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) 2016-2022 Sebastian Pipping <sebastian@pipping.org>
32 Copyright (c) 2018 Yury Gribov <tetra2005@gmail.com>
33 Copyright (c) 2019 David Loffredo <loffredo@steptools.com>
34 Licensed under the MIT license:
35
36 Permission is hereby granted, free of charge, to any person obtaining
37 a copy of this software and associated documentation files (the
38 "Software"), to deal in the Software without restriction, including
39 without limitation the rights to use, copy, modify, merge, publish,
40 distribute, sublicense, and/or sell copies of the Software, and to permit
41 persons to whom the Software is furnished to do so, subject to the
42 following conditions:
43
44 The above copyright notice and this permission notice shall be included
45 in all copies or substantial portions of the Software.
46
47 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
48 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
49 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
50 NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
51 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
52 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
53 USE OR OTHER DEALINGS IN THE SOFTWARE.
54 */
55
56 #if defined(__GNUC__) && defined(__i386__) && ! defined(__MINGW32__)
57 /* We'll use this version by default only where we know it helps.
58
59 regparm() generates warnings on Solaris boxes. See SF bug #692878.
60
61 Instability reported with egcs on a RedHat Linux 7.3.
62 Let's comment out:
63 #define FASTCALL __attribute__((stdcall, regparm(3)))
64 and let's try this:
65 */
66 # define FASTCALL __attribute__((regparm(3)))
67 # define PTRFASTCALL __attribute__((regparm(3)))
68 #endif
69
70 /* Using __fastcall seems to have an unexpected negative effect under
71 MS VC++, especially for function pointers, so we won't use it for
72 now on that platform. It may be reconsidered for a future release
73 if it can be made more effective.
74 Likely reason: __fastcall on Windows is like stdcall, therefore
75 the compiler cannot perform stack optimizations for call clusters.
76 */
77
78 /* Make sure all of these are defined if they aren't already. */
79
80 #ifndef FASTCALL
81 # define FASTCALL
82 #endif
83
84 #ifndef PTRCALL
85 # define PTRCALL
86 #endif
87
88 #ifndef PTRFASTCALL
89 # define PTRFASTCALL
90 #endif
91
92 #ifndef XML_MIN_SIZE
93 # if ! defined(__cplusplus) && ! defined(inline)
94 # ifdef __GNUC__
95 # define inline __inline
96 # endif /* __GNUC__ */
97 # endif
98 #endif /* XML_MIN_SIZE */
99
100 #ifdef __cplusplus
101 # define inline inline
102 #else
103 # ifndef inline
104 # define inline
105 # endif
106 #endif
107
108 #include <limits.h> // ULONG_MAX
109
110 #if defined(_WIN32) \
111 && (! defined(__USE_MINGW_ANSI_STDIO) \
112 || (1 - __USE_MINGW_ANSI_STDIO - 1 == 0))
113 # define EXPAT_FMT_ULL(midpart) "%" midpart "I64u"
114 # if defined(_WIN64) // Note: modifiers "td" and "zu" do not work for MinGW
115 # define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "I64d"
116 # define EXPAT_FMT_SIZE_T(midpart) "%" midpart "I64u"
117 # else
118 # define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "d"
119 # define EXPAT_FMT_SIZE_T(midpart) "%" midpart "u"
120 # endif
121 #else
122 # define EXPAT_FMT_ULL(midpart) "%" midpart "llu"
123 # if ! defined(ULONG_MAX)
124 # error Compiler did not define ULONG_MAX for us
125 # elif ULONG_MAX == 18446744073709551615u // 2^64-1
126 # define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "ld"
127 # define EXPAT_FMT_SIZE_T(midpart) "%" midpart "lu"
128 # else
129 # define EXPAT_FMT_PTRDIFF_T(midpart) "%" midpart "d"
130 # define EXPAT_FMT_SIZE_T(midpart) "%" midpart "u"
131 # endif
132 #endif
133
134 #ifndef UNUSED_P
135 # define UNUSED_P(p) (void)p
136 #endif
137
138 /* NOTE BEGIN If you ever patch these defaults to greater values
139 for non-attack XML payload in your environment,
140 please file a bug report with libexpat. Thank you!
141 */
142 #define EXPAT_BILLION_LAUGHS_ATTACK_PROTECTION_MAXIMUM_AMPLIFICATION_DEFAULT \
143 100.0f
144 #define EXPAT_BILLION_LAUGHS_ATTACK_PROTECTION_ACTIVATION_THRESHOLD_DEFAULT \
145 8388608 // 8 MiB, 2^23
146 /* NOTE END */
147
148 #include "expat.h" // so we can use type XML_Parser below
149
150 #ifdef __cplusplus
151 extern "C" {
152 #endif
153
154 void _INTERNAL_trim_to_complete_utf8_characters(const char *from,
155 const char **fromLimRef);
156
157 #if defined(XML_DTD)
158 unsigned long long testingAccountingGetCountBytesDirect(XML_Parser parser);
159 unsigned long long testingAccountingGetCountBytesIndirect(XML_Parser parser);
160 const char *unsignedCharToPrintable(unsigned char c);
161 #endif
162
163 #ifdef __cplusplus
164 }
165 #endif