1 /* Like <fcntl.h>, but with non-working flags defined to 0.
3 Copyright (C) 2006-2010 Free Software Foundation, Inc.
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
18 /* written by Paul Eggert */
21 @PRAGMA_SYSTEM_HEADER@
25 #if defined __need_system_fcntl_h
26 /* Special invocation convention. */
28 #include <sys/types.h>
29 #ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */
30 # include <sys/stat.h>
32 #@INCLUDE_NEXT@ @NEXT_FCNTL_H@
35 /* Normal invocation convention. */
39 #include <sys/types.h>
40 #ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */
41 # include <sys/stat.h>
43 /* The include_next requires a split double-inclusion guard. */
44 #@INCLUDE_NEXT@ @NEXT_FCNTL_H@
49 #ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */
54 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
56 /* The definition of _GL_ARG_NONNULL is copied here. */
58 /* The definition of _GL_WARN_ON_USE is copied here. */
61 /* Declare overridden functions. */
65 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
67 # define fcntl rpl_fcntl
69 _GL_FUNCDECL_RPL (fcntl, int, (int fd, int action, ...));
70 _GL_CXXALIAS_RPL (fcntl, int, (int fd, int action, ...));
73 _GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...));
75 _GL_CXXALIAS_SYS (fcntl, int, (int fd, int action, ...));
77 _GL_CXXALIASWARN (fcntl);
78 #elif defined GNULIB_POSIXCHECK
80 # if HAVE_RAW_DECL_FCNTL
81 _GL_WARN_ON_USE (fcntl, "fcntl is not always POSIX compliant - "
82 "use gnulib module fcntl for portability");
88 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
90 # define open rpl_open
92 _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
93 _GL_ARG_NONNULL ((1)));
94 _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
96 _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
98 _GL_CXXALIASWARN (open);
99 #elif defined GNULIB_POSIXCHECK
101 /* Assume open is always declared. */
102 _GL_WARN_ON_USE (open, "open is not always POSIX compliant - "
103 "use gnulib module open for portability");
107 # if @REPLACE_OPENAT@
108 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
110 # define openat rpl_openat
112 _GL_FUNCDECL_RPL (openat, int,
113 (int fd, char const *file, int flags, /* mode_t mode */ ...)
114 _GL_ARG_NONNULL ((2)));
115 _GL_CXXALIAS_RPL (openat, int,
116 (int fd, char const *file, int flags, /* mode_t mode */ ...));
119 _GL_FUNCDECL_SYS (openat, int,
120 (int fd, char const *file, int flags, /* mode_t mode */ ...)
121 _GL_ARG_NONNULL ((2)));
123 _GL_CXXALIAS_SYS (openat, int,
124 (int fd, char const *file, int flags, /* mode_t mode */ ...));
126 _GL_CXXALIASWARN (openat);
127 #elif defined GNULIB_POSIXCHECK
129 # if HAVE_RAW_DECL_OPENAT
130 _GL_WARN_ON_USE (openat, "openat is not portable - "
131 "use gnulib module openat for portability");
136 /* Fix up the FD_* macros, only known to be missing on mingw. */
139 # define FD_CLOEXEC 1
142 /* Fix up the supported F_* macros. Intentionally leave other F_*
143 macros undefined. Only known to be missing on mingw. */
145 #ifndef F_DUPFD_CLOEXEC
146 # define F_DUPFD_CLOEXEC 0x40000000
147 /* Witness variable: 1 if gnulib defined F_DUPFD_CLOEXEC, 0 otherwise. */
148 # define GNULIB_defined_F_DUPFD_CLOEXEC 1
150 # define GNULIB_defined_F_DUPFD_CLOEXEC 0
161 /* Fix up the O_* macros. */
163 #if !defined O_DIRECT && defined O_DIRECTIO
164 /* Tru64 spells it `O_DIRECTIO'. */
165 # define O_DIRECT O_DIRECTIO
168 #if !defined O_CLOEXEC && defined O_NOINHERIT
169 /* Mingw spells it `O_NOINHERIT'. Intentionally leave it
170 undefined if not available. */
171 # define O_CLOEXEC O_NOINHERIT
183 # define O_DIRECTORY 0
191 # define O_EXEC O_RDONLY /* This is often close enough in older systems. */
203 # define O_NONBLOCK O_NDELAY
211 # define O_NOFOLLOW 0
223 # define O_SEARCH O_RDONLY /* This is often close enough in older systems. */
231 # define O_TTY_INIT 0
234 /* For systems that distinguish between text and binary I/O.
235 O_BINARY is usually declared in fcntl.h */
236 #if !defined O_BINARY && defined _O_BINARY
237 /* For MSC-compatible compilers. */
238 # define O_BINARY _O_BINARY
239 # define O_TEXT _O_TEXT
242 #if defined __BEOS__ || defined __HAIKU__
243 /* BeOS 5 and Haiku have O_BINARY and O_TEXT, but they have no effect. */
253 /* Fix up the AT_* macros. */
255 /* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive. Its
256 value exceeds INT_MAX, so its use as an int doesn't conform to the
257 C standard, and GCC and Sun C complain in some cases. If the bug
258 is present, undef AT_FDCWD here, so it can be redefined below. */
259 #if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
263 /* Use the same bit pattern as Solaris 9, but with the proper
264 signedness. The bit pattern is important, in case this actually is
265 Solaris with the above workaround. */
267 # define AT_FDCWD (-3041965)
270 /* Use the same values as Solaris 9. This shouldn't matter, but
271 there's no real reason to differ. */
272 #ifndef AT_SYMLINK_NOFOLLOW
273 # define AT_SYMLINK_NOFOLLOW 4096
277 # define AT_REMOVEDIR 1
280 /* Solaris 9 lacks these two, so just pick unique values. */
281 #ifndef AT_SYMLINK_FOLLOW
282 # define AT_SYMLINK_FOLLOW 2
286 # define AT_EACCESS 4
290 #endif /* _GL_FCNTL_H */
291 #endif /* _GL_FCNTL_H */