17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate * with the License.
87c478bd9Sstevel@tonic-gate *
97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate * and limitations under the License.
137c478bd9Sstevel@tonic-gate *
147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate *
207c478bd9Sstevel@tonic-gate * CDDL HEADER END
217c478bd9Sstevel@tonic-gate */
227c478bd9Sstevel@tonic-gate /*
237c478bd9Sstevel@tonic-gate * Copyright 2001 Sun Microsystems, Inc. All rights reserved.
247c478bd9Sstevel@tonic-gate * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
277c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
288a7aa2a5SYuri Pankov /* All Rights Reserved */
297c478bd9Sstevel@tonic-gate
307c478bd9Sstevel@tonic-gate /*
317c478bd9Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988
327c478bd9Sstevel@tonic-gate * The Regents of the University of California
337c478bd9Sstevel@tonic-gate * All Rights Reserved
347c478bd9Sstevel@tonic-gate *
357c478bd9Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from
367c478bd9Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its
377c478bd9Sstevel@tonic-gate * contributors.
387c478bd9Sstevel@tonic-gate */
397c478bd9Sstevel@tonic-gate
408a7aa2a5SYuri Pankov #include "lint.h"
417c478bd9Sstevel@tonic-gate
427c478bd9Sstevel@tonic-gate #include <sys/types.h>
438a7aa2a5SYuri Pankov
447c478bd9Sstevel@tonic-gate #include <netinet/in.h>
457c478bd9Sstevel@tonic-gate
468a7aa2a5SYuri Pankov #include <ctype.h>
478a7aa2a5SYuri Pankov
487c478bd9Sstevel@tonic-gate /*
497c478bd9Sstevel@tonic-gate * Internet network address interpretation routine.
507c478bd9Sstevel@tonic-gate * The library routines call this routine to interpret
517c478bd9Sstevel@tonic-gate * network numbers.
527c478bd9Sstevel@tonic-gate */
537c478bd9Sstevel@tonic-gate in_addr_t
inet_network(const char * cp)547c478bd9Sstevel@tonic-gate inet_network(const char *cp)
557c478bd9Sstevel@tonic-gate {
567c478bd9Sstevel@tonic-gate in_addr_t val;
577c478bd9Sstevel@tonic-gate int base;
587c478bd9Sstevel@tonic-gate ptrdiff_t n;
597c478bd9Sstevel@tonic-gate char c;
607c478bd9Sstevel@tonic-gate in_addr_t parts[4], *pp = parts;
617c478bd9Sstevel@tonic-gate int i;
627c478bd9Sstevel@tonic-gate
637c478bd9Sstevel@tonic-gate again:
647c478bd9Sstevel@tonic-gate val = 0; base = 10;
657c478bd9Sstevel@tonic-gate if (*cp == '0') {
667c478bd9Sstevel@tonic-gate if (*++cp == 'x' || *cp == 'X')
677c478bd9Sstevel@tonic-gate base = 16, cp++;
687c478bd9Sstevel@tonic-gate else
697c478bd9Sstevel@tonic-gate base = 8;
707c478bd9Sstevel@tonic-gate }
71*e86c3f00SToomas Soome while ((c = *cp) != '\0') {
727c478bd9Sstevel@tonic-gate if (isdigit(c)) {
737c478bd9Sstevel@tonic-gate if ((c - '0') >= base)
748a7aa2a5SYuri Pankov break;
757c478bd9Sstevel@tonic-gate val = (val * base) + (c - '0');
767c478bd9Sstevel@tonic-gate cp++;
777c478bd9Sstevel@tonic-gate continue;
787c478bd9Sstevel@tonic-gate }
797c478bd9Sstevel@tonic-gate if (base == 16 && isxdigit(c)) {
807c478bd9Sstevel@tonic-gate val = (val << 4) + (c + 10 - (islower(c) ? 'a' : 'A'));
817c478bd9Sstevel@tonic-gate cp++;
827c478bd9Sstevel@tonic-gate continue;
837c478bd9Sstevel@tonic-gate }
847c478bd9Sstevel@tonic-gate break;
857c478bd9Sstevel@tonic-gate }
867c478bd9Sstevel@tonic-gate if (pp >= parts + 4 || val > 0xff)
877c478bd9Sstevel@tonic-gate return ((in_addr_t)-1);
887c478bd9Sstevel@tonic-gate *pp++ = val;
897c478bd9Sstevel@tonic-gate if (*cp == '.') {
907c478bd9Sstevel@tonic-gate cp++;
917c478bd9Sstevel@tonic-gate goto again;
927c478bd9Sstevel@tonic-gate }
937c478bd9Sstevel@tonic-gate if (*cp != '\0' && !isspace(*cp))
947c478bd9Sstevel@tonic-gate return ((in_addr_t)-1);
957c478bd9Sstevel@tonic-gate n = pp - parts;
967c478bd9Sstevel@tonic-gate for (val = 0, i = 0; i < n; i++) {
977c478bd9Sstevel@tonic-gate val <<= 8;
987c478bd9Sstevel@tonic-gate val |= parts[i];
997c478bd9Sstevel@tonic-gate }
1007c478bd9Sstevel@tonic-gate return (val);
1017c478bd9Sstevel@tonic-gate }
102