X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fnetwork%2Fnetworkd-address.c;h=34863b2f69ab8507412abc4e491cd01e29e3209c;hb=9505d3c6deda0452c22ab2ed47bca74b98d87a17;hp=e6e3f8f06788bff8f58abb36fe7b19345ea3d398;hpb=3d3d425547a3f38473fcf8737b85dfebb630479d;p=elogind.git

diff --git a/src/network/networkd-address.c b/src/network/networkd-address.c
index e6e3f8f06..34863b2f6 100644
--- a/src/network/networkd-address.c
+++ b/src/network/networkd-address.c
@@ -313,7 +313,8 @@ int config_parse_dns(const char *unit,
                 const char *rvalue,
                 void *data,
                 void *userdata) {
-        Set **dns = data;
+        Network *network = userdata;
+        Address *tail;
         _cleanup_address_free_ Address *n = NULL;
         int r;
 
@@ -321,7 +322,7 @@ int config_parse_dns(const char *unit,
         assert(section);
         assert(lvalue);
         assert(rvalue);
-        assert(data);
+        assert(network);
 
         r = address_new_dynamic(&n);
         if (r < 0)
@@ -334,7 +335,8 @@ int config_parse_dns(const char *unit,
                 return 0;
         }
 
-        set_put(*dns, n);
+        LIST_FIND_TAIL(addresses, network->dns, tail);
+        LIST_INSERT_AFTER(addresses, network->dns, tail, n);
         n = NULL;
 
         return 0;
@@ -506,3 +508,46 @@ int config_parse_label(const char *unit,
 
         return 0;
 }
+
+bool address_equal(Address *a1, Address *a2) {
+        /* same object */
+        if (a1 == a2)
+                return true;
+
+        /* one, but not both, is NULL */
+        if (!a1 || !a2)
+                return false;
+
+        if (a1->family != a2->family)
+                return false;
+
+        switch (a1->family) {
+        /* use the same notion of equality as the kernel does */
+        case AF_UNSPEC:
+                return true;
+
+        case AF_INET:
+                if (a1->prefixlen != a2->prefixlen)
+                        return false;
+                else {
+                        uint32_t b1, b2;
+
+                        b1 = be32toh(a1->in_addr.in.s_addr);
+                        b2 = be32toh(a2->in_addr.in.s_addr);
+
+                        return (b1 >> (32 - a1->prefixlen)) == (b2 >> (32 - a1->prefixlen));
+                }
+
+        case AF_INET6:
+        {
+                uint64_t *b1, *b2;
+
+                b1 = (uint64_t*)&a1->in_addr.in6;
+                b2 = (uint64_t*)&a2->in_addr.in6;
+
+                return (((b1[0] ^ b2[0]) | (b1[1] ^ b2[1])) == 0UL);
+        }
+        default:
+                assert_not_reached("Invalid address family");
+        }
+}