The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/net/net_osdep.c

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    1 /*      $FreeBSD$       */
    2 /*      $KAME: net_osdep.c,v 1.9 2001/04/06 09:22:05 itojun Exp $       */
    3 
    4 /*
    5  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 3. Neither the name of the project nor the names of its contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
   24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30  * SUCH DAMAGE.
   31  */
   32 
   33 #include <sys/param.h>
   34 #include <sys/systm.h>
   35 #include <sys/kernel.h>
   36 #include <sys/mbuf.h>
   37 #include <sys/socket.h>
   38 #include <sys/sockio.h>
   39 #include <sys/errno.h>
   40 #include <sys/time.h>
   41 #include <sys/syslog.h>
   42 #include <machine/cpu.h>
   43 
   44 #include <net/if.h>
   45 #include <net/if_types.h>
   46 #include <net/netisr.h>
   47 #include <net/route.h>
   48 #include <net/bpf.h>
   49 
   50 #include <net/net_osdep.h>
   51 
   52 const char *
   53 if_name(ifp)
   54         struct ifnet *ifp;
   55 {
   56 #define MAXNUMBUF       8
   57         static char nam[MAXNUMBUF][IFNAMSIZ + 10];      /*enough?*/
   58         static int ifbufround = 0;
   59         char *cp;
   60 
   61         ifbufround = (ifbufround + 1) % MAXNUMBUF;
   62         cp = nam[ifbufround];
   63 
   64         snprintf(cp, IFNAMSIZ + 10, "%s%d", ifp->if_name, ifp->if_unit);
   65         return((const char *)cp);
   66 #undef MAXNUMBUF
   67 }

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