1 /* Like <fcntl.h>, but with non-working flags defined to 0.
3 Copyright (C) 2006-2009 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>
30 #@INCLUDE_NEXT@ @NEXT_FCNTL_H@
33 /* Normal invocation convention. */
37 #include <sys/types.h>
40 /* The include_next requires a split double-inclusion guard. */
41 #@INCLUDE_NEXT@ @NEXT_FCNTL_H@
47 /* The definition of GL_LINK_WARNING is copied here. */
49 /* The definition of _GL_ARG_NONNULL is copied here. */
52 /* Declare overridden functions. */
61 # define fcntl rpl_fcntl
62 extern int fcntl (int fd, int action, ...);
64 #elif defined GNULIB_POSIXCHECK
67 (GL_LINK_WARNING ("fcntl is not always POSIX compliant - " \
68 "use gnulib module fcntl for portability"), \
75 # define open rpl_open
76 extern int open (const char *filename, int flags, ...) _GL_ARG_NONNULL ((1));
78 #elif defined GNULIB_POSIXCHECK
81 (GL_LINK_WARNING ("open is not always POSIX compliant - " \
82 "use gnulib module open for portability"), \
89 # define openat rpl_openat
91 # if !@HAVE_OPENAT@ || @REPLACE_OPENAT@
92 extern int openat (int fd, char const *file, int flags, /* mode_t mode */ ...)
93 _GL_ARG_NONNULL ((2));
95 #elif defined GNULIB_POSIXCHECK
98 (GL_LINK_WARNING ("openat is not portable - " \
99 "use gnulib module openat for portability"), \
107 /* Fix up the FD_* macros. */
110 # define FD_CLOEXEC 1
113 /* Fix up the supported F_* macros. Intentionally leave other F_*
116 #ifndef F_DUPFD_CLOEXEC
117 # define F_DUPFD_CLOEXEC 0x40000000
118 /* Witness variable: 1 if gnulib defined F_DUPFD_CLOEXEC, 0 otherwise. */
119 # define GNULIB_defined_F_DUPFD_CLOEXEC 1
121 # define GNULIB_defined_F_DUPFD_CLOEXEC 0
124 /* Fix up the O_* macros. */
126 #if !defined O_DIRECT && defined O_DIRECTIO
127 /* Tru64 spells it `O_DIRECTIO'. */
128 # define O_DIRECT O_DIRECTIO
131 #if !defined O_CLOEXEC && defined O_NOINHERIT
132 /* Mingw spells it `O_NOINHERIT'. Intentionally leave it
133 undefined if not available. */
134 # define O_CLOEXEC O_NOINHERIT
142 # define O_DIRECTORY 0
158 # define O_NONBLOCK O_NDELAY
166 # define O_NOFOLLOW 0
182 # define O_TTY_INIT 0
185 /* For systems that distinguish between text and binary I/O.
186 O_BINARY is usually declared in fcntl.h */
187 #if !defined O_BINARY && defined _O_BINARY
188 /* For MSC-compatible compilers. */
189 # define O_BINARY _O_BINARY
190 # define O_TEXT _O_TEXT
193 #if defined __BEOS__ || defined __HAIKU__
194 /* BeOS 5 and Haiku have O_BINARY and O_TEXT, but they have no effect. */
204 /* Fix up the AT_* macros. */
206 /* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive. Its
207 value exceeds INT_MAX, so its use as an int doesn't conform to the
208 C standard, and GCC and Sun C complain in some cases. If the bug
209 is present, undef AT_FDCWD here, so it can be redefined below. */
210 #if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
214 /* Use the same bit pattern as Solaris 9, but with the proper
215 signedness. The bit pattern is important, in case this actually is
216 Solaris with the above workaround. */
218 # define AT_FDCWD (-3041965)
221 /* Use the same values as Solaris 9. This shouldn't matter, but
222 there's no real reason to differ. */
223 #ifndef AT_SYMLINK_NOFOLLOW
224 # define AT_SYMLINK_NOFOLLOW 4096
228 # define AT_REMOVEDIR 1
231 /* Solaris 9 lacks these two, so just pick unique values. */
232 #ifndef AT_SYMLINK_FOLLOW
233 # define AT_SYMLINK_FOLLOW 2
237 # define AT_EACCESS 4
241 #endif /* _GL_FCNTL_H */
242 #endif /* _GL_FCNTL_H */