Sample SourceCode....

Author

122

August 12, 2002 12:06 PM

Hello again, Does anyone have some sample Winsock Win32 source code for a Chat server and a Chat client...or any references to help me create one. I''ve done it in dos (console), but win32...hehe, such a pain in the arse, but sooo worth it. Thanks for any helpfull suggestions.

"There are no such things as stupid questions...Just stupid people :)"-Me

kindfluffysteve

100

August 12, 2002 05:31 PM

http://code.jakobbieling.de/

with CNetworking I wrote this program

----------------------
multi-user chat server
----------------------
main.cpp
//steve dobbs is brill
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include "CConnection.h"
#include "ChatServer.h"

int main(){
char key;
ChatServer chat(50,7778); //maximun of 50 clients, ;istening on port 7778

while(key!=''q''){
if(kbhit()) key=getch();
chat.ServerUpdate();
}
return 0;
}

---------------------
ChatServer.h
#define BUFFSIZE 150

#ifndef NETCONST
#include "netconst.h"
#define NETCONST
#endif

#define CHATSERVER

//______________________________________

class conDat{
public:
void clear_rcv(){
for(int i=0;i receive=NULL;
}
rp=0;
}
void clear_snd(){
for(int i=0;i receive=NULL; } sp=0; } char *receive; int rcv_buffersize,snd_buffersize,rp,sp,flag; char *send; }; //___________________________________________________________________________________ //steve dobbs is super class ChatServer{ public: ChatServer(int ncl,int port); //number of clients, port ~ChatServer(); void ServerUpdate(); void BcastExcluding(int clientID,char *buff,int size); private: conDat *clientData; // each client has its data space so processing can be done interleved. CNetworking net; CConnection **client; //and array of pointers to different CConnection classe''s int *flagArray; //0 if element is untaken, 1 if slot is taken int nclients; }; void ChatServer::BcastExcluding(int clientID,char *buff,int size){ for(int i=0;i<nclients;i++){ if((flagArray==1)&&(i!=clientID)){ client->Send(buff,size); } } } ChatServer::ChatServer(int ncl, int port){ nclients=ncl; net.Listen(port); CConnection *c; int i; //CConnection *con; //con=new CConnection[ncl]; void *con; con=malloc(sizeof(void *)); client=(CConnection **)con; clientData=(conDat *)malloc(BUFFSIZE*sizeof(conDat)); flagArray=(int *)malloc(sizeof(int)*nclients); for(i=0;i<nclients;i++){ clientData.receive=(char *)malloc(BUFFSIZE*sizeof(char)); clientData.send=(char *)malloc(BUFFSIZE*sizeof(char)); clientData.rcv_buffersize=BUFFSIZE; clientData.snd_buffersize=BUFFSIZE; clientData.flag=0; clientData.rp=0; clientData.sp=0; flagArray=0;// set array } } void ChatServer::ServerUpdate(){ //must be updated from the main loop int i,sel=-1; if(net.HasAccepted()>0){ // there are connections on dah stack //find a free connection for(i=0;i<nclients;i++){ if(flagArray==0){ sel=i; break; } } //now during this cycle, create a connection/socket if(sel!=-1){ //do the connection thing flagArray[sel]=1; client[sel]=net.GetAccepted(); printf("hohoho, client on slot %d has connected to server\n",i); } } int nbytes=0; char byte; //all active connections now to be updated for(i=0;i<nclients;i++){ if(flagArray==1){ // nbytes=client->HasReceived(); if(nbytes>0){ client->Receive(&byte,1); clientData.receive[clientData.rp]=byte; clientData.rp++; if(byte==NULL){ printf("%s\n",clientData.receive); BcastExcluding(i,clientData.receive,clientData.rp); //that line broadcasts to all clients except current, what is in the receive buffer. //ie the text that was sent to the server by said client. clientData.clear_rcv(); while(client->HasReceived()>0){ byte=client->Receive(&byte,1); //whittle down excess data; } } } } //go look for more active clients } } ChatServer::~ChatServer(){ free(flagArray); net.StopListen(); } ——————————————— netconst.h //wibbily wobbily #define NETCONST #define netstring 0 #define netint 1 #define netfloat 2 #define netdouble 3 #define netbin 4 ——————————————— ______________________________ chat client ______________________________ main.cpp //biggily bop! #include "CConnection.h" #include <stdio.h> #include <conio.h> int main(){ CNetworking net; CConnection con; char temp[500],name[128]="",key=''_''; bool success=net.GetLocalName(name,128); char myip[20] = ""; // storage for one ip ("xxx.xxx.xxx.xxx") success = net.GetLocalIP(myip, 15); char testText[100]="wibbily wobbly biggily bop"; char buff[256]; int i; //—————— int newline=1,p=0; i=0; //—————— char byte,buffrc[256]; int nbytes; printf("enter chatserver IP address >"); scanf("%s",myip); printf("%s\n",myip); if(con.Connect(myip,7778)){ printf("Connection Made :-)\n"); while(key!=27 /*ESC*/){ if(kbhit()) { key=getch(); //con.Send(testText,100); if((key!=13) && (i<256)){ printf("%c",key); newline=0; buff=key; i++; } else{ key=0; buff=NULL; i++; con.Send(buff,i); printf("\n"); i=0; } } //here look for data received /* if(ok==1){ nbytes=c[0]->HasReceived(); if(nbytes>0){ c[0]->Receive(name,1); buff=name[0]; i++; if(name[0]==NULL){ printf("%s\n",buff); i=0; c[0]->Receive(temp,c[0]->HasReceived()); } } */ nbytes=con.HasReceived(); if(nbytes>0){ con.Receive(&byte,1); buffrc[p]=byte;p++; if(byte==NULL){ printf("%s\n",buffrc); p=0; con.Receive(temp,con.HasReceived()); //empty buffer; } } } } else printf("No Connection possible :-(\n"); con.Disconnect(); printf("bye\n"); return 0; } ————————– using visual c++ both are separate projects and in "sources", main.cpp and CConnection.cpp are added. CConnection.cpp CConnection.h from the website above which has good documentation.