The Tor Browser: comparison other-licenses/android/res

--1:000000000000
+:c013c4164a4b
+/*	$NetBSD: res_comp.c,v 1.6 2004/05/22 23:47:09 christos Exp $	*/
+/*
+* Copyright (c) 1985, 1993
+*    The Regents of the University of California.  All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+* 1. Redistributions of source code must retain the above copyright
+*    notice, this list of conditions and the following disclaimer.
+* 2. Redistributions in binary form must reproduce the above copyright
+*    notice, this list of conditions and the following disclaimer in the
+*    documentation and/or other materials provided with the distribution.
+* 3. All advertising materials mentioning features or use of this software
+*    must display the following acknowledgement:
+* 	This product includes software developed by the University of
+* 	California, Berkeley and its contributors.
+* 4. Neither the name of the University nor the names of its contributors
+*    may be used to endorse or promote products derived from this software
+*    without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+* SUCH DAMAGE.
+*/
+/*
+* Portions Copyright (c) 1993 by Digital Equipment Corporation.
+*
+* Permission to use, copy, modify, and distribute this software for any
+* purpose with or without fee is hereby granted, provided that the above
+* copyright notice and this permission notice appear in all copies, and that
+* the name of Digital Equipment Corporation not be used in advertising or
+* publicity pertaining to distribution of the document or software without
+* specific, written prior permission.
+*
+* THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
+* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
+* OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
+* CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+* SOFTWARE.
+*/
+/*
+* Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
+* Portions Copyright (c) 1996-1999 by Internet Software Consortium.
+*
+* Permission to use, copy, modify, and distribute this software for any
+* purpose with or without fee is hereby granted, provided that the above
+* copyright notice and this permission notice appear in all copies.
+*
+* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
+* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+* MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
+* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+/*
+* This version of this file is derived from Android 2.3 "Gingerbread",
+* which contains uncredited changes by Android/Google developers.  It has
+* been modified in 2011 for use in the Android build of Mozilla Firefox by
+* Mozilla contributors (including Michael Edwards <m.k.edwards@gmail.com>,
+* and Steve Workman <sjhworkman@gmail.com>).
+* These changes are offered under the same license as the original NetBSD
+* file, whose copyright and license are unchanged above.
+*/
+#define ANDROID_CHANGES 1
+#define MOZILLA_NECKO_EXCLUDE_CODE 1
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#ifdef notdef
+static const char sccsid[] = "@(#)res_comp.c	8.1 (Berkeley) 6/4/93";
+static const char rcsid[] = "Id: res_comp.c,v 1.1.2.1.4.1 2004/03/09 08:33:54 marka Exp";
+#else
+__RCSID("$NetBSD: res_comp.c,v 1.6 2004/05/22 23:47:09 christos Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+#include <sys/types.h>
+#include <sys/param.h>
+#include <netinet/in.h>
+#include "arpa_nameser.h"
+#include <ctype.h>
+#ifdef ANDROID_CHANGES
+#include "resolv_private.h"
+#else
+#include <resolv.h>
+#endif
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+/*
+* Expand compressed domain name 'src' to full domain name.
+* 'msg' is a pointer to the begining of the message,
+* 'eom' points to the first location after the message,
+* 'dst' is a pointer to a buffer of size 'dstsiz' for the result.
+* Return size of compressed name or -1 if there was an error.
+*/
+int
+dn_expand(const u_char *msg, const u_char *eom, const u_char *src,
+	  char *dst, int dstsiz)
+{
+	int n = ns_name_uncompress(msg, eom, src, dst, (size_t)dstsiz);
+	if (n > 0 && dst[0] == '.')
+		dst[0] = '\0';
+	return (n);
+}
+/*
+* Pack domain name 'exp_dn' in presentation form into 'comp_dn'.
+* Return the size of the compressed name or -1.
+* 'length' is the size of the array pointed to by 'comp_dn'.
+*/
+int
+dn_comp(const char *src, u_char *dst, int dstsiz,
+	u_char **dnptrs, u_char **lastdnptr)
+{
+	return (ns_name_compress(src, dst, (size_t)dstsiz,
+				 (const u_char **)dnptrs,
+				 (const u_char **)lastdnptr));
+}
+/*
+* Skip over a compressed domain name. Return the size or -1.
+*/
+int
+dn_skipname(const u_char *ptr, const u_char *eom) {
+	const u_char *saveptr = ptr;
+	if (ns_name_skip(&ptr, eom) == -1)
+		return (-1);
+	return (ptr - saveptr);
+}
+/*
+* Verify that a domain name uses an acceptable character set.
+*/
+/*
+* Note the conspicuous absence of ctype macros in these definitions.  On
+* non-ASCII hosts, we can't depend on string literals or ctype macros to
+* tell us anything about network-format data.  The rest of the BIND system
+* is not careful about this, but for some reason, we're doing it right here.
+*/
+/* BIONIC: We also accept underscores in the middle of labels.
+*         This extension is needed to make resolution on some VPN networks
+*         work properly.
+*/
+#define PERIOD 0x2e
+#define	hyphenchar(c) ((c) == 0x2d)
+#define bslashchar(c) ((c) == 0x5c)
+#define periodchar(c) ((c) == PERIOD)
+#define asterchar(c) ((c) == 0x2a)
+#define alphachar(c) (((c) >= 0x41 && (c) <= 0x5a) \
+		   || ((c) >= 0x61 && (c) <= 0x7a))
+#define digitchar(c) ((c) >= 0x30 && (c) <= 0x39)
+#define underscorechar(c)  ((c) == 0x5f)
+#define borderchar(c) (alphachar(c) || digitchar(c))
+#define middlechar(c) (borderchar(c) || hyphenchar(c) || underscorechar(c))
+#define	domainchar(c) ((c) > 0x20 && (c) < 0x7f)
+int
+res_hnok(const char *dn) {
+	int pch = PERIOD, ch = *dn++;
+	while (ch != '\0') {
+		int nch = *dn++;
+		if (periodchar(ch)) {
+			;
+		} else if (periodchar(pch)) {
+			if (!borderchar(ch))
+				return (0);
+		} else if (periodchar(nch) || nch == '\0') {
+			if (!borderchar(ch))
+				return (0);
+		} else {
+			if (!middlechar(ch))
+				return (0);
+		}
+		pch = ch, ch = nch;
+	}
+	return (1);
+}
+#ifndef MOZILLA_NECKO_EXCLUDE_CODE
+/*
+* hostname-like (A, MX, WKS) owners can have "*" as their first label
+* but must otherwise be as a host name.
+*/
+int
+res_ownok(const char *dn) {
+	if (asterchar(dn[0])) {
+		if (periodchar(dn[1]))
+			return (res_hnok(dn+2));
+		if (dn[1] == '\0')
+			return (1);
+	}
+	return (res_hnok(dn));
+}
+/*
+* SOA RNAMEs and RP RNAMEs can have any printable character in their first
+* label, but the rest of the name has to look like a host name.
+*/
+int
+res_mailok(const char *dn) {
+	int ch, escaped = 0;
+	/* "." is a valid missing representation */
+	if (*dn == '\0')
+		return (1);
+	/* otherwise <label>.<hostname> */
+	while ((ch = *dn++) != '\0') {
+		if (!domainchar(ch))
+			return (0);
+		if (!escaped && periodchar(ch))
+			break;
+		if (escaped)
+			escaped = 0;
+		else if (bslashchar(ch))
+			escaped = 1;
+	}
+	if (periodchar(ch))
+		return (res_hnok(dn));
+	return (0);
+}
+/*
+* This function is quite liberal, since RFC 1034's character sets are only
+* recommendations.
+*/
+int
+res_dnok(const char *dn) {
+	int ch;
+	while ((ch = *dn++) != '\0')
+		if (!domainchar(ch))
+			return (0);
+	return (1);
+}
+#endif
+#ifdef BIND_4_COMPAT
+/*
+* This module must export the following externally-visible symbols:
+*	___putlong
+*	___putshort
+*	__getlong
+*	__getshort
+* Note that one _ comes from C and the others come from us.
+*/
+void __putlong(u_int32_t src, u_char *dst) { ns_put32(src, dst); }
+void __putshort(u_int16_t src, u_char *dst) { ns_put16(src, dst); }
+#ifndef __ultrix__
+u_int32_t _getlong(const u_char *src) { return (ns_get32(src)); }
+u_int16_t _getshort(const u_char *src) { return (ns_get16(src)); }
+#endif /*__ultrix__*/
+#endif /*BIND_4_COMPAT*/

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comparison: other-licenses/android/res_comp.c

other-licenses/android/res_comp.c