-#define INADDR_BROADCAST 0xffffffff
-
-/*
- * Macros for subnetworks. A subnet is distinguished by
- * (1) the network number is a `local' network number, and
- * (2) the most significant bit of the host part is set.
- * Such addresses include one additional byte in the network number,
- * and use one less byte in the host part (i.e., a subnet of a Class A
- * network uses the rules for Class B net/host number extraction,
- * a Class B subnet is dealt with as if it were a Class C net).
- * Subnets of Class C nets are not supported.
- */
-#define SUBNETSHIFT 8 /* used to get main net number from subnet */
-
-#define IN_SUBNETA(i) ((((long)(i))&0x80800000)==0x00800000)
-#define IN_CLASSA_SUBNET 0xffff0000
-#define IN_CLASSA_SUBNSHIFT (IN_CLASSA_NSHIFT - SUBNETSHIFT)
-#define IN_CLASSA_SUBHOST 0x0000ffff
-
-#define IN_SUBNETB(i) ((((long)(i))&0xc0008000)==0x80008000)
-#define IN_CLASSB_SUBNET 0xffffff00
-#define IN_CLASSB_SUBNSHIFT (IN_CLASSB_NSHIFT - SUBNETSHIFT)
-#define IN_CLASSA_SUBHOST 0x0000ffff
-#define IN_CLASSB_SUBHOST 0x000000ff