xref: /titanic_41/usr/src/lib/libbc/libc/inet/inet_ntoa.c (revision 8e50dcc9f00b393d43e6aa42b820bcbf1d3e1ce4)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 1987 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 	 /* from UCB 4.1 83/06/12 */
29 
30 /*
31  * Convert network-format internet address
32  * to base 256 d.d.d.d representation.
33  */
34 #include <sys/types.h>
35 #include <netinet/in.h>
36 
37 char *
38 inet_ntoa(in)
39 	struct in_addr in;
40 {
41 	static char b[18];
42 	register char *p;
43 
44 	p = (char *)&in;
45 #define	UC(b)	(((int)b)&0xff)
46 	sprintf(b, "%d.%d.%d.%d", UC(p[0]), UC(p[1]), UC(p[2]), UC(p[3]));
47 	return (b);
48 }
49