1 /* $NetBSD: in_print.c,v 1.1 2014/12/02 19:35:27 christos Exp $ */
2
3 /*-
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28 #include <sys/cdefs.h>
29
30 #include <sys/types.h>
31 #ifdef _KERNEL
32 __KERNEL_RCSID(0, "$NetBSD: in_print.c,v 1.1 2014/12/02 19:35:27 christos Exp $");
33 #include <sys/systm.h>
34 #else
35 __RCSID("$NetBSD: in_print.c,v 1.1 2014/12/02 19:35:27 christos Exp $");
36 #include <stdio.h>
37 #endif
38 #include <netinet/in.h>
39
40 int
in_print(char * buf,size_t len,const struct in_addr * ia)41 in_print(char *buf, size_t len, const struct in_addr *ia)
42 {
43 const in_addr_t a = ntohl(ia->s_addr);
44 return snprintf(buf, len, "%d.%d.%d.%d",
45 (a >> 24) & 0xff, (a >> 16) & 0xff,
46 (a >> 8) & 0xff, (a >> 0) & 0xff);
47 }
48
49 int
sin_print(char * buf,size_t len,const void * v)50 sin_print(char *buf, size_t len, const void *v)
51 {
52 const struct sockaddr_in *sin = v;
53 const struct in_addr *ia = &sin->sin_addr;
54 char abuf[INET_ADDRSTRLEN];
55
56 if (!sin->sin_port)
57 return in_print(buf, len, ia);
58
59 in_print(abuf, sizeof(abuf), ia);
60 return snprintf(buf, len, "%s:%hu", abuf, ntohs(sin->sin_port));
61 }
62