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https://bugs.gentoo.org/700108
--- sendmail-8.15.2-r1/libmilter/sm_gethost.c.orig 2014-03-04 19:59:45.000000000 -0500
+++ sendmail-8.15.2-r1/libmilter/sm_gethost.c 2019-11-15 09:32:25.812406080 -0500
@@ -51,18 +51,21 @@
{
bool resv6 = true;
struct hostent *h;
-
+#ifdef RES_USE_INET6
if (family == AF_INET6)
{
/* From RFC2133, section 6.1 */
resv6 = bitset(RES_USE_INET6, _res.options);
_res.options |= RES_USE_INET6;
}
+#endif
SM_SET_H_ERRNO(0);
h = gethostbyname(name);
+#ifdef RES_USE_INET6
if (family == AF_INET6 && !resv6)
_res.options &= ~RES_USE_INET6;
+#endif
/* the function is supposed to return only the requested family */
if (h != NULL && h->h_addrtype != family)
{
--- sendmail-8.15.2-r2/sendmail/conf.c.orig 2019-11-14 17:36:41.262218822 -0500
+++ sendmail-8.15.2-r2/sendmail/conf.c 2019-11-15 09:57:43.550284580 -0500
@@ -4243,18 +4243,21 @@
# else /* HAS_GETHOSTBYNAME2 */
bool resv6 = true;
-
+#ifdef RES_USE_INET6
if (family == AF_INET6)
{
/* From RFC2133, section 6.1 */
resv6 = bitset(RES_USE_INET6, _res.options);
_res.options |= RES_USE_INET6;
}
+#endif
SM_SET_H_ERRNO(0);
h = gethostbyname(name);
+#ifdef RES_USE_INET6
if (!resv6)
_res.options &= ~RES_USE_INET6;
+#endif
/* the function is supposed to return only the requested family */
if (h != NULL && h->h_addrtype != family)
{
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