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Prepare for gnulib update
[deliverable/binutils-gdb.git] / gdb / gnulib / import / stdio.in.h
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6a29c58e
YQ		 1/* A GNU-like <stdio.h>.
2
3 Copyright (C) 2004, 2007-2012 Free Software Foundation, Inc.
4
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.
9
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.
14
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/>. */
17
18#if __GNUC__ >= 3
19@PRAGMA_SYSTEM_HEADER@
20#endif
21@PRAGMA_COLUMNS@
22
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. */
31
32#@INCLUDE_NEXT@ @NEXT_STDIO_H@
33
34#else
35/* Normal invocation convention. */
36
37#ifndef _@GUARD_PREFIX@_STDIO_H
38
39#define _GL_ALREADY_INCLUDING_STDIO_H
40
41/* The include_next requires a split double-inclusion guard. */
42#@INCLUDE_NEXT@ @NEXT_STDIO_H@
43
44#undef _GL_ALREADY_INCLUDING_STDIO_H
45
46#ifndef _@GUARD_PREFIX@_STDIO_H
47#define _@GUARD_PREFIX@_STDIO_H
48
49_GL_INLINE_HEADER_BEGIN
50#ifndef _GL_STDIO_INLINE
51# define _GL_STDIO_INLINE _GL_INLINE
52#endif
53
54/* Get va_list. Needed on many systems, including glibc 2.8. */
55#include <stdarg.h>
56
57#include <stddef.h>
58
59/* Get off_t and ssize_t. Needed on many systems, including glibc 2.8
60 and eglibc 2.11.2.
61 May also define off_t to a 64-bit type on native Windows. */
62#include <sys/types.h>
63
64/* The __attribute__ feature is available in gcc versions 2.5 and later.
65 The __-protected variants of the attributes 'format' and 'printf' are
66 accepted by gcc versions 2.6.4 (effectively 2.7) and later.
67 We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because
68 gnulib and libintl do '#define printf __printf__' when they override
69 the 'printf' function. */
70#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
71# define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
72#else
73# define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
74#endif
75
76/* _GL_ATTRIBUTE_FORMAT_PRINTF
77 indicates to GCC that the function takes a format string and arguments,
78 where the format string directives are the ones standardized by ISO C99
79 and POSIX. */
80#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
81# define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
82 _GL_ATTRIBUTE_FORMAT ((__gnu_printf__, formatstring_parameter, first_argument))
83#else
84# define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
85 _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
86#endif
87
88/* _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_PRINTF,
89 except that it indicates to GCC that the supported format string directives
90 are the ones of the system printf(), rather than the ones standardized by
91 ISO C99 and POSIX. */
92#define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \
93 _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
94
95/* _GL_ATTRIBUTE_FORMAT_SCANF
96 indicates to GCC that the function takes a format string and arguments,
97 where the format string directives are the ones standardized by ISO C99
98 and POSIX. */
99#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
100# define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
101 _GL_ATTRIBUTE_FORMAT ((__gnu_scanf__, formatstring_parameter, first_argument))
102#else
103# define _GL_ATTRIBUTE_FORMAT_SCANF(formatstring_parameter, first_argument) \
104 _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
105#endif
106
107/* _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_SCANF,
108 except that it indicates to GCC that the supported format string directives
109 are the ones of the system scanf(), rather than the ones standardized by
110 ISO C99 and POSIX. */
111#define _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM(formatstring_parameter, first_argument) \
112 _GL_ATTRIBUTE_FORMAT ((__scanf__, formatstring_parameter, first_argument))
113
114/* Solaris 10 declares renameat in <unistd.h>, not in <stdio.h>. */
115/* But in any case avoid namespace pollution on glibc systems. */
116#if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && defined __sun \
117 && ! defined __GLIBC__
118# include <unistd.h>
119#endif
120
121
122/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
123
124/* The definition of _GL_ARG_NONNULL is copied here. */
125
126/* The definition of _GL_WARN_ON_USE is copied here. */
127
128/* Macros for stringification. */
129#define _GL_STDIO_STRINGIZE(token) #token
130#define _GL_STDIO_MACROEXPAND_AND_STRINGIZE(token) _GL_STDIO_STRINGIZE(token)
131
132
133#if @GNULIB_DPRINTF@
134# if @REPLACE_DPRINTF@
135# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
136# define dprintf rpl_dprintf
137# endif
138_GL_FUNCDECL_RPL (dprintf, int, (int fd, const char *format, ...)
139 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
140 _GL_ARG_NONNULL ((2)));
141_GL_CXXALIAS_RPL (dprintf, int, (int fd, const char *format, ...));
142# else
143# if !@HAVE_DPRINTF@
144_GL_FUNCDECL_SYS (dprintf, int, (int fd, const char *format, ...)
145 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
146 _GL_ARG_NONNULL ((2)));
147# endif
148_GL_CXXALIAS_SYS (dprintf, int, (int fd, const char *format, ...));
149# endif
150_GL_CXXALIASWARN (dprintf);
151#elif defined GNULIB_POSIXCHECK
152# undef dprintf
153# if HAVE_RAW_DECL_DPRINTF
154_GL_WARN_ON_USE (dprintf, "dprintf is unportable - "
155 "use gnulib module dprintf for portability");
156# endif
157#endif
158
159#if @GNULIB_FCLOSE@
160/* Close STREAM and its underlying file descriptor. */
161# if @REPLACE_FCLOSE@
162# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
163# define fclose rpl_fclose
164# endif
165_GL_FUNCDECL_RPL (fclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
166_GL_CXXALIAS_RPL (fclose, int, (FILE *stream));
167# else
168_GL_CXXALIAS_SYS (fclose, int, (FILE *stream));
169# endif
170_GL_CXXALIASWARN (fclose);
171#elif defined GNULIB_POSIXCHECK
172# undef fclose
173/* Assume fclose is always declared. */
174_GL_WARN_ON_USE (fclose, "fclose is not always POSIX compliant - "
175 "use gnulib module fclose for portable POSIX compliance");
176#endif
177
178#if @GNULIB_FDOPEN@
179# if @REPLACE_FDOPEN@
180# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
181# undef fdopen
182# define fdopen rpl_fdopen
183# endif
184_GL_FUNCDECL_RPL (fdopen, FILE *, (int fd, const char *mode)
185 _GL_ARG_NONNULL ((2)));
186_GL_CXXALIAS_RPL (fdopen, FILE *, (int fd, const char *mode));
187# else
188_GL_CXXALIAS_SYS (fdopen, FILE *, (int fd, const char *mode));
189# endif
190_GL_CXXALIASWARN (fdopen);
191#elif defined GNULIB_POSIXCHECK
192# undef fdopen
193/* Assume fdopen is always declared. */
194_GL_WARN_ON_USE (fdopen, "fdopen on native Windows platforms is not POSIX compliant - "
195 "use gnulib module fdopen for portability");
196#endif
197
198#if @GNULIB_FFLUSH@
199/* Flush all pending data on STREAM according to POSIX rules. Both
200 output and seekable input streams are supported.
201 Note! LOSS OF DATA can occur if fflush is applied on an input stream
202 that is _not_seekable_ or on an update stream that is _not_seekable_
203 and in which the most recent operation was input. Seekability can
204 be tested with lseek(fileno(fp),0,SEEK_CUR). */
205# if @REPLACE_FFLUSH@
206# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
207# define fflush rpl_fflush
208# endif
209_GL_FUNCDECL_RPL (fflush, int, (FILE *gl_stream));
210_GL_CXXALIAS_RPL (fflush, int, (FILE *gl_stream));
211# else
212_GL_CXXALIAS_SYS (fflush, int, (FILE *gl_stream));
213# endif
214_GL_CXXALIASWARN (fflush);
215#elif defined GNULIB_POSIXCHECK
216# undef fflush
217/* Assume fflush is always declared. */
218_GL_WARN_ON_USE (fflush, "fflush is not always POSIX compliant - "
219 "use gnulib module fflush for portable POSIX compliance");
220#endif
221
222#if @GNULIB_FGETC@
223# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
224# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
225# undef fgetc
226# define fgetc rpl_fgetc
227# endif
228_GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
229_GL_CXXALIAS_RPL (fgetc, int, (FILE *stream));
230# else
231_GL_CXXALIAS_SYS (fgetc, int, (FILE *stream));
232# endif
233_GL_CXXALIASWARN (fgetc);
234#endif
235
236#if @GNULIB_FGETS@
237# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
238# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
239# undef fgets
240# define fgets rpl_fgets
241# endif
242_GL_FUNCDECL_RPL (fgets, char *, (char *s, int n, FILE *stream)
243 _GL_ARG_NONNULL ((1, 3)));
244_GL_CXXALIAS_RPL (fgets, char *, (char *s, int n, FILE *stream));
245# else
246_GL_CXXALIAS_SYS (fgets, char *, (char *s, int n, FILE *stream));
247# endif
248_GL_CXXALIASWARN (fgets);
249#endif
250
251#if @GNULIB_FOPEN@
252# if @REPLACE_FOPEN@
253# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
254# undef fopen
255# define fopen rpl_fopen
256# endif
257_GL_FUNCDECL_RPL (fopen, FILE *, (const char *filename, const char *mode)
258 _GL_ARG_NONNULL ((1, 2)));
259_GL_CXXALIAS_RPL (fopen, FILE *, (const char *filename, const char *mode));
260# else
261_GL_CXXALIAS_SYS (fopen, FILE *, (const char *filename, const char *mode));
262# endif
263_GL_CXXALIASWARN (fopen);
264#elif defined GNULIB_POSIXCHECK
265# undef fopen
266/* Assume fopen is always declared. */
267_GL_WARN_ON_USE (fopen, "fopen on native Windows platforms is not POSIX compliant - "
268 "use gnulib module fopen for portability");
269#endif
270
271#if @GNULIB_FPRINTF_POSIX@ || @GNULIB_FPRINTF@
272# if (@GNULIB_FPRINTF_POSIX@ && @REPLACE_FPRINTF@) \
273 || (@GNULIB_FPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
274# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
275# define fprintf rpl_fprintf
276# endif
277# define GNULIB_overrides_fprintf 1
278# if @GNULIB_FPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
279_GL_FUNCDECL_RPL (fprintf, int, (FILE *fp, const char *format, ...)
280 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
281 _GL_ARG_NONNULL ((1, 2)));
282# else
283_GL_FUNCDECL_RPL (fprintf, int, (FILE *fp, const char *format, ...)
284 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 3)
285 _GL_ARG_NONNULL ((1, 2)));
286# endif
287_GL_CXXALIAS_RPL (fprintf, int, (FILE *fp, const char *format, ...));
288# else
289_GL_CXXALIAS_SYS (fprintf, int, (FILE *fp, const char *format, ...));
290# endif
291_GL_CXXALIASWARN (fprintf);
292#endif
293#if !@GNULIB_FPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
294# if !GNULIB_overrides_fprintf
295# undef fprintf
296# endif
297/* Assume fprintf is always declared. */
298_GL_WARN_ON_USE (fprintf, "fprintf is not always POSIX compliant - "
299 "use gnulib module fprintf-posix for portable "
300 "POSIX compliance");
301#endif
302
303#if @GNULIB_FPURGE@
304/* Discard all pending buffered I/O data on STREAM.
305 STREAM must not be wide-character oriented.
306 When discarding pending output, the file position is set back to where it
307 was before the write calls. When discarding pending input, the file
308 position is advanced to match the end of the previously read input.
309 Return 0 if successful. Upon error, return -1 and set errno. */
310# if @REPLACE_FPURGE@
311# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
312# define fpurge rpl_fpurge
313# endif
314_GL_FUNCDECL_RPL (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
315_GL_CXXALIAS_RPL (fpurge, int, (FILE *gl_stream));
316# else
317# if !@HAVE_DECL_FPURGE@
318_GL_FUNCDECL_SYS (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
319# endif
320_GL_CXXALIAS_SYS (fpurge, int, (FILE *gl_stream));
321# endif
322_GL_CXXALIASWARN (fpurge);
323#elif defined GNULIB_POSIXCHECK
324# undef fpurge
325# if HAVE_RAW_DECL_FPURGE
326_GL_WARN_ON_USE (fpurge, "fpurge is not always present - "
327 "use gnulib module fpurge for portability");
328# endif
329#endif
330
331#if @GNULIB_FPUTC@
332# if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
333# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
334# undef fputc
335# define fputc rpl_fputc
336# endif
337_GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
338_GL_CXXALIAS_RPL (fputc, int, (int c, FILE *stream));
339# else
340_GL_CXXALIAS_SYS (fputc, int, (int c, FILE *stream));
341# endif
342_GL_CXXALIASWARN (fputc);
343#endif
344
345#if @GNULIB_FPUTS@
346# if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
347# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
348# undef fputs
349# define fputs rpl_fputs
350# endif
351_GL_FUNCDECL_RPL (fputs, int, (const char *string, FILE *stream)
352 _GL_ARG_NONNULL ((1, 2)));
353_GL_CXXALIAS_RPL (fputs, int, (const char *string, FILE *stream));
354# else
355_GL_CXXALIAS_SYS (fputs, int, (const char *string, FILE *stream));
356# endif
357_GL_CXXALIASWARN (fputs);
358#endif
359
360#if @GNULIB_FREAD@
361# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
362# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
363# undef fread
364# define fread rpl_fread
365# endif
366_GL_FUNCDECL_RPL (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream)
367 _GL_ARG_NONNULL ((4)));
368_GL_CXXALIAS_RPL (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream));
369# else
370_GL_CXXALIAS_SYS (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream));
371# endif
372_GL_CXXALIASWARN (fread);
373#endif
374
375#if @GNULIB_FREOPEN@
376# if @REPLACE_FREOPEN@
377# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
378# undef freopen
379# define freopen rpl_freopen
380# endif
381_GL_FUNCDECL_RPL (freopen, FILE *,
382 (const char *filename, const char *mode, FILE *stream)
383 _GL_ARG_NONNULL ((2, 3)));
384_GL_CXXALIAS_RPL (freopen, FILE *,
385 (const char *filename, const char *mode, FILE *stream));
386# else
387_GL_CXXALIAS_SYS (freopen, FILE *,
388 (const char *filename, const char *mode, FILE *stream));
389# endif
390_GL_CXXALIASWARN (freopen);
391#elif defined GNULIB_POSIXCHECK
392# undef freopen
393/* Assume freopen is always declared. */
394_GL_WARN_ON_USE (freopen,
395 "freopen on native Windows platforms is not POSIX compliant - "
396 "use gnulib module freopen for portability");
397#endif
398
399#if @GNULIB_FSCANF@
400# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
401# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
402# undef fscanf
403# define fscanf rpl_fscanf
404# endif
405_GL_FUNCDECL_RPL (fscanf, int, (FILE *stream, const char *format, ...)
406 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 3)
407 _GL_ARG_NONNULL ((1, 2)));
408_GL_CXXALIAS_RPL (fscanf, int, (FILE *stream, const char *format, ...));
409# else
410_GL_CXXALIAS_SYS (fscanf, int, (FILE *stream, const char *format, ...));
411# endif
412_GL_CXXALIASWARN (fscanf);
413#endif
414
415
416/* Set up the following warnings, based on which modules are in use.
417 GNU Coding Standards discourage the use of fseek, since it imposes
418 an arbitrary limitation on some 32-bit hosts. Remember that the
419 fseek module depends on the fseeko module, so we only have three
420 cases to consider:
421
422 1. The developer is not using either module. Issue a warning under
423 GNULIB_POSIXCHECK for both functions, to remind them that both
424 functions have bugs on some systems. _GL_NO_LARGE_FILES has no
425 impact on this warning.
426
427 2. The developer is using both modules. They may be unaware of the
428 arbitrary limitations of fseek, so issue a warning under
429 GNULIB_POSIXCHECK. On the other hand, they may be using both
430 modules intentionally, so the developer can define
431 _GL_NO_LARGE_FILES in the compilation units where the use of fseek
432 is safe, to silence the warning.
433
434 3. The developer is using the fseeko module, but not fseek. Gnulib
435 guarantees that fseek will still work around platform bugs in that
436 case, but we presume that the developer is aware of the pitfalls of
437 fseek and was trying to avoid it, so issue a warning even when
438 GNULIB_POSIXCHECK is undefined. Again, _GL_NO_LARGE_FILES can be
439 defined to silence the warning in particular compilation units.
440 In C++ compilations with GNULIB_NAMESPACE, in order to avoid that
441 fseek gets defined as a macro, it is recommended that the developer
442 uses the fseek module, even if he is not calling the fseek function.
443
444 Most gnulib clients that perform stream operations should fall into
445 category 3. */
446
447#if @GNULIB_FSEEK@
448# if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
449# define _GL_FSEEK_WARN /* Category 2, above. */
450# undef fseek
451# endif
452# if @REPLACE_FSEEK@
453# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
454# undef fseek
455# define fseek rpl_fseek
456# endif
457_GL_FUNCDECL_RPL (fseek, int, (FILE *fp, long offset, int whence)
458 _GL_ARG_NONNULL ((1)));
459_GL_CXXALIAS_RPL (fseek, int, (FILE *fp, long offset, int whence));
460# else
461_GL_CXXALIAS_SYS (fseek, int, (FILE *fp, long offset, int whence));
462# endif
463_GL_CXXALIASWARN (fseek);
464#endif
465
466#if @GNULIB_FSEEKO@
467# if !@GNULIB_FSEEK@ && !defined _GL_NO_LARGE_FILES
468# define _GL_FSEEK_WARN /* Category 3, above. */
469# undef fseek
470# endif
471# if @REPLACE_FSEEKO@
472/* Provide an fseeko function that is aware of a preceding fflush(), and which
473 detects pipes. */
474# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
475# undef fseeko
476# define fseeko rpl_fseeko
477# endif
478_GL_FUNCDECL_RPL (fseeko, int, (FILE *fp, off_t offset, int whence)
479 _GL_ARG_NONNULL ((1)));
480_GL_CXXALIAS_RPL (fseeko, int, (FILE *fp, off_t offset, int whence));
481# else
482# if ! @HAVE_DECL_FSEEKO@
483_GL_FUNCDECL_SYS (fseeko, int, (FILE *fp, off_t offset, int whence)
484 _GL_ARG_NONNULL ((1)));
485# endif
486_GL_CXXALIAS_SYS (fseeko, int, (FILE *fp, off_t offset, int whence));
487# endif
488_GL_CXXALIASWARN (fseeko);
489#elif defined GNULIB_POSIXCHECK
490# define _GL_FSEEK_WARN /* Category 1, above. */
491# undef fseek
492# undef fseeko
493# if HAVE_RAW_DECL_FSEEKO
494_GL_WARN_ON_USE (fseeko, "fseeko is unportable - "
495 "use gnulib module fseeko for portability");
496# endif
497#endif
498
499#ifdef _GL_FSEEK_WARN
500# undef _GL_FSEEK_WARN
501/* Here, either fseek is undefined (but C89 guarantees that it is
502 declared), or it is defined as rpl_fseek (declared above). */
503_GL_WARN_ON_USE (fseek, "fseek cannot handle files larger than 4 GB "
504 "on 32-bit platforms - "
505 "use fseeko function for handling of large files");
506#endif
507
508
509/* ftell, ftello. See the comments on fseek/fseeko. */
510
511#if @GNULIB_FTELL@
512# if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
513# define _GL_FTELL_WARN /* Category 2, above. */
514# undef ftell
515# endif
516# if @REPLACE_FTELL@
517# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
518# undef ftell
519# define ftell rpl_ftell
520# endif
521_GL_FUNCDECL_RPL (ftell, long, (FILE *fp) _GL_ARG_NONNULL ((1)));
522_GL_CXXALIAS_RPL (ftell, long, (FILE *fp));
523# else
524_GL_CXXALIAS_SYS (ftell, long, (FILE *fp));
525# endif
526_GL_CXXALIASWARN (ftell);
527#endif
528
529#if @GNULIB_FTELLO@
530# if !@GNULIB_FTELL@ && !defined _GL_NO_LARGE_FILES
531# define _GL_FTELL_WARN /* Category 3, above. */
532# undef ftell
533# endif
534# if @REPLACE_FTELLO@
535# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
536# undef ftello
537# define ftello rpl_ftello
538# endif
539_GL_FUNCDECL_RPL (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
540_GL_CXXALIAS_RPL (ftello, off_t, (FILE *fp));
541# else
542# if ! @HAVE_DECL_FTELLO@
543_GL_FUNCDECL_SYS (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
544# endif
545_GL_CXXALIAS_SYS (ftello, off_t, (FILE *fp));
546# endif
547_GL_CXXALIASWARN (ftello);
548#elif defined GNULIB_POSIXCHECK
549# define _GL_FTELL_WARN /* Category 1, above. */
550# undef ftell
551# undef ftello
552# if HAVE_RAW_DECL_FTELLO
553_GL_WARN_ON_USE (ftello, "ftello is unportable - "
554 "use gnulib module ftello for portability");
555# endif
556#endif
557
558#ifdef _GL_FTELL_WARN
559# undef _GL_FTELL_WARN
560/* Here, either ftell is undefined (but C89 guarantees that it is
561 declared), or it is defined as rpl_ftell (declared above). */
562_GL_WARN_ON_USE (ftell, "ftell cannot handle files larger than 4 GB "
563 "on 32-bit platforms - "
564 "use ftello function for handling of large files");
565#endif
566
567
568#if @GNULIB_FWRITE@
569# if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
570# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
571# undef fwrite
572# define fwrite rpl_fwrite
573# endif
574_GL_FUNCDECL_RPL (fwrite, size_t,
575 (const void *ptr, size_t s, size_t n, FILE *stream)
576 _GL_ARG_NONNULL ((1, 4)));
577_GL_CXXALIAS_RPL (fwrite, size_t,
578 (const void *ptr, size_t s, size_t n, FILE *stream));
579# else
580_GL_CXXALIAS_SYS (fwrite, size_t,
581 (const void *ptr, size_t s, size_t n, FILE *stream));
582
583/* Work around glibc bug 11959
584 <http://sources.redhat.com/bugzilla/show_bug.cgi?id=11959>,
585 which sometimes causes an unwanted diagnostic for fwrite calls.
586 This affects only function declaration attributes, so it's not
587 needed for C++. */
588# if !defined __cplusplus && 0 < __USE_FORTIFY_LEVEL
589_GL_STDIO_INLINE size_t _GL_ARG_NONNULL ((1, 4))
590rpl_fwrite (const void *ptr, size_t s, size_t n, FILE *stream)
591{
592 size_t r = fwrite (ptr, s, n, stream);
593 (void) r;
594 return r;
595}
596# undef fwrite
597# define fwrite rpl_fwrite
598# endif
599# endif
600_GL_CXXALIASWARN (fwrite);
601#endif
602
603#if @GNULIB_GETC@
604# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
605# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
606# undef getc
607# define getc rpl_fgetc
608# endif
609_GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
610_GL_CXXALIAS_RPL_1 (getc, rpl_fgetc, int, (FILE *stream));
611# else
612_GL_CXXALIAS_SYS (getc, int, (FILE *stream));
613# endif
614_GL_CXXALIASWARN (getc);
615#endif
616
617#if @GNULIB_GETCHAR@
618# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
619# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
620# undef getchar
621# define getchar rpl_getchar
622# endif
623_GL_FUNCDECL_RPL (getchar, int, (void));
624_GL_CXXALIAS_RPL (getchar, int, (void));
625# else
626_GL_CXXALIAS_SYS (getchar, int, (void));
627# endif
628_GL_CXXALIASWARN (getchar);
629#endif
630
631#if @GNULIB_GETDELIM@
632/* Read input, up to (and including) the next occurrence of DELIMITER, from
633 STREAM, store it in *LINEPTR (and NUL-terminate it).
634 *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
635 bytes of space. It is realloc'd as necessary.
636 Return the number of bytes read and stored at *LINEPTR (not including the
637 NUL terminator), or -1 on error or EOF. */
638# if @REPLACE_GETDELIM@
639# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
640# undef getdelim
641# define getdelim rpl_getdelim
642# endif
643_GL_FUNCDECL_RPL (getdelim, ssize_t,
644 (char **lineptr, size_t *linesize, int delimiter,
645 FILE *stream)
646 _GL_ARG_NONNULL ((1, 2, 4)));
647_GL_CXXALIAS_RPL (getdelim, ssize_t,
648 (char **lineptr, size_t *linesize, int delimiter,
649 FILE *stream));
650# else
651# if !@HAVE_DECL_GETDELIM@
652_GL_FUNCDECL_SYS (getdelim, ssize_t,
653 (char **lineptr, size_t *linesize, int delimiter,
654 FILE *stream)
655 _GL_ARG_NONNULL ((1, 2, 4)));
656# endif
657_GL_CXXALIAS_SYS (getdelim, ssize_t,
658 (char **lineptr, size_t *linesize, int delimiter,
659 FILE *stream));
660# endif
661_GL_CXXALIASWARN (getdelim);
662#elif defined GNULIB_POSIXCHECK
663# undef getdelim
664# if HAVE_RAW_DECL_GETDELIM
665_GL_WARN_ON_USE (getdelim, "getdelim is unportable - "
666 "use gnulib module getdelim for portability");
667# endif
668#endif
669
670#if @GNULIB_GETLINE@
671/* Read a line, up to (and including) the next newline, from STREAM, store it
672 in *LINEPTR (and NUL-terminate it).
673 *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
674 bytes of space. It is realloc'd as necessary.
675 Return the number of bytes read and stored at *LINEPTR (not including the
676 NUL terminator), or -1 on error or EOF. */
677# if @REPLACE_GETLINE@
678# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
679# undef getline
680# define getline rpl_getline
681# endif
682_GL_FUNCDECL_RPL (getline, ssize_t,
683 (char **lineptr, size_t *linesize, FILE *stream)
684 _GL_ARG_NONNULL ((1, 2, 3)));
685_GL_CXXALIAS_RPL (getline, ssize_t,
686 (char **lineptr, size_t *linesize, FILE *stream));
687# else
688# if !@HAVE_DECL_GETLINE@
689_GL_FUNCDECL_SYS (getline, ssize_t,
690 (char **lineptr, size_t *linesize, FILE *stream)
691 _GL_ARG_NONNULL ((1, 2, 3)));
692# endif
693_GL_CXXALIAS_SYS (getline, ssize_t,
694 (char **lineptr, size_t *linesize, FILE *stream));
695# endif
696# if @HAVE_DECL_GETLINE@
697_GL_CXXALIASWARN (getline);
698# endif
699#elif defined GNULIB_POSIXCHECK
700# undef getline
701# if HAVE_RAW_DECL_GETLINE
702_GL_WARN_ON_USE (getline, "getline is unportable - "
703 "use gnulib module getline for portability");
704# endif
705#endif
706
707/* It is very rare that the developer ever has full control of stdin,
708 so any use of gets warrants an unconditional warning; besides, C11
709 removed it. */
710#undef gets
711#if HAVE_RAW_DECL_GETS
712_GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
713#endif
714
715
716#if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@
717struct obstack;
718/* Grow an obstack with formatted output. Return the number of
719 bytes added to OBS. No trailing nul byte is added, and the
720 object should be closed with obstack_finish before use. Upon
721 memory allocation error, call obstack_alloc_failed_handler. Upon
722 other error, return -1. */
723# if @REPLACE_OBSTACK_PRINTF@
724# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
725# define obstack_printf rpl_obstack_printf
726# endif
727_GL_FUNCDECL_RPL (obstack_printf, int,
728 (struct obstack *obs, const char *format, ...)
729 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
730 _GL_ARG_NONNULL ((1, 2)));
731_GL_CXXALIAS_RPL (obstack_printf, int,
732 (struct obstack *obs, const char *format, ...));
733# else
734# if !@HAVE_DECL_OBSTACK_PRINTF@
735_GL_FUNCDECL_SYS (obstack_printf, int,
736 (struct obstack *obs, const char *format, ...)
737 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
738 _GL_ARG_NONNULL ((1, 2)));
739# endif
740_GL_CXXALIAS_SYS (obstack_printf, int,
741 (struct obstack *obs, const char *format, ...));
742# endif
743_GL_CXXALIASWARN (obstack_printf);
744# if @REPLACE_OBSTACK_PRINTF@
745# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
746# define obstack_vprintf rpl_obstack_vprintf
747# endif
748_GL_FUNCDECL_RPL (obstack_vprintf, int,
749 (struct obstack *obs, const char *format, va_list args)
750 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
751 _GL_ARG_NONNULL ((1, 2)));
752_GL_CXXALIAS_RPL (obstack_vprintf, int,
753 (struct obstack *obs, const char *format, va_list args));
754# else
755# if !@HAVE_DECL_OBSTACK_PRINTF@
756_GL_FUNCDECL_SYS (obstack_vprintf, int,
757 (struct obstack *obs, const char *format, va_list args)
758 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
759 _GL_ARG_NONNULL ((1, 2)));
760# endif
761_GL_CXXALIAS_SYS (obstack_vprintf, int,
762 (struct obstack *obs, const char *format, va_list args));
763# endif
764_GL_CXXALIASWARN (obstack_vprintf);
765#endif
766
767#if @GNULIB_PCLOSE@
768# if !@HAVE_PCLOSE@
769_GL_FUNCDECL_SYS (pclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
770# endif
771_GL_CXXALIAS_SYS (pclose, int, (FILE *stream));
772_GL_CXXALIASWARN (pclose);
773#elif defined GNULIB_POSIXCHECK
774# undef pclose
775# if HAVE_RAW_DECL_PCLOSE
776_GL_WARN_ON_USE (pclose, "pclose is unportable - "
777 "use gnulib module pclose for more portability");
778# endif
779#endif
780
781#if @GNULIB_PERROR@
782/* Print a message to standard error, describing the value of ERRNO,
783 (if STRING is not NULL and not empty) prefixed with STRING and ": ",
784 and terminated with a newline. */
785# if @REPLACE_PERROR@
786# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
787# define perror rpl_perror
788# endif
789_GL_FUNCDECL_RPL (perror, void, (const char *string));
790_GL_CXXALIAS_RPL (perror, void, (const char *string));
791# else
792_GL_CXXALIAS_SYS (perror, void, (const char *string));
793# endif
794_GL_CXXALIASWARN (perror);
795#elif defined GNULIB_POSIXCHECK
796# undef perror
797/* Assume perror is always declared. */
798_GL_WARN_ON_USE (perror, "perror is not always POSIX compliant - "
799 "use gnulib module perror for portability");
800#endif
801
802#if @GNULIB_POPEN@
803# if @REPLACE_POPEN@
804# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
805# undef popen
806# define popen rpl_popen
807# endif
808_GL_FUNCDECL_RPL (popen, FILE *, (const char *cmd, const char *mode)
809 _GL_ARG_NONNULL ((1, 2)));
810_GL_CXXALIAS_RPL (popen, FILE *, (const char *cmd, const char *mode));
811# else
812# if !@HAVE_POPEN@
813_GL_FUNCDECL_SYS (popen, FILE *, (const char *cmd, const char *mode)
814 _GL_ARG_NONNULL ((1, 2)));
815# endif
816_GL_CXXALIAS_SYS (popen, FILE *, (const char *cmd, const char *mode));
817# endif
818_GL_CXXALIASWARN (popen);
819#elif defined GNULIB_POSIXCHECK
820# undef popen
821# if HAVE_RAW_DECL_POPEN
822_GL_WARN_ON_USE (popen, "popen is buggy on some platforms - "
823 "use gnulib module popen or pipe for more portability");
824# endif
825#endif
826
827#if @GNULIB_PRINTF_POSIX@ || @GNULIB_PRINTF@
828# if (@GNULIB_PRINTF_POSIX@ && @REPLACE_PRINTF@) \
829 || (@GNULIB_PRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
830# if defined __GNUC__
831# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
832/* Don't break __attribute__((format(printf,M,N))). */
833# define printf __printf__
834# endif
835# if @GNULIB_PRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
836_GL_FUNCDECL_RPL_1 (__printf__, int,
837 (const char *format, ...)
838 __asm__ (@ASM_SYMBOL_PREFIX@
839 _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
840 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
841 _GL_ARG_NONNULL ((1)));
842# else
843_GL_FUNCDECL_RPL_1 (__printf__, int,
844 (const char *format, ...)
845 __asm__ (@ASM_SYMBOL_PREFIX@
846 _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
847 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 2)
848 _GL_ARG_NONNULL ((1)));
849# endif
850_GL_CXXALIAS_RPL_1 (printf, __printf__, int, (const char *format, ...));
851# else
852# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
853# define printf rpl_printf
854# endif
855_GL_FUNCDECL_RPL (printf, int,
856 (const char *format, ...)
857 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
858 _GL_ARG_NONNULL ((1)));
859_GL_CXXALIAS_RPL (printf, int, (const char *format, ...));
860# endif
861# define GNULIB_overrides_printf 1
862# else
863_GL_CXXALIAS_SYS (printf, int, (const char *format, ...));
864# endif
865_GL_CXXALIASWARN (printf);
866#endif
867#if !@GNULIB_PRINTF_POSIX@ && defined GNULIB_POSIXCHECK
868# if !GNULIB_overrides_printf
869# undef printf
870# endif
871/* Assume printf is always declared. */
872_GL_WARN_ON_USE (printf, "printf is not always POSIX compliant - "
873 "use gnulib module printf-posix for portable "
874 "POSIX compliance");
875#endif
876
877#if @GNULIB_PUTC@
878# if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
879# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
880# undef putc
881# define putc rpl_fputc
882# endif
883_GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
884_GL_CXXALIAS_RPL_1 (putc, rpl_fputc, int, (int c, FILE *stream));
885# else
886_GL_CXXALIAS_SYS (putc, int, (int c, FILE *stream));
887# endif
888_GL_CXXALIASWARN (putc);
889#endif
890
891#if @GNULIB_PUTCHAR@
892# if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
893# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
894# undef putchar
895# define putchar rpl_putchar
896# endif
897_GL_FUNCDECL_RPL (putchar, int, (int c));
898_GL_CXXALIAS_RPL (putchar, int, (int c));
899# else
900_GL_CXXALIAS_SYS (putchar, int, (int c));
901# endif
902_GL_CXXALIASWARN (putchar);
903#endif
904
905#if @GNULIB_PUTS@
906# if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
907# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
908# undef puts
909# define puts rpl_puts
910# endif
911_GL_FUNCDECL_RPL (puts, int, (const char *string) _GL_ARG_NONNULL ((1)));
912_GL_CXXALIAS_RPL (puts, int, (const char *string));
913# else
914_GL_CXXALIAS_SYS (puts, int, (const char *string));
915# endif
916_GL_CXXALIASWARN (puts);
917#endif
918
919#if @GNULIB_REMOVE@
920# if @REPLACE_REMOVE@
921# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
922# undef remove
923# define remove rpl_remove
924# endif
925_GL_FUNCDECL_RPL (remove, int, (const char *name) _GL_ARG_NONNULL ((1)));
926_GL_CXXALIAS_RPL (remove, int, (const char *name));
927# else
928_GL_CXXALIAS_SYS (remove, int, (const char *name));
929# endif
930_GL_CXXALIASWARN (remove);
931#elif defined GNULIB_POSIXCHECK
932# undef remove
933/* Assume remove is always declared. */
934_GL_WARN_ON_USE (remove, "remove cannot handle directories on some platforms - "
935 "use gnulib module remove for more portability");
936#endif
937
938#if @GNULIB_RENAME@
939# if @REPLACE_RENAME@
940# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
941# undef rename
942# define rename rpl_rename
943# endif
944_GL_FUNCDECL_RPL (rename, int,
945 (const char *old_filename, const char *new_filename)
946 _GL_ARG_NONNULL ((1, 2)));
947_GL_CXXALIAS_RPL (rename, int,
948 (const char *old_filename, const char *new_filename));
949# else
950_GL_CXXALIAS_SYS (rename, int,
951 (const char *old_filename, const char *new_filename));
952# endif
953_GL_CXXALIASWARN (rename);
954#elif defined GNULIB_POSIXCHECK
955# undef rename
956/* Assume rename is always declared. */
957_GL_WARN_ON_USE (rename, "rename is buggy on some platforms - "
958 "use gnulib module rename for more portability");
959#endif
960
961#if @GNULIB_RENAMEAT@
962# if @REPLACE_RENAMEAT@
963# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
964# undef renameat
965# define renameat rpl_renameat
966# endif
967_GL_FUNCDECL_RPL (renameat, int,
968 (int fd1, char const *file1, int fd2, char const *file2)
969 _GL_ARG_NONNULL ((2, 4)));
970_GL_CXXALIAS_RPL (renameat, int,
971 (int fd1, char const *file1, int fd2, char const *file2));
972# else
973# if !@HAVE_RENAMEAT@
974_GL_FUNCDECL_SYS (renameat, int,
975 (int fd1, char const *file1, int fd2, char const *file2)
976 _GL_ARG_NONNULL ((2, 4)));
977# endif
978_GL_CXXALIAS_SYS (renameat, int,
979 (int fd1, char const *file1, int fd2, char const *file2));
980# endif
981_GL_CXXALIASWARN (renameat);
982#elif defined GNULIB_POSIXCHECK
983# undef renameat
984# if HAVE_RAW_DECL_RENAMEAT
985_GL_WARN_ON_USE (renameat, "renameat is not portable - "
986 "use gnulib module renameat for portability");
987# endif
988#endif
989
990#if @GNULIB_SCANF@
991# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
992# if defined __GNUC__
993# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
994# undef scanf
995/* Don't break __attribute__((format(scanf,M,N))). */
996# define scanf __scanf__
997# endif
998_GL_FUNCDECL_RPL_1 (__scanf__, int,
999 (const char *format, ...)
1000 __asm__ (@ASM_SYMBOL_PREFIX@
1001 _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_scanf))
1002 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
1003 _GL_ARG_NONNULL ((1)));
1004_GL_CXXALIAS_RPL_1 (scanf, __scanf__, int, (const char *format, ...));
1005# else
1006# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1007# undef scanf
1008# define scanf rpl_scanf
1009# endif
1010_GL_FUNCDECL_RPL (scanf, int, (const char *format, ...)
1011 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
1012 _GL_ARG_NONNULL ((1)));
1013_GL_CXXALIAS_RPL (scanf, int, (const char *format, ...));
1014# endif
1015# else
1016_GL_CXXALIAS_SYS (scanf, int, (const char *format, ...));
1017# endif
1018_GL_CXXALIASWARN (scanf);
1019#endif
1020
1021#if @GNULIB_SNPRINTF@
1022# if @REPLACE_SNPRINTF@
1023# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1024# define snprintf rpl_snprintf
1025# endif
1026_GL_FUNCDECL_RPL (snprintf, int,
1027 (char *str, size_t size, const char *format, ...)
1028 _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
1029 _GL_ARG_NONNULL ((3)));
1030_GL_CXXALIAS_RPL (snprintf, int,
1031 (char *str, size_t size, const char *format, ...));
1032# else
1033# if !@HAVE_DECL_SNPRINTF@
1034_GL_FUNCDECL_SYS (snprintf, int,
1035 (char *str, size_t size, const char *format, ...)
1036 _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
1037 _GL_ARG_NONNULL ((3)));
1038# endif
1039_GL_CXXALIAS_SYS (snprintf, int,
1040 (char *str, size_t size, const char *format, ...));
1041# endif
1042_GL_CXXALIASWARN (snprintf);
1043#elif defined GNULIB_POSIXCHECK
1044# undef snprintf
1045# if HAVE_RAW_DECL_SNPRINTF
1046_GL_WARN_ON_USE (snprintf, "snprintf is unportable - "
1047 "use gnulib module snprintf for portability");
1048# endif
1049#endif
1050
1051/* Some people would argue that all sprintf uses should be warned about
1052 (for example, OpenBSD issues a link warning for it),
1053 since it can cause security holes due to buffer overruns.
1054 However, we believe that sprintf can be used safely, and is more
1055 efficient than snprintf in those safe cases; and as proof of our
1056 belief, we use sprintf in several gnulib modules. So this header
1057 intentionally avoids adding a warning to sprintf except when
1058 GNULIB_POSIXCHECK is defined. */
1059
1060#if @GNULIB_SPRINTF_POSIX@
1061# if @REPLACE_SPRINTF@
1062# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1063# define sprintf rpl_sprintf
1064# endif
1065_GL_FUNCDECL_RPL (sprintf, int, (char *str, const char *format, ...)
1066 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1067 _GL_ARG_NONNULL ((1, 2)));
1068_GL_CXXALIAS_RPL (sprintf, int, (char *str, const char *format, ...));
1069# else
1070_GL_CXXALIAS_SYS (sprintf, int, (char *str, const char *format, ...));
1071# endif
1072_GL_CXXALIASWARN (sprintf);
1073#elif defined GNULIB_POSIXCHECK
1074# undef sprintf
1075/* Assume sprintf is always declared. */
1076_GL_WARN_ON_USE (sprintf, "sprintf is not always POSIX compliant - "
1077 "use gnulib module sprintf-posix for portable "
1078 "POSIX compliance");
1079#endif
1080
1081#if @GNULIB_TMPFILE@
1082# if @REPLACE_TMPFILE@
1083# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1084# define tmpfile rpl_tmpfile
1085# endif
1086_GL_FUNCDECL_RPL (tmpfile, FILE *, (void));
1087_GL_CXXALIAS_RPL (tmpfile, FILE *, (void));
1088# else
1089_GL_CXXALIAS_SYS (tmpfile, FILE *, (void));
1090# endif
1091_GL_CXXALIASWARN (tmpfile);
1092#elif defined GNULIB_POSIXCHECK
1093# undef tmpfile
1094# if HAVE_RAW_DECL_TMPFILE
1095_GL_WARN_ON_USE (tmpfile, "tmpfile is not usable on mingw - "
1096 "use gnulib module tmpfile for portability");
1097# endif
1098#endif
1099
1100#if @GNULIB_VASPRINTF@
1101/* Write formatted output to a string dynamically allocated with malloc().
1102 If the memory allocation succeeds, store the address of the string in
1103 *RESULT and return the number of resulting bytes, excluding the trailing
1104 NUL. Upon memory allocation error, or some other error, return -1. */
1105# if @REPLACE_VASPRINTF@
1106# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1107# define asprintf rpl_asprintf
1108# endif
1109_GL_FUNCDECL_RPL (asprintf, int,
1110 (char **result, const char *format, ...)
1111 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1112 _GL_ARG_NONNULL ((1, 2)));
1113_GL_CXXALIAS_RPL (asprintf, int,
1114 (char **result, const char *format, ...));
1115# else
1116# if !@HAVE_VASPRINTF@
1117_GL_FUNCDECL_SYS (asprintf, int,
1118 (char **result, const char *format, ...)
1119 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1120 _GL_ARG_NONNULL ((1, 2)));
1121# endif
1122_GL_CXXALIAS_SYS (asprintf, int,
1123 (char **result, const char *format, ...));
1124# endif
1125_GL_CXXALIASWARN (asprintf);
1126# if @REPLACE_VASPRINTF@
1127# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1128# define vasprintf rpl_vasprintf
1129# endif
1130_GL_FUNCDECL_RPL (vasprintf, int,
1131 (char **result, const char *format, va_list args)
1132 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1133 _GL_ARG_NONNULL ((1, 2)));
1134_GL_CXXALIAS_RPL (vasprintf, int,
1135 (char **result, const char *format, va_list args));
1136# else
1137# if !@HAVE_VASPRINTF@
1138_GL_FUNCDECL_SYS (vasprintf, int,
1139 (char **result, const char *format, va_list args)
1140 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1141 _GL_ARG_NONNULL ((1, 2)));
1142# endif
1143_GL_CXXALIAS_SYS (vasprintf, int,
1144 (char **result, const char *format, va_list args));
1145# endif
1146_GL_CXXALIASWARN (vasprintf);
1147#endif
1148
1149#if @GNULIB_VDPRINTF@
1150# if @REPLACE_VDPRINTF@
1151# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1152# define vdprintf rpl_vdprintf
1153# endif
1154_GL_FUNCDECL_RPL (vdprintf, int, (int fd, const char *format, va_list args)
1155 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1156 _GL_ARG_NONNULL ((2)));
1157_GL_CXXALIAS_RPL (vdprintf, int, (int fd, const char *format, va_list args));
1158# else
1159# if !@HAVE_VDPRINTF@
1160_GL_FUNCDECL_SYS (vdprintf, int, (int fd, const char *format, va_list args)
1161 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1162 _GL_ARG_NONNULL ((2)));
1163# endif
1164/* Need to cast, because on Solaris, the third parameter will likely be
1165 __va_list args. */
1166_GL_CXXALIAS_SYS_CAST (vdprintf, int,
1167 (int fd, const char *format, va_list args));
1168# endif
1169_GL_CXXALIASWARN (vdprintf);
1170#elif defined GNULIB_POSIXCHECK
1171# undef vdprintf
1172# if HAVE_RAW_DECL_VDPRINTF
1173_GL_WARN_ON_USE (vdprintf, "vdprintf is unportable - "
1174 "use gnulib module vdprintf for portability");
1175# endif
1176#endif
1177
1178#if @GNULIB_VFPRINTF_POSIX@ || @GNULIB_VFPRINTF@
1179# if (@GNULIB_VFPRINTF_POSIX@ && @REPLACE_VFPRINTF@) \
1180 || (@GNULIB_VFPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1181# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1182# define vfprintf rpl_vfprintf
1183# endif
1184# define GNULIB_overrides_vfprintf 1
1185# if @GNULIB_VFPRINTF_POSIX@
1186_GL_FUNCDECL_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args)
1187 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1188 _GL_ARG_NONNULL ((1, 2)));
1189# else
1190_GL_FUNCDECL_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args)
1191 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 0)
1192 _GL_ARG_NONNULL ((1, 2)));
1193# endif
1194_GL_CXXALIAS_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args));
1195# else
1196/* Need to cast, because on Solaris, the third parameter is
1197 __va_list args
1198 and GCC's fixincludes did not change this to __gnuc_va_list. */
1199_GL_CXXALIAS_SYS_CAST (vfprintf, int,
1200 (FILE *fp, const char *format, va_list args));
1201# endif
1202_GL_CXXALIASWARN (vfprintf);
1203#endif
1204#if !@GNULIB_VFPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1205# if !GNULIB_overrides_vfprintf
1206# undef vfprintf
1207# endif
1208/* Assume vfprintf is always declared. */
1209_GL_WARN_ON_USE (vfprintf, "vfprintf is not always POSIX compliant - "
1210 "use gnulib module vfprintf-posix for portable "
1211 "POSIX compliance");
1212#endif
1213
1214#if @GNULIB_VFSCANF@
1215# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1216# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1217# undef vfscanf
1218# define vfscanf rpl_vfscanf
1219# endif
1220_GL_FUNCDECL_RPL (vfscanf, int,
1221 (FILE *stream, const char *format, va_list args)
1222 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 0)
1223 _GL_ARG_NONNULL ((1, 2)));
1224_GL_CXXALIAS_RPL (vfscanf, int,
1225 (FILE *stream, const char *format, va_list args));
1226# else
1227_GL_CXXALIAS_SYS (vfscanf, int,
1228 (FILE *stream, const char *format, va_list args));
1229# endif
1230_GL_CXXALIASWARN (vfscanf);
1231#endif
1232
1233#if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VPRINTF@
1234# if (@GNULIB_VPRINTF_POSIX@ && @REPLACE_VPRINTF@) \
1235 || (@GNULIB_VPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1236# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1237# define vprintf rpl_vprintf
1238# endif
1239# define GNULIB_overrides_vprintf 1
1240# if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
1241_GL_FUNCDECL_RPL (vprintf, int, (const char *format, va_list args)
1242 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 0)
1243 _GL_ARG_NONNULL ((1)));
1244# else
1245_GL_FUNCDECL_RPL (vprintf, int, (const char *format, va_list args)
1246 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 0)
1247 _GL_ARG_NONNULL ((1)));
1248# endif
1249_GL_CXXALIAS_RPL (vprintf, int, (const char *format, va_list args));
1250# else
1251/* Need to cast, because on Solaris, the second parameter is
1252 __va_list args
1253 and GCC's fixincludes did not change this to __gnuc_va_list. */
1254_GL_CXXALIAS_SYS_CAST (vprintf, int, (const char *format, va_list args));
1255# endif
1256_GL_CXXALIASWARN (vprintf);
1257#endif
1258#if !@GNULIB_VPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1259# if !GNULIB_overrides_vprintf
1260# undef vprintf
1261# endif
1262/* Assume vprintf is always declared. */
1263_GL_WARN_ON_USE (vprintf, "vprintf is not always POSIX compliant - "
1264 "use gnulib module vprintf-posix for portable "
1265 "POSIX compliance");
1266#endif
1267
1268#if @GNULIB_VSCANF@
1269# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1270# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1271# undef vscanf
1272# define vscanf rpl_vscanf
1273# endif
1274_GL_FUNCDECL_RPL (vscanf, int, (const char *format, va_list args)
1275 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 0)
1276 _GL_ARG_NONNULL ((1)));
1277_GL_CXXALIAS_RPL (vscanf, int, (const char *format, va_list args));
1278# else
1279_GL_CXXALIAS_SYS (vscanf, int, (const char *format, va_list args));
1280# endif
1281_GL_CXXALIASWARN (vscanf);
1282#endif
1283
1284#if @GNULIB_VSNPRINTF@
1285# if @REPLACE_VSNPRINTF@
1286# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1287# define vsnprintf rpl_vsnprintf
1288# endif
1289_GL_FUNCDECL_RPL (vsnprintf, int,
1290 (char *str, size_t size, const char *format, va_list args)
1291 _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1292 _GL_ARG_NONNULL ((3)));
1293_GL_CXXALIAS_RPL (vsnprintf, int,
1294 (char *str, size_t size, const char *format, va_list args));
1295# else
1296# if !@HAVE_DECL_VSNPRINTF@
1297_GL_FUNCDECL_SYS (vsnprintf, int,
1298 (char *str, size_t size, const char *format, va_list args)
1299 _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1300 _GL_ARG_NONNULL ((3)));
1301# endif
1302_GL_CXXALIAS_SYS (vsnprintf, int,
1303 (char *str, size_t size, const char *format, va_list args));
1304# endif
1305_GL_CXXALIASWARN (vsnprintf);
1306#elif defined GNULIB_POSIXCHECK
1307# undef vsnprintf
1308# if HAVE_RAW_DECL_VSNPRINTF
1309_GL_WARN_ON_USE (vsnprintf, "vsnprintf is unportable - "
1310 "use gnulib module vsnprintf for portability");
1311# endif
1312#endif
1313
1314#if @GNULIB_VSPRINTF_POSIX@
1315# if @REPLACE_VSPRINTF@
1316# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1317# define vsprintf rpl_vsprintf
1318# endif
1319_GL_FUNCDECL_RPL (vsprintf, int,
1320 (char *str, const char *format, va_list args)
1321 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1322 _GL_ARG_NONNULL ((1, 2)));
1323_GL_CXXALIAS_RPL (vsprintf, int,
1324 (char *str, const char *format, va_list args));
1325# else
1326/* Need to cast, because on Solaris, the third parameter is
1327 __va_list args
1328 and GCC's fixincludes did not change this to __gnuc_va_list. */
1329_GL_CXXALIAS_SYS_CAST (vsprintf, int,
1330 (char *str, const char *format, va_list args));
1331# endif
1332_GL_CXXALIASWARN (vsprintf);
1333#elif defined GNULIB_POSIXCHECK
1334# undef vsprintf
1335/* Assume vsprintf is always declared. */
1336_GL_WARN_ON_USE (vsprintf, "vsprintf is not always POSIX compliant - "
1337 "use gnulib module vsprintf-posix for portable "
1338 "POSIX compliance");
1339#endif
1340
1341_GL_INLINE_HEADER_END
1342
1343#endif /* _@GUARD_PREFIX@_STDIO_H */
1344#endif /* _@GUARD_PREFIX@_STDIO_H */
1345#endif
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