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>
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>
44 /* The include_next requires a split double-inclusion guard. */
45 #@INCLUDE_NEXT@ @NEXT_FCNTL_H@
51 /* The definition of GL_LINK_WARNING is copied here. */
53 /* The definition of _GL_ARG_NONNULL is copied here. */
56 /* Declare overridden functions. */
65 # define fcntl rpl_fcntl
67 # if !@HAVE_FCNTL@ || @REPLACE_FCNTL@
68 extern int fcntl (int fd, int action, ...);
70 #elif defined GNULIB_POSIXCHECK
73 (GL_LINK_WARNING ("fcntl is not always POSIX compliant - " \
74 "use gnulib module fcntl for portability"), \
81 # define open rpl_open
82 extern int open (const char *filename, int flags, ...) _GL_ARG_NONNULL ((1));
84 #elif defined GNULIB_POSIXCHECK
87 (GL_LINK_WARNING ("open is not always POSIX compliant - " \
88 "use gnulib module open for portability"), \
95 # define openat rpl_openat
97 # if !@HAVE_OPENAT@ || @REPLACE_OPENAT@
98 extern int openat (int fd, char const *file, int flags, /* mode_t mode */ ...)
99 _GL_ARG_NONNULL ((2));
101 #elif defined GNULIB_POSIXCHECK
104 (GL_LINK_WARNING ("openat is not portable - " \
105 "use gnulib module openat for portability"), \
113 /* Fix up the FD_* macros, only known to be missing on mingw. */
116 # define FD_CLOEXEC 1
119 /* Fix up the supported F_* macros. Intentionally leave other F_*
120 macros undefined. Only known to be missing on mingw. */
122 #ifndef F_DUPFD_CLOEXEC
123 # define F_DUPFD_CLOEXEC 0x40000000
124 /* Witness variable: 1 if gnulib defined F_DUPFD_CLOEXEC, 0 otherwise. */
125 # define GNULIB_defined_F_DUPFD_CLOEXEC 1
127 # define GNULIB_defined_F_DUPFD_CLOEXEC 0
138 /* Fix up the O_* macros. */
140 #if !defined O_DIRECT && defined O_DIRECTIO
141 /* Tru64 spells it `O_DIRECTIO'. */
142 # define O_DIRECT O_DIRECTIO
145 #if !defined O_CLOEXEC && defined O_NOINHERIT
146 /* Mingw spells it `O_NOINHERIT'. Intentionally leave it
147 undefined if not available. */
148 # define O_CLOEXEC O_NOINHERIT
156 # define O_DIRECTORY 0
172 # define O_NONBLOCK O_NDELAY
180 # define O_NOFOLLOW 0
196 # define O_TTY_INIT 0
199 /* For systems that distinguish between text and binary I/O.
200 O_BINARY is usually declared in fcntl.h */
201 #if !defined O_BINARY && defined _O_BINARY
202 /* For MSC-compatible compilers. */
203 # define O_BINARY _O_BINARY
204 # define O_TEXT _O_TEXT
207 #if defined __BEOS__ || defined __HAIKU__
208 /* BeOS 5 and Haiku have O_BINARY and O_TEXT, but they have no effect. */
218 /* Fix up the AT_* macros. */
220 /* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive. Its
221 value exceeds INT_MAX, so its use as an int doesn't conform to the
222 C standard, and GCC and Sun C complain in some cases. If the bug
223 is present, undef AT_FDCWD here, so it can be redefined below. */
224 #if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
228 /* Use the same bit pattern as Solaris 9, but with the proper
229 signedness. The bit pattern is important, in case this actually is
230 Solaris with the above workaround. */
232 # define AT_FDCWD (-3041965)
235 /* Use the same values as Solaris 9. This shouldn't matter, but
236 there's no real reason to differ. */
237 #ifndef AT_SYMLINK_NOFOLLOW
238 # define AT_SYMLINK_NOFOLLOW 4096
242 # define AT_REMOVEDIR 1
245 /* Solaris 9 lacks these two, so just pick unique values. */
246 #ifndef AT_SYMLINK_FOLLOW
247 # define AT_SYMLINK_FOLLOW 2
251 # define AT_EACCESS 4
255 #endif /* _GL_FCNTL_H */
256 #endif /* _GL_FCNTL_H */