xref: /xnu-11215.81.4/libkern/net/inet_ntoa.c (revision d4514f0bc1d3f944c22d92e68b646ac3fb40d452)
1*d4514f0bSApple OSS Distributions /*-
2*d4514f0bSApple OSS Distributions  * Copyright 1994, 1995 Massachusetts Institute of Technology
3*d4514f0bSApple OSS Distributions  *
4*d4514f0bSApple OSS Distributions  * Permission to use, copy, modify, and distribute this software and
5*d4514f0bSApple OSS Distributions  * its documentation for any purpose and without fee is hereby
6*d4514f0bSApple OSS Distributions  * granted, provided that both the above copyright notice and this
7*d4514f0bSApple OSS Distributions  * permission notice appear in all copies, that both the above
8*d4514f0bSApple OSS Distributions  * copyright notice and this permission notice appear in all
9*d4514f0bSApple OSS Distributions  * supporting documentation, and that the name of M.I.T. not be used
10*d4514f0bSApple OSS Distributions  * in advertising or publicity pertaining to distribution of the
11*d4514f0bSApple OSS Distributions  * software without specific, written prior permission.  M.I.T. makes
12*d4514f0bSApple OSS Distributions  * no representations about the suitability of this software for any
13*d4514f0bSApple OSS Distributions  * purpose.  It is provided "as is" without express or implied
14*d4514f0bSApple OSS Distributions  * warranty.
15*d4514f0bSApple OSS Distributions  *
16*d4514f0bSApple OSS Distributions  * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
17*d4514f0bSApple OSS Distributions  * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
18*d4514f0bSApple OSS Distributions  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19*d4514f0bSApple OSS Distributions  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
20*d4514f0bSApple OSS Distributions  * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21*d4514f0bSApple OSS Distributions  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22*d4514f0bSApple OSS Distributions  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
23*d4514f0bSApple OSS Distributions  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24*d4514f0bSApple OSS Distributions  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25*d4514f0bSApple OSS Distributions  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
26*d4514f0bSApple OSS Distributions  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27*d4514f0bSApple OSS Distributions  * SUCH DAMAGE.
28*d4514f0bSApple OSS Distributions  */
29*d4514f0bSApple OSS Distributions #include <sys/param.h>
30*d4514f0bSApple OSS Distributions #include <sys/systm.h>
31*d4514f0bSApple OSS Distributions 
32*d4514f0bSApple OSS Distributions #include <netinet/in.h>
33*d4514f0bSApple OSS Distributions 
34*d4514f0bSApple OSS Distributions char *
inet_ntoa(struct in_addr ina)35*d4514f0bSApple OSS Distributions inet_ntoa(struct in_addr ina)
36*d4514f0bSApple OSS Distributions {
37*d4514f0bSApple OSS Distributions 	static char buf[4 * sizeof "123"];
38*d4514f0bSApple OSS Distributions 	unsigned char *ucp = (unsigned char *)&ina;
39*d4514f0bSApple OSS Distributions 
40*d4514f0bSApple OSS Distributions 	snprintf(buf, sizeof(buf), "%d.%d.%d.%d",
41*d4514f0bSApple OSS Distributions 	    ucp[0] & 0xff,
42*d4514f0bSApple OSS Distributions 	    ucp[1] & 0xff,
43*d4514f0bSApple OSS Distributions 	    ucp[2] & 0xff,
44*d4514f0bSApple OSS Distributions 	    ucp[3] & 0xff);
45*d4514f0bSApple OSS Distributions 	return buf;
46*d4514f0bSApple OSS Distributions }
47*d4514f0bSApple OSS Distributions 
48*d4514f0bSApple OSS Distributions char *
inet_ntoa_r(struct in_addr ina,char * buf,size_t buflen)49*d4514f0bSApple OSS Distributions inet_ntoa_r(struct in_addr ina, char *buf, size_t buflen)
50*d4514f0bSApple OSS Distributions {
51*d4514f0bSApple OSS Distributions 	unsigned char *ucp = (unsigned char *)&ina;
52*d4514f0bSApple OSS Distributions 
53*d4514f0bSApple OSS Distributions 	snprintf(buf, buflen, "%d.%d.%d.%d",
54*d4514f0bSApple OSS Distributions 	    ucp[0] & 0xff,
55*d4514f0bSApple OSS Distributions 	    ucp[1] & 0xff,
56*d4514f0bSApple OSS Distributions 	    ucp[2] & 0xff,
57*d4514f0bSApple OSS Distributions 	    ucp[3] & 0xff);
58*d4514f0bSApple OSS Distributions 	return buf;
59*d4514f0bSApple OSS Distributions }
60