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<strong>Socket</strong> Exceptions■ The example program takes three command-linearguments:■ a host to which it will connect,■ a port number or name on the server,■ a file to request from the server.■ Try it out.■ The program will connect to the server, send a simple HTTPrequest for the given filename, and display the result !Try it out !HTTP/1.1 405 Method Not AllowedAllow: GET, HEAD, OPTIONS, TRACEContent-Type: text/htmlServer: Microsoft-IIS/7.5X-Powered-By: ASP.NETDate: Tue, 18 Sep 2012 06:35:40 GMTConnection: closeContent-Length: 1293
Source Codeimport socket, syshost = ?textport = ?filename = ?try:s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)except socket.error, e:print "Strange error creating socket: %s" % esys.exit(1)# Try parsing it as a numeric port number.try:port = int(textport)except ValueError:# That didn't work, so it's probably a protocol name.# Look it up instead,try:port = socket.getservbyname(textport, 'tcp')except socket.error, e:print "Couldn't find your port: %s" % esys.exit(1)Explain !
Page 1 and 2: Pemrograman JaringanNetwork ClientP
Page 3 and 4: Course Contents1Understanding Socke
Page 5 and 6: LayersApplicationTransportHTTPFTPSM
Page 7 and 8: System Calls● open()● read()●
Page 9 and 10: Source Codeimport socketprint "Crea
Page 15: Handling Errors■ There are so man
Page 19 and 20: Socket Exceptions (Python)■ Pytho
Page 21 and 22: Errors with File-like Objects■ it
Page 23 and 24: Using User Datagram Protocol■ Cre
Page 25 and 26: Summary■ When communicating over

Socket

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