1 /* inet_makeaddr.c 4.3 82/11/14 */ 2 3 #include <sys/types.h> 4 #include <netinet/in.h> 5 6 /* 7 * Formulate an Internet address from network + host. Used in 8 * building addresses stored in the ifnet structure. 9 */ 10 struct in_addr 11 inet_makeaddr(net, host) 12 int net, host; 13 { 14 u_long addr; 15 16 if (net < 128) 17 addr = (net << IN_CLASSA_NSHIFT) | host; 18 else if (net < 65536) 19 addr = (net << IN_CLASSB_NSHIFT) | host; 20 else 21 addr = (net << IN_CLASSC_NSHIFT) | host; 22 addr = htonl(addr); 23 return (*(struct in_addr *)&addr); 24 } 25