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@
24 #if defined __need_system_fcntl_h
25 /* Special invocation convention. */
27 #include <sys/types.h>
28 #ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */
29 # include <sys/stat.h>
31 #@INCLUDE_NEXT@ @NEXT_FCNTL_H@
34 /* Normal invocation convention. */
38 #include <sys/types.h>
39 #ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */
40 # include <sys/stat.h>
42 /* The include_next requires a split double-inclusion guard. */
43 #@INCLUDE_NEXT@ @NEXT_FCNTL_H@
48 #ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */
53 /* The definition of _GL_ARG_NONNULL is copied here. */
55 /* The definition of _GL_WARN_ON_USE is copied here. */
58 /* Declare overridden functions. */
67 # define fcntl rpl_fcntl
69 # if !@HAVE_FCNTL@ || @REPLACE_FCNTL@
70 extern int fcntl (int fd, int action, ...);
72 #elif defined GNULIB_POSIXCHECK
74 # if HAVE_RAW_DECL_FCNTL
75 _GL_WARN_ON_USE (fcntl, "fcntl is not always POSIX compliant - "
76 "use gnulib module fcntl for portability");
83 # define open rpl_open
84 extern int open (const char *filename, int flags, ...) _GL_ARG_NONNULL ((1));
86 #elif defined GNULIB_POSIXCHECK
88 /* Assume open is always declared. */
89 _GL_WARN_ON_USE (open, "open is not always POSIX compliant - "
90 "use gnulib module open for portability");
96 # define openat rpl_openat
98 # if !@HAVE_OPENAT@ || @REPLACE_OPENAT@
99 extern int openat (int fd, char const *file, int flags, /* mode_t mode */ ...)
100 _GL_ARG_NONNULL ((2));
102 #elif defined GNULIB_POSIXCHECK
104 # if HAVE_RAW_DECL_OPENAT
105 _GL_WARN_ON_USE (openat, "openat is not portable - "
106 "use gnulib module openat for portability");
114 /* Fix up the FD_* macros, only known to be missing on mingw. */
117 # define FD_CLOEXEC 1
120 /* Fix up the supported F_* macros. Intentionally leave other F_*
121 macros undefined. Only known to be missing on mingw. */
123 #ifndef F_DUPFD_CLOEXEC
124 # define F_DUPFD_CLOEXEC 0x40000000
125 /* Witness variable: 1 if gnulib defined F_DUPFD_CLOEXEC, 0 otherwise. */
126 # define GNULIB_defined_F_DUPFD_CLOEXEC 1
128 # define GNULIB_defined_F_DUPFD_CLOEXEC 0
139 /* Fix up the O_* macros. */
141 #if !defined O_DIRECT && defined O_DIRECTIO
142 /* Tru64 spells it `O_DIRECTIO'. */
143 # define O_DIRECT O_DIRECTIO
146 #if !defined O_CLOEXEC && defined O_NOINHERIT
147 /* Mingw spells it `O_NOINHERIT'. Intentionally leave it
148 undefined if not available. */
149 # define O_CLOEXEC O_NOINHERIT
157 # define O_DIRECTORY 0
173 # define O_NONBLOCK O_NDELAY
181 # define O_NOFOLLOW 0
197 # define O_TTY_INIT 0
200 /* For systems that distinguish between text and binary I/O.
201 O_BINARY is usually declared in fcntl.h */
202 #if !defined O_BINARY && defined _O_BINARY
203 /* For MSC-compatible compilers. */
204 # define O_BINARY _O_BINARY
205 # define O_TEXT _O_TEXT
208 #if defined __BEOS__ || defined __HAIKU__
209 /* BeOS 5 and Haiku have O_BINARY and O_TEXT, but they have no effect. */
219 /* Fix up the AT_* macros. */
221 /* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive. Its
222 value exceeds INT_MAX, so its use as an int doesn't conform to the
223 C standard, and GCC and Sun C complain in some cases. If the bug
224 is present, undef AT_FDCWD here, so it can be redefined below. */
225 #if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
229 /* Use the same bit pattern as Solaris 9, but with the proper
230 signedness. The bit pattern is important, in case this actually is
231 Solaris with the above workaround. */
233 # define AT_FDCWD (-3041965)
236 /* Use the same values as Solaris 9. This shouldn't matter, but
237 there's no real reason to differ. */
238 #ifndef AT_SYMLINK_NOFOLLOW
239 # define AT_SYMLINK_NOFOLLOW 4096
243 # define AT_REMOVEDIR 1
246 /* Solaris 9 lacks these two, so just pick unique values. */
247 #ifndef AT_SYMLINK_FOLLOW
248 # define AT_SYMLINK_FOLLOW 2
252 # define AT_EACCESS 4
256 #endif /* _GL_FCNTL_H */
257 #endif /* _GL_FCNTL_H */