The Tor Browser / annotate

other-licenses/android/ns_ttl.c@6474c204b198 (annotated)

other-licenses/android/ns_ttl.c

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0 1 /* $NetBSD: ns_ttl.c,v 1.2 2004/05/20 20:35:05 christos Exp $ */
michael@0 2
michael@0 3 /*
michael@0 4 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
michael@0 5 * Copyright (c) 1996,1999 by Internet Software Consortium.
michael@0 6 *
michael@0 7 * Permission to use, copy, modify, and distribute this software for any
michael@0 8 * purpose with or without fee is hereby granted, provided that the above
michael@0 9 * copyright notice and this permission notice appear in all copies.
michael@0 10 *
michael@0 11 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
michael@0 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
michael@0 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
michael@0 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
michael@0 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
michael@0 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
michael@0 17 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
michael@0 18 */
michael@0 19
michael@0 20 /*
michael@0 21 * This version of this file is derived from Android 2.3 "Gingerbread",
michael@0 22 * which contains uncredited changes by Android/Google developers. It has
michael@0 23 * been modified in 2011 for use in the Android build of Mozilla Firefox by
michael@0 24 * Mozilla contributors (including Michael Edwards <m.k.edwards@gmail.com>,
michael@0 25 * and Steve Workman <sjhworkman@gmail.com>).
michael@0 26 * These changes are offered under the same license as the original NetBSD
michael@0 27 * file, whose copyright and license are unchanged above.
michael@0 28 */
michael@0 29
michael@0 30 #define ANDROID_CHANGES 1
michael@0 31 #define MOZILLA_NECKO_EXCLUDE_CODE 1
michael@0 32
michael@0 33 #include <sys/cdefs.h>
michael@0 34 #ifndef lint
michael@0 35 #ifdef notdef
michael@0 36 static const char rcsid[] = "Id: ns_ttl.c,v 1.1.206.1 2004/03/09 08:33:45 marka Exp";
michael@0 37 #else
michael@0 38 __RCSID("$NetBSD: ns_ttl.c,v 1.2 2004/05/20 20:35:05 christos Exp $");
michael@0 39 #endif
michael@0 40 #endif
michael@0 41
michael@0 42 /* Import. */
michael@0 43
michael@0 44 #include "arpa_nameser.h"
michael@0 45
michael@0 46 #include <ctype.h>
michael@0 47 #include <errno.h>
michael@0 48 #include <stdio.h>
michael@0 49 #include <string.h>
michael@0 50
michael@0 51 #ifdef SPRINTF_CHAR
michael@0 52 # define SPRINTF(x) strlen(sprintf/**/x)
michael@0 53 #else
michael@0 54 # define SPRINTF(x) ((size_t)sprintf x)
michael@0 55 #endif
michael@0 56
michael@0 57 /* Forward. */
michael@0 58
michael@0 59 static int fmt1(int t, char s, char **buf, size_t *buflen);
michael@0 60
michael@0 61 /* Macros. */
michael@0 62
michael@0 63 #define T(x) do { if ((x) < 0) return (-1); } while(0)
michael@0 64
michael@0 65 /* Public. */
michael@0 66
michael@0 67 int
michael@0 68 ns_format_ttl(u_long src, char *dst, size_t dstlen) {
michael@0 69 char *odst = dst;
michael@0 70 int secs, mins, hours, days, weeks, x;
michael@0 71 char *p;
michael@0 72
michael@0 73 secs = src % 60; src /= 60;
michael@0 74 mins = src % 60; src /= 60;
michael@0 75 hours = src % 24; src /= 24;
michael@0 76 days = src % 7; src /= 7;
michael@0 77 weeks = src; src = 0;
michael@0 78
michael@0 79 x = 0;
michael@0 80 if (weeks) {
michael@0 81 T(fmt1(weeks, 'W', &dst, &dstlen));
michael@0 82 x++;
michael@0 83 }
michael@0 84 if (days) {
michael@0 85 T(fmt1(days, 'D', &dst, &dstlen));
michael@0 86 x++;
michael@0 87 }
michael@0 88 if (hours) {
michael@0 89 T(fmt1(hours, 'H', &dst, &dstlen));
michael@0 90 x++;
michael@0 91 }
michael@0 92 if (mins) {
michael@0 93 T(fmt1(mins, 'M', &dst, &dstlen));
michael@0 94 x++;
michael@0 95 }
michael@0 96 if (secs || !(weeks || days || hours || mins)) {
michael@0 97 T(fmt1(secs, 'S', &dst, &dstlen));
michael@0 98 x++;
michael@0 99 }
michael@0 100
michael@0 101 if (x > 1) {
michael@0 102 int ch;
michael@0 103
michael@0 104 for (p = odst; (ch = *p) != '\0'; p++)
michael@0 105 if (isascii(ch) && isupper(ch))
michael@0 106 *p = tolower(ch);
michael@0 107 }
michael@0 108
michael@0 109 return (dst - odst);
michael@0 110 }
michael@0 111
michael@0 112 #ifndef MOZILLA_NECKO_EXCLUDE_CODE
michael@0 113 #ifndef _LIBC
michael@0 114 int
michael@0 115 ns_parse_ttl(const char *src, u_long *dst) {
michael@0 116 u_long ttl, tmp;
michael@0 117 int ch, digits, dirty;
michael@0 118
michael@0 119 ttl = 0;
michael@0 120 tmp = 0;
michael@0 121 digits = 0;
michael@0 122 dirty = 0;
michael@0 123 while ((ch = *src++) != '\0') {
michael@0 124 if (!isascii(ch) || !isprint(ch))
michael@0 125 goto einval;
michael@0 126 if (isdigit(ch)) {
michael@0 127 tmp *= 10;
michael@0 128 tmp += (ch - '0');
michael@0 129 digits++;
michael@0 130 continue;
michael@0 131 }
michael@0 132 if (digits == 0)
michael@0 133 goto einval;
michael@0 134 if (islower(ch))
michael@0 135 ch = toupper(ch);
michael@0 136 switch (ch) {
michael@0 137 case 'W': tmp *= 7; /*FALLTHROUGH*/
michael@0 138 case 'D': tmp *= 24; /*FALLTHROUGH*/
michael@0 139 case 'H': tmp *= 60; /*FALLTHROUGH*/
michael@0 140 case 'M': tmp *= 60; /*FALLTHROUGH*/
michael@0 141 case 'S': break;
michael@0 142 default: goto einval;
michael@0 143 }
michael@0 144 ttl += tmp;
michael@0 145 tmp = 0;
michael@0 146 digits = 0;
michael@0 147 dirty = 1;
michael@0 148 }
michael@0 149 if (digits > 0) {
michael@0 150 if (dirty)
michael@0 151 goto einval;
michael@0 152 else
michael@0 153 ttl += tmp;
michael@0 154 }
michael@0 155 *dst = ttl;
michael@0 156 return (0);
michael@0 157
michael@0 158 einval:
michael@0 159 errno = EINVAL;
michael@0 160 return (-1);
michael@0 161 }
michael@0 162 #endif
michael@0 163 #endif
michael@0 164
michael@0 165 /* Private. */
michael@0 166
michael@0 167 static int
michael@0 168 fmt1(int t, char s, char **buf, size_t *buflen) {
michael@0 169 char tmp[50];
michael@0 170 size_t len;
michael@0 171
michael@0 172 len = SPRINTF((tmp, "%d%c", t, s));
michael@0 173 if (len + 1 > *buflen)
michael@0 174 return (-1);
michael@0 175 strcpy(*buf, tmp);
michael@0 176 *buf += len;
michael@0 177 *buflen -= len;
michael@0 178 return (0);
michael@0 179 }

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