Include="xattr.c" />
+    <ClCompile Include="xattr_reader.c" />
+    <ClCompile Include="xattr_writer.c" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/lib/sqfs/write_inode.c b/lib/sqfs/write_inode.c
index 787c4b5..d27d1b4 100644
--- a/lib/sqfs/write_inode.c
+++ b/lib/sqfs/write_inode.c
@@ -15,15 +15,6 @@
 
 #include <string.h>
 
-#if defined(_WIN32) || defined(__WINDOWS__)
-#	include <malloc.h>
-#	ifdef _MSC_VER
-#		define alloca _alloca
-#	endif
-#else
-#	include <alloca.h>
-#endif
-
 static int write_block_sizes(sqfs_meta_writer_t *ir,
 			     const sqfs_inode_generic_t *n)
 {