about summary refs log tree commit diff
path: root/src
diff options
context:
space:
mode:
Diffstat (limited to 'src')
-rw-r--r--src/network/res_mkquery.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/network/res_mkquery.c b/src/network/res_mkquery.c
index 33f50cb9..614bf786 100644
--- a/src/network/res_mkquery.c
+++ b/src/network/res_mkquery.c
@@ -13,6 +13,7 @@ int __res_mkquery(int op, const char *dname, int class, int type,
 	int n;
 
 	if (l && dname[l-1]=='.') l--;
+	if (l && dname[l-1]=='.') return -1;
 	n = 17+l+!!l;
 	if (l>253 || buflen<n || op>15u || class>255u || type>255u)
 		return -1;