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363 lines
9.9 KiB
363 lines
9.9 KiB
/* Like <fcntl.h>, but with non-working flags defined to 0. |
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Copyright (C) 2006-2017 Free Software Foundation, Inc. |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
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/* written by Paul Eggert */ |
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#if __GNUC__ >= 3 |
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@PRAGMA_SYSTEM_HEADER@ |
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#endif |
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@PRAGMA_COLUMNS@ |
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#if defined __need_system_fcntl_h |
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/* Special invocation convention. */ |
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/* Needed before <sys/stat.h>. |
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May also define off_t to a 64-bit type on native Windows. */ |
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#include <sys/types.h> |
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/* On some systems other than glibc, <sys/stat.h> is a prerequisite of |
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<fcntl.h>. On glibc systems, we would like to avoid namespace pollution. |
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But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an |
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extern "C" { ... } block, which leads to errors in C++ mode with the |
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overridden <sys/stat.h> from gnulib. These errors are known to be gone |
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with g++ version >= 4.3. */ |
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#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && (defined __ICC || !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))) |
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# include <sys/stat.h> |
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#endif |
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#@INCLUDE_NEXT@ @NEXT_FCNTL_H@ |
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#else |
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/* Normal invocation convention. */ |
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#ifndef _@GUARD_PREFIX@_FCNTL_H |
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/* Needed before <sys/stat.h>. |
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May also define off_t to a 64-bit type on native Windows. */ |
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#include <sys/types.h> |
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/* On some systems other than glibc, <sys/stat.h> is a prerequisite of |
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<fcntl.h>. On glibc systems, we would like to avoid namespace pollution. |
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But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an |
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extern "C" { ... } block, which leads to errors in C++ mode with the |
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overridden <sys/stat.h> from gnulib. These errors are known to be gone |
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with g++ version >= 4.3. */ |
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#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && (defined __ICC || !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))) |
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# include <sys/stat.h> |
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#endif |
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/* The include_next requires a split double-inclusion guard. */ |
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#@INCLUDE_NEXT@ @NEXT_FCNTL_H@ |
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#ifndef _@GUARD_PREFIX@_FCNTL_H |
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#define _@GUARD_PREFIX@_FCNTL_H |
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#ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */ |
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# include <unistd.h> |
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#endif |
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/* Native Windows platforms declare open(), creat() in <io.h>. */ |
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#if (@GNULIB_OPEN@ || defined GNULIB_POSIXCHECK) \ |
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&& ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) |
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# include <io.h> |
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#endif |
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/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ |
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/* The definition of _GL_ARG_NONNULL is copied here. */ |
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/* The definition of _GL_WARN_ON_USE is copied here. */ |
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/* Declare overridden functions. */ |
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#if @GNULIB_FCNTL@ |
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# if @REPLACE_FCNTL@ |
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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# undef fcntl |
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# define fcntl rpl_fcntl |
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# endif |
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_GL_FUNCDECL_RPL (fcntl, int, (int fd, int action, ...)); |
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_GL_CXXALIAS_RPL (fcntl, int, (int fd, int action, ...)); |
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# else |
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# if !@HAVE_FCNTL@ |
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_GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...)); |
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# endif |
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_GL_CXXALIAS_SYS (fcntl, int, (int fd, int action, ...)); |
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# endif |
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_GL_CXXALIASWARN (fcntl); |
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#elif defined GNULIB_POSIXCHECK |
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# undef fcntl |
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# if HAVE_RAW_DECL_FCNTL |
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_GL_WARN_ON_USE (fcntl, "fcntl is not always POSIX compliant - " |
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"use gnulib module fcntl for portability"); |
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# endif |
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#endif |
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#if @GNULIB_OPEN@ |
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# if @REPLACE_OPEN@ |
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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# undef open |
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# define open rpl_open |
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# endif |
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_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...) |
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_GL_ARG_NONNULL ((1))); |
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_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...)); |
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# else |
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_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...)); |
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# endif |
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/* On HP-UX 11, in C++ mode, open() is defined as an inline function with a |
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default argument. _GL_CXXALIASWARN does not work in this case. */ |
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# if !defined __hpux |
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_GL_CXXALIASWARN (open); |
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# endif |
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#elif defined GNULIB_POSIXCHECK |
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# undef open |
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/* Assume open is always declared. */ |
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_GL_WARN_ON_USE (open, "open is not always POSIX compliant - " |
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"use gnulib module open for portability"); |
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#endif |
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#if @GNULIB_OPENAT@ |
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# if @REPLACE_OPENAT@ |
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# if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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# undef openat |
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# define openat rpl_openat |
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# endif |
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_GL_FUNCDECL_RPL (openat, int, |
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(int fd, char const *file, int flags, /* mode_t mode */ ...) |
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_GL_ARG_NONNULL ((2))); |
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_GL_CXXALIAS_RPL (openat, int, |
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(int fd, char const *file, int flags, /* mode_t mode */ ...)); |
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# else |
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# if !@HAVE_OPENAT@ |
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_GL_FUNCDECL_SYS (openat, int, |
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(int fd, char const *file, int flags, /* mode_t mode */ ...) |
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_GL_ARG_NONNULL ((2))); |
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# endif |
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_GL_CXXALIAS_SYS (openat, int, |
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(int fd, char const *file, int flags, /* mode_t mode */ ...)); |
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# endif |
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_GL_CXXALIASWARN (openat); |
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#elif defined GNULIB_POSIXCHECK |
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# undef openat |
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# if HAVE_RAW_DECL_OPENAT |
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_GL_WARN_ON_USE (openat, "openat is not portable - " |
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"use gnulib module openat for portability"); |
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# endif |
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#endif |
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/* Fix up the FD_* macros, only known to be missing on mingw. */ |
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#ifndef FD_CLOEXEC |
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# define FD_CLOEXEC 1 |
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#endif |
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/* Fix up the supported F_* macros. Intentionally leave other F_* |
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macros undefined. Only known to be missing on mingw. */ |
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#ifndef F_DUPFD_CLOEXEC |
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# define F_DUPFD_CLOEXEC 0x40000000 |
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/* Witness variable: 1 if gnulib defined F_DUPFD_CLOEXEC, 0 otherwise. */ |
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# define GNULIB_defined_F_DUPFD_CLOEXEC 1 |
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#else |
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# define GNULIB_defined_F_DUPFD_CLOEXEC 0 |
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#endif |
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#ifndef F_DUPFD |
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# define F_DUPFD 1 |
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#endif |
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#ifndef F_GETFD |
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# define F_GETFD 2 |
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#endif |
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/* Fix up the O_* macros. */ |
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/* AIX 7.1 with XL C 12.1 defines O_CLOEXEC, O_NOFOLLOW, and O_TTY_INIT |
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to values outside 'int' range, so omit these misdefinitions. |
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But avoid namespace pollution on non-AIX systems. */ |
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#ifdef _AIX |
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# include <limits.h> |
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# if defined O_CLOEXEC && ! (INT_MIN <= O_CLOEXEC && O_CLOEXEC <= INT_MAX) |
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# undef O_CLOEXEC |
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# endif |
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# if defined O_NOFOLLOW && ! (INT_MIN <= O_NOFOLLOW && O_NOFOLLOW <= INT_MAX) |
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# undef O_NOFOLLOW |
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# endif |
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# if defined O_TTY_INIT && ! (INT_MIN <= O_TTY_INIT && O_TTY_INIT <= INT_MAX) |
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# undef O_TTY_INIT |
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# endif |
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#endif |
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#if !defined O_DIRECT && defined O_DIRECTIO |
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/* Tru64 spells it 'O_DIRECTIO'. */ |
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# define O_DIRECT O_DIRECTIO |
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#endif |
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#if !defined O_CLOEXEC && defined O_NOINHERIT |
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/* Mingw spells it 'O_NOINHERIT'. */ |
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# define O_CLOEXEC O_NOINHERIT |
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#endif |
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#ifndef O_CLOEXEC |
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# define O_CLOEXEC 0 |
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#endif |
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#ifndef O_DIRECT |
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# define O_DIRECT 0 |
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#endif |
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#ifndef O_DIRECTORY |
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# define O_DIRECTORY 0 |
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#endif |
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#ifndef O_DSYNC |
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# define O_DSYNC 0 |
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#endif |
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#ifndef O_EXEC |
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# define O_EXEC O_RDONLY /* This is often close enough in older systems. */ |
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#endif |
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#ifndef O_IGNORE_CTTY |
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# define O_IGNORE_CTTY 0 |
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#endif |
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#ifndef O_NDELAY |
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# define O_NDELAY 0 |
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#endif |
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#ifndef O_NOATIME |
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# define O_NOATIME 0 |
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#endif |
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#ifndef O_NONBLOCK |
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# define O_NONBLOCK O_NDELAY |
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#endif |
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/* If the gnulib module 'nonblocking' is in use, guarantee a working non-zero |
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value of O_NONBLOCK. Otherwise, O_NONBLOCK is defined (above) to O_NDELAY |
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or to 0 as fallback. */ |
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#if @GNULIB_NONBLOCKING@ |
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# if O_NONBLOCK |
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# define GNULIB_defined_O_NONBLOCK 0 |
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# else |
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# define GNULIB_defined_O_NONBLOCK 1 |
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# undef O_NONBLOCK |
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# define O_NONBLOCK 0x40000000 |
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# endif |
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#endif |
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#ifndef O_NOCTTY |
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# define O_NOCTTY 0 |
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#endif |
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#ifndef O_NOFOLLOW |
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# define O_NOFOLLOW 0 |
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#endif |
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#ifndef O_NOLINK |
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# define O_NOLINK 0 |
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#endif |
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#ifndef O_NOLINKS |
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# define O_NOLINKS 0 |
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#endif |
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#ifndef O_NOTRANS |
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# define O_NOTRANS 0 |
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#endif |
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#ifndef O_RSYNC |
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# define O_RSYNC 0 |
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#endif |
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#ifndef O_SEARCH |
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# define O_SEARCH O_RDONLY /* This is often close enough in older systems. */ |
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#endif |
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#ifndef O_SYNC |
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# define O_SYNC 0 |
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#endif |
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#ifndef O_TTY_INIT |
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# define O_TTY_INIT 0 |
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#endif |
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#if ~O_ACCMODE & (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH) |
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# undef O_ACCMODE |
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# define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH) |
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#endif |
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/* For systems that distinguish between text and binary I/O. |
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O_BINARY is usually declared in fcntl.h */ |
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#if !defined O_BINARY && defined _O_BINARY |
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/* For MSC-compatible compilers. */ |
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# define O_BINARY _O_BINARY |
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# define O_TEXT _O_TEXT |
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#endif |
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#if defined __BEOS__ || defined __HAIKU__ |
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/* BeOS 5 and Haiku have O_BINARY and O_TEXT, but they have no effect. */ |
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# undef O_BINARY |
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# undef O_TEXT |
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#endif |
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#ifndef O_BINARY |
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# define O_BINARY 0 |
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# define O_TEXT 0 |
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#endif |
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/* Fix up the AT_* macros. */ |
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/* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive. Its |
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value exceeds INT_MAX, so its use as an int doesn't conform to the |
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C standard, and GCC and Sun C complain in some cases. If the bug |
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is present, undef AT_FDCWD here, so it can be redefined below. */ |
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#if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553 |
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# undef AT_FDCWD |
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#endif |
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/* Use the same bit pattern as Solaris 9, but with the proper |
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signedness. The bit pattern is important, in case this actually is |
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Solaris with the above workaround. */ |
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#ifndef AT_FDCWD |
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# define AT_FDCWD (-3041965) |
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#endif |
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/* Use the same values as Solaris 9. This shouldn't matter, but |
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there's no real reason to differ. */ |
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#ifndef AT_SYMLINK_NOFOLLOW |
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# define AT_SYMLINK_NOFOLLOW 4096 |
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#endif |
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#ifndef AT_REMOVEDIR |
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# define AT_REMOVEDIR 1 |
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#endif |
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/* Solaris 9 lacks these two, so just pick unique values. */ |
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#ifndef AT_SYMLINK_FOLLOW |
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# define AT_SYMLINK_FOLLOW 2 |
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#endif |
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#ifndef AT_EACCESS |
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# define AT_EACCESS 4 |
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#endif |
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#endif /* _@GUARD_PREFIX@_FCNTL_H */ |
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#endif /* _@GUARD_PREFIX@_FCNTL_H */ |
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#endif
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