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1/* A GNU-like <stdio.h>.
2
3 Copyright (C) 2004, 2007-2008 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, write to the Free Software Foundation,
17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18
19#if defined __need_FILE || defined __need___FILE
20/* Special invocation convention inside glibc header files. */
21
22#@INCLUDE_NEXT@ @NEXT_STDIO_H@
23
24#else
25/* Normal invocation convention. */
26
27#ifndef _GL_STDIO_H
28
29/* The include_next requires a split double-inclusion guard. */
30#@INCLUDE_NEXT@ @NEXT_STDIO_H@
31
32#ifndef _GL_STDIO_H
33#define _GL_STDIO_H
34
35#include <stdarg.h>
36#include <stddef.h>
37
38#if (@GNULIB_FSEEKO@ && @REPLACE_FSEEKO@) \
39 || (@GNULIB_FTELLO@ && @REPLACE_FTELLO@) \
40 || (@GNULIB_GETDELIM@ && !@HAVE_DECL_GETDELIM@) \
41 || (@GNULIB_GETLINE@ && (!@HAVE_DECL_GETLINE@ || @REPLACE_GETLINE@))
42/* Get off_t and ssize_t. */
43# include <sys/types.h>
44#endif
45
46#ifndef __attribute__
47/* This feature is available in gcc versions 2.5 and later. */
48# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
49# define __attribute__(Spec) /* empty */
50# endif
51/* The __-protected variants of `format' and `printf' attributes
52 are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
53# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
54# define __format__ format
55# define __printf__ printf
56# endif
57#endif
58
59
60/* The definition of GL_LINK_WARNING is copied here. */
61
62
63#ifdef __cplusplus
64extern "C" {
65#endif
66
67
68#if @GNULIB_FPRINTF_POSIX@
69# if @REPLACE_FPRINTF@
70# define fprintf rpl_fprintf
71extern int fprintf (FILE *fp, const char *format, ...)
72 __attribute__ ((__format__ (__printf__, 2, 3)));
73# endif
74#elif defined GNULIB_POSIXCHECK
75# undef fprintf
76# define fprintf \
77 (GL_LINK_WARNING ("fprintf is not always POSIX compliant - " \
78 "use gnulib module fprintf-posix for portable " \
79 "POSIX compliance"), \
80 fprintf)
81#endif
82
83#if @GNULIB_VFPRINTF_POSIX@
84# if @REPLACE_VFPRINTF@
85# define vfprintf rpl_vfprintf
86extern int vfprintf (FILE *fp, const char *format, va_list args)
87 __attribute__ ((__format__ (__printf__, 2, 0)));
88# endif
89#elif defined GNULIB_POSIXCHECK
90# undef vfprintf
91# define vfprintf(s,f,a) \
92 (GL_LINK_WARNING ("vfprintf is not always POSIX compliant - " \
93 "use gnulib module vfprintf-posix for portable " \
94 "POSIX compliance"), \
95 vfprintf (s, f, a))
96#endif
97
98#if @GNULIB_PRINTF_POSIX@
99# if @REPLACE_PRINTF@
100/* Don't break __attribute__((format(printf,M,N))). */
101# define printf __printf__
102extern int printf (const char *format, ...)
103 __attribute__ ((__format__ (__printf__, 1, 2)));
104# endif
105#elif defined GNULIB_POSIXCHECK
106# undef printf
107# define printf \
108 (GL_LINK_WARNING ("printf is not always POSIX compliant - " \
109 "use gnulib module printf-posix for portable " \
110 "POSIX compliance"), \
111 printf)
112/* Don't break __attribute__((format(printf,M,N))). */
113# define format(kind,m,n) format (__##kind##__, m, n)
114# define __format__(kind,m,n) __format__ (__##kind##__, m, n)
115# define ____printf____ __printf__
116# define ____scanf____ __scanf__
117# define ____strftime____ __strftime__
118# define ____strfmon____ __strfmon__
119#endif
120
121#if @GNULIB_VPRINTF_POSIX@
122# if @REPLACE_VPRINTF@
123# define vprintf rpl_vprintf
124extern int vprintf (const char *format, va_list args)
125 __attribute__ ((__format__ (__printf__, 1, 0)));
126# endif
127#elif defined GNULIB_POSIXCHECK
128# undef vprintf
129# define vprintf(f,a) \
130 (GL_LINK_WARNING ("vprintf is not always POSIX compliant - " \
131 "use gnulib module vprintf-posix for portable " \
132 "POSIX compliance"), \
133 vprintf (f, a))
134#endif
135
136#if @GNULIB_SNPRINTF@
137# if @REPLACE_SNPRINTF@
138# define snprintf rpl_snprintf
139# endif
140# if @REPLACE_SNPRINTF@ || !@HAVE_DECL_SNPRINTF@
141extern int snprintf (char *str, size_t size, const char *format, ...)
142 __attribute__ ((__format__ (__printf__, 3, 4)));
143# endif
144#elif defined GNULIB_POSIXCHECK
145# undef snprintf
146# define snprintf \
147 (GL_LINK_WARNING ("snprintf is unportable - " \
148 "use gnulib module snprintf for portability"), \
149 snprintf)
150#endif
151
152#if @GNULIB_VSNPRINTF@
153# if @REPLACE_VSNPRINTF@
154# define vsnprintf rpl_vsnprintf
155# endif
156# if @REPLACE_VSNPRINTF@ || !@HAVE_DECL_VSNPRINTF@
157extern int vsnprintf (char *str, size_t size, const char *format, va_list args)
158 __attribute__ ((__format__ (__printf__, 3, 0)));
159# endif
160#elif defined GNULIB_POSIXCHECK
161# undef vsnprintf
162# define vsnprintf(b,s,f,a) \
163 (GL_LINK_WARNING ("vsnprintf is unportable - " \
164 "use gnulib module vsnprintf for portability"), \
165 vsnprintf (b, s, f, a))
166#endif
167
168#if @GNULIB_SPRINTF_POSIX@
169# if @REPLACE_SPRINTF@
170# define sprintf rpl_sprintf
171extern int sprintf (char *str, const char *format, ...)
172 __attribute__ ((__format__ (__printf__, 2, 3)));
173# endif
174#elif defined GNULIB_POSIXCHECK
175# undef sprintf
176# define sprintf \
177 (GL_LINK_WARNING ("sprintf is not always POSIX compliant - " \
178 "use gnulib module sprintf-posix for portable " \
179 "POSIX compliance"), \
180 sprintf)
181#endif
182
183#if @GNULIB_VSPRINTF_POSIX@
184# if @REPLACE_VSPRINTF@
185# define vsprintf rpl_vsprintf
186extern int vsprintf (char *str, const char *format, va_list args)
187 __attribute__ ((__format__ (__printf__, 2, 0)));
188# endif
189#elif defined GNULIB_POSIXCHECK
190# undef vsprintf
191# define vsprintf(b,f,a) \
192 (GL_LINK_WARNING ("vsprintf is not always POSIX compliant - " \
193 "use gnulib module vsprintf-posix for portable " \
194 "POSIX compliance"), \
195 vsprintf (b, f, a))
196#endif
197
198#if @GNULIB_VASPRINTF@
199# if @REPLACE_VASPRINTF@
200# define asprintf rpl_asprintf
201# define vasprintf rpl_vasprintf
202# endif
203# if @REPLACE_VASPRINTF@ || !@HAVE_VASPRINTF@
204 /* Write formatted output to a string dynamically allocated with malloc().
205 If the memory allocation succeeds, store the address of the string in
206 *RESULT and return the number of resulting bytes, excluding the trailing
207 NUL. Upon memory allocation error, or some other error, return -1. */
208 extern int asprintf (char **result, const char *format, ...)
209 __attribute__ ((__format__ (__printf__, 2, 3)));
210 extern int vasprintf (char **result, const char *format, va_list args)
211 __attribute__ ((__format__ (__printf__, 2, 0)));
212# endif
213#endif
214
215#if @GNULIB_FOPEN@
216# if @REPLACE_FOPEN@
217# define fopen rpl_fopen
218extern FILE * fopen (const char *filename, const char *mode);
219# endif
220#elif defined GNULIB_POSIXCHECK
221# undef fopen
222# define fopen(f,m) \
223 (GL_LINK_WARNING ("fopen on Win32 platforms is not POSIX compatible - " \
224 "use gnulib module fopen for portability"), \
225 fopen (f, m))
226#endif
227
228#if @GNULIB_FREOPEN@
229# if @REPLACE_FREOPEN@
230# define freopen rpl_freopen
231extern FILE * freopen (const char *filename, const char *mode, FILE *stream);
232# endif
233#elif defined GNULIB_POSIXCHECK
234# undef freopen
235# define freopen(f,m,s) \
236 (GL_LINK_WARNING ("freopen on Win32 platforms is not POSIX compatible - " \
237 "use gnulib module freopen for portability"), \
238 freopen (f, m, s))
239#endif
240
241#if @GNULIB_FSEEKO@
242# if @REPLACE_FSEEKO@
243/* Provide fseek, fseeko functions that are aware of a preceding
244 fflush(), and which detect pipes. */
245# define fseeko rpl_fseeko
246extern int fseeko (FILE *fp, off_t offset, int whence);
247# define fseek(fp, offset, whence) fseeko (fp, (off_t)(offset), whence)
248# endif
249#elif defined GNULIB_POSIXCHECK
250# undef fseeko
251# define fseeko(f,o,w) \
252 (GL_LINK_WARNING ("fseeko is unportable - " \
253 "use gnulib module fseeko for portability"), \
254 fseeko (f, o, w))
255#endif
256
257#if @GNULIB_FSEEK@ && @REPLACE_FSEEK@
258extern int rpl_fseek (FILE *fp, long offset, int whence);
259# undef fseek
260# if defined GNULIB_POSIXCHECK
261# define fseek(f,o,w) \
262 (GL_LINK_WARNING ("fseek cannot handle files larger than 4 GB " \
263 "on 32-bit platforms - " \
264 "use fseeko function for handling of large files"), \
265 rpl_fseek (f, o, w))
266# else
267# define fseek rpl_fseek
268# endif
269#elif defined GNULIB_POSIXCHECK
270# ifndef fseek
271# define fseek(f,o,w) \
272 (GL_LINK_WARNING ("fseek cannot handle files larger than 4 GB " \
273 "on 32-bit platforms - " \
274 "use fseeko function for handling of large files"), \
275 fseek (f, o, w))
276# endif
277#endif
278
279#if @GNULIB_FTELLO@
280# if @REPLACE_FTELLO@
281# define ftello rpl_ftello
282extern off_t ftello (FILE *fp);
283# define ftell(fp) ftello (fp)
284# endif
285#elif defined GNULIB_POSIXCHECK
286# undef ftello
287# define ftello(f) \
288 (GL_LINK_WARNING ("ftello is unportable - " \
289 "use gnulib module ftello for portability"), \
290 ftello (f))
291#endif
292
293#if @GNULIB_FTELL@ && @REPLACE_FTELL@
294extern long rpl_ftell (FILE *fp);
295# undef ftell
296# if GNULIB_POSIXCHECK
297# define ftell(f) \
298 (GL_LINK_WARNING ("ftell cannot handle files larger than 4 GB " \
299 "on 32-bit platforms - " \
300 "use ftello function for handling of large files"), \
301 rpl_ftell (f))
302# else
303# define ftell rpl_ftell
304# endif
305#elif defined GNULIB_POSIXCHECK
306# ifndef ftell
307# define ftell(f) \
308 (GL_LINK_WARNING ("ftell cannot handle files larger than 4 GB " \
309 "on 32-bit platforms - " \
310 "use ftello function for handling of large files"), \
311 ftell (f))
312# endif
313#endif
314
315#if @GNULIB_FFLUSH@
316# if @REPLACE_FFLUSH@
317# define fflush rpl_fflush
318 /* Flush all pending data on STREAM according to POSIX rules. Both
319 output and seekable input streams are supported.
320 Note! LOSS OF DATA can occur if fflush is applied on an input stream
321 that is _not_seekable_ or on an update stream that is _not_seekable_
322 and in which the most recent operation was input. Seekability can
323 be tested with lseek(fileno(fp),0,SEEK_CUR). */
324 extern int fflush (FILE *gl_stream);
325# endif
326#elif defined GNULIB_POSIXCHECK
327# undef fflush
328# define fflush(f) \
329 (GL_LINK_WARNING ("fflush is not always POSIX compliant - " \
330 "use gnulib module fflush for portable " \
331 "POSIX compliance"), \
332 fflush (f))
333#endif
334
335#if @GNULIB_GETDELIM@
336# if !@HAVE_DECL_GETDELIM@
337/* Read input, up to (and including) the next occurrence of DELIMITER, from
338 STREAM, store it in *LINEPTR (and NUL-terminate it).
339 *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
340 bytes of space. It is realloc'd as necessary.
341 Return the number of bytes read and stored at *LINEPTR (not including the
342 NUL terminator), or -1 on error or EOF. */
343extern ssize_t getdelim (char **lineptr, size_t *linesize, int delimiter,
344 FILE *stream);
345# endif
346#elif defined GNULIB_POSIXCHECK
347# undef getdelim
348# define getdelim(l, s, d, f) \
349 (GL_LINK_WARNING ("getdelim is unportable - " \
350 "use gnulib module getdelim for portability"), \
351 getdelim (l, s, d, f))
352#endif
353
354#if @GNULIB_GETLINE@
355# if @REPLACE_GETLINE@
356# undef getline
357# define getline rpl_getline
358# endif
359# if !@HAVE_DECL_GETLINE@ || @REPLACE_GETLINE@
360/* Read a line, up to (and including) the next newline, from STREAM, store it
361 in *LINEPTR (and NUL-terminate it).
362 *LINEPTR is a pointer returned from malloc (or NULL), pointing to *LINESIZE
363 bytes of space. It is realloc'd as necessary.
364 Return the number of bytes read and stored at *LINEPTR (not including the
365 NUL terminator), or -1 on error or EOF. */
366extern ssize_t getline (char **lineptr, size_t *linesize, FILE *stream);
367# endif
368#elif defined GNULIB_POSIXCHECK
369# undef getline
370# define getline(l, s, f) \
371 (GL_LINK_WARNING ("getline is unportable - " \
372 "use gnulib module getline for portability"), \
373 getline (l, s, f))
374#endif
375
376#ifdef __cplusplus
377}
378#endif
379
380#endif /* _GL_STDIO_H */
381#endif /* _GL_STDIO_H */
382#endif