Thread: chat program client server ---- debug help

hi guys/girls, im trying to learn C++ and followed a video from youtube (https://www.youtube.com/watch?v=IydkqseK6oQ) to write some code only the program doesnt behave as required and the server is always looking for connections and never finds one....... does anyone know why this might be i dont get compile time errors.

Here's the code for the server:

Code:

#include<iostream>
#include<string.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<stdlib.h>
#include<unistd.h>
#include<netinet/ip.h>
using namespace std;

int main()
{
    int client, server;
    int portNum = 1500;
    bool isExit = false;
    int bufsize = 1024;
    char buffer[bufsize];
    
struct sockaddr_in server_addr;
    socklen_t size;

// init socket

    client = socket(AF_INET, SOCK_STREAM, 0);

    if (client < 0)
    {
    cout << "Error establishing connection" << endl;
    exit(1);
    }

    cout << "Server Socket connection created..." << endl;

    server_addr.sin_family = AF_INET;
    server_addr.sin_addr.s_addr = htons(INADDR_ANY);
    server_addr.sin_port = htons(portNum);

// Binding socket  

    if (bind(client, (struct sockaddr*)&server_addr, sizeof(server_addr)) < 0)
    {
    cout << "Error binding socket...." << endl; 
    exit(1);
    }

size = sizeof(server_addr);
cout << "Looking for clients..." << endl;

// Listening socket

    listen(client, 1);

// Accept client

    server = accept(client, (struct sockaddr*)&server_addr, &size);
if (server < 0)
{
cout << "Error on accepting.." << endl;
exit(1);
}

while (server > 0)
{
    strcpy(buffer, "Server connected...\n");
    send(server, buffer, bufsize, 0);
    
    cout << "Connected with client..." << endl;
    cout << "Enter # to end the connection" << endl;

    cout << "Client: ";
do {
        recv(server, buffer, bufsize, 0);
        cout << "buffer" << " ";
        if (*buffer == '#')
        {        
            *buffer = '*';
            isExit = true;
        }    
   }

while (*buffer != '*');
    
    do{
           cout << "\nServer: ";
        do{
            cin >> buffer;
            send(server, buffer, bufsize, 0);
            if (*buffer == '#')
        {
            send(server, buffer, bufsize, 0);
            *buffer = '*';
            isExit = true;
        
        }
}while (*buffer != '*');
    cout << "Client: ";
    do {
        recv(server, buffer, bufsize, 0);
        cout << buffer << " ";
        if(*buffer == '#')
        {
            *buffer == '*';
            isExit = true;
        }
    }
while (*buffer != '*');
}
while (!isExit);
cout << "Connection terminated..." << endl;
cout << "Goodbye..." << endl;
isExit = false;
exit(1);
}
close(client);
return 0;
}

here's the code for the client:

Code:

#include<iostream>
#include<string.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<stdlib.h>
#include<unistd.h>
#include<netdb.h>

using namespace std;

int main()
{

int client, server;
    int portNum = 1500;
    bool isExit = false;
    int bufsize = 1024;
    char buffer[bufsize];
    char *ip = "127.0.0.1";

    struct sockaddr_in server_addr;

// Init socket 


    client = socket(AF_INET, SOCK_STREAM, 0);

    if (client < 0)
    {
    cout << "Error creating socket" << endl;
    exit(1);
    }

cout << "Client socket created" << endl;

server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(portNum);

// Connecting socket server

if (connect(client, (struct sockaddr*)&server_addr, sizeof(server_addr)) == 0)

{
     cout << "Connecting to server..." << endl;
}
    recv(client, buffer, bufsize, 0);
    cout << "Connection confirmed" << endl;
    cout << "Enter # to end the connection" << endl; 

do {
    cout << "Client: ";
    do {
        cin >> buffer;
        send(client, buffer, bufsize, 0);
        if (*buffer == '#')
        {    
            send(client, buffer, bufsize, 0);
            *buffer = '*';
            isExit = true;
        }
    }
    while (*buffer != 42);

    cout << "Server: ";

    do{
        recv(client, buffer, bufsize, 0);
        cout << buffer << " ";
        
    if(*buffer == '#')
        {
            *buffer == '*';
            isExit = true;
        }

    }
    while (*buffer != 42);

    cout << endl;
}
    while(!isExit);
        cout << "Connection terminated..." << endl;
        cout << "Goodbye..." << endl;

    close(client);

    return 0;
}

thanks in advance guys/girls....

Start by copy/pasting Beej's examples.
Beej's Guide to Network Programming

Originally Posted by yoyo123456

any chance to help debug the OP?

Not really, I've no interest in wading through badly indented code based on guesswork.