xref: /freebsd/lib/libc/inet/inet_ntoa.c (revision fbbd9655e5107c68e4e0146ff22b73d7350475bc)
10bb263dfSXin LI /*-
265e96449SHajimu UMEMOTO  * Copyright (c) 1983, 1993
365e96449SHajimu UMEMOTO  *	The Regents of the University of California.  All rights reserved.
465e96449SHajimu UMEMOTO  *
565e96449SHajimu UMEMOTO  * Redistribution and use in source and binary forms, with or without
665e96449SHajimu UMEMOTO  * modification, are permitted provided that the following conditions
765e96449SHajimu UMEMOTO  * are met:
865e96449SHajimu UMEMOTO  * 1. Redistributions of source code must retain the above copyright
965e96449SHajimu UMEMOTO  *    notice, this list of conditions and the following disclaimer.
1065e96449SHajimu UMEMOTO  * 2. Redistributions in binary form must reproduce the above copyright
1165e96449SHajimu UMEMOTO  *    notice, this list of conditions and the following disclaimer in the
1265e96449SHajimu UMEMOTO  *    documentation and/or other materials provided with the distribution.
13*fbbd9655SWarner Losh  * 3. Neither the name of the University nor the names of its contributors
1465e96449SHajimu UMEMOTO  *    may be used to endorse or promote products derived from this software
1565e96449SHajimu UMEMOTO  *    without specific prior written permission.
1665e96449SHajimu UMEMOTO  *
1765e96449SHajimu UMEMOTO  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
1865e96449SHajimu UMEMOTO  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1965e96449SHajimu UMEMOTO  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2065e96449SHajimu UMEMOTO  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
2165e96449SHajimu UMEMOTO  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2265e96449SHajimu UMEMOTO  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2365e96449SHajimu UMEMOTO  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2465e96449SHajimu UMEMOTO  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2565e96449SHajimu UMEMOTO  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2665e96449SHajimu UMEMOTO  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2765e96449SHajimu UMEMOTO  * SUCH DAMAGE.
2865e96449SHajimu UMEMOTO  */
2965e96449SHajimu UMEMOTO 
3065e96449SHajimu UMEMOTO #if defined(LIBC_SCCS) && !defined(lint)
3165e96449SHajimu UMEMOTO static const char sccsid[] = "@(#)inet_ntoa.c	8.1 (Berkeley) 6/4/93";
32046c3635SPedro F. Giffuni static const char rcsid[] = "$Id: inet_ntoa.c,v 1.2 2005/04/27 04:56:21 sra Exp $";
3365e96449SHajimu UMEMOTO #endif /* LIBC_SCCS and not lint */
34ab96eeabSHajimu UMEMOTO #include <sys/cdefs.h>
35ab96eeabSHajimu UMEMOTO __FBSDID("$FreeBSD$");
3665e96449SHajimu UMEMOTO 
3765e96449SHajimu UMEMOTO #include "port_before.h"
3865e96449SHajimu UMEMOTO 
3965e96449SHajimu UMEMOTO #include <sys/types.h>
4065e96449SHajimu UMEMOTO #include <sys/socket.h>
4165e96449SHajimu UMEMOTO #include <netinet/in.h>
4265e96449SHajimu UMEMOTO #include <arpa/inet.h>
4365e96449SHajimu UMEMOTO 
4465e96449SHajimu UMEMOTO #include <stdio.h>
4565e96449SHajimu UMEMOTO #include <string.h>
4665e96449SHajimu UMEMOTO 
4765e96449SHajimu UMEMOTO #include "port_after.h"
4865e96449SHajimu UMEMOTO 
49dde4a85dSHajimu UMEMOTO /*%
5065e96449SHajimu UMEMOTO  * Convert network-format internet address
5165e96449SHajimu UMEMOTO  * to base 256 d.d.d.d representation.
5265e96449SHajimu UMEMOTO  */
5365e96449SHajimu UMEMOTO /*const*/ char *
5465e96449SHajimu UMEMOTO inet_ntoa(struct in_addr in) {
5565e96449SHajimu UMEMOTO 	static char ret[18];
5665e96449SHajimu UMEMOTO 
5765e96449SHajimu UMEMOTO 	strcpy(ret, "[inet_ntoa error]");
5865e96449SHajimu UMEMOTO 	(void) inet_ntop(AF_INET, &in, ret, sizeof ret);
5965e96449SHajimu UMEMOTO 	return (ret);
6065e96449SHajimu UMEMOTO }
61ab96eeabSHajimu UMEMOTO 
620c927cddSXin LI char *
630bb263dfSXin LI inet_ntoa_r(struct in_addr in, char *buf, socklen_t size)
640c927cddSXin LI {
650bb263dfSXin LI 
660bb263dfSXin LI 	(void) inet_ntop(AF_INET, &in, buf, size);
670c927cddSXin LI 	return (buf);
680c927cddSXin LI }
690c927cddSXin LI 
70ab96eeabSHajimu UMEMOTO /*
71ab96eeabSHajimu UMEMOTO  * Weak aliases for applications that use certain private entry points,
72ab96eeabSHajimu UMEMOTO  * and fail to include <arpa/inet.h>.
73ab96eeabSHajimu UMEMOTO  */
74ab96eeabSHajimu UMEMOTO #undef inet_ntoa
75ab96eeabSHajimu UMEMOTO __weak_reference(__inet_ntoa, inet_ntoa);
760c927cddSXin LI __weak_reference(__inet_ntoa_r, inet_ntoa_r);
77dde4a85dSHajimu UMEMOTO 
78dde4a85dSHajimu UMEMOTO /*! \file */
79