2 * SPDX-License-Identifier: ISC
4 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
5 * Copyright (c) 1996,1999 by Internet Software Consortium.
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
11 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
17 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 #if defined(LIBC_SCCS) && !defined(lint)
21 static const char rcsid[] = "$Id: inet_neta.c,v 1.3 2005/04/27 04:56:20 sra Exp $";
23 #include <sys/cdefs.h>
24 __FBSDID("$FreeBSD$");
26 #include "port_before.h"
28 #include <sys/types.h>
29 #include <sys/socket.h>
30 #include <netinet/in.h>
31 #include <arpa/inet.h>
37 #include "port_after.h"
40 # define SPRINTF(x) strlen(sprintf/**/x)
42 # define SPRINTF(x) ((size_t)sprintf x)
47 * inet_neta(src, dst, size)
48 * format an in_addr_t network number into presentation format.
50 * pointer to dst, or NULL if an error occurred (check errno).
52 * format of ``src'' is as for inet_network().
54 * Paul Vixie (ISC), July 1996
57 inet_neta(in_addr_t src, char *dst, size_t size)
62 while (src & 0xffffffff) {
63 u_char b = (src & 0xff000000) >> 24;
67 if (size < sizeof "255.")
70 dst += SPRINTF((dst, "%u", b));
75 size -= (size_t)(dst - tp);
79 if (size < sizeof "0.0.0.0")
81 strcpy(dst, "0.0.0.0");
91 * Weak aliases for applications that use certain private entry points,
92 * and fail to include <arpa/inet.h>.
95 __weak_reference(__inet_neta, inet_neta);