From 978865da2f5d5a587c2f8accf3e1bb3b0193e1fd Mon Sep 17 00:00:00 2001
From: Michael Brown
Date: Sun, 23 Mar 2008 22:20:47 +0000
Subject: [IPv4] Use default netmasks when no subnet mask is specified.

---
 src/include/gpxe/in.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'src/include/gpxe')

diff --git a/src/include/gpxe/in.h b/src/include/gpxe/in.h
index d502c4c31..89530a559 100644
--- a/src/include/gpxe/in.h
+++ b/src/include/gpxe/in.h
@@ -18,7 +18,13 @@
 
 #define INADDR_BROADCAST 0xffffffff
 
-#define IN_MULTICAST(addr) ( ( (addr) & 0xf0000000 ) == 0xe0000000 )
+#define	IN_CLASSA(addr)		( ( (addr) & 0x80000000 ) == 0x00000000 )
+#define	IN_CLASSA_NET		0xff000000
+#define	IN_CLASSB(addr)		( ( (addr) & 0xc0000000 ) == 0x80000000 )
+#define	IN_CLASSB_NET		0xffff0000
+#define	IN_CLASSC(addr)		( ( (addr) & 0xe0000000 ) == 0xc0000000 )
+#define	IN_CLASSC_NET		0xffffff00
+#define IN_MULTICAST(addr)	( ( (addr) & 0xf0000000 ) == 0xe0000000 )
 
 /**
  * IP address structure
-- 
cgit v1.2.3-55-g7522