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-rw-r--r--lib/ip.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/ip.h b/lib/ip.h
index 5dc9191..e9923e2 100644
--- a/lib/ip.h
+++ b/lib/ip.h
@@ -50,6 +50,10 @@ struct prefix {
};
#define ip_is_prefix(a,l) (!ipa_nonzero(ipa_and(a, ipa_not(ipa_mkmask(l)))))
+#define ipa_zero(x) (!ipa_nonzero(x))
+
+static inline int ipa_classify_net(ip_addr a)
+{ return ipa_zero(a) ? (IADDR_HOST | SCOPE_UNIVERSE) : ipa_classify(a); }
/*
* Conversions between internal and string representation