# 2.11BSD#431 - /usr/src/lib/libc/inet/inet_netof.c

##### Functions

    inet_netof        X

       1: /*
       2:  * Copyright (c) 1983 Regents of the University of California.
       3:  * All rights reserved.
       4:  *
       5:  * Redistribution and use in source and binary forms, with or without
       6:  * modification, are permitted provided that the following conditions
       7:  * are met:
       8:  * 1. Redistributions of source code must retain the above copyright
       9:  *    notice, this list of conditions and the following disclaimer.
      10:  * 2. Redistributions in binary form must reproduce the above copyright
      11:  *    notice, this list of conditions and the following disclaimer in the
      12:  *    documentation and/or other materials provided with the distribution.
      13:  * 3. All advertising materials mentioning features or use of this software
      14:  *    must display the following acknowledgement:
      15:  *	This product includes software developed by the University of
      16:  *	California, Berkeley and its contributors.
      17:  * 4. Neither the name of the University nor the names of its contributors
      18:  *    may be used to endorse or promote products derived from this software
      19:  *    without specific prior written permission.
      20:  *
      21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
      22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
      25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      31:  * SUCH DAMAGE.
      32:  */
      33:
      34: #if defined(LIBC_SCCS) && !defined(lint)
      35: static char sccsid[] = "@(#)inet_netof.c	5.7 (Berkeley) 2/24/91";
      36: #endif /* LIBC_SCCS and not lint */
      37:
      38: #include <sys/param.h>
      39: #include <netinet/in.h>
      40: #include <arpa/inet.h>
      41:
      42: /*
      43:  * Return the network number from an internet
      44:  * address; handles class a/b/c network #'s.
      45:  */
      46: u_long
      47: inet_netof(in)
      48:     struct in_addr in;
      49: {
      50:     u_long i = ntohl(in.s_addr);
      51:
      52:     if (IN_CLASSA(i))
      53:         return (((i)&IN_CLASSA_NET) >> IN_CLASSA_NSHIFT);
      54:     else if (IN_CLASSB(i))
      55:         return (((i)&IN_CLASSB_NET) >> IN_CLASSB_NSHIFT);
      56:     else
      57:         return (((i)&IN_CLASSC_NET) >> IN_CLASSC_NSHIFT);
      58: }

#### Defined functions

inet_netof defined in line 46; used 20 times

- in /usr/include/arpa/inet.h line 28
- in /usr/src/games/hunt/hunt.c line 393-394(2)
- in /usr/src/include/arpa/inet.h line 28
- in /usr/src/new/crash/dispnet.c line 837
- in /usr/src/new/crash/inet.c line 379
- in /usr/src/new/nntp/server/access_inet.c line 57
- in /usr/src/new/nntp/server/subnet.c line 91, 137, 200-202(2)
- in /usr/src/sbin/routed/tools/query.c line 172
- in /usr/src/ucb/PORT/systat/netstat.c line 359
- in /usr/src/ucb/netstat/inet.c line 393
- in /usr/src/usr.sbin/htable/htable.c line 196, 205, 220, 231, 252, 274

#### Defined variables

sccsid defined in line 35; never used

Last modified: 1994-02-12 Generated: 2016-12-26 | Generated by src2html V0.67 page hit count: 1050 |