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-rw-r--r--lib/ipv4.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/ipv4.h b/lib/ipv4.h
index 74f1e88..f258d37 100644
--- a/lib/ipv4.h
+++ b/lib/ipv4.h
@@ -56,7 +56,8 @@ typedef u32 ip_addr;
#define ipa_ntoh(x) x = _MI(ntohl(_I(x)))
#define ipa_classify(x) ipv4_classify(_I(x))
#define ipa_has_link_scope(x) ipv4_has_link_scope(_I(x))
-#define ipa_opposite(x,len) _MI(_I(x) ^ (len == 30 ? 3 : 1))
+#define ipa_opposite_m1(x) _MI(_I(x) ^ 1)
+#define ipa_opposite_m2(x) _MI(_I(x) ^ 3)
#define ipa_class_mask(x) _MI(ipv4_class_mask(_I(x)))
#define ipa_from_u32(x) _MI(x)
#define ipa_to_u32(x) _I(x)