lib/libc/inet/inet_ntoa.c

   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  * 4. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29
  30 #if defined(LIBC_SCCS) && !defined(lint)
  31 static const char sccsid[] = "@(#)inet_ntoa.c   8.1 (Berkeley) 6/4/93";
  32 static const char rcsid[] = "$Id: inet_ntoa.c,v 1.2 2005/04/27 04:56:21 sra Exp $";
  33 #endif /* LIBC_SCCS and not lint */
  34 #include <sys/cdefs.h>
  35 __FBSDID("$FreeBSD$");
  36
  37 #include "port_before.h"
  38
  39 #include <sys/types.h>
  40 #include <sys/socket.h>
  41 #include <netinet/in.h>
  42 #include <arpa/inet.h>
  43
  44 #include <stdio.h>
  45 #include <string.h>
  46
  47 #include "port_after.h"
  48
  49 /*%
  50  * Convert network-format internet address
  51  * to base 256 d.d.d.d representation.
  52  */
  53 /*const*/ char *
  54 inet_ntoa(struct in_addr in) {
  55         static char ret[18];
  56
  57         strcpy(ret, "[inet_ntoa error]");
  58         (void) inet_ntop(AF_INET, &in, ret, sizeof ret);
  59         return (ret);
  60 }
  61
  62 char *
  63 inet_ntoa_r(struct in_addr in, char *buf, socklen_t size)
  64 {
  65
  66         (void) inet_ntop(AF_INET, &in, buf, size);
  67         return (buf);
  68 }
  69
  70 /*
  71  * Weak aliases for applications that use certain private entry points,
  72  * and fail to include <arpa/inet.h>.
  73  */
  74 #undef inet_ntoa
  75 __weak_reference(__inet_ntoa, inet_ntoa);
  76 __weak_reference(__inet_ntoa_r, inet_ntoa_r);
  77
  78 /*! \file */