00001 /********************************************************************
00002 Description: Class for network functions
00003 part of the 3Dsia project
00004 created: StonedBones, 31.1.2000
00005
00006 History:
00007 date, name, changes, in funtion
00008 180300 StonedBones cleaned source
00009 310100 StonedBones created source
00010
00011 ********************************************************************/
00012
00013 #include "network.h"
00014
00015 #include <string>
00016 #include <unistd.h>
00017
00018 #include "../common/options.h"
00019 #include "../common/intToChar.h"
00020 #include "frontEnd.h"
00021
00022 /*...................................................................
00023 Description: Constructor
00024 Args: <none>
00025 Returns: <none>
00026 Created: StonedBones, 31.1.2000
00027 [ToDo:]
00028 [Comments:]
00029 - based on old 3Dsia code by Xandi
00030 Changes:
00031 - 18.03.2000 StonedBones replaced char* -> string
00032 -------------------------------------------------------------------*/
00033
00034 Network::Network () {
00035 extern FrontEnd* frontEnd;
00036
00037 string msg;
00038
00039 frontEnd->displayDebugMessage ("Opening TCP/IP socket");
00040
00041 if ((sock = socket (PF_INET, SOCK_STREAM, 0)) < 0) {
00042 frontEnd->displayDebugMessage ("Error: Can't open TCP/IP socket !");
00043 exit (1);
00044 };
00045
00046 int i = 1;
00047 setsockopt (sock, SOL_SOCKET, SO_REUSEADDR, &i, sizeof (i));
00048
00049 address.sin_family = AF_INET;
00050 address.sin_port = htons (DEFAULT_PORT);
00051
00052 memset (&address.sin_addr, 0, sizeof (address.sin_addr));
00053
00054 msg = "Binding TCP/IP socket to port ";
00055 msg += intToChar (DEFAULT_PORT);
00056 frontEnd->displayDebugMessage (msg.c_str ());
00057
00058 if (bind (sock, (struct sockaddr*) &address, sizeof (address))) {
00059 frontEnd->displayDebugMessage ("Error: Can't bind TCP/IP socket !");
00060 exit (1);
00061 };
00062
00063 frontEnd->displayDebugMessage ("Listening for connections");
00064
00065 if (listen (sock, 5)) {
00066 frontEnd->displayDebugMessage ("Error: Can't listen to socket !");
00067 exit (1);
00068 };
00069 };
00070
00071 /*...................................................................
00072 Description: Destructor
00073 Args: <none>
00074 Returns: <none>
00075 Created: StonedBones, 31.1.2000
00076 [ToDo:]
00077 - close all open connections
00078 [Comments:]
00079 Changes:
00080 -------------------------------------------------------------------*/
00081
00082 Network::~Network () {
00083 };
00084
00085 /*...................................................................
00086 Description: waits until a client connects
00087 Args: <none>
00088 Returns: socket number of new client
00089 Created: StonedBones, 31.1.2000
00090 [ToDo:]
00091 [Comments:]
00092 - based on old 3Dsia code by Xandi
00093 Changes:
00094 -------------------------------------------------------------------*/
00095
00096 int Network::waitForConnection () {
00097 extern FrontEnd* frontEnd;
00098
00099 fd_set checkIt;
00100 int clientSock = 0;
00101
00102 FD_ZERO (&checkIt);
00103 FD_SET (sock, &checkIt);
00104
00105 if (select (70, &checkIt, 0, 0, NULL) < 0) {
00106 frontEnd->displayDebugMessage ("Error in Network::waitForConnection: select !");
00107 exit (1);
00108 };
00109
00110 if (FD_ISSET (sock, &checkIt)) {
00111 if ((clientSock = accept (sock, (struct sockaddr*) &address, (socklen_t*) sizeof (address))) < 0) {
00112 frontEnd->displayDebugMessage ("Error in Network::waitForConnection: accept !");
00113 exit (1);
00114 };
00115 } else {
00116 frontEnd->displayDebugMessage ("Error in Network::waitForConnection: FD_ISSET !");
00117 exit (1);
00118 };
00119
00120 return clientSock;
00121 };
