[unix-history] / usr / src / lib / libc / net / inet_makeaddr.c

/*	inet_makeaddr.c	4.3	82/11/14	*/

#include <sys/types.h>
#include <netinet/in.h>

/*
 * Formulate an Internet address from network + host.  Used in
 * building addresses stored in the ifnet structure.
 */
struct in_addr
inet_makeaddr(net, host)
	int net, host;
{
	u_long addr;

	if (net < 128)
		addr = (net << IN_CLASSA_NSHIFT) | host;
	else if (net < 65536)
		addr = (net << IN_CLASSB_NSHIFT) | host;
	else
		addr = (net << IN_CLASSC_NSHIFT) | host;
	addr = htonl(addr);
	return (*(struct in_addr *)&addr);
}
Commit	Line	Data
056d5bbd	1	/* inet_makeaddr.c 4.3 82/11/14 */
9b8667c0 SL	2
9b8667c0 SL	3	#include <sys/types.h>
056d5bbd	4	#include <netinet/in.h>
9b8667c0 SL	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
3a3b7ace	11	inet_makeaddr(net, host)
9b8667c0 SL	12	int net, host;
	13	{
	14	u_long addr;
	15
	16	if (net < 128)
056d5bbd	17	addr = (net << IN_CLASSA_NSHIFT) \| host;
9b8667c0	18	else if (net < 65536)
056d5bbd	19	addr = (net << IN_CLASSB_NSHIFT) \| host;
9b8667c0	20	else
056d5bbd	21	addr = (net << IN_CLASSC_NSHIFT) \| host;
9b8667c0 SL	22	addr = htonl(addr);
	23	return ((struct in_addr )&addr);
	24	}