1 | #ifndef __CURL_TYPECHECK_GCC_H
|
---|
2 | #define __CURL_TYPECHECK_GCC_H
|
---|
3 | /***************************************************************************
|
---|
4 | * _ _ ____ _
|
---|
5 | * Project ___| | | | _ \| |
|
---|
6 | * / __| | | | |_) | |
|
---|
7 | * | (__| |_| | _ <| |___
|
---|
8 | * \___|\___/|_| \_\_____|
|
---|
9 | *
|
---|
10 | * Copyright (C) 1998 - 2008, Daniel Stenberg, <daniel@haxx.se>, et al.
|
---|
11 | *
|
---|
12 | * This software is licensed as described in the file COPYING, which
|
---|
13 | * you should have received as part of this distribution. The terms
|
---|
14 | * are also available at http://curl.haxx.se/docs/copyright.html.
|
---|
15 | *
|
---|
16 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
---|
17 | * copies of the Software, and permit persons to whom the Software is
|
---|
18 | * furnished to do so, under the terms of the COPYING file.
|
---|
19 | *
|
---|
20 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
---|
21 | * KIND, either express or implied.
|
---|
22 | *
|
---|
23 | * $Id: typecheck-gcc.h,v 1.1 2008-12-12 16:46:08 ovyn Exp $
|
---|
24 | ***************************************************************************/
|
---|
25 |
|
---|
26 | /* wraps curl_easy_setopt() with typechecking */
|
---|
27 |
|
---|
28 | /* To add a new kind of warning, add an
|
---|
29 | * if(_curl_is_sometype_option(_curl_opt) && ! _curl_is_sometype(value))
|
---|
30 | * _curl_easy_setopt_err_sometype();
|
---|
31 | * block and define _curl_is_sometype_option, _curl_is_sometype and
|
---|
32 | * _curl_easy_setopt_err_sometype below
|
---|
33 | *
|
---|
34 | * To add an option that uses the same type as an existing option, you'll just
|
---|
35 | * need to extend the appropriate _curl_*_option macro
|
---|
36 | */
|
---|
37 | #define curl_easy_setopt(handle, option, value) \
|
---|
38 | __extension__ ({ \
|
---|
39 | __typeof__ (option) _curl_opt = option; \
|
---|
40 | if (__builtin_constant_p(_curl_opt)) { \
|
---|
41 | if (_curl_is_long_option(_curl_opt) && !_curl_is_long(value)) \
|
---|
42 | _curl_easy_setopt_err_long(); \
|
---|
43 | if (_curl_is_off_t_option(_curl_opt) && !_curl_is_off_t(value)) \
|
---|
44 | _curl_easy_setopt_err_curl_off_t(); \
|
---|
45 | if (_curl_is_string_option(_curl_opt) && !_curl_is_string(value)) \
|
---|
46 | _curl_easy_setopt_err_string(); \
|
---|
47 | if (_curl_is_write_cb_option(_curl_opt) && !_curl_is_write_cb(value)) \
|
---|
48 | _curl_easy_setopt_err_write_callback(); \
|
---|
49 | if ((_curl_opt) == CURLOPT_READFUNCTION && !_curl_is_read_cb(value)) \
|
---|
50 | _curl_easy_setopt_err_read_cb(); \
|
---|
51 | if ((_curl_opt) == CURLOPT_IOCTLFUNCTION && !_curl_is_ioctl_cb(value)) \
|
---|
52 | _curl_easy_setopt_err_ioctl_cb(); \
|
---|
53 | if ((_curl_opt) == CURLOPT_SOCKOPTFUNCTION && !_curl_is_sockopt_cb(value))\
|
---|
54 | _curl_easy_setopt_err_sockopt_cb(); \
|
---|
55 | if ((_curl_opt) == CURLOPT_OPENSOCKETFUNCTION && \
|
---|
56 | !_curl_is_opensocket_cb(value)) \
|
---|
57 | _curl_easy_setopt_err_opensocket_cb(); \
|
---|
58 | if ((_curl_opt) == CURLOPT_PROGRESSFUNCTION && \
|
---|
59 | !_curl_is_progress_cb(value)) \
|
---|
60 | _curl_easy_setopt_err_progress_cb(); \
|
---|
61 | if ((_curl_opt) == CURLOPT_DEBUGFUNCTION && !_curl_is_debug_cb(value)) \
|
---|
62 | _curl_easy_setopt_err_debug_cb(); \
|
---|
63 | if ((_curl_opt) == CURLOPT_SSL_CTX_FUNCTION && \
|
---|
64 | !_curl_is_ssl_ctx_cb(value)) \
|
---|
65 | _curl_easy_setopt_err_ssl_ctx_cb(); \
|
---|
66 | if (_curl_is_conv_cb_option(_curl_opt) && !_curl_is_conv_cb(value)) \
|
---|
67 | _curl_easy_setopt_err_conv_cb(); \
|
---|
68 | if ((_curl_opt) == CURLOPT_SEEKFUNCTION && !_curl_is_seek_cb(value)) \
|
---|
69 | _curl_easy_setopt_err_seek_cb(); \
|
---|
70 | if (_curl_is_cb_data_option(_curl_opt) && !_curl_is_cb_data(value)) \
|
---|
71 | _curl_easy_setopt_err_cb_data(); \
|
---|
72 | if ((_curl_opt) == CURLOPT_ERRORBUFFER && !_curl_is_error_buffer(value)) \
|
---|
73 | _curl_easy_setopt_err_error_buffer(); \
|
---|
74 | if ((_curl_opt) == CURLOPT_STDERR && !_curl_is_FILE(value)) \
|
---|
75 | _curl_easy_setopt_err_FILE(); \
|
---|
76 | if (_curl_is_postfields_option(_curl_opt) && !_curl_is_postfields(value)) \
|
---|
77 | _curl_easy_setopt_err_postfields(); \
|
---|
78 | if ((_curl_opt) == CURLOPT_HTTPPOST && \
|
---|
79 | !_curl_is_arr((value), struct curl_httppost)) \
|
---|
80 | _curl_easy_setopt_err_curl_httpost(); \
|
---|
81 | if (_curl_is_slist_option(_curl_opt) && \
|
---|
82 | !_curl_is_arr((value), struct curl_slist)) \
|
---|
83 | _curl_easy_setopt_err_curl_slist(); \
|
---|
84 | if ((_curl_opt) == CURLOPT_SHARE && !_curl_is_ptr((value), CURLSH)) \
|
---|
85 | _curl_easy_setopt_err_CURLSH(); \
|
---|
86 | } \
|
---|
87 | curl_easy_setopt(handle, _curl_opt, value); \
|
---|
88 | })
|
---|
89 |
|
---|
90 | /* wraps curl_easy_getinfo() with typechecking */
|
---|
91 | /* FIXME: don't allow const pointers */
|
---|
92 | #define curl_easy_getinfo(handle, info, arg) \
|
---|
93 | __extension__ ({ \
|
---|
94 | __typeof__ (info) _curl_info = info; \
|
---|
95 | if (__builtin_constant_p(_curl_info)) { \
|
---|
96 | if (_curl_is_string_info(_curl_info) && !_curl_is_arr((arg), char *)) \
|
---|
97 | _curl_easy_getinfo_err_string(); \
|
---|
98 | if (_curl_is_long_info(_curl_info) && !_curl_is_arr((arg), long)) \
|
---|
99 | _curl_easy_getinfo_err_long(); \
|
---|
100 | if (_curl_is_double_info(_curl_info) && !_curl_is_arr((arg), double)) \
|
---|
101 | _curl_easy_getinfo_err_double(); \
|
---|
102 | if (_curl_is_slist_info(_curl_info) && \
|
---|
103 | !_curl_is_arr((arg), struct curl_slist *)) \
|
---|
104 | _curl_easy_getinfo_err_curl_slist(); \
|
---|
105 | } \
|
---|
106 | curl_easy_getinfo(handle, _curl_info, arg); \
|
---|
107 | })
|
---|
108 |
|
---|
109 | /* TODO: typechecking for curl_share_setopt() and curl_multi_setopt(),
|
---|
110 | * for now just make sure that the functions are called with three
|
---|
111 | * arguments
|
---|
112 | */
|
---|
113 | #define curl_share_setopt(share,opt,param) curl_share_setopt(share,opt,param)
|
---|
114 | #define curl_multi_setopt(handle,opt,param) curl_multi_setopt(handle,opt,param)
|
---|
115 |
|
---|
116 |
|
---|
117 | /* the actual warnings, triggered by calling the _curl_easy_setopt_err*
|
---|
118 | * functions */
|
---|
119 |
|
---|
120 | /* To define a new warning, use _CURL_WARNING(identifier, "message") */
|
---|
121 | #define _CURL_WARNING(id, message) \
|
---|
122 | static void __attribute__((warning(message))) __attribute__((unused)) \
|
---|
123 | __attribute__((noinline)) id(void) { __asm__(""); }
|
---|
124 |
|
---|
125 | _CURL_WARNING(_curl_easy_setopt_err_long,
|
---|
126 | "curl_easy_setopt expects a long argument for this option")
|
---|
127 | _CURL_WARNING(_curl_easy_setopt_err_curl_off_t,
|
---|
128 | "curl_easy_setopt expects a curl_off_t argument for this option")
|
---|
129 | _CURL_WARNING(_curl_easy_setopt_err_string,
|
---|
130 | "curl_easy_setopt expects a string (char* or char[]) argument for this option"
|
---|
131 | )
|
---|
132 | _CURL_WARNING(_curl_easy_setopt_err_write_callback,
|
---|
133 | "curl_easy_setopt expects a curl_write_callback argument for this option")
|
---|
134 | _CURL_WARNING(_curl_easy_setopt_err_read_cb,
|
---|
135 | "curl_easy_setopt expects a curl_read_callback argument for this option")
|
---|
136 | _CURL_WARNING(_curl_easy_setopt_err_ioctl_cb,
|
---|
137 | "curl_easy_setopt expects a curl_ioctl_callback argument for this option")
|
---|
138 | _CURL_WARNING(_curl_easy_setopt_err_sockopt_cb,
|
---|
139 | "curl_easy_setopt expects a curl_sockopt_callback argument for this option")
|
---|
140 | _CURL_WARNING(_curl_easy_setopt_err_opensocket_cb,
|
---|
141 | "curl_easy_setopt expects a curl_opensocket_callback argument for this option"
|
---|
142 | )
|
---|
143 | _CURL_WARNING(_curl_easy_setopt_err_progress_cb,
|
---|
144 | "curl_easy_setopt expects a curl_progress_callback argument for this option")
|
---|
145 | _CURL_WARNING(_curl_easy_setopt_err_debug_cb,
|
---|
146 | "curl_easy_setopt expects a curl_debug_callback argument for this option")
|
---|
147 | _CURL_WARNING(_curl_easy_setopt_err_ssl_ctx_cb,
|
---|
148 | "curl_easy_setopt expects a curl_ssl_ctx_callback argument for this option")
|
---|
149 | _CURL_WARNING(_curl_easy_setopt_err_conv_cb,
|
---|
150 | "curl_easy_setopt expects a curl_conv_callback argument for this option")
|
---|
151 | _CURL_WARNING(_curl_easy_setopt_err_seek_cb,
|
---|
152 | "curl_easy_setopt expects a curl_seek_callback argument for this option")
|
---|
153 | _CURL_WARNING(_curl_easy_setopt_err_cb_data,
|
---|
154 | "curl_easy_setopt expects a private data pointer as argument for this option")
|
---|
155 | _CURL_WARNING(_curl_easy_setopt_err_error_buffer,
|
---|
156 | "curl_easy_setopt expects a char buffer of CURL_ERROR_SIZE as argument for this option")
|
---|
157 | _CURL_WARNING(_curl_easy_setopt_err_FILE,
|
---|
158 | "curl_easy_setopt expects a FILE* argument for this option")
|
---|
159 | _CURL_WARNING(_curl_easy_setopt_err_postfields,
|
---|
160 | "curl_easy_setopt expects a void* or char* argument for this option")
|
---|
161 | _CURL_WARNING(_curl_easy_setopt_err_curl_httpost,
|
---|
162 | "curl_easy_setopt expects a struct curl_httppost* argument for this option")
|
---|
163 | _CURL_WARNING(_curl_easy_setopt_err_curl_slist,
|
---|
164 | "curl_easy_setopt expects a struct curl_slist* argument for this option")
|
---|
165 | _CURL_WARNING(_curl_easy_setopt_err_CURLSH,
|
---|
166 | "curl_easy_setopt expects a CURLSH* argument for this option")
|
---|
167 |
|
---|
168 | _CURL_WARNING(_curl_easy_getinfo_err_string,
|
---|
169 | "curl_easy_getinfo expects a pointer to char * for this info")
|
---|
170 | _CURL_WARNING(_curl_easy_getinfo_err_long,
|
---|
171 | "curl_easy_getinfo expects a pointer to long for this info")
|
---|
172 | _CURL_WARNING(_curl_easy_getinfo_err_double,
|
---|
173 | "curl_easy_getinfo expects a pointer to double for this info")
|
---|
174 | _CURL_WARNING(_curl_easy_getinfo_err_curl_slist,
|
---|
175 | "curl_easy_getinfo expects a pointer to struct curl_slist * for this info")
|
---|
176 |
|
---|
177 | /* groups of curl_easy_setops options that take the same type of argument */
|
---|
178 |
|
---|
179 | /* To add a new option to one of the groups, just add
|
---|
180 | * (option) == CURLOPT_SOMETHING
|
---|
181 | * to the or-expression. If the option takes a long or curl_off_t, you don't
|
---|
182 | * have to do anything
|
---|
183 | */
|
---|
184 |
|
---|
185 | /* evaluates to true if option takes a long argument */
|
---|
186 | #define _curl_is_long_option(option) \
|
---|
187 | (0 < (option) && (option) < CURLOPTTYPE_OBJECTPOINT)
|
---|
188 |
|
---|
189 | #define _curl_is_off_t_option(option) \
|
---|
190 | ((option) > CURLOPTTYPE_OFF_T)
|
---|
191 |
|
---|
192 | /* evaluates to true if option takes a char* argument */
|
---|
193 | #define _curl_is_string_option(option) \
|
---|
194 | ((option) == CURLOPT_URL || \
|
---|
195 | (option) == CURLOPT_PROXY || \
|
---|
196 | (option) == CURLOPT_INTERFACE || \
|
---|
197 | (option) == CURLOPT_NETRC_FILE || \
|
---|
198 | (option) == CURLOPT_USERPWD || \
|
---|
199 | (option) == CURLOPT_PROXYUSERPWD || \
|
---|
200 | (option) == CURLOPT_ENCODING || \
|
---|
201 | (option) == CURLOPT_REFERER || \
|
---|
202 | (option) == CURLOPT_USERAGENT || \
|
---|
203 | (option) == CURLOPT_COOKIE || \
|
---|
204 | (option) == CURLOPT_COOKIEFILE || \
|
---|
205 | (option) == CURLOPT_COOKIEJAR || \
|
---|
206 | (option) == CURLOPT_COOKIELIST || \
|
---|
207 | (option) == CURLOPT_FTPPORT || \
|
---|
208 | (option) == CURLOPT_FTP_ALTERNATIVE_TO_USER || \
|
---|
209 | (option) == CURLOPT_FTP_ACCOUNT || \
|
---|
210 | (option) == CURLOPT_RANGE || \
|
---|
211 | (option) == CURLOPT_CUSTOMREQUEST || \
|
---|
212 | (option) == CURLOPT_SSLCERT || \
|
---|
213 | (option) == CURLOPT_SSLCERTTYPE || \
|
---|
214 | (option) == CURLOPT_SSLKEY || \
|
---|
215 | (option) == CURLOPT_SSLKEYTYPE || \
|
---|
216 | (option) == CURLOPT_KEYPASSWD || \
|
---|
217 | (option) == CURLOPT_SSLENGINE || \
|
---|
218 | (option) == CURLOPT_CAINFO || \
|
---|
219 | (option) == CURLOPT_CAPATH || \
|
---|
220 | (option) == CURLOPT_RANDOM_FILE || \
|
---|
221 | (option) == CURLOPT_EGDSOCKET || \
|
---|
222 | (option) == CURLOPT_SSL_CIPHER_LIST || \
|
---|
223 | (option) == CURLOPT_KRBLEVEL || \
|
---|
224 | (option) == CURLOPT_SSH_HOST_PUBLIC_KEY_MD5 || \
|
---|
225 | (option) == CURLOPT_SSH_PUBLIC_KEYFILE || \
|
---|
226 | (option) == CURLOPT_SSH_PRIVATE_KEYFILE || \
|
---|
227 | 0)
|
---|
228 |
|
---|
229 | /* evaluates to true if option takes a curl_write_callback argument */
|
---|
230 | #define _curl_is_write_cb_option(option) \
|
---|
231 | ((option) == CURLOPT_HEADERFUNCTION || \
|
---|
232 | (option) == CURLOPT_WRITEFUNCTION)
|
---|
233 |
|
---|
234 | /* evaluates to true if option takes a curl_conv_callback argument */
|
---|
235 | #define _curl_is_conv_cb_option(option) \
|
---|
236 | ((option) == CURLOPT_CONV_TO_NETWORK_FUNCTION || \
|
---|
237 | (option) == CURLOPT_CONV_FROM_NETWORK_FUNCTION || \
|
---|
238 | (option) == CURLOPT_CONV_FROM_UTF8_FUNCTION)
|
---|
239 |
|
---|
240 | /* evaluates to true if option takes a data argument to pass to a callback */
|
---|
241 | #define _curl_is_cb_data_option(option) \
|
---|
242 | ((option) == CURLOPT_WRITEDATA || \
|
---|
243 | (option) == CURLOPT_READDATA || \
|
---|
244 | (option) == CURLOPT_IOCTLDATA || \
|
---|
245 | (option) == CURLOPT_SOCKOPTDATA || \
|
---|
246 | (option) == CURLOPT_OPENSOCKETDATA || \
|
---|
247 | (option) == CURLOPT_PROGRESSDATA || \
|
---|
248 | (option) == CURLOPT_WRITEHEADER || \
|
---|
249 | (option) == CURLOPT_DEBUGDATA || \
|
---|
250 | (option) == CURLOPT_SSL_CTX_DATA || \
|
---|
251 | (option) == CURLOPT_SEEKDATA || \
|
---|
252 | (option) == CURLOPT_PRIVATE || \
|
---|
253 | 0)
|
---|
254 |
|
---|
255 | /* evaluates to true if option takes a POST data argument (void* or char*) */
|
---|
256 | #define _curl_is_postfields_option(option) \
|
---|
257 | ((option) == CURLOPT_POSTFIELDS || \
|
---|
258 | (option) == CURLOPT_COPYPOSTFIELDS || \
|
---|
259 | 0)
|
---|
260 |
|
---|
261 | /* evaluates to true if option takes a struct curl_slist * argument */
|
---|
262 | #define _curl_is_slist_option(option) \
|
---|
263 | ((option) == CURLOPT_HTTPHEADER || \
|
---|
264 | (option) == CURLOPT_HTTP200ALIASES || \
|
---|
265 | (option) == CURLOPT_QUOTE || \
|
---|
266 | (option) == CURLOPT_POSTQUOTE || \
|
---|
267 | (option) == CURLOPT_PREQUOTE || \
|
---|
268 | (option) == CURLOPT_TELNETOPTIONS || \
|
---|
269 | 0)
|
---|
270 |
|
---|
271 | /* groups of curl_easy_getinfo infos that take the same type of argument */
|
---|
272 |
|
---|
273 | /* evaluates to true if info expects a pointer to char * argument */
|
---|
274 | #define _curl_is_string_info(info) \
|
---|
275 | (CURLINFO_STRING < (info) && (info) < CURLINFO_LONG)
|
---|
276 |
|
---|
277 | /* evaluates to true if info expects a pointer to long argument */
|
---|
278 | #define _curl_is_long_info(info) \
|
---|
279 | (CURLINFO_LONG < (info) && (info) < CURLINFO_DOUBLE)
|
---|
280 |
|
---|
281 | /* evaluates to true if info expects a pointer to double argument */
|
---|
282 | #define _curl_is_double_info(info) \
|
---|
283 | (CURLINFO_DOUBLE < (info) && (info) < CURLINFO_SLIST)
|
---|
284 |
|
---|
285 | /* true if info expects a pointer to struct curl_slist * argument */
|
---|
286 | #define _curl_is_slist_info(info) \
|
---|
287 | (CURLINFO_SLIST < (info))
|
---|
288 |
|
---|
289 |
|
---|
290 | /* typecheck helpers -- check whether given expression has requested type*/
|
---|
291 |
|
---|
292 | /* For pointers, you can use the _curl_is_ptr/_curl_is_arr macros,
|
---|
293 | * otherwise define a new macro. Search for __builtin_types_compatible_p
|
---|
294 | * in the GCC manual.
|
---|
295 | * NOTE: these macros MUST NOT EVALUATE their arguments! The argument is
|
---|
296 | * the actual expression passed to the curl_easy_setopt macro. This
|
---|
297 | * means that you can only apply the sizeof and __typeof__ operators, no
|
---|
298 | * == or whatsoever.
|
---|
299 | */
|
---|
300 |
|
---|
301 | /* XXX: should evaluate to true iff expr is a pointer */
|
---|
302 | #define _curl_is_any_ptr(expr) \
|
---|
303 | (sizeof(expr) == sizeof(void*))
|
---|
304 |
|
---|
305 | /* evaluates to true if expr is NULL */
|
---|
306 | /* XXX: must not evaluate expr, so this check is not accurate */
|
---|
307 | #define _curl_is_NULL(expr) \
|
---|
308 | (__builtin_types_compatible_p(__typeof__(expr), __typeof__(NULL)))
|
---|
309 |
|
---|
310 | /* evaluates to true if expr is type*, const type* or NULL */
|
---|
311 | #define _curl_is_ptr(expr, type) \
|
---|
312 | (_curl_is_NULL(expr) || \
|
---|
313 | __builtin_types_compatible_p(__typeof__(expr), type *) || \
|
---|
314 | __builtin_types_compatible_p(__typeof__(expr), const type *))
|
---|
315 |
|
---|
316 | /* evaluates to true if expr is one of type[], type*, NULL or const type* */
|
---|
317 | #define _curl_is_arr(expr, type) \
|
---|
318 | (_curl_is_ptr((expr), type) || \
|
---|
319 | __builtin_types_compatible_p(__typeof__(expr), type []))
|
---|
320 |
|
---|
321 | /* evaluates to true if expr is a string */
|
---|
322 | #define _curl_is_string(expr) \
|
---|
323 | (_curl_is_arr((expr), char) || \
|
---|
324 | _curl_is_arr((expr), signed char) || \
|
---|
325 | _curl_is_arr((expr), unsigned char))
|
---|
326 |
|
---|
327 | /* evaluates to true if expr is a long (no matter the signedness)
|
---|
328 | * XXX: for now, int is also accepted (and therefore short and char, which
|
---|
329 | * are promoted to int when passed to a variadic function) */
|
---|
330 | #define _curl_is_long(expr) \
|
---|
331 | (__builtin_types_compatible_p(__typeof__(expr), long) || \
|
---|
332 | __builtin_types_compatible_p(__typeof__(expr), signed long) || \
|
---|
333 | __builtin_types_compatible_p(__typeof__(expr), unsigned long) || \
|
---|
334 | __builtin_types_compatible_p(__typeof__(expr), int) || \
|
---|
335 | __builtin_types_compatible_p(__typeof__(expr), signed int) || \
|
---|
336 | __builtin_types_compatible_p(__typeof__(expr), unsigned int) || \
|
---|
337 | __builtin_types_compatible_p(__typeof__(expr), short) || \
|
---|
338 | __builtin_types_compatible_p(__typeof__(expr), signed short) || \
|
---|
339 | __builtin_types_compatible_p(__typeof__(expr), unsigned short) || \
|
---|
340 | __builtin_types_compatible_p(__typeof__(expr), char) || \
|
---|
341 | __builtin_types_compatible_p(__typeof__(expr), signed char) || \
|
---|
342 | __builtin_types_compatible_p(__typeof__(expr), unsigned char))
|
---|
343 |
|
---|
344 | /* evaluates to true if expr is of type curl_off_t */
|
---|
345 | #define _curl_is_off_t(expr) \
|
---|
346 | (__builtin_types_compatible_p(__typeof__(expr), curl_off_t))
|
---|
347 |
|
---|
348 | /* evaluates to true if expr is abuffer suitable for CURLOPT_ERRORBUFFER */
|
---|
349 | /* XXX: also check size of an char[] array? */
|
---|
350 | #define _curl_is_error_buffer(expr) \
|
---|
351 | (__builtin_types_compatible_p(__typeof__(expr), char *) || \
|
---|
352 | __builtin_types_compatible_p(__typeof__(expr), char[]))
|
---|
353 |
|
---|
354 | /* evaluates to true if expr is of type (const) void* or (const) FILE* */
|
---|
355 | #if 0
|
---|
356 | #define _curl_is_cb_data(expr) \
|
---|
357 | (_curl_is_ptr((expr), void) || \
|
---|
358 | _curl_is_ptr((expr), FILE))
|
---|
359 | #else /* be less strict */
|
---|
360 | #define _curl_is_cb_data(expr) \
|
---|
361 | _curl_is_any_ptr(expr)
|
---|
362 | #endif
|
---|
363 |
|
---|
364 | /* evaluates to true if expr is of type FILE* */
|
---|
365 | #define _curl_is_FILE(expr) \
|
---|
366 | (__builtin_types_compatible_p(__typeof__(expr), FILE *))
|
---|
367 |
|
---|
368 | /* evaluates to true if expr can be passed as POST data (void* or char*) */
|
---|
369 | #define _curl_is_postfields(expr) \
|
---|
370 | (_curl_is_ptr((expr), void) || \
|
---|
371 | _curl_is_arr((expr), char))
|
---|
372 |
|
---|
373 | /* FIXME: the whole callback checking is messy...
|
---|
374 | * The idea is to tolerate char vs. void and const vs. not const
|
---|
375 | * pointers in arguments at least
|
---|
376 | */
|
---|
377 | /* helper: __builtin_types_compatible_p distinguishes between functions and
|
---|
378 | * function pointers, hide it */
|
---|
379 | #define _curl_callback_compatible(func, type) \
|
---|
380 | (__builtin_types_compatible_p(__typeof__(func), type) || \
|
---|
381 | __builtin_types_compatible_p(__typeof__(func), type*))
|
---|
382 |
|
---|
383 | /* evaluates to true if expr is of type curl_read_callback or "similar" */
|
---|
384 | #define _curl_is_read_cb(expr) \
|
---|
385 | (_curl_is_NULL(expr) || \
|
---|
386 | __builtin_types_compatible_p(__typeof__(expr), __typeof__(fread)) || \
|
---|
387 | __builtin_types_compatible_p(__typeof__(expr), curl_read_callback) || \
|
---|
388 | _curl_callback_compatible((expr), _curl_read_callback1) || \
|
---|
389 | _curl_callback_compatible((expr), _curl_read_callback2) || \
|
---|
390 | _curl_callback_compatible((expr), _curl_read_callback3) || \
|
---|
391 | _curl_callback_compatible((expr), _curl_read_callback4) || \
|
---|
392 | _curl_callback_compatible((expr), _curl_read_callback5) || \
|
---|
393 | _curl_callback_compatible((expr), _curl_read_callback6))
|
---|
394 | typedef size_t (_curl_read_callback1)(char *, size_t, size_t, void*);
|
---|
395 | typedef size_t (_curl_read_callback2)(char *, size_t, size_t, const void*);
|
---|
396 | typedef size_t (_curl_read_callback3)(char *, size_t, size_t, FILE*);
|
---|
397 | typedef size_t (_curl_read_callback4)(void *, size_t, size_t, void*);
|
---|
398 | typedef size_t (_curl_read_callback5)(void *, size_t, size_t, const void*);
|
---|
399 | typedef size_t (_curl_read_callback6)(void *, size_t, size_t, FILE*);
|
---|
400 |
|
---|
401 | /* evaluates to true if expr is of type curl_write_callback or "similar" */
|
---|
402 | #define _curl_is_write_cb(expr) \
|
---|
403 | (_curl_is_read_cb(expr) || \
|
---|
404 | __builtin_types_compatible_p(__typeof__(expr), __typeof__(fwrite)) || \
|
---|
405 | __builtin_types_compatible_p(__typeof__(expr), curl_write_callback) || \
|
---|
406 | _curl_callback_compatible((expr), _curl_write_callback1) || \
|
---|
407 | _curl_callback_compatible((expr), _curl_write_callback2) || \
|
---|
408 | _curl_callback_compatible((expr), _curl_write_callback3) || \
|
---|
409 | _curl_callback_compatible((expr), _curl_write_callback4) || \
|
---|
410 | _curl_callback_compatible((expr), _curl_write_callback5) || \
|
---|
411 | _curl_callback_compatible((expr), _curl_write_callback6))
|
---|
412 | typedef size_t (_curl_write_callback1)(const char *, size_t, size_t, void*);
|
---|
413 | typedef size_t (_curl_write_callback2)(const char *, size_t, size_t,
|
---|
414 | const void*);
|
---|
415 | typedef size_t (_curl_write_callback3)(const char *, size_t, size_t, FILE*);
|
---|
416 | typedef size_t (_curl_write_callback4)(const void *, size_t, size_t, void*);
|
---|
417 | typedef size_t (_curl_write_callback5)(const void *, size_t, size_t,
|
---|
418 | const void*);
|
---|
419 | typedef size_t (_curl_write_callback6)(const void *, size_t, size_t, FILE*);
|
---|
420 |
|
---|
421 | /* evaluates to true if expr is of type curl_ioctl_callback or "similar" */
|
---|
422 | #define _curl_is_ioctl_cb(expr) \
|
---|
423 | (_curl_is_NULL(expr) || \
|
---|
424 | __builtin_types_compatible_p(__typeof__(expr), curl_ioctl_callback) || \
|
---|
425 | _curl_callback_compatible((expr), _curl_ioctl_callback1) || \
|
---|
426 | _curl_callback_compatible((expr), _curl_ioctl_callback2) || \
|
---|
427 | _curl_callback_compatible((expr), _curl_ioctl_callback3) || \
|
---|
428 | _curl_callback_compatible((expr), _curl_ioctl_callback4))
|
---|
429 | typedef curlioerr (_curl_ioctl_callback1)(CURL *, int, void*);
|
---|
430 | typedef curlioerr (_curl_ioctl_callback2)(CURL *, int, const void*);
|
---|
431 | typedef curlioerr (_curl_ioctl_callback3)(CURL *, curliocmd, void*);
|
---|
432 | typedef curlioerr (_curl_ioctl_callback4)(CURL *, curliocmd, const void*);
|
---|
433 |
|
---|
434 | /* evaluates to true if expr is of type curl_sockopt_callback or "similar" */
|
---|
435 | #define _curl_is_sockopt_cb(expr) \
|
---|
436 | (_curl_is_NULL(expr) || \
|
---|
437 | __builtin_types_compatible_p(__typeof__(expr), curl_sockopt_callback) || \
|
---|
438 | _curl_callback_compatible((expr), _curl_sockopt_callback1) || \
|
---|
439 | _curl_callback_compatible((expr), _curl_sockopt_callback2))
|
---|
440 | typedef int (_curl_sockopt_callback1)(void *, curl_socket_t, curlsocktype);
|
---|
441 | typedef int (_curl_sockopt_callback2)(const void *, curl_socket_t,
|
---|
442 | curlsocktype);
|
---|
443 |
|
---|
444 | /* evaluates to true if expr is of type curl_opensocket_callback or "similar" */
|
---|
445 | #define _curl_is_opensocket_cb(expr) \
|
---|
446 | (_curl_is_NULL(expr) || \
|
---|
447 | __builtin_types_compatible_p(__typeof__(expr), curl_opensocket_callback) ||\
|
---|
448 | _curl_callback_compatible((expr), _curl_opensocket_callback1) || \
|
---|
449 | _curl_callback_compatible((expr), _curl_opensocket_callback2) || \
|
---|
450 | _curl_callback_compatible((expr), _curl_opensocket_callback3) || \
|
---|
451 | _curl_callback_compatible((expr), _curl_opensocket_callback4))
|
---|
452 | typedef curl_socket_t (_curl_opensocket_callback1)
|
---|
453 | (void *, curlsocktype, struct curl_sockaddr *);
|
---|
454 | typedef curl_socket_t (_curl_opensocket_callback2)
|
---|
455 | (void *, curlsocktype, const struct curl_sockaddr *);
|
---|
456 | typedef curl_socket_t (_curl_opensocket_callback3)
|
---|
457 | (const void *, curlsocktype, struct curl_sockaddr *);
|
---|
458 | typedef curl_socket_t (_curl_opensocket_callback4)
|
---|
459 | (const void *, curlsocktype, const struct curl_sockaddr *);
|
---|
460 |
|
---|
461 | /* evaluates to true if expr is of type curl_progress_callback or "similar" */
|
---|
462 | #define _curl_is_progress_cb(expr) \
|
---|
463 | (_curl_is_NULL(expr) || \
|
---|
464 | __builtin_types_compatible_p(__typeof__(expr), curl_progress_callback) || \
|
---|
465 | _curl_callback_compatible((expr), _curl_progress_callback1) || \
|
---|
466 | _curl_callback_compatible((expr), _curl_progress_callback2))
|
---|
467 | typedef int (_curl_progress_callback1)(void *,
|
---|
468 | double, double, double, double);
|
---|
469 | typedef int (_curl_progress_callback2)(const void *,
|
---|
470 | double, double, double, double);
|
---|
471 |
|
---|
472 | /* evaluates to true if expr is of type curl_debug_callback or "similar" */
|
---|
473 | #define _curl_is_debug_cb(expr) \
|
---|
474 | (_curl_is_NULL(expr) || \
|
---|
475 | __builtin_types_compatible_p(__typeof__(expr), curl_debug_callback) || \
|
---|
476 | _curl_callback_compatible((expr), _curl_debug_callback1) || \
|
---|
477 | _curl_callback_compatible((expr), _curl_debug_callback2) || \
|
---|
478 | _curl_callback_compatible((expr), _curl_debug_callback3) || \
|
---|
479 | _curl_callback_compatible((expr), _curl_debug_callback4))
|
---|
480 | typedef int (_curl_debug_callback1) (CURL *,
|
---|
481 | curl_infotype, char *, size_t, void *);
|
---|
482 | typedef int (_curl_debug_callback2) (CURL *,
|
---|
483 | curl_infotype, char *, size_t, const void *);
|
---|
484 | typedef int (_curl_debug_callback3) (CURL *,
|
---|
485 | curl_infotype, const char *, size_t, void *);
|
---|
486 | typedef int (_curl_debug_callback4) (CURL *,
|
---|
487 | curl_infotype, const char *, size_t, const void *);
|
---|
488 |
|
---|
489 | /* evaluates to true if expr is of type curl_ssl_ctx_callback or "similar" */
|
---|
490 | /* this is getting even messier... */
|
---|
491 | #define _curl_is_ssl_ctx_cb(expr) \
|
---|
492 | (_curl_is_NULL(expr) || \
|
---|
493 | __builtin_types_compatible_p(__typeof__(expr), curl_ssl_ctx_callback) || \
|
---|
494 | _curl_callback_compatible((expr), _curl_ssl_ctx_callback1) || \
|
---|
495 | _curl_callback_compatible((expr), _curl_ssl_ctx_callback2) || \
|
---|
496 | _curl_callback_compatible((expr), _curl_ssl_ctx_callback3) || \
|
---|
497 | _curl_callback_compatible((expr), _curl_ssl_ctx_callback4) || \
|
---|
498 | _curl_callback_compatible((expr), _curl_ssl_ctx_callback5) || \
|
---|
499 | _curl_callback_compatible((expr), _curl_ssl_ctx_callback6) || \
|
---|
500 | _curl_callback_compatible((expr), _curl_ssl_ctx_callback7) || \
|
---|
501 | _curl_callback_compatible((expr), _curl_ssl_ctx_callback8))
|
---|
502 | typedef CURLcode (_curl_ssl_ctx_callback1)(CURL *, void *, void *);
|
---|
503 | typedef CURLcode (_curl_ssl_ctx_callback2)(CURL *, void *, const void *);
|
---|
504 | typedef CURLcode (_curl_ssl_ctx_callback3)(CURL *, const void *, void *);
|
---|
505 | typedef CURLcode (_curl_ssl_ctx_callback4)(CURL *, const void *, const void *);
|
---|
506 | #ifdef HEADER_SSL_H
|
---|
507 | /* hack: if we included OpenSSL's ssl.h, we know about SSL_CTX
|
---|
508 | * this will of course break if we're included before OpenSSL headers...
|
---|
509 | */
|
---|
510 | typedef CURLcode (_curl_ssl_ctx_callback5)(CURL *, SSL_CTX, void *);
|
---|
511 | typedef CURLcode (_curl_ssl_ctx_callback6)(CURL *, SSL_CTX, const void *);
|
---|
512 | typedef CURLcode (_curl_ssl_ctx_callback7)(CURL *, const SSL_CTX, void *);
|
---|
513 | typedef CURLcode (_curl_ssl_ctx_callback8)(CURL *, const SSL_CTX, const void *);
|
---|
514 | #else
|
---|
515 | typedef _curl_ssl_ctx_callback1 _curl_ssl_ctx_callback5;
|
---|
516 | typedef _curl_ssl_ctx_callback1 _curl_ssl_ctx_callback6;
|
---|
517 | typedef _curl_ssl_ctx_callback1 _curl_ssl_ctx_callback7;
|
---|
518 | typedef _curl_ssl_ctx_callback1 _curl_ssl_ctx_callback8;
|
---|
519 | #endif
|
---|
520 |
|
---|
521 | /* evaluates to true if expr is of type curl_conv_callback or "similar" */
|
---|
522 | #define _curl_is_conv_cb(expr) \
|
---|
523 | (_curl_is_NULL(expr) || \
|
---|
524 | __builtin_types_compatible_p(__typeof__(expr), curl_conv_callback) || \
|
---|
525 | _curl_callback_compatible((expr), _curl_conv_callback1) || \
|
---|
526 | _curl_callback_compatible((expr), _curl_conv_callback2) || \
|
---|
527 | _curl_callback_compatible((expr), _curl_conv_callback3) || \
|
---|
528 | _curl_callback_compatible((expr), _curl_conv_callback4))
|
---|
529 | typedef CURLcode (*_curl_conv_callback1)(char *, size_t length);
|
---|
530 | typedef CURLcode (*_curl_conv_callback2)(const char *, size_t length);
|
---|
531 | typedef CURLcode (*_curl_conv_callback3)(void *, size_t length);
|
---|
532 | typedef CURLcode (*_curl_conv_callback4)(const void *, size_t length);
|
---|
533 |
|
---|
534 | /* evaluates to true if expr is of type curl_seek_callback or "similar" */
|
---|
535 | #define _curl_is_seek_cb(expr) \
|
---|
536 | (_curl_is_NULL(expr) || \
|
---|
537 | __builtin_types_compatible_p(__typeof__(expr), curl_seek_callback) || \
|
---|
538 | _curl_callback_compatible((expr), _curl_seek_callback1) || \
|
---|
539 | _curl_callback_compatible((expr), _curl_seek_callback2))
|
---|
540 | typedef CURLcode (*_curl_seek_callback1)(void *, curl_off_t, int);
|
---|
541 | typedef CURLcode (*_curl_seek_callback2)(const void *, curl_off_t, int);
|
---|
542 |
|
---|
543 |
|
---|
544 | #endif /* __CURL_TYPECHECK_GCC_H */
|
---|