'Sin addr' presentation slideshows

CPSC 781

CPSC 781. Ubiquitous Computing. #include <stdio.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #define PORT 12997 /* The port number of the server */ main() { int main_sock, new_sock, count; struct sockaddr_in server; /* Create a socket */

733 views • 73 slides

Introduction to Socket Programming

Introduction to Socket Programming. Yen-Nien Wu CSIE, NTU. Outline. Background What is a socket? TCP vs. UDP Byte Ordering Socket I/O TCP/UDP Client and Server I/O multiplexing HW 1 Web Proxy. Server and Client.

1.34k views • 50 slides

?????? - Socket ????

?????? - Socket ????. ??? cyt@pmlab.iecs.fcu.edu.tw. ??. TCP/IP ???? ??? Socket Socket API ??? Socket ??????? ?? Socket API. TCP / IP ?? ??. FTP , SMTP , Telnet , DNS , SNMP. What is TCP / IP Transmission Control Protocol / Internet Protocol. TCP , UDP. ???. Application.

690 views • 47 slides

Network Programming

Network Programming. UNIX Internet Socket API. Everything in Unix is a File. When Unix programs do any sort of I/O, they do it by reading or writing to a file descriptor. A file descriptor is simply an integer associated with an open file. The file can be: Network connection. Pipes.

568 views • 47 slides

Network Programming

Network Programming. UNIX Internet Socket API. Everything in Unix is a File. When Unix programs do any sort of I/O, they do it by reading or writing to a file descriptor. A file descriptor is simply an integer associated with an open file. The file can be: Network connection. Pipes.

518 views • 43 slides

Broadcasting and UDP

Broadcasting and UDP. Network Lab. ? ? ?. ? ?. Broadcast UDP ?? ?? ??? ???? broadcast message ??? ??? ???? broadcast message ??. Ethernet Interface ? ?? broadcast address. Broadcast Address. ifconfig eth0. # ifconfig eth0 eth0 Link encap:Ehternet Hwaddr 00:A0:4B:06:F4:8D

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Socket Programming Part 1

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Introduction to Socket Programming with C

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Socket Programming

Socket Programming. Berkeley Sockets & WinSock 2. http://www.ecst.csuchico.edu/~beej/guide/net/. Introductie . Wat is een socket ? Een manier om 2 processen met elkaar te laten communiceren Unix & linux : Berkeley sockets Windows : Winsock (1 en 2) 2 Types Stream sockets

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CS241 System Programming

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Communication Networks

Communication Networks. Recitation 1. Administrative. Nir Andelman Open Space, (640)7438 Email: andelman@cs.tau.ac.il website: http://www.cs.tau.ac.il/~andelmni/courses/comnet05/netcom.html Grader: TBD. TCP/IP Socket Programming. What is a socket?.

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Socket Programming

Socket Programming. Lab 1. Berkeley Unix IPC. socket --an interprocess communication endpoint supporting operations similar to those supported by files opened with the open system call. Creating a socket. int s = socket (domain, type, protocol);

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Introduction

Introduction. A Simple Daytime Client A Simple Daytime Server Error handling: wrapper functions Types of Networking APIs BSD networking history Discover details of your local network. A Simple Daytime Client. Create TCP socket: get a file descriptor

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Socket Programming

Socket Programming. Tutorial. Michael Kounavis Dept. of Electrical Engineering Columbia University http://comet.columbia.edu/~mk mk@comet.columbia.edu. 15 September, 1998. What are Sockets? - Communication abstractions - Support the TCP/IP protocol stack

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CS 471/571

CS 471/571. Sockets 5. Create a UDP Socket ( C ). int sockfd = socket(AF_INET, SOCK_DGRAM, 0); sockfd is called a socket descriptor There is no address associated with the descriptor at this point The 0 parameter represents a protocol option. Rarely used. Create a sockaddr_in struct ( C ).

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Advanced UNIX programming

Advanced UNIX programming. Fall 2002 Instructor: Ashok Srinivasan Lecture 17. Acknowledgements: The syllabus and power point presentations are modified versions of those by T. Baker and X. Yuan. Announcements. Reading assignment Chapters 3 and 4 of UNP Collect midterm from me

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read() recv()

Server (connection-oriented protocol). socket(). bind(). listen(). accept(). Client. blocks until connection from client. socket(). connection establishment. connect(). data (request). read() recv(). write() send(). process request. data (reply). write() send().

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??????????

??????????. ???? http://okaweb.ec.kyushu-u.ac.jp/lectures/in-ng/. UDP ??????? ( ??????? ). include <stdio.h> #include <strings.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> main(narg,arg) int narg; char **arg; { int sock; int s_addr;

175 views • 4 slides