xref: /freebsd/lib/libc/inet/inet_ntoa.c (revision 1fb62fb074788ca4713551be09d6569966a3abee)
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 */
79