From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 4 Dec 2014 03:16:29 +0000 (+0100)
Subject: rtnl: order local addresses/gateways by the address itself as last resort
X-Git-Tag: v218~119
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=00d75e5752f68a7b5d066158fdf0adffcaa9a7f2

rtnl: order local addresses/gateways by the address itself as last resort

This way we can be sure that the returned list is stable regarding
modifications in the kernel.
---

diff --git a/src/libsystemd/sd-rtnl/local-addresses.c b/src/libsystemd/sd-rtnl/local-addresses.c
index 629f89697..e520cdfa6 100644
--- a/src/libsystemd/sd-rtnl/local-addresses.c
+++ b/src/libsystemd/sd-rtnl/local-addresses.c
@@ -50,7 +50,7 @@ static int address_compare(const void *_a, const void *_b) {
         if (a->ifindex > b->ifindex)
                 return 1;
 
-        return 0;
+        return memcmp(&a->address, &b->address, FAMILY_ADDRESS_SIZE(a->family));
 }
 
 int local_addresses(sd_rtnl *context, int ifindex, int af, struct local_address **ret) {