From 9777e2aa772a970eb9f9c623ced9bf8102562c66 Mon Sep 17 00:00:00 2001
From: Marco d'Itri <md@linux.it>
Date: Tue, 22 Aug 2017 16:52:56 +0200
Subject: Do not request domain results for name server queries

If there is more than one dot in the query string then it can only be
a name server, so do not restrict the results to domains only.
---
 whois.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'whois.c')

diff --git a/whois.c b/whois.c
index 53829b6..365d618 100644
--- a/whois.c
+++ b/whois.c
@@ -816,11 +816,17 @@ char *query_crsnic(const int sock, const char *query)
     int hide = hide_discl;
     char *referral_server = NULL;
     int state = 0;
+    int dotscount = 0;
 
     temp = malloc(strlen("domain ") + strlen(query) + 2 + 1);
     *temp = '\0';
 
-    if (!strpbrk(query, "=~ "))
+    /* if this has more than one dot then it is a name server */
+    for (p = (char *) query; *p != '\0'; p++)
+	if (*p == '.')
+	    dotscount++;
+
+    if (dotscount == 1 && !strpbrk(query, "=~ "))
 	strcpy(temp, "domain ");
     strcat(temp, query);
     strcat(temp, "\r\n");
-- 
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