2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 #if defined(LIBC_SCCS) && !defined(lint)
37 static char sccsid[] = "@(#)inet_network.c 8.1 (Berkeley) 6/4/93";
38 #endif /* LIBC_SCCS and not lint */
40 #include <sys/types.h>
41 #include <netinet/in.h>
42 #include <arpa/inet.h>
46 * Internet network address interpretation routine.
47 * The library routines call this routine to interpret
52 register const char *cp;
54 register u_long val, base, n, i;
56 u_long parts[4], *pp = parts;
62 if (*cp == 'x' || *cp == 'X')
64 while ((c = *cp) != 0) {
65 if (isdigit((unsigned char)c)) {
66 val = (val * base) + (c - '0');
70 if (base == 16 && isxdigit((unsigned char)c)) {
71 val = (val << 4) + (c + 10 - (islower((unsigned char)c) ? 'a' : 'A'));
83 if (*cp && !isspace((unsigned char)*cp))
87 for (val = 0, i = 0; i < n; i++) {
89 val |= parts[i] & 0xff;
95 * Weak aliases for applications that use certain private entry points,
96 * and fail to include <arpa/inet.h>.
99 __weak_reference(__inet_network, inet_network);