summaryrefslogtreecommitdiffstats
path: root/Utilities/cmcurl/include/curl/curlrules.h
blob: 7c2ede35b63a7540acd042ce5c2b27a70c982d02 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
#ifndef __CURL_CURLRULES_H
#define __CURL_CURLRULES_H
/***************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
 *
 * This software is licensed as described in the file COPYING, which
 * you should have received as part of this distribution. The terms
 * are also available at http://curl.haxx.se/docs/copyright.html.
 *
 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
 * copies of the Software, and permit persons to whom the Software is
 * furnished to do so, under the terms of the COPYING file.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ***************************************************************************/

/* ================================================================ */
/*                    COMPILE TIME SANITY CHECKS                    */
/* ================================================================ */

/*
 * NOTE 1:
 * -------
 *
 * All checks done in this file are intentionally placed in a public
 * header file which is pulled by curl/curl.h when an application is
 * being built using an already built libcurl library. Additionally
 * this file is also included and used when building the library.
 *
 * If compilation fails on this file it is certainly sure that the
 * problem is elsewhere. It could be a problem in the curlbuild.h
 * header file, or simply that you are using different compilation
 * settings than those used to build the library.
 *
 * Nothing in this file is intended to be modified or adjusted by the
 * curl library user nor by the curl library builder.
 *
 * Do not deactivate any check, these are done to make sure that the
 * library is properly built and used.
 *
 * You can find further help on the libcurl development mailing list:
 * http://cool.haxx.se/mailman/listinfo/curl-library/
 *
 * NOTE 2
 * ------
 *
 * Some of the following compile time checks are based on the fact
 * that the dimension of a constant array can not be a negative one.
 * In this way if the compile time verification fails, the compilation
 * will fail issuing an error. The error description wording is compiler
 * dependent but it will be quite similar to one of the following:
 *
 *   "negative subscript or subscript is too large"
 *   "array must have at least one element"
 *   "-1 is an illegal array size"
 *   "size of array is negative"
 *
 * If you are building an application which tries to use an already
 * built libcurl library and you are getting this kind of errors on
 * this file, it is a clear indication that there is a mismatch between
 * how the library was built and how you are trying to use it for your
 * application. Your already compiled or binary library provider is the
 * only one who can give you the details you need to properly use it.
 */

/*
 * Verify that some macros are actually defined.
 */

#ifndef CURL_SIZEOF_LONG
#  error "CURL_SIZEOF_LONG definition is missing!"
   Error Compilation_aborted_CURL_SIZEOF_LONG_is_missing
#endif

#ifndef CURL_TYPEOF_CURL_SOCKLEN_T
#  error "CURL_TYPEOF_CURL_SOCKLEN_T definition is missing!"
   Error Compilation_aborted_CURL_TYPEOF_CURL_SOCKLEN_T_is_missing
#endif

#ifndef CURL_SIZEOF_CURL_SOCKLEN_T
#  error "CURL_SIZEOF_CURL_SOCKLEN_T definition is missing!"
   Error Compilation_aborted_CURL_SIZEOF_CURL_SOCKLEN_T_is_missing
#endif

#ifndef CURL_TYPEOF_CURL_OFF_T
#  error "CURL_TYPEOF_CURL_OFF_T definition is missing!"
   Error Compilation_aborted_CURL_TYPEOF_CURL_OFF_T_is_missing
#endif

#ifndef CURL_FORMAT_CURL_OFF_T
#  error "CURL_FORMAT_CURL_OFF_T definition is missing!"
   Error Compilation_aborted_CURL_FORMAT_CURL_OFF_T_is_missing
#endif

#ifndef CURL_FORMAT_CURL_OFF_TU
#  error "CURL_FORMAT_CURL_OFF_TU definition is missing!"
   Error Compilation_aborted_CURL_FORMAT_CURL_OFF_TU_is_missing
#endif

#ifndef CURL_FORMAT_OFF_T
#  error "CURL_FORMAT_OFF_T definition is missing!"
   Error Compilation_aborted_CURL_FORMAT_OFF_T_is_missing
#endif

#ifndef CURL_SIZEOF_CURL_OFF_T
#  error "CURL_SIZEOF_CURL_OFF_T definition is missing!"
   Error Compilation_aborted_CURL_SIZEOF_CURL_OFF_T_is_missing
#endif

#ifndef CURL_SUFFIX_CURL_OFF_T
#  error "CURL_SUFFIX_CURL_OFF_T definition is missing!"
   Error Compilation_aborted_CURL_SUFFIX_CURL_OFF_T_is_missing
#endif

#ifndef CURL_SUFFIX_CURL_OFF_TU
#  error "CURL_SUFFIX_CURL_OFF_TU definition is missing!"
   Error Compilation_aborted_CURL_SUFFIX_CURL_OFF_TU_is_missing
#endif

/*
 * Macros private to this header file.
 */

#define CurlchkszEQ(t, s) sizeof(t) == s ? 1 : -1

#define CurlchkszGE(t1, t2) sizeof(t1) >= sizeof(t2) ? 1 : -1

/*
 * Verify that the size previously defined and expected for long
 * is the same as the one reported by sizeof() at compile time.
 */

typedef char
  __curl_rule_01__
    [CurlchkszEQ(long, CURL_SIZEOF_LONG)];

/*
 * Verify that the size previously defined and expected for
 * curl_off_t is actually the the same as the one reported
 * by sizeof() at compile time.
 */

typedef char
  __curl_rule_02__
    [CurlchkszEQ(curl_off_t, CURL_SIZEOF_CURL_OFF_T)];

/*
 * Verify at compile time that the size of curl_off_t as reported
 * by sizeof() is greater or equal than the one reported for long
 * for the current compilation.
 */

typedef char
  __curl_rule_03__
    [CurlchkszGE(curl_off_t, long)];

/*
 * Verify that the size previously defined and expected for
 * curl_socklen_t is actually the the same as the one reported
 * by sizeof() at compile time.
 */

typedef char
  __curl_rule_04__
    [CurlchkszEQ(curl_socklen_t, CURL_SIZEOF_CURL_SOCKLEN_T)];

/*
 * Verify at compile time that the size of curl_socklen_t as reported
 * by sizeof() is greater or equal than the one reported for int for
 * the current compilation.
 */

typedef char
  __curl_rule_05__
    [CurlchkszGE(curl_socklen_t, int)];

/* ================================================================ */
/*          EXTERNALLY AND INTERNALLY VISIBLE DEFINITIONS           */
/* ================================================================ */

/*
 * CURL_ISOCPP and CURL_OFF_T_C definitions are done here in order to allow
 * these to be visible and exported by the external libcurl interface API,
 * while also making them visible to the library internals, simply including
 * curl_setup.h, without actually needing to include curl.h internally.
 * If some day this section would grow big enough, all this should be moved
 * to its own header file.
 */

/*
 * Figure out if we can use the ## preprocessor operator, which is supported
 * by ISO/ANSI C and C++. Some compilers support it without setting __STDC__
 * or  __cplusplus so we need to carefully check for them too.
 */

#if defined(__STDC__) || defined(_MSC_VER) || defined(__cplusplus) || \
  defined(__HP_aCC) || defined(__BORLANDC__) || defined(__LCC__) || \
  defined(__POCC__) || defined(__SALFORDC__) || defined(__HIGHC__) || \
  defined(__ILEC400__)
  /* This compiler is believed to have an ISO compatible preprocessor */
#define CURL_ISOCPP
#else
  /* This compiler is believed NOT to have an ISO compatible preprocessor */
#undef CURL_ISOCPP
#endif

/*
 * Macros for minimum-width signed and unsigned curl_off_t integer constants.
 */

#if defined(__BORLANDC__) && (__BORLANDC__ == 0x0551)
#  define __CURL_OFF_T_C_HLPR2(x) x
#  define __CURL_OFF_T_C_HLPR1(x) __CURL_OFF_T_C_HLPR2(x)
#  define CURL_OFF_T_C(Val)  __CURL_OFF_T_C_HLPR1(Val) ## \
                             __CURL_OFF_T_C_HLPR1(CURL_SUFFIX_CURL_OFF_T)
#  define CURL_OFF_TU_C(Val) __CURL_OFF_T_C_HLPR1(Val) ## \
                             __CURL_OFF_T_C_HLPR1(CURL_SUFFIX_CURL_OFF_TU)
#else
#  ifdef CURL_ISOCPP
#    define __CURL_OFF_T_C_HLPR2(Val,Suffix) Val ## Suffix
#  else
#    define __CURL_OFF_T_C_HLPR2(Val,Suffix) Val/**/Suffix
#  endif
#  define __CURL_OFF_T_C_HLPR1(Val,Suffix) __CURL_OFF_T_C_HLPR2(Val,Suffix)
#  define CURL_OFF_T_C(Val)  __CURL_OFF_T_C_HLPR1(Val,CURL_SUFFIX_CURL_OFF_T)
#  define CURL_OFF_TU_C(Val) __CURL_OFF_T_C_HLPR1(Val,CURL_SUFFIX_CURL_OFF_TU)
#endif

/*
 * Get rid of macros private to this header file.
 */

#undef CurlchkszEQ
#undef CurlchkszGE

/*
 * Get rid of macros not intended to exist beyond this point.
 */

#undef CURL_PULL_WS2TCPIP_H
#undef CURL_PULL_SYS_TYPES_H
#undef CURL_PULL_SYS_SOCKET_H
#undef CURL_PULL_SYS_POLL_H
#undef CURL_PULL_STDINT_H
#undef CURL_PULL_INTTYPES_H

#undef CURL_TYPEOF_CURL_SOCKLEN_T
#undef CURL_TYPEOF_CURL_OFF_T

#ifdef CURL_NO_OLDIES
#undef CURL_FORMAT_OFF_T /* not required since 7.19.0 - obsoleted in 7.20.0 */
#endif

#endif /* __CURL_CURLRULES_H */