1 /* A GNU-like <stdio.h>.
3 Copyright (C) 2004, 2007-2020 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 2, or (at your option)
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 <https://www.gnu.org/licenses/>. */
19 @PRAGMA_SYSTEM_HEADER@
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@
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. */
54 /* Get off_t and ssize_t. Needed on many systems, including glibc 2.8
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 #ifndef _GL_ATTRIBUTE_FORMAT
66 # if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
67 # define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
69 # define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
73 /* _GL_ATTRIBUTE_FORMAT_PRINTF
74 indicates to GCC that the function takes a format string and arguments,
75 where the format string directives are the ones standardized by ISO C99
77 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
78 # define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
79 _GL_ATTRIBUTE_FORMAT ((__gnu_printf__, formatstring_parameter, first_argument))
81 # define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
82 _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
85 /* _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_PRINTF,
86 except that it indicates to GCC that the supported format string directives
87 are the ones of the system printf(), rather than the ones standardized by
89 #if GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU
90 # define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \
91 _GL_ATTRIBUTE_FORMAT_PRINTF (formatstring_parameter, first_argument)
93 # define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \
94 _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
97 /* _GL_ATTRIBUTE_FORMAT_SCANF
98 indicates to GCC that the function takes a format string and arguments,
99 where the format string directives are the ones standardized by ISO C99
101 #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
102 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
103 _GL_ATTRIBUTE_FORMAT ((__gnu_scanf__, formatstring_parameter, first_argument))
105 # define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
106 _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
109 /* _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_SCANF,
110 except that it indicates to GCC that the supported format string directives
111 are the ones of the system scanf(), rather than the ones standardized by
112 ISO C99 and POSIX. */
113 #define _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM(formatstring_parameter, first_argument) \
114 _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
116 /* Solaris 10 and NetBSD 7.0 declare renameat in <unistd.h>, not in <stdio.h>. */
117 /* But in any case avoid namespace pollution on glibc systems. */
118 #if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && (defined __sun || defined __NetBSD__) \
119 && ! defined __GLIBC__
123 /* Android 4.3 declares renameat in <sys/stat.h>, not in <stdio.h>. */
124 /* But in any case avoid namespace pollution on glibc systems. */
125 #if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && defined __ANDROID__ \
126 && ! defined __GLIBC__
127 # include <sys/stat.h>
130 /* MSVC declares 'perror' in <stdlib.h>, not in <stdio.h>. We must include
131 it before we #define perror rpl_perror. */
132 /* But in any case avoid namespace pollution on glibc systems. */
133 #if (@GNULIB_PERROR@ || defined GNULIB_POSIXCHECK) \
134 && (defined _WIN32 && ! defined __CYGWIN__) \
135 && ! defined __GLIBC__
139 /* MSVC declares 'remove' in <io.h>, not in <stdio.h>. We must include
140 it before we #define remove rpl_remove. */
141 /* MSVC declares 'rename' in <io.h>, not in <stdio.h>. We must include
142 it before we #define rename rpl_rename. */
143 /* But in any case avoid namespace pollution on glibc systems. */
144 #if (@GNULIB_REMOVE@ || @GNULIB_RENAME@ || defined GNULIB_POSIXCHECK) \
145 && (defined _WIN32 && ! defined __CYGWIN__) \
146 && ! defined __GLIBC__
151 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
153 /* The definition of _GL_ARG_NONNULL is copied here. */
155 /* The definition of _GL_WARN_ON_USE is copied here. */
157 /* Macros for stringification. */
158 #define _GL_STDIO_STRINGIZE(token) #token
159 #define _GL_STDIO_MACROEXPAND_AND_STRINGIZE(token) _GL_STDIO_STRINGIZE(token)
161 /* When also using extern inline, suppress the use of static inline in
162 standard headers of problematic Apple configurations, as Libc at
163 least through Libc-825.26 (2013-04-09) mishandles it; see, e.g.,
164 <https://lists.gnu.org/r/bug-gnulib/2012-12/msg00023.html>.
165 Perhaps Apple will fix this some day. */
166 #if (defined _GL_EXTERN_INLINE_IN_USE && defined __APPLE__ \
167 && defined __GNUC__ && defined __STDC__)
168 # undef putc_unlocked
172 # if @REPLACE_DPRINTF@
173 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
174 # define dprintf rpl_dprintf
176 _GL_FUNCDECL_RPL (dprintf
, int, (int fd
, const char *restrict format
, ...)
177 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
178 _GL_ARG_NONNULL ((2)));
179 _GL_CXXALIAS_RPL (dprintf
, int, (int fd
, const char *restrict format
, ...));
182 _GL_FUNCDECL_SYS (dprintf
, int, (int fd
, const char *restrict format
, ...)
183 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
184 _GL_ARG_NONNULL ((2)));
186 _GL_CXXALIAS_SYS (dprintf
, int, (int fd
, const char *restrict format
, ...));
188 _GL_CXXALIASWARN (dprintf
);
189 #elif defined GNULIB_POSIXCHECK
191 # if HAVE_RAW_DECL_DPRINTF
192 _GL_WARN_ON_USE (dprintf
, "dprintf is unportable - "
193 "use gnulib module dprintf for portability");
198 /* Close STREAM and its underlying file descriptor. */
199 # if @REPLACE_FCLOSE@
200 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
201 # define fclose rpl_fclose
203 _GL_FUNCDECL_RPL (fclose
, int, (FILE *stream
) _GL_ARG_NONNULL ((1)));
204 _GL_CXXALIAS_RPL (fclose
, int, (FILE *stream
));
206 _GL_CXXALIAS_SYS (fclose
, int, (FILE *stream
));
209 _GL_CXXALIASWARN (fclose
);
211 #elif defined GNULIB_POSIXCHECK
213 /* Assume fclose is always declared. */
214 _GL_WARN_ON_USE (fclose
, "fclose is not always POSIX compliant - "
215 "use gnulib module fclose for portable POSIX compliance");
219 # if @REPLACE_FDOPEN@
220 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
222 # define fdopen rpl_fdopen
224 _GL_FUNCDECL_RPL (fdopen
, FILE *, (int fd
, const char *mode
)
225 _GL_ARG_NONNULL ((2)));
226 _GL_CXXALIAS_RPL (fdopen
, FILE *, (int fd
, const char *mode
));
228 _GL_CXXALIAS_SYS (fdopen
, FILE *, (int fd
, const char *mode
));
230 _GL_CXXALIASWARN (fdopen
);
231 #elif defined GNULIB_POSIXCHECK
233 /* Assume fdopen is always declared. */
234 _GL_WARN_ON_USE (fdopen
, "fdopen on native Windows platforms is not POSIX compliant - "
235 "use gnulib module fdopen for portability");
239 /* Flush all pending data on STREAM according to POSIX rules. Both
240 output and seekable input streams are supported.
241 Note! LOSS OF DATA can occur if fflush is applied on an input stream
242 that is _not_seekable_ or on an update stream that is _not_seekable_
243 and in which the most recent operation was input. Seekability can
244 be tested with lseek(fileno(fp),0,SEEK_CUR). */
245 # if @REPLACE_FFLUSH@
246 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
247 # define fflush rpl_fflush
249 _GL_FUNCDECL_RPL (fflush
, int, (FILE *gl_stream
));
250 _GL_CXXALIAS_RPL (fflush
, int, (FILE *gl_stream
));
252 _GL_CXXALIAS_SYS (fflush
, int, (FILE *gl_stream
));
255 _GL_CXXALIASWARN (fflush
);
257 #elif defined GNULIB_POSIXCHECK
259 /* Assume fflush is always declared. */
260 _GL_WARN_ON_USE (fflush
, "fflush is not always POSIX compliant - "
261 "use gnulib module fflush for portable POSIX compliance");
265 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
266 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
268 # define fgetc rpl_fgetc
270 _GL_FUNCDECL_RPL (fgetc
, int, (FILE *stream
) _GL_ARG_NONNULL ((1)));
271 _GL_CXXALIAS_RPL (fgetc
, int, (FILE *stream
));
273 _GL_CXXALIAS_SYS (fgetc
, int, (FILE *stream
));
276 _GL_CXXALIASWARN (fgetc
);
281 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
282 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
284 # define fgets rpl_fgets
286 _GL_FUNCDECL_RPL (fgets
, char *,
287 (char *restrict s
, int n
, FILE *restrict stream
)
288 _GL_ARG_NONNULL ((1, 3)));
289 _GL_CXXALIAS_RPL (fgets
, char *,
290 (char *restrict s
, int n
, FILE *restrict stream
));
292 _GL_CXXALIAS_SYS (fgets
, char *,
293 (char *restrict s
, int n
, FILE *restrict stream
));
296 _GL_CXXALIASWARN (fgets
);
302 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
304 # define fopen rpl_fopen
306 _GL_FUNCDECL_RPL (fopen
, FILE *,
307 (const char *restrict filename
, const char *restrict mode
)
308 _GL_ARG_NONNULL ((1, 2)));
309 _GL_CXXALIAS_RPL (fopen
, FILE *,
310 (const char *restrict filename
, const char *restrict mode
));
312 _GL_CXXALIAS_SYS (fopen
, FILE *,
313 (const char *restrict filename
, const char *restrict mode
));
316 _GL_CXXALIASWARN (fopen
);
318 #elif defined GNULIB_POSIXCHECK
320 /* Assume fopen is always declared. */
321 _GL_WARN_ON_USE (fopen
, "fopen on native Windows platforms is not POSIX compliant - "
322 "use gnulib module fopen for portability");
325 #if @GNULIB_FPRINTF_POSIX@ || @GNULIB_FPRINTF@
326 # if (@GNULIB_FPRINTF_POSIX@ && @REPLACE_FPRINTF@) \
327 || (@GNULIB_FPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
328 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
329 # define fprintf rpl_fprintf
331 # define GNULIB_overrides_fprintf 1
332 # if @GNULIB_FPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
333 _GL_FUNCDECL_RPL (fprintf
, int,
334 (FILE *restrict fp
, const char *restrict format
, ...)
335 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
336 _GL_ARG_NONNULL ((1, 2)));
338 _GL_FUNCDECL_RPL (fprintf
, int,
339 (FILE *restrict fp
, const char *restrict format
, ...)
340 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 3)
341 _GL_ARG_NONNULL ((1, 2)));
343 _GL_CXXALIAS_RPL (fprintf
, int,
344 (FILE *restrict fp
, const char *restrict format
, ...));
346 _GL_CXXALIAS_SYS (fprintf
, int,
347 (FILE *restrict fp
, const char *restrict format
, ...));
350 _GL_CXXALIASWARN (fprintf
);
353 #if !@GNULIB_FPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
354 # if !GNULIB_overrides_fprintf
357 /* Assume fprintf is always declared. */
358 _GL_WARN_ON_USE (fprintf
, "fprintf is not always POSIX compliant - "
359 "use gnulib module fprintf-posix for portable "
364 /* Discard all pending buffered I/O data on STREAM.
365 STREAM must not be wide-character oriented.
366 When discarding pending output, the file position is set back to where it
367 was before the write calls. When discarding pending input, the file
368 position is advanced to match the end of the previously read input.
369 Return 0 if successful. Upon error, return -1 and set errno. */
370 # if @REPLACE_FPURGE@
371 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
372 # define fpurge rpl_fpurge
374 _GL_FUNCDECL_RPL (fpurge
, int, (FILE *gl_stream
) _GL_ARG_NONNULL ((1)));
375 _GL_CXXALIAS_RPL (fpurge
, int, (FILE *gl_stream
));
377 # if !@HAVE_DECL_FPURGE@
378 _GL_FUNCDECL_SYS (fpurge
, int, (FILE *gl_stream
) _GL_ARG_NONNULL ((1)));
380 _GL_CXXALIAS_SYS (fpurge
, int, (FILE *gl_stream
));
382 _GL_CXXALIASWARN (fpurge
);
383 #elif defined GNULIB_POSIXCHECK
385 # if HAVE_RAW_DECL_FPURGE
386 _GL_WARN_ON_USE (fpurge
, "fpurge is not always present - "
387 "use gnulib module fpurge for portability");
392 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
393 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
395 # define fputc rpl_fputc
397 _GL_FUNCDECL_RPL (fputc
, int, (int c
, FILE *stream
) _GL_ARG_NONNULL ((2)));
398 _GL_CXXALIAS_RPL (fputc
, int, (int c
, FILE *stream
));
400 _GL_CXXALIAS_SYS (fputc
, int, (int c
, FILE *stream
));
403 _GL_CXXALIASWARN (fputc
);
408 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
409 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
411 # define fputs rpl_fputs
413 _GL_FUNCDECL_RPL (fputs
, int,
414 (const char *restrict string
, FILE *restrict stream
)
415 _GL_ARG_NONNULL ((1, 2)));
416 _GL_CXXALIAS_RPL (fputs
, int,
417 (const char *restrict string
, FILE *restrict stream
));
419 _GL_CXXALIAS_SYS (fputs
, int,
420 (const char *restrict string
, FILE *restrict stream
));
423 _GL_CXXALIASWARN (fputs
);
428 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
429 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
431 # define fread rpl_fread
433 _GL_FUNCDECL_RPL (fread
, size_t,
434 (void *restrict ptr
, size_t s
, size_t n
,
435 FILE *restrict stream
)
436 _GL_ARG_NONNULL ((4)));
437 _GL_CXXALIAS_RPL (fread
, size_t,
438 (void *restrict ptr
, size_t s
, size_t n
,
439 FILE *restrict stream
));
441 _GL_CXXALIAS_SYS (fread
, size_t,
442 (void *restrict ptr
, size_t s
, size_t n
,
443 FILE *restrict stream
));
446 _GL_CXXALIASWARN (fread
);
451 # if @REPLACE_FREOPEN@
452 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
454 # define freopen rpl_freopen
456 _GL_FUNCDECL_RPL (freopen
, FILE *,
457 (const char *restrict filename
, const char *restrict mode
,
458 FILE *restrict stream
)
459 _GL_ARG_NONNULL ((2, 3)));
460 _GL_CXXALIAS_RPL (freopen
, FILE *,
461 (const char *restrict filename
, const char *restrict mode
,
462 FILE *restrict stream
));
464 _GL_CXXALIAS_SYS (freopen
, FILE *,
465 (const char *restrict filename
, const char *restrict mode
,
466 FILE *restrict stream
));
469 _GL_CXXALIASWARN (freopen
);
471 #elif defined GNULIB_POSIXCHECK
473 /* Assume freopen is always declared. */
474 _GL_WARN_ON_USE (freopen
,
475 "freopen on native Windows platforms is not POSIX compliant - "
476 "use gnulib module freopen for portability");
480 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
481 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
483 # define fscanf rpl_fscanf
485 _GL_FUNCDECL_RPL (fscanf
, int,
486 (FILE *restrict stream
, const char *restrict format
, ...)
487 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 3)
488 _GL_ARG_NONNULL ((1, 2)));
489 _GL_CXXALIAS_RPL (fscanf
, int,
490 (FILE *restrict stream
, const char *restrict format
, ...));
492 _GL_CXXALIAS_SYS (fscanf
, int,
493 (FILE *restrict stream
, const char *restrict format
, ...));
496 _GL_CXXALIASWARN (fscanf
);
501 /* Set up the following warnings, based on which modules are in use.
502 GNU Coding Standards discourage the use of fseek, since it imposes
503 an arbitrary limitation on some 32-bit hosts. Remember that the
504 fseek module depends on the fseeko module, so we only have three
507 1. The developer is not using either module. Issue a warning under
508 GNULIB_POSIXCHECK for both functions, to remind them that both
509 functions have bugs on some systems. _GL_NO_LARGE_FILES has no
510 impact on this warning.
512 2. The developer is using both modules. They may be unaware of the
513 arbitrary limitations of fseek, so issue a warning under
514 GNULIB_POSIXCHECK. On the other hand, they may be using both
515 modules intentionally, so the developer can define
516 _GL_NO_LARGE_FILES in the compilation units where the use of fseek
517 is safe, to silence the warning.
519 3. The developer is using the fseeko module, but not fseek. Gnulib
520 guarantees that fseek will still work around platform bugs in that
521 case, but we presume that the developer is aware of the pitfalls of
522 fseek and was trying to avoid it, so issue a warning even when
523 GNULIB_POSIXCHECK is undefined. Again, _GL_NO_LARGE_FILES can be
524 defined to silence the warning in particular compilation units.
525 In C++ compilations with GNULIB_NAMESPACE, in order to avoid that
526 fseek gets defined as a macro, it is recommended that the developer
527 uses the fseek module, even if he is not calling the fseek function.
529 Most gnulib clients that perform stream operations should fall into
533 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
534 # define _GL_FSEEK_WARN /* Category 2, above. */
538 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
540 # define fseek rpl_fseek
542 _GL_FUNCDECL_RPL (fseek
, int, (FILE *fp
, long offset
, int whence
)
543 _GL_ARG_NONNULL ((1)));
544 _GL_CXXALIAS_RPL (fseek
, int, (FILE *fp
, long offset
, int whence
));
546 _GL_CXXALIAS_SYS (fseek
, int, (FILE *fp
, long offset
, int whence
));
549 _GL_CXXALIASWARN (fseek
);
554 # if !@GNULIB_FSEEK@ && !defined _GL_NO_LARGE_FILES
555 # define _GL_FSEEK_WARN /* Category 3, above. */
558 # if @REPLACE_FSEEKO@
559 /* Provide an fseeko function that is aware of a preceding fflush(), and which
561 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
563 # define fseeko rpl_fseeko
565 _GL_FUNCDECL_RPL (fseeko
, int, (FILE *fp
, off_t offset
, int whence
)
566 _GL_ARG_NONNULL ((1)));
567 _GL_CXXALIAS_RPL (fseeko
, int, (FILE *fp
, off_t offset
, int whence
));
569 # if ! @HAVE_DECL_FSEEKO@
570 _GL_FUNCDECL_SYS (fseeko
, int, (FILE *fp
, off_t offset
, int whence
)
571 _GL_ARG_NONNULL ((1)));
573 _GL_CXXALIAS_SYS (fseeko
, int, (FILE *fp
, off_t offset
, int whence
));
575 _GL_CXXALIASWARN (fseeko
);
576 #elif defined GNULIB_POSIXCHECK
577 # define _GL_FSEEK_WARN /* Category 1, above. */
580 # if HAVE_RAW_DECL_FSEEKO
581 _GL_WARN_ON_USE (fseeko
, "fseeko is unportable - "
582 "use gnulib module fseeko for portability");
586 #ifdef _GL_FSEEK_WARN
587 # undef _GL_FSEEK_WARN
588 /* Here, either fseek is undefined (but C89 guarantees that it is
589 declared), or it is defined as rpl_fseek (declared above). */
590 _GL_WARN_ON_USE (fseek
, "fseek cannot handle files larger than 4 GB "
591 "on 32-bit platforms - "
592 "use fseeko function for handling of large files");
596 /* ftell, ftello. See the comments on fseek/fseeko. */
599 # if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
600 # define _GL_FTELL_WARN /* Category 2, above. */
604 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
606 # define ftell rpl_ftell
608 _GL_FUNCDECL_RPL (ftell
, long, (FILE *fp
) _GL_ARG_NONNULL ((1)));
609 _GL_CXXALIAS_RPL (ftell
, long, (FILE *fp
));
611 _GL_CXXALIAS_SYS (ftell
, long, (FILE *fp
));
614 _GL_CXXALIASWARN (ftell
);
619 # if !@GNULIB_FTELL@ && !defined _GL_NO_LARGE_FILES
620 # define _GL_FTELL_WARN /* Category 3, above. */
623 # if @REPLACE_FTELLO@
624 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
626 # define ftello rpl_ftello
628 _GL_FUNCDECL_RPL (ftello
, off_t
, (FILE *fp
) _GL_ARG_NONNULL ((1)));
629 _GL_CXXALIAS_RPL (ftello
, off_t
, (FILE *fp
));
631 # if ! @HAVE_DECL_FTELLO@
632 _GL_FUNCDECL_SYS (ftello
, off_t
, (FILE *fp
) _GL_ARG_NONNULL ((1)));
634 _GL_CXXALIAS_SYS (ftello
, off_t
, (FILE *fp
));
636 _GL_CXXALIASWARN (ftello
);
637 #elif defined GNULIB_POSIXCHECK
638 # define _GL_FTELL_WARN /* Category 1, above. */
641 # if HAVE_RAW_DECL_FTELLO
642 _GL_WARN_ON_USE (ftello
, "ftello is unportable - "
643 "use gnulib module ftello for portability");
647 #ifdef _GL_FTELL_WARN
648 # undef _GL_FTELL_WARN
649 /* Here, either ftell is undefined (but C89 guarantees that it is
650 declared), or it is defined as rpl_ftell (declared above). */
651 _GL_WARN_ON_USE (ftell
, "ftell cannot handle files larger than 4 GB "
652 "on 32-bit platforms - "
653 "use ftello function for handling of large files");
658 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
659 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
661 # define fwrite rpl_fwrite
663 _GL_FUNCDECL_RPL (fwrite
, size_t,
664 (const void *restrict ptr
, size_t s
, size_t n
,
665 FILE *restrict stream
)
666 _GL_ARG_NONNULL ((1, 4)));
667 _GL_CXXALIAS_RPL (fwrite
, size_t,
668 (const void *restrict ptr
, size_t s
, size_t n
,
669 FILE *restrict stream
));
671 _GL_CXXALIAS_SYS (fwrite
, size_t,
672 (const void *restrict ptr
, size_t s
, size_t n
,
673 FILE *restrict stream
));
675 /* Work around bug 11959 when fortifying glibc 2.4 through 2.15
676 <https://sourceware.org/bugzilla/show_bug.cgi?id=11959>,
677 which sometimes causes an unwanted diagnostic for fwrite calls.
678 This affects only function declaration attributes under certain
679 versions of gcc and clang, and is not needed for C++. */
680 # if (0 < __USE_FORTIFY_LEVEL \
681 && __GLIBC__ == 2 && 4 <= __GLIBC_MINOR__ && __GLIBC_MINOR__ <= 15 \
682 && 3 < __GNUC__ + (4 <= __GNUC_MINOR__) \
683 && !defined __cplusplus)
685 # undef fwrite_unlocked
686 extern size_t __REDIRECT (rpl_fwrite
,
687 (const void *__restrict
, size_t, size_t,
690 extern size_t __REDIRECT (rpl_fwrite_unlocked
,
691 (const void *__restrict
, size_t, size_t,
694 # define fwrite rpl_fwrite
695 # define fwrite_unlocked rpl_fwrite_unlocked
699 _GL_CXXALIASWARN (fwrite
);
704 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
705 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
707 # define getc rpl_fgetc
709 _GL_FUNCDECL_RPL (fgetc
, int, (FILE *stream
) _GL_ARG_NONNULL ((1)));
710 _GL_CXXALIAS_RPL_1 (getc
, rpl_fgetc
, int, (FILE *stream
));
712 _GL_CXXALIAS_SYS (getc
, int, (FILE *stream
));
715 _GL_CXXALIASWARN (getc
);
720 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
721 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
723 # define getchar rpl_getchar
725 _GL_FUNCDECL_RPL (getchar
, int, (void));
726 _GL_CXXALIAS_RPL (getchar
, int, (void));
728 _GL_CXXALIAS_SYS (getchar
, int, (void));
731 _GL_CXXALIASWARN (getchar
);
735 #if @GNULIB_GETDELIM@
736 /* Read input, up to (and including) the next occurrence of DELIMITER, from
737 STREAM, store it in *LINEPTR (and NUL-terminate it).
738 *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
739 bytes of space. It is realloc'd as necessary.
740 Return the number of bytes read and stored at *LINEPTR (not including the
741 NUL terminator), or -1 on error or EOF. */
742 # if @REPLACE_GETDELIM@
743 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
745 # define getdelim rpl_getdelim
747 _GL_FUNCDECL_RPL (getdelim
, ssize_t
,
748 (char **restrict lineptr
, size_t *restrict linesize
,
750 FILE *restrict stream
)
751 _GL_ARG_NONNULL ((1, 2, 4)));
752 _GL_CXXALIAS_RPL (getdelim
, ssize_t
,
753 (char **restrict lineptr
, size_t *restrict linesize
,
755 FILE *restrict stream
));
757 # if !@HAVE_DECL_GETDELIM@
758 _GL_FUNCDECL_SYS (getdelim
, ssize_t
,
759 (char **restrict lineptr
, size_t *restrict linesize
,
761 FILE *restrict stream
)
762 _GL_ARG_NONNULL ((1, 2, 4)));
764 _GL_CXXALIAS_SYS (getdelim
, ssize_t
,
765 (char **restrict lineptr
, size_t *restrict linesize
,
767 FILE *restrict stream
));
769 _GL_CXXALIASWARN (getdelim
);
770 #elif defined GNULIB_POSIXCHECK
772 # if HAVE_RAW_DECL_GETDELIM
773 _GL_WARN_ON_USE (getdelim
, "getdelim is unportable - "
774 "use gnulib module getdelim for portability");
779 /* Read a line, up to (and including) the next newline, from STREAM, store it
780 in *LINEPTR (and NUL-terminate it).
781 *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
782 bytes of space. It is realloc'd as necessary.
783 Return the number of bytes read and stored at *LINEPTR (not including the
784 NUL terminator), or -1 on error or EOF. */
785 # if @REPLACE_GETLINE@
786 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
788 # define getline rpl_getline
790 _GL_FUNCDECL_RPL (getline
, ssize_t
,
791 (char **restrict lineptr
, size_t *restrict linesize
,
792 FILE *restrict stream
)
793 _GL_ARG_NONNULL ((1, 2, 3)));
794 _GL_CXXALIAS_RPL (getline
, ssize_t
,
795 (char **restrict lineptr
, size_t *restrict linesize
,
796 FILE *restrict stream
));
798 # if !@HAVE_DECL_GETLINE@
799 _GL_FUNCDECL_SYS (getline
, ssize_t
,
800 (char **restrict lineptr
, size_t *restrict linesize
,
801 FILE *restrict stream
)
802 _GL_ARG_NONNULL ((1, 2, 3)));
804 _GL_CXXALIAS_SYS (getline
, ssize_t
,
805 (char **restrict lineptr
, size_t *restrict linesize
,
806 FILE *restrict stream
));
808 # if @HAVE_DECL_GETLINE@
809 _GL_CXXALIASWARN (getline
);
811 #elif defined GNULIB_POSIXCHECK
813 # if HAVE_RAW_DECL_GETLINE
814 _GL_WARN_ON_USE (getline
, "getline is unportable - "
815 "use gnulib module getline for portability");
819 /* It is very rare that the developer ever has full control of stdin,
820 so any use of gets warrants an unconditional warning; besides, C11
823 #if HAVE_RAW_DECL_GETS && !defined __cplusplus
824 _GL_WARN_ON_USE (gets
, "gets is a security hole - use fgets instead");
827 #if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@
829 /* Grow an obstack with formatted output. Return the number of
830 bytes added to OBS. No trailing nul byte is added, and the
831 object should be closed with obstack_finish before use. Upon
832 memory allocation error, call obstack_alloc_failed_handler. Upon
833 other error, return -1. */
834 # if @REPLACE_OBSTACK_PRINTF@
835 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
836 # define obstack_printf rpl_obstack_printf
838 _GL_FUNCDECL_RPL (obstack_printf
, int,
839 (struct obstack
*obs
, const char *format
, ...)
840 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
841 _GL_ARG_NONNULL ((1, 2)));
842 _GL_CXXALIAS_RPL (obstack_printf
, int,
843 (struct obstack
*obs
, const char *format
, ...));
845 # if !@HAVE_DECL_OBSTACK_PRINTF@
846 _GL_FUNCDECL_SYS (obstack_printf
, int,
847 (struct obstack
*obs
, const char *format
, ...)
848 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
849 _GL_ARG_NONNULL ((1, 2)));
851 _GL_CXXALIAS_SYS (obstack_printf
, int,
852 (struct obstack
*obs
, const char *format
, ...));
854 _GL_CXXALIASWARN (obstack_printf
);
855 # if @REPLACE_OBSTACK_PRINTF@
856 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
857 # define obstack_vprintf rpl_obstack_vprintf
859 _GL_FUNCDECL_RPL (obstack_vprintf
, int,
860 (struct obstack
*obs
, const char *format
, va_list args
)
861 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
862 _GL_ARG_NONNULL ((1, 2)));
863 _GL_CXXALIAS_RPL (obstack_vprintf
, int,
864 (struct obstack
*obs
, const char *format
, va_list args
));
866 # if !@HAVE_DECL_OBSTACK_PRINTF@
867 _GL_FUNCDECL_SYS (obstack_vprintf
, int,
868 (struct obstack
*obs
, const char *format
, va_list args
)
869 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
870 _GL_ARG_NONNULL ((1, 2)));
872 _GL_CXXALIAS_SYS (obstack_vprintf
, int,
873 (struct obstack
*obs
, const char *format
, va_list args
));
875 _GL_CXXALIASWARN (obstack_vprintf
);
880 _GL_FUNCDECL_SYS (pclose
, int, (FILE *stream
) _GL_ARG_NONNULL ((1)));
882 _GL_CXXALIAS_SYS (pclose
, int, (FILE *stream
));
883 _GL_CXXALIASWARN (pclose
);
884 #elif defined GNULIB_POSIXCHECK
886 # if HAVE_RAW_DECL_PCLOSE
887 _GL_WARN_ON_USE (pclose
, "pclose is unportable - "
888 "use gnulib module pclose for more portability");
893 /* Print a message to standard error, describing the value of ERRNO,
894 (if STRING is not NULL and not empty) prefixed with STRING and ": ",
895 and terminated with a newline. */
896 # if @REPLACE_PERROR@
897 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
898 # define perror rpl_perror
900 _GL_FUNCDECL_RPL (perror
, void, (const char *string
));
901 _GL_CXXALIAS_RPL (perror
, void, (const char *string
));
903 _GL_CXXALIAS_SYS (perror
, void, (const char *string
));
906 _GL_CXXALIASWARN (perror
);
908 #elif defined GNULIB_POSIXCHECK
910 /* Assume perror is always declared. */
911 _GL_WARN_ON_USE (perror
, "perror is not always POSIX compliant - "
912 "use gnulib module perror for portability");
917 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
919 # define popen rpl_popen
921 _GL_FUNCDECL_RPL (popen
, FILE *, (const char *cmd
, const char *mode
)
922 _GL_ARG_NONNULL ((1, 2)));
923 _GL_CXXALIAS_RPL (popen
, FILE *, (const char *cmd
, const char *mode
));
926 _GL_FUNCDECL_SYS (popen
, FILE *, (const char *cmd
, const char *mode
)
927 _GL_ARG_NONNULL ((1, 2)));
929 _GL_CXXALIAS_SYS (popen
, FILE *, (const char *cmd
, const char *mode
));
931 _GL_CXXALIASWARN (popen
);
932 #elif defined GNULIB_POSIXCHECK
934 # if HAVE_RAW_DECL_POPEN
935 _GL_WARN_ON_USE (popen
, "popen is buggy on some platforms - "
936 "use gnulib module popen or pipe for more portability");
940 #if @GNULIB_PRINTF_POSIX@ || @GNULIB_PRINTF@
941 # if (@GNULIB_PRINTF_POSIX@ && @REPLACE_PRINTF@) \
942 || (@GNULIB_PRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
943 # if defined __GNUC__
944 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
945 /* Don't break __attribute__((format(printf,M,N))). */
946 # define printf __printf__
948 # if @GNULIB_PRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
949 _GL_FUNCDECL_RPL_1 (__printf__
, int,
950 (const char *restrict format
, ...)
951 __asm__ (@ASM_SYMBOL_PREFIX@
952 _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf
))
953 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
954 _GL_ARG_NONNULL ((1)));
956 _GL_FUNCDECL_RPL_1 (__printf__
, int,
957 (const char *restrict format
, ...)
958 __asm__ (@ASM_SYMBOL_PREFIX@
959 _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf
))
960 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 2)
961 _GL_ARG_NONNULL ((1)));
963 _GL_CXXALIAS_RPL_1 (printf
, __printf__
, int, (const char *format
, ...));
965 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
966 # define printf rpl_printf
968 _GL_FUNCDECL_RPL (printf
, int,
969 (const char *restrict format
, ...)
970 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
971 _GL_ARG_NONNULL ((1)));
972 _GL_CXXALIAS_RPL (printf
, int, (const char *restrict format
, ...));
974 # define GNULIB_overrides_printf 1
976 _GL_CXXALIAS_SYS (printf
, int, (const char *restrict format
, ...));
979 _GL_CXXALIASWARN (printf
);
982 #if !@GNULIB_PRINTF_POSIX@ && defined GNULIB_POSIXCHECK
983 # if !GNULIB_overrides_printf
986 /* Assume printf is always declared. */
987 _GL_WARN_ON_USE (printf
, "printf is not always POSIX compliant - "
988 "use gnulib module printf-posix for portable "
993 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
994 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
996 # define putc rpl_fputc
998 _GL_FUNCDECL_RPL (fputc
, int, (int c
, FILE *stream
) _GL_ARG_NONNULL ((2)));
999 _GL_CXXALIAS_RPL_1 (putc
, rpl_fputc
, int, (int c
, FILE *stream
));
1001 _GL_CXXALIAS_SYS (putc
, int, (int c
, FILE *stream
));
1004 _GL_CXXALIASWARN (putc
);
1008 #if @GNULIB_PUTCHAR@
1009 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
1010 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1012 # define putchar rpl_putchar
1014 _GL_FUNCDECL_RPL (putchar
, int, (int c
));
1015 _GL_CXXALIAS_RPL (putchar
, int, (int c
));
1017 _GL_CXXALIAS_SYS (putchar
, int, (int c
));
1020 _GL_CXXALIASWARN (putchar
);
1025 # if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
1026 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1028 # define puts rpl_puts
1030 _GL_FUNCDECL_RPL (puts
, int, (const char *string
) _GL_ARG_NONNULL ((1)));
1031 _GL_CXXALIAS_RPL (puts
, int, (const char *string
));
1033 _GL_CXXALIAS_SYS (puts
, int, (const char *string
));
1036 _GL_CXXALIASWARN (puts
);
1041 # if @REPLACE_REMOVE@
1042 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1044 # define remove rpl_remove
1046 _GL_FUNCDECL_RPL (remove
, int, (const char *name
) _GL_ARG_NONNULL ((1)));
1047 _GL_CXXALIAS_RPL (remove
, int, (const char *name
));
1049 _GL_CXXALIAS_SYS (remove
, int, (const char *name
));
1052 _GL_CXXALIASWARN (remove
);
1054 #elif defined GNULIB_POSIXCHECK
1056 /* Assume remove is always declared. */
1057 _GL_WARN_ON_USE (remove
, "remove cannot handle directories on some platforms - "
1058 "use gnulib module remove for more portability");
1062 # if @REPLACE_RENAME@
1063 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1065 # define rename rpl_rename
1067 _GL_FUNCDECL_RPL (rename
, int,
1068 (const char *old_filename
, const char *new_filename
)
1069 _GL_ARG_NONNULL ((1, 2)));
1070 _GL_CXXALIAS_RPL (rename
, int,
1071 (const char *old_filename
, const char *new_filename
));
1073 _GL_CXXALIAS_SYS (rename
, int,
1074 (const char *old_filename
, const char *new_filename
));
1077 _GL_CXXALIASWARN (rename
);
1079 #elif defined GNULIB_POSIXCHECK
1081 /* Assume rename is always declared. */
1082 _GL_WARN_ON_USE (rename
, "rename is buggy on some platforms - "
1083 "use gnulib module rename for more portability");
1086 #if @GNULIB_RENAMEAT@
1087 # if @REPLACE_RENAMEAT@
1088 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1090 # define renameat rpl_renameat
1092 _GL_FUNCDECL_RPL (renameat
, int,
1093 (int fd1
, char const *file1
, int fd2
, char const *file2
)
1094 _GL_ARG_NONNULL ((2, 4)));
1095 _GL_CXXALIAS_RPL (renameat
, int,
1096 (int fd1
, char const *file1
, int fd2
, char const *file2
));
1098 # if !@HAVE_RENAMEAT@
1099 _GL_FUNCDECL_SYS (renameat
, int,
1100 (int fd1
, char const *file1
, int fd2
, char const *file2
)
1101 _GL_ARG_NONNULL ((2, 4)));
1103 _GL_CXXALIAS_SYS (renameat
, int,
1104 (int fd1
, char const *file1
, int fd2
, char const *file2
));
1106 _GL_CXXALIASWARN (renameat
);
1107 #elif defined GNULIB_POSIXCHECK
1109 # if HAVE_RAW_DECL_RENAMEAT
1110 _GL_WARN_ON_USE (renameat
, "renameat is not portable - "
1111 "use gnulib module renameat for portability");
1116 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1117 # if defined __GNUC__
1118 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1120 /* Don't break __attribute__((format(scanf,M,N))). */
1121 # define scanf __scanf__
1123 _GL_FUNCDECL_RPL_1 (__scanf__
, int,
1124 (const char *restrict format
, ...)
1125 __asm__ (@ASM_SYMBOL_PREFIX@
1126 _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_scanf
))
1127 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
1128 _GL_ARG_NONNULL ((1)));
1129 _GL_CXXALIAS_RPL_1 (scanf
, __scanf__
, int, (const char *restrict format
, ...));
1131 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1133 # define scanf rpl_scanf
1135 _GL_FUNCDECL_RPL (scanf
, int, (const char *restrict format
, ...)
1136 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
1137 _GL_ARG_NONNULL ((1)));
1138 _GL_CXXALIAS_RPL (scanf
, int, (const char *restrict format
, ...));
1141 _GL_CXXALIAS_SYS (scanf
, int, (const char *restrict format
, ...));
1144 _GL_CXXALIASWARN (scanf
);
1148 #if @GNULIB_SNPRINTF@
1149 # if @REPLACE_SNPRINTF@
1150 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1151 # define snprintf rpl_snprintf
1153 _GL_FUNCDECL_RPL (snprintf
, int,
1154 (char *restrict str
, size_t size
,
1155 const char *restrict format
, ...)
1156 _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
1157 _GL_ARG_NONNULL ((3)));
1158 _GL_CXXALIAS_RPL (snprintf
, int,
1159 (char *restrict str
, size_t size
,
1160 const char *restrict format
, ...));
1162 # if !@HAVE_DECL_SNPRINTF@
1163 _GL_FUNCDECL_SYS (snprintf
, int,
1164 (char *restrict str
, size_t size
,
1165 const char *restrict format
, ...)
1166 _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
1167 _GL_ARG_NONNULL ((3)));
1169 _GL_CXXALIAS_SYS (snprintf
, int,
1170 (char *restrict str
, size_t size
,
1171 const char *restrict format
, ...));
1173 _GL_CXXALIASWARN (snprintf
);
1174 #elif defined GNULIB_POSIXCHECK
1176 # if HAVE_RAW_DECL_SNPRINTF
1177 _GL_WARN_ON_USE (snprintf
, "snprintf is unportable - "
1178 "use gnulib module snprintf for portability");
1182 /* Some people would argue that all sprintf uses should be warned about
1183 (for example, OpenBSD issues a link warning for it),
1184 since it can cause security holes due to buffer overruns.
1185 However, we believe that sprintf can be used safely, and is more
1186 efficient than snprintf in those safe cases; and as proof of our
1187 belief, we use sprintf in several gnulib modules. So this header
1188 intentionally avoids adding a warning to sprintf except when
1189 GNULIB_POSIXCHECK is defined. */
1191 #if @GNULIB_SPRINTF_POSIX@
1192 # if @REPLACE_SPRINTF@
1193 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1194 # define sprintf rpl_sprintf
1196 _GL_FUNCDECL_RPL (sprintf
, int,
1197 (char *restrict str
, const char *restrict format
, ...)
1198 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1199 _GL_ARG_NONNULL ((1, 2)));
1200 _GL_CXXALIAS_RPL (sprintf
, int,
1201 (char *restrict str
, const char *restrict format
, ...));
1203 _GL_CXXALIAS_SYS (sprintf
, int,
1204 (char *restrict str
, const char *restrict format
, ...));
1207 _GL_CXXALIASWARN (sprintf
);
1209 #elif defined GNULIB_POSIXCHECK
1211 /* Assume sprintf is always declared. */
1212 _GL_WARN_ON_USE (sprintf
, "sprintf is not always POSIX compliant - "
1213 "use gnulib module sprintf-posix for portable "
1214 "POSIX compliance");
1217 #if @GNULIB_TMPFILE@
1218 # if @REPLACE_TMPFILE@
1219 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1220 # define tmpfile rpl_tmpfile
1222 _GL_FUNCDECL_RPL (tmpfile
, FILE *, (void));
1223 _GL_CXXALIAS_RPL (tmpfile
, FILE *, (void));
1225 _GL_CXXALIAS_SYS (tmpfile
, FILE *, (void));
1228 _GL_CXXALIASWARN (tmpfile
);
1230 #elif defined GNULIB_POSIXCHECK
1232 # if HAVE_RAW_DECL_TMPFILE
1233 _GL_WARN_ON_USE (tmpfile
, "tmpfile is not usable on mingw - "
1234 "use gnulib module tmpfile for portability");
1238 #if @GNULIB_VASPRINTF@
1239 /* Write formatted output to a string dynamically allocated with malloc().
1240 If the memory allocation succeeds, store the address of the string in
1241 *RESULT and return the number of resulting bytes, excluding the trailing
1242 NUL. Upon memory allocation error, or some other error, return -1. */
1243 # if @REPLACE_VASPRINTF@
1244 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1245 # define asprintf rpl_asprintf
1247 _GL_FUNCDECL_RPL (asprintf
, int,
1248 (char **result
, const char *format
, ...)
1249 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1250 _GL_ARG_NONNULL ((1, 2)));
1251 _GL_CXXALIAS_RPL (asprintf
, int,
1252 (char **result
, const char *format
, ...));
1254 # if !@HAVE_VASPRINTF@
1255 _GL_FUNCDECL_SYS (asprintf
, int,
1256 (char **result
, const char *format
, ...)
1257 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1258 _GL_ARG_NONNULL ((1, 2)));
1260 _GL_CXXALIAS_SYS (asprintf
, int,
1261 (char **result
, const char *format
, ...));
1263 _GL_CXXALIASWARN (asprintf
);
1264 # if @REPLACE_VASPRINTF@
1265 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1266 # define vasprintf rpl_vasprintf
1268 _GL_FUNCDECL_RPL (vasprintf
, int,
1269 (char **result
, const char *format
, va_list args
)
1270 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1271 _GL_ARG_NONNULL ((1, 2)));
1272 _GL_CXXALIAS_RPL (vasprintf
, int,
1273 (char **result
, const char *format
, va_list args
));
1275 # if !@HAVE_VASPRINTF@
1276 _GL_FUNCDECL_SYS (vasprintf
, int,
1277 (char **result
, const char *format
, va_list args
)
1278 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1279 _GL_ARG_NONNULL ((1, 2)));
1281 _GL_CXXALIAS_SYS (vasprintf
, int,
1282 (char **result
, const char *format
, va_list args
));
1284 _GL_CXXALIASWARN (vasprintf
);
1287 #if @GNULIB_VDPRINTF@
1288 # if @REPLACE_VDPRINTF@
1289 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1290 # define vdprintf rpl_vdprintf
1292 _GL_FUNCDECL_RPL (vdprintf
, int,
1293 (int fd
, const char *restrict format
, va_list args
)
1294 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1295 _GL_ARG_NONNULL ((2)));
1296 _GL_CXXALIAS_RPL (vdprintf
, int,
1297 (int fd
, const char *restrict format
, va_list args
));
1299 # if !@HAVE_VDPRINTF@
1300 _GL_FUNCDECL_SYS (vdprintf
, int,
1301 (int fd
, const char *restrict format
, va_list args
)
1302 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1303 _GL_ARG_NONNULL ((2)));
1305 /* Need to cast, because on Solaris, the third parameter will likely be
1307 _GL_CXXALIAS_SYS_CAST (vdprintf
, int,
1308 (int fd
, const char *restrict format
, va_list args
));
1311 _GL_CXXALIASWARN (vdprintf
);
1313 #elif defined GNULIB_POSIXCHECK
1315 # if HAVE_RAW_DECL_VDPRINTF
1316 _GL_WARN_ON_USE (vdprintf
, "vdprintf is unportable - "
1317 "use gnulib module vdprintf for portability");
1321 #if @GNULIB_VFPRINTF_POSIX@ || @GNULIB_VFPRINTF@
1322 # if (@GNULIB_VFPRINTF_POSIX@ && @REPLACE_VFPRINTF@) \
1323 || (@GNULIB_VFPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1324 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1325 # define vfprintf rpl_vfprintf
1327 # define GNULIB_overrides_vfprintf 1
1328 # if @GNULIB_VFPRINTF_POSIX@
1329 _GL_FUNCDECL_RPL (vfprintf
, int,
1331 const char *restrict format
, va_list args
)
1332 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1333 _GL_ARG_NONNULL ((1, 2)));
1335 _GL_FUNCDECL_RPL (vfprintf
, int,
1337 const char *restrict format
, va_list args
)
1338 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 0)
1339 _GL_ARG_NONNULL ((1, 2)));
1341 _GL_CXXALIAS_RPL (vfprintf
, int,
1343 const char *restrict format
, va_list args
));
1345 /* Need to cast, because on Solaris, the third parameter is
1347 and GCC's fixincludes did not change this to __gnuc_va_list. */
1348 _GL_CXXALIAS_SYS_CAST (vfprintf
, int,
1350 const char *restrict format
, va_list args
));
1353 _GL_CXXALIASWARN (vfprintf
);
1356 #if !@GNULIB_VFPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1357 # if !GNULIB_overrides_vfprintf
1360 /* Assume vfprintf is always declared. */
1361 _GL_WARN_ON_USE (vfprintf
, "vfprintf is not always POSIX compliant - "
1362 "use gnulib module vfprintf-posix for portable "
1363 "POSIX compliance");
1366 #if @GNULIB_VFSCANF@
1367 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1368 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1370 # define vfscanf rpl_vfscanf
1372 _GL_FUNCDECL_RPL (vfscanf
, int,
1373 (FILE *restrict stream
,
1374 const char *restrict format
, va_list args
)
1375 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 0)
1376 _GL_ARG_NONNULL ((1, 2)));
1377 _GL_CXXALIAS_RPL (vfscanf
, int,
1378 (FILE *restrict stream
,
1379 const char *restrict format
, va_list args
));
1381 _GL_CXXALIAS_SYS (vfscanf
, int,
1382 (FILE *restrict stream
,
1383 const char *restrict format
, va_list args
));
1385 _GL_CXXALIASWARN (vfscanf
);
1388 #if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VPRINTF@
1389 # if (@GNULIB_VPRINTF_POSIX@ && @REPLACE_VPRINTF@) \
1390 || (@GNULIB_VPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1391 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1392 # define vprintf rpl_vprintf
1394 # define GNULIB_overrides_vprintf 1
1395 # if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
1396 _GL_FUNCDECL_RPL (vprintf
, int, (const char *restrict format
, va_list args
)
1397 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 0)
1398 _GL_ARG_NONNULL ((1)));
1400 _GL_FUNCDECL_RPL (vprintf
, int, (const char *restrict format
, va_list args
)
1401 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 0)
1402 _GL_ARG_NONNULL ((1)));
1404 _GL_CXXALIAS_RPL (vprintf
, int, (const char *restrict format
, va_list args
));
1406 /* Need to cast, because on Solaris, the second parameter is
1408 and GCC's fixincludes did not change this to __gnuc_va_list. */
1409 _GL_CXXALIAS_SYS_CAST (vprintf
, int,
1410 (const char *restrict format
, va_list args
));
1413 _GL_CXXALIASWARN (vprintf
);
1416 #if !@GNULIB_VPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1417 # if !GNULIB_overrides_vprintf
1420 /* Assume vprintf is always declared. */
1421 _GL_WARN_ON_USE (vprintf
, "vprintf is not always POSIX compliant - "
1422 "use gnulib module vprintf-posix for portable "
1423 "POSIX compliance");
1427 # if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1428 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1430 # define vscanf rpl_vscanf
1432 _GL_FUNCDECL_RPL (vscanf
, int, (const char *restrict format
, va_list args
)
1433 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 0)
1434 _GL_ARG_NONNULL ((1)));
1435 _GL_CXXALIAS_RPL (vscanf
, int, (const char *restrict format
, va_list args
));
1437 _GL_CXXALIAS_SYS (vscanf
, int, (const char *restrict format
, va_list args
));
1439 _GL_CXXALIASWARN (vscanf
);
1442 #if @GNULIB_VSNPRINTF@
1443 # if @REPLACE_VSNPRINTF@
1444 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1445 # define vsnprintf rpl_vsnprintf
1447 _GL_FUNCDECL_RPL (vsnprintf
, int,
1448 (char *restrict str
, size_t size
,
1449 const char *restrict format
, va_list args
)
1450 _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1451 _GL_ARG_NONNULL ((3)));
1452 _GL_CXXALIAS_RPL (vsnprintf
, int,
1453 (char *restrict str
, size_t size
,
1454 const char *restrict format
, va_list args
));
1456 # if !@HAVE_DECL_VSNPRINTF@
1457 _GL_FUNCDECL_SYS (vsnprintf
, int,
1458 (char *restrict str
, size_t size
,
1459 const char *restrict format
, va_list args
)
1460 _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1461 _GL_ARG_NONNULL ((3)));
1463 _GL_CXXALIAS_SYS (vsnprintf
, int,
1464 (char *restrict str
, size_t size
,
1465 const char *restrict format
, va_list args
));
1467 _GL_CXXALIASWARN (vsnprintf
);
1468 #elif defined GNULIB_POSIXCHECK
1470 # if HAVE_RAW_DECL_VSNPRINTF
1471 _GL_WARN_ON_USE (vsnprintf
, "vsnprintf is unportable - "
1472 "use gnulib module vsnprintf for portability");
1476 #if @GNULIB_VSPRINTF_POSIX@
1477 # if @REPLACE_VSPRINTF@
1478 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1479 # define vsprintf rpl_vsprintf
1481 _GL_FUNCDECL_RPL (vsprintf
, int,
1482 (char *restrict str
,
1483 const char *restrict format
, va_list args
)
1484 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1485 _GL_ARG_NONNULL ((1, 2)));
1486 _GL_CXXALIAS_RPL (vsprintf
, int,
1487 (char *restrict str
,
1488 const char *restrict format
, va_list args
));
1490 /* Need to cast, because on Solaris, the third parameter is
1492 and GCC's fixincludes did not change this to __gnuc_va_list. */
1493 _GL_CXXALIAS_SYS_CAST (vsprintf
, int,
1494 (char *restrict str
,
1495 const char *restrict format
, va_list args
));
1498 _GL_CXXALIASWARN (vsprintf
);
1500 #elif defined GNULIB_POSIXCHECK
1502 /* Assume vsprintf is always declared. */
1503 _GL_WARN_ON_USE (vsprintf
, "vsprintf is not always POSIX compliant - "
1504 "use gnulib module vsprintf-posix for portable "
1505 "POSIX compliance");
1508 #endif /* _@GUARD_PREFIX@_STDIO_H */
1509 #endif /* _@GUARD_PREFIX@_STDIO_H */