xref: /freebsd/sys/libkern/inet_ntoa.c (revision 7453645f2a9411a3f9d982b768bcc323f41cf906)
1 /*-
2  * Copyright 1994, 1995 Massachusetts Institute of Technology
3  *
4  * Permission to use, copy, modify, and distribute this software and
5  * its documentation for any purpose and without fee is hereby
6  * granted, provided that both the above copyright notice and this
7  * permission notice appear in all copies, that both the above
8  * copyright notice and this permission notice appear in all
9  * supporting documentation, and that the name of M.I.T. not be used
10  * in advertising or publicity pertaining to distribution of the
11  * software without specific, written prior permission.  M.I.T. makes
12  * no representations about the suitability of this software for any
13  * purpose.  It is provided "as is" without express or implied
14  * warranty.
15  *
16  * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
17  * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
18  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
20  * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
23  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
26  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 
36 #include <netinet/in.h>
37 
38 char *
39 inet_ntoa(struct in_addr ina)
40 {
41 	static char buf[4*sizeof "123"];
42 	unsigned char *ucp = (unsigned char *)&ina;
43 
44 	sprintf(buf, "%d.%d.%d.%d",
45 		ucp[0] & 0xff,
46 		ucp[1] & 0xff,
47 		ucp[2] & 0xff,
48 		ucp[3] & 0xff);
49 	return buf;
50 }
51 
52 char *
53 inet_ntoa_r(struct in_addr ina, char *buf)
54 {
55 	unsigned char *ucp = (unsigned char *)&ina;
56 
57 	sprintf(buf, "%d.%d.%d.%d",
58 		ucp[0] & 0xff,
59 		ucp[1] & 0xff,
60 		ucp[2] & 0xff,
61 		ucp[3] & 0xff);
62 	return buf;
63 }
64 
65 
66