network programming in c language pdf

... datalen) close(connfd) connect(fd, ., .) write(fd, data, datalen) read(fd, buffer, buflen) close(fd) int fd = socket( .) Socket fd Socket fd connfd ? TCP/IP Connection 8 TCP/IP Connection fd = socket(…); ... for TCP SOCK_DGRAM for UDP 0 (not used for Internet sockets) Create an unbound socket, not connected to network; can be used as either a client or a server #include <sys/types.h> #include ... represents the connection using a file descriptor 7 bind(fd, ., .) Network Client int fd = socket( .) Server ? listen(fd, .) connfd = accept(fd, .) read(connfd, buffer, buflen) write(connfd, data,

Ngày tải lên: 05/09/2013, 09:57

... AddressLists collection in the MAPI namespace ( NS in the example above). Each element in the collection contains an AddressEntries collection. Each entry in the latter collection contains a Name ... application programming interface Microsoft Outlook provides an interface to applications to access emails stored within its message store. This interface is called the mail application programming ... following command should be used in preference to the SenderName property: Msg.Recipients(1).Address Figure 5.6 MAPI client application. 156 5.6 Mail application programming interface 5.6.1 Accessing

Ngày tải lên: 12/08/2014, 21:20

... could then be modified from code by accessing the tbText object. In classic ASP, the only way to achieve such an effect would be to include code within the textbox declaration, such as <input ... requiring them to take a crash course in HTML Internet Explorer can run in a special design mode, which is acceptable as a WYSIWYG editor The trick to accessing design mode in Internet Explorer ... the posting method. Every Web scripting language handles posted data in much the same way, so the technique is applicable to interfacing with any Web form. Web scripting languages share a common

Ngày tải lên: 12/08/2014, 21:20

... secure than plain text. The second section describes asymmetric encryption, which is most applicable for securing data in transit. The chapter concludes with a discussion on sym- metric encryption, ... RSACryptoServiceProvider RSA; public string PublicKey; public string PrivateKey; public byte[] Encrypt(byte[] Data, string PublicKeyIn) { RSA.FromXmlString(PublicKeyIn); return RSA.Encrypt(Data, ... RSACryptoServiceProvider Public PublicKey As String Public PrivateKey As String Public function Encrypt(Data as byte(),PublicKeyIn as _ string) as Byte() RSA.FromXmlString(PublicKeyIn)

Ngày tải lên: 12/08/2014, 21:20

... thus: C# public class WebProxy { public Socket clientSocket; public Form1 UserInterface; } VB.NET Public Class WebProxy Public clientSocket As Socket Public UserInterface As Form1 End Class ... readIn = new byte[1024]; int bytes = clientSocket.Receive(readIn); string clientmessage = Encoding.ASCII.GetString(readIn); clientmessage = clientmessage.Substring(0,bytes); int posHost = clientmessage.IndexOf("Host:"); ... through an RS232 connection (briefly described in Chapter 4) or by using HTTP. Each computer can periodically connect to the router and set up port forwarding so that incoming requests come to it rather

Ngày tải lên: 12/08/2014, 21:20

... Listening for incoming phone calls 391 C# public delegate int LineCallBackDelegate(int dwDevice, int dwMessage, int dwInstance, int dwParam1, int dwParam2, int dwParam3); public static int LineCallBack(int ... = 0x2; const short LINEMEDIAMODE_AUTOMATEDVOICE = 0x8; const int LINE_LINEDEVSTATE = 8; const int LINE_CALLSTATE = 2; const int LINECALLSTATE_OFFERING = 0x2; const int LINECALLSTATE_ACCEPTED... ... public int dwUsedSize; public int dwProviderInfoSize; public int dwProviderInfoOffset; public int dwSwitchInfoSize; public int dwSwitchInfoOffset; public int dwPermanentLineID; public int dwLineNameSize;

Ngày tải lên: 12/08/2014, 21:20

... [...]... compliance C+ + network programming code was concerned mainly with interfacing directly into wsock32.dll, which luckily C# or VB.NET programmers are not obliged to do 16.8 IPv6 routing ... add-on from Microsoft.com 2 Click Start→Settings Network and Dial-up Connections 3 Right-click on your Ethernet card and click Properties 4 Click Install 5 In the Select Network Component ... Type box, click Protocol and then click Add 6 In the Select Network Protocol box,... named Prefix in the Windows XP routing table The network interface for each prefix contains an index

Ngày tải lên: 12/08/2014, 21:20

... Public Interface IIDGenerator Public Function NextOrder() As int End Interface Using shared interfaces is not the only way to provide clients with access to remote objects The two main drawbacks... ... System.Runtime.Remoting.Channels System.Runtime.Remoting.Channels.Http RemoteObject Create a new Windows forms project in Visual Studio NET Click → Project→Add References, click Browse, and then click on ... DLL created in. .. can instruct the server to create an object and to keep it in memory for a specified time before destroying it Client-side activation occurs when the object is created using

Ngày tải lên: 12/08/2014, 21:20

... Rcode; } VB.NET Public Function describeResponse(ByRef code As Integer) _ As String 320 12.3 Ping Dim Rcode As String Select Case code Case 0 : Rcode = "Success" Case 11001 : Rcode ... your company network again! 13 Analyzing Network Packets 13.1 Introduction Network programming is very much concerned with moving... Instrumentation, is used within a Windows intranet ... public string describeResponse(uint code) { string Rcode = ""; switch(code) { case 0 : Rcode = "Success";break; case 11001 : Rcode = "Buffer too Small";break; case

Ngày tải lên: 12/08/2014, 21:20

... Massachusetts Institute of Technology Department of Electrical Engineering and Computer Science 6.087: Practical Programming in C IAP 2010 Problem Set 3 – Solutions Control flow. Functions. ... this code (using gcc). Let’s call the desired output program dictionary.o. Answer: gcc -g -O0 -Wall main .c dict .c -o dictionary.o. Note that the order of main .c and dict .c is ... main .c: dict .c: dict.h: #include <stdio.h> #include "dict.h" /* data structure #include <stdlib.h> for the dictionary */ #include "dict.h" /*

Ngày tải lên: 25/04/2013, 08:07

... ZAM Page ❑ Seasoned pro (C+ +) #include using using #include using std::cout; std::endl; std::string; int main(int argc, char *argv[]) { string str = "Hello World"; cout ... ix Programming in C+ + ✰✰✰ Introduction ✰✰✰ Dr Bernd Mohr b.mohr@fz-juelich.de Forschungszentrum Jülich Germany Programming in C+ +  Dr Bernd Mohr, FZ Jülich, ZAM Introduction Page Hello ... Professional (C) #include or perl -e ’print "Hello World\n"’ int main (int argc, char *argv[]) { printf ("Hello World\n"); return 0; } Programming in C+ +  Dr Bernd Mohr, FZ Jülich, ZAM Page

Ngày tải lên: 13/12/2013, 08:15

... connection, the callback routine is called and you can accept the connection by calling EndAccept. The EndAccept returns a socket object which represents the incoming connection. Here is the code ... m_socListener.Listen (4); // create the call back for any client connections m_socListener.BeginAccept(new AsyncCallback ( OnClientConnect ),null); cmdListen.Enabled = false; } catch(SocketException se) ... follows: public class CSocketPacket { public System.Net.Sockets.Socket thisSocket; public byte[] dataBuffer = new byte[1024]; } and call BeginReceive as follows: CSocketPacket theSocPkt = new CSocketPacket

Ngày tải lên: 18/01/2014, 08:20

... Socket Programming in C/ C++ sockets TCP UDP Socket characteristics (cont’d) Each socket type has one or more protocols. Ex:  TCP/IP (virtual circuits)  UDP (datagram) Use of sockets:  Connection–based ... sockets bind listen accept close send/recv shutdown close socket connect send/recv shutdown close server client socket c Mani Radhakrishnan and Jon Solworth Socket Programming in C/ C++ sockets TCP UDP socket ... back to the accept to wait for another connection request c Mani Radhakrishnan and Jon Solworth Socket Programming in C/ C++ sockets TCP UDP... Socket Programming in C/ C++ sockets

Ngày tải lên: 15/03/2014, 17:20

... contain much code: using using using using using using using using using using using using System; System.Collections.Generic; System.Linq; System.Net; System .Windows; System .Windows. Controls; ... of conductors underneath the screen surface detects the change in capacitance caused by the presence of a finger on the surface. The touch screen hardware then works out where on the screen ... comparable between processors. The processor in the Windows PC might take five clock ticks to do something that the Windows Phone processor needs ten ticks to perform. The Windows PC processor might

Ngày tải lên: 17/03/2014, 13:20

... an Echo Server 156 7.3 Creating a Transmission Control Protocol (TCP) Connection 157 Reading a Web Page 157 7.4 Connecting to a Data Source 163 Using the WebClient class 163 7.5 Using LINQ ... Application Switching 210 The Windows Phone Application LifeCycle 211 Fast Application Switching in an application 213 Fast Application Switching and Development 218 Fast Application Switching and ... Windows Phone  10 Windows Phone Gyroscope A mechanical gyroscope is a device that always points in a particular direction The Windows Phone contains an electronic version which

Ngày tải lên: 23/03/2014, 22:21

... <sys/socket.h> #include <netinet /in. h> #include <arpa/inet.h> #define MYPORT 3490 main() { int sockfd; struct sockaddr _in my_addr; sockfd = socket(AF_INET, SOCK_STREAM, 0); // do some error checking! my_addr.sin_family ... to Network Programming Using Internet Sockets 12 Here is the synopsis for the bind() system call: #include <sys/types.h> #include <sys/socket.h> int bind(int sockfd, struct sockaddr ... local struct sockaddr _in. This is where the information about the incoming connection will go (and with it you can determine which host is calling you from which port). addrlen is a local integer...

Ngày tải lên: 19/03/2014, 13:41

... minimum field width to n Returns the fill character used Sets the fill character to ch int width() const; int width(int n); int fill() const; int fill(int ch); Manipulator Effects Sets the minimum ... Declaration of cin, cout #include <iomanip> // For manipulators being called // with arguments. #include <string> using namespace std; int main() { int number = ' '; cout ... generates octal, decimal, and hexadecimal output. #include <iostream> // Declarations of cin, cout and using namespace std; // manipulators oct, hex, int main() { int number; cout <<...

Ngày tải lên: 06/07/2014, 17:21

... left curved bracket indicates the start of a function block, which contains the state- ments defining what the function does. ᮀ Prototype and Definition In a function definition the function ... compiler/linker settings for program com- pilation. DEFINING FUNCTIONS ■ 175 The following section describes how to program global functions. Chapter 13, Defining Classes, describes the steps for defining member ... of inheritance to create specialized classes without needing to change any existing classes. When implementing a class you must define the capacities of those objects, that is, the member functions,...

Ngày tải lên: 06/07/2014, 17:21

... manipulates a local copy. Thus, only a local copy of the string is changed in the function, but the string in the calling function remains unchanged. Exercise 2 // // circle.cpp // Defines and calls the ... Defines and calls the function circle(). // #include <iostream> #include <iomanip> #include <string> using namespace std; // Prototype of circle(): void circle( const double& ... function strToUpper() is declared as a string& instead of a string? Exercise 2 Write a void type function called circle()to calculate the circumference and area of a circle.The radius and two...

Ngày tải lên: 06/07/2014, 17:21