fixed seg fault and addded basic board displaying

Makefile

@@ -1,22 +1,24 @@
+CC = g++
+CC_FLAGS = 
 
 all: build/bin/over_the_network_tic_tac_toe
 
 build/bin/over_the_network_tic_tac_toe: build/obj/main.o build/obj/net.o build/obj/input.o build/obj/gameplay.o
-	g++ build/obj/main.o build/obj/net.o build/obj/input.o build/obj/gameplay.o -o build/bin/over_the_network_tic_tac_toe
+	$(CC) $(CC_FLAGS) build/obj/main.o build/obj/net.o build/obj/input.o build/obj/gameplay.o -o build/bin/over_the_network_tic_tac_toe
 
 build/obj/main.o: src/main.cpp
 	mkdir -p build/obj
 	mkdir -p build/bin
-	g++ -c src/main.cpp -o build/obj/main.o
+	$(CC) $(CC_FLAGS) -c src/main.cpp -o build/obj/main.o
 
 build/obj/net.o: src/net.cpp
-	g++ -c src/net.cpp -o build/obj/net.o
+	$(CC) $(CC_FLAGS) -c src/net.cpp -o build/obj/net.o
 
 build/obj/input.o: src/input.cpp
-	g++ -c src/input.cpp -o build/obj/input.o
+	$(CC) $(CC_FLAGS) -c src/input.cpp -o build/obj/input.o
 
 build/obj/gameplay.o: src/gameplay.cpp
-	g++ -c src/gameplay.cpp -o build/obj/gameplay.o
+	$(CC) $(CC_FLAGS) -c src/gameplay.cpp -o build/obj/gameplay.o
 
 clean:
 	rm -fr build

src/gameplay.cpp

@@ -0,0 +1,41 @@
+#include <iostream>
+#include "gameplay.hpp"
+#include "global.hpp"
+using std::cout;
+using std::cin;
+using std::cerr;
+
+void printBoard(const std::vector<std::vector<char>>& board) {
+    cout << "\n ┌";
+    for (int i = 0; i < board_size; i++) {
+        if(i != board_size-1) {
+
+            cout << i << "┬";
+        } else {
+            cout << i << "┐";
+        }
+        }
+    cout << "\n";
+
+    for (int y = 0; y < board_size; y++) {
+        cout << y << "│";
+
+        for (int x = 0; x < board_size; x++) {
+            cout << board[x][y] << "│";
+        }
+        cout << "\n";
+
+
+
+
+    }
+    cout << " └";
+    for (int i = 0; i < board_size; i++) {
+    if(i != board_size-1) {
+
+        cout << "─┴";
+    } else {
+        cout << "─┘";
+    }
+    }
+}

src/gameplay.hpp

@@ -0,0 +1,3 @@
+#include <vector>
+
+void printBoard(const std::vector<std::vector<char>>& board);

src/global.hpp

@@ -1,5 +1,6 @@
+#include <string>
 extern int board_size;
 extern bool ishost;
 extern unsigned short port;
-extern char *serverIp;
-extern int length;
+extern int length;
+extern std::string serverIp_str;

src/input.cpp

@@ -10,6 +10,7 @@ int length;
 int board_size;
 bool ishost;
 unsigned short port;
+std::string serverIp_str;
 bool repeat = true;
 void ishost_check() {
 
@@ -102,17 +103,15 @@ void port_check() {
 
 void ip_check() {
     repeat = true;
-    std::string serverIp_temp;
 
     while(repeat) {
         cout << "enter host ip or hostname: ";
-        cin >> serverIp_temp;
-        if(serverIp_temp == "") {
+        cin >> serverIp_str;
+        if(serverIp_str == "") {
             cerr << "enter something!\n";
         } else {
 
             repeat = false;
-            const char *serverIp = serverIp_temp.c_str();
         }
     }
 }

src/main.cpp

@@ -1,8 +1,10 @@
 #include <cstddef>
 #include<iostream>
+#include <vector>
 #include"global.hpp"
 #include"net.hpp"
 #include"input.hpp"
+#include"gameplay.hpp"
 
 
 using std::cout;
@@ -40,7 +42,7 @@ int main() {
         \|__|  \|__|\|_______|                 \|__|  \|__|\|__|\|_______|                 \|__|  \|_______|\|_______| 
 )" << '\n';
 
-    int board_size;
+
 
     ishost_check();
 
@@ -62,18 +64,12 @@ int main() {
     }
 
 
-    char board[board_size*board_size];
 
 
-    int ncord = 0;
-    for (int i = 0; i < sizeof(board); i++) {
-        board[ncord] = '_';
-        ncord++;
-    }
+    //alocate board
+    std::vector<std::vector<char>> board(board_size, std::vector<char>(board_size, '_'));
 
-    if(ishost) {
-        
-    }
+    printBoard(board);
 
 
     return 0;

src/net.cpp

@@ -22,6 +22,8 @@ using std::cin;
 using std::cerr;
 using std::string;
 
+
+
 void handshake_failed() {
     cerr << "handshake failed";
     exit(3);
@@ -107,8 +109,7 @@ int init_net() {
 
         } else {
             // code for client
-
-        char *serverIp;
+           const char *serverIp = serverIp_str.c_str();
         //setup a socket and connection tools
         struct hostent* host = gethostbyname(serverIp);
         sockaddr_in sendSockAddr;

src/net.hpp

@@ -1 +1,2 @@
-extern int init_net();
+extern int init_net();
+void init_var();