@@ -, +, @@ 
  @@ -272,9 +272,9 @@ enum nss_status _nss_mdns_gethostbyname4_r(
         // Copy address
         memcpy(&(tuple->addr), &(u.data.result[i].address), address_length);
         if(address_length < sizeof(ipv6_address_t)) {
             memset((&(tuple->addr) + address_length - sizeof(ipv6_address_t)), 0,
                 (sizeof(ipv6_address_t) - address_length)
             );
         }
  struct gaih_addrtuple {
    ...
    uint32_t addr[4];
    ...
  };
  ==12732== Invalid write of size 1
  ==12732==    at 0x4C11A29: memset (vg_replace_strmem.c:1239)
  ==12732==    by 0x57FA348: _nss_mdns_minimal_gethostbyname4_r (nss.c:292)
  ==12732==    by 0x4F016D8: gaih_inet.constprop.7 (getaddrinfo.c:806)
  ==12732==    by 0x4F02673: getaddrinfo (getaddrinfo.c:2317)
  ==12732==    by 0x4800B3B: main (a.c:34)
    hosts:       files mdns_minimal [NOTFOUND=return] dns
---
 src/nss.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)
--- a/src/nss.c	
+++ a/src/nss.c	
@@ -271,12 +271,8 @@ enum nss_status _nss_mdns_gethostbyname4_r(
         tuple->family = u.data.result[i].af;
 
         // Copy address
+        memset(&(tuple->addr), 0, sizeof(ipv6_address_t));
         memcpy(&(tuple->addr), &(u.data.result[i].address), address_length);
-        if(address_length < sizeof(ipv6_address_t)) {
-            memset((&(tuple->addr) + address_length - sizeof(ipv6_address_t)), 0,
-                (sizeof(ipv6_address_t) - address_length)
-            );
-        }
 
         // Assign interface scope id
         tuple->scopeid = u.data.result[i].scopeid;
--