diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..edb6674
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,9 @@
+BasedOnStyle: LLVM
+IndentWidth: 8
+UseTab: AlignWithSpaces
+BreakBeforeBraces: Linux
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortFunctionsOnASingleLine: Empty
+IndentCaseLabels: false
+ColumnLimit: 80
+AlignConsecutiveMacros: true
diff --git a/src/parsing.c b/src/parsing.c
index 7d621b1..8602e65 100644
--- a/src/parsing.c
+++ b/src/parsing.c
@@ -46,8 +46,7 @@ uint8_t parse_type(char *arg)
 		return SCAN_ALL;
 	uint8_t type = 0;
 	char *current_arg = strtok(arg, ",");
-	while (current_arg)
-	{
+	while (current_arg) {
 		if (strcmp(current_arg, "NULL") == 0)
 			type |= SCAN_NULL;
 		else if (strcmp(current_arg, "SYN") == 0)
@@ -60,9 +59,10 @@ uint8_t parse_type(char *arg)
 			type |= SCAN_XMAS;
 		else if (strcmp(current_arg, "UDP") == 0)
 			type |= SCAN_UDP;
-		else
-		{
-			dprintf(2, "ft_nmap: invalid argument to --scan: '%s'\n", arg);
+		else {
+			dprintf(2,
+			        "ft_nmap: invalid argument to --scan: '%s'\n",
+			        arg);
 			return -1;
 		}
 		current_arg = strtok(NULL, ",");
@@ -212,6 +212,7 @@ struct option_lst *parse_options(int ac, char *const *av)
 	    {"scan", required_argument, 0, 0},
 	    {"max_retries", required_argument, 0, 0},
 	    {"ttl", required_argument, 0, 0},
+	    {NULL, 0, 0, 0},
 	};
 
 	int c;
@@ -225,12 +226,13 @@ struct option_lst *parse_options(int ac, char *const *av)
 			add_option(&head, FL_FAST, optarg);
 			continue;
 		case '?':
+			free_options(head);
 			return NULL;
 		default:
 			break;
 		}
-		if (check_arg(option_index, optarg) < 0 || add_option(&head, option_index, optarg) < 0)
-		{
+		if (check_arg(option_index, optarg) < 0 ||
+		    add_option(&head, option_index, optarg) < 0) {
 			free_options(head);
 			return NULL;
 		}
@@ -254,7 +256,7 @@ int parsing(struct scan *general, const struct option_lst *options)
 		return -1;
 	}
 	general->type = parse_type(get_option_arg(options, FL_TYPE));
-	if (general->type == (uint8_t) -1)
+	if (general->type == (uint8_t)-1)
 		return -1;
 	const char *max_retries = get_option_arg(options, FL_MAXRETRIES);
 	general->max_retries = max_retries ? atoi(max_retries) : 1;