xref: /titanic_50/usr/src/lib/libast/common/string/fmtip4.c (revision 3e14f97f673e8a630f076077de35afdd43dc1587)
1da2e3ebdSchin /***********************************************************************
2da2e3ebdSchin *                                                                      *
3da2e3ebdSchin *               This software is part of the ast package               *
4*3e14f97fSRoger A. Faulkner *          Copyright (c) 1985-2010 AT&T Intellectual Property          *
5da2e3ebdSchin *                      and is licensed under the                       *
6da2e3ebdSchin *                  Common Public License, Version 1.0                  *
77c2fbfb3SApril Chin *                    by AT&T Intellectual Property                     *
8da2e3ebdSchin *                                                                      *
9da2e3ebdSchin *                A copy of the License is available at                 *
10da2e3ebdSchin *            http://www.opensource.org/licenses/cpl1.0.txt             *
11da2e3ebdSchin *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12da2e3ebdSchin *                                                                      *
13da2e3ebdSchin *              Information and Software Systems Research               *
14da2e3ebdSchin *                            AT&T Research                             *
15da2e3ebdSchin *                           Florham Park NJ                            *
16da2e3ebdSchin *                                                                      *
17da2e3ebdSchin *                 Glenn Fowler <gsf@research.att.com>                  *
18da2e3ebdSchin *                  David Korn <dgk@research.att.com>                   *
19da2e3ebdSchin *                   Phong Vo <kpv@research.att.com>                    *
20da2e3ebdSchin *                                                                      *
21da2e3ebdSchin ***********************************************************************/
22da2e3ebdSchin #pragma prototyped
23da2e3ebdSchin 
24da2e3ebdSchin #include <ast.h>
25da2e3ebdSchin 
26da2e3ebdSchin /*
27da2e3ebdSchin  * format 4 byte local byte order ip address
28da2e3ebdSchin  * and optional prefix bits (if 0 <= bits <= 32)
29da2e3ebdSchin  */
30da2e3ebdSchin 
31da2e3ebdSchin char*
fmtip4(register uint32_t addr,int bits)32da2e3ebdSchin fmtip4(register uint32_t addr, int bits)
33da2e3ebdSchin {
34da2e3ebdSchin 	char*	buf;
35da2e3ebdSchin 	int	z;
36da2e3ebdSchin 	int	i;
37da2e3ebdSchin 
38da2e3ebdSchin 	buf = fmtbuf(z = 20);
39da2e3ebdSchin 	i = sfsprintf(buf, z, "%d.%d.%d.%d", (addr>>24)&0xff, (addr>>16)&0xff, (addr>>8)&0xff, (addr)&0xff);
40da2e3ebdSchin 	if (bits >= 0 && bits <= 32)
41da2e3ebdSchin 		sfsprintf(buf + i, z - i, "/%d", bits);
42da2e3ebdSchin 	return buf;
43da2e3ebdSchin }
44