/* Like <fcntl.h>, but with non-working flags defined to 0. Copyright (C) 2006-2020 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://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. */ /* Needed before <sys/stat.h>. May also define off_t to a 64-bit type on native Windows. */ #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 && (defined __ICC || !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))) # include <sys/stat.h> #endif #@INCLUDE_NEXT@ @NEXT_FCNTL_H@ /* Native Windows platforms declare open(), creat() in <io.h>. */ #if (@GNULIB_CREAT@ || @GNULIB_OPEN@ || defined GNULIB_POSIXCHECK) \ && (defined _WIN32 && ! defined __CYGWIN__) # include <io.h> #endif #else /* Normal invocation convention. */ #ifndef _@GUARD_PREFIX@_FCNTL_H /* Needed before <sys/stat.h>. May also define off_t to a 64-bit type on native Windows. */ #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 && (defined __ICC || !(__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@ /* Native Windows platforms declare open(), creat() in <io.h>. */ #if (@GNULIB_CREAT@ || @GNULIB_OPEN@ || defined GNULIB_POSIXCHECK) \ && (defined _WIN32 && ! defined __CYGWIN__) # include <io.h> #endif #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_CREAT@ # if @REPLACE_CREAT@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # undef creat # define creat rpl_creat # endif _GL_FUNCDECL_RPL (creat, int, (const char *filename, mode_t mode) _GL_ARG_NONNULL ((1))); _GL_CXXALIAS_RPL (creat, int, (const char *filename, mode_t mode)); # else _GL_CXXALIAS_SYS (creat, int, (const char *filename, mode_t mode)); # endif _GL_CXXALIASWARN (creat); #elif defined GNULIB_POSIXCHECK # undef creat /* Assume creat is always declared. */ _GL_WARN_ON_USE (creat, "creat is not always POSIX compliant - " "use gnulib module creat for portability"); #endif #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, ...)); # if !GNULIB_defined_rpl_fcntl # define GNULIB_defined_rpl_fcntl 1 # endif # else # if !@HAVE_FCNTL@ _GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...)); # if !GNULIB_defined_fcntl # define GNULIB_defined_fcntl 1 # endif # 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. */ /* AIX 7.1 with XL C 12.1 defines O_CLOEXEC, O_NOFOLLOW, and O_TTY_INIT to values outside 'int' range, so omit these misdefinitions. But avoid namespace pollution on non-AIX systems. */ #ifdef _AIX # include <limits.h> # if defined O_CLOEXEC && ! (INT_MIN <= O_CLOEXEC && O_CLOEXEC <= INT_MAX) # undef O_CLOEXEC # endif # if defined O_NOFOLLOW && ! (INT_MIN <= O_NOFOLLOW && O_NOFOLLOW <= INT_MAX) # undef O_NOFOLLOW # endif # if defined O_TTY_INIT && ! (INT_MIN <= O_TTY_INIT && O_TTY_INIT <= INT_MAX) # undef O_TTY_INIT # endif #endif #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 0x40000000 /* Try to not collide with system O_* flags. */ # define GNULIB_defined_O_CLOEXEC 1 #else # define GNULIB_defined_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_IGNORE_CTTY # define O_IGNORE_CTTY 0 #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_NOLINK # define O_NOLINK 0 #endif #ifndef O_NOLINKS # define O_NOLINKS 0 #endif #ifndef O_NOTRANS # define O_NOTRANS 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