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Diffstat (limited to '')
| -rw-r--r-- | lib/fcntl.in.h | 441 |
1 files changed, 441 insertions, 0 deletions
diff --git a/lib/fcntl.in.h b/lib/fcntl.in.h new file mode 100644 index 0000000..200fa91 --- /dev/null +++ b/lib/fcntl.in.h @@ -0,0 +1,441 @@ +/* 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)); +# elif defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef creat +# define creat _creat +# endif +_GL_CXXALIAS_MDA (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"); +#elif @GNULIB_MDA_CREAT@ +/* On native Windows, map 'creat' to '_creat', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::creat always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef creat +# define creat _creat +# endif +/* Need to cast, because in mingw the last argument is 'int mode'. */ +_GL_CXXALIAS_MDA_CAST (creat, int, (const char *filename, mode_t mode)); +# else +_GL_CXXALIAS_SYS (creat, int, (const char *filename, mode_t mode)); +# endif +_GL_CXXALIASWARN (creat); +#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, ...)); +# elif defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef open +# define open _open +# endif +_GL_CXXALIAS_MDA (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"); +#elif @GNULIB_MDA_OPEN@ +/* On native Windows, map 'open' to '_open', so that -loldnames is not + required. In C++ with GNULIB_NAMESPACE, avoid differences between + platforms by defining GNULIB_NAMESPACE::open always. */ +# if defined _WIN32 && !defined __CYGWIN__ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef open +# define open _open +# endif +_GL_CXXALIAS_MDA (open, int, (const char *filename, int flags, ...)); +# else +_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...)); +# endif +# if !defined __hpux +_GL_CXXALIASWARN (open); +# endif +#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 |