From 31afa3d8d6499d119bdf54bd37820b630c9e37e9 Mon Sep 17 00:00:00 2001
From: Joel Grunbaum <joelgrun@gmail.com>
Date: Mon, 19 Oct 2020 03:00:33 +0000
Subject: [PATCH] calculating request time as struct timespec
---
main.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 48 insertions(+), 1 deletions(-)
diff --git a/main.c b/main.c
index 1e36b9e..166394e 100644
--- a/main.c
+++ b/main.c
@@ -1,7 +1,54 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <time.h>
#include "dns.h"
int main(int argc, char** argv)
{
- resolve("google.com", "1.1.1.1", T_A, 1);
+ int option, type = T_A;
+ char* server = "1.1.1.1", *hostname = "google.com";
+ while((option = getopt(argc, argv, "s:h:t:")) != -1) {
+ switch (option) {
+ case 's': //server to use
+ server = optarg;
+ break;
+ case 'h': //hostname to search
+ hostname = optarg;
+ break;
+ case 't':
+ if (!strcmp(optarg, "A")) {
+ type = T_A;
+ } else if (!strcmp(optarg, "AAAA")) {
+ type = T_AAAA;
+ } else if (!strcmp(optarg, "NS")) {
+ type = T_NS;
+ } else if (!strcmp(optarg, "CNAME")) {
+ type = T_CNAME;
+ } else if (!strcmp(optarg, "SOA")) {
+ type = T_SOA;
+ } else if (!strcmp(optarg, "PTR")) {
+ type = T_PTR;
+ } else if (!strcmp(optarg, "MX")) {
+ type = T_MX;
+ } else if (!strcmp(optarg, "TXT")) {
+ type = T_MX;
+ } else {
+ printf("Error: %s is not a valid DNS record type\n", optarg);
+ exit(1);
+ }
+ break;
+ case '?':
+ default:
+ printf("Error: invalid option -%c\n", optopt);
+ exit(1);
+ }
+ }
+ unsigned char buf[65536];
+ struct timespec time;
+ time = resolve(buf, hostname, server, type);
+ printf("Request took %ld.%09lds\n", time.tv_sec, time.tv_nsec);
+ print_packet(buf);
return 0;
}
--
Gitblit v1.10.0