/* Like <fcntl.h>, but with non-working flags defined to 0.
- Copyright (C) 2006-2008 Free Software Foundation, Inc.
+ Copyright (C) 2006-2014 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
#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>
-#include <sys/stat.h>
-#include <unistd.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 && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
+# include <sys/stat.h>
+#endif
#@INCLUDE_NEXT@ @NEXT_FCNTL_H@
#else
/* Normal invocation convention. */
-#ifndef _GL_FCNTL_H
+#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>
-#include <sys/stat.h>
-#include <unistd.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 && !(__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@
-#ifndef _GL_FCNTL_H
-#define _GL_FCNTL_H
+#ifndef _@GUARD_PREFIX@_FCNTL_H
+#define _@GUARD_PREFIX@_FCNTL_H
+
+#ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems. */
+# include <unistd.h>
+#endif
+
+/* Native Windows platforms declare open(), creat() in <io.h>. */
+#if (@GNULIB_OPEN@ || defined GNULIB_POSIXCHECK) \
+ && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
+# include <io.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. */
-#ifdef __cplusplus
-extern "C" {
+#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, ...));
+# else
+# if !@HAVE_FCNTL@
+_GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...));
+# 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@
-# undef open
-# define open rpl_open
-extern int open (const char *filename, int flags, ...);
+# 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
-#ifdef FCHDIR_REPLACEMENT
-/* gnulib internal function. */
-extern void _gl_register_fd (int fd, const char *filename);
+#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
-#ifdef __cplusplus
-}
+
+/* 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. */
#if !defined O_DIRECT && defined O_DIRECTIO
-/* Tru64 spells it `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 0
+#endif
+
#ifndef O_DIRECT
# define O_DIRECT 0
#endif
# 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
# 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
# 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
# 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 /* _GL_FCNTL_H */
-#endif /* _GL_FCNTL_H */
+#endif /* _@GUARD_PREFIX@_FCNTL_H */
+#endif /* _@GUARD_PREFIX@_FCNTL_H */
#endif
projects / gnulib.git / blobdiff