1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 2001 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
28*0Sstevel@tonic-gate /* All Rights Reserved */
29*0Sstevel@tonic-gate
30*0Sstevel@tonic-gate /*
31*0Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988
32*0Sstevel@tonic-gate * The Regents of the University of California
33*0Sstevel@tonic-gate * All Rights Reserved
34*0Sstevel@tonic-gate *
35*0Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from
36*0Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its
37*0Sstevel@tonic-gate * contributors.
38*0Sstevel@tonic-gate */
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
41*0Sstevel@tonic-gate
42*0Sstevel@tonic-gate #include <sys/types.h>
43*0Sstevel@tonic-gate #include <ctype.h>
44*0Sstevel@tonic-gate #include <netinet/in.h>
45*0Sstevel@tonic-gate
46*0Sstevel@tonic-gate /*
47*0Sstevel@tonic-gate * Internet network address interpretation routine.
48*0Sstevel@tonic-gate * The library routines call this routine to interpret
49*0Sstevel@tonic-gate * network numbers.
50*0Sstevel@tonic-gate */
51*0Sstevel@tonic-gate in_addr_t
inet_network(const char * cp)52*0Sstevel@tonic-gate inet_network(const char *cp)
53*0Sstevel@tonic-gate {
54*0Sstevel@tonic-gate in_addr_t val;
55*0Sstevel@tonic-gate int base;
56*0Sstevel@tonic-gate ptrdiff_t n;
57*0Sstevel@tonic-gate char c;
58*0Sstevel@tonic-gate in_addr_t parts[4], *pp = parts;
59*0Sstevel@tonic-gate int i;
60*0Sstevel@tonic-gate
61*0Sstevel@tonic-gate again:
62*0Sstevel@tonic-gate val = 0; base = 10;
63*0Sstevel@tonic-gate if (*cp == '0') {
64*0Sstevel@tonic-gate if (*++cp == 'x' || *cp == 'X')
65*0Sstevel@tonic-gate base = 16, cp++;
66*0Sstevel@tonic-gate else
67*0Sstevel@tonic-gate base = 8;
68*0Sstevel@tonic-gate }
69*0Sstevel@tonic-gate while ((c = *cp) != NULL) {
70*0Sstevel@tonic-gate if (isdigit(c)) {
71*0Sstevel@tonic-gate if ((c - '0') >= base)
72*0Sstevel@tonic-gate break;
73*0Sstevel@tonic-gate val = (val * base) + (c - '0');
74*0Sstevel@tonic-gate cp++;
75*0Sstevel@tonic-gate continue;
76*0Sstevel@tonic-gate }
77*0Sstevel@tonic-gate if (base == 16 && isxdigit(c)) {
78*0Sstevel@tonic-gate val = (val << 4) + (c + 10 - (islower(c) ? 'a' : 'A'));
79*0Sstevel@tonic-gate cp++;
80*0Sstevel@tonic-gate continue;
81*0Sstevel@tonic-gate }
82*0Sstevel@tonic-gate break;
83*0Sstevel@tonic-gate }
84*0Sstevel@tonic-gate if (pp >= parts + 4 || val > 0xff)
85*0Sstevel@tonic-gate return ((in_addr_t)-1);
86*0Sstevel@tonic-gate *pp++ = val;
87*0Sstevel@tonic-gate if (*cp == '.') {
88*0Sstevel@tonic-gate cp++;
89*0Sstevel@tonic-gate goto again;
90*0Sstevel@tonic-gate }
91*0Sstevel@tonic-gate if (*cp != '\0' && !isspace(*cp))
92*0Sstevel@tonic-gate return ((in_addr_t)-1);
93*0Sstevel@tonic-gate n = pp - parts;
94*0Sstevel@tonic-gate for (val = 0, i = 0; i < n; i++) {
95*0Sstevel@tonic-gate val <<= 8;
96*0Sstevel@tonic-gate val |= parts[i];
97*0Sstevel@tonic-gate }
98*0Sstevel@tonic-gate return (val);
99*0Sstevel@tonic-gate }
100