add example from scott's initial version

.clang-format

@@ -3,7 +3,6 @@
     "UseTab": "Always",
     "IndentWidth": 8,
     "TabWidth": 8,
-    "ColumnLimit": 100,
     "LineEnding": "LF",
     "RemoveBracesLLVM": true,
     "AlwaysBreakAfterReturnType": "AllDefinitions",

.gitignore

@@ -0,0 +1,3 @@
+old/client.txt
+old/server.txt
+old/main

README.md

@@ -1,34 +0,0 @@
-# threaded network chat refactor
-
-https://www.youtube.com/watch?v=wecDU2t37gM
-
-<iframe width="560" height="315" src="https://www.youtube.com/embed/wecDU2t37gM?si=YH4pZrsXo-9n_ryh" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
-
-## What now?
-
-See TODO. From here we're going to push the code to the gitlab like we were told to after everyone
-is set up. Follow the coding style guidelines because otherwise everything will be extremely gross
-and inconsistent. If you set up your editor correctly, it will take care of most of that stuff.
-
-## TODO
-
-- Finalize coding style,
-  - **see [STYLE.md](STYLE.md)**
-- Get everyone's editors set up for clangd/clang-format and git
-- Make sure everyone's compiler toolchains work
-- Decide who gets what responsibilities
-- Distribute appropriate code to people with those responsibilities
-- Have everyone upload their respective code to their sections of the gitlab
-
-## Code
-
-Everything is in [src/](src).
-A mostly untouched copy of [Scott's original code](https://git.therats.win/scott/threaded_network_chat) is also in [old/](old).
-A reformatted version of that code is also in [modified-example.cc](modified-example.cc) but it can be ignored.
-
-## Build
-
-```
-cd src/
-make
-```

STYLE.md

@@ -37,9 +37,9 @@ I recommend skimming over these for inspiration.
 	- return type goes on its own line,
 	- function name() is on a line below that, and
 	- open bracket `{` after that.
-  - no brackets on `for`, `if`, `while`, etc. statements that only contain one line 
+	- `for`, `if`, `while`, etc. statements that only contain one line 
 - Use `/* comments */` for permanent comments, `// comments` for temporary ones e.g. `TODO`'s or notices
-- **Try to make every line 100 characters wide or less.**
+- **Try to make every line 120 characters wide or less.**
 - Start source files as `.cc` straight away, even if they're pure **C**.
 
 ### C++-specific guidelines
@@ -60,7 +60,7 @@ The length of a function name, variable name, et cetera should be directly propo
 
 #### Don't
 
-- abbreviate global variables **EVER**,
+- abbreviate global variables,
 - mention the data type in a variable name,
 - use a full word where an abbreviation will do
   - (especially not in a variable that will die 5 lines later),
@@ -70,7 +70,7 @@ The length of a function name, variable name, et cetera should be directly propo
 #### Do
 
 - abbreviate extremely short-lived variables to one letter,
-  - e.g. `for (int index = 0; index < 10; i++)` -> `for (int i = 0; i < 10; i++)`
+  - e.g. `for (int index=0, index<10, i++)` -> `for (int i=0, i<10, i++)`
 - break any rule if following it ruins the readability
 
 ## Source File layout
@@ -120,3 +120,4 @@ div_numb(int n, int d)
 }
 ```
 
+

formatting-configs/clang-format.json

@@ -3,7 +3,6 @@
     "UseTab": "Always",
     "IndentWidth": 8,
     "TabWidth": 8,
-    "ColumnLimit": 120,
     "LineEnding": "LF",
     "RemoveBracesLLVM": true,
     "AlwaysBreakAfterReturnType": "AllDefinitions",

formatting-configs/clang-format.yml

@@ -4,7 +4,6 @@ BasedOnStyle: LLVM # defaults
 UseTab: Always
 IndentWidth: 8
 TabWidth: 8
-ColumnLimit: 120
 LineEnding: LF # unix
 
 RemoveBracesLLVM: true # single-statement blocks

modified-example.cc

@@ -87,8 +87,9 @@ displayFile(string path, int startLineNum = 0, int numLines = 10)
 		// print each line directly to the screen
 		int num = 0;
 		while (getline(file, line) &&
-		       num <= numLines + startLineNum + 1) // while there is file content and the
+		       num <= numLines + startLineNum +
-							   // line number isn't too high
+				  1) // while there is file content and the line
+				     // number isn't too high
 		{
 			if (num >= startLineNum) {
 				move(lineNum, 0);
@@ -134,7 +135,8 @@ waitForClient(void *argss)
 {
 	waitClientArgs *args = static_cast<waitClientArgs *>(argss);
 	clientSocketDescriptor =
-	    accept(serverSocketDescriptor, (sockaddr *)&args->newSockAddr, &args->newSockAddrSize);
+	    accept(serverSocketDescriptor, (sockaddr *)&args->newSockAddr,
+		   &args->newSockAddrSize);
 	if (clientSocketDescriptor >= 0) {
 		writeToFile(logFileName, "client connected");
 		if (linesInFile(logFileName) > LOG_LENGTH)
@@ -153,7 +155,8 @@ pollForClient()
 	while (1) {
 		// receive a message from the client (listen)
 		memset(&msg, 0, sizeof(msg)); // clear the buffer
-		bytesRead += recv(clientSocketDescriptor, (char *)&msg, sizeof(msg), 0);
+		bytesRead +=
+		    recv(clientSocketDescriptor, (char *)&msg, sizeof(msg), 0);
 		writeToFile(logFileName,
 			    msg); // write the client's message to file
 		if (linesInFile(logFileName) > LOG_LENGTH)
@@ -186,8 +189,8 @@ setupServer(int port)
 		exit(0);
 	}
 	// bind the socket to its local address
-	int bindStatus =
+	int bindStatus = bind(serverSocketDescriptor,
-	    bind(serverSocketDescriptor, (struct sockaddr *)&servAddr, sizeof(servAddr));
+			      (struct sockaddr *)&servAddr, sizeof(servAddr));
 	if (bindStatus < 0) {
 		// keeps from bricking the terminal if this happens
 		endwin();
@@ -207,7 +210,8 @@ setupServer(int port)
 	auto *aaa = new waitClientArgs{}; // it looks stupid but it works
 	aaa->newSockAddr = newSockAddr;
 	aaa->newSockAddrSize = newSockAddrSize;
-	int rc = pthread_create(&client_wait_thread, nullptr, waitForClient, aaa);
+	int rc =
+	    pthread_create(&client_wait_thread, nullptr, waitForClient, aaa);
 	pthread_detach(client_wait_thread);
 	writeToFile(logFileName, "Server started sucessfully");
 	gettimeofday(&start1, NULL);
@@ -254,7 +258,8 @@ pollForSever(void *args)
 	char msg[1024];
 	while (1) {
 		memset(&msg, 0, sizeof(msg)); // clear the buffer
-		bytesRead += recv(socketDescriptor, (char *)&msg, sizeof(msg), 0);
+		bytesRead +=
+		    recv(socketDescriptor, (char *)&msg, sizeof(msg), 0);
 
 		// not needed for proofs of concept testing
 		/*if(!strcmp(msg, "exit"))
@@ -287,12 +292,13 @@ setupClient()
 	sockaddr_in sendSockAddr;
 	bzero((char *)&sendSockAddr, sizeof(sendSockAddr));
 	sendSockAddr.sin_family = AF_INET;
-	sendSockAddr.sin_addr.s_addr = inet_addr(inet_ntoa(*(struct in_addr *)*host->h_addr_list));
+	sendSockAddr.sin_addr.s_addr =
+	    inet_addr(inet_ntoa(*(struct in_addr *)*host->h_addr_list));
 	sendSockAddr.sin_port = htons(PORT_NUM);
 	clientSocketDescriptor = socket(AF_INET, SOCK_STREAM, 0);
 	// try to connect...
-	int status =
+	int status = connect(clientSocketDescriptor, (sockaddr *)&sendSockAddr,
-	    connect(clientSocketDescriptor, (sockaddr *)&sendSockAddr, sizeof(sendSockAddr));
+			     sizeof(sendSockAddr));
 	if (status < 0)
 		writeToFile(logFileName, "Error connecting to socket!");
 	writeToFile(logFileName, "Connected to the server!");
@@ -301,7 +307,8 @@ setupClient()
 	gettimeofday(&start1, NULL);
 	auto *aaa = new waitClientArgs{}; // it looks stupid but it works
 	aaa->auxInt = clientSocketDescriptor;
-	int rc = pthread_create(&client_wait_thread, nullptr, pollForSever, aaa);
+	int rc =
+	    pthread_create(&client_wait_thread, nullptr, pollForSever, aaa);
 	pthread_detach(client_wait_thread);
 }
 
@@ -377,10 +384,13 @@ main(int argc, char *argv[])
 		printw("> ");
 		getstr(userInput);
 		writeToFile(logFileName, userInput);
-		if (mode == 1)
+		if (mode == 1) {
-			send(clientSocketDescriptor, (char *)userInput, strlen(userInput), 0);
+			send(clientSocketDescriptor, (char *)userInput,
-		else
+			     strlen(userInput), 0);
-			send(clientSocketDescriptor, (char *)userInput, strlen(userInput), 0);
+		} else {
+			send(clientSocketDescriptor, (char *)userInput,
+			     strlen(userInput), 0);
+		}
 	}
 
 	endwin();

old/Makefile

@@ -0,0 +1,15 @@
+# Compiler and flags
+CXX = g++
+CXXFLAGS = -pthread -Wall -Wextra -O2 -std=c++17 -lcurses
+
+# Targets
+all: main
+
+# Client build
+main: main.cpp
+	$(CXX) $(CXXFLAGS) main.cpp -o main
+
+# Clean build artifacts
+clean:
+	rm -f main
+

old/README.md

@@ -0,0 +1,3 @@
+an attempt at a threaded ncurses network chat in c++
+
+the biggest bug right now is that if you start the server without having started it previously and there isn't a server.txt and client.txt from a previous session, it doesn't work at all. It will work when you try it a second time.

old/client.cpp

@@ -0,0 +1,86 @@
+/*this network test uses more complicated network functionality but doesnt use threads or ncurses. 
+that means you have to wait for the other end to send a message before getting to write a new message
+to run, do ./client.cpp 127.0.0.1 8080
+this one has args
+*/
+#include <iostream>
+#include <string>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <netdb.h>
+#include <sys/uio.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <fcntl.h>
+#include <fstream>
+using namespace std;
+//Client side
+int main(int argc, char *argv[])
+{
+    //we need 2 things: ip address and port number, in that order
+    if(argc != 3)
+    {
+        cerr << "Usage: ip_address port" << endl; exit(0); 
+    } //grab the IP address and port number 
+    char *serverIp = argv[1]; int port = atoi(argv[2]); 
+    //create a message buffer 
+    char msg[1500]; 
+    //setup a socket and connection tools 
+    struct hostent* host = gethostbyname(serverIp); 
+    sockaddr_in sendSockAddr;   
+    bzero((char*)&sendSockAddr, sizeof(sendSockAddr)); 
+    sendSockAddr.sin_family = AF_INET; 
+    sendSockAddr.sin_addr.s_addr = 
+        inet_addr(inet_ntoa(*(struct in_addr*)*host->h_addr_list));
+    sendSockAddr.sin_port = htons(port);
+    int clientSd = socket(AF_INET, SOCK_STREAM, 0);
+    //try to connect...
+    int status = connect(clientSd,
+                         (sockaddr*) &sendSockAddr, sizeof(sendSockAddr));
+    if(status < 0)
+    {
+        cout<<"Error connecting to socket!"<<endl;// break;
+    }
+    cout << "Connected to the server!" << endl;
+    int bytesRead, bytesWritten = 0;
+    struct timeval start1, end1;
+    gettimeofday(&start1, NULL);
+    while(1)
+    {
+        cout << ">";
+        string data;
+        getline(cin, data);
+        memset(&msg, 0, sizeof(msg));//clear the buffer
+        strcpy(msg, data.c_str());
+        if(data == "exit")
+        {
+            send(clientSd, (char*)&msg, strlen(msg), 0);
+            break;
+        }
+        bytesWritten += send(clientSd, (char*)&msg, strlen(msg), 0);
+        cout << "Awaiting server response..." << endl;
+        memset(&msg, 0, sizeof(msg));//clear the buffer
+        bytesRead += recv(clientSd, (char*)&msg, sizeof(msg), 0);
+        if(!strcmp(msg, "exit"))
+        {
+            cout << "Server has quit the session" << endl;
+            break;
+        }
+        cout << "Server: " << msg << endl;
+    }
+    gettimeofday(&end1, NULL);
+    close(clientSd);
+    cout << "********Session********" << endl;
+    cout << "Bytes written: " << bytesWritten << 
+    " Bytes read: " << bytesRead << endl;
+    cout << "Elapsed time: " << (end1.tv_sec- start1.tv_sec) 
+      << " secs" << endl;
+    cout << "Connection closed" << endl;
+    return 0;    
+}

old/main.cpp

@@ -0,0 +1,402 @@
+/*an attempt at pthread and network and ncurses all in the same function
+*/
+#include <iostream>
+#include <ostream>
+#include <string>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <netdb.h>
+#include <sys/uio.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <curses.h>
+#include <fstream>
+#include <pthread.h>
+
+#include <vector>   //try to make the program work without this without doing anything awful but do it later
+
+using namespace std;
+
+const int PORT_NUM = 8888;
+const string IP_ADDRESS = "127.0.0.1";
+const int DEFAULT_CUR_X = 2;//the x position of the preferred default cursor position for message entry
+const int DEFAULT_CUR_Y = 12;//the x position of the preferred default cursor position for message entry
+
+int mode = 0;       //what mode is this program in. 0 = nothing. 1 = server. 2 = client
+int serverSocketDescriptor;//a global variable for storing the server socket descriptor.
+int clientSocketDescriptor;
+vector<int> clientSocketDescriptors;//a global vector for storing client socket descriptors
+
+//keep track of the session time using global variables
+struct timeval start1, end1;
+
+//also keep track of the amount of data sent as well
+int bytesRead, bytesWritten = 0;
+
+const int LOG_LENGTH = 10;//number of text log file lines to display
+int linePos = 0;    //counter for what current position to use in the file
+
+string logFileName;//the name of the log file
+
+pthread_t client_wait_thread;
+
+int writeToFile(string path, string line, bool incLineNum = true);
+void* waitForClient(void* argss);
+void* pollForClient();
+void* pollForSever(void* args);
+
+//clears ncurses rows in a specific region only
+void clearRows(int startingRow, int endingRow)
+{
+    //preserve the cursor location
+    int yBefore, xBefore;
+    getyx(stdscr, yBefore, xBefore);
+
+    for (int i = startingRow; i < endingRow; i++)
+    {
+        move(i, 0);
+        clrtoeol();//clear to end of line
+    }
+
+    //restore original cursor location
+    move(yBefore, xBefore);
+}
+
+//display a file using ncurses
+int displayFile(string path, int startLineNum = 0, int numLines = 10)
+{
+    ifstream file(path);
+    if (!file)
+    {
+        return 1;
+    }
+    else
+    {
+        clearRows(0, numLines+1);       //clear the chat area
+        int lineNum = 0;
+        string line;
+
+        //print each line directly to the screen
+        int num = 0;
+        while(getline(file, line) && num <= numLines + startLineNum + 1) //while there is file content and the line number isn't too high
+        {
+            if (num >= startLineNum)
+            {
+                move(lineNum, 0);
+                printw("%s", line.c_str());
+                lineNum++;//increment the row number after printing each line
+            }
+            num++;
+        }
+        move(DEFAULT_CUR_Y, DEFAULT_CUR_X);
+        refresh();
+        return 0;
+    }
+}
+
+//gets the number of lines in a file. returns -1 if there was an error.
+int linesInFile(string path)
+{
+    ifstream file(path);
+    if (!file)
+    {
+        return 1;
+    }
+    else
+    {
+        int lineNum = 0;
+        string line;
+
+        int num = 0;
+        while(getline(file, line))
+        {
+            num++;
+        }
+        return num;
+    }
+}
+
+struct waitClientArgs
+{
+    sockaddr_in newSockAddr;
+    socklen_t newSockAddrSize;
+    int auxInt;//used in client mode because I didn't want to make another struct to keep track of
+};
+
+void* waitForClient(void* argss)
+{
+    waitClientArgs* args = static_cast<waitClientArgs*>(argss);
+    clientSocketDescriptor = accept(serverSocketDescriptor, (sockaddr *)&args->newSockAddr, &args->newSockAddrSize);
+    if (clientSocketDescriptor >= 0)
+    {
+        writeToFile(logFileName, "client connected");
+        if (linesInFile(logFileName) > LOG_LENGTH)
+        {
+            linePos++;
+        }
+        displayFile(logFileName, linePos, LOG_LENGTH);
+    }
+    delete args;//delete to avoid memory leaks
+
+    return pollForClient();
+}
+
+void* pollForClient()
+{
+    char msg[1024];
+    while(1)
+    {
+        //receive a message from the client (listen)
+        memset(&msg, 0, sizeof(msg));//clear the buffer
+        bytesRead += recv(clientSocketDescriptor, (char*)&msg, sizeof(msg), 0);
+        writeToFile(logFileName, msg);//write the client's message to file
+        if (linesInFile(logFileName) > LOG_LENGTH)
+        {
+            linePos++;
+        }
+        displayFile(logFileName, linePos, LOG_LENGTH);
+    }
+
+    return nullptr;
+}
+
+//set up a suitable server for this
+int setupServer(int port)
+{    
+    //setup a socket and connection tools
+    sockaddr_in servAddr;
+    bzero((char*)&servAddr, sizeof(servAddr));
+    servAddr.sin_family = AF_INET;
+    servAddr.sin_addr.s_addr = htonl(INADDR_ANY);
+    servAddr.sin_port = htons(port);
+ 
+    //open stream oriented socket with internet address
+    //also keep track of the socket descriptor
+    serverSocketDescriptor = socket(AF_INET, SOCK_STREAM, 0);
+    if(serverSocketDescriptor < 0)
+    {
+        //keeps from bricking the terminal if this happens
+        endwin();
+
+	fprintf(stderr, "Error establishing the server socket!\n");
+        exit(0);
+    }
+    //bind the socket to its local address
+    int bindStatus = bind(serverSocketDescriptor, (struct sockaddr*) &servAddr, 
+        sizeof(servAddr));
+    if(bindStatus < 0)
+    {
+        //keeps from bricking the terminal if this happens
+        endwin();
+
+	fprintf(stderr, "Error binding socket to local address!\n");
+        exit(0);
+    }
+    writeToFile(logFileName, "Waiting for a client to connect...");
+    //listen for up to 5 requests at a time
+    listen(serverSocketDescriptor, 5);
+    //receive a request from client using accept
+    //we need a new address to connect with the client
+    sockaddr_in newSockAddr;
+    socklen_t newSockAddrSize = sizeof(newSockAddr);
+    //accept, create a new socket descriptor to 
+    //handle the new connection with client
+    auto* aaa = new waitClientArgs{};//it looks stupid but it works
+    aaa->newSockAddr = newSockAddr;
+    aaa->newSockAddrSize = newSockAddrSize;
+    int rc = pthread_create(&client_wait_thread, nullptr, waitForClient, aaa);
+    pthread_detach(client_wait_thread);
+    writeToFile(logFileName, "Server started sucessfully");
+    gettimeofday(&start1, NULL);
+    
+    return 0;
+}
+
+void closeServer()
+{
+    long e = end1.tv_sec - start1.tv_sec; /* the linter freaks out if you don't save it as a variable */
+
+    //we need to close the socket descriptors after we're all done
+    gettimeofday(&end1, NULL);
+    close(clientSocketDescriptor);
+    close(serverSocketDescriptor);
+
+    /* Don't just die silently */
+    printf("********Session********\n");
+    printf("Bytes written: %i\nBytes Read: %i\n", bytesWritten, bytesRead);
+    printf("Elapsed time: %ld\n secs\n", e);
+    printf("Connection closed...\n");
+}
+
+void closeClient()
+{
+    long e = end1.tv_sec - start1.tv_sec;
+
+    gettimeofday(&end1, NULL);
+    close(clientSocketDescriptor);
+    printf("********Session********");
+    printf("Bytes written: %i\nBytes read: %i\n", bytesWritten, bytesRead);
+    printf("Elapsed time: %ld\n secs\n", e);
+    printf("Connection closed...\n");
+}
+
+void* pollForSever(void* args)
+{
+    waitClientArgs* aaa = static_cast<waitClientArgs*>(args);
+    int socketDescriptor = (int)aaa->auxInt;
+    char msg[1024];
+    while(1)
+    {
+        memset(&msg, 0, sizeof(msg));//clear the buffer
+        bytesRead += recv(socketDescriptor, (char*)&msg, sizeof(msg), 0);
+        
+        //not needed for proofs of concept testing
+        /*if(!strcmp(msg, "exit"))
+        {
+            writeToFile(logFileName, msg);
+            displayFile(logFileName, linePos, LOG_LENGTH);
+            break;
+        }*/
+        //cout << "Server: " << msg << endl;
+	//printf("Server: %s\n");
+        writeToFile(logFileName, msg);
+        if (linesInFile(logFileName) > LOG_LENGTH)
+        {
+            linePos++;
+        }
+        displayFile(logFileName, linePos, LOG_LENGTH);
+    }
+}
+
+void setupClient()
+{
+    //we need 2 things: ip address and port number, in that order
+    //if(argc != 3)
+    //{
+    //    cerr << "Usage: ip_address port" << endl; exit(0); 
+    //} //grab the IP address and port number 
+    //create a message buffer 
+    char msg[1024]; 
+    //setup a socket and connection tools 
+    struct hostent* host = gethostbyname(IP_ADDRESS.c_str()); 
+    sockaddr_in sendSockAddr;   
+    bzero((char*)&sendSockAddr, sizeof(sendSockAddr)); 
+    sendSockAddr.sin_family = AF_INET; 
+    sendSockAddr.sin_addr.s_addr = 
+        inet_addr(inet_ntoa(*(struct in_addr*)*host->h_addr_list));
+    sendSockAddr.sin_port = htons(PORT_NUM);
+    clientSocketDescriptor = socket(AF_INET, SOCK_STREAM, 0);
+    //try to connect...
+    int status = connect(clientSocketDescriptor,
+                         (sockaddr*) &sendSockAddr, sizeof(sendSockAddr));
+    if(status < 0)
+    {
+        writeToFile(logFileName, "Error connecting to socket!");
+    }
+    writeToFile(logFileName, "Connected to the server!");
+    int bytesRead, bytesWritten = 0;
+    struct timeval start1, end1;
+    gettimeofday(&start1, NULL);
+    auto* aaa = new waitClientArgs{};//it looks stupid but it works
+    aaa->auxInt = clientSocketDescriptor;
+    int rc = pthread_create(&client_wait_thread, nullptr, pollForSever, aaa);
+    pthread_detach(client_wait_thread);
+}
+
+//appends a line of text to the end of a given file. returns 0 if the file existed, 1 if it didn't work
+int writeToFile(string path, string line, bool incLineNum)
+{
+    ofstream file;
+    file.open(path, ios_base::app);//open the file in append mode
+
+    if (file.is_open())
+    {
+        file << line << endl;
+        //this probably would help but theres too much broken stuff right now to be sure
+        //if (incLineNum)
+        //{
+        //    linePos++;
+        //}
+        return 0;
+    }
+    else
+    {
+        //do something if it didn't work
+        return 1;//i guess that's good enough for now
+    }
+}
+
+int main(int argc, char *argv[])
+{
+    if (argc > 1 && argv[1][0] == 'c')
+    {
+        //client mode
+        logFileName = "client.txt";
+        mode = 2;
+    }
+    else
+    {
+        //server mode
+        logFileName = "server.txt";
+        mode = 1;
+    }
+
+    //putting this lower down to circumvent the terminal brick when the socket was already in use results in all network functonality no longer working.
+    initscr();//creates stdscr. important step
+    use_default_colors();//this apparently tells it to use default terminal colors whenever there is no color attribute applied
+
+    //printw("Starting server...");
+
+    //you have to do this to make the scrolling still work correctly if there was already content in the log file
+    linePos = linesInFile(logFileName) - LOG_LENGTH + 1;
+
+    char *userInput = new char[1024];
+    bool exit = false;
+
+    if (mode == 2)
+    {
+        writeToFile(logFileName, "CLIENT MODE");
+        setupClient();
+    }
+    else if (mode == 1)
+    {
+        writeToFile(logFileName, "SERVER MODE");
+        setupServer(PORT_NUM);
+    }
+
+    while (!exit)
+    {
+        displayFile(logFileName, linePos, LOG_LENGTH);
+
+        //scroll along the screen if and when required so that it stays in sync
+        if (linesInFile(logFileName) > LOG_LENGTH)
+        {
+            linePos++;
+        }
+
+        move(12, 0);
+        printw("> ");
+        getstr(userInput);
+        writeToFile(logFileName, userInput);
+        if (mode == 1)
+        {
+            send(clientSocketDescriptor, (char*)userInput, strlen(userInput), 0);
+        }
+        else
+        {
+            send(clientSocketDescriptor, (char*)userInput, strlen(userInput), 0);
+        }
+    }
+
+    endwin();
+    closeServer();
+
+    return 0;
+}
+