add sendfile method for streamsocket (#4007)

* add sendfile method for streamsocket

* add mswsock.lib to the project files and templates

* remove /DPOCO_NO_AUTOMATIC_LIBS for cmake windows build

* merge from upstream

* merge from upstream

* fix code stile
add NotImplemented exception for unsupported platforms
exculude <sys/sendfile.h> for POCO_EMSCRIPTEN, because https://
github.com/emscripten-core/emscripten/pull/16234

* add iostream include for std::cout

* fix compilation for emscripten (wrap sendfile)

.github/workflows/ci.yml

@@ -350,7 +350,7 @@ jobs:
         class CppUnit::TestCaller<class HTTPSStreamFactoryTest>.testProxy
     steps:
       - uses: actions/checkout@v3
-      - run: cmake -S. -Bcmake-build -DENABLE_NETSSL_WIN=ON -DENABLE_NETSSL=OFF -DENABLE_CRYPTO=OFF -DENABLE_JWT=OFF -DENABLE_DATA=ON -DENABLE_DATA_ODBC=ON -DENABLE_DATA_MYSQL=OFF -DENABLE_DATA_POSTGRESQL=OFF -DENABLE_TESTS=ON
+      - run: cmake -S. -Bcmake-build -DENABLE_NETSSL_WIN=ON -DENABLE_NETSSL=OFF -DENABLE_CRYPTO=OFF -DENABLE_JWT=OFF -DENABLE_DATA=ON -DENABLE_DATA_ODBC=ON -DENABLE_DATA_MYSQL=OFF -DENABLE_DATA_POSTGRESQL=OFF -DENABLE_TESTS=ON -DCMAKE_CXX_FLAGS="/MP /EHsc" -DCMAKE_C_FLAGS="/MP"
       - run: cmake --build cmake-build --config Release
       - uses: ./.github/actions/retry-action
         with:

CppParser/testsuite/TestSuite.progen

@@ -7,4 +7,4 @@ vc.project.platforms = Win32
 vc.project.configurations = debug_shared, release_shared, debug_static_mt, release_static_mt, debug_static_md, release_static_md
 vc.project.prototype = TestSuite_vs90.vcproj
 vc.project.compiler.include = ..\\..\\Foundation\\include
-vc.project.linker.dependencies = iphlpapi.lib
+vc.project.linker.dependencies = iphlpapi.lib mswsock.lib

Crypto/Crypto.progen

@@ -12,7 +12,7 @@ vc.project.compiler.defines =
 vc.project.compiler.defines.shared = ${vc.project.name}_EXPORTS
 vc.project.compiler.defines.debug_shared = ${vc.project.compiler.defines.shared}
 vc.project.compiler.defines.release_shared = ${vc.project.compiler.defines.shared}
-vc.project.linker.dependencies = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md = Crypt32.lib

Crypto/samples/genrsakey/genrsakey.progen

@@ -7,7 +7,7 @@ vc.project.platforms = Win32
 vc.project.configurations = debug_shared, release_shared, debug_static_mt, release_static_mt, debug_static_md, release_static_md
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Crypto\\include
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md = Crypt32.lib

Crypto/testsuite/TestSuite.progen

@@ -8,7 +8,7 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = TestSuite_vs90.vcproj
 vc.project.compiler.include = ${vc.project.pocobase}\\Foundation\\include
 vc.project.compiler.defines = _CRT_SECURE_NO_WARNINGS
-vc.project.linker.dependencies = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md =

Data/MySQL/testsuite/TestSuite.progen

@@ -9,4 +9,4 @@ vc.project.prototype = TestSuite_vs90.vcproj
 mysql = ${vc.project.pocobase}\\mysql
 vc.project.compiler.include = ${mysql}\\include;${vc.project.pocobase}\\Foundation\\include; \
 	${vc.project.pocobase}\\Data\\include;${vc.project.pocobase}\\Data\\src
-vc.project.linker.dependencies.Win32 = iphlpapi.lib
+vc.project.linker.dependencies.Win32 = iphlpapi.lib mswsock.lib

Data/ODBC/testsuite/TestSuite.progen

@@ -7,4 +7,4 @@ vc.project.platforms = Win32
 vc.project.configurations = debug_shared, release_shared, debug_static_mt, release_static_mt, debug_static_md, release_static_md
 vc.project.prototype = TestSuite_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\CppUnit\\include;..\\..\\..\\Foundation\\include;..\\..\\..\\Data\\include;..\\..\\..\\Data\\src;..\\..\\..\\Data\\testsuite\\DataTest\\include
-vc.project.linker.dependencies = odbc32.lib odbccp32.lib iphlpapi.lib
+vc.project.linker.dependencies = odbc32.lib odbccp32.lib iphlpapi.lib mswsock.lib

Data/PostgreSQL/testsuite/TestSuite.progen

@@ -10,7 +10,7 @@ postgresql = ${vc.project.pocobase}\\postgresql
 vc.project.compiler.include = ${postgresql}\\include;${vc.project.pocobase}\\Foundation\\include; \
 	${vc.project.pocobase}\\Data\\include;${vc.project.pocobase}\\Data\\src
 vc.project.compiler.defines = _CRT_SECURE_NO_WARNINGS
-vc.project.linker.dependencies = iphlpapi.lib
+vc.project.linker.dependencies = iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md =

Data/SQLite/testsuite/TestSuite.progen

@@ -7,4 +7,4 @@ vc.project.platforms = Win32
 vc.project.configurations = debug_shared, release_shared, debug_static_mt, release_static_mt, debug_static_md, release_static_md
 vc.project.prototype = TestSuite_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\Data\\include;..\\..\\..\\Data\\src
-vc.project.linker.dependencies = iphlpapi.lib
+vc.project.linker.dependencies = iphlpapi.lib mswsock.lib

Data/samples/Binding/Binding.progen

@@ -7,4 +7,4 @@ vc.project.platforms = Win32
 vc.project.configurations = debug_shared, release_shared, debug_static_mt, release_static_mt, debug_static_md, release_static_md
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Data\\include;..\\..\\..\\Data\\src;..\\..\\..\\Data\\SQLite\\include
-vc.project.linker.dependencies = iphlpapi.lib
+vc.project.linker.dependencies = iphlpapi.lib mswsock.lib

Data/samples/RecordSet/RecordSet.progen

@@ -7,4 +7,4 @@ vc.project.platforms = Win32
 vc.project.configurations = debug_shared, release_shared, debug_static_mt, release_static_mt, debug_static_md, release_static_md
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Data\\include;..\\..\\..\\Data\\src;..\\..\\..\\Data\\SQLite\\include
-vc.project.linker.dependencies = iphlpapi.lib
+vc.project.linker.dependencies = iphlpapi.lib mswsock.lib

Data/samples/RowFormatter/RowFormatter.progen

@@ -7,4 +7,4 @@ vc.project.platforms = Win32
 vc.project.configurations = debug_shared, release_shared, debug_static_mt, release_static_mt, debug_static_md, release_static_md
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Data\\include;..\\..\\..\\Data\\src;..\\..\\..\\Data\\SQLite\\include
-vc.project.linker.dependencies = iphlpapi.lib
+vc.project.linker.dependencies = iphlpapi.lib mswsock.lib

Data/samples/Tuple/Tuple.progen

@@ -7,4 +7,4 @@ vc.project.platforms = Win32
 vc.project.configurations = debug_shared, release_shared, debug_static_mt, release_static_mt, debug_static_md, release_static_md
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Data\\include;..\\..\\..\\Data\\src;..\\..\\..\\Data\\SQLite\\include
-vc.project.linker.dependencies = iphlpapi.lib
+vc.project.linker.dependencies = iphlpapi.lib mswsock.lib

Data/samples/TypeHandler/TypeHandler.progen

@@ -7,4 +7,4 @@ vc.project.platforms = Win32
 vc.project.configurations = debug_shared, release_shared, debug_static_mt, release_static_mt, debug_static_md, release_static_md
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Data\\include;..\\..\\..\\Data\\src;..\\..\\..\\Data\\SQLite\\include
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Data/samples/WebNotifier/WebNotifier.progen

@@ -7,4 +7,4 @@ vc.project.platforms = Win32
 vc.project.configurations = debug_shared, release_shared, debug_static_mt, release_static_mt, debug_static_md, release_static_md
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\Data\\include;..\\..\\..\\Data\\src;..\\..\\..\\Data\\SQLite\\include;..\\..\\..\\Net\\include
-vc.project.linker.dependencies = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies = ws2_32.lib iphlpapi.lib mswsock.lib

Data/testsuite/TestSuite.progen

@@ -11,4 +11,4 @@ vc.project.prototype = TestSuite_vs90.vcproj
 #vc.project.compiler.std.c=stdc11
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
 vc.project.compiler.include = ..\\src;..\\..\\Foundation\\include
-vc.project.linker.dependencies.Win32 = iphlpapi.lib
+vc.project.linker.dependencies.Win32 = iphlpapi.lib mswsock.lib

Encodings/Compiler/Compiler.progen

@@ -12,5 +12,5 @@ vc.project.compiler.defines =
 vc.project.compiler.defines.shared =
 vc.project.compiler.defines.debug_shared = ${vc.project.compiler.defines.shared}
 vc.project.compiler.defines.release_shared = ${vc.project.compiler.defines.shared}
-vc.project.linker.dependencies = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.solution.create = true

Encodings/samples/TextConverter/TextConverter.progen

@@ -7,4 +7,4 @@ vc.project.platforms = Win32
 vc.project.configurations = debug_shared, release_shared, debug_static_mt, release_static_mt, debug_static_md, release_static_md
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\Encodings\\include
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/include/Poco/FileStream.h

@@ -47,6 +47,9 @@ class Foundation_API FileIOS: public virtual std::ios
 	/// On Windows platforms, UTF-8 encoded Unicode paths are correctly handled.
 {
 public:
+
+	using NativeHandle = FileStreamBuf::NativeHandle;
+
 	FileIOS();
 		/// Creates the basic stream.
 
@@ -63,6 +66,12 @@ public:
 	FileStreamBuf* rdbuf();
 		/// Returns a pointer to the underlying streambuf.
 
+	NativeHandle nativeHandle() const;
+		/// Returns native file descriptor handle
+
+	Poco::UInt64 size() const;
+		/// Returns file size
+
 protected:
 	FileStreamBuf _buf;
 };

Foundation/include/Poco/FileStream_POSIX.h

@@ -31,6 +31,8 @@ class Foundation_API FileStreamBuf: public BufferedBidirectionalStreamBuf
 	/// This stream buffer handles Fileio
 {
 public:
+	using NativeHandle = int;
+	
 	FileStreamBuf();
 		/// Creates a FileStreamBuf.
 
@@ -50,6 +52,12 @@ public:
 	std::streampos seekpos(std::streampos pos, std::ios::openmode mode = std::ios::in | std::ios::out);
 		/// Change to specified position, according to mode.
 
+	NativeHandle nativeHandle() const;
+		/// Returns native file descriptor handle
+	
+	Poco::UInt64 size() const;
+		/// Returns file size
+
 protected:
 	enum
 	{
@@ -61,7 +69,7 @@ protected:
 
 private:
 	std::string _path;
-	int _fd;
+	NativeHandle _fd;
 	std::streamoff _pos;
 };
 

Foundation/include/Poco/FileStream_WIN32.h

@@ -30,6 +30,8 @@ class Foundation_API FileStreamBuf: public BufferedBidirectionalStreamBuf
 	/// This stream buffer handles Fileio
 {
 public:
+	using NativeHandle = HANDLE;
+	
 	FileStreamBuf();
 		/// Creates a FileStreamBuf.
 
@@ -49,6 +51,12 @@ public:
 	std::streampos seekpos(std::streampos pos, std::ios::openmode mode = std::ios::in | std::ios::out);
 		/// change to specified position, according to mode
 
+	NativeHandle nativeHandle() const;
+		/// Returns native file descriptor handle
+
+	Poco::UInt64 size() const;
+		/// Returns file size
+
 protected:
 	enum
 	{
@@ -60,7 +68,7 @@ protected:
 
 private:
 	std::string _path;
-	HANDLE _handle;
+	NativeHandle _handle;
 	UInt64 _pos;
 };
 

Foundation/samples/ActiveMethod/ActiveMethod.progen

@@ -7,4 +7,4 @@ vc.project.platforms = Win32
 vc.project.configurations = debug_shared, release_shared, debug_static_mt, release_static_mt, debug_static_md, release_static_md
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/Activity/Activity.progen

@@ -7,4 +7,4 @@ vc.project.platforms = Win32
 vc.project.configurations = debug_shared, release_shared, debug_static_mt, release_static_mt, debug_static_md, release_static_md
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/BinaryReaderWriter/BinaryReaderWriter.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/DateTime/DateTime.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/LineEndingConverter/LineEndingConverter.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/LogRotation/LogRotation.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/Logger/Logger.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/NotificationQueue/NotificationQueue.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/StringTokenizer/StringTokenizer.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/Timer/Timer.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/URI/URI.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/base64decode/base64decode.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/base64encode/base64encode.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/deflate/deflate.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/dir/dir.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/grep/grep.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/hmacmd5/hmacmd5.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/inflate/inflate.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/md5/md5.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/samples/uuidgen/uuidgen.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Foundation/src/FileStream.cpp

@@ -50,6 +50,16 @@ FileStreamBuf* FileIOS::rdbuf()
 }
 
 
+FileIOS::NativeHandle FileIOS::nativeHandle() const
+{
+	return _buf.nativeHandle();
+}
+
+
+Poco::UInt64 FileIOS::size() const {
+	return _buf.size();
+}
+
 FileInputStream::FileInputStream():
 	std::istream(&_buf)
 {

Foundation/src/FileStream_POSIX.cpp

@@ -19,6 +19,8 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <unistd.h>
+#include <cstdio>
+#include <cstring>
 
 
 namespace Poco {
@@ -167,4 +169,21 @@ std::streampos FileStreamBuf::seekpos(std::streampos pos, std::ios::openmode mod
 }
 
 
+FileStreamBuf::NativeHandle FileStreamBuf::nativeHandle() const
+{
+	return _fd;
+}
+
+Poco::UInt64 FileStreamBuf::size() const
+{
+	struct stat stat_buf;
+	int rc = fstat(_fd, &stat_buf);
+	if (rc < 0)
+	{
+		Poco::SystemException(strerror(errno), errno);
+	}
+	return stat_buf.st_size;
+}
+
+
 } // namespace Poco

Foundation/src/FileStream_WIN32.cpp

@@ -199,4 +199,23 @@ std::streampos FileStreamBuf::seekpos(std::streampos pos, std::ios::openmode mod
 }
 
 
+FileStreamBuf::NativeHandle FileStreamBuf::nativeHandle() const
+{
+	return _handle;
+}
+
+Poco::UInt64 FileStreamBuf::size() const
+{
+	LARGE_INTEGER result;
+	result.QuadPart = 0;
+	DWORD high = 0;
+	result.LowPart = ::GetFileSize(_handle, &high);
+	if (high > 0)
+	{
+		result.HighPart = high;
+	}
+	return result.QuadPart;
+}
+
+
 } // namespace Poco

JSON/samples/Benchmark/Benchmark.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\JSON\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

JSON/testsuite/TestSuite.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = TestSuite_vs90.vcproj
 vc.project.compiler.include = ..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = iphlpapi.lib
+vc.project.linker.dependencies.Win32 = iphlpapi.lib mswsock.lib

JWT/testsuite/TestSuite.progen

@@ -8,7 +8,7 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = TestSuite_vs90.vcproj
 vc.project.compiler.include = ..\\..\\Foundation\\include;..\\..\\JSON\\include;..\\..\\Crypto\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md = Crypt32.lib

MongoDB/samples/SQLToMongo/SQLToMongo.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\Net\\include;..\\..\\..\\MongoDB\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

MongoDB/testsuite/TestSuite.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = TestSuite_vs90.vcproj
 vc.project.compiler.include = ..\\..\\Foundation\\include;..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Net/CMakeLists.txt

@@ -28,7 +28,7 @@ set_target_properties(Net
 target_link_libraries(Net PUBLIC Poco::Foundation)
 # Windows and WindowsCE need additional libraries
 if(WIN32)
-	target_link_libraries(Net PUBLIC "iphlpapi.lib")
+	target_link_libraries(Net PUBLIC "iphlpapi.lib" "mswsock.lib")
 	if(WINCE)
 		target_link_libraries(Net PUBLIC "ws2.lib")
 	else()

Net/Net.progen

@@ -13,6 +13,6 @@ vc.project.compiler.defines.shared = ${vc.project.name}_EXPORTS
 vc.project.compiler.defines.debug_shared = ${vc.project.compiler.defines.shared}
 vc.project.compiler.defines.release_shared = ${vc.project.compiler.defines.shared}
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.solution.create = true
 vc.solution.include = testsuite\\TestSuite

Net/include/Poco/Net/SocketImpl.h

@@ -27,6 +27,11 @@
 
 
 namespace Poco {
+
+
+class FileInputStream;
+
+
 namespace Net {
 
 
@@ -473,6 +478,11 @@ public:
 	bool initialized() const;
 		/// Returns true iff the underlying socket is initialized.
 
+	Poco::Int64 sendFile(FileInputStream &FileInputStream, Poco::UInt64 offset = 0);
+		/// Sends file using system function
+		/// for posix systems - with sendfile[64](...)
+		/// for windows - with TransmitFile(...)
+
 protected:
 	SocketImpl();
 		/// Creates a SocketImpl.

Net/include/Poco/Net/StreamSocket.h

@@ -24,6 +24,11 @@
 
 
 namespace Poco {
+
+
+class FileInputStream;
+
+
 namespace Net {
 
 
@@ -253,6 +258,11 @@ public:
 		/// The preferred way for a socket to receive urgent data
 		/// is by enabling the SO_OOBINLINE option.
 
+	Poco::Int64 sendFile(FileInputStream &FileInputStream, Poco::UInt64 offset = 0);
+		/// Sends file using system function
+		/// for posix systems - with sendfile[64](...)
+		/// for windows - with TransmitFile(...)
+
 	StreamSocket(SocketImpl* pImpl);
 		/// Creates the Socket and attaches the given SocketImpl.
 		/// The socket takes ownership of the SocketImpl.

Net/samples/EchoServer/EchoServer.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Net/samples/HTTPFormServer/HTTPFormServer.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Net/samples/HTTPLoadTest/HTTPLoadTest.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Net/samples/HTTPTimeServer/HTTPTimeServer.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Net/samples/Mail/Mail.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Net/samples/Ping/Ping.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Net/samples/SMTPLogger/SMTPLogger.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Net/samples/TimeServer/TimeServer.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Net/samples/WebSocketServer/WebSocketServer.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Net/samples/dict/dict.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Net/samples/download/download.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Net/samples/httpget/httpget.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Net/samples/ifconfig/ifconfig.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Net/samples/tcpserver/tcpserver.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Net/src/SocketImpl.cpp

@@ -17,12 +17,15 @@
 #include "Poco/Net/StreamSocketImpl.h"
 #include "Poco/NumberFormatter.h"
 #include "Poco/Timestamp.h"
+#include "Poco/FileStream.h"
+#include "Poco/Error.h"
 #include <string.h> // FD_SET needs memset on some platforms, so we can't use <cstring>
 
 
 #if defined(POCO_HAVE_FD_EPOLL)
 	#ifdef POCO_OS_FAMILY_WINDOWS
 		#include "wepoll.h"
+		#include "mswsock.h"
 	#else
 		#include <sys/epoll.h>
 		#include <sys/eventfd.h>
@@ -42,9 +45,21 @@
 
 #ifdef POCO_OS_FAMILY_WINDOWS
 #include <windows.h>
+#else
+#include <csignal>
 #endif
 
 
+#if POCO_OS == POCO_OS_MAC_OS_X || POCO_OS == POCO_OS_FAMILY_BSD
+#include <sys/uio.h>
+#include <sys/types.h>
+using sighandler_t = sig_t;
+#endif
+
+#if POCO_OS == POCO_OS_LINUX && !defined(POCO_EMSCRIPTEN)
+#include <sys/sendfile.h>
+#endif
+
 #if defined(_MSC_VER)
 #pragma warning(disable:4996) // deprecation warnings
 #endif
@@ -1358,5 +1373,81 @@ void SocketImpl::error(int code, const std::string& arg)
 	}
 }
 
+#ifdef POCO_OS_FAMILY_WINDOWS
+Poco::Int64 SocketImpl::sendFile(FileInputStream &fileInputStream, Poco::UInt64 offset)
+{
+	FileIOS::NativeHandle fd = fileInputStream.nativeHandle();
+	Poco::UInt64 fileSize = fileInputStream.size();
+	std::streamoff sentSize = fileSize - offset;
+	LARGE_INTEGER offsetHelper;
+	offsetHelper.QuadPart = offset;
+	OVERLAPPED overlapped;
+	memset(&overlapped, 0, sizeof(overlapped));
+	overlapped.Offset = offsetHelper.LowPart;
+	overlapped.OffsetHigh =  offsetHelper.HighPart;
+	overlapped.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
+	if (overlapped.hEvent == nullptr)
+	{
+		return -1;
+	}
+	bool result = TransmitFile(_sockfd, fd, sentSize, 0, &overlapped, nullptr, 0);
+	if (!result)
+	{
+		int err = WSAGetLastError();
+		if ((err != ERROR_IO_PENDING) && (WSAGetLastError() != WSA_IO_PENDING)) {
+			CloseHandle(overlapped.hEvent);
+			error(err, Error::getMessage(err));
+		}
+		WaitForSingleObject(overlapped.hEvent, INFINITE);
+	}
+	CloseHandle(overlapped.hEvent);
+	return sentSize;
+}
+#else
+Poco::Int64 _sendfile(poco_socket_t sd, FileIOS::NativeHandle fd, Poco::UInt64 offset,std::streamoff sentSize)
+{
+	Poco::Int64 sent = 0;
+#ifdef __USE_LARGEFILE64
+	sent = sendfile64(sd, fd, (off64_t *)&offset, sentSize);
+#else
+#if POCO_OS == POCO_OS_LINUX && !defined(POCO_EMSCRIPTEN)
+	sent = sendfile(sd, fd, (off_t *)&offset, sentSize);
+#elif POCO_OS == POCO_OS_MAC_OS_X
+	int result = sendfile(fd, sd, offset, &sentSize, nullptr, 0);
+	if (result < 0)
+	{
+		sent = -1;
+	} 
+	else 
+	{
+		sent = sentSize;
+	}
+#else
+	throw Poco::NotImplementedException("sendfile not implemented for this platform");
+#endif
+#endif
+	if (errno == EAGAIN || errno == EWOULDBLOCK) 
+	{
+		sent = 0;
+	}
+	return sent;
+}
+
+Poco::Int64 SocketImpl::sendFile(FileInputStream &fileInputStream, Poco::UInt64 offset)
+{
+	FileIOS::NativeHandle fd = fileInputStream.nativeHandle();
+	Poco::UInt64 fileSize = fileInputStream.size();
+	std::streamoff sentSize = fileSize - offset;
+	Poco::Int64 sent = 0;
+	sighandler_t sigPrev = signal(SIGPIPE, SIG_IGN);
+	while (sent == 0)
+	{
+		errno = 0;
+		sent = _sendfile(_sockfd, fd, offset, sentSize);
+	}
+	signal(SIGPIPE, sigPrev != SIG_ERR ? sigPrev : SIG_DFL);
+	return sent;
+}
+#endif // POCO_OS_FAMILY_WINDOWS
 
 } } // namespace Poco::Net

Net/src/StreamSocket.cpp

@@ -213,5 +213,9 @@ void StreamSocket::sendUrgent(unsigned char data)
 	impl()->sendUrgent(data);
 }
 
+Poco::Int64 StreamSocket::sendFile(FileInputStream &fileInputStream, Poco::UInt64 offset)
+{
+	return impl()->sendFile(fileInputStream, offset);
+}
 
 } } // namespace Poco::Net

Net/testsuite/TestSuite.progen

@@ -8,5 +8,5 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = TestSuite_vs90.vcproj
 vc.project.compiler.include = ..\\..\\Foundation\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies = iphlpapi.lib
+vc.project.linker.dependencies = iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.Win32 = ws2_32.lib

Net/testsuite/src/SocketStreamTest.cpp

@@ -19,7 +19,10 @@
 #include "Poco/Net/NetException.h"
 #include "Poco/Timespan.h"
 #include "Poco/Stopwatch.h"
-
+#include "Poco/FileStream.h"
+#include "Poco/File.h"
+#include "Poco/Path.h"
+#include <iostream>
 
 using Poco::Net::Socket;
 using Poco::Net::SocketStream;
@@ -31,7 +34,9 @@ using Poco::Timespan;
 using Poco::Stopwatch;
 using Poco::TimeoutException;
 using Poco::InvalidArgumentException;
-
+using Poco::FileInputStream;
+using Poco::FileOutputStream;
+using Poco::File;
 
 SocketStreamTest::SocketStreamTest(const std::string& name): CppUnit::TestCase(name)
 {
@@ -119,6 +124,62 @@ void SocketStreamTest::testEOF()
 	ss.close();
 }
 
+void SocketStreamTest::testSendFile()
+{
+	const int fileSize = 64000;
+	std::string payload(fileSize, 'x');
+	Poco::Path testFilePath = Poco::Path::temp().append("test.sendfile.txt");
+	const std::string fileName = testFilePath.toString();
+	{
+		File f(fileName);
+		if (f.exists())
+		{
+			f.remove();
+		}
+	}
+	FileOutputStream fout(fileName);
+	fout << payload;
+	fout.close();
+	FileInputStream fin(fileName);
+	EchoServer echoServer;
+	StreamSocket ss;
+	ss.connect(SocketAddress("127.0.0.1", echoServer.port()));
+	
+	SocketStream str(ss);
+
+	Poco::UInt64 offset = 0;
+	Poco::Int64 sent = 0;
+	try
+	{
+	sent = ss.sendFile(fin);
+	}
+	catch (Poco::NotImplementedException &)
+	{
+		std::cout << "[NOT IMPLEMENTED]\n";
+		return;
+	}
+	assertTrue(sent >= 0);
+	while (sent < fileSize)
+	{
+		offset = sent;
+		sent = ss.sendFile(fin, offset);
+		assertTrue(sent >= 0);
+	}
+	str.flush();
+	assertTrue (str.good());
+	ss.shutdownSend();
+
+	assertTrue (str.gcount() == 0);
+	char buffer[fileSize];
+	str.read(buffer, sizeof(buffer));
+	assertTrue (str.good());
+	assertTrue (str.gcount() == fileSize);
+
+	ss.close();
+	fin.close();
+	File f(fileName);
+	f.remove();
+}
 
 void SocketStreamTest::setUp()
 {
@@ -137,6 +198,7 @@ CppUnit::Test* SocketStreamTest::suite()
 	CppUnit_addTest(pSuite, SocketStreamTest, testStreamEcho);
 	CppUnit_addTest(pSuite, SocketStreamTest, testLargeStreamEcho);
 	CppUnit_addTest(pSuite, SocketStreamTest, testEOF);
+	CppUnit_addTest(pSuite, SocketStreamTest, testSendFile);
 
 	return pSuite;
 }

Net/testsuite/src/SocketStreamTest.h

@@ -27,6 +27,7 @@ public:
 	void testStreamEcho();
 	void testLargeStreamEcho();
 	void testEOF();
+	void testSendFile();
 
 	void setUp();
 	void tearDown();

NetSSL_OpenSSL/NetSSL_OpenSSL.progen

@@ -13,7 +13,7 @@ vc.project.compiler.defines.shared = NetSSL_EXPORTS
 vc.project.compiler.defines.debug_shared = ${vc.project.compiler.defines.shared}
 vc.project.compiler.defines.release_shared = ${vc.project.compiler.defines.shared}
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md = Crypt32.lib

NetSSL_OpenSSL/samples/HTTPSTimeServer/HTTPSTimeServer.progen

@@ -8,7 +8,7 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include;..\\..\\..\\NetSSL_OpenSSL\\include;..\\..\\..\\Crypto\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md = Crypt32.lib

NetSSL_OpenSSL/samples/Mail/Mail.progen

@@ -8,7 +8,7 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include;..\\..\\..\\NetSSL_OpenSSL\\include;..\\..\\..\\Crypto\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md = Crypt32.lib

NetSSL_OpenSSL/samples/SetSourceIP/SetSourceIP.progen

@@ -8,7 +8,7 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include;..\\..\\..\\NetSSL_OpenSSL\\include;..\\..\\..\\Crypto\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md = Crypt32.lib

NetSSL_OpenSSL/samples/TwitterClient/TwitterClient.progen

@@ -8,7 +8,7 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\JSON\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include;..\\..\\..\\NetSSL_OpenSSL\\include;..\\..\\..\\Crypto\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md = Crypt32.lib

NetSSL_OpenSSL/samples/download/download.progen

@@ -8,7 +8,7 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include;..\\..\\..\\NetSSL_OpenSSL\\include;..\\..\\..\\Crypto\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md = Crypt32.lib

NetSSL_OpenSSL/testsuite/TestSuite.progen

@@ -8,7 +8,7 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = TestSuite_vs90.vcproj
 vc.project.compiler.include = ..\\..\\Foundation\\include;..\\..\\XML\\include;..\\..\\Util\\include;..\\..\\Net\\include;..\\..\\Crypto\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md = Crypt32.lib

NetSSL_Win/NetSSL_Win.progen

@@ -13,7 +13,7 @@ vc.project.compiler.defines.shared = ${vc.project.name}_EXPORTS
 vc.project.compiler.defines.debug_shared = ${vc.project.compiler.defines.shared}
 vc.project.compiler.defines.release_shared = ${vc.project.compiler.defines.shared}
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib Crypt32.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib Crypt32.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md =

NetSSL_Win/samples/HTTPSTimeServer/HTTPSTimeServer.progen

@@ -8,7 +8,7 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include;..\\..\\..\\NetSSL_Win\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md = Crypt32.lib

NetSSL_Win/samples/Mail/Mail.progen

@@ -8,7 +8,7 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include;..\\..\\..\\NetSSL_Win\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md = Crypt32.lib

NetSSL_Win/samples/download/download.progen

@@ -8,7 +8,7 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include;..\\..\\..\\NetSSL_Win\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md = Crypt32.lib

NetSSL_Win/testsuite/TestSuite.progen

@@ -8,7 +8,7 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = TestSuite_vs90.vcproj
 vc.project.compiler.include = ..\\..\\Foundation\\include;..\\..\\XML\\include;..\\..\\Util\\include;..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.project.linker.dependencies.debug_shared =
 vc.project.linker.dependencies.release_shared =
 vc.project.linker.dependencies.debug_static_md = Crypt32.lib

PDF/testsuite/TestSuite.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = TestSuite_vs90.vcproj
 vc.project.compiler.include = ..\\..\\Foundation\\include;..\\..\\XML\\include;..\\..\\Util\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies = iphlpapi.lib
+vc.project.linker.dependencies = iphlpapi.lib mswsock.lib

PageCompiler/File2Page/File2Page.progen

@@ -13,5 +13,5 @@ vc.project.compiler.defines.shared =
 vc.project.compiler.defines.debug_shared = ${vc.project.compiler.defines.shared}
 vc.project.compiler.defines.release_shared = ${vc.project.compiler.defines.shared}
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.solution.create = true

PageCompiler/PageCompiler.progen

@@ -13,5 +13,5 @@ vc.project.compiler.defines.shared =
 vc.project.compiler.defines.debug_shared = ${vc.project.compiler.defines.shared}
 vc.project.compiler.defines.release_shared = ${vc.project.compiler.defines.shared}
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.solution.create = true

PageCompiler/samples/HTTPTimeServer/HTTPTimeServer.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include;..\\..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

PocoDoc/PocoDoc.progen

@@ -13,5 +13,5 @@ vc.project.compiler.defines.shared =
 vc.project.compiler.defines.debug_shared = ${vc.project.compiler.defines.shared}
 vc.project.compiler.defines.release_shared = ${vc.project.compiler.defines.shared}
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.solution.create = true

ProGen/ProGen.progen

@@ -13,5 +13,5 @@ vc.project.compiler.defines.shared =
 vc.project.compiler.defines.debug_shared = ${vc.project.compiler.defines.shared}
 vc.project.compiler.defines.release_shared = ${vc.project.compiler.defines.shared}
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies = ws2_32.lib iphlpapi.lib mswsock.lib
 vc.solution.create = true

Prometheus/samples/MetricsSample/MetricsSample.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\Util\\include;..\\..\\..\\XML\\include;..\\..\\..\\JSON\\include;..\\..\\..\\Net\\include;..\\..\\..\\Prometheus\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Redis/testsuite/TestSuite.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = TestSuite_vs90.vcproj
 vc.project.compiler.include = ..\\..\\Foundation\\include;..\\..\\Net\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Util/samples/SampleApp/SampleApp.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Util/samples/SampleServer/SampleServer.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Util/samples/pkill/pkill.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include;..\\..\\..\\Util\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

Util/testsuite/TestSuite.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = TestSuite_vs90.vcproj
 vc.project.compiler.include = ..\\..\\Foundation\\include;..\\..\\XML\\include;..\\..\\JSON\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = iphlpapi.lib
+vc.project.linker.dependencies.Win32 = iphlpapi.lib mswsock.lib

XML/samples/DOMParser/DOMParser.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

XML/samples/DOMWriter/DOMWriter.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

XML/samples/PrettyPrint/PrettyPrint.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib

XML/samples/SAXParser/SAXParser.progen

@@ -8,4 +8,4 @@ vc.project.configurations = debug_shared, release_shared, debug_static_mt, relea
 vc.project.prototype = ${vc.project.name}_vs90.vcproj
 vc.project.compiler.include = ..\\..\\..\\Foundation\\include;..\\..\\..\\XML\\include
 vc.project.compiler.additionalOptions = /Zc:__cplusplus /std:c++17
-vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib
+vc.project.linker.dependencies.Win32 = ws2_32.lib iphlpapi.lib mswsock.lib