1 /* internal.h 2 3 Internal definitions used by Expat. This is not needed to compile 4 client code. 5 6 The following calling convention macros are defined for frequently 7 called functions: 8 9 FASTCALL - Used for those internal functions that have a simple 10 body and a low number of arguments and local variables. 11 12 PTRCALL - Used for functions called though function pointers. 13 14 PTRFASTCALL - Like PTRCALL, but for low number of arguments. 15 16 inline - Used for selected internal functions for which inlining 17 may improve performance on some platforms. 18 19 Note: Use of these macros is based on judgement, not hard rules, 20 and therefore subject to change. 21 __ __ _ 22 ___\ \/ /_ __ __ _| |_ 23 / _ \\ /| '_ \ / _` | __| 24 | __// \| |_) | (_| | |_ 25 \___/_/\_\ .__/ \__,_|\__| 26 |_| XML parser 27 28 Copyright (c) 2002-2003 Fred L. Drake, Jr. <fdrake@users.sourceforge.net> 29 Copyright (c) 2002-2006 Karl Waclawek <karl@waclawek.net> 30 Copyright (c) 2003 Greg Stein <gstein@users.sourceforge.net> 31 Copyright (c) 2016-2025 Sebastian Pipping <sebastian@pipping.org> 32 Copyright (c) 2018 Yury Gribov <tetra2005@gmail.com> 33 Copyright (c) 2019 David Loffredo <loffredo@steptools.com> 34 Copyright (c) 2023-2024 Sony Corporation / Snild Dolkow <snild@sony.com> 35 Copyright (c) 2024 Taichi Haradaguchi <20001722@ymail.ne.jp> 36 Licensed under the MIT license: 37 38 Permission is hereby granted, free of charge, to any person obtaining 39 a copy of this software and associated documentation files (the 40 "Software"), to deal in the Software without restriction, including 41 without limitation the rights to use, copy, modify, merge, publish, 42 distribute, sublicense, and/or sell copies of the Software, and to permit 43 persons to whom the Software is furnished to do so, subject to the 44 following conditions: 45 46 The above copyright notice and this permission notice shall be included 47 in all copies or substantial portions of the Software. 48 49 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 50 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 51 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN 52 NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 53 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 54 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 55 USE OR OTHER DEALINGS IN THE SOFTWARE. 56 */ 57 58 #if defined(__GNUC__) && defined(__i386__) && ! defined(__MINGW32__) 59 /* We'll use this version by default only where we know it helps. 60 61 regparm() generates warnings on Solaris boxes. See SF bug #692878. 62 63 Instability reported with egcs on a RedHat Linux 7.3. 64 Let's comment out: 65 #define FASTCALL __attribute__((stdcall, regparm(3))) 66 and let's try this: 67 */ 68 # define FASTCALL __attribute__((regparm(3))) 69 # define PTRFASTCALL __attribute__((regparm(3))) 70 #endif 71 72 /* Using __fastcall seems to have an unexpected negative effect under 73 MS VC++, especially for function pointers, so we won't use it for 74 now on that platform. It may be reconsidered for a future release 75 if it can be made more effective. 76 Likely reason: __fastcall on Windows is like stdcall, therefore 77 the compiler cannot perform stack optimizations for call clusters. 78 */ 79 80 /* Make sure all of these are defined if they aren't already. */ 81 82 #ifndef FASTCALL 83 # define FASTCALL 84 #endif 85 86 #ifndef PTRCALL 87 # define PTRCALL 88 #endif 89 90 #ifndef PTRFASTCALL 91 # define PTRFASTCALL 92 #endif 93 94 #ifndef XML_MIN_SIZE 95 # if ! defined(__cplusplus) && ! defined(inline) 96 # ifdef __GNUC__ 97 # define inline __inline 98 # endif /* __GNUC__ */ 99 # endif 100 #endif /* XML_MIN_SIZE */ 101 102 #ifdef __cplusplus 103 # define inline inline 104 #else 105 # ifndef inline 106 # define inline 107 # endif 108 #endif 109 110 #include <limits.h> // ULONG_MAX 111 112 #if defined(_WIN32) \ 113 && (! defined(__USE_MINGW_ANSI_STDIO) \ 114 || (1 - __USE_MINGW_ANSI_STDIO - 1 == 0)) 115 # define EXPAT_FMT_ULL(midpart) "%" midpart "I64u" 116 # if defined(_WIN64) // Note: modifiers "td" and "zu" do not work for MinGW 117 # define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "I64d" 118 # define EXPAT_FMT_SIZE_T(midpart) "%" midpart "I64u" 119 # else 120 # define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "d" 121 # define EXPAT_FMT_SIZE_T(midpart) "%" midpart "u" 122 # endif 123 #else 124 # define EXPAT_FMT_ULL(midpart) "%" midpart "llu" 125 # if ! defined(ULONG_MAX) 126 # error Compiler did not define ULONG_MAX for us 127 # elif ULONG_MAX == 18446744073709551615u // 2^64-1 128 # define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "ld" 129 # define EXPAT_FMT_SIZE_T(midpart) "%" midpart "lu" 130 # elif defined(EMSCRIPTEN) // 32bit mode Emscripten 131 # define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "ld" 132 # define EXPAT_FMT_SIZE_T(midpart) "%" midpart "zu" 133 # else 134 # define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "d" 135 # define EXPAT_FMT_SIZE_T(midpart) "%" midpart "u" 136 # endif 137 #endif 138 139 #ifndef UNUSED_P 140 # define UNUSED_P(p) (void)p 141 #endif 142 143 /* NOTE BEGIN If you ever patch these defaults to greater values 144 for non-attack XML payload in your environment, 145 please file a bug report with libexpat. Thank you! 146 */ 147 #define EXPAT_BILLION_LAUGHS_ATTACK_PROTECTION_MAXIMUM_AMPLIFICATION_DEFAULT \ 148 100.0f 149 #define EXPAT_BILLION_LAUGHS_ATTACK_PROTECTION_ACTIVATION_THRESHOLD_DEFAULT \ 150 8388608 // 8 MiB, 2^23 151 /* NOTE END */ 152 153 #include "expat.h" // so we can use type XML_Parser below 154 155 #ifdef __cplusplus 156 extern "C" { 157 #endif 158 159 void _INTERNAL_trim_to_complete_utf8_characters(const char *from, 160 const char **fromLimRef); 161 162 #if defined(XML_GE) && XML_GE == 1 163 unsigned long long testingAccountingGetCountBytesDirect(XML_Parser parser); 164 unsigned long long testingAccountingGetCountBytesIndirect(XML_Parser parser); 165 const char *unsignedCharToPrintable(unsigned char c); 166 #endif 167 168 extern 169 #if ! defined(XML_TESTING) 170 const 171 #endif 172 XML_Bool g_reparseDeferralEnabledDefault; // written ONLY in runtests.c 173 #if defined(XML_TESTING) 174 extern unsigned int g_bytesScanned; // used for testing only 175 #endif 176 177 #ifdef __cplusplus 178 } 179 #endif 180