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Update Gnulib to the latest git version
[deliverable/binutils-gdb.git] / gnulib / import / stdio.in.h
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6a29c58e
YQ		 1/* A GNU-like <stdio.h>.
2
c0c3707f 3 Copyright (C) 2004, 2007-2019 Free Software Foundation, Inc.
6a29c58e
YQ		 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
c0c3707f 16 along with this program; if not, see <https://www.gnu.org/licenses/>. */
6a29c58e
YQ		 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
6a29c58e
YQ		 49/* Get va_list. Needed on many systems, including glibc 2.8. */
50#include <stdarg.h>
51
52#include <stddef.h>
53
54/* Get off_t and ssize_t. Needed on many systems, including glibc 2.8
55 and eglibc 2.11.2.
56 May also define off_t to a 64-bit type on native Windows. */
57#include <sys/types.h>
58
59/* The __attribute__ feature is available in gcc versions 2.5 and later.
60 The __-protected variants of the attributes 'format' and 'printf' are
61 accepted by gcc versions 2.6.4 (effectively 2.7) and later.
62 We enable _GL_ATTRIBUTE_FORMAT only if these are supported too, because
63 gnulib and libintl do '#define printf __printf__' when they override
64 the 'printf' function. */
65#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
66# define _GL_ATTRIBUTE_FORMAT(spec) __attribute__ ((__format__ spec))
67#else
68# define _GL_ATTRIBUTE_FORMAT(spec) /* empty */
69#endif
70
71/* _GL_ATTRIBUTE_FORMAT_PRINTF
72 indicates to GCC that the function takes a format string and arguments,
73 where the format string directives are the ones standardized by ISO C99
74 and POSIX. */
75#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
76# define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
77 _GL_ATTRIBUTE_FORMAT ((__gnu_printf__, formatstring_parameter, first_argument))
78#else
79# define _GL_ATTRIBUTE_FORMAT_PRINTF(formatstring_parameter, first_argument) \
80 _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
81#endif
82
83/* _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM is like _GL_ATTRIBUTE_FORMAT_PRINTF,
84 except that it indicates to GCC that the supported format string directives
85 are the ones of the system printf(), rather than the ones standardized by
86 ISO C99 and POSIX. */
4a626d0a
PA		 87#if GNULIB_PRINTF_ATTRIBUTE_FLAVOR_GNU
88# define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \
89 _GL_ATTRIBUTE_FORMAT_PRINTF (formatstring_parameter, first_argument)
90#else
91# define _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM(formatstring_parameter, first_argument) \
6a29c58e 92 _GL_ATTRIBUTE_FORMAT ((__printf__, formatstring_parameter, first_argument))
4a626d0a 93#endif
6a29c58e
YQ		 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
c0c3707f 114/* Solaris 10 and NetBSD 7.0 declare renameat in <unistd.h>, not in <stdio.h>. */
6a29c58e 115/* But in any case avoid namespace pollution on glibc systems. */
c0c3707f 116#if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && (defined __sun || defined __NetBSD__) \
6a29c58e
YQ		 117 && ! defined __GLIBC__
118# include <unistd.h>
119#endif
120
c0c3707f
CB		 121/* Android 4.3 declares renameat in <sys/stat.h>, not in <stdio.h>. */
122/* But in any case avoid namespace pollution on glibc systems. */
123#if (@GNULIB_RENAMEAT@ || defined GNULIB_POSIXCHECK) && defined __ANDROID__ \
124 && ! defined __GLIBC__
125# include <sys/stat.h>
126#endif
127
128/* MSVC declares 'perror' in <stdlib.h>, not in <stdio.h>. We must include
129 it before we #define perror rpl_perror. */
130/* But in any case avoid namespace pollution on glibc systems. */
131#if (@GNULIB_PERROR@ || defined GNULIB_POSIXCHECK) \
132 && (defined _WIN32 && ! defined __CYGWIN__) \
133 && ! defined __GLIBC__
134# include <stdlib.h>
135#endif
136
137/* MSVC declares 'remove' in <io.h>, not in <stdio.h>. We must include
138 it before we #define remove rpl_remove. */
139/* MSVC declares 'rename' in <io.h>, not in <stdio.h>. We must include
140 it before we #define rename rpl_rename. */
141/* But in any case avoid namespace pollution on glibc systems. */
142#if (@GNULIB_REMOVE@ || @GNULIB_RENAME@ || defined GNULIB_POSIXCHECK) \
143 && (defined _WIN32 && ! defined __CYGWIN__) \
144 && ! defined __GLIBC__
145# include <io.h>
146#endif
147
6a29c58e
YQ		 148
149/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
150
151/* The definition of _GL_ARG_NONNULL is copied here. */
152
153/* The definition of _GL_WARN_ON_USE is copied here. */
154
155/* Macros for stringification. */
156#define _GL_STDIO_STRINGIZE(token) #token
157#define _GL_STDIO_MACROEXPAND_AND_STRINGIZE(token) _GL_STDIO_STRINGIZE(token)
158
4a626d0a
PA		 159/* When also using extern inline, suppress the use of static inline in
160 standard headers of problematic Apple configurations, as Libc at
161 least through Libc-825.26 (2013-04-09) mishandles it; see, e.g.,
c0c3707f 162 <https://lists.gnu.org/r/bug-gnulib/2012-12/msg00023.html>.
4a626d0a
PA		 163 Perhaps Apple will fix this some day. */
164#if (defined _GL_EXTERN_INLINE_IN_USE && defined __APPLE__ \
165 && defined __GNUC__ && defined __STDC__)
166# undef putc_unlocked
167#endif
6a29c58e
YQ		 168
169#if @GNULIB_DPRINTF@
170# if @REPLACE_DPRINTF@
171# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
172# define dprintf rpl_dprintf
173# endif
174_GL_FUNCDECL_RPL (dprintf, int, (int fd, const char *format, ...)
175 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
176 _GL_ARG_NONNULL ((2)));
177_GL_CXXALIAS_RPL (dprintf, int, (int fd, const char *format, ...));
178# else
179# if !@HAVE_DPRINTF@
180_GL_FUNCDECL_SYS (dprintf, int, (int fd, const char *format, ...)
181 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
182 _GL_ARG_NONNULL ((2)));
183# endif
184_GL_CXXALIAS_SYS (dprintf, int, (int fd, const char *format, ...));
185# endif
186_GL_CXXALIASWARN (dprintf);
187#elif defined GNULIB_POSIXCHECK
188# undef dprintf
189# if HAVE_RAW_DECL_DPRINTF
190_GL_WARN_ON_USE (dprintf, "dprintf is unportable - "
191 "use gnulib module dprintf for portability");
192# endif
193#endif
194
195#if @GNULIB_FCLOSE@
196/* Close STREAM and its underlying file descriptor. */
197# if @REPLACE_FCLOSE@
198# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
199# define fclose rpl_fclose
200# endif
201_GL_FUNCDECL_RPL (fclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
202_GL_CXXALIAS_RPL (fclose, int, (FILE *stream));
203# else
204_GL_CXXALIAS_SYS (fclose, int, (FILE *stream));
205# endif
c0c3707f 206# if __GLIBC__ >= 2
6a29c58e 207_GL_CXXALIASWARN (fclose);
c0c3707f 208# endif
6a29c58e
YQ		 209#elif defined GNULIB_POSIXCHECK
210# undef fclose
211/* Assume fclose is always declared. */
212_GL_WARN_ON_USE (fclose, "fclose is not always POSIX compliant - "
213 "use gnulib module fclose for portable POSIX compliance");
214#endif
215
216#if @GNULIB_FDOPEN@
217# if @REPLACE_FDOPEN@
218# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
219# undef fdopen
220# define fdopen rpl_fdopen
221# endif
222_GL_FUNCDECL_RPL (fdopen, FILE *, (int fd, const char *mode)
223 _GL_ARG_NONNULL ((2)));
224_GL_CXXALIAS_RPL (fdopen, FILE *, (int fd, const char *mode));
225# else
226_GL_CXXALIAS_SYS (fdopen, FILE *, (int fd, const char *mode));
227# endif
228_GL_CXXALIASWARN (fdopen);
229#elif defined GNULIB_POSIXCHECK
230# undef fdopen
231/* Assume fdopen is always declared. */
232_GL_WARN_ON_USE (fdopen, "fdopen on native Windows platforms is not POSIX compliant - "
233 "use gnulib module fdopen for portability");
234#endif
235
236#if @GNULIB_FFLUSH@
237/* Flush all pending data on STREAM according to POSIX rules. Both
238 output and seekable input streams are supported.
239 Note! LOSS OF DATA can occur if fflush is applied on an input stream
240 that is _not_seekable_ or on an update stream that is _not_seekable_
241 and in which the most recent operation was input. Seekability can
242 be tested with lseek(fileno(fp),0,SEEK_CUR). */
243# if @REPLACE_FFLUSH@
244# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
245# define fflush rpl_fflush
246# endif
247_GL_FUNCDECL_RPL (fflush, int, (FILE *gl_stream));
248_GL_CXXALIAS_RPL (fflush, int, (FILE *gl_stream));
249# else
250_GL_CXXALIAS_SYS (fflush, int, (FILE *gl_stream));
251# endif
c0c3707f 252# if __GLIBC__ >= 2
6a29c58e 253_GL_CXXALIASWARN (fflush);
c0c3707f 254# endif
6a29c58e
YQ		 255#elif defined GNULIB_POSIXCHECK
256# undef fflush
257/* Assume fflush is always declared. */
258_GL_WARN_ON_USE (fflush, "fflush is not always POSIX compliant - "
259 "use gnulib module fflush for portable POSIX compliance");
260#endif
261
262#if @GNULIB_FGETC@
263# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
264# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
265# undef fgetc
266# define fgetc rpl_fgetc
267# endif
268_GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
269_GL_CXXALIAS_RPL (fgetc, int, (FILE *stream));
270# else
271_GL_CXXALIAS_SYS (fgetc, int, (FILE *stream));
272# endif
c0c3707f 273# if __GLIBC__ >= 2
6a29c58e 274_GL_CXXALIASWARN (fgetc);
c0c3707f 275# endif
6a29c58e
YQ		 276#endif
277
278#if @GNULIB_FGETS@
279# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
280# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
281# undef fgets
282# define fgets rpl_fgets
283# endif
284_GL_FUNCDECL_RPL (fgets, char *, (char *s, int n, FILE *stream)
285 _GL_ARG_NONNULL ((1, 3)));
286_GL_CXXALIAS_RPL (fgets, char *, (char *s, int n, FILE *stream));
287# else
288_GL_CXXALIAS_SYS (fgets, char *, (char *s, int n, FILE *stream));
289# endif
c0c3707f 290# if __GLIBC__ >= 2
6a29c58e 291_GL_CXXALIASWARN (fgets);
c0c3707f 292# endif
6a29c58e
YQ		 293#endif
294
295#if @GNULIB_FOPEN@
296# if @REPLACE_FOPEN@
297# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
298# undef fopen
299# define fopen rpl_fopen
300# endif
301_GL_FUNCDECL_RPL (fopen, FILE *, (const char *filename, const char *mode)
302 _GL_ARG_NONNULL ((1, 2)));
303_GL_CXXALIAS_RPL (fopen, FILE *, (const char *filename, const char *mode));
304# else
305_GL_CXXALIAS_SYS (fopen, FILE *, (const char *filename, const char *mode));
306# endif
c0c3707f 307# if __GLIBC__ >= 2
6a29c58e 308_GL_CXXALIASWARN (fopen);
c0c3707f 309# endif
6a29c58e
YQ		 310#elif defined GNULIB_POSIXCHECK
311# undef fopen
312/* Assume fopen is always declared. */
313_GL_WARN_ON_USE (fopen, "fopen on native Windows platforms is not POSIX compliant - "
314 "use gnulib module fopen for portability");
315#endif
316
317#if @GNULIB_FPRINTF_POSIX@ || @GNULIB_FPRINTF@
318# if (@GNULIB_FPRINTF_POSIX@ && @REPLACE_FPRINTF@) \
319 || (@GNULIB_FPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
320# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
321# define fprintf rpl_fprintf
322# endif
323# define GNULIB_overrides_fprintf 1
324# if @GNULIB_FPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
325_GL_FUNCDECL_RPL (fprintf, int, (FILE *fp, const char *format, ...)
326 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
327 _GL_ARG_NONNULL ((1, 2)));
328# else
329_GL_FUNCDECL_RPL (fprintf, int, (FILE *fp, const char *format, ...)
330 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 3)
331 _GL_ARG_NONNULL ((1, 2)));
332# endif
333_GL_CXXALIAS_RPL (fprintf, int, (FILE *fp, const char *format, ...));
334# else
335_GL_CXXALIAS_SYS (fprintf, int, (FILE *fp, const char *format, ...));
336# endif
c0c3707f 337# if __GLIBC__ >= 2
6a29c58e 338_GL_CXXALIASWARN (fprintf);
c0c3707f 339# endif
6a29c58e
YQ		 340#endif
341#if !@GNULIB_FPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
342# if !GNULIB_overrides_fprintf
343# undef fprintf
344# endif
345/* Assume fprintf is always declared. */
346_GL_WARN_ON_USE (fprintf, "fprintf is not always POSIX compliant - "
347 "use gnulib module fprintf-posix for portable "
348 "POSIX compliance");
349#endif
350
351#if @GNULIB_FPURGE@
352/* Discard all pending buffered I/O data on STREAM.
353 STREAM must not be wide-character oriented.
354 When discarding pending output, the file position is set back to where it
355 was before the write calls. When discarding pending input, the file
356 position is advanced to match the end of the previously read input.
357 Return 0 if successful. Upon error, return -1 and set errno. */
358# if @REPLACE_FPURGE@
359# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
360# define fpurge rpl_fpurge
361# endif
362_GL_FUNCDECL_RPL (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
363_GL_CXXALIAS_RPL (fpurge, int, (FILE *gl_stream));
364# else
365# if !@HAVE_DECL_FPURGE@
366_GL_FUNCDECL_SYS (fpurge, int, (FILE *gl_stream) _GL_ARG_NONNULL ((1)));
367# endif
368_GL_CXXALIAS_SYS (fpurge, int, (FILE *gl_stream));
369# endif
370_GL_CXXALIASWARN (fpurge);
371#elif defined GNULIB_POSIXCHECK
372# undef fpurge
373# if HAVE_RAW_DECL_FPURGE
374_GL_WARN_ON_USE (fpurge, "fpurge is not always present - "
375 "use gnulib module fpurge for portability");
376# endif
377#endif
378
379#if @GNULIB_FPUTC@
380# if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
381# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
382# undef fputc
383# define fputc rpl_fputc
384# endif
385_GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
386_GL_CXXALIAS_RPL (fputc, int, (int c, FILE *stream));
387# else
388_GL_CXXALIAS_SYS (fputc, int, (int c, FILE *stream));
389# endif
c0c3707f 390# if __GLIBC__ >= 2
6a29c58e 391_GL_CXXALIASWARN (fputc);
c0c3707f 392# endif
6a29c58e
YQ		 393#endif
394
395#if @GNULIB_FPUTS@
396# if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
397# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
398# undef fputs
399# define fputs rpl_fputs
400# endif
401_GL_FUNCDECL_RPL (fputs, int, (const char *string, FILE *stream)
402 _GL_ARG_NONNULL ((1, 2)));
403_GL_CXXALIAS_RPL (fputs, int, (const char *string, FILE *stream));
404# else
405_GL_CXXALIAS_SYS (fputs, int, (const char *string, FILE *stream));
406# endif
c0c3707f 407# if __GLIBC__ >= 2
6a29c58e 408_GL_CXXALIASWARN (fputs);
c0c3707f 409# endif
6a29c58e
YQ		 410#endif
411
412#if @GNULIB_FREAD@
413# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
414# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
415# undef fread
416# define fread rpl_fread
417# endif
418_GL_FUNCDECL_RPL (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream)
419 _GL_ARG_NONNULL ((4)));
420_GL_CXXALIAS_RPL (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream));
421# else
422_GL_CXXALIAS_SYS (fread, size_t, (void *ptr, size_t s, size_t n, FILE *stream));
423# endif
c0c3707f 424# if __GLIBC__ >= 2
6a29c58e 425_GL_CXXALIASWARN (fread);
c0c3707f 426# endif
6a29c58e
YQ		 427#endif
428
429#if @GNULIB_FREOPEN@
430# if @REPLACE_FREOPEN@
431# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
432# undef freopen
433# define freopen rpl_freopen
434# endif
435_GL_FUNCDECL_RPL (freopen, FILE *,
436 (const char *filename, const char *mode, FILE *stream)
437 _GL_ARG_NONNULL ((2, 3)));
438_GL_CXXALIAS_RPL (freopen, FILE *,
439 (const char *filename, const char *mode, FILE *stream));
440# else
441_GL_CXXALIAS_SYS (freopen, FILE *,
442 (const char *filename, const char *mode, FILE *stream));
443# endif
c0c3707f 444# if __GLIBC__ >= 2
6a29c58e 445_GL_CXXALIASWARN (freopen);
c0c3707f 446# endif
6a29c58e
YQ		 447#elif defined GNULIB_POSIXCHECK
448# undef freopen
449/* Assume freopen is always declared. */
450_GL_WARN_ON_USE (freopen,
451 "freopen on native Windows platforms is not POSIX compliant - "
452 "use gnulib module freopen for portability");
453#endif
454
455#if @GNULIB_FSCANF@
456# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
457# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
458# undef fscanf
459# define fscanf rpl_fscanf
460# endif
461_GL_FUNCDECL_RPL (fscanf, int, (FILE *stream, const char *format, ...)
462 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 3)
463 _GL_ARG_NONNULL ((1, 2)));
464_GL_CXXALIAS_RPL (fscanf, int, (FILE *stream, const char *format, ...));
465# else
466_GL_CXXALIAS_SYS (fscanf, int, (FILE *stream, const char *format, ...));
467# endif
c0c3707f 468# if __GLIBC__ >= 2
6a29c58e 469_GL_CXXALIASWARN (fscanf);
c0c3707f 470# endif
6a29c58e
YQ		 471#endif
472
473
474/* Set up the following warnings, based on which modules are in use.
475 GNU Coding Standards discourage the use of fseek, since it imposes
476 an arbitrary limitation on some 32-bit hosts. Remember that the
477 fseek module depends on the fseeko module, so we only have three
478 cases to consider:
479
480 1. The developer is not using either module. Issue a warning under
481 GNULIB_POSIXCHECK for both functions, to remind them that both
482 functions have bugs on some systems. _GL_NO_LARGE_FILES has no
483 impact on this warning.
484
485 2. The developer is using both modules. They may be unaware of the
486 arbitrary limitations of fseek, so issue a warning under
487 GNULIB_POSIXCHECK. On the other hand, they may be using both
488 modules intentionally, so the developer can define
489 _GL_NO_LARGE_FILES in the compilation units where the use of fseek
490 is safe, to silence the warning.
491
492 3. The developer is using the fseeko module, but not fseek. Gnulib
493 guarantees that fseek will still work around platform bugs in that
494 case, but we presume that the developer is aware of the pitfalls of
495 fseek and was trying to avoid it, so issue a warning even when
496 GNULIB_POSIXCHECK is undefined. Again, _GL_NO_LARGE_FILES can be
497 defined to silence the warning in particular compilation units.
498 In C++ compilations with GNULIB_NAMESPACE, in order to avoid that
499 fseek gets defined as a macro, it is recommended that the developer
500 uses the fseek module, even if he is not calling the fseek function.
501
502 Most gnulib clients that perform stream operations should fall into
503 category 3. */
504
505#if @GNULIB_FSEEK@
506# if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
507# define _GL_FSEEK_WARN /* Category 2, above. */
508# undef fseek
509# endif
510# if @REPLACE_FSEEK@
511# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
512# undef fseek
513# define fseek rpl_fseek
514# endif
515_GL_FUNCDECL_RPL (fseek, int, (FILE *fp, long offset, int whence)
516 _GL_ARG_NONNULL ((1)));
517_GL_CXXALIAS_RPL (fseek, int, (FILE *fp, long offset, int whence));
518# else
519_GL_CXXALIAS_SYS (fseek, int, (FILE *fp, long offset, int whence));
520# endif
c0c3707f 521# if __GLIBC__ >= 2
6a29c58e 522_GL_CXXALIASWARN (fseek);
c0c3707f 523# endif
6a29c58e
YQ		 524#endif
525
526#if @GNULIB_FSEEKO@
527# if !@GNULIB_FSEEK@ && !defined _GL_NO_LARGE_FILES
528# define _GL_FSEEK_WARN /* Category 3, above. */
529# undef fseek
530# endif
531# if @REPLACE_FSEEKO@
532/* Provide an fseeko function that is aware of a preceding fflush(), and which
533 detects pipes. */
534# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
535# undef fseeko
536# define fseeko rpl_fseeko
537# endif
538_GL_FUNCDECL_RPL (fseeko, int, (FILE *fp, off_t offset, int whence)
539 _GL_ARG_NONNULL ((1)));
540_GL_CXXALIAS_RPL (fseeko, int, (FILE *fp, off_t offset, int whence));
541# else
542# if ! @HAVE_DECL_FSEEKO@
543_GL_FUNCDECL_SYS (fseeko, int, (FILE *fp, off_t offset, int whence)
544 _GL_ARG_NONNULL ((1)));
545# endif
546_GL_CXXALIAS_SYS (fseeko, int, (FILE *fp, off_t offset, int whence));
547# endif
548_GL_CXXALIASWARN (fseeko);
549#elif defined GNULIB_POSIXCHECK
550# define _GL_FSEEK_WARN /* Category 1, above. */
551# undef fseek
552# undef fseeko
553# if HAVE_RAW_DECL_FSEEKO
554_GL_WARN_ON_USE (fseeko, "fseeko is unportable - "
555 "use gnulib module fseeko for portability");
556# endif
557#endif
558
559#ifdef _GL_FSEEK_WARN
560# undef _GL_FSEEK_WARN
561/* Here, either fseek is undefined (but C89 guarantees that it is
562 declared), or it is defined as rpl_fseek (declared above). */
563_GL_WARN_ON_USE (fseek, "fseek cannot handle files larger than 4 GB "
564 "on 32-bit platforms - "
565 "use fseeko function for handling of large files");
566#endif
567
568
569/* ftell, ftello. See the comments on fseek/fseeko. */
570
571#if @GNULIB_FTELL@
572# if defined GNULIB_POSIXCHECK && !defined _GL_NO_LARGE_FILES
573# define _GL_FTELL_WARN /* Category 2, above. */
574# undef ftell
575# endif
576# if @REPLACE_FTELL@
577# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
578# undef ftell
579# define ftell rpl_ftell
580# endif
581_GL_FUNCDECL_RPL (ftell, long, (FILE *fp) _GL_ARG_NONNULL ((1)));
582_GL_CXXALIAS_RPL (ftell, long, (FILE *fp));
583# else
584_GL_CXXALIAS_SYS (ftell, long, (FILE *fp));
585# endif
c0c3707f 586# if __GLIBC__ >= 2
6a29c58e 587_GL_CXXALIASWARN (ftell);
c0c3707f 588# endif
6a29c58e
YQ		 589#endif
590
591#if @GNULIB_FTELLO@
592# if !@GNULIB_FTELL@ && !defined _GL_NO_LARGE_FILES
593# define _GL_FTELL_WARN /* Category 3, above. */
594# undef ftell
595# endif
596# if @REPLACE_FTELLO@
597# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
598# undef ftello
599# define ftello rpl_ftello
600# endif
601_GL_FUNCDECL_RPL (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
602_GL_CXXALIAS_RPL (ftello, off_t, (FILE *fp));
603# else
604# if ! @HAVE_DECL_FTELLO@
605_GL_FUNCDECL_SYS (ftello, off_t, (FILE *fp) _GL_ARG_NONNULL ((1)));
606# endif
607_GL_CXXALIAS_SYS (ftello, off_t, (FILE *fp));
608# endif
609_GL_CXXALIASWARN (ftello);
610#elif defined GNULIB_POSIXCHECK
611# define _GL_FTELL_WARN /* Category 1, above. */
612# undef ftell
613# undef ftello
614# if HAVE_RAW_DECL_FTELLO
615_GL_WARN_ON_USE (ftello, "ftello is unportable - "
616 "use gnulib module ftello for portability");
617# endif
618#endif
619
620#ifdef _GL_FTELL_WARN
621# undef _GL_FTELL_WARN
622/* Here, either ftell is undefined (but C89 guarantees that it is
623 declared), or it is defined as rpl_ftell (declared above). */
624_GL_WARN_ON_USE (ftell, "ftell cannot handle files larger than 4 GB "
625 "on 32-bit platforms - "
626 "use ftello function for handling of large files");
627#endif
628
629
630#if @GNULIB_FWRITE@
631# if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
632# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
633# undef fwrite
634# define fwrite rpl_fwrite
635# endif
636_GL_FUNCDECL_RPL (fwrite, size_t,
637 (const void *ptr, size_t s, size_t n, FILE *stream)
638 _GL_ARG_NONNULL ((1, 4)));
639_GL_CXXALIAS_RPL (fwrite, size_t,
640 (const void *ptr, size_t s, size_t n, FILE *stream));
641# else
642_GL_CXXALIAS_SYS (fwrite, size_t,
643 (const void *ptr, size_t s, size_t n, FILE *stream));
644
4a626d0a 645/* Work around bug 11959 when fortifying glibc 2.4 through 2.15
c0c3707f 646 <https://sourceware.org/bugzilla/show_bug.cgi?id=11959>,
6a29c58e 647 which sometimes causes an unwanted diagnostic for fwrite calls.
4a626d0a
PA		 648 This affects only function declaration attributes under certain
649 versions of gcc and clang, and is not needed for C++. */
650# if (0 < __USE_FORTIFY_LEVEL \
651 && __GLIBC__ == 2 && 4 <= __GLIBC_MINOR__ && __GLIBC_MINOR__ <= 15 \
652 && 3 < __GNUC__ + (4 <= __GNUC_MINOR__) \
653 && !defined __cplusplus)
6a29c58e 654# undef fwrite
4a626d0a
PA		 655# undef fwrite_unlocked
656extern size_t __REDIRECT (rpl_fwrite,
657 (const void *__restrict, size_t, size_t,
658 FILE *__restrict),
659 fwrite);
660extern size_t __REDIRECT (rpl_fwrite_unlocked,
661 (const void *__restrict, size_t, size_t,
662 FILE *__restrict),
663 fwrite_unlocked);
6a29c58e 664# define fwrite rpl_fwrite
4a626d0a 665# define fwrite_unlocked rpl_fwrite_unlocked
6a29c58e
YQ		 666# endif
667# endif
c0c3707f 668# if __GLIBC__ >= 2
6a29c58e 669_GL_CXXALIASWARN (fwrite);
c0c3707f 670# endif
6a29c58e
YQ		 671#endif
672
673#if @GNULIB_GETC@
674# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
675# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
676# undef getc
677# define getc rpl_fgetc
678# endif
679_GL_FUNCDECL_RPL (fgetc, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
680_GL_CXXALIAS_RPL_1 (getc, rpl_fgetc, int, (FILE *stream));
681# else
682_GL_CXXALIAS_SYS (getc, int, (FILE *stream));
683# endif
c0c3707f 684# if __GLIBC__ >= 2
6a29c58e 685_GL_CXXALIASWARN (getc);
c0c3707f 686# endif
6a29c58e
YQ		 687#endif
688
689#if @GNULIB_GETCHAR@
690# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
691# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
692# undef getchar
693# define getchar rpl_getchar
694# endif
695_GL_FUNCDECL_RPL (getchar, int, (void));
696_GL_CXXALIAS_RPL (getchar, int, (void));
697# else
698_GL_CXXALIAS_SYS (getchar, int, (void));
699# endif
c0c3707f 700# if __GLIBC__ >= 2
6a29c58e 701_GL_CXXALIASWARN (getchar);
c0c3707f 702# endif
6a29c58e
YQ		 703#endif
704
705#if @GNULIB_GETDELIM@
706/* Read input, up to (and including) the next occurrence of DELIMITER, from
707 STREAM, store it in *LINEPTR (and NUL-terminate it).
708 *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
709 bytes of space. It is realloc'd as necessary.
710 Return the number of bytes read and stored at *LINEPTR (not including the
711 NUL terminator), or -1 on error or EOF. */
712# if @REPLACE_GETDELIM@
713# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
714# undef getdelim
715# define getdelim rpl_getdelim
716# endif
717_GL_FUNCDECL_RPL (getdelim, ssize_t,
718 (char **lineptr, size_t *linesize, int delimiter,
719 FILE *stream)
720 _GL_ARG_NONNULL ((1, 2, 4)));
721_GL_CXXALIAS_RPL (getdelim, ssize_t,
722 (char **lineptr, size_t *linesize, int delimiter,
723 FILE *stream));
724# else
725# if !@HAVE_DECL_GETDELIM@
726_GL_FUNCDECL_SYS (getdelim, ssize_t,
727 (char **lineptr, size_t *linesize, int delimiter,
728 FILE *stream)
729 _GL_ARG_NONNULL ((1, 2, 4)));
730# endif
731_GL_CXXALIAS_SYS (getdelim, ssize_t,
732 (char **lineptr, size_t *linesize, int delimiter,
733 FILE *stream));
734# endif
735_GL_CXXALIASWARN (getdelim);
736#elif defined GNULIB_POSIXCHECK
737# undef getdelim
738# if HAVE_RAW_DECL_GETDELIM
739_GL_WARN_ON_USE (getdelim, "getdelim is unportable - "
740 "use gnulib module getdelim for portability");
741# endif
742#endif
743
744#if @GNULIB_GETLINE@
745/* Read a line, up to (and including) the next newline, from STREAM, store it
746 in *LINEPTR (and NUL-terminate it).
747 *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
748 bytes of space. It is realloc'd as necessary.
749 Return the number of bytes read and stored at *LINEPTR (not including the
750 NUL terminator), or -1 on error or EOF. */
751# if @REPLACE_GETLINE@
752# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
753# undef getline
754# define getline rpl_getline
755# endif
756_GL_FUNCDECL_RPL (getline, ssize_t,
757 (char **lineptr, size_t *linesize, FILE *stream)
758 _GL_ARG_NONNULL ((1, 2, 3)));
759_GL_CXXALIAS_RPL (getline, ssize_t,
760 (char **lineptr, size_t *linesize, FILE *stream));
761# else
762# if !@HAVE_DECL_GETLINE@
763_GL_FUNCDECL_SYS (getline, ssize_t,
764 (char **lineptr, size_t *linesize, FILE *stream)
765 _GL_ARG_NONNULL ((1, 2, 3)));
766# endif
767_GL_CXXALIAS_SYS (getline, ssize_t,
768 (char **lineptr, size_t *linesize, FILE *stream));
769# endif
770# if @HAVE_DECL_GETLINE@
771_GL_CXXALIASWARN (getline);
772# endif
773#elif defined GNULIB_POSIXCHECK
774# undef getline
775# if HAVE_RAW_DECL_GETLINE
776_GL_WARN_ON_USE (getline, "getline is unportable - "
777 "use gnulib module getline for portability");
778# endif
779#endif
780
781/* It is very rare that the developer ever has full control of stdin,
782 so any use of gets warrants an unconditional warning; besides, C11
783 removed it. */
784#undef gets
4a626d0a 785#if HAVE_RAW_DECL_GETS && !defined __cplusplus
6a29c58e
YQ		 786_GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
787#endif
788
6a29c58e
YQ		 789#if @GNULIB_OBSTACK_PRINTF@ || @GNULIB_OBSTACK_PRINTF_POSIX@
790struct obstack;
791/* Grow an obstack with formatted output. Return the number of
792 bytes added to OBS. No trailing nul byte is added, and the
793 object should be closed with obstack_finish before use. Upon
794 memory allocation error, call obstack_alloc_failed_handler. Upon
795 other error, return -1. */
796# if @REPLACE_OBSTACK_PRINTF@
797# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
798# define obstack_printf rpl_obstack_printf
799# endif
800_GL_FUNCDECL_RPL (obstack_printf, int,
801 (struct obstack *obs, const char *format, ...)
802 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
803 _GL_ARG_NONNULL ((1, 2)));
804_GL_CXXALIAS_RPL (obstack_printf, int,
805 (struct obstack *obs, const char *format, ...));
806# else
807# if !@HAVE_DECL_OBSTACK_PRINTF@
808_GL_FUNCDECL_SYS (obstack_printf, int,
809 (struct obstack *obs, const char *format, ...)
810 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
811 _GL_ARG_NONNULL ((1, 2)));
812# endif
813_GL_CXXALIAS_SYS (obstack_printf, int,
814 (struct obstack *obs, const char *format, ...));
815# endif
816_GL_CXXALIASWARN (obstack_printf);
817# if @REPLACE_OBSTACK_PRINTF@
818# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
819# define obstack_vprintf rpl_obstack_vprintf
820# endif
821_GL_FUNCDECL_RPL (obstack_vprintf, int,
822 (struct obstack *obs, const char *format, va_list args)
823 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
824 _GL_ARG_NONNULL ((1, 2)));
825_GL_CXXALIAS_RPL (obstack_vprintf, int,
826 (struct obstack *obs, const char *format, va_list args));
827# else
828# if !@HAVE_DECL_OBSTACK_PRINTF@
829_GL_FUNCDECL_SYS (obstack_vprintf, int,
830 (struct obstack *obs, const char *format, va_list args)
831 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
832 _GL_ARG_NONNULL ((1, 2)));
833# endif
834_GL_CXXALIAS_SYS (obstack_vprintf, int,
835 (struct obstack *obs, const char *format, va_list args));
836# endif
837_GL_CXXALIASWARN (obstack_vprintf);
838#endif
839
840#if @GNULIB_PCLOSE@
841# if !@HAVE_PCLOSE@
842_GL_FUNCDECL_SYS (pclose, int, (FILE *stream) _GL_ARG_NONNULL ((1)));
843# endif
844_GL_CXXALIAS_SYS (pclose, int, (FILE *stream));
845_GL_CXXALIASWARN (pclose);
846#elif defined GNULIB_POSIXCHECK
847# undef pclose
848# if HAVE_RAW_DECL_PCLOSE
849_GL_WARN_ON_USE (pclose, "pclose is unportable - "
850 "use gnulib module pclose for more portability");
851# endif
852#endif
853
854#if @GNULIB_PERROR@
855/* Print a message to standard error, describing the value of ERRNO,
856 (if STRING is not NULL and not empty) prefixed with STRING and ": ",
857 and terminated with a newline. */
858# if @REPLACE_PERROR@
859# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
860# define perror rpl_perror
861# endif
862_GL_FUNCDECL_RPL (perror, void, (const char *string));
863_GL_CXXALIAS_RPL (perror, void, (const char *string));
864# else
865_GL_CXXALIAS_SYS (perror, void, (const char *string));
866# endif
c0c3707f 867# if __GLIBC__ >= 2
6a29c58e 868_GL_CXXALIASWARN (perror);
c0c3707f 869# endif
6a29c58e
YQ		 870#elif defined GNULIB_POSIXCHECK
871# undef perror
872/* Assume perror is always declared. */
873_GL_WARN_ON_USE (perror, "perror is not always POSIX compliant - "
874 "use gnulib module perror for portability");
875#endif
876
877#if @GNULIB_POPEN@
878# if @REPLACE_POPEN@
879# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
880# undef popen
881# define popen rpl_popen
882# endif
883_GL_FUNCDECL_RPL (popen, FILE *, (const char *cmd, const char *mode)
884 _GL_ARG_NONNULL ((1, 2)));
885_GL_CXXALIAS_RPL (popen, FILE *, (const char *cmd, const char *mode));
886# else
887# if !@HAVE_POPEN@
888_GL_FUNCDECL_SYS (popen, FILE *, (const char *cmd, const char *mode)
889 _GL_ARG_NONNULL ((1, 2)));
890# endif
891_GL_CXXALIAS_SYS (popen, FILE *, (const char *cmd, const char *mode));
892# endif
893_GL_CXXALIASWARN (popen);
894#elif defined GNULIB_POSIXCHECK
895# undef popen
896# if HAVE_RAW_DECL_POPEN
897_GL_WARN_ON_USE (popen, "popen is buggy on some platforms - "
898 "use gnulib module popen or pipe for more portability");
899# endif
900#endif
901
902#if @GNULIB_PRINTF_POSIX@ || @GNULIB_PRINTF@
903# if (@GNULIB_PRINTF_POSIX@ && @REPLACE_PRINTF@) \
904 || (@GNULIB_PRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
905# if defined __GNUC__
906# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
907/* Don't break __attribute__((format(printf,M,N))). */
908# define printf __printf__
909# endif
910# if @GNULIB_PRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
911_GL_FUNCDECL_RPL_1 (__printf__, int,
912 (const char *format, ...)
913 __asm__ (@ASM_SYMBOL_PREFIX@
914 _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
915 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
916 _GL_ARG_NONNULL ((1)));
917# else
918_GL_FUNCDECL_RPL_1 (__printf__, int,
919 (const char *format, ...)
920 __asm__ (@ASM_SYMBOL_PREFIX@
921 _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_printf))
922 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 2)
923 _GL_ARG_NONNULL ((1)));
924# endif
925_GL_CXXALIAS_RPL_1 (printf, __printf__, int, (const char *format, ...));
926# else
927# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
928# define printf rpl_printf
929# endif
930_GL_FUNCDECL_RPL (printf, int,
931 (const char *format, ...)
932 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 2)
933 _GL_ARG_NONNULL ((1)));
934_GL_CXXALIAS_RPL (printf, int, (const char *format, ...));
935# endif
936# define GNULIB_overrides_printf 1
937# else
938_GL_CXXALIAS_SYS (printf, int, (const char *format, ...));
939# endif
c0c3707f 940# if __GLIBC__ >= 2
6a29c58e 941_GL_CXXALIASWARN (printf);
c0c3707f 942# endif
6a29c58e
YQ		 943#endif
944#if !@GNULIB_PRINTF_POSIX@ && defined GNULIB_POSIXCHECK
945# if !GNULIB_overrides_printf
946# undef printf
947# endif
948/* Assume printf is always declared. */
949_GL_WARN_ON_USE (printf, "printf is not always POSIX compliant - "
950 "use gnulib module printf-posix for portable "
951 "POSIX compliance");
952#endif
953
954#if @GNULIB_PUTC@
955# if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
956# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
957# undef putc
958# define putc rpl_fputc
959# endif
960_GL_FUNCDECL_RPL (fputc, int, (int c, FILE *stream) _GL_ARG_NONNULL ((2)));
961_GL_CXXALIAS_RPL_1 (putc, rpl_fputc, int, (int c, FILE *stream));
962# else
963_GL_CXXALIAS_SYS (putc, int, (int c, FILE *stream));
964# endif
c0c3707f 965# if __GLIBC__ >= 2
6a29c58e 966_GL_CXXALIASWARN (putc);
c0c3707f 967# endif
6a29c58e
YQ		 968#endif
969
970#if @GNULIB_PUTCHAR@
971# if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
972# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
973# undef putchar
974# define putchar rpl_putchar
975# endif
976_GL_FUNCDECL_RPL (putchar, int, (int c));
977_GL_CXXALIAS_RPL (putchar, int, (int c));
978# else
979_GL_CXXALIAS_SYS (putchar, int, (int c));
980# endif
c0c3707f 981# if __GLIBC__ >= 2
6a29c58e 982_GL_CXXALIASWARN (putchar);
c0c3707f 983# endif
6a29c58e
YQ		 984#endif
985
986#if @GNULIB_PUTS@
987# if @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@)
988# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
989# undef puts
990# define puts rpl_puts
991# endif
992_GL_FUNCDECL_RPL (puts, int, (const char *string) _GL_ARG_NONNULL ((1)));
993_GL_CXXALIAS_RPL (puts, int, (const char *string));
994# else
995_GL_CXXALIAS_SYS (puts, int, (const char *string));
996# endif
c0c3707f 997# if __GLIBC__ >= 2
6a29c58e 998_GL_CXXALIASWARN (puts);
c0c3707f 999# endif
6a29c58e
YQ		 1000#endif
1001
1002#if @GNULIB_REMOVE@
1003# if @REPLACE_REMOVE@
1004# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1005# undef remove
1006# define remove rpl_remove
1007# endif
1008_GL_FUNCDECL_RPL (remove, int, (const char *name) _GL_ARG_NONNULL ((1)));
1009_GL_CXXALIAS_RPL (remove, int, (const char *name));
1010# else
1011_GL_CXXALIAS_SYS (remove, int, (const char *name));
1012# endif
c0c3707f 1013# if __GLIBC__ >= 2
6a29c58e 1014_GL_CXXALIASWARN (remove);
c0c3707f 1015# endif
6a29c58e
YQ		 1016#elif defined GNULIB_POSIXCHECK
1017# undef remove
1018/* Assume remove is always declared. */
1019_GL_WARN_ON_USE (remove, "remove cannot handle directories on some platforms - "
1020 "use gnulib module remove for more portability");
1021#endif
1022
1023#if @GNULIB_RENAME@
1024# if @REPLACE_RENAME@
1025# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1026# undef rename
1027# define rename rpl_rename
1028# endif
1029_GL_FUNCDECL_RPL (rename, int,
1030 (const char *old_filename, const char *new_filename)
1031 _GL_ARG_NONNULL ((1, 2)));
1032_GL_CXXALIAS_RPL (rename, int,
1033 (const char *old_filename, const char *new_filename));
1034# else
1035_GL_CXXALIAS_SYS (rename, int,
1036 (const char *old_filename, const char *new_filename));
1037# endif
c0c3707f 1038# if __GLIBC__ >= 2
6a29c58e 1039_GL_CXXALIASWARN (rename);
c0c3707f 1040# endif
6a29c58e
YQ		 1041#elif defined GNULIB_POSIXCHECK
1042# undef rename
1043/* Assume rename is always declared. */
1044_GL_WARN_ON_USE (rename, "rename is buggy on some platforms - "
1045 "use gnulib module rename for more portability");
1046#endif
1047
1048#if @GNULIB_RENAMEAT@
1049# if @REPLACE_RENAMEAT@
1050# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1051# undef renameat
1052# define renameat rpl_renameat
1053# endif
1054_GL_FUNCDECL_RPL (renameat, int,
1055 (int fd1, char const *file1, int fd2, char const *file2)
1056 _GL_ARG_NONNULL ((2, 4)));
1057_GL_CXXALIAS_RPL (renameat, int,
1058 (int fd1, char const *file1, int fd2, char const *file2));
1059# else
1060# if !@HAVE_RENAMEAT@
1061_GL_FUNCDECL_SYS (renameat, int,
1062 (int fd1, char const *file1, int fd2, char const *file2)
1063 _GL_ARG_NONNULL ((2, 4)));
1064# endif
1065_GL_CXXALIAS_SYS (renameat, int,
1066 (int fd1, char const *file1, int fd2, char const *file2));
1067# endif
1068_GL_CXXALIASWARN (renameat);
1069#elif defined GNULIB_POSIXCHECK
1070# undef renameat
1071# if HAVE_RAW_DECL_RENAMEAT
1072_GL_WARN_ON_USE (renameat, "renameat is not portable - "
1073 "use gnulib module renameat for portability");
1074# endif
1075#endif
1076
1077#if @GNULIB_SCANF@
1078# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1079# if defined __GNUC__
1080# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1081# undef scanf
1082/* Don't break __attribute__((format(scanf,M,N))). */
1083# define scanf __scanf__
1084# endif
1085_GL_FUNCDECL_RPL_1 (__scanf__, int,
1086 (const char *format, ...)
1087 __asm__ (@ASM_SYMBOL_PREFIX@
1088 _GL_STDIO_MACROEXPAND_AND_STRINGIZE(rpl_scanf))
1089 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
1090 _GL_ARG_NONNULL ((1)));
1091_GL_CXXALIAS_RPL_1 (scanf, __scanf__, int, (const char *format, ...));
1092# else
1093# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1094# undef scanf
1095# define scanf rpl_scanf
1096# endif
1097_GL_FUNCDECL_RPL (scanf, int, (const char *format, ...)
1098 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 2)
1099 _GL_ARG_NONNULL ((1)));
1100_GL_CXXALIAS_RPL (scanf, int, (const char *format, ...));
1101# endif
1102# else
1103_GL_CXXALIAS_SYS (scanf, int, (const char *format, ...));
1104# endif
c0c3707f 1105# if __GLIBC__ >= 2
6a29c58e 1106_GL_CXXALIASWARN (scanf);
c0c3707f 1107# endif
6a29c58e
YQ		 1108#endif
1109
1110#if @GNULIB_SNPRINTF@
1111# if @REPLACE_SNPRINTF@
1112# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1113# define snprintf rpl_snprintf
1114# endif
1115_GL_FUNCDECL_RPL (snprintf, int,
1116 (char *str, size_t size, const char *format, ...)
1117 _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
1118 _GL_ARG_NONNULL ((3)));
1119_GL_CXXALIAS_RPL (snprintf, int,
1120 (char *str, size_t size, const char *format, ...));
1121# else
1122# if !@HAVE_DECL_SNPRINTF@
1123_GL_FUNCDECL_SYS (snprintf, int,
1124 (char *str, size_t size, const char *format, ...)
1125 _GL_ATTRIBUTE_FORMAT_PRINTF (3, 4)
1126 _GL_ARG_NONNULL ((3)));
1127# endif
1128_GL_CXXALIAS_SYS (snprintf, int,
1129 (char *str, size_t size, const char *format, ...));
1130# endif
1131_GL_CXXALIASWARN (snprintf);
1132#elif defined GNULIB_POSIXCHECK
1133# undef snprintf
1134# if HAVE_RAW_DECL_SNPRINTF
1135_GL_WARN_ON_USE (snprintf, "snprintf is unportable - "
1136 "use gnulib module snprintf for portability");
1137# endif
1138#endif
1139
1140/* Some people would argue that all sprintf uses should be warned about
1141 (for example, OpenBSD issues a link warning for it),
1142 since it can cause security holes due to buffer overruns.
1143 However, we believe that sprintf can be used safely, and is more
1144 efficient than snprintf in those safe cases; and as proof of our
1145 belief, we use sprintf in several gnulib modules. So this header
1146 intentionally avoids adding a warning to sprintf except when
1147 GNULIB_POSIXCHECK is defined. */
1148
1149#if @GNULIB_SPRINTF_POSIX@
1150# if @REPLACE_SPRINTF@
1151# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1152# define sprintf rpl_sprintf
1153# endif
1154_GL_FUNCDECL_RPL (sprintf, int, (char *str, const char *format, ...)
1155 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1156 _GL_ARG_NONNULL ((1, 2)));
1157_GL_CXXALIAS_RPL (sprintf, int, (char *str, const char *format, ...));
1158# else
1159_GL_CXXALIAS_SYS (sprintf, int, (char *str, const char *format, ...));
1160# endif
c0c3707f 1161# if __GLIBC__ >= 2
6a29c58e 1162_GL_CXXALIASWARN (sprintf);
c0c3707f 1163# endif
6a29c58e
YQ		 1164#elif defined GNULIB_POSIXCHECK
1165# undef sprintf
1166/* Assume sprintf is always declared. */
1167_GL_WARN_ON_USE (sprintf, "sprintf is not always POSIX compliant - "
1168 "use gnulib module sprintf-posix for portable "
1169 "POSIX compliance");
1170#endif
1171
1172#if @GNULIB_TMPFILE@
1173# if @REPLACE_TMPFILE@
1174# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1175# define tmpfile rpl_tmpfile
1176# endif
1177_GL_FUNCDECL_RPL (tmpfile, FILE *, (void));
1178_GL_CXXALIAS_RPL (tmpfile, FILE *, (void));
1179# else
1180_GL_CXXALIAS_SYS (tmpfile, FILE *, (void));
1181# endif
c0c3707f 1182# if __GLIBC__ >= 2
6a29c58e 1183_GL_CXXALIASWARN (tmpfile);
c0c3707f 1184# endif
6a29c58e
YQ		 1185#elif defined GNULIB_POSIXCHECK
1186# undef tmpfile
1187# if HAVE_RAW_DECL_TMPFILE
1188_GL_WARN_ON_USE (tmpfile, "tmpfile is not usable on mingw - "
1189 "use gnulib module tmpfile for portability");
1190# endif
1191#endif
1192
1193#if @GNULIB_VASPRINTF@
1194/* Write formatted output to a string dynamically allocated with malloc().
1195 If the memory allocation succeeds, store the address of the string in
1196 *RESULT and return the number of resulting bytes, excluding the trailing
1197 NUL. Upon memory allocation error, or some other error, return -1. */
1198# if @REPLACE_VASPRINTF@
1199# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1200# define asprintf rpl_asprintf
1201# endif
1202_GL_FUNCDECL_RPL (asprintf, int,
1203 (char **result, const char *format, ...)
1204 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1205 _GL_ARG_NONNULL ((1, 2)));
1206_GL_CXXALIAS_RPL (asprintf, int,
1207 (char **result, const char *format, ...));
1208# else
1209# if !@HAVE_VASPRINTF@
1210_GL_FUNCDECL_SYS (asprintf, int,
1211 (char **result, const char *format, ...)
1212 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 3)
1213 _GL_ARG_NONNULL ((1, 2)));
1214# endif
1215_GL_CXXALIAS_SYS (asprintf, int,
1216 (char **result, const char *format, ...));
1217# endif
1218_GL_CXXALIASWARN (asprintf);
1219# if @REPLACE_VASPRINTF@
1220# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1221# define vasprintf rpl_vasprintf
1222# endif
1223_GL_FUNCDECL_RPL (vasprintf, int,
1224 (char **result, const char *format, va_list args)
1225 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1226 _GL_ARG_NONNULL ((1, 2)));
1227_GL_CXXALIAS_RPL (vasprintf, int,
1228 (char **result, const char *format, va_list args));
1229# else
1230# if !@HAVE_VASPRINTF@
1231_GL_FUNCDECL_SYS (vasprintf, int,
1232 (char **result, const char *format, va_list args)
1233 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1234 _GL_ARG_NONNULL ((1, 2)));
1235# endif
1236_GL_CXXALIAS_SYS (vasprintf, int,
1237 (char **result, const char *format, va_list args));
1238# endif
1239_GL_CXXALIASWARN (vasprintf);
1240#endif
1241
1242#if @GNULIB_VDPRINTF@
1243# if @REPLACE_VDPRINTF@
1244# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1245# define vdprintf rpl_vdprintf
1246# endif
1247_GL_FUNCDECL_RPL (vdprintf, int, (int fd, const char *format, va_list args)
1248 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1249 _GL_ARG_NONNULL ((2)));
1250_GL_CXXALIAS_RPL (vdprintf, int, (int fd, const char *format, va_list args));
1251# else
1252# if !@HAVE_VDPRINTF@
1253_GL_FUNCDECL_SYS (vdprintf, int, (int fd, const char *format, va_list args)
1254 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1255 _GL_ARG_NONNULL ((2)));
1256# endif
1257/* Need to cast, because on Solaris, the third parameter will likely be
1258 __va_list args. */
1259_GL_CXXALIAS_SYS_CAST (vdprintf, int,
1260 (int fd, const char *format, va_list args));
1261# endif
c0c3707f 1262# if __GLIBC__ >= 2
6a29c58e 1263_GL_CXXALIASWARN (vdprintf);
c0c3707f 1264# endif
6a29c58e
YQ		 1265#elif defined GNULIB_POSIXCHECK
1266# undef vdprintf
1267# if HAVE_RAW_DECL_VDPRINTF
1268_GL_WARN_ON_USE (vdprintf, "vdprintf is unportable - "
1269 "use gnulib module vdprintf for portability");
1270# endif
1271#endif
1272
1273#if @GNULIB_VFPRINTF_POSIX@ || @GNULIB_VFPRINTF@
1274# if (@GNULIB_VFPRINTF_POSIX@ && @REPLACE_VFPRINTF@) \
1275 || (@GNULIB_VFPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1276# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1277# define vfprintf rpl_vfprintf
1278# endif
1279# define GNULIB_overrides_vfprintf 1
1280# if @GNULIB_VFPRINTF_POSIX@
1281_GL_FUNCDECL_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args)
1282 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1283 _GL_ARG_NONNULL ((1, 2)));
1284# else
1285_GL_FUNCDECL_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args)
1286 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (2, 0)
1287 _GL_ARG_NONNULL ((1, 2)));
1288# endif
1289_GL_CXXALIAS_RPL (vfprintf, int, (FILE *fp, const char *format, va_list args));
1290# else
1291/* Need to cast, because on Solaris, the third parameter is
1292 __va_list args
1293 and GCC's fixincludes did not change this to __gnuc_va_list. */
1294_GL_CXXALIAS_SYS_CAST (vfprintf, int,
1295 (FILE *fp, const char *format, va_list args));
1296# endif
c0c3707f 1297# if __GLIBC__ >= 2
6a29c58e 1298_GL_CXXALIASWARN (vfprintf);
c0c3707f 1299# endif
6a29c58e
YQ		 1300#endif
1301#if !@GNULIB_VFPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1302# if !GNULIB_overrides_vfprintf
1303# undef vfprintf
1304# endif
1305/* Assume vfprintf is always declared. */
1306_GL_WARN_ON_USE (vfprintf, "vfprintf is not always POSIX compliant - "
1307 "use gnulib module vfprintf-posix for portable "
1308 "POSIX compliance");
1309#endif
1310
1311#if @GNULIB_VFSCANF@
1312# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1313# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1314# undef vfscanf
1315# define vfscanf rpl_vfscanf
1316# endif
1317_GL_FUNCDECL_RPL (vfscanf, int,
1318 (FILE *stream, const char *format, va_list args)
1319 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (2, 0)
1320 _GL_ARG_NONNULL ((1, 2)));
1321_GL_CXXALIAS_RPL (vfscanf, int,
1322 (FILE *stream, const char *format, va_list args));
1323# else
1324_GL_CXXALIAS_SYS (vfscanf, int,
1325 (FILE *stream, const char *format, va_list args));
1326# endif
1327_GL_CXXALIASWARN (vfscanf);
1328#endif
1329
1330#if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VPRINTF@
1331# if (@GNULIB_VPRINTF_POSIX@ && @REPLACE_VPRINTF@) \
1332 || (@GNULIB_VPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && (@GNULIB_STDIO_H_NONBLOCKING@ || @GNULIB_STDIO_H_SIGPIPE@))
1333# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1334# define vprintf rpl_vprintf
1335# endif
1336# define GNULIB_overrides_vprintf 1
1337# if @GNULIB_VPRINTF_POSIX@ || @GNULIB_VFPRINTF_POSIX@
1338_GL_FUNCDECL_RPL (vprintf, int, (const char *format, va_list args)
1339 _GL_ATTRIBUTE_FORMAT_PRINTF (1, 0)
1340 _GL_ARG_NONNULL ((1)));
1341# else
1342_GL_FUNCDECL_RPL (vprintf, int, (const char *format, va_list args)
1343 _GL_ATTRIBUTE_FORMAT_PRINTF_SYSTEM (1, 0)
1344 _GL_ARG_NONNULL ((1)));
1345# endif
1346_GL_CXXALIAS_RPL (vprintf, int, (const char *format, va_list args));
1347# else
1348/* Need to cast, because on Solaris, the second parameter is
1349 __va_list args
1350 and GCC's fixincludes did not change this to __gnuc_va_list. */
1351_GL_CXXALIAS_SYS_CAST (vprintf, int, (const char *format, va_list args));
1352# endif
c0c3707f 1353# if __GLIBC__ >= 2
6a29c58e 1354_GL_CXXALIASWARN (vprintf);
c0c3707f 1355# endif
6a29c58e
YQ		 1356#endif
1357#if !@GNULIB_VPRINTF_POSIX@ && defined GNULIB_POSIXCHECK
1358# if !GNULIB_overrides_vprintf
1359# undef vprintf
1360# endif
1361/* Assume vprintf is always declared. */
1362_GL_WARN_ON_USE (vprintf, "vprintf is not always POSIX compliant - "
1363 "use gnulib module vprintf-posix for portable "
1364 "POSIX compliance");
1365#endif
1366
1367#if @GNULIB_VSCANF@
1368# if @REPLACE_STDIO_READ_FUNCS@ && @GNULIB_STDIO_H_NONBLOCKING@
1369# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1370# undef vscanf
1371# define vscanf rpl_vscanf
1372# endif
1373_GL_FUNCDECL_RPL (vscanf, int, (const char *format, va_list args)
1374 _GL_ATTRIBUTE_FORMAT_SCANF_SYSTEM (1, 0)
1375 _GL_ARG_NONNULL ((1)));
1376_GL_CXXALIAS_RPL (vscanf, int, (const char *format, va_list args));
1377# else
1378_GL_CXXALIAS_SYS (vscanf, int, (const char *format, va_list args));
1379# endif
1380_GL_CXXALIASWARN (vscanf);
1381#endif
1382
1383#if @GNULIB_VSNPRINTF@
1384# if @REPLACE_VSNPRINTF@
1385# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1386# define vsnprintf rpl_vsnprintf
1387# endif
1388_GL_FUNCDECL_RPL (vsnprintf, int,
1389 (char *str, size_t size, const char *format, va_list args)
1390 _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1391 _GL_ARG_NONNULL ((3)));
1392_GL_CXXALIAS_RPL (vsnprintf, int,
1393 (char *str, size_t size, const char *format, va_list args));
1394# else
1395# if !@HAVE_DECL_VSNPRINTF@
1396_GL_FUNCDECL_SYS (vsnprintf, int,
1397 (char *str, size_t size, const char *format, va_list args)
1398 _GL_ATTRIBUTE_FORMAT_PRINTF (3, 0)
1399 _GL_ARG_NONNULL ((3)));
1400# endif
1401_GL_CXXALIAS_SYS (vsnprintf, int,
1402 (char *str, size_t size, const char *format, va_list args));
1403# endif
1404_GL_CXXALIASWARN (vsnprintf);
1405#elif defined GNULIB_POSIXCHECK
1406# undef vsnprintf
1407# if HAVE_RAW_DECL_VSNPRINTF
1408_GL_WARN_ON_USE (vsnprintf, "vsnprintf is unportable - "
1409 "use gnulib module vsnprintf for portability");
1410# endif
1411#endif
1412
1413#if @GNULIB_VSPRINTF_POSIX@
1414# if @REPLACE_VSPRINTF@
1415# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1416# define vsprintf rpl_vsprintf
1417# endif
1418_GL_FUNCDECL_RPL (vsprintf, int,
1419 (char *str, const char *format, va_list args)
1420 _GL_ATTRIBUTE_FORMAT_PRINTF (2, 0)
1421 _GL_ARG_NONNULL ((1, 2)));
1422_GL_CXXALIAS_RPL (vsprintf, int,
1423 (char *str, const char *format, va_list args));
1424# else
1425/* Need to cast, because on Solaris, the third parameter is
1426 __va_list args
1427 and GCC's fixincludes did not change this to __gnuc_va_list. */
1428_GL_CXXALIAS_SYS_CAST (vsprintf, int,
1429 (char *str, const char *format, va_list args));
1430# endif
c0c3707f 1431# if __GLIBC__ >= 2
6a29c58e 1432_GL_CXXALIASWARN (vsprintf);
c0c3707f 1433# endif
6a29c58e
YQ		 1434#elif defined GNULIB_POSIXCHECK
1435# undef vsprintf
1436/* Assume vsprintf is always declared. */
1437_GL_WARN_ON_USE (vsprintf, "vsprintf is not always POSIX compliant - "
1438 "use gnulib module vsprintf-posix for portable "
1439 "POSIX compliance");
1440#endif
1441
6a29c58e
YQ		 1442#endif /* _@GUARD_PREFIX@_STDIO_H */
1443#endif /* _@GUARD_PREFIX@_STDIO_H */
1444#endif
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