src/types.c (append_addrs): Skip allocation and copying of empty vectors.

diff --git a/src/types.c b/src/types.c
index 66415a3941c0485ff32603a9782915e60fd769be..2eebe8de1b2175a48d1dd516ca99fd6d03304f88 100644 (file)
--- a/src/types.c
+++ b/src/types.c
@@ -518,7 +518,10 @@ static adns_status append_addrs(adns_query qu, adns_query from, size_t rrsz,
                                const adns_rr_addr *sp, int slen)
 {
   size_t drrsz = *dlen*rrsz, srrsz = slen*rrsz;
-  byte *p = adns__alloc_interim(qu, drrsz + srrsz);
+  byte *p;
+
+  /* if (!slen) return adns_s_ok; */
+  p = adns__alloc_interim(qu, drrsz + srrsz);
   if (!p) R_NOMEM;
   if (*dlen) {
     memcpy(p, *dp, drrsz);