Line data Source code
1 : #ifndef __CURL_TYPECHECK_GCC_H
2 : #define __CURL_TYPECHECK_GCC_H
3 : /***************************************************************************
4 : * _ _ ____ _
5 : * Project ___| | | | _ \| |
6 : * / __| | | | |_) | |
7 : * | (__| |_| | _ <| |___
8 : * \___|\___/|_| \_\_____|
9 : *
10 : * Copyright (C) 1998 - 2009, 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 1.9 2009-01-25 23:26:31 bagder 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 0 : _CURL_WARNING(_curl_easy_setopt_err_long,
126 : "curl_easy_setopt expects a long argument for this option")
127 0 : _CURL_WARNING(_curl_easy_setopt_err_curl_off_t,
128 : "curl_easy_setopt expects a curl_off_t argument for this option")
129 0 : _CURL_WARNING(_curl_easy_setopt_err_string,
130 : "curl_easy_setopt expects a string (char* or char[]) argument for this option"
131 : )
132 0 : _CURL_WARNING(_curl_easy_setopt_err_write_callback,
133 : "curl_easy_setopt expects a curl_write_callback argument for this option")
134 0 : _CURL_WARNING(_curl_easy_setopt_err_read_cb,
135 : "curl_easy_setopt expects a curl_read_callback argument for this option")
136 0 : _CURL_WARNING(_curl_easy_setopt_err_ioctl_cb,
137 : "curl_easy_setopt expects a curl_ioctl_callback argument for this option")
138 0 : _CURL_WARNING(_curl_easy_setopt_err_sockopt_cb,
139 : "curl_easy_setopt expects a curl_sockopt_callback argument for this option")
140 0 : _CURL_WARNING(_curl_easy_setopt_err_opensocket_cb,
141 : "curl_easy_setopt expects a curl_opensocket_callback argument for this option"
142 : )
143 0 : _CURL_WARNING(_curl_easy_setopt_err_progress_cb,
144 : "curl_easy_setopt expects a curl_progress_callback argument for this option")
145 0 : _CURL_WARNING(_curl_easy_setopt_err_debug_cb,
146 : "curl_easy_setopt expects a curl_debug_callback argument for this option")
147 0 : _CURL_WARNING(_curl_easy_setopt_err_ssl_ctx_cb,
148 : "curl_easy_setopt expects a curl_ssl_ctx_callback argument for this option")
149 0 : _CURL_WARNING(_curl_easy_setopt_err_conv_cb,
150 : "curl_easy_setopt expects a curl_conv_callback argument for this option")
151 0 : _CURL_WARNING(_curl_easy_setopt_err_seek_cb,
152 : "curl_easy_setopt expects a curl_seek_callback argument for this option")
153 0 : _CURL_WARNING(_curl_easy_setopt_err_cb_data,
154 : "curl_easy_setopt expects a private data pointer as argument for this option")
155 0 : _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 0 : _CURL_WARNING(_curl_easy_setopt_err_FILE,
158 : "curl_easy_setopt expects a FILE* argument for this option")
159 0 : _CURL_WARNING(_curl_easy_setopt_err_postfields,
160 : "curl_easy_setopt expects a void* or char* argument for this option")
161 0 : _CURL_WARNING(_curl_easy_setopt_err_curl_httpost,
162 : "curl_easy_setopt expects a struct curl_httppost* argument for this option")
163 0 : _CURL_WARNING(_curl_easy_setopt_err_curl_slist,
164 : "curl_easy_setopt expects a struct curl_slist* argument for this option")
165 0 : _CURL_WARNING(_curl_easy_setopt_err_CURLSH,
166 : "curl_easy_setopt expects a CURLSH* argument for this option")
167 :
168 0 : _CURL_WARNING(_curl_easy_getinfo_err_string,
169 : "curl_easy_getinfo expects a pointer to char * for this info")
170 0 : _CURL_WARNING(_curl_easy_getinfo_err_long,
171 : "curl_easy_getinfo expects a pointer to long for this info")
172 0 : _CURL_WARNING(_curl_easy_getinfo_err_double,
173 : "curl_easy_getinfo expects a pointer to double for this info")
174 0 : _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_USERNAME || \
200 : (option) == CURLOPT_PASSWORD || \
201 : (option) == CURLOPT_PROXYUSERPWD || \
202 : (option) == CURLOPT_PROXYUSERNAME || \
203 : (option) == CURLOPT_PROXYPASSWORD || \
204 : (option) == CURLOPT_NOPROXY || \
205 : (option) == CURLOPT_ENCODING || \
206 : (option) == CURLOPT_REFERER || \
207 : (option) == CURLOPT_USERAGENT || \
208 : (option) == CURLOPT_COOKIE || \
209 : (option) == CURLOPT_COOKIEFILE || \
210 : (option) == CURLOPT_COOKIEJAR || \
211 : (option) == CURLOPT_COOKIELIST || \
212 : (option) == CURLOPT_FTPPORT || \
213 : (option) == CURLOPT_FTP_ALTERNATIVE_TO_USER || \
214 : (option) == CURLOPT_FTP_ACCOUNT || \
215 : (option) == CURLOPT_RANGE || \
216 : (option) == CURLOPT_CUSTOMREQUEST || \
217 : (option) == CURLOPT_SSLCERT || \
218 : (option) == CURLOPT_SSLCERTTYPE || \
219 : (option) == CURLOPT_SSLKEY || \
220 : (option) == CURLOPT_SSLKEYTYPE || \
221 : (option) == CURLOPT_KEYPASSWD || \
222 : (option) == CURLOPT_SSLENGINE || \
223 : (option) == CURLOPT_CAINFO || \
224 : (option) == CURLOPT_CAPATH || \
225 : (option) == CURLOPT_RANDOM_FILE || \
226 : (option) == CURLOPT_EGDSOCKET || \
227 : (option) == CURLOPT_SSL_CIPHER_LIST || \
228 : (option) == CURLOPT_KRBLEVEL || \
229 : (option) == CURLOPT_SSH_HOST_PUBLIC_KEY_MD5 || \
230 : (option) == CURLOPT_SSH_PUBLIC_KEYFILE || \
231 : (option) == CURLOPT_SSH_PRIVATE_KEYFILE || \
232 : (option) == CURLOPT_CRLFILE || \
233 : (option) == CURLOPT_ISSUERCERT || \
234 : 0)
235 :
236 : /* evaluates to true if option takes a curl_write_callback argument */
237 : #define _curl_is_write_cb_option(option) \
238 : ((option) == CURLOPT_HEADERFUNCTION || \
239 : (option) == CURLOPT_WRITEFUNCTION)
240 :
241 : /* evaluates to true if option takes a curl_conv_callback argument */
242 : #define _curl_is_conv_cb_option(option) \
243 : ((option) == CURLOPT_CONV_TO_NETWORK_FUNCTION || \
244 : (option) == CURLOPT_CONV_FROM_NETWORK_FUNCTION || \
245 : (option) == CURLOPT_CONV_FROM_UTF8_FUNCTION)
246 :
247 : /* evaluates to true if option takes a data argument to pass to a callback */
248 : #define _curl_is_cb_data_option(option) \
249 : ((option) == CURLOPT_WRITEDATA || \
250 : (option) == CURLOPT_READDATA || \
251 : (option) == CURLOPT_IOCTLDATA || \
252 : (option) == CURLOPT_SOCKOPTDATA || \
253 : (option) == CURLOPT_OPENSOCKETDATA || \
254 : (option) == CURLOPT_PROGRESSDATA || \
255 : (option) == CURLOPT_WRITEHEADER || \
256 : (option) == CURLOPT_DEBUGDATA || \
257 : (option) == CURLOPT_SSL_CTX_DATA || \
258 : (option) == CURLOPT_SEEKDATA || \
259 : (option) == CURLOPT_PRIVATE || \
260 : 0)
261 :
262 : /* evaluates to true if option takes a POST data argument (void* or char*) */
263 : #define _curl_is_postfields_option(option) \
264 : ((option) == CURLOPT_POSTFIELDS || \
265 : (option) == CURLOPT_COPYPOSTFIELDS || \
266 : 0)
267 :
268 : /* evaluates to true if option takes a struct curl_slist * argument */
269 : #define _curl_is_slist_option(option) \
270 : ((option) == CURLOPT_HTTPHEADER || \
271 : (option) == CURLOPT_HTTP200ALIASES || \
272 : (option) == CURLOPT_QUOTE || \
273 : (option) == CURLOPT_POSTQUOTE || \
274 : (option) == CURLOPT_PREQUOTE || \
275 : (option) == CURLOPT_TELNETOPTIONS || \
276 : 0)
277 :
278 : /* groups of curl_easy_getinfo infos that take the same type of argument */
279 :
280 : /* evaluates to true if info expects a pointer to char * argument */
281 : #define _curl_is_string_info(info) \
282 : (CURLINFO_STRING < (info) && (info) < CURLINFO_LONG)
283 :
284 : /* evaluates to true if info expects a pointer to long argument */
285 : #define _curl_is_long_info(info) \
286 : (CURLINFO_LONG < (info) && (info) < CURLINFO_DOUBLE)
287 :
288 : /* evaluates to true if info expects a pointer to double argument */
289 : #define _curl_is_double_info(info) \
290 : (CURLINFO_DOUBLE < (info) && (info) < CURLINFO_SLIST)
291 :
292 : /* true if info expects a pointer to struct curl_slist * argument */
293 : #define _curl_is_slist_info(info) \
294 : (CURLINFO_SLIST < (info))
295 :
296 :
297 : /* typecheck helpers -- check whether given expression has requested type*/
298 :
299 : /* For pointers, you can use the _curl_is_ptr/_curl_is_arr macros,
300 : * otherwise define a new macro. Search for __builtin_types_compatible_p
301 : * in the GCC manual.
302 : * NOTE: these macros MUST NOT EVALUATE their arguments! The argument is
303 : * the actual expression passed to the curl_easy_setopt macro. This
304 : * means that you can only apply the sizeof and __typeof__ operators, no
305 : * == or whatsoever.
306 : */
307 :
308 : /* XXX: should evaluate to true iff expr is a pointer */
309 : #define _curl_is_any_ptr(expr) \
310 : (sizeof(expr) == sizeof(void*))
311 :
312 : /* evaluates to true if expr is NULL */
313 : /* XXX: must not evaluate expr, so this check is not accurate */
314 : #define _curl_is_NULL(expr) \
315 : (__builtin_types_compatible_p(__typeof__(expr), __typeof__(NULL)))
316 :
317 : /* evaluates to true if expr is type*, const type* or NULL */
318 : #define _curl_is_ptr(expr, type) \
319 : (_curl_is_NULL(expr) || \
320 : __builtin_types_compatible_p(__typeof__(expr), type *) || \
321 : __builtin_types_compatible_p(__typeof__(expr), const type *))
322 :
323 : /* evaluates to true if expr is one of type[], type*, NULL or const type* */
324 : #define _curl_is_arr(expr, type) \
325 : (_curl_is_ptr((expr), type) || \
326 : __builtin_types_compatible_p(__typeof__(expr), type []))
327 :
328 : /* evaluates to true if expr is a string */
329 : #define _curl_is_string(expr) \
330 : (_curl_is_arr((expr), char) || \
331 : _curl_is_arr((expr), signed char) || \
332 : _curl_is_arr((expr), unsigned char))
333 :
334 : /* evaluates to true if expr is a long (no matter the signedness)
335 : * XXX: for now, int is also accepted (and therefore short and char, which
336 : * are promoted to int when passed to a variadic function) */
337 : #define _curl_is_long(expr) \
338 : (__builtin_types_compatible_p(__typeof__(expr), long) || \
339 : __builtin_types_compatible_p(__typeof__(expr), signed long) || \
340 : __builtin_types_compatible_p(__typeof__(expr), unsigned long) || \
341 : __builtin_types_compatible_p(__typeof__(expr), int) || \
342 : __builtin_types_compatible_p(__typeof__(expr), signed int) || \
343 : __builtin_types_compatible_p(__typeof__(expr), unsigned int) || \
344 : __builtin_types_compatible_p(__typeof__(expr), short) || \
345 : __builtin_types_compatible_p(__typeof__(expr), signed short) || \
346 : __builtin_types_compatible_p(__typeof__(expr), unsigned short) || \
347 : __builtin_types_compatible_p(__typeof__(expr), char) || \
348 : __builtin_types_compatible_p(__typeof__(expr), signed char) || \
349 : __builtin_types_compatible_p(__typeof__(expr), unsigned char))
350 :
351 : /* evaluates to true if expr is of type curl_off_t */
352 : #define _curl_is_off_t(expr) \
353 : (__builtin_types_compatible_p(__typeof__(expr), curl_off_t))
354 :
355 : /* evaluates to true if expr is abuffer suitable for CURLOPT_ERRORBUFFER */
356 : /* XXX: also check size of an char[] array? */
357 : #define _curl_is_error_buffer(expr) \
358 : (__builtin_types_compatible_p(__typeof__(expr), char *) || \
359 : __builtin_types_compatible_p(__typeof__(expr), char[]))
360 :
361 : /* evaluates to true if expr is of type (const) void* or (const) FILE* */
362 : #if 0
363 : #define _curl_is_cb_data(expr) \
364 : (_curl_is_ptr((expr), void) || \
365 : _curl_is_ptr((expr), FILE))
366 : #else /* be less strict */
367 : #define _curl_is_cb_data(expr) \
368 : _curl_is_any_ptr(expr)
369 : #endif
370 :
371 : /* evaluates to true if expr is of type FILE* */
372 : #define _curl_is_FILE(expr) \
373 : (__builtin_types_compatible_p(__typeof__(expr), FILE *))
374 :
375 : /* evaluates to true if expr can be passed as POST data (void* or char*) */
376 : #define _curl_is_postfields(expr) \
377 : (_curl_is_ptr((expr), void) || \
378 : _curl_is_arr((expr), char))
379 :
380 : /* FIXME: the whole callback checking is messy...
381 : * The idea is to tolerate char vs. void and const vs. not const
382 : * pointers in arguments at least
383 : */
384 : /* helper: __builtin_types_compatible_p distinguishes between functions and
385 : * function pointers, hide it */
386 : #define _curl_callback_compatible(func, type) \
387 : (__builtin_types_compatible_p(__typeof__(func), type) || \
388 : __builtin_types_compatible_p(__typeof__(func), type*))
389 :
390 : /* evaluates to true if expr is of type curl_read_callback or "similar" */
391 : #define _curl_is_read_cb(expr) \
392 : (_curl_is_NULL(expr) || \
393 : __builtin_types_compatible_p(__typeof__(expr), __typeof__(fread)) || \
394 : __builtin_types_compatible_p(__typeof__(expr), curl_read_callback) || \
395 : _curl_callback_compatible((expr), _curl_read_callback1) || \
396 : _curl_callback_compatible((expr), _curl_read_callback2) || \
397 : _curl_callback_compatible((expr), _curl_read_callback3) || \
398 : _curl_callback_compatible((expr), _curl_read_callback4) || \
399 : _curl_callback_compatible((expr), _curl_read_callback5) || \
400 : _curl_callback_compatible((expr), _curl_read_callback6))
401 : typedef size_t (_curl_read_callback1)(char *, size_t, size_t, void*);
402 : typedef size_t (_curl_read_callback2)(char *, size_t, size_t, const void*);
403 : typedef size_t (_curl_read_callback3)(char *, size_t, size_t, FILE*);
404 : typedef size_t (_curl_read_callback4)(void *, size_t, size_t, void*);
405 : typedef size_t (_curl_read_callback5)(void *, size_t, size_t, const void*);
406 : typedef size_t (_curl_read_callback6)(void *, size_t, size_t, FILE*);
407 :
408 : /* evaluates to true if expr is of type curl_write_callback or "similar" */
409 : #define _curl_is_write_cb(expr) \
410 : (_curl_is_read_cb(expr) || \
411 : __builtin_types_compatible_p(__typeof__(expr), __typeof__(fwrite)) || \
412 : __builtin_types_compatible_p(__typeof__(expr), curl_write_callback) || \
413 : _curl_callback_compatible((expr), _curl_write_callback1) || \
414 : _curl_callback_compatible((expr), _curl_write_callback2) || \
415 : _curl_callback_compatible((expr), _curl_write_callback3) || \
416 : _curl_callback_compatible((expr), _curl_write_callback4) || \
417 : _curl_callback_compatible((expr), _curl_write_callback5) || \
418 : _curl_callback_compatible((expr), _curl_write_callback6))
419 : typedef size_t (_curl_write_callback1)(const char *, size_t, size_t, void*);
420 : typedef size_t (_curl_write_callback2)(const char *, size_t, size_t,
421 : const void*);
422 : typedef size_t (_curl_write_callback3)(const char *, size_t, size_t, FILE*);
423 : typedef size_t (_curl_write_callback4)(const void *, size_t, size_t, void*);
424 : typedef size_t (_curl_write_callback5)(const void *, size_t, size_t,
425 : const void*);
426 : typedef size_t (_curl_write_callback6)(const void *, size_t, size_t, FILE*);
427 :
428 : /* evaluates to true if expr is of type curl_ioctl_callback or "similar" */
429 : #define _curl_is_ioctl_cb(expr) \
430 : (_curl_is_NULL(expr) || \
431 : __builtin_types_compatible_p(__typeof__(expr), curl_ioctl_callback) || \
432 : _curl_callback_compatible((expr), _curl_ioctl_callback1) || \
433 : _curl_callback_compatible((expr), _curl_ioctl_callback2) || \
434 : _curl_callback_compatible((expr), _curl_ioctl_callback3) || \
435 : _curl_callback_compatible((expr), _curl_ioctl_callback4))
436 : typedef curlioerr (_curl_ioctl_callback1)(CURL *, int, void*);
437 : typedef curlioerr (_curl_ioctl_callback2)(CURL *, int, const void*);
438 : typedef curlioerr (_curl_ioctl_callback3)(CURL *, curliocmd, void*);
439 : typedef curlioerr (_curl_ioctl_callback4)(CURL *, curliocmd, const void*);
440 :
441 : /* evaluates to true if expr is of type curl_sockopt_callback or "similar" */
442 : #define _curl_is_sockopt_cb(expr) \
443 : (_curl_is_NULL(expr) || \
444 : __builtin_types_compatible_p(__typeof__(expr), curl_sockopt_callback) || \
445 : _curl_callback_compatible((expr), _curl_sockopt_callback1) || \
446 : _curl_callback_compatible((expr), _curl_sockopt_callback2))
447 : typedef int (_curl_sockopt_callback1)(void *, curl_socket_t, curlsocktype);
448 : typedef int (_curl_sockopt_callback2)(const void *, curl_socket_t,
449 : curlsocktype);
450 :
451 : /* evaluates to true if expr is of type curl_opensocket_callback or "similar" */
452 : #define _curl_is_opensocket_cb(expr) \
453 : (_curl_is_NULL(expr) || \
454 : __builtin_types_compatible_p(__typeof__(expr), curl_opensocket_callback) ||\
455 : _curl_callback_compatible((expr), _curl_opensocket_callback1) || \
456 : _curl_callback_compatible((expr), _curl_opensocket_callback2) || \
457 : _curl_callback_compatible((expr), _curl_opensocket_callback3) || \
458 : _curl_callback_compatible((expr), _curl_opensocket_callback4))
459 : typedef curl_socket_t (_curl_opensocket_callback1)
460 : (void *, curlsocktype, struct curl_sockaddr *);
461 : typedef curl_socket_t (_curl_opensocket_callback2)
462 : (void *, curlsocktype, const struct curl_sockaddr *);
463 : typedef curl_socket_t (_curl_opensocket_callback3)
464 : (const void *, curlsocktype, struct curl_sockaddr *);
465 : typedef curl_socket_t (_curl_opensocket_callback4)
466 : (const void *, curlsocktype, const struct curl_sockaddr *);
467 :
468 : /* evaluates to true if expr is of type curl_progress_callback or "similar" */
469 : #define _curl_is_progress_cb(expr) \
470 : (_curl_is_NULL(expr) || \
471 : __builtin_types_compatible_p(__typeof__(expr), curl_progress_callback) || \
472 : _curl_callback_compatible((expr), _curl_progress_callback1) || \
473 : _curl_callback_compatible((expr), _curl_progress_callback2))
474 : typedef int (_curl_progress_callback1)(void *,
475 : double, double, double, double);
476 : typedef int (_curl_progress_callback2)(const void *,
477 : double, double, double, double);
478 :
479 : /* evaluates to true if expr is of type curl_debug_callback or "similar" */
480 : #define _curl_is_debug_cb(expr) \
481 : (_curl_is_NULL(expr) || \
482 : __builtin_types_compatible_p(__typeof__(expr), curl_debug_callback) || \
483 : _curl_callback_compatible((expr), _curl_debug_callback1) || \
484 : _curl_callback_compatible((expr), _curl_debug_callback2) || \
485 : _curl_callback_compatible((expr), _curl_debug_callback3) || \
486 : _curl_callback_compatible((expr), _curl_debug_callback4))
487 : typedef int (_curl_debug_callback1) (CURL *,
488 : curl_infotype, char *, size_t, void *);
489 : typedef int (_curl_debug_callback2) (CURL *,
490 : curl_infotype, char *, size_t, const void *);
491 : typedef int (_curl_debug_callback3) (CURL *,
492 : curl_infotype, const char *, size_t, void *);
493 : typedef int (_curl_debug_callback4) (CURL *,
494 : curl_infotype, const char *, size_t, const void *);
495 :
496 : /* evaluates to true if expr is of type curl_ssl_ctx_callback or "similar" */
497 : /* this is getting even messier... */
498 : #define _curl_is_ssl_ctx_cb(expr) \
499 : (_curl_is_NULL(expr) || \
500 : __builtin_types_compatible_p(__typeof__(expr), curl_ssl_ctx_callback) || \
501 : _curl_callback_compatible((expr), _curl_ssl_ctx_callback1) || \
502 : _curl_callback_compatible((expr), _curl_ssl_ctx_callback2) || \
503 : _curl_callback_compatible((expr), _curl_ssl_ctx_callback3) || \
504 : _curl_callback_compatible((expr), _curl_ssl_ctx_callback4) || \
505 : _curl_callback_compatible((expr), _curl_ssl_ctx_callback5) || \
506 : _curl_callback_compatible((expr), _curl_ssl_ctx_callback6) || \
507 : _curl_callback_compatible((expr), _curl_ssl_ctx_callback7) || \
508 : _curl_callback_compatible((expr), _curl_ssl_ctx_callback8))
509 : typedef CURLcode (_curl_ssl_ctx_callback1)(CURL *, void *, void *);
510 : typedef CURLcode (_curl_ssl_ctx_callback2)(CURL *, void *, const void *);
511 : typedef CURLcode (_curl_ssl_ctx_callback3)(CURL *, const void *, void *);
512 : typedef CURLcode (_curl_ssl_ctx_callback4)(CURL *, const void *, const void *);
513 : #ifdef HEADER_SSL_H
514 : /* hack: if we included OpenSSL's ssl.h, we know about SSL_CTX
515 : * this will of course break if we're included before OpenSSL headers...
516 : */
517 : typedef CURLcode (_curl_ssl_ctx_callback5)(CURL *, SSL_CTX, void *);
518 : typedef CURLcode (_curl_ssl_ctx_callback6)(CURL *, SSL_CTX, const void *);
519 : typedef CURLcode (_curl_ssl_ctx_callback7)(CURL *, const SSL_CTX, void *);
520 : typedef CURLcode (_curl_ssl_ctx_callback8)(CURL *, const SSL_CTX, const void *);
521 : #else
522 : typedef _curl_ssl_ctx_callback1 _curl_ssl_ctx_callback5;
523 : typedef _curl_ssl_ctx_callback1 _curl_ssl_ctx_callback6;
524 : typedef _curl_ssl_ctx_callback1 _curl_ssl_ctx_callback7;
525 : typedef _curl_ssl_ctx_callback1 _curl_ssl_ctx_callback8;
526 : #endif
527 :
528 : /* evaluates to true if expr is of type curl_conv_callback or "similar" */
529 : #define _curl_is_conv_cb(expr) \
530 : (_curl_is_NULL(expr) || \
531 : __builtin_types_compatible_p(__typeof__(expr), curl_conv_callback) || \
532 : _curl_callback_compatible((expr), _curl_conv_callback1) || \
533 : _curl_callback_compatible((expr), _curl_conv_callback2) || \
534 : _curl_callback_compatible((expr), _curl_conv_callback3) || \
535 : _curl_callback_compatible((expr), _curl_conv_callback4))
536 : typedef CURLcode (*_curl_conv_callback1)(char *, size_t length);
537 : typedef CURLcode (*_curl_conv_callback2)(const char *, size_t length);
538 : typedef CURLcode (*_curl_conv_callback3)(void *, size_t length);
539 : typedef CURLcode (*_curl_conv_callback4)(const void *, size_t length);
540 :
541 : /* evaluates to true if expr is of type curl_seek_callback or "similar" */
542 : #define _curl_is_seek_cb(expr) \
543 : (_curl_is_NULL(expr) || \
544 : __builtin_types_compatible_p(__typeof__(expr), curl_seek_callback) || \
545 : _curl_callback_compatible((expr), _curl_seek_callback1) || \
546 : _curl_callback_compatible((expr), _curl_seek_callback2))
547 : typedef CURLcode (*_curl_seek_callback1)(void *, curl_off_t, int);
548 : typedef CURLcode (*_curl_seek_callback2)(const void *, curl_off_t, int);
549 :
550 :
551 : #endif /* __CURL_TYPECHECK_GCC_H */
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