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expat 2021-05-23 (a28238bd)

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Code extracted from:

    https://github.com/libexpat/libexpat.git

at commit a28238bdeebc087071777001245df1876a11f5ee (R_2_4_1).
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Expat Upstream authored and Brad King committed 2021-05-24 11:38:34 -04:00
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README.md
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@@ -1,12 +1,14 @@
[![Travis CI Build Status](https://travis-ci.org/libexpat/libexpat.svg?branch=master)](https://travis-ci.org/libexpat/libexpat)
[![Run Linux Travis CI tasks](https://github.com/libexpat/libexpat/actions/workflows/linux.yml/badge.svg)](https://github.com/libexpat/libexpat/actions/workflows/linux.yml)
[![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/github/libexpat/libexpat?svg=true)](https://ci.appveyor.com/project/libexpat/libexpat)
[![Packaging status](https://repology.org/badge/tiny-repos/expat.svg)](https://repology.org/metapackage/expat/versions)
[![Downloads SourceForge](https://img.shields.io/sourceforge/dt/expat?label=Downloads%20SourceForge)](https://sourceforge.net/projects/expat/files/)
[![Downloads GitHub](https://img.shields.io/github/downloads/libexpat/libexpat/total?label=Downloads%20GitHub)](https://github.com/libexpat/libexpat/releases)
# Expat, Release 2.2.10
# Expat, Release 2.4.1
This is Expat, a C library for parsing XML, started by
[James Clark](https://en.wikipedia.org/wiki/James_Clark_(programmer)) in 1997.
[James Clark](https://en.wikipedia.org/wiki/James_Clark_%28programmer%29) in 1997.
Expat is a stream-oriented XML parser. This means that you register
handlers with the parser before starting the parse. These handlers
are called when the parser discovers the associated structures in the
@@ -14,13 +16,14 @@ document being parsed. A start tag is an example of the kind of
structures for which you may register handlers.
Expat supports the following compilers:
- GNU GCC >=4.5
- LLVM Clang >=3.5
- Microsoft Visual Studio >=9.0/2008
- Microsoft Visual Studio >=15.0/2017 (rolling `${today} minus 5 years`)
Windows users can use the
[`expat_win32` package](https://sourceforge.net/projects/expat/files/expat_win32/),
which includes both precompiled libraries and executables, and source code for
[`expat-win32bin-*.*.*.{exe,zip}` download](https://github.com/libexpat/libexpat/releases),
which includes both pre-compiled libraries and executables, and source code for
developers.
Expat is [free software](https://www.gnu.org/philosophy/free-sw.en.html).
@@ -30,6 +33,67 @@ contained in the file
distributed with this package.
This license is the same as the MIT/X Consortium license.
## Using libexpat in your CMake-Based Project
There are two ways of using libexpat with CMake:
### a) Module Mode
This approach leverages CMake's own [module `FindEXPAT`](https://cmake.org/cmake/help/latest/module/FindEXPAT.html).
Notice the *uppercase* `EXPAT` in the following example:
```cmake
cmake_minimum_required(VERSION 3.0) # or 3.10, see below
project(hello VERSION 1.0.0)
find_package(EXPAT 2.2.8 MODULE REQUIRED)
add_executable(hello
hello.c
)
# a) for CMake >=3.10 (see CMake's FindEXPAT docs)
target_link_libraries(hello PUBLIC EXPAT::EXPAT)
# b) for CMake >=3.0
target_include_directories(hello PRIVATE ${EXPAT_INCLUDE_DIRS})
target_link_libraries(hello PUBLIC ${EXPAT_LIBRARIES})
```
### b) Config Mode
This approach requires files from…
- libexpat >=2.2.8 where packaging uses the CMake build system
or
- libexpat >=2.3.0 where packaging uses the GNU Autotools build system
on Linux
or
- libexpat >=2.4.0 where packaging uses the GNU Autotools build system
on macOS or MinGW.
Notice the *lowercase* `expat` in the following example:
```cmake
cmake_minimum_required(VERSION 3.0)
project(hello VERSION 1.0.0)
find_package(expat 2.2.8 CONFIG REQUIRED char dtd ns)
add_executable(hello
hello.c
)
target_link_libraries(hello PUBLIC expat::expat)
```
## Building from a Git Clone
If you are building Expat from a check-out from the
[Git repository](https://github.com/libexpat/libexpat/),
you need to run a script that generates the configure script using the
@@ -43,6 +107,11 @@ autoconf 2.58 or newer. Run the script like this:
Once this has been done, follow the same instructions as for building
from a source distribution.
## Building from a Source Distribution
### a) Building with the configure script (i.e. GNU Autotools)
To build Expat from a source distribution, you first run the
configuration shell script in the top level distribution directory:
@@ -132,8 +201,14 @@ A reference manual is available in the file `doc/reference.html` in this
distribution.
The CMake build system is still *experimental* and will replace the primary
### b) Building with CMake
The CMake build system is still *experimental* and may replace the primary
build system based on GNU Autotools at some point when it is ready.
#### Available Options
For an idea of the available (non-advanced) options for building with CMake:
```console
lib/ascii.h
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@@ -6,8 +6,11 @@
\___/_/\_\ .__/ \__,_|\__|
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 1999-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2002 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
Copyright (c) 2007 Karl Waclawek <karl@waclawek.net>
Copyright (c) 2017 Sebastian Pipping <sebastian@pipping.org>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
lib/asciitab.h
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@@ -7,7 +7,9 @@
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2002 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
Copyright (c) 2017 Sebastian Pipping <sebastian@pipping.org>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
lib/expat.h
+32 -6
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@@ -7,7 +7,14 @@
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2000-2005 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
Copyright (c) 2001-2002 Greg Stein <gstein@users.sourceforge.net>
Copyright (c) 2002-2016 Karl Waclawek <karl@waclawek.net>
Copyright (c) 2016-2021 Sebastian Pipping <sebastian@pipping.org>
Copyright (c) 2016 Cristian Rodríguez <crrodriguez@opensuse.org>
Copyright (c) 2016 Thomas Beutlich <tc@tbeu.de>
Copyright (c) 2017 Rhodri James <rhodri@wildebeest.org.uk>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
@@ -115,7 +122,11 @@ enum XML_Error {
XML_ERROR_RESERVED_PREFIX_XMLNS,
XML_ERROR_RESERVED_NAMESPACE_URI,
/* Added in 2.2.1. */
XML_ERROR_INVALID_ARGUMENT
XML_ERROR_INVALID_ARGUMENT,
/* Added in 2.3.0. */
XML_ERROR_NO_BUFFER,
/* Added in 2.4.0. */
XML_ERROR_AMPLIFICATION_LIMIT_BREACH
};
enum XML_Content_Type {
@@ -513,7 +524,7 @@ typedef struct {
Otherwise it must return XML_STATUS_ERROR.
If info does not describe a suitable encoding, then the parser will
return an XML_UNKNOWN_ENCODING error.
return an XML_ERROR_UNKNOWN_ENCODING error.
*/
typedef int(XMLCALL *XML_UnknownEncodingHandler)(void *encodingHandlerData,
const XML_Char *name,
@@ -997,7 +1008,10 @@ enum XML_FeatureEnum {
XML_FEATURE_SIZEOF_XML_LCHAR,
XML_FEATURE_NS,
XML_FEATURE_LARGE_SIZE,
XML_FEATURE_ATTR_INFO
XML_FEATURE_ATTR_INFO,
/* Added in Expat 2.4.0. */
XML_FEATURE_BILLION_LAUGHS_ATTACK_PROTECTION_MAXIMUM_AMPLIFICATION_DEFAULT,
XML_FEATURE_BILLION_LAUGHS_ATTACK_PROTECTION_ACTIVATION_THRESHOLD_DEFAULT
/* Additional features must be added to the end of this enum. */
};
@@ -1010,12 +1024,24 @@ typedef struct {
XMLPARSEAPI(const XML_Feature *)
XML_GetFeatureList(void);
#ifdef XML_DTD
/* Added in Expat 2.4.0. */
XMLPARSEAPI(XML_Bool)
XML_SetBillionLaughsAttackProtectionMaximumAmplification(
XML_Parser parser, float maximumAmplificationFactor);
/* Added in Expat 2.4.0. */
XMLPARSEAPI(XML_Bool)
XML_SetBillionLaughsAttackProtectionActivationThreshold(
XML_Parser parser, unsigned long long activationThresholdBytes);
#endif
/* Expat follows the semantic versioning convention.
See http://semver.org.
*/
#define XML_MAJOR_VERSION 2
#define XML_MINOR_VERSION 2
#define XML_MICRO_VERSION 10
#define XML_MINOR_VERSION 4
#define XML_MICRO_VERSION 1
#ifdef __cplusplus
}
lib/expat_external.h
+8 -1
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@@ -7,7 +7,14 @@
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2000-2004 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
Copyright (c) 2001-2002 Greg Stein <gstein@users.sourceforge.net>
Copyright (c) 2002-2006 Karl Waclawek <karl@waclawek.net>
Copyright (c) 2016 Cristian Rodríguez <crrodriguez@opensuse.org>
Copyright (c) 2016-2019 Sebastian Pipping <sebastian@pipping.org>
Copyright (c) 2017 Rhodri James <rhodri@wildebeest.org.uk>
Copyright (c) 2018 Yury Gribov <tetra2005@gmail.com>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
lib/iasciitab.h
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@@ -7,7 +7,9 @@
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2002 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
Copyright (c) 2017 Sebastian Pipping <sebastian@pipping.org>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
lib/internal.h
+49 -9
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@@ -25,8 +25,12 @@
\___/_/\_\ .__/ \__,_|\__|
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2002-2003 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
Copyright (c) 2002-2006 Karl Waclawek <karl@waclawek.net>
Copyright (c) 2003 Greg Stein <gstein@users.sourceforge.net>
Copyright (c) 2016-2021 Sebastian Pipping <sebastian@pipping.org>
Copyright (c) 2018 Yury Gribov <tetra2005@gmail.com>
Copyright (c) 2019 David Loffredo <loffredo@steptools.com>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
@@ -101,22 +105,58 @@
# endif
#endif
#include <limits.h> // ULONG_MAX
#if defined(_WIN32) && ! defined(__USE_MINGW_ANSI_STDIO)
# define EXPAT_FMT_ULL(midpart) "%" midpart "I64u"
# if defined(_WIN64) // Note: modifiers "td" and "zu" do not work for MinGW
# define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "I64d"
# define EXPAT_FMT_SIZE_T(midpart) "%" midpart "I64u"
# else
# define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "d"
# define EXPAT_FMT_SIZE_T(midpart) "%" midpart "u"
# endif
#else
# define EXPAT_FMT_ULL(midpart) "%" midpart "llu"
# if ! defined(ULONG_MAX)
# error Compiler did not define ULONG_MAX for us
# elif ULONG_MAX == 18446744073709551615u // 2^64-1
# define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "ld"
# define EXPAT_FMT_SIZE_T(midpart) "%" midpart "lu"
# else
# define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "d"
# define EXPAT_FMT_SIZE_T(midpart) "%" midpart "u"
# endif
#endif
#ifndef UNUSED_P
# define UNUSED_P(p) (void)p
#endif
/* NOTE BEGIN If you ever patch these defaults to greater values
for non-attack XML payload in your environment,
please file a bug report with libexpat. Thank you!
*/
#define EXPAT_BILLION_LAUGHS_ATTACK_PROTECTION_MAXIMUM_AMPLIFICATION_DEFAULT \
100.0f
#define EXPAT_BILLION_LAUGHS_ATTACK_PROTECTION_ACTIVATION_THRESHOLD_DEFAULT \
8388608 // 8 MiB, 2^23
/* NOTE END */
#include "expat.h" // so we can use type XML_Parser below
#ifdef __cplusplus
extern "C" {
#endif
#ifdef XML_ENABLE_VISIBILITY
# if XML_ENABLE_VISIBILITY
__attribute__((visibility("default")))
# endif
void _INTERNAL_trim_to_complete_utf8_characters(const char *from,
const char **fromLimRef);
#if defined(XML_DTD)
unsigned long long testingAccountingGetCountBytesDirect(XML_Parser parser);
unsigned long long testingAccountingGetCountBytesIndirect(XML_Parser parser);
const char *unsignedCharToPrintable(unsigned char c);
#endif
void
_INTERNAL_trim_to_complete_utf8_characters(const char *from,
const char **fromLimRef);
#ifdef __cplusplus
}
lib/latin1tab.h
+3 -1
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@@ -7,7 +7,9 @@
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2002 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
Copyright (c) 2017 Sebastian Pipping <sebastian@pipping.org>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
lib/nametab.h
+2 -2
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@@ -6,8 +6,8 @@
\___/_/\_\ .__/ \__,_|\__|
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2017 Sebastian Pipping <sebastian@pipping.org>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
lib/siphash.h
+4 -9
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@@ -11,6 +11,9 @@
* --------------------------------------------------------------------------
* HISTORY:
*
* 2020-10-03 (Sebastian Pipping)
* - Drop support for Visual Studio 9.0/2008 and earlier
*
* 2019-08-03 (Sebastian Pipping)
* - Mark part of sip24_valid as to be excluded from clang-format
* - Re-format code using clang-format 9
@@ -96,15 +99,7 @@
#define SIPHASH_H
#include <stddef.h> /* size_t */
#if defined(_WIN32) && defined(_MSC_VER) && (_MSC_VER < 1600)
/* For vs2003/7.1 up to vs2008/9.0; _MSC_VER 1600 is vs2010/10.0 */
typedef unsigned __int8 uint8_t;
typedef unsigned __int32 uint32_t;
typedef unsigned __int64 uint64_t;
#else
# include <stdint.h> /* uint64_t uint32_t uint8_t */
#endif
#include <stdint.h> /* uint64_t uint32_t uint8_t */
/*
* Workaround to not require a C++11 compiler for using ULL suffix
lib/utf8tab.h
+3 -1
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@@ -7,7 +7,9 @@
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2002 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
Copyright (c) 2017 Sebastian Pipping <sebastian@pipping.org>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
lib/winconfig.h
+4 -15
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@@ -6,8 +6,10 @@
\___/_/\_\ .__/ \__,_|\__|
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2002 Greg Stein <gstein@users.sourceforge.net>
Copyright (c) 2005 Karl Waclawek <karl@waclawek.net>
Copyright (c) 2017-2021 Sebastian Pipping <sebastian@pipping.org>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
@@ -40,17 +42,4 @@
#include <memory.h>
#include <string.h>
#if defined(HAVE_EXPAT_CONFIG_H) /* e.g. MinGW */
# include <expat_config.h>
#else /* !defined(HAVE_EXPAT_CONFIG_H) */
# define XML_NS 1
# define XML_DTD 1
# define XML_CONTEXT_BYTES 1024
/* we will assume all Windows platforms are little endian */
# define BYTEORDER 1234
#endif /* !defined(HAVE_EXPAT_CONFIG_H) */
#endif /* ndef WINCONFIG_H */
lib/xmlparse.c
+1144 -78
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@@ -1,4 +1,4 @@
/* 5cd169f2942b85c05e0b1b96f9990f91ac3d07e470ad7ce906ac8590c8ed4f35 (2.2.10+)
/* 8539b9040d9d901366a62560a064af7cb99811335784b363abc039c5b0ebc416 (2.4.1+)
__ __ _
___\ \/ /_ __ __ _| |_
/ _ \\ /| '_ \ / _` | __|
@@ -7,7 +7,31 @@
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2000-2006 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
Copyright (c) 2001-2002 Greg Stein <gstein@users.sourceforge.net>
Copyright (c) 2002-2016 Karl Waclawek <karl@waclawek.net>
Copyright (c) 2005-2009 Steven Solie <ssolie@users.sourceforge.net>
Copyright (c) 2016 Eric Rahm <erahm@mozilla.com>
Copyright (c) 2016-2021 Sebastian Pipping <sebastian@pipping.org>
Copyright (c) 2016 Gaurav <g.gupta@samsung.com>
Copyright (c) 2016 Thomas Beutlich <tc@tbeu.de>
Copyright (c) 2016 Gustavo Grieco <gustavo.grieco@imag.fr>
Copyright (c) 2016 Pascal Cuoq <cuoq@trust-in-soft.com>
Copyright (c) 2016 Ed Schouten <ed@nuxi.nl>
Copyright (c) 2017-2018 Rhodri James <rhodri@wildebeest.org.uk>
Copyright (c) 2017 Václav Slavík <vaclav@slavik.io>
Copyright (c) 2017 Viktor Szakats <commit@vsz.me>
Copyright (c) 2017 Chanho Park <chanho61.park@samsung.com>
Copyright (c) 2017 Rolf Eike Beer <eike@sf-mail.de>
Copyright (c) 2017 Hans Wennborg <hans@chromium.org>
Copyright (c) 2018 Anton Maklakov <antmak.pub@gmail.com>
Copyright (c) 2018 Benjamin Peterson <benjamin@python.org>
Copyright (c) 2018 Marco Maggi <marco.maggi-ipsu@poste.it>
Copyright (c) 2018 Mariusz Zaborski <oshogbo@vexillium.org>
Copyright (c) 2019 David Loffredo <loffredo@steptools.com>
Copyright (c) 2019-2020 Ben Wagner <bungeman@chromium.org>
Copyright (c) 2019 Vadim Zeitlin <vadim@zeitlins.org>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
@@ -47,17 +71,8 @@
#include <limits.h> /* UINT_MAX */
#include <stdio.h> /* fprintf */
#include <stdlib.h> /* getenv, rand_s */
#if defined(_WIN32) && defined(_MSC_VER) && (_MSC_VER < 1600)
/* vs2008/9.0 and earlier lack stdint.h; _MSC_VER 1600 is vs2010/10.0 */
# if defined(_WIN64)
typedef unsigned __int64 uintptr_t;
# else
typedef unsigned __int32 uintptr_t;
# endif
#else
# include <stdint.h> /* uintptr_t */
#endif
#include <stdint.h> /* uintptr_t */
#include <math.h> /* isnan */
#ifdef _WIN32
# define getpid GetCurrentProcessId
@@ -73,9 +88,9 @@ typedef unsigned __int32 uintptr_t;
#ifdef _WIN32
# include "winconfig.h"
#elif defined(HAVE_EXPAT_CONFIG_H)
# include <expat_config.h>
#endif /* ndef _WIN32 */
#endif
#include <expat_config.h>
#include "ascii.h"
#include "expat.h"
@@ -382,6 +397,31 @@ typedef struct open_internal_entity {
XML_Bool betweenDecl; /* WFC: PE Between Declarations */
} OPEN_INTERNAL_ENTITY;
enum XML_Account {
XML_ACCOUNT_DIRECT, /* bytes directly passed to the Expat parser */
XML_ACCOUNT_ENTITY_EXPANSION, /* intermediate bytes produced during entity
expansion */
XML_ACCOUNT_NONE /* i.e. do not account, was accounted already */
};
#ifdef XML_DTD
typedef unsigned long long XmlBigCount;
typedef struct accounting {
XmlBigCount countBytesDirect;
XmlBigCount countBytesIndirect;
int debugLevel;
float maximumAmplificationFactor; // >=1.0
unsigned long long activationThresholdBytes;
} ACCOUNTING;
typedef struct entity_stats {
unsigned int countEverOpened;
unsigned int currentDepth;
unsigned int maximumDepthSeen;
int debugLevel;
} ENTITY_STATS;
#endif /* XML_DTD */
typedef enum XML_Error PTRCALL Processor(XML_Parser parser, const char *start,
const char *end, const char **endPtr);
@@ -412,16 +452,18 @@ static enum XML_Error initializeEncoding(XML_Parser parser);
static enum XML_Error doProlog(XML_Parser parser, const ENCODING *enc,
const char *s, const char *end, int tok,
const char *next, const char **nextPtr,
XML_Bool haveMore, XML_Bool allowClosingDoctype);
XML_Bool haveMore, XML_Bool allowClosingDoctype,
enum XML_Account account);
static enum XML_Error processInternalEntity(XML_Parser parser, ENTITY *entity,
XML_Bool betweenDecl);
static enum XML_Error doContent(XML_Parser parser, int startTagLevel,
const ENCODING *enc, const char *start,
const char *end, const char **endPtr,
XML_Bool haveMore);
XML_Bool haveMore, enum XML_Account account);
static enum XML_Error doCdataSection(XML_Parser parser, const ENCODING *,
const char **startPtr, const char *end,
const char **nextPtr, XML_Bool haveMore);
const char **nextPtr, XML_Bool haveMore,
enum XML_Account account);
#ifdef XML_DTD
static enum XML_Error doIgnoreSection(XML_Parser parser, const ENCODING *,
const char **startPtr, const char *end,
@@ -431,7 +473,8 @@ static enum XML_Error doIgnoreSection(XML_Parser parser, const ENCODING *,
static void freeBindings(XML_Parser parser, BINDING *bindings);
static enum XML_Error storeAtts(XML_Parser parser, const ENCODING *,
const char *s, TAG_NAME *tagNamePtr,
BINDING **bindingsPtr);
BINDING **bindingsPtr,
enum XML_Account account);
static enum XML_Error addBinding(XML_Parser parser, PREFIX *prefix,
const ATTRIBUTE_ID *attId, const XML_Char *uri,
BINDING **bindingsPtr);
@@ -440,15 +483,18 @@ static int defineAttribute(ELEMENT_TYPE *type, ATTRIBUTE_ID *, XML_Bool isCdata,
XML_Parser parser);
static enum XML_Error storeAttributeValue(XML_Parser parser, const ENCODING *,
XML_Bool isCdata, const char *,
const char *, STRING_POOL *);
const char *, STRING_POOL *,
enum XML_Account account);
static enum XML_Error appendAttributeValue(XML_Parser parser, const ENCODING *,
XML_Bool isCdata, const char *,
const char *, STRING_POOL *);
const char *, STRING_POOL *,
enum XML_Account account);
static ATTRIBUTE_ID *getAttributeId(XML_Parser parser, const ENCODING *enc,
const char *start, const char *end);
static int setElementTypePrefix(XML_Parser parser, ELEMENT_TYPE *);
static enum XML_Error storeEntityValue(XML_Parser parser, const ENCODING *enc,
const char *start, const char *end);
const char *start, const char *end,
enum XML_Account account);
static int reportProcessingInstruction(XML_Parser parser, const ENCODING *enc,
const char *start, const char *end);
static int reportComment(XML_Parser parser, const ENCODING *enc,
@@ -512,6 +558,34 @@ static XML_Parser parserCreate(const XML_Char *encodingName,
static void parserInit(XML_Parser parser, const XML_Char *encodingName);
#ifdef XML_DTD
static float accountingGetCurrentAmplification(XML_Parser rootParser);
static void accountingReportStats(XML_Parser originParser, const char *epilog);
static void accountingOnAbort(XML_Parser originParser);
static void accountingReportDiff(XML_Parser rootParser,
unsigned int levelsAwayFromRootParser,
const char *before, const char *after,
ptrdiff_t bytesMore, int source_line,
enum XML_Account account);
static XML_Bool accountingDiffTolerated(XML_Parser originParser, int tok,
const char *before, const char *after,
int source_line,
enum XML_Account account);
static void entityTrackingReportStats(XML_Parser parser, ENTITY *entity,
const char *action, int sourceLine);
static void entityTrackingOnOpen(XML_Parser parser, ENTITY *entity,
int sourceLine);
static void entityTrackingOnClose(XML_Parser parser, ENTITY *entity,
int sourceLine);
static XML_Parser getRootParserOf(XML_Parser parser,
unsigned int *outLevelDiff);
#endif /* XML_DTD */
static unsigned long getDebugLevel(const char *variableName,
unsigned long defaultDebugLevel);
#define poolStart(pool) ((pool)->start)
#define poolEnd(pool) ((pool)->ptr)
#define poolLength(pool) ((pool)->ptr - (pool)->start)
@@ -625,6 +699,10 @@ struct XML_ParserStruct {
enum XML_ParamEntityParsing m_paramEntityParsing;
#endif
unsigned long m_hash_secret_salt;
#ifdef XML_DTD
ACCOUNTING m_accounting;
ENTITY_STATS m_entity_stats;
#endif
};
#define MALLOC(parser, s) (parser->m_mem.malloc_fcn((s)))
@@ -809,9 +887,8 @@ gather_time_entropy(void) {
static unsigned long
ENTROPY_DEBUG(const char *label, unsigned long entropy) {
const char *const EXPAT_ENTROPY_DEBUG = getenv("EXPAT_ENTROPY_DEBUG");
if (EXPAT_ENTROPY_DEBUG && ! strcmp(EXPAT_ENTROPY_DEBUG, "1")) {
fprintf(stderr, "Entropy: %s --> 0x%0*lx (%lu bytes)\n", label,
if (getDebugLevel("EXPAT_ENTROPY_DEBUG", 0) >= 1u) {
fprintf(stderr, "expat: Entropy: %s --> 0x%0*lx (%lu bytes)\n", label,
(int)sizeof(entropy) * 2, entropy, (unsigned long)sizeof(entropy));
}
return entropy;
@@ -1073,6 +1150,18 @@ parserInit(XML_Parser parser, const XML_Char *encodingName) {
parser->m_paramEntityParsing = XML_PARAM_ENTITY_PARSING_NEVER;
#endif
parser->m_hash_secret_salt = 0;
#ifdef XML_DTD
memset(&parser->m_accounting, 0, sizeof(ACCOUNTING));
parser->m_accounting.debugLevel = getDebugLevel("EXPAT_ACCOUNTING_DEBUG", 0u);
parser->m_accounting.maximumAmplificationFactor
= EXPAT_BILLION_LAUGHS_ATTACK_PROTECTION_MAXIMUM_AMPLIFICATION_DEFAULT;
parser->m_accounting.activationThresholdBytes
= EXPAT_BILLION_LAUGHS_ATTACK_PROTECTION_ACTIVATION_THRESHOLD_DEFAULT;
memset(&parser->m_entity_stats, 0, sizeof(ENTITY_STATS));
parser->m_entity_stats.debugLevel = getDebugLevel("EXPAT_ENTITY_DEBUG", 0u);
#endif
}
/* moves list of bindings to m_freeBindingList */
@@ -1893,6 +1982,12 @@ XML_ParseBuffer(XML_Parser parser, int len, int isFinal) {
parser->m_errorCode = XML_ERROR_FINISHED;
return XML_STATUS_ERROR;
case XML_INITIALIZED:
/* Has someone called XML_GetBuffer successfully before? */
if (! parser->m_bufferPtr) {
parser->m_errorCode = XML_ERROR_NO_BUFFER;
return XML_STATUS_ERROR;
}
if (parser->m_parentParser == NULL && ! startParsing(parser)) {
parser->m_errorCode = XML_ERROR_NO_MEMORY;
return XML_STATUS_ERROR;
@@ -2337,6 +2432,14 @@ XML_ErrorString(enum XML_Error code) {
/* Added in 2.2.5. */
case XML_ERROR_INVALID_ARGUMENT: /* Constant added in 2.2.1, already */
return XML_L("invalid argument");
/* Added in 2.3.0. */
case XML_ERROR_NO_BUFFER:
return XML_L(
"a successful prior call to function XML_GetBuffer is required");
/* Added in 2.4.0. */
case XML_ERROR_AMPLIFICATION_LIMIT_BREACH:
return XML_L(
"limit on input amplification factor (from DTD and entities) breached");
}
return NULL;
}
@@ -2373,41 +2476,75 @@ XML_ExpatVersionInfo(void) {
const XML_Feature *XMLCALL
XML_GetFeatureList(void) {
static const XML_Feature features[]
= {{XML_FEATURE_SIZEOF_XML_CHAR, XML_L("sizeof(XML_Char)"),
sizeof(XML_Char)},
{XML_FEATURE_SIZEOF_XML_LCHAR, XML_L("sizeof(XML_LChar)"),
sizeof(XML_LChar)},
static const XML_Feature features[] = {
{XML_FEATURE_SIZEOF_XML_CHAR, XML_L("sizeof(XML_Char)"),
sizeof(XML_Char)},
{XML_FEATURE_SIZEOF_XML_LCHAR, XML_L("sizeof(XML_LChar)"),
sizeof(XML_LChar)},
#ifdef XML_UNICODE
{XML_FEATURE_UNICODE, XML_L("XML_UNICODE"), 0},
{XML_FEATURE_UNICODE, XML_L("XML_UNICODE"), 0},
#endif
#ifdef XML_UNICODE_WCHAR_T
{XML_FEATURE_UNICODE_WCHAR_T, XML_L("XML_UNICODE_WCHAR_T"), 0},
{XML_FEATURE_UNICODE_WCHAR_T, XML_L("XML_UNICODE_WCHAR_T"), 0},
#endif
#ifdef XML_DTD
{XML_FEATURE_DTD, XML_L("XML_DTD"), 0},
{XML_FEATURE_DTD, XML_L("XML_DTD"), 0},
#endif
#ifdef XML_CONTEXT_BYTES
{XML_FEATURE_CONTEXT_BYTES, XML_L("XML_CONTEXT_BYTES"),
XML_CONTEXT_BYTES},
{XML_FEATURE_CONTEXT_BYTES, XML_L("XML_CONTEXT_BYTES"),
XML_CONTEXT_BYTES},
#endif
#ifdef XML_MIN_SIZE
{XML_FEATURE_MIN_SIZE, XML_L("XML_MIN_SIZE"), 0},
{XML_FEATURE_MIN_SIZE, XML_L("XML_MIN_SIZE"), 0},
#endif
#ifdef XML_NS
{XML_FEATURE_NS, XML_L("XML_NS"), 0},
{XML_FEATURE_NS, XML_L("XML_NS"), 0},
#endif
#ifdef XML_LARGE_SIZE
{XML_FEATURE_LARGE_SIZE, XML_L("XML_LARGE_SIZE"), 0},
{XML_FEATURE_LARGE_SIZE, XML_L("XML_LARGE_SIZE"), 0},
#endif
#ifdef XML_ATTR_INFO
{XML_FEATURE_ATTR_INFO, XML_L("XML_ATTR_INFO"), 0},
{XML_FEATURE_ATTR_INFO, XML_L("XML_ATTR_INFO"), 0},
#endif
{XML_FEATURE_END, NULL, 0}};
#ifdef XML_DTD
/* Added in Expat 2.4.0. */
{XML_FEATURE_BILLION_LAUGHS_ATTACK_PROTECTION_MAXIMUM_AMPLIFICATION_DEFAULT,
XML_L("XML_BLAP_MAX_AMP"),
(long int)
EXPAT_BILLION_LAUGHS_ATTACK_PROTECTION_MAXIMUM_AMPLIFICATION_DEFAULT},
{XML_FEATURE_BILLION_LAUGHS_ATTACK_PROTECTION_ACTIVATION_THRESHOLD_DEFAULT,
XML_L("XML_BLAP_ACT_THRES"),
EXPAT_BILLION_LAUGHS_ATTACK_PROTECTION_ACTIVATION_THRESHOLD_DEFAULT},
#endif
{XML_FEATURE_END, NULL, 0}};
return features;
}
#ifdef XML_DTD
XML_Bool XMLCALL
XML_SetBillionLaughsAttackProtectionMaximumAmplification(
XML_Parser parser, float maximumAmplificationFactor) {
if ((parser == NULL) || (parser->m_parentParser != NULL)
|| isnan(maximumAmplificationFactor)
|| (maximumAmplificationFactor < 1.0f)) {
return XML_FALSE;
}
parser->m_accounting.maximumAmplificationFactor = maximumAmplificationFactor;
return XML_TRUE;
}
XML_Bool XMLCALL
XML_SetBillionLaughsAttackProtectionActivationThreshold(
XML_Parser parser, unsigned long long activationThresholdBytes) {
if ((parser == NULL) || (parser->m_parentParser != NULL)) {
return XML_FALSE;
}
parser->m_accounting.activationThresholdBytes = activationThresholdBytes;
return XML_TRUE;
}
#endif /* XML_DTD */
/* Initially tag->rawName always points into the parse buffer;
for those TAG instances opened while the current parse buffer was
processed, and not yet closed, we need to store tag->rawName in a more
@@ -2460,9 +2597,9 @@ storeRawNames(XML_Parser parser) {
static enum XML_Error PTRCALL
contentProcessor(XML_Parser parser, const char *start, const char *end,
const char **endPtr) {
enum XML_Error result
= doContent(parser, 0, parser->m_encoding, start, end, endPtr,
(XML_Bool)! parser->m_parsingStatus.finalBuffer);
enum XML_Error result = doContent(
parser, 0, parser->m_encoding, start, end, endPtr,
(XML_Bool)! parser->m_parsingStatus.finalBuffer, XML_ACCOUNT_DIRECT);
if (result == XML_ERROR_NONE) {
if (! storeRawNames(parser))
return XML_ERROR_NO_MEMORY;
@@ -2487,6 +2624,14 @@ externalEntityInitProcessor2(XML_Parser parser, const char *start,
int tok = XmlContentTok(parser->m_encoding, start, end, &next);
switch (tok) {
case XML_TOK_BOM:
#ifdef XML_DTD
if (! accountingDiffTolerated(parser, tok, start, next, __LINE__,
XML_ACCOUNT_DIRECT)) {
accountingOnAbort(parser);
return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
}
#endif /* XML_DTD */
/* If we are at the end of the buffer, this would cause the next stage,
i.e. externalEntityInitProcessor3, to pass control directly to
doContent (by detecting XML_TOK_NONE) without processing any xml text
@@ -2524,6 +2669,10 @@ externalEntityInitProcessor3(XML_Parser parser, const char *start,
const char *next = start; /* XmlContentTok doesn't always set the last arg */
parser->m_eventPtr = start;
tok = XmlContentTok(parser->m_encoding, start, end, &next);
/* Note: These bytes are accounted later in:
- processXmlDecl
- externalEntityContentProcessor
*/
parser->m_eventEndPtr = next;
switch (tok) {
@@ -2565,7 +2714,8 @@ externalEntityContentProcessor(XML_Parser parser, const char *start,
const char *end, const char **endPtr) {
enum XML_Error result
= doContent(parser, 1, parser->m_encoding, start, end, endPtr,
(XML_Bool)! parser->m_parsingStatus.finalBuffer);
(XML_Bool)! parser->m_parsingStatus.finalBuffer,
XML_ACCOUNT_ENTITY_EXPANSION);
if (result == XML_ERROR_NONE) {
if (! storeRawNames(parser))
return XML_ERROR_NO_MEMORY;
@@ -2576,7 +2726,7 @@ externalEntityContentProcessor(XML_Parser parser, const char *start,
static enum XML_Error
doContent(XML_Parser parser, int startTagLevel, const ENCODING *enc,
const char *s, const char *end, const char **nextPtr,
XML_Bool haveMore) {
XML_Bool haveMore, enum XML_Account account) {
/* save one level of indirection */
DTD *const dtd = parser->m_dtd;
@@ -2594,6 +2744,17 @@ doContent(XML_Parser parser, int startTagLevel, const ENCODING *enc,
for (;;) {
const char *next = s; /* XmlContentTok doesn't always set the last arg */
int tok = XmlContentTok(enc, s, end, &next);
#ifdef XML_DTD
const char *accountAfter
= ((tok == XML_TOK_TRAILING_RSQB) || (tok == XML_TOK_TRAILING_CR))
? (haveMore ? s /* i.e. 0 bytes */ : end)
: next;
if (! accountingDiffTolerated(parser, tok, s, accountAfter, __LINE__,
account)) {
accountingOnAbort(parser);
return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
}
#endif
*eventEndPP = next;
switch (tok) {
case XML_TOK_TRAILING_CR:
@@ -2649,6 +2810,14 @@ doContent(XML_Parser parser, int startTagLevel, const ENCODING *enc,
XML_Char ch = (XML_Char)XmlPredefinedEntityName(
enc, s + enc->minBytesPerChar, next - enc->minBytesPerChar);
if (ch) {
#ifdef XML_DTD
/* NOTE: We are replacing 4-6 characters original input for 1 character
* so there is no amplification and hence recording without
* protection. */
accountingDiffTolerated(parser, tok, (char *)&ch,
((char *)&ch) + sizeof(XML_Char), __LINE__,
XML_ACCOUNT_ENTITY_EXPANSION);
#endif /* XML_DTD */
if (parser->m_characterDataHandler)
parser->m_characterDataHandler(parser->m_handlerArg, &ch, 1);
else if (parser->m_defaultHandler)
@@ -2767,7 +2936,8 @@ doContent(XML_Parser parser, int startTagLevel, const ENCODING *enc,
}
tag->name.str = (XML_Char *)tag->buf;
*toPtr = XML_T('\0');
result = storeAtts(parser, enc, s, &(tag->name), &(tag->bindings));
result
= storeAtts(parser, enc, s, &(tag->name), &(tag->bindings), account);
if (result)
return result;
if (parser->m_startElementHandler)
@@ -2791,7 +2961,8 @@ doContent(XML_Parser parser, int startTagLevel, const ENCODING *enc,
if (! name.str)
return XML_ERROR_NO_MEMORY;
poolFinish(&parser->m_tempPool);
result = storeAtts(parser, enc, s, &name, &bindings);
result = storeAtts(parser, enc, s, &name, &bindings,
XML_ACCOUNT_NONE /* token spans whole start tag */);
if (result != XML_ERROR_NONE) {
freeBindings(parser, bindings);
return result;
@@ -2926,7 +3097,8 @@ doContent(XML_Parser parser, int startTagLevel, const ENCODING *enc,
/* END disabled code */
else if (parser->m_defaultHandler)
reportDefault(parser, enc, s, next);
result = doCdataSection(parser, enc, &next, end, nextPtr, haveMore);
result
= doCdataSection(parser, enc, &next, end, nextPtr, haveMore, account);
if (result != XML_ERROR_NONE)
return result;
else if (! next) {
@@ -3055,7 +3227,8 @@ freeBindings(XML_Parser parser, BINDING *bindings) {
*/
static enum XML_Error
storeAtts(XML_Parser parser, const ENCODING *enc, const char *attStr,
TAG_NAME *tagNamePtr, BINDING **bindingsPtr) {
TAG_NAME *tagNamePtr, BINDING **bindingsPtr,
enum XML_Account account) {
DTD *const dtd = parser->m_dtd; /* save one level of indirection */
ELEMENT_TYPE *elementType;
int nDefaultAtts;
@@ -3165,7 +3338,7 @@ storeAtts(XML_Parser parser, const ENCODING *enc, const char *attStr,
/* normalize the attribute value */
result = storeAttributeValue(
parser, enc, isCdata, parser->m_atts[i].valuePtr,
parser->m_atts[i].valueEnd, &parser->m_tempPool);
parser->m_atts[i].valueEnd, &parser->m_tempPool, account);
if (result)
return result;
appAtts[attIndex] = poolStart(&parser->m_tempPool);
@@ -3554,9 +3727,9 @@ addBinding(XML_Parser parser, PREFIX *prefix, const ATTRIBUTE_ID *attId,
static enum XML_Error PTRCALL
cdataSectionProcessor(XML_Parser parser, const char *start, const char *end,
const char **endPtr) {
enum XML_Error result
= doCdataSection(parser, parser->m_encoding, &start, end, endPtr,
(XML_Bool)! parser->m_parsingStatus.finalBuffer);
enum XML_Error result = doCdataSection(
parser, parser->m_encoding, &start, end, endPtr,
(XML_Bool)! parser->m_parsingStatus.finalBuffer, XML_ACCOUNT_DIRECT);
if (result != XML_ERROR_NONE)
return result;
if (start) {
@@ -3576,7 +3749,8 @@ cdataSectionProcessor(XML_Parser parser, const char *start, const char *end,
*/
static enum XML_Error
doCdataSection(XML_Parser parser, const ENCODING *enc, const char **startPtr,
const char *end, const char **nextPtr, XML_Bool haveMore) {
const char *end, const char **nextPtr, XML_Bool haveMore,
enum XML_Account account) {
const char *s = *startPtr;
const char **eventPP;
const char **eventEndPP;
@@ -3594,6 +3768,14 @@ doCdataSection(XML_Parser parser, const ENCODING *enc, const char **startPtr,
for (;;) {
const char *next = s; /* in case of XML_TOK_NONE or XML_TOK_PARTIAL */
int tok = XmlCdataSectionTok(enc, s, end, &next);
#ifdef XML_DTD
if (! accountingDiffTolerated(parser, tok, s, next, __LINE__, account)) {
accountingOnAbort(parser);
return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
}
#else
UNUSED_P(account);
#endif
*eventEndPP = next;
switch (tok) {
case XML_TOK_CDATA_SECT_CLOSE:
@@ -3738,6 +3920,13 @@ doIgnoreSection(XML_Parser parser, const ENCODING *enc, const char **startPtr,
*eventPP = s;
*startPtr = NULL;
tok = XmlIgnoreSectionTok(enc, s, end, &next);
# ifdef XML_DTD
if (! accountingDiffTolerated(parser, tok, s, next, __LINE__,
XML_ACCOUNT_DIRECT)) {
accountingOnAbort(parser);
return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
}
# endif
*eventEndPP = next;
switch (tok) {
case XML_TOK_IGNORE_SECT:
@@ -3822,6 +4011,15 @@ processXmlDecl(XML_Parser parser, int isGeneralTextEntity, const char *s,
const char *versionend;
const XML_Char *storedversion = NULL;
int standalone = -1;
#ifdef XML_DTD
if (! accountingDiffTolerated(parser, XML_TOK_XML_DECL, s, next, __LINE__,
XML_ACCOUNT_DIRECT)) {
accountingOnAbort(parser);
return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
}
#endif
if (! (parser->m_ns ? XmlParseXmlDeclNS : XmlParseXmlDecl)(
isGeneralTextEntity, parser->m_encoding, s, next, &parser->m_eventPtr,
&version, &versionend, &encodingName, &newEncoding, &standalone)) {
@@ -3971,6 +4169,10 @@ entityValueInitProcessor(XML_Parser parser, const char *s, const char *end,
for (;;) {
tok = XmlPrologTok(parser->m_encoding, start, end, &next);
/* Note: Except for XML_TOK_BOM below, these bytes are accounted later in:
- storeEntityValue
- processXmlDecl
*/
parser->m_eventEndPtr = next;
if (tok <= 0) {
if (! parser->m_parsingStatus.finalBuffer && tok != XML_TOK_INVALID) {
@@ -3989,7 +4191,8 @@ entityValueInitProcessor(XML_Parser parser, const char *s, const char *end,
break;
}
/* found end of entity value - can store it now */
return storeEntityValue(parser, parser->m_encoding, s, end);
return storeEntityValue(parser, parser->m_encoding, s, end,
XML_ACCOUNT_DIRECT);
} else if (tok == XML_TOK_XML_DECL) {
enum XML_Error result;
result = processXmlDecl(parser, 0, start, next);
@@ -4016,6 +4219,14 @@ entityValueInitProcessor(XML_Parser parser, const char *s, const char *end,
*/
else if (tok == XML_TOK_BOM && next == end
&& ! parser->m_parsingStatus.finalBuffer) {
# ifdef XML_DTD
if (! accountingDiffTolerated(parser, tok, s, next, __LINE__,
XML_ACCOUNT_DIRECT)) {
accountingOnAbort(parser);
return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
}
# endif
*nextPtr = next;
return XML_ERROR_NONE;
}
@@ -4058,16 +4269,24 @@ externalParEntProcessor(XML_Parser parser, const char *s, const char *end,
}
/* This would cause the next stage, i.e. doProlog to be passed XML_TOK_BOM.
However, when parsing an external subset, doProlog will not accept a BOM
as valid, and report a syntax error, so we have to skip the BOM
as valid, and report a syntax error, so we have to skip the BOM, and
account for the BOM bytes.
*/
else if (tok == XML_TOK_BOM) {
if (! accountingDiffTolerated(parser, tok, s, next, __LINE__,
XML_ACCOUNT_DIRECT)) {
accountingOnAbort(parser);
return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
}
s = next;
tok = XmlPrologTok(parser->m_encoding, s, end, &next);
}
parser->m_processor = prologProcessor;
return doProlog(parser, parser->m_encoding, s, end, tok, next, nextPtr,
(XML_Bool)! parser->m_parsingStatus.finalBuffer, XML_TRUE);
(XML_Bool)! parser->m_parsingStatus.finalBuffer, XML_TRUE,
XML_ACCOUNT_DIRECT);
}
static enum XML_Error PTRCALL
@@ -4080,6 +4299,9 @@ entityValueProcessor(XML_Parser parser, const char *s, const char *end,
for (;;) {
tok = XmlPrologTok(enc, start, end, &next);
/* Note: These bytes are accounted later in:
- storeEntityValue
*/
if (tok <= 0) {
if (! parser->m_parsingStatus.finalBuffer && tok != XML_TOK_INVALID) {
*nextPtr = s;
@@ -4097,7 +4319,7 @@ entityValueProcessor(XML_Parser parser, const char *s, const char *end,
break;
}
/* found end of entity value - can store it now */
return storeEntityValue(parser, enc, s, end);
return storeEntityValue(parser, enc, s, end, XML_ACCOUNT_DIRECT);
}
start = next;
}
@@ -4111,13 +4333,14 @@ prologProcessor(XML_Parser parser, const char *s, const char *end,
const char *next = s;
int tok = XmlPrologTok(parser->m_encoding, s, end, &next);
return doProlog(parser, parser->m_encoding, s, end, tok, next, nextPtr,
(XML_Bool)! parser->m_parsingStatus.finalBuffer, XML_TRUE);
(XML_Bool)! parser->m_parsingStatus.finalBuffer, XML_TRUE,
XML_ACCOUNT_DIRECT);
}
static enum XML_Error
doProlog(XML_Parser parser, const ENCODING *enc, const char *s, const char *end,
int tok, const char *next, const char **nextPtr, XML_Bool haveMore,
XML_Bool allowClosingDoctype) {
XML_Bool allowClosingDoctype, enum XML_Account account) {
#ifdef XML_DTD
static const XML_Char externalSubsetName[] = {ASCII_HASH, '\0'};
#endif /* XML_DTD */
@@ -4144,6 +4367,10 @@ doProlog(XML_Parser parser, const ENCODING *enc, const char *s, const char *end,
static const XML_Char enumValueSep[] = {ASCII_PIPE, '\0'};
static const XML_Char enumValueStart[] = {ASCII_LPAREN, '\0'};
#ifndef XML_DTD
UNUSED_P(account);
#endif
/* save one level of indirection */
DTD *const dtd = parser->m_dtd;
@@ -4208,6 +4435,19 @@ doProlog(XML_Parser parser, const ENCODING *enc, const char *s, const char *end,
}
}
role = XmlTokenRole(&parser->m_prologState, tok, s, next, enc);
#ifdef XML_DTD
switch (role) {
case XML_ROLE_INSTANCE_START: // bytes accounted in contentProcessor
case XML_ROLE_XML_DECL: // bytes accounted in processXmlDecl
case XML_ROLE_TEXT_DECL: // bytes accounted in processXmlDecl
break;
default:
if (! accountingDiffTolerated(parser, tok, s, next, __LINE__, account)) {
accountingOnAbort(parser);
return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
}
}
#endif
switch (role) {
case XML_ROLE_XML_DECL: {
enum XML_Error result = processXmlDecl(parser, 0, s, next);
@@ -4483,7 +4723,8 @@ doProlog(XML_Parser parser, const ENCODING *enc, const char *s, const char *end,
const XML_Char *attVal;
enum XML_Error result = storeAttributeValue(
parser, enc, parser->m_declAttributeIsCdata,
s + enc->minBytesPerChar, next - enc->minBytesPerChar, &dtd->pool);
s + enc->minBytesPerChar, next - enc->minBytesPerChar, &dtd->pool,
XML_ACCOUNT_NONE);
if (result)
return result;
attVal = poolStart(&dtd->pool);
@@ -4516,8 +4757,9 @@ doProlog(XML_Parser parser, const ENCODING *enc, const char *s, const char *end,
break;
case XML_ROLE_ENTITY_VALUE:
if (dtd->keepProcessing) {
enum XML_Error result = storeEntityValue(
parser, enc, s + enc->minBytesPerChar, next - enc->minBytesPerChar);
enum XML_Error result
= storeEntityValue(parser, enc, s + enc->minBytesPerChar,
next - enc->minBytesPerChar, XML_ACCOUNT_NONE);
if (parser->m_declEntity) {
parser->m_declEntity->textPtr = poolStart(&dtd->entityValuePool);
parser->m_declEntity->textLen
@@ -4907,12 +5149,15 @@ doProlog(XML_Parser parser, const ENCODING *enc, const char *s, const char *end,
if (parser->m_externalEntityRefHandler) {
dtd->paramEntityRead = XML_FALSE;
entity->open = XML_TRUE;
entityTrackingOnOpen(parser, entity, __LINE__);
if (! parser->m_externalEntityRefHandler(
parser->m_externalEntityRefHandlerArg, 0, entity->base,
entity->systemId, entity->publicId)) {
entityTrackingOnClose(parser, entity, __LINE__);
entity->open = XML_FALSE;
return XML_ERROR_EXTERNAL_ENTITY_HANDLING;
}
entityTrackingOnClose(parser, entity, __LINE__);
entity->open = XML_FALSE;
handleDefault = XML_FALSE;
if (! dtd->paramEntityRead) {
@@ -5110,6 +5355,13 @@ epilogProcessor(XML_Parser parser, const char *s, const char *end,
for (;;) {
const char *next = NULL;
int tok = XmlPrologTok(parser->m_encoding, s, end, &next);
#ifdef XML_DTD
if (! accountingDiffTolerated(parser, tok, s, next, __LINE__,
XML_ACCOUNT_DIRECT)) {
accountingOnAbort(parser);
return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
}
#endif
parser->m_eventEndPtr = next;
switch (tok) {
/* report partial linebreak - it might be the last token */
@@ -5183,6 +5435,9 @@ processInternalEntity(XML_Parser parser, ENTITY *entity, XML_Bool betweenDecl) {
return XML_ERROR_NO_MEMORY;
}
entity->open = XML_TRUE;
#ifdef XML_DTD
entityTrackingOnOpen(parser, entity, __LINE__);
#endif
entity->processed = 0;
openEntity->next = parser->m_openInternalEntities;
parser->m_openInternalEntities = openEntity;
@@ -5201,17 +5456,22 @@ processInternalEntity(XML_Parser parser, ENTITY *entity, XML_Bool betweenDecl) {
int tok
= XmlPrologTok(parser->m_internalEncoding, textStart, textEnd, &next);
result = doProlog(parser, parser->m_internalEncoding, textStart, textEnd,
tok, next, &next, XML_FALSE, XML_FALSE);
tok, next, &next, XML_FALSE, XML_FALSE,
XML_ACCOUNT_ENTITY_EXPANSION);
} else
#endif /* XML_DTD */
result = doContent(parser, parser->m_tagLevel, parser->m_internalEncoding,
textStart, textEnd, &next, XML_FALSE);
textStart, textEnd, &next, XML_FALSE,
XML_ACCOUNT_ENTITY_EXPANSION);
if (result == XML_ERROR_NONE) {
if (textEnd != next && parser->m_parsingStatus.parsing == XML_SUSPENDED) {
entity->processed = (int)(next - textStart);
parser->m_processor = internalEntityProcessor;
} else {
#ifdef XML_DTD
entityTrackingOnClose(parser, entity, __LINE__);
#endif /* XML_DTD */
entity->open = XML_FALSE;
parser->m_openInternalEntities = openEntity->next;
/* put openEntity back in list of free instances */
@@ -5244,12 +5504,13 @@ internalEntityProcessor(XML_Parser parser, const char *s, const char *end,
int tok
= XmlPrologTok(parser->m_internalEncoding, textStart, textEnd, &next);
result = doProlog(parser, parser->m_internalEncoding, textStart, textEnd,
tok, next, &next, XML_FALSE, XML_TRUE);
tok, next, &next, XML_FALSE, XML_TRUE,
XML_ACCOUNT_ENTITY_EXPANSION);
} else
#endif /* XML_DTD */
result = doContent(parser, openEntity->startTagLevel,
parser->m_internalEncoding, textStart, textEnd, &next,
XML_FALSE);
XML_FALSE, XML_ACCOUNT_ENTITY_EXPANSION);
if (result != XML_ERROR_NONE)
return result;
@@ -5258,6 +5519,9 @@ internalEntityProcessor(XML_Parser parser, const char *s, const char *end,
entity->processed = (int)(next - (const char *)entity->textPtr);
return result;
} else {
#ifdef XML_DTD
entityTrackingOnClose(parser, entity, __LINE__);
#endif
entity->open = XML_FALSE;
parser->m_openInternalEntities = openEntity->next;
/* put openEntity back in list of free instances */
@@ -5271,7 +5535,8 @@ internalEntityProcessor(XML_Parser parser, const char *s, const char *end,
parser->m_processor = prologProcessor;
tok = XmlPrologTok(parser->m_encoding, s, end, &next);
return doProlog(parser, parser->m_encoding, s, end, tok, next, nextPtr,
(XML_Bool)! parser->m_parsingStatus.finalBuffer, XML_TRUE);
(XML_Bool)! parser->m_parsingStatus.finalBuffer, XML_TRUE,
XML_ACCOUNT_DIRECT);
} else
#endif /* XML_DTD */
{
@@ -5279,7 +5544,8 @@ internalEntityProcessor(XML_Parser parser, const char *s, const char *end,
/* see externalEntityContentProcessor vs contentProcessor */
return doContent(parser, parser->m_parentParser ? 1 : 0, parser->m_encoding,
s, end, nextPtr,
(XML_Bool)! parser->m_parsingStatus.finalBuffer);
(XML_Bool)! parser->m_parsingStatus.finalBuffer,
XML_ACCOUNT_DIRECT);
}
}
@@ -5294,9 +5560,10 @@ errorProcessor(XML_Parser parser, const char *s, const char *end,
static enum XML_Error
storeAttributeValue(XML_Parser parser, const ENCODING *enc, XML_Bool isCdata,
const char *ptr, const char *end, STRING_POOL *pool) {
const char *ptr, const char *end, STRING_POOL *pool,
enum XML_Account account) {
enum XML_Error result
= appendAttributeValue(parser, enc, isCdata, ptr, end, pool);
= appendAttributeValue(parser, enc, isCdata, ptr, end, pool, account);
if (result)
return result;
if (! isCdata && poolLength(pool) && poolLastChar(pool) == 0x20)
@@ -5308,11 +5575,23 @@ storeAttributeValue(XML_Parser parser, const ENCODING *enc, XML_Bool isCdata,
static enum XML_Error
appendAttributeValue(XML_Parser parser, const ENCODING *enc, XML_Bool isCdata,
const char *ptr, const char *end, STRING_POOL *pool) {
const char *ptr, const char *end, STRING_POOL *pool,
enum XML_Account account) {
DTD *const dtd = parser->m_dtd; /* save one level of indirection */
#ifndef XML_DTD
UNUSED_P(account);
#endif
for (;;) {
const char *next;
const char *next
= ptr; /* XmlAttributeValueTok doesn't always set the last arg */
int tok = XmlAttributeValueTok(enc, ptr, end, &next);
#ifdef XML_DTD
if (! accountingDiffTolerated(parser, tok, ptr, next, __LINE__, account)) {
accountingOnAbort(parser);
return XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
}
#endif
switch (tok) {
case XML_TOK_NONE:
return XML_ERROR_NONE;
@@ -5372,6 +5651,14 @@ appendAttributeValue(XML_Parser parser, const ENCODING *enc, XML_Bool isCdata,
XML_Char ch = (XML_Char)XmlPredefinedEntityName(
enc, ptr + enc->minBytesPerChar, next - enc->minBytesPerChar);
if (ch) {
#ifdef XML_DTD
/* NOTE: We are replacing 4-6 characters original input for 1 character
* so there is no amplification and hence recording without
* protection. */
accountingDiffTolerated(parser, tok, (char *)&ch,
((char *)&ch) + sizeof(XML_Char), __LINE__,
XML_ACCOUNT_ENTITY_EXPANSION);
#endif /* XML_DTD */
if (! poolAppendChar(pool, ch))
return XML_ERROR_NO_MEMORY;
break;
@@ -5449,9 +5736,16 @@ appendAttributeValue(XML_Parser parser, const ENCODING *enc, XML_Bool isCdata,
enum XML_Error result;
const XML_Char *textEnd = entity->textPtr + entity->textLen;
entity->open = XML_TRUE;
#ifdef XML_DTD
entityTrackingOnOpen(parser, entity, __LINE__);
#endif
result = appendAttributeValue(parser, parser->m_internalEncoding,
isCdata, (const char *)entity->textPtr,
(const char *)textEnd, pool);
(const char *)textEnd, pool,
XML_ACCOUNT_ENTITY_EXPANSION);
#ifdef XML_DTD
entityTrackingOnClose(parser, entity, __LINE__);
#endif
entity->open = XML_FALSE;
if (result)
return result;
@@ -5481,13 +5775,16 @@ appendAttributeValue(XML_Parser parser, const ENCODING *enc, XML_Bool isCdata,
static enum XML_Error
storeEntityValue(XML_Parser parser, const ENCODING *enc,
const char *entityTextPtr, const char *entityTextEnd) {
const char *entityTextPtr, const char *entityTextEnd,
enum XML_Account account) {
DTD *const dtd = parser->m_dtd; /* save one level of indirection */
STRING_POOL *pool = &(dtd->entityValuePool);
enum XML_Error result = XML_ERROR_NONE;
#ifdef XML_DTD
int oldInEntityValue = parser->m_prologState.inEntityValue;
parser->m_prologState.inEntityValue = 1;
#else
UNUSED_P(account);
#endif /* XML_DTD */
/* never return Null for the value argument in EntityDeclHandler,
since this would indicate an external entity; therefore we
@@ -5498,8 +5795,19 @@ storeEntityValue(XML_Parser parser, const ENCODING *enc,
}
for (;;) {
const char *next;
const char *next
= entityTextPtr; /* XmlEntityValueTok doesn't always set the last arg */
int tok = XmlEntityValueTok(enc, entityTextPtr, entityTextEnd, &next);
#ifdef XML_DTD
if (! accountingDiffTolerated(parser, tok, entityTextPtr, next, __LINE__,
account)) {
accountingOnAbort(parser);
result = XML_ERROR_AMPLIFICATION_LIMIT_BREACH;
goto endEntityValue;
}
#endif
switch (tok) {
case XML_TOK_PARAM_ENTITY_REF:
#ifdef XML_DTD
@@ -5535,13 +5843,16 @@ storeEntityValue(XML_Parser parser, const ENCODING *enc,
if (parser->m_externalEntityRefHandler) {
dtd->paramEntityRead = XML_FALSE;
entity->open = XML_TRUE;
entityTrackingOnOpen(parser, entity, __LINE__);
if (! parser->m_externalEntityRefHandler(
parser->m_externalEntityRefHandlerArg, 0, entity->base,
entity->systemId, entity->publicId)) {
entityTrackingOnClose(parser, entity, __LINE__);
entity->open = XML_FALSE;
result = XML_ERROR_EXTERNAL_ENTITY_HANDLING;
goto endEntityValue;
}
entityTrackingOnClose(parser, entity, __LINE__);
entity->open = XML_FALSE;
if (! dtd->paramEntityRead)
dtd->keepProcessing = dtd->standalone;
@@ -5549,9 +5860,12 @@ storeEntityValue(XML_Parser parser, const ENCODING *enc,
dtd->keepProcessing = dtd->standalone;
} else {
entity->open = XML_TRUE;
entityTrackingOnOpen(parser, entity, __LINE__);
result = storeEntityValue(
parser, parser->m_internalEncoding, (const char *)entity->textPtr,
(const char *)(entity->textPtr + entity->textLen));
(const char *)(entity->textPtr + entity->textLen),
XML_ACCOUNT_ENTITY_EXPANSION);
entityTrackingOnClose(parser, entity, __LINE__);
entity->open = XML_FALSE;
if (result)
goto endEntityValue;
@@ -6912,3 +7226,755 @@ copyString(const XML_Char *s, const XML_Memory_Handling_Suite *memsuite) {
memcpy(result, s, charsRequired * sizeof(XML_Char));
return result;
}
#ifdef XML_DTD
static float
accountingGetCurrentAmplification(XML_Parser rootParser) {
const XmlBigCount countBytesOutput
= rootParser->m_accounting.countBytesDirect
+ rootParser->m_accounting.countBytesIndirect;
const float amplificationFactor
= rootParser->m_accounting.countBytesDirect
? (countBytesOutput
/ (float)(rootParser->m_accounting.countBytesDirect))
: 1.0f;
assert(! rootParser->m_parentParser);
return amplificationFactor;
}
static void
accountingReportStats(XML_Parser originParser, const char *epilog) {
const XML_Parser rootParser = getRootParserOf(originParser, NULL);
assert(! rootParser->m_parentParser);
if (rootParser->m_accounting.debugLevel < 1) {
return;
}
const float amplificationFactor
= accountingGetCurrentAmplification(rootParser);
fprintf(stderr,
"expat: Accounting(%p): Direct " EXPAT_FMT_ULL(
"10") ", indirect " EXPAT_FMT_ULL("10") ", amplification %8.2f%s",
(void *)rootParser, rootParser->m_accounting.countBytesDirect,
rootParser->m_accounting.countBytesIndirect,
(double)amplificationFactor, epilog);
}
static void
accountingOnAbort(XML_Parser originParser) {
accountingReportStats(originParser, " ABORTING\n");
}
static void
accountingReportDiff(XML_Parser rootParser,
unsigned int levelsAwayFromRootParser, const char *before,
const char *after, ptrdiff_t bytesMore, int source_line,
enum XML_Account account) {
assert(! rootParser->m_parentParser);
fprintf(stderr,
" (+" EXPAT_FMT_PTRDIFF_T("6") " bytes %s|%d, xmlparse.c:%d) %*s\"",
bytesMore, (account == XML_ACCOUNT_DIRECT) ? "DIR" : "EXP",
levelsAwayFromRootParser, source_line, 10, "");
const char ellipis[] = "[..]";
const size_t ellipsisLength = sizeof(ellipis) /* because compile-time */ - 1;
const unsigned int contextLength = 10;
/* Note: Performance is of no concern here */
const char *walker = before;
if ((rootParser->m_accounting.debugLevel >= 3)
|| (after - before)
<= (ptrdiff_t)(contextLength + ellipsisLength + contextLength)) {
for (; walker < after; walker++) {
fprintf(stderr, "%s", unsignedCharToPrintable(walker[0]));
}
} else {
for (; walker < before + contextLength; walker++) {
fprintf(stderr, "%s", unsignedCharToPrintable(walker[0]));
}
fprintf(stderr, ellipis);
walker = after - contextLength;
for (; walker < after; walker++) {
fprintf(stderr, "%s", unsignedCharToPrintable(walker[0]));
}
}
fprintf(stderr, "\"\n");
}
static XML_Bool
accountingDiffTolerated(XML_Parser originParser, int tok, const char *before,
const char *after, int source_line,
enum XML_Account account) {
/* Note: We need to check the token type *first* to be sure that
* we can even access variable <after>, safely.
* E.g. for XML_TOK_NONE <after> may hold an invalid pointer. */
switch (tok) {
case XML_TOK_INVALID:
case XML_TOK_PARTIAL:
case XML_TOK_PARTIAL_CHAR:
case XML_TOK_NONE:
return XML_TRUE;
}
if (account == XML_ACCOUNT_NONE)
return XML_TRUE; /* because these bytes have been accounted for, already */
unsigned int levelsAwayFromRootParser;
const XML_Parser rootParser
= getRootParserOf(originParser, &levelsAwayFromRootParser);
assert(! rootParser->m_parentParser);
const int isDirect
= (account == XML_ACCOUNT_DIRECT) && (originParser == rootParser);
const ptrdiff_t bytesMore = after - before;
XmlBigCount *const additionTarget
= isDirect ? &rootParser->m_accounting.countBytesDirect
: &rootParser->m_accounting.countBytesIndirect;
/* Detect and avoid integer overflow */
if (*additionTarget > (XmlBigCount)(-1) - (XmlBigCount)bytesMore)
return XML_FALSE;
*additionTarget += bytesMore;
const XmlBigCount countBytesOutput
= rootParser->m_accounting.countBytesDirect
+ rootParser->m_accounting.countBytesIndirect;
const float amplificationFactor
= accountingGetCurrentAmplification(rootParser);
const XML_Bool tolerated
= (countBytesOutput < rootParser->m_accounting.activationThresholdBytes)
|| (amplificationFactor
<= rootParser->m_accounting.maximumAmplificationFactor);
if (rootParser->m_accounting.debugLevel >= 2) {
accountingReportStats(rootParser, "");
accountingReportDiff(rootParser, levelsAwayFromRootParser, before, after,
bytesMore, source_line, account);
}
return tolerated;
}
unsigned long long
testingAccountingGetCountBytesDirect(XML_Parser parser) {
if (! parser)
return 0;
return parser->m_accounting.countBytesDirect;
}
unsigned long long
testingAccountingGetCountBytesIndirect(XML_Parser parser) {
if (! parser)
return 0;
return parser->m_accounting.countBytesIndirect;
}
static void
entityTrackingReportStats(XML_Parser rootParser, ENTITY *entity,
const char *action, int sourceLine) {
assert(! rootParser->m_parentParser);
if (rootParser->m_entity_stats.debugLevel < 1)
return;
# if defined(XML_UNICODE)
const char *const entityName = "[..]";
# else
const char *const entityName = entity->name;
# endif
fprintf(
stderr,
"expat: Entities(%p): Count %9d, depth %2d/%2d %*s%s%s; %s length %d (xmlparse.c:%d)\n",
(void *)rootParser, rootParser->m_entity_stats.countEverOpened,
rootParser->m_entity_stats.currentDepth,
rootParser->m_entity_stats.maximumDepthSeen,
(rootParser->m_entity_stats.currentDepth - 1) * 2, "",
entity->is_param ? "%" : "&", entityName, action, entity->textLen,
sourceLine);
}
static void
entityTrackingOnOpen(XML_Parser originParser, ENTITY *entity, int sourceLine) {
const XML_Parser rootParser = getRootParserOf(originParser, NULL);
assert(! rootParser->m_parentParser);
rootParser->m_entity_stats.countEverOpened++;
rootParser->m_entity_stats.currentDepth++;
if (rootParser->m_entity_stats.currentDepth
> rootParser->m_entity_stats.maximumDepthSeen) {
rootParser->m_entity_stats.maximumDepthSeen++;
}
entityTrackingReportStats(rootParser, entity, "OPEN ", sourceLine);
}
static void
entityTrackingOnClose(XML_Parser originParser, ENTITY *entity, int sourceLine) {
const XML_Parser rootParser = getRootParserOf(originParser, NULL);
assert(! rootParser->m_parentParser);
entityTrackingReportStats(rootParser, entity, "CLOSE", sourceLine);
rootParser->m_entity_stats.currentDepth--;
}
static XML_Parser
getRootParserOf(XML_Parser parser, unsigned int *outLevelDiff) {
XML_Parser rootParser = parser;
unsigned int stepsTakenUpwards = 0;
while (rootParser->m_parentParser) {
rootParser = rootParser->m_parentParser;
stepsTakenUpwards++;
}
assert(! rootParser->m_parentParser);
if (outLevelDiff != NULL) {
*outLevelDiff = stepsTakenUpwards;
}
return rootParser;
}
const char *
unsignedCharToPrintable(unsigned char c) {
switch (c) {
case 0:
return "\\0";
case 1:
return "\\x1";
case 2:
return "\\x2";
case 3:
return "\\x3";
case 4:
return "\\x4";
case 5:
return "\\x5";
case 6:
return "\\x6";
case 7:
return "\\x7";
case 8:
return "\\x8";
case 9:
return "\\t";
case 10:
return "\\n";
case 11:
return "\\xB";
case 12:
return "\\xC";
case 13:
return "\\r";
case 14:
return "\\xE";
case 15:
return "\\xF";
case 16:
return "\\x10";
case 17:
return "\\x11";
case 18:
return "\\x12";
case 19:
return "\\x13";
case 20:
return "\\x14";
case 21:
return "\\x15";
case 22:
return "\\x16";
case 23:
return "\\x17";
case 24:
return "\\x18";
case 25:
return "\\x19";
case 26:
return "\\x1A";
case 27:
return "\\x1B";
case 28:
return "\\x1C";
case 29:
return "\\x1D";
case 30:
return "\\x1E";
case 31:
return "\\x1F";
case 32:
return " ";
case 33:
return "!";
case 34:
return "\\\"";
case 35:
return "#";
case 36:
return "$";
case 37:
return "%";
case 38:
return "&";
case 39:
return "'";
case 40:
return "(";
case 41:
return ")";
case 42:
return "*";
case 43:
return "+";
case 44:
return ",";
case 45:
return "-";
case 46:
return ".";
case 47:
return "/";
case 48:
return "0";
case 49:
return "1";
case 50:
return "2";
case 51:
return "3";
case 52:
return "4";
case 53:
return "5";
case 54:
return "6";
case 55:
return "7";
case 56:
return "8";
case 57:
return "9";
case 58:
return ":";
case 59:
return ";";
case 60:
return "<";
case 61:
return "=";
case 62:
return ">";
case 63:
return "?";
case 64:
return "@";
case 65:
return "A";
case 66:
return "B";
case 67:
return "C";
case 68:
return "D";
case 69:
return "E";
case 70:
return "F";
case 71:
return "G";
case 72:
return "H";
case 73:
return "I";
case 74:
return "J";
case 75:
return "K";
case 76:
return "L";
case 77:
return "M";
case 78:
return "N";
case 79:
return "O";
case 80:
return "P";
case 81:
return "Q";
case 82:
return "R";
case 83:
return "S";
case 84:
return "T";
case 85:
return "U";
case 86:
return "V";
case 87:
return "W";
case 88:
return "X";
case 89:
return "Y";
case 90:
return "Z";
case 91:
return "[";
case 92:
return "\\\\";
case 93:
return "]";
case 94:
return "^";
case 95:
return "_";
case 96:
return "`";
case 97:
return "a";
case 98:
return "b";
case 99:
return "c";
case 100:
return "d";
case 101:
return "e";
case 102:
return "f";
case 103:
return "g";
case 104:
return "h";
case 105:
return "i";
case 106:
return "j";
case 107:
return "k";
case 108:
return "l";
case 109:
return "m";
case 110:
return "n";
case 111:
return "o";
case 112:
return "p";
case 113:
return "q";
case 114:
return "r";
case 115:
return "s";
case 116:
return "t";
case 117:
return "u";
case 118:
return "v";
case 119:
return "w";
case 120:
return "x";
case 121:
return "y";
case 122:
return "z";
case 123:
return "{";
case 124:
return "|";
case 125:
return "}";
case 126:
return "~";
case 127:
return "\\x7F";
case 128:
return "\\x80";
case 129:
return "\\x81";
case 130:
return "\\x82";
case 131:
return "\\x83";
case 132:
return "\\x84";
case 133:
return "\\x85";
case 134:
return "\\x86";
case 135:
return "\\x87";
case 136:
return "\\x88";
case 137:
return "\\x89";
case 138:
return "\\x8A";
case 139:
return "\\x8B";
case 140:
return "\\x8C";
case 141:
return "\\x8D";
case 142:
return "\\x8E";
case 143:
return "\\x8F";
case 144:
return "\\x90";
case 145:
return "\\x91";
case 146:
return "\\x92";
case 147:
return "\\x93";
case 148:
return "\\x94";
case 149:
return "\\x95";
case 150:
return "\\x96";
case 151:
return "\\x97";
case 152:
return "\\x98";
case 153:
return "\\x99";
case 154:
return "\\x9A";
case 155:
return "\\x9B";
case 156:
return "\\x9C";
case 157:
return "\\x9D";
case 158:
return "\\x9E";
case 159:
return "\\x9F";
case 160:
return "\\xA0";
case 161:
return "\\xA1";
case 162:
return "\\xA2";
case 163:
return "\\xA3";
case 164:
return "\\xA4";
case 165:
return "\\xA5";
case 166:
return "\\xA6";
case 167:
return "\\xA7";
case 168:
return "\\xA8";
case 169:
return "\\xA9";
case 170:
return "\\xAA";
case 171:
return "\\xAB";
case 172:
return "\\xAC";
case 173:
return "\\xAD";
case 174:
return "\\xAE";
case 175:
return "\\xAF";
case 176:
return "\\xB0";
case 177:
return "\\xB1";
case 178:
return "\\xB2";
case 179:
return "\\xB3";
case 180:
return "\\xB4";
case 181:
return "\\xB5";
case 182:
return "\\xB6";
case 183:
return "\\xB7";
case 184:
return "\\xB8";
case 185:
return "\\xB9";
case 186:
return "\\xBA";
case 187:
return "\\xBB";
case 188:
return "\\xBC";
case 189:
return "\\xBD";
case 190:
return "\\xBE";
case 191:
return "\\xBF";
case 192:
return "\\xC0";
case 193:
return "\\xC1";
case 194:
return "\\xC2";
case 195:
return "\\xC3";
case 196:
return "\\xC4";
case 197:
return "\\xC5";
case 198:
return "\\xC6";
case 199:
return "\\xC7";
case 200:
return "\\xC8";
case 201:
return "\\xC9";
case 202:
return "\\xCA";
case 203:
return "\\xCB";
case 204:
return "\\xCC";
case 205:
return "\\xCD";
case 206:
return "\\xCE";
case 207:
return "\\xCF";
case 208:
return "\\xD0";
case 209:
return "\\xD1";
case 210:
return "\\xD2";
case 211:
return "\\xD3";
case 212:
return "\\xD4";
case 213:
return "\\xD5";
case 214:
return "\\xD6";
case 215:
return "\\xD7";
case 216:
return "\\xD8";
case 217:
return "\\xD9";
case 218:
return "\\xDA";
case 219:
return "\\xDB";
case 220:
return "\\xDC";
case 221:
return "\\xDD";
case 222:
return "\\xDE";
case 223:
return "\\xDF";
case 224:
return "\\xE0";
case 225:
return "\\xE1";
case 226:
return "\\xE2";
case 227:
return "\\xE3";
case 228:
return "\\xE4";
case 229:
return "\\xE5";
case 230:
return "\\xE6";
case 231:
return "\\xE7";
case 232:
return "\\xE8";
case 233:
return "\\xE9";
case 234:
return "\\xEA";
case 235:
return "\\xEB";
case 236:
return "\\xEC";
case 237:
return "\\xED";
case 238:
return "\\xEE";
case 239:
return "\\xEF";
case 240:
return "\\xF0";
case 241:
return "\\xF1";
case 242:
return "\\xF2";
case 243:
return "\\xF3";
case 244:
return "\\xF4";
case 245:
return "\\xF5";
case 246:
return "\\xF6";
case 247:
return "\\xF7";
case 248:
return "\\xF8";
case 249:
return "\\xF9";
case 250:
return "\\xFA";
case 251:
return "\\xFB";
case 252:
return "\\xFC";
case 253:
return "\\xFD";
case 254:
return "\\xFE";
case 255:
return "\\xFF";
default:
assert(0); /* never gets here */
return "dead code";
}
assert(0); /* never gets here */
}
#endif /* XML_DTD */
static unsigned long
getDebugLevel(const char *variableName, unsigned long defaultDebugLevel) {
const char *const valueOrNull = getenv(variableName);
if (valueOrNull == NULL) {
return defaultDebugLevel;
}
const char *const value = valueOrNull;
errno = 0;
char *afterValue = (char *)value;
unsigned long debugLevel = strtoul(value, &afterValue, 10);
if ((errno != 0) || (afterValue[0] != '\0')) {
errno = 0;
return defaultDebugLevel;
}
return debugLevel;
}
lib/xmlrole.c
+11 -6
View File
@@ -7,7 +7,14 @@
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2002 Greg Stein <gstein@users.sourceforge.net>
Copyright (c) 2002-2006 Karl Waclawek <karl@waclawek.net>
Copyright (c) 2002-2003 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
Copyright (c) 2005-2009 Steven Solie <ssolie@users.sourceforge.net>
Copyright (c) 2016-2021 Sebastian Pipping <sebastian@pipping.org>
Copyright (c) 2017 Rhodri James <rhodri@wildebeest.org.uk>
Copyright (c) 2019 David Loffredo <loffredo@steptools.com>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
@@ -34,11 +41,9 @@
#ifdef _WIN32
# include "winconfig.h"
#else
# ifdef HAVE_EXPAT_CONFIG_H
# include <expat_config.h>
# endif
#endif /* ndef _WIN32 */
#endif
#include <expat_config.h>
#include "expat_external.h"
#include "internal.h"
lib/xmlrole.h
+4 -1
View File
@@ -7,7 +7,10 @@
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2002 Karl Waclawek <karl@waclawek.net>
Copyright (c) 2002 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
Copyright (c) 2017 Sebastian Pipping <sebastian@pipping.org>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
lib/xmltok.c
+25 -17
View File
@@ -7,7 +7,19 @@
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2001-2003 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
Copyright (c) 2002 Greg Stein <gstein@users.sourceforge.net>
Copyright (c) 2002-2016 Karl Waclawek <karl@waclawek.net>
Copyright (c) 2005-2009 Steven Solie <ssolie@users.sourceforge.net>
Copyright (c) 2016-2021 Sebastian Pipping <sebastian@pipping.org>
Copyright (c) 2016 Pascal Cuoq <cuoq@trust-in-soft.com>
Copyright (c) 2016 Don Lewis <truckman@apache.org>
Copyright (c) 2017 Rhodri James <rhodri@wildebeest.org.uk>
Copyright (c) 2017 Alexander Bluhm <alexander.bluhm@gmx.net>
Copyright (c) 2017 Benbuck Nason <bnason@netflix.com>
Copyright (c) 2017 José Gutiérrez de la Concha <jose@zeroc.com>
Copyright (c) 2019 David Loffredo <loffredo@steptools.com>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
@@ -32,23 +44,13 @@
#include <stddef.h>
#include <string.h> /* memcpy */
#if defined(_MSC_VER) && (_MSC_VER <= 1700)
/* for vs2012/11.0/1700 and earlier Visual Studio compilers */
# define bool int
# define false 0
# define true 1
#else
# include <stdbool.h>
#endif
#include <stdbool.h>
#ifdef _WIN32
# include "winconfig.h"
#else
# ifdef HAVE_EXPAT_CONFIG_H
# include <expat_config.h>
# endif
#endif /* ndef _WIN32 */
#endif
#include <expat_config.h>
#include "expat_external.h"
#include "internal.h"
@@ -269,8 +271,14 @@ sb_byteToAscii(const ENCODING *enc, const char *p) {
#define IS_NAME_CHAR(enc, p, n) (AS_NORMAL_ENCODING(enc)->isName##n(enc, p))
#define IS_NMSTRT_CHAR(enc, p, n) (AS_NORMAL_ENCODING(enc)->isNmstrt##n(enc, p))
#define IS_INVALID_CHAR(enc, p, n) \
(AS_NORMAL_ENCODING(enc)->isInvalid##n(enc, p))
#ifdef XML_MIN_SIZE
# define IS_INVALID_CHAR(enc, p, n) \
(AS_NORMAL_ENCODING(enc)->isInvalid##n \
&& AS_NORMAL_ENCODING(enc)->isInvalid##n(enc, p))
#else
# define IS_INVALID_CHAR(enc, p, n) \
(AS_NORMAL_ENCODING(enc)->isInvalid##n(enc, p))
#endif
#ifdef XML_MIN_SIZE
# define IS_NAME_CHAR_MINBPC(enc, p) \
lib/xmltok.h
+5 -1
View File
@@ -7,7 +7,11 @@
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2002 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
Copyright (c) 2002-2005 Karl Waclawek <karl@waclawek.net>
Copyright (c) 2016-2017 Sebastian Pipping <sebastian@pipping.org>
Copyright (c) 2017 Rhodri James <rhodri@wildebeest.org.uk>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
lib/xmltok_impl.c
+11 -3
View File
@@ -1,4 +1,4 @@
/* This file is included!
/* This file is included (from xmltok.c, 1-3 times depending on XML_MIN_SIZE)!
__ __ _
___\ \/ /_ __ __ _| |_
/ _ \\ /| '_ \ / _` | __|
@@ -7,7 +7,15 @@
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2002 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
Copyright (c) 2002-2016 Karl Waclawek <karl@waclawek.net>
Copyright (c) 2016-2021 Sebastian Pipping <sebastian@pipping.org>
Copyright (c) 2017 Rhodri James <rhodri@wildebeest.org.uk>
Copyright (c) 2018 Benjamin Peterson <benjamin@python.org>
Copyright (c) 2018 Anton Maklakov <antmak.pub@gmail.com>
Copyright (c) 2019 David Loffredo <loffredo@steptools.com>
Copyright (c) 2020 Boris Kolpackov <boris@codesynthesis.com>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
@@ -32,7 +40,7 @@
#ifdef XML_TOK_IMPL_C
# ifndef IS_INVALID_CHAR
# ifndef IS_INVALID_CHAR // i.e. for UTF-16 and XML_MIN_SIZE not defined
# define IS_INVALID_CHAR(enc, ptr, n) (0)
# endif
lib/xmltok_impl.h
+2 -1
View File
@@ -7,7 +7,8 @@
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2017-2019 Sebastian Pipping <sebastian@pipping.org>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining
lib/xmltok_ns.c
+5 -1
View File
@@ -7,7 +7,11 @@
|_| XML parser
Copyright (c) 1997-2000 Thai Open Source Software Center Ltd
Copyright (c) 2000-2017 Expat development team
Copyright (c) 2000 Clark Cooper <coopercc@users.sourceforge.net>
Copyright (c) 2002 Greg Stein <gstein@users.sourceforge.net>
Copyright (c) 2002 Fred L. Drake, Jr. <fdrake@users.sourceforge.net>
Copyright (c) 2002-2006 Karl Waclawek <karl@waclawek.net>
Copyright (c) 2017 Sebastian Pipping <sebastian@pipping.org>
Licensed under the MIT license:
Permission is hereby granted, free of charge, to any person obtaining