socket programming in c code

... 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( …); ... Creating a socket #include <sys /socket. h> int fd; . fd = socket( family, type, protocol); if (fd == -1) { // Error: unable to create socket . } . AF_INET for IPv4 AF_INET6 for IPv6 SOCK_STREAM ... 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

Ngày tải lên: 05/09/2013, 09:57

... 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

... #include #include #include #include #include #include 11 ... demo */ #include #include #include #include #include #include #include #include int main(int argc, char *argv[]) { struct ... inet_aton(const char *cp, struct in_ addr *inp); And here’s a sample usage, while packing a struct sockaddr _in (this example... #include #include #include #include #include #include #include #include ... Internet address (a structure for historical reasons) [...]... demo */ #include #include #include #include #include #include #include #include #include #include #define MYPORT 4950 // the

Ngày tải lên: 19/03/2014, 13:41

... using DNS 144 Networks and Ports 145 Connections and Datagrams 146 7.2 Creating a User Datagram Protocol (UDP) Connection 146 The Socket class 147 Sockets and the SocketAsyncEventArgs class ... 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 to Read from ... 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

Ngày tải lên: 23/03/2014, 22:21

... ❘ CHAPTER 1 A LOOK AT FUNCTIONAL PROGRAMMING HISTORY else tch ++ (calcLine ch (col+1) line maxp) ++ tch calcLines :: Int -> Int -> String calcLines line maxp = let ch = (ord ‘A’) + line in ... www.it-ebooks.info PROFESSIONAL Functional Programming in C# CLASSIC PROGRAMMING TECHNIQUES FOR MODERN PROJECTS Oliver Sturm www.it-ebooks.info Professional Functional Programming in C# : Classic Programming ... maxp line)) (cons ch nil) (cons 46 nil)))) (if (= col maxp) tch (append (append tch (calcLine ch (+ col 1) line maxp)) tch)) ) ) (defun calcLines (line maxp) (let* ((ch (+ line (char-int #\A)))

Ngày tải lên: 28/04/2014, 16:01

... 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: 28/06/2014, 14:20

... 158 Inserting and Erasing in Strings 160 Searching and Replacing in Strings 162 Accessing Characters in Strings 164 Exercises 166 Solutions 168 Chapter 10 Functions 171 Significance of Functions ... Reference Type 228 Defining Pointers 230 The Indirection Operator 232 Pointers as Parameters 234 Exercises 236 Solutions 238 Chapter 13 Defining Classes 243 The Class Concept 244 Defining Classes ... beginning of each chapter. These summaries also provide students with an idea of the key points to look for throughout the chapter. Chapter Exercises Each chapter contains exercises, including programming

Ngày tải lên: 06/07/2014, 17:21

... Containers 749 Container Types 750 Sequences 752 Iterators 754 Declaring Sequences 756 Inserting in Sequences 758 Accessing Objects 760 Length and Capacity 762 Deleting in Sequences 764 List Operations ... Properties Capacities object2 Properties Capacities ■ OBJECT-ORIENTED PROGRAMMING Traditional concept Object-oriented concept OBJECT-ORIENTED PROGRAMMING ■ 5 ᮀ Traditional Procedural Programming In traditional, ... class defines a certain object type by defining both the properties and the capacities of the objects of that type. Objects communicate by sending each other “messages,” which in turn acti- vate

Ngày tải lên: 06/07/2014, 17:21

... The character set defines which code represents a certain character. When displaying characters on screen, the applicable character codes are transmitted and the “receiver,” that is the screen, ... for correctly interpreting the codes. The C+ + language does not stipulate any particular characters set, although in gen- eral a character set that contains the ASCII code (American Standard Code ... Code for Informa- tion Interchange) is used. This 7-bit code contains definitions for 32 control characters (codes 0 – 31) and 96 printable characters (codes 32 – 127). The char (character) type

Ngày tải lên: 06/07/2014, 17:21

... standard escape sequences, their decimal values, and effects. You can use octal and hexadecimal escape sequences to create any character code. Thus, the letter A (decimal 65) in ASCII code can also ... preset accuracy. The following three types are available for calculations involving floating-point numbers: float for simple accuracy double for double accuracy long double for high accuracy The ... To continue a string in the next line you can also use a backslash \ as the last character in a line, and then press the Enter key to begin a new line, where you can continue typing the string.

Ngày tải lên: 06/07/2014, 17:21

... variables #include <iostream> using namespace std; int gVar1; // Global variables, int gVar2 = 2; // explicit initialization int main() { char ch('A'); // Local variable being initialized ... the variable has changed since it was last accessed. The compiler therefore creates machine code to read the value of the variable whenever it is accessed instead of repeatedly using a value that ... some variables tend to be associated with a specific use. EXAMPLES: c, ch for characters i, j, k, l, m, n for integers, in particular indices x, y, z for floating-point numbers To improve the readability

Ngày tải lên: 06/07/2014, 17:21

... declared in standard header files. If the header file is included in the program’s source code by means of the #include directive, the function can be used immediately. Example: #include <cmath> ... self-defined // functions // and classes long myfunc(int); HEADER FILES ■ 47 ᮀ Using Header Files Header files are text files containing declarations and macros. By using an #include directive ... technique. 46 ■ CHAPTER 3 USING FUNCTIONS AND CLASSES ■ HEADER FILES Using header files iostream Header file Copy Copy myheader.h Header file application.cpp Source file // Declaration // of cin,

Ngày tải lên: 06/07/2014, 17:21

... ■ CHAPTER 3 USING FUNCTIONS AND CLASSES // To use strings. #include <iostream> // Declaration of cin, cout #include <string> // Declaration of class string using namespace std; int ... endl; return 0; } Exercise 3 #include <iostream> // Declaration of cin, cout #include <string> // Declaration of class string using namespace std; int main() { string message("I ... defines a string containing the following character sequence: I have learned something new again! and displays the length of the string on screen. Read two lines of text from the keyboard. Concatenate

Ngày tải lên: 06/07/2014, 17:21

... 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 ... 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 ... 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) ...

Ngày tải lên: 18/01/2014, 08:20

... Solworth Socket Programming in C/ C++ sockets TCP UDP TCP-based sockets bind listen accept close send/recv shutdown close socket connect send/recv shutdown close server client socket c Mani Radhakrishnan ... Solworth Socket Programming in C/ C++ sockets Socket Programming in C/ C++ c Mani Radhakrishnan and Jon Solworth September 24, 2004 c Mani Radhakrishnan and Jon Solworth Socket Programming in C/ C++ ... following actions  socket: create the socket  connect: connect to a server  send,recv: (repeated)  shutdown  close c Mani Radhakrishnan and Jon Solworth Socket Programming in C/ C++ sockets Contact...

Ngày tải lên: 15/03/2014, 17:20

... when the object is accessed. c) A static constructor can have public as a accessibility modifiers 74. class A { public static int X = B.Y + 1; } class B { public static int Y = A.X ... explicitly or implicitly. b) Static constructors can have accessibility modifiers. e) Static constructors are called when the class is loaded. c) Static constructors cannot be called ... error. c) Incompatible type for ’=’ can’t convert SubClass to SuperClass. b) No constructor matching SuperClass() found in class SuperClass d) Wrong number of arguments in constructor....

Ngày tải lên: 21/08/2012, 15:55

... implementing an abstract class. [1.0] a) public abstract void class ClassA c) abstract public ClassA b) public abstract class ClassA 105. Which of the following methods can be called ... ("MyDll.MyOName" ) object myObject = System.Activator .C reatInstance (myObjectType) b) By using the System.Reflection. CreateInstance() method to create an instance of object in the following manner. ... following text: In Try In Finally b) The code will compile successfully and output the following text: In Try d) The code will compile successfully and output the following text: In...

Ngày tải lên: 29/08/2012, 16:37

... is called automatically when the object is accessed. c) A static constructor can have public as a accessibility modifiers 74. class A { public static int X = B.Y + 1; } class B { public static ... value c) get b) set d) find 100. public class A:B ,C, D{ } The above code represents ______ [0.5] a) multilevel interface c) multiple interface b) hierarchical interface d) multiple inheritance 101. ... organizations ___ can be used. [1.0] a) Classes c) a namespace b) System namespace d) a nested namespaces 132. The ________namespace contains all code required to interact with the including the console...

Ngày tải lên: 09/04/2013, 09:10

... some basic code profiling to examine the effects of explicitly declaring variables as registers. Consider the fibonacci sequence generating function fibonacci in prob1 .c, which is reproduced at ... to compile your code. Write the command line that you should use to compile this code (using gcc). Let’s call the desired output program dictionary.o. Answer: gcc -g -O0 -Wall main .c dict .c ... Electrical Engineering and Computer Science 6.087: Practical Programming in C IAP 2010 Problem Set 3 – Solutions Control flow. Functions. Variable scope. Static and global variables. I/O: printf...

Ngày tải lên: 25/04/2013, 08:07

... Information http://www.fz-juelich.de/zam/cxx/ ➠ Parallel Programming with C+ + ➠ Forschungszentrum Jülich Local C+ + Information ❑ Official C+ + On-line FAQ http://www.cerfnet.com/~mpcline /C+ +-FAQs-Lite/ Programming in C+ + ... Fortran Boolean (int) boolean logical Character char, wchar_t char character(n) Integer short int integer integer int long int FloatingPoint float real real double Complex ❖ (in C9 9) ❖ complex ❑ Size ... function definitions included in class definitions are automatically inline! ❑ re and im: declared by and belong to calling object (c1 above) ❑ Note: constructor not called for cp! ➠ How about constructors...

Ngày tải lên: 13/12/2013, 08:15