intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 295 insertions, 0 deletions

diff --git a/contrib/libs/poco/Net/src/DialogSocket.cpp b/contrib/libs/poco/Net/src/DialogSocket.cpp
new file mode 100644
index 0000000000..030280c6c3
--- /dev/null
+++ b/contrib/libs/poco/Net/src/DialogSocket.cpp
@@ -0,0 +1,295 @@
+//
+// DialogSocket.cpp
+//
+// Library: Net
+// Package: Sockets
+// Module:  DialogSocket
+//
+// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#include "Poco/Net/DialogSocket.h"
+#include "Poco/Exception.h"
+#include "Poco/Ascii.h"
+#include <cstring>
+
+
+namespace Poco {
+namespace Net {
+
+
+DialogSocket::DialogSocket():
+	_pBuffer(0),
+	_pNext(0),
+	_pEnd(0)
+{
+	allocBuffer();
+}
+
+
+DialogSocket::DialogSocket(const SocketAddress& address):
+	StreamSocket(address),
+	_pBuffer(0),
+	_pNext(0),
+	_pEnd(0)
+{
+	allocBuffer();
+}
+
+
+DialogSocket::DialogSocket(const Socket& socket):
+	StreamSocket(socket),
+	_pBuffer(0),
+	_pNext(0),
+	_pEnd(0)
+{
+	allocBuffer();
+}
+
+
+DialogSocket::DialogSocket(const DialogSocket& socket):
+	StreamSocket(socket),
+	_pBuffer(0),
+	_pNext(0),
+	_pEnd(0)
+{
+	allocBuffer();
+}
+
+
+DialogSocket::~DialogSocket()
+{
+	delete [] _pBuffer;
+}
+
+
+DialogSocket& DialogSocket::operator = (const Socket& socket)
+{
+	StreamSocket::operator = (socket);
+	_pNext   = _pBuffer;
+	_pEnd    = _pBuffer;
+	return *this;
+}
+
+
+DialogSocket& DialogSocket::operator = (const DialogSocket& socket)
+{
+	StreamSocket::operator = (socket);
+	_pNext   = _pBuffer;
+	_pEnd    = _pBuffer;
+	return *this;
+}
+
+
+void DialogSocket::sendByte(unsigned char ch)
+{
+	sendBytes(&ch, 1);
+}
+
+
+void DialogSocket::sendString(const char* str)
+{
+	sendBytes(str, (int) std::strlen(str));
+}
+
+
+void DialogSocket::sendString(const std::string& str)
+{
+	sendBytes(str.data(), (int) str.length());
+}
+
+
+void DialogSocket::sendMessage(const std::string& message)
+{
+	std::string line;
+	line.reserve(message.length() + 2);
+	line.append(message);
+	line.append("\r\n");
+	sendString(line);
+}
+
+
+void DialogSocket::sendMessage(const std::string& message, const std::string& arg)
+{
+	std::string line;
+	line.reserve(message.length() + arg.length() + 3);
+	line.append(message);
+	if (!arg.empty())
+	{
+		line.append(" ");
+		line.append(arg);
+	}
+	line.append("\r\n");
+	sendString(line);
+}
+
+
+void DialogSocket::sendMessage(const std::string& message, const std::string& arg1, const std::string& arg2)
+{
+	std::string line;
+	line.reserve(message.length() + arg1.length() +arg2.length() + 4);
+	line.append(message);
+	line.append(" ");
+	line.append(arg1);
+	if (!arg2.empty())
+	{
+		line.append(" ");
+		line.append(arg2);
+	}
+	line.append("\r\n");
+	sendString(line);
+}
+
+
+bool DialogSocket::receiveMessage(std::string& message)
+{
+	message.clear();
+	return receiveLine(message, MAX_LINE_LENGTH);
+}
+
+
+int DialogSocket::receiveStatusMessage(std::string& message)
+{
+	message.clear();
+	int status = receiveStatusLine(message, MAX_LINE_LENGTH);
+	if (status < 0)
+	{
+		while (status <= 0)
+		{
+			message += '\n';
+			status = receiveStatusLine(message, message.length() + MAX_LINE_LENGTH);
+		}
+	}
+	return status;
+}
+
+
+int DialogSocket::get()
+{
+	refill();
+	if (_pNext != _pEnd)
+		return std::char_traits<char>::to_int_type(*_pNext++);
+	else
+		return EOF_CHAR;
+}
+
+
+int DialogSocket::peek()
+{
+	refill();
+	if (_pNext != _pEnd)
+		return std::char_traits<char>::to_int_type(*_pNext);
+	else
+		return EOF_CHAR;
+}
+
+
+void DialogSocket::synch()
+{
+	sendUrgent(TELNET_DM);
+}
+
+
+void DialogSocket::sendTelnetCommand(unsigned char command)
+{
+	unsigned char buffer[2];
+	buffer[0] = TELNET_IAC;
+	buffer[1] = command;
+	sendBytes(buffer, 2);
+}
+
+
+void DialogSocket::sendTelnetCommand(unsigned char command, unsigned char arg)
+{
+	unsigned char buffer[3];
+	buffer[0] = TELNET_IAC;
+	buffer[1] = command;
+	buffer[2] = arg;
+	sendBytes(buffer, 3);
+}
+
+
+void DialogSocket::refill()
+{
+	if (_pNext == _pEnd)
+	{
+		int n = receiveBytes(_pBuffer, RECEIVE_BUFFER_SIZE);
+		if (n > 0)
+		{
+			_pNext = _pBuffer;
+			_pEnd  = _pBuffer + n;
+		}
+	}
+}
+
+
+void DialogSocket::allocBuffer()
+{
+	_pBuffer = new char [RECEIVE_BUFFER_SIZE];
+	_pNext   = _pBuffer;
+	_pEnd    = _pBuffer;
+}
+
+
+bool DialogSocket::receiveLine(std::string& line, std::size_t lineLengthLimit)
+{
+	// An old wisdom goes: be strict in what you emit
+	// and generous in what you accept.
+	int ch = get();
+	while (ch != EOF_CHAR && ch != '\r' && ch != '\n')
+	{
+		if (lineLengthLimit == 0 || line.size() < lineLengthLimit)
+			line += (char) ch;
+		else
+			throw Poco::IOException("Line too long");
+		ch = get();
+	}
+	if (ch == '\r' && peek() == '\n')
+		get();
+	else if (ch == EOF_CHAR)
+		return false;
+	return true;
+}
+
+
+int DialogSocket::receiveStatusLine(std::string& line, std::size_t lineLengthLimit)
+{
+	int status = 0;
+	int ch = get();
+	if (ch != EOF_CHAR) line += (char) ch;
+	int n = 0;
+	while (Poco::Ascii::isDigit(ch) && n < 3)
+	{
+		status *= 10;
+		status += ch - '0';
+		++n;
+		ch = get();
+		if (ch != EOF_CHAR) line += (char) ch;
+	}
+	if (n == 3)
+	{
+		if (ch == '-')
+			status = -status;
+	}
+	else status = 0;
+	if (ch != EOF_CHAR) receiveLine(line, lineLengthLimit);
+	return status;
+}
+
+
+int DialogSocket::receiveRawBytes(void* buffer, int length)
+{
+	refill();
+	int n = static_cast<int>(_pEnd - _pNext);
+	if (n > length) n = length;
+	std::memcpy(buffer, _pNext, n);
+	_pNext += n;
+	return n;
+}
+
+
+} } // namespace Poco::Net