Tried to work on fixing message string bug

main.c

@@ -16,6 +16,7 @@
 #define BUFFER_SIZE 10000
 #define MAX_CONNECTIONS 100
 #define DATA_SIZE 50000
+#define MESSAGE_SIZE 50000
 
 User** create_user_list(char* filename);
 void sigint_handler(int dummy);
@@ -80,6 +81,9 @@ int main() {
 			}
 
 			for (int i=1; i < MAX_CONNECTIONS; i++) {
+
+				memset(data,0x00,DATA_SIZE);
+
 				if (FD_ISSET(conn_sockets[i],&read_fd_set)) {
 
 					while ( strstr(buffer,"END_OF_DATA") == NULL ) {
@@ -125,8 +129,10 @@ int main() {
 								printf("Message intended for %s\n",to_user[i]->username);
 							}
 						}
-	
+
-						char* message_string = fetch_message_string(data);
+						char* message_string = malloc(sizeof(char) * MESSAGE_SIZE);	
+						memset(message_string, 0x00, MESSAGE_SIZE);
+						message_string = fetch_message_string(data);
 						if (message_string == NULL) {
 							printf("Invalid message.\n");
 							return -10;