mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-11-20 10:16:34 +01:00
26 lines
430 B
C
26 lines
430 B
C
|
/*
|
||
|
|
* netof - return the net address part of an ip address
|
||
|
|
* (zero out host part)
|
||
|
|
*/
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
#include "ntp_fp.h"
|
||
|
|
#include "ntp_stdlib.h"
|
||
|
|
|
||
|
|
U_LONG
|
||
|
|
netof(num)
|
||
|
|
U_LONG num;
|
||
|
|
{
|
||
|
|
register U_LONG netnum;
|
||
|
|
|
||
|
|
netnum = num;
|
||
|
|
|
||
|
|
if(IN_CLASSC(netnum))
|
||
|
|
netnum &= IN_CLASSC_NET;
|
||
|
|
else if (IN_CLASSB(netnum))
|
||
|
|
netnum &= IN_CLASSB_NET;
|
||
|
|
else /* treat als other like class A */
|
||
|
|
netnum &= IN_CLASSA_NET;
|
||
|
|
return netnum;
|
||
|
|
}
|