clean: add ttl and max_retries in usage print

include/dns.h

@@ -2,6 +2,5 @@
 
 #include <netinet/in.h>
 
-int dns_lookup(char *ip_addr, const char *hostname,
-               struct sockaddr_in *addr_con);
+int dns_lookup(char *ip_addr, const char *hostname);
 int reverse_dns_lookup(char *ip_addr, char *host);

src/dns.c

@@ -6,8 +6,7 @@
 #include <string.h>
 #include <sys/socket.h>
 
-int dns_lookup(char *ip_addr, const char *hostname,
-               struct sockaddr_in *addr_con)
+int dns_lookup(char *ip_addr, const char *hostname)
 {
 	struct hostent *host = gethostbyname2(hostname, AF_INET);
 	if (!host) {
@@ -17,9 +16,6 @@ int dns_lookup(char *ip_addr, const char *hostname,
 		return -1;
 	}
 	strcpy(ip_addr, inet_ntoa(*(struct in_addr *)host->h_addr));
-	(*addr_con).sin_family = host->h_addrtype;
-	(*addr_con).sin_port = htons(0);
-	(*addr_con).sin_addr.s_addr = *(long *)host->h_addr;
 
 	return 0;
 }

src/main.c

@@ -16,8 +16,7 @@
 
 static int scan_host(struct scan *general, uint8_t nb_threads)
 {
-	struct sockaddr_in addr_con;
-	if (dns_lookup(general->dest_addr, general->dest_addr, &addr_con)) {
+	if (dns_lookup(general->dest_addr, general->dest_addr)) {
 		return -1;
 	}
 
@@ -52,6 +51,7 @@ int main(int ac, char **av)
 	}
 
 	if (option_isset(options, FL_HELP)) {
+		free_options(options);
 		print_usage();
 		return 0;
 	}

src/print.c

@@ -14,6 +14,9 @@ void print_usage(void)
 	printf("--file: File name containing IP addresses to scan\n");
 	printf("--speedup: [250 max] number of parallel threads to use\n");
 	printf("--scan: NULL/SYN/FIN/XMAS/ACK/UDP\n");
+	printf("--max_retries: number of retries when host doesn't reply\n");
+	printf("--ttl: precise the ttl\n");
+	
 }
 
 void print_config(const struct scan *general, const char *hosts_path,