nslookup: fix output corruption for "nslookup 1.2.3.4"

function                                             old     new   delta
nslookup_main                                       1832    1837      +5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/networking/nslookup.c b/networking/nslookup.c
index feeec15aa..92e07e8b1 100644
--- a/networking/nslookup.c
+++ b/networking/nslookup.c
@@ -797,11 +797,9 @@ int nslookup_main(int argc UNUSED_PARAM, char **argv)
                         char buf80[80];
 
                         ptr = make_ptr(buf80, *argv);
-
                         if (ptr) {
-                                add_query(&queries, &n_queries, T_PTR, ptr);
-                        }
-                        else {
+                                add_query(&queries, &n_queries, T_PTR, xstrdup(ptr));
+                        } else {
                                 add_query(&queries, &n_queries, T_A, *argv);
 #if ENABLE_FEATURE_IPV6
                                 add_query(&queries, &n_queries, T_AAAA, *argv);