Lots of little fixes, cleared buffer, fixed some minor bugs

main.c

@@ -94,7 +94,16 @@ int main() {
 					}
 					strcat(data,"\0"); 
 
-					if (strcmp(strtok(data," \r\n"), "SENDING") == 0) {
+					buffer[0] = '\0'; /* Clear the buffer */
+
+					char* send_or_receive = malloc(10);
+					int k=0;
+					while (*(data + k) != '\n') {
+						k++;
+					}
+					memcpy(send_or_receive,data,k);
+
+					if (strstr(send_or_receive, "SENDING") != NULL) {
 						if (from_user[i] == NULL) {
 							from_user[i] = fetch_user(fetch_from_string(data,"IAM"));
 							if (from_user[i] == NULL) {
@@ -123,7 +132,7 @@ int main() {
 							return -10;
 						}	
 	
-						printf("Your message is: %s\n",message_string);
+						printf("Your message is: \n------------------\n%s\n------------------\n",message_string);
 	
 						if (user_to_index(to_user[i]) < 0) {
 							printf("Recipient user does not exist!\n");
@@ -135,7 +144,7 @@ int main() {
 	
 						printf("Message has been pushed onto stack for %s\n",to_user[i]->username);
 	
-					} else if (strcmp(strtok(buffer," \r\n"), "SENDING") == 0) {
+					} else if (strstr(send_or_receive, "RECEIVING") != NULL) {
 
                                                 if (from_user[i] == NULL) {
                                                         from_user[i] = fetch_user(fetch_from_string(data,"IAM"));
@@ -155,7 +164,7 @@ int main() {
 							printf("Invalid GET request.\n");
 							return -30;
 						} else {
-							if (strstr(num_of_messages_string,"ALL") == 0) {
+							if (strstr(num_of_messages_string,"ALL") != NULL) {
 								num_of_messages = stack_size(message_stack[user_to_index(from_user[i])]);
 							} else {
 								num_of_messages = atoi(num_of_messages_string);
@@ -166,7 +175,7 @@ int main() {
 							num_of_messages = stack_size(message_stack[user_to_index(from_user[i])]);
 						}
 							
-						for (int i=0;i<num_of_messages;i++) {
+						for (int k=0;k<num_of_messages;k++) {
 							Message* message = stack_pop(message_stack[user_to_index(from_user[i])]);
 							printf("You have a message from %s"
 								", sent at %s"
@@ -176,41 +185,34 @@ int main() {
 								message->text);
 						}
 						
-
 					} else {
 						printf("You are not sending or receiving.\n");
 					}
-
-					close(conn_sockets[i]);					
-
+					close(conn_sockets[i]);
+					conn_sockets[i] = -1;
+
+					continue_for_loop:
+					memset(data,0,DATA_SIZE);
+					memset(buffer,0,BUFFER_SIZE);
+					to_user[i] = NULL;
+					from_user[i] = NULL;
 				}
-
-
-				continue_for_loop:
-				data[0] = '\0';  /* This effectively clears the string, since the first element is null. */
-				to_user[i] = NULL;
 			}
-		}
 		
 
-	if (stop_running == true) {
-		printf("Stopping...\n");
-		for (int i=MAX_CONNECTIONS-1; i>= 0;  i--) {
-			close(i);
-			close(conn_sockets[i]);
+			if (stop_running == true) {
+				printf("Stopping...\n");
+				for (int i=MAX_CONNECTIONS-1; i>= 0;  i--) {
+					close(i);
+					close(conn_sockets[i]);
+				}
+				return 130;
+			}
+
 		}
-		return 130;
-	}
 
 
 	}
-
-//	Message message = new_message("Hello, this is a text message",users[0],users[1]);
-
-
-
-//	printf("Message was: %s\nSentfrom: %s\nSent to: %s\nWith password: %s\nSent at: %s\n",message.text, message.sender.username, message.recipient.username, message.recipient.password, asctime(&message.timeinfo));
-
 	
 }
 
@@ -242,7 +244,9 @@ User** create_user_list(char* filename) {
 }
 
 void sigint_handler(int dummy) {
-	stop_running = true;	
+	stop_running = true;
+	printf("sigint_handler is stopping...\n");
+	exit(130);
 }
 
 User* fetch_user(char* username) {