1 /*
   2  * Copyright (c) 1983, 1993
   3  *      The Regents of the University of California.  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 #include "includes.h"
  35 
  36 #if defined(BROKEN_INET_NTOA) || !defined(HAVE_INET_NTOA)
  37 
  38 #if defined(LIBC_SCCS) && !defined(lint)
  39 static char rcsid[] = "$OpenBSD: inet_ntoa.c,v 1.3 2002/06/27 10:14:01 itojun Exp $";
  40 #endif /* LIBC_SCCS and not lint */
  41 
  42 /*
  43  * Convert network-format internet address
  44  * to base 256 d.d.d.d representation.
  45  */
  46 #include <sys/types.h>
  47 #include <netinet/in.h>
  48 #include <arpa/inet.h>
  49 #include <stdio.h>
  50 #include "inet_ntoa.h"
  51 
  52 char *inet_ntoa(struct in_addr in)
  53 {
  54         static char b[18];
  55         register char *p;
  56 
  57         p = (char *)&in;
  58 #define UC(b)   (((int)b)&0xff)
  59         (void)snprintf(b, sizeof(b),
  60             "%u.%u.%u.%u", UC(p[0]), UC(p[1]), UC(p[2]), UC(p[3]));
  61         return (b);
  62 }
  63 
  64 #endif /* defined(BROKEN_INET_NTOA) || !defined(HAVE_INET_NTOA) */
  65 
  66 #pragma ident   "%Z%%M% %I%     %E% SMI"