4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/*
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Copyright (c) 1996 by Internet Software Consortium.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Permission to use, copy, modify, and distribute this software for any
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * purpose with or without fee is hereby granted, provided that the above
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * copyright notice and this permission notice appear in all copies.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * SOFTWARE.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/*
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Portions copyright (c) 1999, 2000
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Intel Corporation.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * All rights reserved.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * Redistribution and use in source and binary forms, with or without
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * modification, are permitted provided that the following conditions
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * are met:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * 1. Redistributions of source code must retain the above copyright
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * notice, this list of conditions and the following disclaimer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * 2. Redistributions in binary form must reproduce the above copyright
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * notice, this list of conditions and the following disclaimer in the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * documentation and/or other materials provided with the distribution.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * 3. All advertising materials mentioning features or use of this software
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * must display the following acknowledgement:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * This product includes software developed by Intel Corporation and
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * its contributors.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * 4. Neither the name of Intel Corporation or its contributors may be
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * used to endorse or promote products derived from this software
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * without specific prior written permission.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION AND CONTRIBUTORS ``AS IS''
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * ARE DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR CONTRIBUTORS BE
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync * THE POSSIBILITY OF SUCH DAMAGE.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#ifndef lint
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic char rcsid[] = "$Id: ns_ttl.c,v 1.1.1.1 2003/11/19 01:51:34 kyu3 Exp $";
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#endif
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/* Import. */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <arpa/nameser.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <ctype.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <errno.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <stdio.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#include <string.h>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#define SPRINTF(x) ((size_t)sprintf x)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/* Forward. */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic int fmt1(int t, char s, char **buf, size_t *buflen);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/* Macros. */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#define T(x) if ((x) < 0) return (-1); else (void)NULL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/* Public. */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncint
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncns_format_ttl(u_long src, char *dst, size_t dstlen) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync char *odst = dst;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync int secs, mins, hours, days, weeks, x;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync char *p;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync secs = (int)(src % 60); src /= 60;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync mins = (int)(src % 60); src /= 60;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync hours = (int)(src % 24); src /= 24;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync days = (int)(src % 7); src /= 7;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync weeks = (int)src; src = 0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync x = 0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (weeks) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync T(fmt1(weeks, 'W', &dst, &dstlen));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync x++;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (days) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync T(fmt1(days, 'D', &dst, &dstlen));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync x++;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (hours) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync T(fmt1(hours, 'H', &dst, &dstlen));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync x++;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (mins) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync T(fmt1(mins, 'M', &dst, &dstlen));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync x++;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (secs || !(weeks || days || hours || mins)) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync T(fmt1(secs, 'S', &dst, &dstlen));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync x++;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (x > 1) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync int ch;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync for (p = odst; (ch = *p) != '\0'; p++)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (isascii(ch) && isupper(ch))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *p = (char)( tolower(ch));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return ((int)(dst - odst));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncint
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncns_parse_ttl(const char *src, u_long *dst) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync u_long ttl, tmp;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync int ch, digits, dirty;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ttl = 0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync tmp = 0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync digits = 0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync dirty = 0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync while ((ch = *src++) != '\0') {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (!isascii(ch) || !isprint(ch))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync goto einval;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (isdigit(ch)) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync tmp *= 10;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync tmp += (ch - '0');
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync digits++;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync continue;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (digits == 0)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync goto einval;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (islower(ch))
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ch = toupper(ch);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync switch (ch) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync case 'W': tmp *= 7;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync case 'D': tmp *= 24;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync case 'H': tmp *= 60;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync case 'M': tmp *= 60;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync case 'S': break;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync default: goto einval;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ttl += tmp;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync tmp = 0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync digits = 0;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync dirty = 1;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (digits > 0) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (dirty)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync goto einval;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync else
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ttl += tmp;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync }
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *dst = ttl;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (0);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync einval:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync errno = EINVAL;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (-1);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync/* Private. */
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncstatic int
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncfmt1(int t, char s, char **buf, size_t *buflen) {
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync char tmp[50];
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync size_t len;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync len = SPRINTF((tmp, "%d%c", t, s));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync if (len + 1 > *buflen)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (-1);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync strcpy(*buf, tmp);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *buf += len;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync *buflen -= len;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return (0);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync}