17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * Copyright (c) 1983, 1993
37c478bd9Sstevel@tonic-gate * The Regents of the University of California. All rights reserved.
47c478bd9Sstevel@tonic-gate *
57c478bd9Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without
67c478bd9Sstevel@tonic-gate * modification, are permitted provided that the following conditions
77c478bd9Sstevel@tonic-gate * are met:
87c478bd9Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright
97c478bd9Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer.
107c478bd9Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright
117c478bd9Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the
127c478bd9Sstevel@tonic-gate * documentation and/or other materials provided with the distribution.
137c478bd9Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software
147c478bd9Sstevel@tonic-gate * must display the following acknowledgement:
157c478bd9Sstevel@tonic-gate * This product includes software developed by the University of
167c478bd9Sstevel@tonic-gate * California, Berkeley and its contributors.
177c478bd9Sstevel@tonic-gate * 4. Neither the name of the University nor the names of its contributors
187c478bd9Sstevel@tonic-gate * may be used to endorse or promote products derived from this software
197c478bd9Sstevel@tonic-gate * without specific prior written permission.
207c478bd9Sstevel@tonic-gate *
217c478bd9Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
227c478bd9Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
237c478bd9Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
247c478bd9Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
257c478bd9Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
267c478bd9Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
277c478bd9Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
287c478bd9Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
297c478bd9Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
307c478bd9Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
317c478bd9Sstevel@tonic-gate * SUCH DAMAGE.
327c478bd9Sstevel@tonic-gate */
337c478bd9Sstevel@tonic-gate
347c478bd9Sstevel@tonic-gate #if defined(LIBC_SCCS) && !defined(lint)
357c478bd9Sstevel@tonic-gate static const char sccsid[] = "@(#)inet_network.c 8.1 (Berkeley) 6/4/93";
367c478bd9Sstevel@tonic-gate #endif /* LIBC_SCCS and not lint */
377c478bd9Sstevel@tonic-gate
387c478bd9Sstevel@tonic-gate #include "port_before.h"
397c478bd9Sstevel@tonic-gate
407c478bd9Sstevel@tonic-gate #include <sys/types.h>
417c478bd9Sstevel@tonic-gate #include <netinet/in.h>
427c478bd9Sstevel@tonic-gate #include <arpa/inet.h>
437c478bd9Sstevel@tonic-gate #include <ctype.h>
447c478bd9Sstevel@tonic-gate
457c478bd9Sstevel@tonic-gate #include "port_after.h"
467c478bd9Sstevel@tonic-gate
47*9525b14bSRao Shoaib /*%
487c478bd9Sstevel@tonic-gate * Internet network address interpretation routine.
497c478bd9Sstevel@tonic-gate * The library routines call this routine to interpret
507c478bd9Sstevel@tonic-gate * network numbers.
517c478bd9Sstevel@tonic-gate */
527c478bd9Sstevel@tonic-gate u_long
inet_network(cp)537c478bd9Sstevel@tonic-gate inet_network(cp)
547c478bd9Sstevel@tonic-gate register const char *cp;
557c478bd9Sstevel@tonic-gate {
567c478bd9Sstevel@tonic-gate register u_long val, base, n, i;
577c478bd9Sstevel@tonic-gate register char c;
587c478bd9Sstevel@tonic-gate u_long parts[4], *pp = parts;
597c478bd9Sstevel@tonic-gate int digit;
607c478bd9Sstevel@tonic-gate
617c478bd9Sstevel@tonic-gate again:
627c478bd9Sstevel@tonic-gate val = 0; base = 10; digit = 0;
637c478bd9Sstevel@tonic-gate if (*cp == '0')
647c478bd9Sstevel@tonic-gate digit = 1, base = 8, cp++;
657c478bd9Sstevel@tonic-gate if (*cp == 'x' || *cp == 'X')
667c478bd9Sstevel@tonic-gate base = 16, cp++;
677c478bd9Sstevel@tonic-gate while ((c = *cp) != 0) {
687c478bd9Sstevel@tonic-gate if (isdigit((unsigned char)c)) {
69*9525b14bSRao Shoaib if (base == 8U && (c == '8' || c == '9'))
707c478bd9Sstevel@tonic-gate return (INADDR_NONE);
717c478bd9Sstevel@tonic-gate val = (val * base) + (c - '0');
727c478bd9Sstevel@tonic-gate cp++;
737c478bd9Sstevel@tonic-gate digit = 1;
747c478bd9Sstevel@tonic-gate continue;
757c478bd9Sstevel@tonic-gate }
76*9525b14bSRao Shoaib if (base == 16U && isxdigit((unsigned char)c)) {
777c478bd9Sstevel@tonic-gate val = (val << 4) +
787c478bd9Sstevel@tonic-gate (c + 10 - (islower((unsigned char)c) ? 'a' : 'A'));
797c478bd9Sstevel@tonic-gate cp++;
807c478bd9Sstevel@tonic-gate digit = 1;
817c478bd9Sstevel@tonic-gate continue;
827c478bd9Sstevel@tonic-gate }
837c478bd9Sstevel@tonic-gate break;
847c478bd9Sstevel@tonic-gate }
857c478bd9Sstevel@tonic-gate if (!digit)
867c478bd9Sstevel@tonic-gate return (INADDR_NONE);
87*9525b14bSRao Shoaib if (pp >= parts + 4 || val > 0xffU)
887c478bd9Sstevel@tonic-gate return (INADDR_NONE);
897c478bd9Sstevel@tonic-gate if (*cp == '.') {
907c478bd9Sstevel@tonic-gate *pp++ = val, cp++;
917c478bd9Sstevel@tonic-gate goto again;
927c478bd9Sstevel@tonic-gate }
937c478bd9Sstevel@tonic-gate if (*cp && !isspace(*cp&0xff))
947c478bd9Sstevel@tonic-gate return (INADDR_NONE);
957c478bd9Sstevel@tonic-gate *pp++ = val;
967c478bd9Sstevel@tonic-gate n = pp - parts;
97*9525b14bSRao Shoaib if (n > 4U)
987c478bd9Sstevel@tonic-gate return (INADDR_NONE);
997c478bd9Sstevel@tonic-gate for (val = 0, i = 0; i < n; i++) {
1007c478bd9Sstevel@tonic-gate val <<= 8;
1017c478bd9Sstevel@tonic-gate val |= parts[i] & 0xff;
1027c478bd9Sstevel@tonic-gate }
1037c478bd9Sstevel@tonic-gate return (val);
1047c478bd9Sstevel@tonic-gate }
105*9525b14bSRao Shoaib
106*9525b14bSRao Shoaib /*! \file */
107