From: Mark Wooding <mdw@distorted.org.uk>
Date: Sat, 17 May 2014 12:50:58 +0000 (+0100)
Subject: Reinstate avoidance of pointless zero-length allocation.
X-Git-Tag: wip.base.getaddrinfo~9
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=fb35fb3719f233198513b4a1b4e364a183f068ef;p=adns.git

Reinstate avoidance of pointless zero-length allocation.

This was removed while I tested hacks to the lower-level functions.
---

diff --git a/src/types.c b/src/types.c
index 8a3fe70..56a65af 100644
--- a/src/types.c
+++ b/src/types.c
@@ -521,7 +521,7 @@ static adns_status append_addrs(adns_query qu, adns_query from, size_t rrsz,
   size_t drrsz = *dlen*rrsz, srrsz = slen*rrsz;
   byte *p;
 
-  /* if (!slen) return adns_s_ok; */
+  if (!slen) return adns_s_ok;
   p = adns__alloc_interim(qu, drrsz + srrsz);
   if (!p) R_NOMEM;
   if (*dlen) {