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[emacs.git] / lib / stdio.in.h
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1 /* A GNU-like <stdio.h>.
3 Copyright (C) 2004, 2007-2013 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3, or (at your option)
8 any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, see <http://www.gnu.org/licenses/>. */
18 #if __GNUC__ >= 3
19 @PRAGMA_SYSTEM_HEADER@
20 #endif
21 @PRAGMA_COLUMNS@
23 #if defined __need_FILE || defined __need___FILE || defined _GL_ALREADY_INCLUDING_STDIO_H
24 /* Special invocation convention:
25 - Inside glibc header files.
26 - On OSF/1 5.1 we have a sequence of nested includes
27 <stdio.h> -> <getopt.h> -> <ctype.h> -> <sys/localedef.h> ->
28 <sys/lc_core.h> -> <nl_types.h> -> <mesg.h> -> <stdio.h>.
29 In this situation, the functions are not yet declared, therefore we cannot
30 provide the C++ aliases. */
32 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
34 #else
35 /* Normal invocation convention. */
37 #ifndef _@GUARD_PREFIX@_STDIO_H
39 #define _GL_ALREADY_INCLUDING_STDIO_H
41 /* The include_next requires a split double-inclusion guard. */
42 #@INCLUDE_NEXT@ @NEXT_STDIO_H@
44 #undef _GL_ALREADY_INCLUDING_STDIO_H
46 #ifndef _@GUARD_PREFIX@_STDIO_H
47 #define _@GUARD_PREFIX@_STDIO_H
49 /* Get va_list. Needed on many systems, including glibc 2.8. */
50 #include <stdarg.h>
52 #include <stddef.h>
54 /* Get off_t and ssize_t. Needed on many systems, including glibc 2.8
55 and eglibc 2.11.2.
56 May also define off_t to a 64-bit type on native Windows. */
57 #include <sys/types.h>
59 /* The __attribute__ feature is available in gcc versions 2.5 and later.
60 The __-protected variants of the attributes 'format' and 'printf' are
61 accepted by gcc versions 2.6.4 (effectively 2.7) and later.
62 We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because
63 gnulib and libintl do '#define printf __printf__' when they override
64 the 'printf' function. */
65 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
66 # define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
67 #else
68 # define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
69 #endif
71 /* _GL_ATTRIBUTE_FORMAT_PRINTF
72 indicates to GCC that the function takes a format string and arguments,
73 where the format string directives are the ones standardized by ISO C99
74 and POSIX. */
75 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
76 # define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
77 _GL_ATTRIBUTE_FORMAT ((__gnu_printf__, formatstring_parameter, first_argument))
78 #else
79 # define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
80 _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
81 #endif
83 /* _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_PRINTF,
84 except that it indicates to GCC that the supported format string directives
85 are the ones of the system printf(), rather than the ones standardized by
86 ISO C99 and POSIX. */
87 #define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \
88 _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
90 /* _GL_ATTRIBUTE_FORMAT_SCANF
91 indicates to GCC that the function takes a format string and arguments,
92 where the format string directives are the ones standardized by ISO C99
93 and POSIX. */
94 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
95 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
96 _GL_ATTRIBUTE_FORMAT ((__gnu_scanf__, formatstring_parameter, first_argument))
97 #else
98 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
99 _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
100 #endif
102 /* _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_SCANF,
103 except that it indicates to GCC that the supported format string directives
104 are the ones of the system scanf(), rather than the ones standardized by
105 ISO C99 and POSIX. */
106 #define _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM(formatstring_parameter, first_argument) \
107 _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
109 /* Solaris 10 declares renameat in <unistd.h>, not in <stdio.h>. */
110 /* But in any case avoid namespace pollution on glibc systems. */
111 #if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && defined __sun \
112 && ! defined __GLIBC__
113 # include <unistd.h>
114 #endif
117 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
119 /* The definition of _GL_ARG_NONNULL is copied here. */
121 /* The definition of _GL_WARN_ON_USE is copied here. */
123 /* Macros for stringification. */
124 #define _GL_STDIO_STRINGIZE(token) #token
125 #define _GL_STDIO_MACROEXPAND_AND_STRINGIZE(token) _GL_STDIO_STRINGIZE(token)
128 #if @GNULIB_DPRINTF@
129 # if @REPLACE_DPRINTF@
130 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
131 # define dprintf rpl_dprintf
132 # endif
133 _GL_FUNCDECL_RPL (dprintf, int, (int fd, const char *format, ...)
134 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
135 _GL_ARG_NONNULL ((2)));
136 _GL_CXXALIAS_RPL (dprintf, int, (int fd, const char *format, ...));
137 # else
138 # if !@HAVE_DPRINTF@
139 _GL_FUNCDECL_SYS (dprintf, int, (int fd, const char *format, ...)
140 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
141 _GL_ARG_NONNULL ((2)));
142 # endif
143 _GL_CXXALIAS_SYS (dprintf, int, (int fd, const char *format, ...));
144 # endif
145 _GL_CXXALIASWARN (dprintf);
146 #elif defined GNULIB_POSIXCHECK
147 # undef dprintf
148 # if HAVE_RAW_DECL_DPRINTF
149 _GL_WARN_ON_USE (dprintf, "dprintf is unportable - "
150 "use gnulib module dprintf for portability");
151 # endif
152 #endif
154 #if @GNULIB_FCLOSE@
155 /* Close STREAM and its underlying file descriptor. */
156 # if @REPLACE_FCLOSE@
157 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
158 # define fclose rpl_fclose
159 # endif
160 _GL_FUNCDECL_RPL (fclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
161 _GL_CXXALIAS_RPL (fclose, int, (FILE *stream));
162 # else
163 _GL_CXXALIAS_SYS (fclose, int, (FILE *stream));
164 # endif
165 _GL_CXXALIASWARN (fclose);
166 #elif defined GNULIB_POSIXCHECK
167 # undef fclose
168 /* Assume fclose is always declared. */
169 _GL_WARN_ON_USE (fclose, "fclose is not always POSIX compliant - "
170 "use gnulib module fclose for portable POSIX compliance");
171 #endif
173 #if @GNULIB_FDOPEN@
174 # if @REPLACE_FDOPEN@
175 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
176 # undef fdopen
177 # define fdopen rpl_fdopen
178 # endif
179 _GL_FUNCDECL_RPL (fdopen, FILE *, (int fd, const char *mode)
180 _GL_ARG_NONNULL ((2)));
181 _GL_CXXALIAS_RPL (fdopen, FILE *, (int fd, const char *mode));
182 # else
183 _GL_CXXALIAS_SYS (fdopen, FILE *, (int fd, const char *mode));
184 # endif
185 _GL_CXXALIASWARN (fdopen);
186 #elif defined GNULIB_POSIXCHECK
187 # undef fdopen
188 /* Assume fdopen is always declared. */
189 _GL_WARN_ON_USE (fdopen, "fdopen on native Windows platforms is not POSIX compliant - "
190 "use gnulib module fdopen for portability");
191 #endif
193 #if @GNULIB_FFLUSH@
194 /* Flush all pending data on STREAM according to POSIX rules. Both
195 output and seekable input streams are supported.
196 Note! LOSS OF DATA can occur if fflush is applied on an input stream
197 that is _not_seekable_ or on an update stream that is _not_seekable_
198 and in which the most recent operation was input. Seekability can
199 be tested with lseek(fileno(fp),0,SEEK_CUR). */
200 # if @REPLACE_FFLUSH@
201 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
202 # define fflush rpl_fflush
203 # endif
204 _GL_FUNCDECL_RPL (fflush, int, (FILE *gl_stream));
205 _GL_CXXALIAS_RPL (fflush, int, (FILE *gl_stream));
206 # else
207 _GL_CXXALIAS_SYS (fflush, int, (FILE *gl_stream));
208 # endif
209 _GL_CXXALIASWARN (fflush);
210 #elif defined GNULIB_POSIXCHECK
211 # undef fflush
212 /* Assume fflush is always declared. */
213 _GL_WARN_ON_USE (fflush, "fflush is not always POSIX compliant - "
214 "use gnulib module fflush for portable POSIX compliance");
215 #endif
217 #if @GNULIB_FGETC@
218 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
219 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
220 # undef fgetc
221 # define fgetc rpl_fgetc
222 # endif
223 _GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
224 _GL_CXXALIAS_RPL (fgetc, int, (FILE *stream));
225 # else
226 _GL_CXXALIAS_SYS (fgetc, int, (FILE *stream));
227 # endif
228 _GL_CXXALIASWARN (fgetc);
229 #endif
231 #if @GNULIB_FGETS@
232 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
233 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
234 # undef fgets
235 # define fgets rpl_fgets
236 # endif
237 _GL_FUNCDECL_RPL (fgets, char *, (char *s, int n, FILE *stream)
238 _GL_ARG_NONNULL ((1, 3)));
239 _GL_CXXALIAS_RPL (fgets, char *, (char *s, int n, FILE *stream));
240 # else
241 _GL_CXXALIAS_SYS (fgets, char *, (char *s, int n, FILE *stream));
242 # endif
243 _GL_CXXALIASWARN (fgets);
244 #endif
246 #if @GNULIB_FOPEN@
247 # if @REPLACE_FOPEN@
248 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
249 # undef fopen
250 # define fopen rpl_fopen
251 # endif
252 _GL_FUNCDECL_RPL (fopen, FILE *, (const char *filename, const char *mode)
253 _GL_ARG_NONNULL ((1, 2)));
254 _GL_CXXALIAS_RPL (fopen, FILE *, (const char *filename, const char *mode));
255 # else
256 _GL_CXXALIAS_SYS (fopen, FILE *, (const char *filename, const char *mode));
257 # endif
258 _GL_CXXALIASWARN (fopen);
259 #elif defined GNULIB_POSIXCHECK
260 # undef fopen
261 /* Assume fopen is always declared. */
262 _GL_WARN_ON_USE (fopen, "fopen on native Windows platforms is not POSIX compliant - "
263 "use gnulib module fopen for portability");
264 #endif
266 #if @GNULIB_FPRINTF_POSIX@ || @GNULIB_FPRINTF@
267 # if (@GNULIB_FPRINTF_POSIX@ && @REPLACE_FPRINTF@) \
268 || (@GNULIB_FPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
269 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
270 # define fprintf rpl_fprintf
271 # endif
272 # define GNULIB_overrides_fprintf 1
273 # if @GNULIB_FPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
274 _GL_FUNCDECL_RPL (fprintf, int, (FILE *fp, const char *format, ...)
275 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
276 _GL_ARG_NONNULL ((1, 2)));
277 # else
278 _GL_FUNCDECL_RPL (fprintf, int, (FILE *fp, const char *format, ...)
279 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 3)
280 _GL_ARG_NONNULL ((1, 2)));
281 # endif
282 _GL_CXXALIAS_RPL (fprintf, int, (FILE *fp, const char *format, ...));
283 # else
284 _GL_CXXALIAS_SYS (fprintf, int, (FILE *fp, const char *format, ...));
285 # endif
286 _GL_CXXALIASWARN (fprintf);
287 #endif
288 #if !@GNULIB_FPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
289 # if !GNULIB_overrides_fprintf
290 # undef fprintf
291 # endif
292 /* Assume fprintf is always declared. */
293 _GL_WARN_ON_USE (fprintf, "fprintf is not always POSIX compliant - "
294 "use gnulib module fprintf-posix for portable "
295 "POSIX compliance");
296 #endif
298 #if @GNULIB_FPURGE@
299 /* Discard all pending buffered I/O data on STREAM.
300 STREAM must not be wide-character oriented.
301 When discarding pending output, the file position is set back to where it
302 was before the write calls. When discarding pending input, the file
303 position is advanced to match the end of the previously read input.
304 Return 0 if successful. Upon error, return -1 and set errno. */
305 # if @REPLACE_FPURGE@
306 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
307 # define fpurge rpl_fpurge
308 # endif
309 _GL_FUNCDECL_RPL (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
310 _GL_CXXALIAS_RPL (fpurge, int, (FILE *gl_stream));
311 # else
312 # if !@HAVE_DECL_FPURGE@
313 _GL_FUNCDECL_SYS (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
314 # endif
315 _GL_CXXALIAS_SYS (fpurge, int, (FILE *gl_stream));
316 # endif
317 _GL_CXXALIASWARN (fpurge);
318 #elif defined GNULIB_POSIXCHECK
319 # undef fpurge
320 # if HAVE_RAW_DECL_FPURGE
321 _GL_WARN_ON_USE (fpurge, "fpurge is not always present - "
322 "use gnulib module fpurge for portability");
323 # endif
324 #endif
326 #if @GNULIB_FPUTC@
327 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
328 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
329 # undef fputc
330 # define fputc rpl_fputc
331 # endif
332 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
333 _GL_CXXALIAS_RPL (fputc, int, (int c, FILE *stream));
334 # else
335 _GL_CXXALIAS_SYS (fputc, int, (int c, FILE *stream));
336 # endif
337 _GL_CXXALIASWARN (fputc);
338 #endif
340 #if @GNULIB_FPUTS@
341 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
342 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
343 # undef fputs
344 # define fputs rpl_fputs
345 # endif
346 _GL_FUNCDECL_RPL (fputs, int, (const char *string, FILE *stream)
347 _GL_ARG_NONNULL ((1, 2)));
348 _GL_CXXALIAS_RPL (fputs, int, (const char *string, FILE *stream));
349 # else
350 _GL_CXXALIAS_SYS (fputs, int, (const char *string, FILE *stream));
351 # endif
352 _GL_CXXALIASWARN (fputs);
353 #endif
355 #if @GNULIB_FREAD@
356 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
357 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
358 # undef fread
359 # define fread rpl_fread
360 # endif
361 _GL_FUNCDECL_RPL (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream)
362 _GL_ARG_NONNULL ((4)));
363 _GL_CXXALIAS_RPL (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream));
364 # else
365 _GL_CXXALIAS_SYS (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream));
366 # endif
367 _GL_CXXALIASWARN (fread);
368 #endif
370 #if @GNULIB_FREOPEN@
371 # if @REPLACE_FREOPEN@
372 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
373 # undef freopen
374 # define freopen rpl_freopen
375 # endif
376 _GL_FUNCDECL_RPL (freopen, FILE *,
377 (const char *filename, const char *mode, FILE *stream)
378 _GL_ARG_NONNULL ((2, 3)));
379 _GL_CXXALIAS_RPL (freopen, FILE *,
380 (const char *filename, const char *mode, FILE *stream));
381 # else
382 _GL_CXXALIAS_SYS (freopen, FILE *,
383 (const char *filename, const char *mode, FILE *stream));
384 # endif
385 _GL_CXXALIASWARN (freopen);
386 #elif defined GNULIB_POSIXCHECK
387 # undef freopen
388 /* Assume freopen is always declared. */
389 _GL_WARN_ON_USE (freopen,
390 "freopen on native Windows platforms is not POSIX compliant - "
391 "use gnulib module freopen for portability");
392 #endif
394 #if @GNULIB_FSCANF@
395 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
396 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
397 # undef fscanf
398 # define fscanf rpl_fscanf
399 # endif
400 _GL_FUNCDECL_RPL (fscanf, int, (FILE *stream, const char *format, ...)
401 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 3)
402 _GL_ARG_NONNULL ((1, 2)));
403 _GL_CXXALIAS_RPL (fscanf, int, (FILE *stream, const char *format, ...));
404 # else
405 _GL_CXXALIAS_SYS (fscanf, int, (FILE *stream, const char *format, ...));
406 # endif
407 _GL_CXXALIASWARN (fscanf);
408 #endif
411 /* Set up the following warnings, based on which modules are in use.
412 GNU Coding Standards discourage the use of fseek, since it imposes
413 an arbitrary limitation on some 32-bit hosts. Remember that the
414 fseek module depends on the fseeko module, so we only have three
415 cases to consider:
417 1. The developer is not using either module. Issue a warning under
418 GNULIB_POSIXCHECK for both functions, to remind them that both
419 functions have bugs on some systems. _GL_NO_LARGE_FILES has no
420 impact on this warning.
422 2. The developer is using both modules. They may be unaware of the
423 arbitrary limitations of fseek, so issue a warning under
424 GNULIB_POSIXCHECK. On the other hand, they may be using both
425 modules intentionally, so the developer can define
426 _GL_NO_LARGE_FILES in the compilation units where the use of fseek
427 is safe, to silence the warning.
429 3. The developer is using the fseeko module, but not fseek. Gnulib
430 guarantees that fseek will still work around platform bugs in that
431 case, but we presume that the developer is aware of the pitfalls of
432 fseek and was trying to avoid it, so issue a warning even when
433 GNULIB_POSIXCHECK is undefined. Again, _GL_NO_LARGE_FILES can be
434 defined to silence the warning in particular compilation units.
435 In C++ compilations with GNULIB_NAMESPACE, in order to avoid that
436 fseek gets defined as a macro, it is recommended that the developer
437 uses the fseek module, even if he is not calling the fseek function.
439 Most gnulib clients that perform stream operations should fall into
440 category 3. */
442 #if @GNULIB_FSEEK@
443 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
444 # define _GL_FSEEK_WARN /* Category 2, above. */
445 # undef fseek
446 # endif
447 # if @REPLACE_FSEEK@
448 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
449 # undef fseek
450 # define fseek rpl_fseek
451 # endif
452 _GL_FUNCDECL_RPL (fseek, int, (FILE *fp, long offset, int whence)
453 _GL_ARG_NONNULL ((1)));
454 _GL_CXXALIAS_RPL (fseek, int, (FILE *fp, long offset, int whence));
455 # else
456 _GL_CXXALIAS_SYS (fseek, int, (FILE *fp, long offset, int whence));
457 # endif
458 _GL_CXXALIASWARN (fseek);
459 #endif
461 #if @GNULIB_FSEEKO@
462 # if !@GNULIB_FSEEK@ && !defined _GL_NO_LARGE_FILES
463 # define _GL_FSEEK_WARN /* Category 3, above. */
464 # undef fseek
465 # endif
466 # if @REPLACE_FSEEKO@
467 /* Provide an fseeko function that is aware of a preceding fflush(), and which
468 detects pipes. */
469 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
470 # undef fseeko
471 # define fseeko rpl_fseeko
472 # endif
473 _GL_FUNCDECL_RPL (fseeko, int, (FILE *fp, off_t offset, int whence)
474 _GL_ARG_NONNULL ((1)));
475 _GL_CXXALIAS_RPL (fseeko, int, (FILE *fp, off_t offset, int whence));
476 # else
477 # if ! @HAVE_DECL_FSEEKO@
478 _GL_FUNCDECL_SYS (fseeko, int, (FILE *fp, off_t offset, int whence)
479 _GL_ARG_NONNULL ((1)));
480 # endif
481 _GL_CXXALIAS_SYS (fseeko, int, (FILE *fp, off_t offset, int whence));
482 # endif
483 _GL_CXXALIASWARN (fseeko);
484 #elif defined GNULIB_POSIXCHECK
485 # define _GL_FSEEK_WARN /* Category 1, above. */
486 # undef fseek
487 # undef fseeko
488 # if HAVE_RAW_DECL_FSEEKO
489 _GL_WARN_ON_USE (fseeko, "fseeko is unportable - "
490 "use gnulib module fseeko for portability");
491 # endif
492 #endif
494 #ifdef _GL_FSEEK_WARN
495 # undef _GL_FSEEK_WARN
496 /* Here, either fseek is undefined (but C89 guarantees that it is
497 declared), or it is defined as rpl_fseek (declared above). */
498 _GL_WARN_ON_USE (fseek, "fseek cannot handle files larger than 4 GB "
499 "on 32-bit platforms - "
500 "use fseeko function for handling of large files");
501 #endif
504 /* ftell, ftello. See the comments on fseek/fseeko. */
506 #if @GNULIB_FTELL@
507 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
508 # define _GL_FTELL_WARN /* Category 2, above. */
509 # undef ftell
510 # endif
511 # if @REPLACE_FTELL@
512 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
513 # undef ftell
514 # define ftell rpl_ftell
515 # endif
516 _GL_FUNCDECL_RPL (ftell, long, (FILE *fp) _GL_ARG_NONNULL ((1)));
517 _GL_CXXALIAS_RPL (ftell, long, (FILE *fp));
518 # else
519 _GL_CXXALIAS_SYS (ftell, long, (FILE *fp));
520 # endif
521 _GL_CXXALIASWARN (ftell);
522 #endif
524 #if @GNULIB_FTELLO@
525 # if !@GNULIB_FTELL@ && !defined _GL_NO_LARGE_FILES
526 # define _GL_FTELL_WARN /* Category 3, above. */
527 # undef ftell
528 # endif
529 # if @REPLACE_FTELLO@
530 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
531 # undef ftello
532 # define ftello rpl_ftello
533 # endif
534 _GL_FUNCDECL_RPL (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
535 _GL_CXXALIAS_RPL (ftello, off_t, (FILE *fp));
536 # else
537 # if ! @HAVE_DECL_FTELLO@
538 _GL_FUNCDECL_SYS (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
539 # endif
540 _GL_CXXALIAS_SYS (ftello, off_t, (FILE *fp));
541 # endif
542 _GL_CXXALIASWARN (ftello);
543 #elif defined GNULIB_POSIXCHECK
544 # define _GL_FTELL_WARN /* Category 1, above. */
545 # undef ftell
546 # undef ftello
547 # if HAVE_RAW_DECL_FTELLO
548 _GL_WARN_ON_USE (ftello, "ftello is unportable - "
549 "use gnulib module ftello for portability");
550 # endif
551 #endif
553 #ifdef _GL_FTELL_WARN
554 # undef _GL_FTELL_WARN
555 /* Here, either ftell is undefined (but C89 guarantees that it is
556 declared), or it is defined as rpl_ftell (declared above). */
557 _GL_WARN_ON_USE (ftell, "ftell cannot handle files larger than 4 GB "
558 "on 32-bit platforms - "
559 "use ftello function for handling of large files");
560 #endif
563 #if @GNULIB_FWRITE@
564 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
565 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
566 # undef fwrite
567 # define fwrite rpl_fwrite
568 # endif
569 _GL_FUNCDECL_RPL (fwrite, size_t,
570 (const void *ptr, size_t s, size_t n, FILE *stream)
571 _GL_ARG_NONNULL ((1, 4)));
572 _GL_CXXALIAS_RPL (fwrite, size_t,
573 (const void *ptr, size_t s, size_t n, FILE *stream));
574 # else
575 _GL_CXXALIAS_SYS (fwrite, size_t,
576 (const void *ptr, size_t s, size_t n, FILE *stream));
578 /* Work around bug 11959 when fortifying glibc 2.4 through 2.15
579 <http://sources.redhat.com/bugzilla/show_bug.cgi?id=11959>,
580 which sometimes causes an unwanted diagnostic for fwrite calls.
581 This affects only function declaration attributes under certain
582 versions of gcc and clang, and is not needed for C++. */
583 # if (0 < __USE_FORTIFY_LEVEL \
584 && __GLIBC__ == 2 && 4 <= __GLIBC_MINOR__ && __GLIBC_MINOR__ <= 15 \
585 && 3 < __GNUC__ + (4 <= __GNUC_MINOR__) \
586 && !defined __cplusplus)
587 # undef fwrite
588 # undef fwrite_unlocked
589 extern size_t __REDIRECT (rpl_fwrite,
590 (const void *__restrict, size_t, size_t,
591 FILE *__restrict),
592 fwrite);
593 extern size_t __REDIRECT (rpl_fwrite_unlocked,
594 (const void *__restrict, size_t, size_t,
595 FILE *__restrict),
596 fwrite_unlocked);
597 # define fwrite rpl_fwrite
598 # define fwrite_unlocked rpl_fwrite_unlocked
599 # endif
600 # endif
601 _GL_CXXALIASWARN (fwrite);
602 #endif
604 #if @GNULIB_GETC@
605 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
606 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
607 # undef getc
608 # define getc rpl_fgetc
609 # endif
610 _GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
611 _GL_CXXALIAS_RPL_1 (getc, rpl_fgetc, int, (FILE *stream));
612 # else
613 _GL_CXXALIAS_SYS (getc, int, (FILE *stream));
614 # endif
615 _GL_CXXALIASWARN (getc);
616 #endif
618 #if @GNULIB_GETCHAR@
619 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
620 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
621 # undef getchar
622 # define getchar rpl_getchar
623 # endif
624 _GL_FUNCDECL_RPL (getchar, int, (void));
625 _GL_CXXALIAS_RPL (getchar, int, (void));
626 # else
627 _GL_CXXALIAS_SYS (getchar, int, (void));
628 # endif
629 _GL_CXXALIASWARN (getchar);
630 #endif
632 #if @GNULIB_GETDELIM@
633 /* Read input, up to (and including) the next occurrence of DELIMITER, from
634 STREAM, store it in *LINEPTR (and NUL-terminate it).
635 *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
636 bytes of space. It is realloc'd as necessary.
637 Return the number of bytes read and stored at *LINEPTR (not including the
638 NUL terminator), or -1 on error or EOF. */
639 # if @REPLACE_GETDELIM@
640 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
641 # undef getdelim
642 # define getdelim rpl_getdelim
643 # endif
644 _GL_FUNCDECL_RPL (getdelim, ssize_t,
645 (char **lineptr, size_t *linesize, int delimiter,
646 FILE *stream)
647 _GL_ARG_NONNULL ((1, 2, 4)));
648 _GL_CXXALIAS_RPL (getdelim, ssize_t,
649 (char **lineptr, size_t *linesize, int delimiter,
650 FILE *stream));
651 # else
652 # if !@HAVE_DECL_GETDELIM@
653 _GL_FUNCDECL_SYS (getdelim, ssize_t,
654 (char **lineptr, size_t *linesize, int delimiter,
655 FILE *stream)
656 _GL_ARG_NONNULL ((1, 2, 4)));
657 # endif
658 _GL_CXXALIAS_SYS (getdelim, ssize_t,
659 (char **lineptr, size_t *linesize, int delimiter,
660 FILE *stream));
661 # endif
662 _GL_CXXALIASWARN (getdelim);
663 #elif defined GNULIB_POSIXCHECK
664 # undef getdelim
665 # if HAVE_RAW_DECL_GETDELIM
666 _GL_WARN_ON_USE (getdelim, "getdelim is unportable - "
667 "use gnulib module getdelim for portability");
668 # endif
669 #endif
671 #if @GNULIB_GETLINE@
672 /* Read a line, up to (and including) the next newline, from STREAM, store it
673 in *LINEPTR (and NUL-terminate it).
674 *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
675 bytes of space. It is realloc'd as necessary.
676 Return the number of bytes read and stored at *LINEPTR (not including the
677 NUL terminator), or -1 on error or EOF. */
678 # if @REPLACE_GETLINE@
679 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
680 # undef getline
681 # define getline rpl_getline
682 # endif
683 _GL_FUNCDECL_RPL (getline, ssize_t,
684 (char **lineptr, size_t *linesize, FILE *stream)
685 _GL_ARG_NONNULL ((1, 2, 3)));
686 _GL_CXXALIAS_RPL (getline, ssize_t,
687 (char **lineptr, size_t *linesize, FILE *stream));
688 # else
689 # if !@HAVE_DECL_GETLINE@
690 _GL_FUNCDECL_SYS (getline, ssize_t,
691 (char **lineptr, size_t *linesize, FILE *stream)
692 _GL_ARG_NONNULL ((1, 2, 3)));
693 # endif
694 _GL_CXXALIAS_SYS (getline, ssize_t,
695 (char **lineptr, size_t *linesize, FILE *stream));
696 # endif
697 # if @HAVE_DECL_GETLINE@
698 _GL_CXXALIASWARN (getline);
699 # endif
700 #elif defined GNULIB_POSIXCHECK
701 # undef getline
702 # if HAVE_RAW_DECL_GETLINE
703 _GL_WARN_ON_USE (getline, "getline is unportable - "
704 "use gnulib module getline for portability");
705 # endif
706 #endif
708 /* It is very rare that the developer ever has full control of stdin,
709 so any use of gets warrants an unconditional warning; besides, C11
710 removed it. */
711 #undef gets
712 #if HAVE_RAW_DECL_GETS
713 _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
714 #endif
717 #if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@
718 struct obstack;
719 /* Grow an obstack with formatted output. Return the number of
720 bytes added to OBS. No trailing nul byte is added, and the
721 object should be closed with obstack_finish before use. Upon
722 memory allocation error, call obstack_alloc_failed_handler. Upon
723 other error, return -1. */
724 # if @REPLACE_OBSTACK_PRINTF@
725 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
726 # define obstack_printf rpl_obstack_printf
727 # endif
728 _GL_FUNCDECL_RPL (obstack_printf, int,
729 (struct obstack *obs, const char *format, ...)
730 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
731 _GL_ARG_NONNULL ((1, 2)));
732 _GL_CXXALIAS_RPL (obstack_printf, int,
733 (struct obstack *obs, const char *format, ...));
734 # else
735 # if !@HAVE_DECL_OBSTACK_PRINTF@
736 _GL_FUNCDECL_SYS (obstack_printf, int,
737 (struct obstack *obs, const char *format, ...)
738 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
739 _GL_ARG_NONNULL ((1, 2)));
740 # endif
741 _GL_CXXALIAS_SYS (obstack_printf, int,
742 (struct obstack *obs, const char *format, ...));
743 # endif
744 _GL_CXXALIASWARN (obstack_printf);
745 # if @REPLACE_OBSTACK_PRINTF@
746 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
747 # define obstack_vprintf rpl_obstack_vprintf
748 # endif
749 _GL_FUNCDECL_RPL (obstack_vprintf, int,
750 (struct obstack *obs, const char *format, va_list args)
751 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
752 _GL_ARG_NONNULL ((1, 2)));
753 _GL_CXXALIAS_RPL (obstack_vprintf, int,
754 (struct obstack *obs, const char *format, va_list args));
755 # else
756 # if !@HAVE_DECL_OBSTACK_PRINTF@
757 _GL_FUNCDECL_SYS (obstack_vprintf, int,
758 (struct obstack *obs, const char *format, va_list args)
759 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
760 _GL_ARG_NONNULL ((1, 2)));
761 # endif
762 _GL_CXXALIAS_SYS (obstack_vprintf, int,
763 (struct obstack *obs, const char *format, va_list args));
764 # endif
765 _GL_CXXALIASWARN (obstack_vprintf);
766 #endif
768 #if @GNULIB_PCLOSE@
769 # if !@HAVE_PCLOSE@
770 _GL_FUNCDECL_SYS (pclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
771 # endif
772 _GL_CXXALIAS_SYS (pclose, int, (FILE *stream));
773 _GL_CXXALIASWARN (pclose);
774 #elif defined GNULIB_POSIXCHECK
775 # undef pclose
776 # if HAVE_RAW_DECL_PCLOSE
777 _GL_WARN_ON_USE (pclose, "pclose is unportable - "
778 "use gnulib module pclose for more portability");
779 # endif
780 #endif
782 #if @GNULIB_PERROR@
783 /* Print a message to standard error, describing the value of ERRNO,
784 (if STRING is not NULL and not empty) prefixed with STRING and ": ",
785 and terminated with a newline. */
786 # if @REPLACE_PERROR@
787 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
788 # define perror rpl_perror
789 # endif
790 _GL_FUNCDECL_RPL (perror, void, (const char *string));
791 _GL_CXXALIAS_RPL (perror, void, (const char *string));
792 # else
793 _GL_CXXALIAS_SYS (perror, void, (const char *string));
794 # endif
795 _GL_CXXALIASWARN (perror);
796 #elif defined GNULIB_POSIXCHECK
797 # undef perror
798 /* Assume perror is always declared. */
799 _GL_WARN_ON_USE (perror, "perror is not always POSIX compliant - "
800 "use gnulib module perror for portability");
801 #endif
803 #if @GNULIB_POPEN@
804 # if @REPLACE_POPEN@
805 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
806 # undef popen
807 # define popen rpl_popen
808 # endif
809 _GL_FUNCDECL_RPL (popen, FILE *, (const char *cmd, const char *mode)
810 _GL_ARG_NONNULL ((1, 2)));
811 _GL_CXXALIAS_RPL (popen, FILE *, (const char *cmd, const char *mode));
812 # else
813 # if !@HAVE_POPEN@
814 _GL_FUNCDECL_SYS (popen, FILE *, (const char *cmd, const char *mode)
815 _GL_ARG_NONNULL ((1, 2)));
816 # endif
817 _GL_CXXALIAS_SYS (popen, FILE *, (const char *cmd, const char *mode));
818 # endif
819 _GL_CXXALIASWARN (popen);
820 #elif defined GNULIB_POSIXCHECK
821 # undef popen
822 # if HAVE_RAW_DECL_POPEN
823 _GL_WARN_ON_USE (popen, "popen is buggy on some platforms - "
824 "use gnulib module popen or pipe for more portability");
825 # endif
826 #endif
828 #if @GNULIB_PRINTF_POSIX@ || @GNULIB_PRINTF@
829 # if (@GNULIB_PRINTF_POSIX@ && @REPLACE_PRINTF@) \
830 || (@GNULIB_PRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
831 # if defined __GNUC__
832 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
833 /* Don't break __attribute__((format(printf,M,N))). */
834 # define printf __printf__
835 # endif
836 # if @GNULIB_PRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
837 _GL_FUNCDECL_RPL_1 (__printf__, int,
838 (const char *format, ...)
839 __asm__ (@ASM_SYMBOL_PREFIX@
840 _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
841 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
842 _GL_ARG_NONNULL ((1)));
843 # else
844 _GL_FUNCDECL_RPL_1 (__printf__, int,
845 (const char *format, ...)
846 __asm__ (@ASM_SYMBOL_PREFIX@
847 _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
848 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 2)
849 _GL_ARG_NONNULL ((1)));
850 # endif
851 _GL_CXXALIAS_RPL_1 (printf, __printf__, int, (const char *format, ...));
852 # else
853 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
854 # define printf rpl_printf
855 # endif
856 _GL_FUNCDECL_RPL (printf, int,
857 (const char *format, ...)
858 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
859 _GL_ARG_NONNULL ((1)));
860 _GL_CXXALIAS_RPL (printf, int, (const char *format, ...));
861 # endif
862 # define GNULIB_overrides_printf 1
863 # else
864 _GL_CXXALIAS_SYS (printf, int, (const char *format, ...));
865 # endif
866 _GL_CXXALIASWARN (printf);
867 #endif
868 #if !@GNULIB_PRINTF_POSIX@ && defined GNULIB_POSIXCHECK
869 # if !GNULIB_overrides_printf
870 # undef printf
871 # endif
872 /* Assume printf is always declared. */
873 _GL_WARN_ON_USE (printf, "printf is not always POSIX compliant - "
874 "use gnulib module printf-posix for portable "
875 "POSIX compliance");
876 #endif
878 #if @GNULIB_PUTC@
879 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
880 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
881 # undef putc
882 # define putc rpl_fputc
883 # endif
884 _GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
885 _GL_CXXALIAS_RPL_1 (putc, rpl_fputc, int, (int c, FILE *stream));
886 # else
887 _GL_CXXALIAS_SYS (putc, int, (int c, FILE *stream));
888 # endif
889 _GL_CXXALIASWARN (putc);
890 #endif
892 #if @GNULIB_PUTCHAR@
893 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
894 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
895 # undef putchar
896 # define putchar rpl_putchar
897 # endif
898 _GL_FUNCDECL_RPL (putchar, int, (int c));
899 _GL_CXXALIAS_RPL (putchar, int, (int c));
900 # else
901 _GL_CXXALIAS_SYS (putchar, int, (int c));
902 # endif
903 _GL_CXXALIASWARN (putchar);
904 #endif
906 #if @GNULIB_PUTS@
907 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
908 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
909 # undef puts
910 # define puts rpl_puts
911 # endif
912 _GL_FUNCDECL_RPL (puts, int, (const char *string) _GL_ARG_NONNULL ((1)));
913 _GL_CXXALIAS_RPL (puts, int, (const char *string));
914 # else
915 _GL_CXXALIAS_SYS (puts, int, (const char *string));
916 # endif
917 _GL_CXXALIASWARN (puts);
918 #endif
920 #if @GNULIB_REMOVE@
921 # if @REPLACE_REMOVE@
922 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
923 # undef remove
924 # define remove rpl_remove
925 # endif
926 _GL_FUNCDECL_RPL (remove, int, (const char *name) _GL_ARG_NONNULL ((1)));
927 _GL_CXXALIAS_RPL (remove, int, (const char *name));
928 # else
929 _GL_CXXALIAS_SYS (remove, int, (const char *name));
930 # endif
931 _GL_CXXALIASWARN (remove);
932 #elif defined GNULIB_POSIXCHECK
933 # undef remove
934 /* Assume remove is always declared. */
935 _GL_WARN_ON_USE (remove, "remove cannot handle directories on some platforms - "
936 "use gnulib module remove for more portability");
937 #endif
939 #if @GNULIB_RENAME@
940 # if @REPLACE_RENAME@
941 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
942 # undef rename
943 # define rename rpl_rename
944 # endif
945 _GL_FUNCDECL_RPL (rename, int,
946 (const char *old_filename, const char *new_filename)
947 _GL_ARG_NONNULL ((1, 2)));
948 _GL_CXXALIAS_RPL (rename, int,
949 (const char *old_filename, const char *new_filename));
950 # else
951 _GL_CXXALIAS_SYS (rename, int,
952 (const char *old_filename, const char *new_filename));
953 # endif
954 _GL_CXXALIASWARN (rename);
955 #elif defined GNULIB_POSIXCHECK
956 # undef rename
957 /* Assume rename is always declared. */
958 _GL_WARN_ON_USE (rename, "rename is buggy on some platforms - "
959 "use gnulib module rename for more portability");
960 #endif
962 #if @GNULIB_RENAMEAT@
963 # if @REPLACE_RENAMEAT@
964 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
965 # undef renameat
966 # define renameat rpl_renameat
967 # endif
968 _GL_FUNCDECL_RPL (renameat, int,
969 (int fd1, char const *file1, int fd2, char const *file2)
970 _GL_ARG_NONNULL ((2, 4)));
971 _GL_CXXALIAS_RPL (renameat, int,
972 (int fd1, char const *file1, int fd2, char const *file2));
973 # else
974 # if !@HAVE_RENAMEAT@
975 _GL_FUNCDECL_SYS (renameat, int,
976 (int fd1, char const *file1, int fd2, char const *file2)
977 _GL_ARG_NONNULL ((2, 4)));
978 # endif
979 _GL_CXXALIAS_SYS (renameat, int,
980 (int fd1, char const *file1, int fd2, char const *file2));
981 # endif
982 _GL_CXXALIASWARN (renameat);
983 #elif defined GNULIB_POSIXCHECK
984 # undef renameat
985 # if HAVE_RAW_DECL_RENAMEAT
986 _GL_WARN_ON_USE (renameat, "renameat is not portable - "
987 "use gnulib module renameat for portability");
988 # endif
989 #endif
991 #if @GNULIB_SCANF@
992 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
993 # if defined __GNUC__
994 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
995 # undef scanf
996 /* Don't break __attribute__((format(scanf,M,N))). */
997 # define scanf __scanf__
998 # endif
999 _GL_FUNCDECL_RPL_1 (__scanf__, int,
1000 (const char *format, ...)
1001 __asm__ (@ASM_SYMBOL_PREFIX@
1002 _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_scanf))
1003 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
1004 _GL_ARG_NONNULL ((1)));
1005 _GL_CXXALIAS_RPL_1 (scanf, __scanf__, int, (const char *format, ...));
1006 # else
1007 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1008 # undef scanf
1009 # define scanf rpl_scanf
1010 # endif
1011 _GL_FUNCDECL_RPL (scanf, int, (const char *format, ...)
1012 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
1013 _GL_ARG_NONNULL ((1)));
1014 _GL_CXXALIAS_RPL (scanf, int, (const char *format, ...));
1015 # endif
1016 # else
1017 _GL_CXXALIAS_SYS (scanf, int, (const char *format, ...));
1018 # endif
1019 _GL_CXXALIASWARN (scanf);
1020 #endif
1022 #if @GNULIB_SNPRINTF@
1023 # if @REPLACE_SNPRINTF@
1024 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1025 # define snprintf rpl_snprintf
1026 # endif
1027 _GL_FUNCDECL_RPL (snprintf, int,
1028 (char *str, size_t size, const char *format, ...)
1029 _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
1030 _GL_ARG_NONNULL ((3)));
1031 _GL_CXXALIAS_RPL (snprintf, int,
1032 (char *str, size_t size, const char *format, ...));
1033 # else
1034 # if !@HAVE_DECL_SNPRINTF@
1035 _GL_FUNCDECL_SYS (snprintf, int,
1036 (char *str, size_t size, const char *format, ...)
1037 _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
1038 _GL_ARG_NONNULL ((3)));
1039 # endif
1040 _GL_CXXALIAS_SYS (snprintf, int,
1041 (char *str, size_t size, const char *format, ...));
1042 # endif
1043 _GL_CXXALIASWARN (snprintf);
1044 #elif defined GNULIB_POSIXCHECK
1045 # undef snprintf
1046 # if HAVE_RAW_DECL_SNPRINTF
1047 _GL_WARN_ON_USE (snprintf, "snprintf is unportable - "
1048 "use gnulib module snprintf for portability");
1049 # endif
1050 #endif
1052 /* Some people would argue that all sprintf uses should be warned about
1053 (for example, OpenBSD issues a link warning for it),
1054 since it can cause security holes due to buffer overruns.
1055 However, we believe that sprintf can be used safely, and is more
1056 efficient than snprintf in those safe cases; and as proof of our
1057 belief, we use sprintf in several gnulib modules. So this header
1058 intentionally avoids adding a warning to sprintf except when
1059 GNULIB_POSIXCHECK is defined. */
1061 #if @GNULIB_SPRINTF_POSIX@
1062 # if @REPLACE_SPRINTF@
1063 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1064 # define sprintf rpl_sprintf
1065 # endif
1066 _GL_FUNCDECL_RPL (sprintf, int, (char *str, const char *format, ...)
1067 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1068 _GL_ARG_NONNULL ((1, 2)));
1069 _GL_CXXALIAS_RPL (sprintf, int, (char *str, const char *format, ...));
1070 # else
1071 _GL_CXXALIAS_SYS (sprintf, int, (char *str, const char *format, ...));
1072 # endif
1073 _GL_CXXALIASWARN (sprintf);
1074 #elif defined GNULIB_POSIXCHECK
1075 # undef sprintf
1076 /* Assume sprintf is always declared. */
1077 _GL_WARN_ON_USE (sprintf, "sprintf is not always POSIX compliant - "
1078 "use gnulib module sprintf-posix for portable "
1079 "POSIX compliance");
1080 #endif
1082 #if @GNULIB_TMPFILE@
1083 # if @REPLACE_TMPFILE@
1084 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1085 # define tmpfile rpl_tmpfile
1086 # endif
1087 _GL_FUNCDECL_RPL (tmpfile, FILE *, (void));
1088 _GL_CXXALIAS_RPL (tmpfile, FILE *, (void));
1089 # else
1090 _GL_CXXALIAS_SYS (tmpfile, FILE *, (void));
1091 # endif
1092 _GL_CXXALIASWARN (tmpfile);
1093 #elif defined GNULIB_POSIXCHECK
1094 # undef tmpfile
1095 # if HAVE_RAW_DECL_TMPFILE
1096 _GL_WARN_ON_USE (tmpfile, "tmpfile is not usable on mingw - "
1097 "use gnulib module tmpfile for portability");
1098 # endif
1099 #endif
1101 #if @GNULIB_VASPRINTF@
1102 /* Write formatted output to a string dynamically allocated with malloc().
1103 If the memory allocation succeeds, store the address of the string in
1104 *RESULT and return the number of resulting bytes, excluding the trailing
1105 NUL. Upon memory allocation error, or some other error, return -1. */
1106 # if @REPLACE_VASPRINTF@
1107 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1108 # define asprintf rpl_asprintf
1109 # endif
1110 _GL_FUNCDECL_RPL (asprintf, int,
1111 (char **result, const char *format, ...)
1112 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1113 _GL_ARG_NONNULL ((1, 2)));
1114 _GL_CXXALIAS_RPL (asprintf, int,
1115 (char **result, const char *format, ...));
1116 # else
1117 # if !@HAVE_VASPRINTF@
1118 _GL_FUNCDECL_SYS (asprintf, int,
1119 (char **result, const char *format, ...)
1120 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1121 _GL_ARG_NONNULL ((1, 2)));
1122 # endif
1123 _GL_CXXALIAS_SYS (asprintf, int,
1124 (char **result, const char *format, ...));
1125 # endif
1126 _GL_CXXALIASWARN (asprintf);
1127 # if @REPLACE_VASPRINTF@
1128 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1129 # define vasprintf rpl_vasprintf
1130 # endif
1131 _GL_FUNCDECL_RPL (vasprintf, int,
1132 (char **result, const char *format, va_list args)
1133 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1134 _GL_ARG_NONNULL ((1, 2)));
1135 _GL_CXXALIAS_RPL (vasprintf, int,
1136 (char **result, const char *format, va_list args));
1137 # else
1138 # if !@HAVE_VASPRINTF@
1139 _GL_FUNCDECL_SYS (vasprintf, int,
1140 (char **result, const char *format, va_list args)
1141 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1142 _GL_ARG_NONNULL ((1, 2)));
1143 # endif
1144 _GL_CXXALIAS_SYS (vasprintf, int,
1145 (char **result, const char *format, va_list args));
1146 # endif
1147 _GL_CXXALIASWARN (vasprintf);
1148 #endif
1150 #if @GNULIB_VDPRINTF@
1151 # if @REPLACE_VDPRINTF@
1152 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1153 # define vdprintf rpl_vdprintf
1154 # endif
1155 _GL_FUNCDECL_RPL (vdprintf, int, (int fd, const char *format, va_list args)
1156 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1157 _GL_ARG_NONNULL ((2)));
1158 _GL_CXXALIAS_RPL (vdprintf, int, (int fd, const char *format, va_list args));
1159 # else
1160 # if !@HAVE_VDPRINTF@
1161 _GL_FUNCDECL_SYS (vdprintf, int, (int fd, const char *format, va_list args)
1162 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1163 _GL_ARG_NONNULL ((2)));
1164 # endif
1165 /* Need to cast, because on Solaris, the third parameter will likely be
1166 __va_list args. */
1167 _GL_CXXALIAS_SYS_CAST (vdprintf, int,
1168 (int fd, const char *format, va_list args));
1169 # endif
1170 _GL_CXXALIASWARN (vdprintf);
1171 #elif defined GNULIB_POSIXCHECK
1172 # undef vdprintf
1173 # if HAVE_RAW_DECL_VDPRINTF
1174 _GL_WARN_ON_USE (vdprintf, "vdprintf is unportable - "
1175 "use gnulib module vdprintf for portability");
1176 # endif
1177 #endif
1179 #if @GNULIB_VFPRINTF_POSIX@ || @GNULIB_VFPRINTF@
1180 # if (@GNULIB_VFPRINTF_POSIX@ && @REPLACE_VFPRINTF@) \
1181 || (@GNULIB_VFPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1182 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1183 # define vfprintf rpl_vfprintf
1184 # endif
1185 # define GNULIB_overrides_vfprintf 1
1186 # if @GNULIB_VFPRINTF_POSIX@
1187 _GL_FUNCDECL_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args)
1188 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1189 _GL_ARG_NONNULL ((1, 2)));
1190 # else
1191 _GL_FUNCDECL_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args)
1192 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 0)
1193 _GL_ARG_NONNULL ((1, 2)));
1194 # endif
1195 _GL_CXXALIAS_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args));
1196 # else
1197 /* Need to cast, because on Solaris, the third parameter is
1198 __va_list args
1199 and GCC's fixincludes did not change this to __gnuc_va_list. */
1200 _GL_CXXALIAS_SYS_CAST (vfprintf, int,
1201 (FILE *fp, const char *format, va_list args));
1202 # endif
1203 _GL_CXXALIASWARN (vfprintf);
1204 #endif
1205 #if !@GNULIB_VFPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1206 # if !GNULIB_overrides_vfprintf
1207 # undef vfprintf
1208 # endif
1209 /* Assume vfprintf is always declared. */
1210 _GL_WARN_ON_USE (vfprintf, "vfprintf is not always POSIX compliant - "
1211 "use gnulib module vfprintf-posix for portable "
1212 "POSIX compliance");
1213 #endif
1215 #if @GNULIB_VFSCANF@
1216 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1217 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1218 # undef vfscanf
1219 # define vfscanf rpl_vfscanf
1220 # endif
1221 _GL_FUNCDECL_RPL (vfscanf, int,
1222 (FILE *stream, const char *format, va_list args)
1223 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 0)
1224 _GL_ARG_NONNULL ((1, 2)));
1225 _GL_CXXALIAS_RPL (vfscanf, int,
1226 (FILE *stream, const char *format, va_list args));
1227 # else
1228 _GL_CXXALIAS_SYS (vfscanf, int,
1229 (FILE *stream, const char *format, va_list args));
1230 # endif
1231 _GL_CXXALIASWARN (vfscanf);
1232 #endif
1234 #if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VPRINTF@
1235 # if (@GNULIB_VPRINTF_POSIX@ && @REPLACE_VPRINTF@) \
1236 || (@GNULIB_VPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1237 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1238 # define vprintf rpl_vprintf
1239 # endif
1240 # define GNULIB_overrides_vprintf 1
1241 # if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
1242 _GL_FUNCDECL_RPL (vprintf, int, (const char *format, va_list args)
1243 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 0)
1244 _GL_ARG_NONNULL ((1)));
1245 # else
1246 _GL_FUNCDECL_RPL (vprintf, int, (const char *format, va_list args)
1247 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 0)
1248 _GL_ARG_NONNULL ((1)));
1249 # endif
1250 _GL_CXXALIAS_RPL (vprintf, int, (const char *format, va_list args));
1251 # else
1252 /* Need to cast, because on Solaris, the second parameter is
1253 __va_list args
1254 and GCC's fixincludes did not change this to __gnuc_va_list. */
1255 _GL_CXXALIAS_SYS_CAST (vprintf, int, (const char *format, va_list args));
1256 # endif
1257 _GL_CXXALIASWARN (vprintf);
1258 #endif
1259 #if !@GNULIB_VPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1260 # if !GNULIB_overrides_vprintf
1261 # undef vprintf
1262 # endif
1263 /* Assume vprintf is always declared. */
1264 _GL_WARN_ON_USE (vprintf, "vprintf is not always POSIX compliant - "
1265 "use gnulib module vprintf-posix for portable "
1266 "POSIX compliance");
1267 #endif
1269 #if @GNULIB_VSCANF@
1270 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1271 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1272 # undef vscanf
1273 # define vscanf rpl_vscanf
1274 # endif
1275 _GL_FUNCDECL_RPL (vscanf, int, (const char *format, va_list args)
1276 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 0)
1277 _GL_ARG_NONNULL ((1)));
1278 _GL_CXXALIAS_RPL (vscanf, int, (const char *format, va_list args));
1279 # else
1280 _GL_CXXALIAS_SYS (vscanf, int, (const char *format, va_list args));
1281 # endif
1282 _GL_CXXALIASWARN (vscanf);
1283 #endif
1285 #if @GNULIB_VSNPRINTF@
1286 # if @REPLACE_VSNPRINTF@
1287 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1288 # define vsnprintf rpl_vsnprintf
1289 # endif
1290 _GL_FUNCDECL_RPL (vsnprintf, int,
1291 (char *str, size_t size, const char *format, va_list args)
1292 _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1293 _GL_ARG_NONNULL ((3)));
1294 _GL_CXXALIAS_RPL (vsnprintf, int,
1295 (char *str, size_t size, const char *format, va_list args));
1296 # else
1297 # if !@HAVE_DECL_VSNPRINTF@
1298 _GL_FUNCDECL_SYS (vsnprintf, int,
1299 (char *str, size_t size, const char *format, va_list args)
1300 _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1301 _GL_ARG_NONNULL ((3)));
1302 # endif
1303 _GL_CXXALIAS_SYS (vsnprintf, int,
1304 (char *str, size_t size, const char *format, va_list args));
1305 # endif
1306 _GL_CXXALIASWARN (vsnprintf);
1307 #elif defined GNULIB_POSIXCHECK
1308 # undef vsnprintf
1309 # if HAVE_RAW_DECL_VSNPRINTF
1310 _GL_WARN_ON_USE (vsnprintf, "vsnprintf is unportable - "
1311 "use gnulib module vsnprintf for portability");
1312 # endif
1313 #endif
1315 #if @GNULIB_VSPRINTF_POSIX@
1316 # if @REPLACE_VSPRINTF@
1317 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1318 # define vsprintf rpl_vsprintf
1319 # endif
1320 _GL_FUNCDECL_RPL (vsprintf, int,
1321 (char *str, const char *format, va_list args)
1322 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1323 _GL_ARG_NONNULL ((1, 2)));
1324 _GL_CXXALIAS_RPL (vsprintf, int,
1325 (char *str, const char *format, va_list args));
1326 # else
1327 /* Need to cast, because on Solaris, the third parameter is
1328 __va_list args
1329 and GCC's fixincludes did not change this to __gnuc_va_list. */
1330 _GL_CXXALIAS_SYS_CAST (vsprintf, int,
1331 (char *str, const char *format, va_list args));
1332 # endif
1333 _GL_CXXALIASWARN (vsprintf);
1334 #elif defined GNULIB_POSIXCHECK
1335 # undef vsprintf
1336 /* Assume vsprintf is always declared. */
1337 _GL_WARN_ON_USE (vsprintf, "vsprintf is not always POSIX compliant - "
1338 "use gnulib module vsprintf-posix for portable "
1339 "POSIX compliance");
1340 #endif
1342 #endif /* _@GUARD_PREFIX@_STDIO_H */
1343 #endif /* _@GUARD_PREFIX@_STDIO_H */
1344 #endif