delete empty file net.h

.clang-format

@@ -0,0 +1,20 @@
+{
+    "BasedOnStyle": "LLVM",
+    "UseTab": "Always",
+    "IndentWidth": 8,
+    "TabWidth": 8,
+    "ColumnLimit": 100,
+    "LineEnding": "LF",
+    "RemoveBracesLLVM": true,
+    "AlwaysBreakAfterReturnType": "AllDefinitions",
+    "BreakBeforeBraces": "Custom",
+    "BraceWrapping": {
+	"AfterFunction": true,
+	"AfterClass": false,
+	"AfterControlStatement": false,
+	"AfterNamespace": false,
+	"AfterStruct": false,
+	"BeforeElse": false,
+	"BeforeCatch": false
+    }
+}

.gitignore

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

README.md

@@ -1,3 +1,27 @@
-an attempt at a threaded ncurses network chat in c++
+# threaded network chat refactor
 
-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.
+The code has been refactored and it compiles. Hopefully it won't explode, but that if it does, that just means we have
+actual meaningful work to do.
+
+## 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

@@ -0,0 +1,123 @@
+# Project Coding Style
+
+**Subject to change, let's please discuss this.**
+
+This is a less extreme version of the style I generally follow, and unless someone has a much better style I would
+like to use this one for code we will be collaborating on. Feel free to ignore this if you plan for your own code to
+be entirely your responsibility.
+
+Also don't swear on anything we expect to present to the professor.
+
+**Please install the [C/C++ Extension Pack](https://marketplace.visualstudio.com/items?itemName=ms-vscode.cpptools-extension-pack) and [clang-format](https://marketplace.visualstudio.com/items?itemName=xaver.clang-format) for Visual Studio Code.**
+
+Follow the instructions in the previous link to set up the  correctly.
+
+## TL;DR
+
+Call files `.cc` instead of `.c` or `.cpp` and use `.h` headers for everything.
+
+If you follow the setup instructions you should be fine. Otherwise:
+
+Use [BSD Kernel Normal Form (KNF)](https://en.wikipedia.org/wiki/Indentation_style#BSD_KNF) for function bodies
+and [Kernighan & Ritchie (K&R)](https://en.wikipedia.org/wiki/Indentation_style#K&R) style (with a few modifications stated in **General Guidelines**) everywhere else.
+
+## Existing Literature
+
+I recommend skimming over these for inspiration.
+
+- [Names](https://research.swtch.com/names) - Russ Cox
+- [Notes on Programming in C](http://doc.cat-v.org/bell_labs/pikestyle) - Rob Pike
+
+## General Guidelines
+
+- Use 8-width tabs, not spaces, for indentation.
+- If you copy code from online, copy it by hand.
+- Use [K&R style](https://en.wikipedia.org/wiki/Indentation_style#K&R) for indentation and brace placement where possible.
+  - When writing function bodies:
+	- return type goes on its own line,
+	- function name() is on a line below that, and
+	- open bracket `{` after that.
+	- `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.**
+- Start source files as `.cc` straight away, even if they're pure **C**.
+
+### C++-specific guidelines
+
+- file extension: `.cc`, `.h`
+- C++ strings are fine
+- Vectors are fine
+- Use `printf` and co., not `std::cout`, unless somehow absolutely necessary
+- `fstream`s for input/output/log files are fine
+- Use C's `struct`s instead of objects unless you really really need an object.
+- Use C-style type casting where possible
+
+TL;DR pretend you're using C with basic modern conveniences. **When in doubt, ask.**
+
+### Naming and Abbreviations
+
+The length of a function name, variable name, et cetera should be directly proportional to its importance and lifetime.
+
+#### Don't
+
+- 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),
+- use single-letter abbreviations for anything that lasts more than 15 lines, or
+- abbreviate a word when an apt abbreviation does not exist.
+
+#### 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++)`
+- break any rule if following it ruins the readability
+
+## Source File layout
+
+```C++
+/* C++ includes */
+#include <iostream>
+
+/* C (.h) includes */
+#include <stdio.h>
+
+/* local header includes */
+#include "unicorns.h"
+
+/* "using" directives */
+using namespace std;
+
+/* global constants */
+const int life = 42;
+
+/* global variables */
+int degrees = 90;
+
+/* function prototypes */
+int div_numb(int n, int d);
+
+/* main function body */
+int
+main(int argc, char *argv[])
+{
+	int numerator = 32;
+	int denominator = 16;
+	int result;
+	
+	puts("What is 32 divided by 16?");
+	
+	result = div_numb(32, 16);
+
+	return 0;
+}
+
+/* other function bodies */
+int
+div_numb(int n, int d)
+{
+	return n / d;
+}
+```
+
+

formatting-configs/.editorconfig

@@ -0,0 +1,32 @@
+root = true
+
+[*]
+charset = utf-8
+indent_style = tab
+indent_size = 8
+tab_width = 8
+end_of_line = lf
+insert_final_newline = true
+
+[*.{c,cc,cpp,h,hpp}]
+
+# Unbraced single-statement blocks
+cpp_remove_braces_for_single_line_control_statements = true
+resharper_cpp_remove_braces_for_single_statements = true
+resharper_cpp_add_braces_for_single_line_if = false
+
+# Enforce BSD KNF for function bracess
+cpp_new_line_before_open_brace_function = new_line
+resharper_cpp_brace_style = next_line
+resharper_cpp_function_definition_braces = next_line
+
+# Enforce K&R for everything else
+cpp_new_line_before_open_brace_namespace = same_line
+cpp_new_line_before_open_brace_type = same_line
+cpp_new_line_before_open_brace_block = same_line
+cpp_new_line_before_open_brace_lambda = same_line
+cpp_new_line_before_else = false
+cpp_new_line_before_catch = false
+resharper_cpp_namespace_declaration_braces = end_of_line
+resharper_cpp_type_declaration_braces = end_of_line
+resharper_cpp_control_transfer_braces = end_of_line

formatting-configs/clang-format.json

@@ -0,0 +1,20 @@
+{
+    "BasedOnStyle": "LLVM",
+    "UseTab": "Always",
+    "IndentWidth": 8,
+    "TabWidth": 8,
+    "ColumnLimit": 120,
+    "LineEnding": "LF",
+    "RemoveBracesLLVM": true,
+    "AlwaysBreakAfterReturnType": "AllDefinitions",
+    "BreakBeforeBraces": "Custom",
+    "BraceWrapping": {
+	"AfterFunction": true,
+	"AfterClass": false,
+	"AfterControlStatement": false,
+	"AfterNamespace": false,
+	"AfterStruct": false,
+	"BeforeElse": false,
+	"BeforeCatch": false
+    }
+}

formatting-configs/clang-format.yml

@@ -0,0 +1,21 @@
+# BSD KNF funcs + K&R blocks + other stuff
+# Requires clang-format >=16
+BasedOnStyle: LLVM # defaults
+UseTab: Always
+IndentWidth: 8
+TabWidth: 8
+ColumnLimit: 120
+LineEnding: LF # unix
+
+RemoveBracesLLVM: true # single-statement blocks
+AlwaysBreakAfterReturnType: AllDefinitions # KNF functions
+
+BreakBeforeBraces: Custom
+BraceWrapping:
+  AfterFunction: true # KNF
+  AfterClass: false # K&R
+  AfterControlStatement: false # K&R
+  AfterNamespace: false # K&R
+  AfterStruct: false # K&R
+  BeforeElse: false # K&R
+  BeforeCatch: false # K&R

modified-example.cc

@@ -0,0 +1,386 @@
+/*an attempt at pthread and network and ncurses all in the same function
+ */
+#include <arpa/inet.h>
+#include <curses.h>
+#include <fstream>
+#include <iostream>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <ostream>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <string>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <sys/wait.h>
+#include <unistd.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;
+}

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.

src/.clang-format

@@ -0,0 +1,20 @@
+{
+    "BasedOnStyle": "LLVM",
+    "UseTab": "Always",
+    "IndentWidth": 8,
+    "TabWidth": 8,
+    "ColumnLimit": 100,
+    "LineEnding": "LF",
+    "RemoveBracesLLVM": true,
+    "AlwaysBreakAfterReturnType": "AllDefinitions",
+    "BreakBeforeBraces": "Custom",
+    "BraceWrapping": {
+	"AfterFunction": true,
+	"AfterClass": false,
+	"AfterControlStatement": false,
+	"AfterNamespace": false,
+	"AfterStruct": false,
+	"BeforeElse": false,
+	"BeforeCatch": false
+    }
+}

src/Makefile

@@ -0,0 +1,20 @@
+CXX = g++
+CXXFLAGS = -pthread -Wall -Wextra -O2 -std=c++17
+LDFLAGS =  -lcurses
+TARGET = ct
+CXX_SRCS = main.cc net.cc file.cc display.cc
+CXX_OBJS = $(CXX_SRCS:.cc=.o)
+
+all: $(TARGET)
+
+$(TARGET): $(CXX_OBJS)
+	$(CXX) $(CXXFLAGS) $(LDFLAGS) $(CXX_OBJS) -o $(TARGET) $(LDFLAGS)
+
+%.o: %.cc
+	$(CXX) $(CXXFLAGS) -c $< -o $@
+
+.PHONY: clean
+
+clean:
+	rm -f *.o $(TARGET)
+

src/README.md

@@ -0,0 +1,6 @@
+# refactor v1
+
+I'm trying to split this up into multiple pieces but that probably involves using fewer global variables and passing the
+same data between the functions that use them.
+
+global variables will use `snake_case` and global constants will use `SCREAMING_SNAKE_CASE`.

src/chat.h

@@ -0,0 +1,30 @@
+#ifndef CHAT_H
+#define CHAT_H
+
+#include <string>
+
+#include <netinet/in.h>
+#include <pthread.h>
+
+#define CURSOR_DEFAULT_POSITION_X 2
+#define CURSOR_DEFAULT_POSITION_Y 12
+#define LOG_LENGTH 10
+
+typedef struct __wclient_args_t wclient_args_t;
+
+void *await_client(void *a);
+void big_panic_msg(void);
+void clear_rows(int s, int e);
+int count_lines(std::string p);
+int file_disp(std::string p, int lnstart, int lncount = 10);
+int log_append(std::string p, std::string ln);
+int log_linect(std::string p);
+void client_start(std::string ip, int port, int *sock, std::string log, pthread_t *thr);
+void client_stop(struct timeval *start, struct timeval *end, int *sock, int *bread, int *bwrit);
+void *poll_client(int *sock, int *bread, std::string log, int *lpos);
+void *poll_server(void *args);
+int
+server_start(int port, int *sock, std::string log, pthread_t *thr, struct timeval *ts);
+void server_stop(struct timeval *start, struct timeval *end, int *sock, int *bread, int *bwrit);
+
+#endif

src/display.cc

@@ -0,0 +1,50 @@
+#include <fstream>
+
+#include <curses.h>
+
+#include "chat.h"
+
+void
+clear_rows(int s, int e)
+{
+	/* preserve cursor location */
+	int x_bef;
+	int y_bef;
+
+	getyx(stdscr, y_bef, x_bef);
+
+	for (int i = s; i < e; i++) {
+		move(i, 0);
+		clrtoeol();
+	}
+
+	move(y_bef, x_bef);
+}
+
+int
+file_disp(std::string p, int lnstart, int lncount)
+{
+	std::ifstream f(p);
+
+	if (!f)
+		return 1;
+
+	int i = 0;
+	int ln_no = 0;
+	std::string ln;
+
+	clear_rows(0, lncount + 1); /* clear chat window */
+
+	while (getline(f, ln) && i <= ln_no + lnstart + 1) {
+		if (i >= lnstart) {
+			move(ln_no, 0);
+			printw("%s", ln.c_str());
+			ln_no++;
+		}
+		i++;
+	}
+
+	move(CURSOR_DEFAULT_POSITION_Y, CURSOR_DEFAULT_POSITION_X);
+	refresh();
+	return 0;
+}

src/file.cc

@@ -0,0 +1,41 @@
+#include <algorithm>
+#include <fstream>
+#include <iterator>
+
+#include "chat.h"
+
+int
+count_lines(std::string p)
+{
+	int c = 0;
+
+	std::ifstream f(p);
+	if (!f)
+		return c;
+
+	/* Apparently this is the most efficient way to count all lines in a file. How revolting! */
+	c = std::count(std::istreambuf_iterator<char>(f), std::istreambuf_iterator<char>(), '\n');
+
+	return c;
+}
+
+int
+log_append(std::string p, std::string ln)
+{
+	std::ofstream f;
+
+	f.open(p, std::ios_base::app);
+	if (!f.is_open())
+		return 1;
+
+	f << ln << std::endl;
+
+	f.close();
+
+	// "this probably would help but theres too much broken stuff right now to be sure" - scott
+	// bool inclnum should be added to function if we do decide to use this block:
+	// if (inclnum)
+	//	line_position++;
+
+	return 0;
+}

src/main.cc

@@ -0,0 +1,150 @@
+#include <fstream>
+#include <string>
+
+#include <arpa/inet.h>
+#include <bits/types/struct_timeval.h>
+#include <curses.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+#include "chat.h"
+
+typedef enum { NO_MODE = 0, SERVER_MODE = 1, CLIENT_MODE = 2 } chatmode_t;
+
+chatmode_t mode = NO_MODE;
+
+int line_position = 0;
+
+struct timeval time_start;
+struct timeval time_end;
+int bytes_read;
+int bytes_written;
+
+int listen_port = 9999;
+std::string listen_ip_address = "127.0.0.1";
+
+std::string log_path;
+
+int socket_descriptor_server;
+int socket_descriptor_client;
+
+pthread_t client_wait_thread;
+
+int
+main(int argc, char *argv[])
+{
+	int err = 0;
+	char *usr_in = new char[1024];
+	bool quit = false;
+
+	if (argc > 1 && (!strcmp(argv[1], "client")))
+		mode = CLIENT_MODE;
+	else
+		mode = SERVER_MODE;
+
+	initscr();
+	use_default_colors();
+
+	line_position = count_lines(log_path) - LOG_LENGTH + 1;
+
+	switch (mode) {
+	case CLIENT_MODE:
+		log_append(log_path, "CLIENT MODE");
+		client_start(listen_ip_address, listen_port, &socket_descriptor_client, log_path,
+			     &client_wait_thread);
+		break;
+	case SERVER_MODE:
+		log_append(log_path, "SERVER MODE");
+		err = server_start(listen_port, &socket_descriptor_server, log_path,
+				   &client_wait_thread, &time_start);
+		if (err)
+			goto panic_no_server_sock;
+		break;
+	default:
+		goto panic_no_mode;
+		break;
+	}
+
+	while (!quit) {
+		file_disp(log_path, line_position, LOG_LENGTH);
+
+		if (count_lines(log_path) > LOG_LENGTH)
+			line_position++;
+
+		/* prompt for input */
+		move(CURSOR_DEFAULT_POSITION_Y, 0);
+		printw("> ");
+
+		/* await input */
+		getstr(usr_in);
+		log_append(log_path, usr_in);
+		send(socket_descriptor_client, (char *)usr_in, strlen(usr_in), 0);
+	}
+
+	/* Final exit point if everything goes OK */
+
+	endwin();
+
+	switch (mode) {
+	case CLIENT_MODE:
+		client_stop(&time_start, &time_end, &socket_descriptor_client, &bytes_read,
+			    &bytes_written);
+		break;
+	case SERVER_MODE:
+		server_stop(&time_start, &time_end, &socket_descriptor_server, &bytes_read,
+			    &bytes_written);
+		break;
+	default:
+		goto panic_no_mode;
+		break;
+	}
+
+	return 0;
+
+panic_no_mode:
+	big_panic_msg();
+
+	if (mode == NO_MODE)
+		fprintf(stderr, "Fatal: Mode was not set!\n");
+	else
+		fprintf(stderr, "Fatal: Mode was set to invalid enum %i\n", mode);
+
+	return 1;
+
+panic_no_server_sock:
+	big_panic_msg();
+
+	fprintf(stderr, "Fatal: Could not establish server socket!\n");
+	return 1;
+}
+
+/*
+ * For when things go really really bad.
+ * Check if there is a window and if so, close it.
+ * Spit out a really loud obnoxious error afterwards.
+ */
+void
+big_panic_msg(void)
+{
+	if (!isendwin())
+		endwin();
+
+	fprintf(stderr, "-----FATAL ERROR, THIS SHOULD NEVER HAPPEN-----\n");
+	usleep(400 * 1000);
+	fprintf(stderr, "You may ask yourself...      how do I work this?\n");
+	putchar(7);
+	usleep(400 * 1000);
+	fprintf(stderr, "And you may find yourself... past the point of return 0;!\n");
+	putchar(7);
+	usleep(400 * 1000);
+	fprintf(stderr, "And you may ask yourself...  well, how did I get here?\n");
+	putchar(7);
+}

src/net.cc

@@ -0,0 +1,211 @@
+#include <string>
+
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <pthread.h>
+#include <string.h>
+#include <strings.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+#include "chat.h"
+
+typedef struct __wclient_args_t {
+	sockaddr_in new_addr;
+	socklen_t new_addr_siz;
+	int aux;
+
+	int *bread;
+	int *sock;
+	std::string log;
+	int *lpos;
+} wclient_args_t;
+
+typedef struct __wserver_args_t {
+	sockaddr_in new_addr;
+	socklen_t new_addr_siz;
+	int aux;
+
+	int *bread;
+	int *lpos;
+	std::string log;
+} wserver_args_t;
+
+/* client_start(listen_ip, listen_port, &socket_descriptor_client, log_path, &client_wait_thread);
+ */
+void
+client_start(std::string ip, int port, int *sock, std::string log, pthread_t *thr)
+{
+	char msg[1024];
+	int bread;
+	int bwrit;
+	sockaddr_in send_addr;
+
+	struct timeval time_start;
+	struct timeval time_end;
+	struct hostent *host = gethostbyname(ip.c_str());
+
+	auto *a = new wclient_args_t{};
+
+	bzero((char *)&send_addr, sizeof(send_addr));
+	send_addr.sin_family = AF_INET;
+	send_addr.sin_addr.s_addr = inet_addr(inet_ntoa(*(struct in_addr *)*host->h_addr_list));
+	send_addr.sin_port = htons(port);
+	*sock = socket(AF_INET, SOCK_STREAM, 0);
+
+attempt_client_connection:
+	int stat = connect(*sock, (sockaddr *)&send_addr, sizeof(send_addr));
+	if (stat < 0) {
+		log_append(log, "Error connecting to socket, retrying...");
+		goto attempt_client_connection;
+	}
+
+	log_append(log, "Connected to the server!");
+	bread = bwrit = 0;
+
+	gettimeofday(&time_start, NULL);
+
+	a->aux = *sock;
+	pthread_create(thr, nullptr, poll_server, a);
+	pthread_detach(*thr);
+}
+
+int
+server_start(int port, int *sock, std::string log, pthread_t *thr, struct timeval *ts)
+{
+	auto *a = new wclient_args_t{};
+	sockaddr_in srv_addr;
+	sockaddr_in newsock;
+	socklen_t newsock_siz = sizeof(newsock);
+	int bstat;
+	int rc;
+
+	/* set up socket and connection tools */
+	bzero((char *)&srv_addr, sizeof(srv_addr));
+	srv_addr.sin_family = AF_INET;
+	srv_addr.sin_addr.s_addr = htonl(INADDR_ANY);
+	srv_addr.sin_port = htons(port);
+
+	/* open stream-oriented socket w inet addr and track sock descriptor */
+	*sock = socket(AF_INET, SOCK_STREAM, 0);
+	if (*sock < 0)
+		return 1;
+
+	/* bind sock to its local addr */
+	bstat = bind(*sock, (struct sockaddr *)&srv_addr, sizeof(srv_addr));
+	if (bstat < 0)
+		return 1;
+
+	log_append(log, "Waiting for a client to connect...");
+
+	/* listen for up to 5 simultaneous requests */
+	listen(*sock, 5);
+	a->new_addr = newsock;
+	a->new_addr_siz = newsock_siz;
+
+	rc = pthread_create(thr, nullptr, await_client, a);
+
+	pthread_detach(*thr);
+
+	log_append(log, "Server started successfully.");
+
+	gettimeofday(ts, NULL);
+
+	return 0;
+}
+
+void *
+await_client(void *args)
+{
+	wclient_args_t *a = static_cast<wclient_args_t *>(a);
+
+	*a->sock = accept(*a->sock, (sockaddr *)&a->new_addr, &a->new_addr_siz);
+
+	if (*a->sock >= 0) {
+		log_append(a->log, "client connected");
+
+		if (count_lines(a->log) > LOG_LENGTH)
+			++*a->lpos;
+
+		file_disp(a->log, *a->lpos, LOG_LENGTH);
+	}
+
+	/* get what we need for the return and throw the rest away */
+	int *s = a->sock;
+	int *b = a->bread;
+	std::string l = a->log;
+	int *p = a->lpos;
+	delete a;
+
+	return poll_client(s, b, l, p);
+}
+
+void *
+poll_client(int *sock, int *bread, std::string log, int *lpos)
+{
+	char msg[1024];
+	for (;;) {
+		/* listen for msg from client */
+		memset(&msg, 0, sizeof(msg)); /* clear buf */
+		*bread += recv(*sock, (char *)&msg, sizeof(msg), 0);
+		log_append(log, msg);
+
+		if (count_lines(log) > LOG_LENGTH)
+			++*lpos;
+
+		file_disp(log, *lpos, LOG_LENGTH);
+	}
+
+	return nullptr;
+}
+
+void *
+poll_server(void *args)
+{
+	wserver_args_t *a = static_cast<wserver_args_t *>(args);
+	int sock_desc = (int)a->aux;
+	char msg[1024];
+
+	for (;;) {
+		memset(&msg, 0, sizeof(msg));
+		*a->bread += recv(sock_desc, (char *)&msg, sizeof(msg), 0);
+
+		log_append(a->log, msg);
+
+		if (count_lines(a->log) > LOG_LENGTH)
+			++*a->lpos;
+
+		file_disp(a->log, *a->lpos, LOG_LENGTH);
+	}
+
+	delete a;
+}
+
+void
+server_stop(struct timeval *start, struct timeval *end, int *sock, int *bread, int *bwrit)
+{
+	long e = end->tv_sec - start->tv_sec;
+
+	gettimeofday(end, NULL);
+	close(*sock);
+
+	/* Don't just die silently */
+	puts("********Session********");
+	printf("Bytes written: %i\nBytes Read: %i\n", *bwrit, *bread);
+	printf("Elapsed time: %ld\n secs\n", e);
+	puts("Connection closed...");
+}
+
+void
+client_stop(struct timeval *start, struct timeval *end, int *sock, int *bread, int *bwrit)
+{
+	long e = end->tv_sec - start->tv_sec;
+
+	gettimeofday(end, NULL);
+	close(*sock);
+	puts("********Session********");
+	printf("Bytes written: %i\nBytes read: %i\n", *bwrit, *bread);
+	printf("Elapsed time: %ld\n secs\n", e);
+	puts("Connection closed...");
+}