- addresses 0.0.0.0 and ::0 really match any (#275091, comment #28)

1 files changed, 43 insertions, 0 deletions

diff --git a/bind-9.5-any.patch b/bind-9.5-any.patch
new file mode 100644
index 0000000..55e96fc
--- /dev/null
+++ b/bind-9.5-any.patch
@@ -0,0 +1,43 @@
+diff -up bind-9.5.0b3/lib/isc/netaddr.c.any bind-9.5.0b3/lib/isc/netaddr.c
+--- bind-9.5.0b3/lib/isc/netaddr.c.any	2008-05-05 22:01:29.000000000 +0200
++++ bind-9.5.0b3/lib/isc/netaddr.c	2008-05-05 22:24:52.000000000 +0200
+@@ -69,10 +69,11 @@ isc_boolean_t
+ isc_netaddr_eqprefix(const isc_netaddr_t *a, const isc_netaddr_t *b,
+ 		     unsigned int prefixlen)
+ {
+-	const unsigned char *pa, *pb;
++	const unsigned char *pa, *pb, *pany;
+ 	unsigned int ipabytes; /* Length of whole IP address in bytes */
+ 	unsigned int nbytes;   /* Number of significant whole bytes */
+ 	unsigned int nbits;    /* Number of significant leftover bits */
++	isc_netaddr_t any;     /* represents 0.0.0.0 or ::0 */
+ 
+ 	REQUIRE(a != NULL && b != NULL);
+ 
+@@ -86,11 +87,15 @@ isc_netaddr_eqprefix(const isc_netaddr_t
+ 	case AF_INET:
+ 		pa = (const unsigned char *) &a->type.in;
+ 		pb = (const unsigned char *) &b->type.in;
++		isc_netaddr_any(&any);
++		pany = (const unsigned char *) &any.type.in;
+ 		ipabytes = 4;
+ 		break;
+ 	case AF_INET6:
+ 		pa = (const unsigned char *) &a->type.in6;
+ 		pb = (const unsigned char *) &b->type.in6;
++		isc_netaddr_any6(&any);
++		pany = (const unsigned char *) &any.type.in6;
+ 		ipabytes = 16;
+ 		break;
+ 	default:
+@@ -99,6 +104,10 @@ isc_netaddr_eqprefix(const isc_netaddr_t
+ 		return (ISC_FALSE);
+ 	}
+ 
++	if (memcmp(pa, pany, ipabytes) == 0 ||
++	    memcmp(pb, pany, ipabytes) == 0)
++		return (ISC_TRUE);
++
+ 	/*
+ 	 * Don't crash if we get a pattern like 10.0.0.1/9999999.
+ 	 */