treewide: define and use macro IN6_IS_ADDR_ULA

[project/odhcpd.git] / src / odhcpd.h

diff --git a/src/odhcpd.h b/src/odhcpd.h
index fb78ec0..ceef0bf 100644 (file)
--- a/src/odhcpd.h
+++ b/src/odhcpd.h
@@ -57,6 +57,7 @@
 #define ALL_IPV6_ROUTERS {{{0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
                0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02}}}
 
+#define IN6_IS_ADDR_ULA(a) (((a)->s6_addr32[0] & htonl(0xfe000000)) == htonl(0xfc000000))
 
 struct interface;
 struct nl_sock;