[bpt/guile.git] / lib / fcntl.in.h

/* Like <fcntl.h>, but with non-working flags defined to 0.

   Copyright (C) 2006-2011 Free Software Foundation, Inc.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

/* written by Paul Eggert */

#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
#endif
@PRAGMA_COLUMNS@

#if defined __need_system_fcntl_h
/* Special invocation convention.  */

#include <sys/types.h>
/* On some systems other than glibc, <sys/stat.h> is a prerequisite of
   <fcntl.h>.  On glibc systems, we would like to avoid namespace pollution.
   But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an
   extern "C" { ... } block, which leads to errors in C++ mode with the
   overridden <sys/stat.h> from gnulib.  These errors are known to be gone
   with g++ version >= 4.3.  */
#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
# include <sys/stat.h>
#endif
#@INCLUDE_NEXT@ @NEXT_FCNTL_H@

#else
/* Normal invocation convention.  */

#ifndef _@GUARD_PREFIX@_FCNTL_H

#include <sys/types.h>
/* On some systems other than glibc, <sys/stat.h> is a prerequisite of
   <fcntl.h>.  On glibc systems, we would like to avoid namespace pollution.
   But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an
   extern "C" { ... } block, which leads to errors in C++ mode with the
   overridden <sys/stat.h> from gnulib.  These errors are known to be gone
   with g++ version >= 4.3.  */
#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
# include <sys/stat.h>
#endif
/* The include_next requires a split double-inclusion guard.  */
#@INCLUDE_NEXT@ @NEXT_FCNTL_H@

#ifndef _@GUARD_PREFIX@_FCNTL_H
#define _@GUARD_PREFIX@_FCNTL_H

#ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems.  */
# include <unistd.h>
#endif


/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */

/* The definition of _GL_ARG_NONNULL is copied here.  */

/* The definition of _GL_WARN_ON_USE is copied here.  */


/* Declare overridden functions.  */

#if @GNULIB_FCNTL@
# if @REPLACE_FCNTL@
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef fcntl
#   define fcntl rpl_fcntl
#  endif
_GL_FUNCDECL_RPL (fcntl, int, (int fd, int action, ...));
_GL_CXXALIAS_RPL (fcntl, int, (int fd, int action, ...));
# else
#  if !@HAVE_FCNTL@
_GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...));
#  endif
_GL_CXXALIAS_SYS (fcntl, int, (int fd, int action, ...));
# endif
_GL_CXXALIASWARN (fcntl);
#elif defined GNULIB_POSIXCHECK
# undef fcntl
# if HAVE_RAW_DECL_FCNTL
_GL_WARN_ON_USE (fcntl, "fcntl is not always POSIX compliant - "
                 "use gnulib module fcntl for portability");
# endif
#endif

#if @GNULIB_OPEN@
# if @REPLACE_OPEN@
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef open
#   define open rpl_open
#  endif
_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
                             _GL_ARG_NONNULL ((1)));
_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
# else
_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
# endif
/* On HP-UX 11, in C++ mode, open() is defined as an inline function with a
   default argument.  _GL_CXXALIASWARN does not work in this case.  */
# if !defined __hpux
_GL_CXXALIASWARN (open);
# endif
#elif defined GNULIB_POSIXCHECK
# undef open
/* Assume open is always declared.  */
_GL_WARN_ON_USE (open, "open is not always POSIX compliant - "
                 "use gnulib module open for portability");
#endif

#if @GNULIB_OPENAT@
# if @REPLACE_OPENAT@
#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
#   undef openat
#   define openat rpl_openat
#  endif
_GL_FUNCDECL_RPL (openat, int,
                  (int fd, char const *file, int flags, /* mode_t mode */ ...)
                  _GL_ARG_NONNULL ((2)));
_GL_CXXALIAS_RPL (openat, int,
                  (int fd, char const *file, int flags, /* mode_t mode */ ...));
# else
#  if !@HAVE_OPENAT@
_GL_FUNCDECL_SYS (openat, int,
                  (int fd, char const *file, int flags, /* mode_t mode */ ...)
                  _GL_ARG_NONNULL ((2)));
#  endif
_GL_CXXALIAS_SYS (openat, int,
                  (int fd, char const *file, int flags, /* mode_t mode */ ...));
# endif
_GL_CXXALIASWARN (openat);
#elif defined GNULIB_POSIXCHECK
# undef openat
# if HAVE_RAW_DECL_OPENAT
_GL_WARN_ON_USE (openat, "openat is not portable - "
                 "use gnulib module openat for portability");
# endif
#endif


/* Fix up the FD_* macros, only known to be missing on mingw.  */

#ifndef FD_CLOEXEC
# define FD_CLOEXEC 1
#endif

/* Fix up the supported F_* macros.  Intentionally leave other F_*
   macros undefined.  Only known to be missing on mingw.  */

#ifndef F_DUPFD_CLOEXEC
# define F_DUPFD_CLOEXEC 0x40000000
/* Witness variable: 1 if gnulib defined F_DUPFD_CLOEXEC, 0 otherwise.  */
# define GNULIB_defined_F_DUPFD_CLOEXEC 1
#else
# define GNULIB_defined_F_DUPFD_CLOEXEC 0
#endif

#ifndef F_DUPFD
# define F_DUPFD 1
#endif

#ifndef F_GETFD
# define F_GETFD 2
#endif

/* Fix up the O_* macros.  */

#if !defined O_DIRECT && defined O_DIRECTIO
/* Tru64 spells it `O_DIRECTIO'.  */
# define O_DIRECT O_DIRECTIO
#endif

#if !defined O_CLOEXEC && defined O_NOINHERIT
/* Mingw spells it `O_NOINHERIT'.  */
# define O_CLOEXEC O_NOINHERIT
#endif

#ifndef O_CLOEXEC
# define O_CLOEXEC 0
#endif

#ifndef O_DIRECT
# define O_DIRECT 0
#endif

#ifndef O_DIRECTORY
# define O_DIRECTORY 0
#endif

#ifndef O_DSYNC
# define O_DSYNC 0
#endif

#ifndef O_EXEC
# define O_EXEC O_RDONLY /* This is often close enough in older systems.  */
#endif

#ifndef O_NDELAY
# define O_NDELAY 0
#endif

#ifndef O_NOATIME
# define O_NOATIME 0
#endif

#ifndef O_NONBLOCK
# define O_NONBLOCK O_NDELAY
#endif

/* If the gnulib module 'nonblocking' is in use, guarantee a working non-zero
   value of O_NONBLOCK.  Otherwise, O_NONBLOCK is defined (above) to O_NDELAY
   or to 0 as fallback.  */
#if @GNULIB_NONBLOCKING@
# if O_NONBLOCK
#  define GNULIB_defined_O_NONBLOCK 0
# else
#  define GNULIB_defined_O_NONBLOCK 1
#  undef O_NONBLOCK
#  define O_NONBLOCK 0x40000000
# endif
#endif

#ifndef O_NOCTTY
# define O_NOCTTY 0
#endif

#ifndef O_NOFOLLOW
# define O_NOFOLLOW 0
#endif

#ifndef O_NOLINKS
# define O_NOLINKS 0
#endif

#ifndef O_RSYNC
# define O_RSYNC 0
#endif

#ifndef O_SEARCH
# define O_SEARCH O_RDONLY /* This is often close enough in older systems.  */
#endif

#ifndef O_SYNC
# define O_SYNC 0
#endif

#ifndef O_TTY_INIT
# define O_TTY_INIT 0
#endif

#if O_ACCMODE != (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH)
# undef O_ACCMODE
# define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH)
#endif

/* For systems that distinguish between text and binary I/O.
   O_BINARY is usually declared in fcntl.h  */
#if !defined O_BINARY && defined _O_BINARY
  /* For MSC-compatible compilers.  */
# define O_BINARY _O_BINARY
# define O_TEXT _O_TEXT
#endif

#if defined __BEOS__ || defined __HAIKU__
  /* BeOS 5 and Haiku have O_BINARY and O_TEXT, but they have no effect.  */
# undef O_BINARY
# undef O_TEXT
#endif

#ifndef O_BINARY
# define O_BINARY 0
# define O_TEXT 0
#endif

/* Fix up the AT_* macros.  */

/* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive.  Its
   value exceeds INT_MAX, so its use as an int doesn't conform to the
   C standard, and GCC and Sun C complain in some cases.  If the bug
   is present, undef AT_FDCWD here, so it can be redefined below.  */
#if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
# undef AT_FDCWD
#endif

/* Use the same bit pattern as Solaris 9, but with the proper
   signedness.  The bit pattern is important, in case this actually is
   Solaris with the above workaround.  */
#ifndef AT_FDCWD
# define AT_FDCWD (-3041965)
#endif

/* Use the same values as Solaris 9.  This shouldn't matter, but
   there's no real reason to differ.  */
#ifndef AT_SYMLINK_NOFOLLOW
# define AT_SYMLINK_NOFOLLOW 4096
#endif

#ifndef AT_REMOVEDIR
# define AT_REMOVEDIR 1
#endif

/* Solaris 9 lacks these two, so just pick unique values.  */
#ifndef AT_SYMLINK_FOLLOW
# define AT_SYMLINK_FOLLOW 2
#endif

#ifndef AT_EACCESS
# define AT_EACCESS 4
#endif


#endif /* _@GUARD_PREFIX@_FCNTL_H */
#endif /* _@GUARD_PREFIX@_FCNTL_H */
#endif
Commit	Line	Data
3d458a81 AW	1	/* Like <fcntl.h>, but with non-working flags defined to 0.
	2
	3	Copyright (C) 2006-2011 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 Lesser General Public License as published by
	7	the Free Software Foundation; either version 3 of the License, or
	8	(at your option) 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 Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public License
	16	along with this program. If not, see <http://www.gnu.org/licenses/>. */
	17
	18	/* written by Paul Eggert */
	19
	20	#if __GNUC__ >= 3
	21	@PRAGMA_SYSTEM_HEADER@
	22	#endif
	23	@PRAGMA_COLUMNS@
	24
	25	#if defined __need_system_fcntl_h
	26	/* Special invocation convention. */
	27
	28	#include <sys/types.h>
	29	/* On some systems other than glibc, <sys/stat.h> is a prerequisite of
	30	<fcntl.h>. On glibc systems, we would like to avoid namespace pollution.
	31	But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an
	32	extern "C" { ... } block, which leads to errors in C++ mode with the
	33	overridden <sys/stat.h> from gnulib. These errors are known to be gone
	34	with g++ version >= 4.3. */
	35	#if !(defined __GLIBC__ \|\| defined __UCLIBC__) \|\| (defined __cplusplus && defined GNULIB_NAMESPACE && !(__GNUC__ > 4 \|\| (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
	36	# include <sys/stat.h>
	37	#endif
	38	#@INCLUDE_NEXT@ @NEXT_FCNTL_H@
	39
	40	#else
	41	/* Normal invocation convention. */
	42
	43	#ifndef _@GUARD_PREFIX@_FCNTL_H
	44
	45	#include <sys/types.h>
	46	/* On some systems other than glibc, <sys/stat.h> is a prerequisite of
	47	<fcntl.h>. On glibc systems, we would like to avoid namespace pollution.
	48	But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an
	49	extern "C" { ... } block, which leads to errors in C++ mode with the
	50	overridden <sys/stat.h> from gnulib. These errors are known to be gone
	51	with g++ version >= 4.3. */
	52	#if !(defined __GLIBC__ \|\| defined __UCLIBC__) \|\| (defined __cplusplus && defined GNULIB_NAMESPACE && !(__GNUC__ > 4 \|\| (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
	53	# include <sys/stat.h>
	54	#endif
	55	/* The include_next requires a split double-inclusion guard. */
	56	#@INCLUDE_NEXT@ @NEXT_FCNTL_H@
	57
	58	#ifndef _@GUARD_PREFIX@_FCNTL_H
	59	#define _@GUARD_PREFIX@_FCNTL_H
	60
	61	#ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */
	62	# include <unistd.h>
	63	#endif
	64
65
66	/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
67
68	/* The definition of _GL_ARG_NONNULL is copied here. */
69
70	/* The definition of _GL_WARN_ON_USE is copied here. */
71
72
73	/* Declare overridden functions. */
74
75	#if @GNULIB_FCNTL@
76	# if @REPLACE_FCNTL@
77	# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
78	# undef fcntl
79	# define fcntl rpl_fcntl
80	# endif
81	_GL_FUNCDECL_RPL (fcntl, int, (int fd, int action, ...));
82	_GL_CXXALIAS_RPL (fcntl, int, (int fd, int action, ...));
83	# else
84	# if !@HAVE_FCNTL@
85	_GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...));
86	# endif
87	_GL_CXXALIAS_SYS (fcntl, int, (int fd, int action, ...));
88	# endif
89	_GL_CXXALIASWARN (fcntl);
90	#elif defined GNULIB_POSIXCHECK
91	# undef fcntl
92	# if HAVE_RAW_DECL_FCNTL
93	_GL_WARN_ON_USE (fcntl, "fcntl is not always POSIX compliant - "
94	"use gnulib module fcntl for portability");
95	# endif
96	#endif
97
98	#if @GNULIB_OPEN@
99	# if @REPLACE_OPEN@
100	# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
101	# undef open
102	# define open rpl_open
103	# endif
104	_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
105	_GL_ARG_NONNULL ((1)));
106	_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
107	# else
108	_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
109	# endif
110	/* On HP-UX 11, in C++ mode, open() is defined as an inline function with a
111	default argument. _GL_CXXALIASWARN does not work in this case. */
112	# if !defined __hpux
113	_GL_CXXALIASWARN (open);
114	# endif
115	#elif defined GNULIB_POSIXCHECK
116	# undef open
117	/* Assume open is always declared. */
118	_GL_WARN_ON_USE (open, "open is not always POSIX compliant - "
119	"use gnulib module open for portability");
120	#endif
121
122	#if @GNULIB_OPENAT@
123	# if @REPLACE_OPENAT@
124	# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
125	# undef openat
126	# define openat rpl_openat
127	# endif
128	_GL_FUNCDECL_RPL (openat, int,
129	(int fd, char const file, int flags, / mode_t mode */ ...)
130	_GL_ARG_NONNULL ((2)));
131	_GL_CXXALIAS_RPL (openat, int,
132	(int fd, char const file, int flags, / mode_t mode */ ...));
133	# else
134	# if !@HAVE_OPENAT@
135	_GL_FUNCDECL_SYS (openat, int,
136	(int fd, char const file, int flags, / mode_t mode */ ...)
137	_GL_ARG_NONNULL ((2)));
138	# endif
139	_GL_CXXALIAS_SYS (openat, int,
140	(int fd, char const file, int flags, / mode_t mode */ ...));
141	# endif
142	_GL_CXXALIASWARN (openat);
143	#elif defined GNULIB_POSIXCHECK
144	# undef openat
145	# if HAVE_RAW_DECL_OPENAT
146	_GL_WARN_ON_USE (openat, "openat is not portable - "
147	"use gnulib module openat for portability");
148	# endif
149	#endif
150
151
152	/* Fix up the FD_* macros, only known to be missing on mingw. */
153
154	#ifndef FD_CLOEXEC
155	# define FD_CLOEXEC 1
156	#endif
157
158	/* Fix up the supported F_* macros. Intentionally leave other F_*
159	macros undefined. Only known to be missing on mingw. */
160
161	#ifndef F_DUPFD_CLOEXEC
162	# define F_DUPFD_CLOEXEC 0x40000000
163	/* Witness variable: 1 if gnulib defined F_DUPFD_CLOEXEC, 0 otherwise. */
164	# define GNULIB_defined_F_DUPFD_CLOEXEC 1
165	#else
166	# define GNULIB_defined_F_DUPFD_CLOEXEC 0
167	#endif
168
169	#ifndef F_DUPFD
170	# define F_DUPFD 1
171	#endif
172
173	#ifndef F_GETFD
174	# define F_GETFD 2
175	#endif
176
177	/* Fix up the O_* macros. */
178
179	#if !defined O_DIRECT && defined O_DIRECTIO
180	/* Tru64 spells it `O_DIRECTIO'. */
181	# define O_DIRECT O_DIRECTIO
182	#endif
183
184	#if !defined O_CLOEXEC && defined O_NOINHERIT
185	/* Mingw spells it `O_NOINHERIT'. */
186	# define O_CLOEXEC O_NOINHERIT
187	#endif
188
189	#ifndef O_CLOEXEC
190	# define O_CLOEXEC 0
191	#endif
192
193	#ifndef O_DIRECT
194	# define O_DIRECT 0
195	#endif
196
197	#ifndef O_DIRECTORY
198	# define O_DIRECTORY 0
199	#endif
200
201	#ifndef O_DSYNC
202	# define O_DSYNC 0
203	#endif
204
205	#ifndef O_EXEC
206	# define O_EXEC O_RDONLY /* This is often close enough in older systems. */
207	#endif
208
209	#ifndef O_NDELAY
210	# define O_NDELAY 0
211	#endif
212
213	#ifndef O_NOATIME
214	# define O_NOATIME 0
215	#endif
216
217	#ifndef O_NONBLOCK
218	# define O_NONBLOCK O_NDELAY
219	#endif
220
221	/* If the gnulib module 'nonblocking' is in use, guarantee a working non-zero
222	value of O_NONBLOCK. Otherwise, O_NONBLOCK is defined (above) to O_NDELAY
223	or to 0 as fallback. */
224	#if @GNULIB_NONBLOCKING@
225	# if O_NONBLOCK
226	# define GNULIB_defined_O_NONBLOCK 0
227	# else
228	# define GNULIB_defined_O_NONBLOCK 1
229	# undef O_NONBLOCK
230	# define O_NONBLOCK 0x40000000
231	# endif
232	#endif
233
234	#ifndef O_NOCTTY
235	# define O_NOCTTY 0
236	#endif
237
238	#ifndef O_NOFOLLOW
239	# define O_NOFOLLOW 0
240	#endif
241
242	#ifndef O_NOLINKS
243	# define O_NOLINKS 0
244	#endif
245
246	#ifndef O_RSYNC
247	# define O_RSYNC 0
248	#endif
249
250	#ifndef O_SEARCH
251	# define O_SEARCH O_RDONLY /* This is often close enough in older systems. */
252	#endif
253
254	#ifndef O_SYNC
255	# define O_SYNC 0
256	#endif
257
258	#ifndef O_TTY_INIT
259	# define O_TTY_INIT 0
260	#endif
261
262	#if O_ACCMODE != (O_RDONLY \| O_WRONLY \| O_RDWR \| O_EXEC \| O_SEARCH)
263	# undef O_ACCMODE
264	# define O_ACCMODE (O_RDONLY \| O_WRONLY \| O_RDWR \| O_EXEC \| O_SEARCH)
265	#endif
266
267	/* For systems that distinguish between text and binary I/O.
268	O_BINARY is usually declared in fcntl.h */
269	#if !defined O_BINARY && defined _O_BINARY
270	/* For MSC-compatible compilers. */
271	# define O_BINARY _O_BINARY
272	# define O_TEXT _O_TEXT
273	#endif
274
275	#if defined __BEOS__ \|\| defined __HAIKU__
276	/* BeOS 5 and Haiku have O_BINARY and O_TEXT, but they have no effect. */
277	# undef O_BINARY
278	# undef O_TEXT
279	#endif
280
281	#ifndef O_BINARY
282	# define O_BINARY 0
283	# define O_TEXT 0
284	#endif
285
286	/* Fix up the AT_* macros. */
287
288	/* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive. Its
289	value exceeds INT_MAX, so its use as an int doesn't conform to the
290	C standard, and GCC and Sun C complain in some cases. If the bug
291	is present, undef AT_FDCWD here, so it can be redefined below. */
292	#if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
293	# undef AT_FDCWD
294	#endif
295
296	/* Use the same bit pattern as Solaris 9, but with the proper
297	signedness. The bit pattern is important, in case this actually is
298	Solaris with the above workaround. */
299	#ifndef AT_FDCWD
300	# define AT_FDCWD (-3041965)
301	#endif
302
303	/* Use the same values as Solaris 9. This shouldn't matter, but
304	there's no real reason to differ. */
305	#ifndef AT_SYMLINK_NOFOLLOW
306	# define AT_SYMLINK_NOFOLLOW 4096
307	#endif
308
309	#ifndef AT_REMOVEDIR
310	# define AT_REMOVEDIR 1
311	#endif
312
313	/* Solaris 9 lacks these two, so just pick unique values. */
314	#ifndef AT_SYMLINK_FOLLOW
315	# define AT_SYMLINK_FOLLOW 2
316	#endif
317
318	#ifndef AT_EACCESS
319	# define AT_EACCESS 4
320	#endif
321
322
323	#endif /* _@GUARD_PREFIX@_FCNTL_H */
324	#endif /* _@GUARD_PREFIX@_FCNTL_H */
325	#endif